S82G-1503-05

IBM Mobile Systems
Hardware Maintenance Manual
Volume 3: ThinkPad Computers

March 1997

We Want Your Comments!
(Please see page 611)

This Manual Supports:

ThinkPad 365C/CD
ThinkPad 365CS/CSD
ThinkPad 365X/XD
ThinkPad 380
ThinkPad 385
ThinkPad 560
ThinkPad 760C/CD
ThinkPad 760E/ED
ThinkPad 760L/LD
ThinkPad 760EL/ELD
ThinkPad 760XL
ThinkPad 760XD
SelectaDock(2625)(2625)(2625)(2635)(2635)(2640)(9546)(9546)(9546)(9547)(9546)(9547)(3547)

IBM Mobile Systems
Hardware Maintenance Manual
Volume 3: ThinkPad Computers

March 1997

We Want Your Comments!
(Please see page 611)

IBM

S82G-1503-05

Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 616.
Sixth Edition (March 1997)

The following paragraph does not apply to the United
Kingdom or any country where such provisions areinconsistent with local law: INTERNATIONAL
BUSINESS MACHINES CORPORATION PROVIDES THIS
PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT
NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULARPURPOSE. Some states do not allow disclaimer of
express or implied warranties in certain transactions,
therefore, this statement may not apply to you.
This publication could include technical inaccuracies or
typographical errors. Changes are periodically made to
the information herein; these changes will be incorporated
in new editions of the publication. IBM may make
improvements and/or changes in the product(s) and/or the
program(s) described in this publication at any time.
This publication was developed for products and services
offered in the United States of America. IBM may not offer
the products, services, or features discussed in thisdocument in other countries, and the information is subject
to change without notice. Consult your local IBM
representative for information on the products, services,and features available in your area.
Requests for technical information about IBM products
should be made to your IBM reseller or IBM marketing
representative.
 Copyright International Business Machines
Corporation 1997. All rights reserved.
Note to U.S. Government users–Documentation related to
Restricted rights–Use, duplication, or disclosure is subject
to restrictions set forth in GSA ADP Schedule Contract
with IBM Corp.

ii

IBM Mobile Systems - ThinkPad HMM Volume 3

About This ManualThis manual contains service and reference information for
IBM ThinkPad 365, 380, 385, 560, 760, and SelectaDockproducts. Use this manual along with the advanced
diagnostic tests to troubleshoot problems effectively.
The manual is divided into sections as follows:

The Introduction section provides general information,
guidelines, and safety information required to service
computers.



The product-specific sections include service,reference, and product-specific parts information.



The Common Devices Checkout section provides
procedures for testing the devices that are commonly
attached to ThinkPad computers.



The Miscellaneous Information section contains
information about acronyms, abbreviations, terms,
and a telephone number listing.
Important

This manual is intended for trained servicers who arefamiliar with ThinkPad products. Use this manual
along with the advanced diagnostic tests totroubleshoot problems effectively.
Before servicing an IBM mobile product, be sure toreview the safety information under “Safety Notices(Multi-lingual Translations)” on page 8 and “Safety
Information” on page 15.

iii

Related Publications
The following mobile product publications are available
through IBM or your IBM Authorized Dealer.

iv

Publication

Part, Form Number

Mobile Systems HMM
Volume 1: Laptop,
Notebook, Portable, andThinkPad Computers(Models L40, CL57, N45,
N51, P70/P75, ThinkPad
300, 350, 500, 510, 710T,
Expansion Unit, Dock I,
Dock II)

30H2356, S82G-1501-01

Mobile Systems HMM
Volume 2: ThinkPad
Computers(Model 340, 355, 360, 370,
700, 701, 720, 750, 755)

30H2357, S82G-1502-03

ThinkPad 700 (9552) HMS

42G2016, S42G-2016

ThinkPad 700 (9552) HMR

42G2015, S42G-2015

ThinkPad 700C (9552) HMS

42G2022, S42G-2022

ThinkPad 700C (9552) HMR

42G2021, S42G-2021

ThinkPad 720/720C (9552)
HMS

61G1193, S61G-1193

ThinkPad 720/720C (9552)
HMR

61G1187, S61G-1187

ThinkPad 730T (2524) HMM

82G5497, S82G-5497

ThinkPad Exp. Crtg. (3550)
HMS

42G2338, S42G-2338

ThinkPad Exp. Crtg. (3550)
HMR

42G2339, S42G-2339

PS/2 FaxConcentrator HMS

15F2262, S15F-2262

PS/2 FaxConcentrator HMR

84F8541, S84F-8541

PS/2 Comm. Cartridge I
HMS

10G5993, S10G-5993

PS/2 Comm. Cartridge I
HMR

10G5992, S10G-5992

IBM High Speed Internal,
PCMCIA Data/Fax Modems

61G1556, S61G-1556

IBM Mobile Systems - ThinkPad HMM Volume 3

Related Diskettes
The following diskettes are available through IBM or your
IBM Authorized Dealer.
Diskette

Part, Form Number

ThinkPad 300 (2615)
Advanced Diagnostics
Diskette

33G9361, S33G-9361

ThinkPad 350, 350C, 425,
425C (2618) Advanced
Diagnostics Diskette

A211000, GA21-1000

ThinkPad 365 (2625)
Advanced Diagnostics
Diskette

76H7578, S30H-2498

ThinkPad 500 (2603)
Advanced Diagnostics
Diskette

71G3702, S71G-3702

ThinkPad 510 (2604)
Advanced Diagnostics
Diskette

83G8095, S83G-8095

ThinkPad 700 (9552)
Reference Diskette

42G2017, S42G-2017

ThinkPad 700C (9552)
Reference Diskette

42G2023, S42G-2023

ThinkPad 720/720C (9552)
Reference Diskette

61G1194, S61G-1194

ThinkPad Hardware
Maintenance Diskette(for all Models 355, 360,
560, 750, 755, 760)

78H5384, S78H-5384

ThinkPad Dock I (3545)

71G4140, S71G-4140

Docking Station (3550)

42G2428, S42G-2428

Data/Fax Modem

61G1556, S61G-1556

FaxConcentrator/A

84F8540, S84F-8540v

vi

IBM Mobile Systems - ThinkPad HMM Volume 3

Contents
Introduction . . . . . . . . . . . . . . . . . . .
1
Portable Computer Descriptions . . . . . . . . . .
2
Drive and Diskette Compatibility Matrix . . . . . . .
5Important Service Information. . . . . . . . . . .
6
Safety Notices (Multi-lingual Translations). . . . .
8
Safety Information. . . . . . . . . . . . . . . . 15
Laser Compliance Statement. . . . . . . . . . . 20
Screw Size Chart . . . . . . . . . . . . . . . . . 22
ThinkPad 365 (2625). . . . . . . . . . . . . .
Read This First . . . . . . . . . . . . . . . . . .
General Checkout . . . . . . . . . . . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . . .
Related Service Procedures . . . . . . . . . . . .
Diagnostic Test Programs . . . . . . . . . . . . .
Using the Diagnostics Test Programs. . . . . . .
Product Overview (365C, CD, CS, CSD) . . . . . .
Product Overview (365E, ED) . . . . . . . . . . .
FRU Removals and Replacements . . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . . .
Parts Listing 365C, CD, CS, CSD (2625). . . . .
Parts Listing 365E, ED (2625) . . . . . . . . . . .

25
27
30
41
50
52
54
58
59
60
81
84
87

ThinkPad 365X, 365XD (2625) . . . . . . . . . . 91
Read This First . . . . . . . . . . . . . . . . . . 93
Checkout Guide. . . . . . . . . . . . . . . . . 96
Symptom-to-FRU Index . . . . . . . . . . . . . 106
Related Service Procedures . . . . . . . . . . . 117
Product Overview (365X, 365XD) . . . . . . . . 126
FRU Removals and Replacements . . . . . . . . 127
Locations . . . . . . . . . . . . . . . . . . . . 164
Parts Listing 365X, 365XD (2625) . . . . . . . . 170
ThinkPad 380, 380D, 385, 385D (2635) . . . . .
Read This First . . . . . . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . .
Related Service Procedures . . . . . . . . . . .
Product Overview (380, 380D, 385, 385D) . . . .
FRU Removals and Replacements . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . .
Parts Listing 380/385 (2635). . . . . . . . . .

183
185
189
199
210
215
216
249
252

ThinkPad 560 (2640). . . . . . . . . . . . .
Read This First . . . . . . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . .
Related Service Procedures . . . . . . . . . . .
Product Overview (560) . . . . . . . . . . . . .
FRU Removals and Replacements . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . .

263
265
268
279
291
296
297
321

 Copyright IBM Corp. 1997vii

Parts Listing 560 (2640). . . . . . . . . . . . .

325

ThinkPad 760 (9546, 9547). . . . . . . . . .
Read This First . . . . . . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . .
Related Service Procedures . . . . . . . . . . .
Product Overview (760) . . . . . . . . . . . . .
FRU Removals and Replacements . . . . . . . .
LCD Removal and Replacement . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N
29H9029) . . . . . . . . . . . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N
73H6599) . . . . . . . . . . . . . . . . . . .
LCD Unit, 10.4 SVGA (P/N 29H9227). . . . . .
LCD Unit, 10.4 VGA (P/N 46H5355) . . . . . . .
LCD Unit, 11.3 DSTN (P/N 39H6232). . . . . .
LCD Unit, 12.1 XGA. . . . . . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 82H8496). . . . . .
LCD Unit, 12.1 SVGA (P/N 11J8867, ASM P/N
11J8855) . . . . . . . . . . . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 46H5725, ASM P/N
46H5723) . . . . . . . . . . . . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . .
Parts Listing 760 (9546, 9547). . . . . . . . .
LCD Parts List
. . . . . . . . . . . . . . . . .

335
338
341
359
372
377
382
427

472
478
483
520

ThinkPad SelectaDock Docking System. . . .
Read This First . . . . . . . . . . . . . . . . .
General Preparation . . . . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . .
Printer . . . . . . . . . . . . . . . . . . . . .
Running Diagnostics. . . . . . . . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . .
Undetermined Problems . . . . . . . . . . . . .
FRU Removals and Replacements . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . .
Parts Listing SelectaDock (3547). . . . . . . .

547
548
550
551
554
559
565
573
574
583
588

Common Devices Checkout . . . . . . . . . .
External Diskette Drive Test . . . . . . . . . . .
External Display Self-Test . . . . . . . . . . . .
External Keyboard/Auxiliary Input Device Checkout
Fax/Modem Checkout . . . . . . . . . . . . . .
Printer Checkout. . . . . . . . . . . . . . . .
Port Replicator Checkout. . . . . . . . . . . .
TrackPoint Checkout. . . . . . . . . . . . . .
TV Tuner . . . . . . . . . . . . . . . . . . . .

591
592
592
593
594
596
597
598
599

Common Parts Listing. . . . . . . . . . . . .

605

Miscellaneous Information . . . . . . . . . . .
Acronyms, Abbreviations and Terms . . . . . . .
Send Us Your Comments! . . . . . . . . . . . .

609
609
611

viii

IBM Mobile Systems - ThinkPad HMM Volume 3

428
433
439
444
449
454
460
466

Do You Need Technical References?
. . . . . .
Problem Determination Tips . . . . . . . . . . .
Phone Numbers, U.S. and Canada . . . . . . . .
Notices . . . . . . . . . . . . . . . . . . . . .

612
613
614
616

Contentsix

x

IBM Mobile Systems - ThinkPad HMM Volume 3

Introduction
Portable Computer Descriptions . . . . . . . . . .
Drive and Diskette Compatibility Matrix . . . . . . .
Important Service Information. . . . . . . . . . .
How to Use Error Messages. . . . . . . . . .
How to Read POST Error Messages. . . . . .
Safety Notices (Multi-lingual Translations). . . . .
Safety Information. . . . . . . . . . . . . . . .
General Safety. . . . . . . . . . . . . . . .
Electrical Safety . . . . . . . . . . . . . . . .
Safety Inspection Guide. . . . . . . . . . . .
Handling Electrostatic Discharge-Sensitive Devices
Grounding Requirements . . . . . . . . . . . .
Laser Compliance Statement. . . . . . . . . . .
Screw Size Chart . . . . . . . . . . . . . . . . .

2
5
6
7
7
8
15
15
16
17
19
19
20
22

 Copyright IBM Corp. 19971

Portable Computer Descriptions
Models N51, CL57, and P70/75 and Thinkpads 700x and
720x are Micro Channel systems. All others are AT/ISA
bus systems.
Model

Type

MemoryHrd Dsk

Model L40SX
Model N45 SL

8543-044 386SX-20
2M/18M
2614-065 386SL-25
2M/8M
2614-067 386SL-25
2M/8M
8551-025 386SLC-16
2M/10M
8551-033 386SX-16
2M/10M
8554-045 386SX-20
2M/16M
8573-031 80386-16
2M/8M
8573-061 80386-20
2M/8M
8573-121 80386-20
2M/8M
8573-161 80486-33
8M/16M
8573-401 80486-33
8M/16M
2615-065 386SL-25
4M/12M
2615-067 386SL-25
4M/12M
2610
486SLC2-50/25
4M/12M
2610
486SLC2-50/25
4M/12M
2610
486SLC2-66/33
4M/12M
2610
486DX4-75
4M/20M
2610
DX4-75
4M/20M
2618-AOE 486SL-25
4M/20M
2618-JOA 486SL-25
4M/20M
2618-LOA 486SL-25
4M/20M
2618-NOA 486SL-25
4M/20M
2618-POA 486SL-25
4M/20M
2619
486SX-33
4M/16M
2619
486SX-33
4M/16M
2619
486SX-33
4M/16M
2619
486SX-33
2M/16M
2619
486SX-33
2M/16M
2620
486SX-33
4M/16M
2620
486SX-33
4M/16M
2620
486SX-33
4M/16M
2620
486SX-33
4M/16M
2620
486SX-33
4M/16M
2620
486SX-33
4M/16M
2620
486DX2-50/25
4M/16M
2620
486DX2-50/25
4M/16M
2620
486DX2-50/25
4M/16M
2620
486DX2-50/25
4M/16M
2620
486DX2-50/25
4M/16M
2620
486DX2-50/25
4M/16M
2620
486SX-33
4M/16M
2620
486SX-33
4M/16M
2625-205 486DX4-75
8M/24M
2625-x05 486DX4-75
8M/24M
2625
5x86-100/33
8M/24M
2625
5x86-100/33
8M/24M
2625
Pentium-100
8M/24M
2625
Pentium-100
8M/24M
2625
Pentium-100
8M/24M
2625
Pentium-120
8M/24M
2625
Pentium-120
8M/24M
2625
Pentium-120
8M/24M
2625
Pentium-133
8M/40M
2625
Pentium-133
8M/40M
2625
Pentium-133
8M/40M
9545
486DX4-75/25
4M/32M
9545
486DX4-75/25
4M/32M
9545
486DX4-75/33
4M/32MT
TabletTPF
ThinkPad File

60M
80M
120M
80M
40M
80M
30M
60M
120M
160M
400M
80M
120M
125M
200M
360M
360M
540M
85M
125M
250M
125M
250M
125M
125M
250M
170M
250M
170M
340M
170M
340M
170M
340M
170M
340M
540M
170M
340M
540M
170M
340M
340M
540M
540M
540M
540M
810M
1.0G
540M
810M
1.0G
810M
1.0G
1.3G
340M
540M
810M

Model N51 SLC
Model N51 SX
Model CL57 SX
Model P70 386

Model P75 486
ThinkPad 300
ThinkPad 340
ThinkPad 340CSE
ThinkPad 340CSE
ThinkPad 345
ThinkPad 345CS
ThinkPad 350

ThinkPad 350C
ThinkPad 355
ThinkPad 355C
ThinkPad 355Cs
ThinkPad 360
ThinkPad 360C
ThinkPad 360Cs
ThinkPad 360Ce

ThinkPad 360Cse

ThinkPad 360P
ThinkPad 365C
ThinkPad 365E
ThinkPad 365ED
ThinkPad 365X/XD

ThinkPad 365X/XD

ThinkPad 365X/XD

ThinkPad 370C

C
M
P

2

Color
Megabyte
Pen

Processor

IBM Mobile Systems - ThinkPad HMM Volume 3

ModelType

MemoryHrd Dsk

ThinkPad 380

2635
Pentium-150
16M/48M
2635
Pentium-150
16M/48M
2635
Pentium-150
16M/48M
2635
Pentium-150
16M/48M
2635
Pentium-150
16M/48M
2635
Pentium-150
16M/48M
2603-081 486SLC2-50/25
4M/12M
2603-171 486SLC2-50/25
4M/12M
2640
Pentium-100
8M/40M
2640
Pentium-100
8M/40M
2640
Pentium-100
8M/40M
2640
Pentium-120
8M/40M
2640
Pentium-120
8M/40M
2640
Pentium-120
8M/40M
2640
Pentium-130
8M/40M
2640
Pentium-130
8M/40M
2640
Pentium-130
8M/40M
9552-300 486SLC-25
4M/16M
9552-301 486SLC-25
4M/16M
9552-30B 486SLC-25
4M/16M
2630
486DX2-25/50
4M/32M
2630
486DX2-25/50
4M/32M
2630
486DX4-25/75
8M/32M
2630
486DX4-25/75
8M/32M
2630
486DX2-25/50
4M/32M
2630
486DX2-25/50
4M/32M
2630
486DX4-25/75
8M/32M
2630
486DX4-25/75
8M/32M
2523-09Y 486SLC2-25
4M/12M
2523-302 486SLC2-25
4M/12M
2523-303 486SLC2-25
4M/12M
9552-307 486SLC-25/50
4M/16M
9552-308 486SLC-25/50
4M/16M
9552-30J 486SLC-25/50
4M/16M
2524
486SLC2-25
4M/12M
2524
486SLC2-25
4M/12M
9545-006 486SL-33
4M/20M
9545-008 486SL-33
4M/20M
9545-306 486SL-33
4M/20M
9545-308 486SL-33
4M/20M
9545
P24S-50/25
4M/20M
9545
486SL-33
4M/20M
9545
486SL-33
4M/20M
9545-40C 486SL-33
4M/20M
9545-40E 486SL-33
4M/20M
9545
486DX4-50/25
4M/32M
9545
486DX4-50/25
4M/32M
9545
486DX4-50/25
4M/32M
9545
486DX4-75/25
4M/32M
9545
486DX4-75/25
4M/32M
9545
486DX4-75/25
4M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-50/25
8M/32M
9545
486DX4-50/25
8M/32M
9545
486DX4-50/25
8M/32M
9545
486DX4-75/25
8M/32M
9545
486DX4-75/25
8M/32M
9545
486DX4-75/25
8M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-100/33
8M/32M
9545
486DX4-100/33
8M/32MT
TabletTPF
ThinkPad File

1.08G
1.35G
2.10G
1.08G
1.35G
2.10G
80M
170M
540M
810M
1.0G
540M
810M
1.0G
540M
810M
1.0G
80M
120M
120M
360MB
540MB
360MB
540MB
360MB
540MB
360MB
540MB
TPF
60M
60M
120M
160M
160M
0M
60M
170M
340M
170M
340M
340M
170M
340M
170M
340M
170M
340M
540M
170M
340M
540M
540M
810M
540M
810M
340M
540M
810M
170M
340M
540M
170M
340M
540M
340M
540M
810M

ThinkPad 385

ThinkPad 500
ThinkPad 560

ThinkPad 560

ThinkPad 560

ThinkPad 700
ThinkPad 700C
ThinkPad 701C

ThinkPad 701Cs

ThinkPad 710T

ThinkPad 720
ThinkPad 720C
ThinkPad 730T
ThinkPad 750
ThinkPad 750C
ThinkPad 750Ce
ThinkPad 750Cs
ThinkPad 750P
ThinkPad 755C

ThinkPad 755CD
ThinkPad 755CDVThinkPad 755Ce

ThinkPad 755Cs

ThinkPad 755Cse

C
M
P

Color
Megabyte
Pen

Processor

Introduction3Model

Type

Processor

MemoryHrd Dsk

ThinkPad 755CV

9545
9545
9545
9545
9546
9546
9546
9546
9546
9546
9546
9546
9546
9547
9547
9547
9547
9547
9547
9547
9547
9547
9547
9547
9547
9547
9547
9547
9546
9546
9547
9547

486DX4-100/33
486DX4-100/33
486DX4-100/33
486DX4-100/33
Pentium-90
Pentium-120
Pentium-90
Pentium-120
Pentium-120
Pentium-133
Pentium-150
Pentium-166
Pentium-166
Pentium-100
Pentium-100
Pentium-100
Pentium-120
Pentium-120
Pentium-120
Pentium-133
Pentium-133
Pentium-133
Pentium-90
Pentium-90
Pentium-90
Pentium-120
Pentium-120
Pentium-120
Pentium-150
Pentium-166
Pentium-166
Pentium-166

8M/32M
8M/32M
8M/32M
8M/32M
8M/40M
8M/40M
8M/40M
8M/40M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/80M
8M/40M
8M/40M
8M/40M
8M/40M
8M/40M
8M/40M
32M/80M
32M/80M
16M/80M
16M/80M

540M
810M
540M
810M
360M
720M
810M
1.2G
810M
1.0G
1.2G
1.3G
2.1G
810M
1.0G
1.2G
810M
1.0G
1.2G
810M
1.0G
1.2G
810M
1.1G
1.2G
810M
1.1G
1.2G
3.0G
3.0G
2.1G
3.0G

ThinkPad 755CV
ThinkPad 760C/CD

ThinkPad 760E/ED

ThinkPad 760EL/ELD

ThinkPad 760L/LD

ThinkPad 760X
ThinkPad 760XD
ThinkPad 760XL

C
M
P

4

Color
Megabyte
Pen

T
TPF

TabletThinkPad File

IBM Mobile Systems - ThinkPad HMM Volume 3

Drive and Diskette Compatibility Matrix
The following table provides identification information for
3.5-inch drives.
Diskette
Drive

Identifying
Mark

3.5-Inch - 1.44MB
3.5-Inch - 2.88MB

1.44 on the eject button
2.88 on the eject button

The following table provides compatibility information for
3.5-inch diskettes and 3.5-inch diskette drives.
Diskette
Capacity

1.44MB
Drive

2.88MB
Drive

1.0MB
2.0MB
4.0MB

Read/Write
Read/Write
Not Compatible

Read/Write
Read/Write
Read/Write

The following table provides identification information for
5.25-inch diskette drives.
Diskette
Drive

Identifying
Mark5.25-Inch - 360KB (External)
5.25-Inch - 1.2MB (Internal)

Asterisk on bezel
1.2 on the eject button

The following table provides compatibility information for
5.25-inch diskettes and 5.25-inch diskette drives.
Diskette
Capacity

360KB
Drive

1.2MB
Drive

360KB
1.2MB

Read/Write
Not Compatible

Read/Write
Read/Write

Note: A 360KB diskette written to or formatted on a
1.2MB drive can be read reliably only on a 1.2MB
drive.

Introduction

5

Important Service Information
Important
Diskette fixes are customer installable. The diskette
fixes are located on the PC Company Bulletin Board
Service (BBS). The direct phone line for modem
connection is 919-557-0001 or tieline 255-0001.
Advise customers to contact the PC Company
HelpCenter at 800-772-2227 if they need assistance inobtaining or installing any diskette fixes.
Customers in Canada should call IBM HelpPC at
800-565-3344 for assistance or down-load information.
The Canadian BBS phone numbers are:Montreal
TorontoVancouver
Winnipeg

514-938-3022
905-316-4255
604-664-6464
204-934-2735

FRU Replacement Strategy
Before Replacing Parts
Ensure that all diskette fixes are installed prior to
replacing any FRUs listed in this manual.
Use the following strategy to prevent unnecessary FRU
replacement and service expense:

If you are instructed to replace a FRU and that
does not correct the problem, reinstall the original
FRU before you continue.
Some computers have both a processor board and asystem board. If you are instructed to replace either
the processor board or the system board, and the first
board that you replaced does not correct the problem,
reinstall the original board, then replace the other(processor or system) board.
If an adapter or device consists of more than one
FRU, an error code may be caused by any of the
FRUs. Before replacing the adapter or device,
remove the FRUs, one by one, to see if thesymptoms change. Replace only the FRU thatchanged the symptoms.
Attention

A customized setup configuration (other than default
settings) may exist on the computer you are servicing.
Running Automatic Configuration may alter thosesettings. Note the current configuration settings (using
the View Configuration option) and verify that thesettings are in place when service is complete.

6

IBM Mobile Systems - ThinkPad HMM Volume 3

The advanced diagnostic tests are intended to test only
IBM products. Non-IBM products or modified options cangive false errors and invalid responses.

Hard Disk Drive Replacement Strategy:
Always try to run a low-level format before replacing a harddisk drive.
Attention
The drive startup sequence in the computer you areservicing might have been changed. Be extremely
careful during write operations such as copying,saving, or formatting. Data or programs can be
overwritten if you select an incorrect drive.

How to Use Error Messages
Use the error codes displayed on the screen to diagnose
failures. If more than one error code is displayed, begin
the diagnosis with the first error code. The cause of thefirst error code can result in false error codes being
displayed. If no error code is displayed, see if the error
symptom is listed in the Symptom-to-FRU Index for thecomputer you are servicing.

How to Read POST Error Messages
POST error messages are displayed on the screen as
three, four, five, or eight digits. The error messages thatcan be displayed as shorter POST messages arehighlighted in this index. Some digits will represent
different information for SCSI errors versus non-SCSI
errors.
The following example shows which digits display theshorter POST error messages and also defines the SCSI
information in an eight-digit error message.
Shorter POST Messages┌────┬────┬────┬────┐
│
│
│
│
│
┌────┬────┬────┬────┬────┬────┬────┬────┐│ ð │ ð │ ð │ ð │ ð │ ð │ ð │ ð │└────┴────┴────┴────┴────┴────┴────┴────┘
│
│
│
│
│
│
│
│
Reserved │
│
│
│
│
│
Size (SCSI)└────┴────┘││Slot Number (SCSI)
Device Code│
Logical Unit Number (SCSI)ID (SCSI)All SCSI devices are set to a different SCSI ID.
Duplicate SCSI ID settings can generate a false error
message. Use the SCSI ID to determine whether the error
message is coming from an internal or an external device.

Introduction7

Safety Notices (Multi-lingual
Translations)
In this manual, safety notices appear in English with apage number reference to the appropriate multi-lingual,translated safety notice found in this section.
The following safety notices are provided in English,
French, German, Italian, and Spanish languages.
Safety Notice 1
Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or othersmall parts are in place and are not left loose inside
the computer. Verify this by shaking the computerand listening for rattling sounds. Metallic parts or
metal flakes can cause electrical shorts.
Avant de remettre l'ordinateur sous tension après
remplacement d'une unité en clientèle, vérifiez que
tous les ressorts, vis et autres pièces sont bien enplace et bien fixées. Pour ce faire, secouez l'unité etassurez-vous qu'aucun bruit suspect ne se produit.
Des pièces métalliques ou des copeaux de métal
pourraient causer un court-circuit.
Bevor nach einem FRU-Austausch der Computer
wieder angeschlossen wird, muß sichergestellt
werden, daß keine Schrauben, Federn oder andere
Kleinteile fehlen oder im Gehäuse vergessen wurden.
Der Computer muß geschüttelt und auf
Klappergeräusche geprüft werden. Metallteile oder
-splitter können Kurzschlüsse erzeugen.
Prima di accendere l'elaboratore dopo che é stata
effettuata la sostituzione di una FRU, accertarsi che
tutte le viti, le molle e tutte le altri parti di piccole
dimensioni siano nella corretta posizione e non siano
sparse all'interno dell'elaboratore. Verificare ciò
scuotendo l'elaboratore e prestando attenzione ad
eventuali rumori; eventuali parti o pezzetti metallici
possono provocare cortocircuiti pericolosi.
Antes de encender el sistema despues de sustituir
una FRU, compruebe que todos los tornillos, muelles
y demás piezas pequeñas se encuentran en su sitio yno se encuentran sueltas dentro del sistema.
Compruébelo agitando el sistema y escuchando losposibles ruidos que provocarían. Las piezas metálicas
pueden causar cortocircuitos eléctricos.

8

IBM Mobile Systems - ThinkPad HMM Volume 3Safety Notice 2
Some standby batteries contain a small amount ofnickel and cadmium. Do not disassemble it, recharge
it, throw it into fire or water, or short-circuit it. Disposeof the battery as required by local ordinances orregulations. Use only the battery in the appropriate
parts listing. Use of an incorrect battery can result in
ignition or explosion of the battery.
Certaines batteries de secours contiennent du nickel
et du cadmium. Ne les démontez pas, ne lesrechargez pas, ne les exposez ni au feu ni à l'eau.
Ne les mettez pas en court-circuit. Pour les mettre au
rebut, conformez-vous à la réglementation en vigueur.
Lorsque vous remplacez la pile de sauvegarde ou
celle de l'horloge temps réel, veillez à n'utiliser que lesmodèles cités dans la liste de pièces détachéesadéquate. Une batterie ou une pile inappropriéerisque de prendre feu ou d'exploser.
Die Bereitschaftsbatterie, die sich unter dem
Diskettenlaufwerk befindet, kann geringe Mengen
Nickel und Cadmium enthalten. Sie darf nur durch die
Verkaufsstelle oder den IBM Kundendienst
ausgetauscht werden. Sie darf nicht zerlegt,
wiederaufgeladen, kurzgeschlossen, oder Feuer oder
Wasser ausgesetzt werden. Die Batterie kannschwere Verbrennungen oder Verätzungenverursachen. Bei der Entsorgung die örtlichen
Bestimmungen für Sondermüll beachten. Beim
Ersetzen der Bereitschafts- oder Systembatterie nur
Batterien des Typs verwenden, der in derErsatzteilliste aufgeführt ist. Der Einsatz falscher
Batterien kann zu Entzündung oder Explosion führen.
Alcune batterie di riserva contengono una piccola
quantità di nichel e cadmio. Non smontarle, ricaricarle,
gettarle nel fuoco o nell'acqua né cortocircuitarle.
Smaltirle secondo la normativa in vigore (DPR 915/82,
successive disposizioni e disposizioni locali). Quando
si sostituisce la batteria dell'RTC (real time clock) o labatteria di supporto, utilizzare soltanto i tipi inseriti
nell'appropriato Catalogo parti. L'impiego di una
batteria non adatta potrebbe determinare l'incendio ol'esplosione della batteria stessa.
Algunas baterías de reserva contienen una pequeña
cantidad de níquel y cadmio. No las desmonte, ni
recargue, ni las eche al fuego o al agua ni lascortocircuite. Deséchelas tal como dispone lanormativa local. Utilice sólo baterías que seencuentren en la lista de piezas. La utilización de una
batería no apropiada puede provocar la ignición oexplosión de la misma.

Introduction9Safety Notice 3
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack asrequired by local ordinances or regulations. Use only
the battery in the appropriate parts listing whenreplacing the battery pack. Use of an incorrect battery
can result in ignition or explosion of the battery.
La batterie contient du nickel. Ne la démontez pas,
ne l'exposez ni au feu ni à l'eau. Ne la mettez pas en
court-circuit. Pour la mettre au rebut, conformez-vousà la réglementation en vigueur. Lorsque vous
remplacez la batterie, veillez à n'utiliser que lesmodèles cités dans la liste de pièces détachéesadéquate. En effet, une batterie inappropriée risquede prendre feu ou d'exploser.
Akkus enthalten geringe Mengen von Nickel. Sie
dürfen nicht zerlegt, wiederaufgeladen,
kurzgeschlossen, oder Feuer oder Wasser ausgesetzt
werden. Bei der Entsorgung die örtlichen
Bestimmungen für Sondermüll beachten. Beim
Ersetzen der Batterie nur Batterien des Typs
verwenden, der in der Ersatzteilliste aufgeführt ist.
Der Einsatz falscher Batterien kann zu Entzündungoder Explosion führen.
La batteria contiene piccole quantità di nichel. Nonsmontarla, gettarla nel fuoco o nell'acqua né
cortocircuitarla. Smaltirla secondo la normativa invigore (DPR 915/82, successive disposizioni edisposizioni locali). Quando si sostituisce la batteria,
utilizzare soltanto i tipi inseriti nell'appropriato
Catalogo parti. L'impiego di una batteria non adatta
potrebbe determinare l'incendio o l'esplosione dellabatteria stessa.
Las baterías contienen pequeñas cantidades deníquel. No las desmonte, ni recargue, ni las eche alfuego o al agua ni las cortocircuite. Deséchelas tal
como dispone la normativa local. Utilice sólo baterías
que se encuentren en la lista de piezas al sustituir labatería. La utilización de una batería no apropiada
puede provocar la ignición o explosión de la misma.

10

IBM Mobile Systems - ThinkPad HMM Volume 3Safety Notice 4
The lithium battery can cause a fire, explosion, orsevere burn. Do not recharge it, remove its polarized
connector, disassemble it, heat it above 100°C(212°F), incinerate it, or expose its cell contents towater. Dispose of the battery as required by local
ordinances or regulations. Use only the battery in theappropriate parts listing. Use of an incorrect battery
can result in ignition or explosion of the battery.
La pile de sauvegarde contient du lithium. Elleprésente des risques d'incendie, d'explosion ou debrûlures graves. Ne la rechargez pas, ne retirez pas
son connecteur polarisé et ne la démontez pas. Ne
l'exposez pas à une temperature supérieure à 100°C,
ne la faites pas brûler et n'en exposez pas le contenu
à l'eau. Mettez la pile au rebut conformément à laréglementation en vigueur. Une pile inappropriéerisque de prendre feu ou d'exploser.
Die Systembatterie ist eine Lithiumbatterie. Sie kannsich entzünden, explodieren oder schwere
Verbrennungen hervorrufen. Batterien dieses Typs
dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt
oder verbrannt werden. Auch darf ihr Inhalt nicht mit
Wasser in Verbindung gebracht oder der zur richtigen
Polung angebrachte Verbindungsstecker entfernt
werden. Bei der Entsorgung die örtlichen
Bestimmungen für Sondermüll beachten. Beim
Ersetzen der Batterie nur Batterien des Typs
verwenden, der in der Ersatzteilliste aufgeführt ist.
Der Einsatz falscher Batterien kann zu Entzündungoder Explosion führen.
La batteria di supporto e una batteria al litio e puo
incendiarsi, esplodere o procurare gravi ustioni.
Evitare di ricaricarla, smontarne il connettore
polarizzato, smontarla, riscaldarla ad una temperaturasuperiore ai 100 gradi centigradi, incendiarla o gettarlain acqua. Smaltirla secondo la normativa in vigore(DPR 915/82, successive disposizioni e disposizioni
locali). L'impiego di una batteria non adatta potrebbe
determinare l'incendio o l'esplosione della batteria
stessa.
La bateria de repuesto es una bateria de litio y puede
provocar incendios, explosiones o quemaduras
graves. No la recargue, ni quite el conector
polarizado, ni la desmonte, ni caliente por encima delos 100°C (212°F), ni la incinere ni exponga elcontenido de sus celdas al agua. Deséchela tal como
dispone la normativa local.

Introduction11

Safety Notice 5
If the LCD breaks and the fluid from inside the LCDgets into your eyes or on your hands, immediately
wash the affected areas with water for at least 15
minutes. Seek medical care if any symptoms from thefluid are present after washing.
Si le panneau d'affichage à cristaux liquides se briseet que vous recevez dans les yeux ou sur les mains
une partie du fluide, rincez-les abondamment pendant
au moins quinze minutes. Consultez un médecin si
des symptômes persistent après le lavage.
Die Leuchtstoffröhre im LCD-Bildschirm enthält
Quecksilber. Bei der Entsorgung die örtlichen
Bestimmungen für Sondermüll beachten. Der
LCD-Bildschirm besteht aus Glas und kannzerbrechen, wenn er unsachgemäß behandelt wirdoder der Computer auf den Boden fällt. Wenn der
Bildschirm beschädigt ist und die darin befindliche
Flüssigkeit in Kontakt mit Haut und Augen gerät,
sollten die betroffenen Stellen mindestens 15 Minuten
mit Wasser abgespült und bei Beschwerden
anschließend ein Arzt aufgesucht werden.
Nel caso che caso l'LCD si dovesse rompere ed illiquido in esso contenuto entrasse in contatto con gli
occhi o le mani, lavare immediatamente le partiinteressate con acqua corrente per almeno 15 minuti;
poi consultare un medico se i sintomi dovessero
permanere.
Si la LCD se rompe y el fluido de su interior entra encontacto con sus ojos o sus manos, lave
inmediatamente las áreas afectadas con agua durante
15 minutos como mínimo. Obtenga atención medica
si se presenta algún síntoma del fluido despues delavarse.

12

IBM Mobile Systems - ThinkPad HMM Volume 3Safety Notice 6
To avoid shock, do not remove the plastic cover thatsurrounds the lower portion of the inverter card.
Afin d'éviter tout risque de choc électrique, ne retirez
pas le cache en plastique protégeant la partie
inférieure de la carte d'alimentation.
Aus Sicherheitsgründen die Kunststoffabdeckung, dieden unteren Teil der Spannungswandlerplatine umgibt,
nicht entfernen.
Per evitare scosse elettriche, non rimuovere lacopertura in plastica che avvolge la parte inferioredella scheda invertitore.
Para evitar descargas, no quite la cubierta de plásticoque rodea la parte baja de la tarjeta invertida.
Safety Notice 7
Though main batteries have low voltage, a shorted or
grounded battery can produce enough current to burncombustible materials or personnel.
Bien que le voltage des batteries principales soit peuélevé, le court-circuit ou la mise à la masse d'une
batterie peut produire suffisamment de courant pourbrûler des matériaux combustibles ou causer desbrûlures corporelles graves.
Obwohl Hauptbatterien eine niedrige Spannung
haben, können sie doch bei Kurzschluß oder Erdunggenug Strom abgeben, um brennbare Materialien zu
entzünden oder Verletzungen bei Personen
hervorzurufen.
Sebbene le batterie di alimentazione siano a basso
voltaggio, una batteria in corto circuito o a massa può
fornire corrente sufficiente da bruciare materiali
combustibili o provocare ustioni ai tecnici dimanutenzione.
Aunque las baterías principales tienen un voltaje bajo,
una batería cortocircuitada o con contacto a tierra
puede producir la corriente suficiente como paraquemar material combustible o provocar quemaduras
en el personal.

Introduction

13

Safety Notice 8
Before removing any FRU, power-off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, then disconnect any interconnecting
cables.
Avant de retirer une unité remplaçable en clientèle,
mettez le système hors tension, débranchez tous lescordons d'alimentation des socles de prise de courant,
retirez la batterie et déconnectez tous les cordonsd'interface.
Die Stromzufuhr muß abgeschaltet, alle Stromkabel
aus der Steckdose gezogen, der Akku entfernt undalle Verbindungskabel abgenommen sein, bevor eine
FRU entfernt wird.
Prima di rimuovere qualsiasi FRU, spegnere ilsistema, scollegare dalle prese elettriche tutti i cavi dialimentazione, rimuovere la batteria e poi scollegare i
cavi di interconnessione.
Antes de quitar una FRU, apague el sistema,desenchufe todos los cables de las tomas de corriente
eléctrica, quite la batería y, a continuación,
desconecte cualquier cable de conexión entre
dispositivos.

14

IBM Mobile Systems - ThinkPad HMM Volume 3Safety Information
The following section contains the safety information thatyou need to be familiar with before servicing an IBM
mobile computer.

General Safety
Follow these rules to ensure general safety:





















Observe good housekeeping in the area of themachines during and after maintenance.
When lifting any heavy object:
1. Ensure you can stand safely without slipping.
2. Distribute the weight of the object equally
between your feet.
3. Use a slow lifting force. Never move suddenlyor twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg
muscles; this action removes the strain from themuscles in your back. Do not attempt to lift any
objects that weigh more than 16 kg (35 lb) or
objects that you think are too heavy for you.
Do not perform any action that causes hazards to thecustomer, or that makes the equipment unsafe.
Before you start the machine, ensure that otherservice representatives and the customer's personnel
are not in a hazardous position.
Place removed covers and other parts in a safe
place, away from all personnel, while you areservicing the machine.
Keep your tool case away from walk areas so that
other people will not trip over it.
Do not wear loose clothing that can be trapped in themoving parts of a machine. Ensure that your sleeves
are fastened or rolled up above your elbows. If yourhair is long, fasten it.
Insert the ends of your necktie or scarf inside clothingor fasten it with a nonconductive clip, approximately 8centimeters (3 inches) from the end.
Do not wear jewelry, chains, metal-frame eyeglasses,
or metal fasteners for your clothing.
Attention: Metal objects are good electricalconductors.
Wear safety glasses when you are: hammering,
drilling soldering, cutting wire, attaching springs, using
solvents, or working in any other conditions that might
be hazardous to your eyes.
After service, reinstall all safety shields, guards,
labels, and ground wires. Replace any safety device
that is worn or defective.
Reinstall all covers correctly before returning themachine to the customer.

Introduction

15

Electrical Safety
Observe the following rules when working on electricalequipment.
Important
Use only approved tools and test equipment. Somehand tools have handles covered with a soft material
that does not insulate you when working with live
electrical currents.
Many customers have, near their equipment, rubber
floor mats that contain small conductive fibers todecrease electrostatic discharges. Do not use thistype of mat to protect yourself from electrical shock.









Find the room emergency power-off (EPO) switch,
disconnecting switch, or electrical outlet. If anelectrical accident occurs, you can then operate theswitch or unplug the power cord quickly.
Do not work alone under hazardous conditions ornear equipment that has hazardous voltages.
Disconnect all power before:– Performing a mechanical inspection– Working near power supplies– Removing or installing main units
Before you start to work on the machine, unplug thepower cord. If you cannot unplug it, ask the customer
to power-off the wall box that supplies power to themachine and to lock the wall box in the off position.
If you need to work on a machine that has exposed
electrical circuits, observe the following precautions:– Ensure that another person, familiar with thepower-off controls, is near you.

–

–

–

Attention: Another person must be there toswitch off the power, if necessary.
Use only one hand when working withpowered-on electrical equipment; keep the other
hand in your pocket or behind your back.
Attention: There must be a complete circuit tocause electrical shock. By observing the above
rule, you may prevent a current from passing
through your body.
When using testers, set the controls correctly
and use the approved probe leads andaccessories for that tester.
Stand on suitable rubber mats (obtained locally,
if necessary) to insulate you from grounds suchas metal floor strips and machine frames.

Observe the special safety precautions when you
work with very high voltages; these instructions are in
the safety sections of maintenance information. Use
extreme care when measuring high voltages.

16

IBM Mobile Systems - ThinkPad HMM Volume 3













Regularly inspect and maintain your electrical handtools for safe operational condition.
Do not use worn or broken tools and testers.
Never assume that power has been disconnectedfrom a circuit. First, check that it has been
powered-off.
Always look carefully for possible hazards in yourwork area. Examples of these hazards are moist
floors, nongrounded power extension cables, power
surges, and missing safety grounds.
Do not touch live electrical circuits with the reflective
surface of a plastic dental mirror. The surface isconductive; such touching can cause personal injury
and machine damage.
Do not service the following parts with the power onwhen they are removed from their normal operating
places in a machine:– Power supply units– Pumps– Blowers and fans
– Motor generatorsand similar units. (This practice ensures correct
grounding of the units.)
If an electrical accident occurs:– Use caution; do not become a victim
yourself.
– Switch off power.
– Send another person to get medical aid.

Safety Inspection Guide
The intent of this inspection guide is to assist you in
identifying potentially unsafe conditions on these products.
Each machine, as it was designed and built, had required
safety items installed to protect users and service
personnel from injury. This guide addresses only those
items. However, good judgment should be used to identify
potential safety hazards due to attachment of non-IBMfeatures or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine
how serious the apparent hazard could be and whether
you can continue without first correcting the problem.
Consider these conditions and the safety hazards theypresent:Electrical hazards, especially primary power (primaryvoltage on the frame can cause serious or fatal
electrical shock).
Explosive hazards, such as a damaged CRT face orbulging capacitor
Mechanical hazards, such as loose or missing
hardwareIntroduction

17

The guide consists of a series of steps presented in achecklist. Begin the checks with the power off, and thepower cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or
sharp edges).
2. Power-off the computer. Disconnect the power cord.
3. Check the power cord for:a. A third-wire ground connector in good condition.
Use a meter to measure third-wire groundcontinuity for 0.1 ohm or less between theexternal ground pin and frame ground.
b. The power cord should be the appropriate typeas specified in the parts listings.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious non-IBM alterations. Usegood judgment as to the safety of any non-IBM
alterations.
6. Check inside the unit for any obvious unsafe
conditions, such as metal filings, contamination, wateror other liquids, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screws
or rivets) have not been removed or tampered with.

18

IBM Mobile Systems - ThinkPad HMM Volume 3

Handling Electrostatic
Discharge-Sensitive Devices
Any computer part containing transistors or integrated
circuits (ICs) should be considered sensitive to electrostatic
discharge (ESD). ESD damage can occur when there is adifference in charge between objects. Protect against ESD
damage by equalizing the charge so that the machine, thepart, the work mat, and the person handling the part are allat the same charge.
Notes
1. Use product-specific ESD procedures when theyexceed the requirements noted here.
2. Make sure that the ESD protective devices you
use have been certified (ISO 9000) as fully
effective.
When handling ESD-sensitive parts:









Keep the parts in protective packages until they are
inserted into the product.
Avoid contact with other people.
Wear a grounded wrist strap against your skin toeliminate static on your body.
Prevent the part from touching your clothing. Most
clothing is insulative and retains a charge even when
you are wearing a wrist strap.
Use the black side of a grounded work mat to provide
a static-free work surface. The mat is especially
useful when handling ESD-sensitive devices.
Select a grounding system, such as those listed
below, to provide protection that meets the specificservice requirement.
Note
The use of a grounding system is desirable but
not required to protect against ESD damage.
–––Attach the ESD ground clip to any frame ground,ground braid, or green-wire ground.
Use an ESD common ground or reference point
when working on a double-insulated orbattery-operated system. You can use coax orconnector-outside shells on these systems.
Use the round ground-prong of the AC plug on
AC-operated computers.

Grounding Requirements
Electrical grounding of the computer is required for
operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by acertified electrician.

Introduction19Laser Compliance Statement
Some IBM Personal Computer models are equipped fromthe factory with a CD-ROM drive. CD-ROM drives arealso sold separately as options. The CD-ROM drive is alaser product. The CD-ROM drive is certified in the U.S. toconform to the requirements of the Department of Healthand Human Services 21 Code of Federal Regulations(DHHS 21 CFR) Subchapter J for Class 1 laser products.
Elsewhere, the drive is certified to conform to therequirements of the International ElectrotechnicalCommission (IEC) 825 and CENELEC EN 60 825 forClass 1 laser products.
When a CD-ROM drive is installed, note the following.
CAUTION:Use of controls or adjustments or performance ofprocedures other than those specified herein might
result in hazardous radiation exposure.
O uso de controles, ajustes ou desempenho deprocedimentos diferentes daqueles aqui especificados
pode resultar em perigosa exposição à radiação.

Pour éviter tout risque d'exposition au rayon laser,
respectez les consignes de réglage et d'utilisation descommandes, ainsi que les procédures décrites.
Werden Steuer- und Einstellelemente anders als hierfestgesetzt verwendet, kann gefährliche
Laserstrahlung auftreten.

L'utilizzo di controlli, regolazioni o l'esecuzione diprocedure diverse da quelle specificate possono
provocare l'esposizione a

El uso de controles o ajustes o la ejecución deprocedimientos distintos de los aquí especificados

20

IBM Mobile Systems - ThinkPad HMM Volume 3

puede provocar la exposición a radiaciones
peligrosas.
Opening the CD-ROM drive could result in exposure tohazardous laser radiation. There are no serviceable parts
inside the CD-ROM drive. Do not open.
Some CD-ROM drives contain an embedded Class 3A or
Class 3B laser diode. Note the following.
DANGER:
Laser radiation when open. Do not stare into thebeam, do not view directly with optical instruments,
and avoid direct exposure to the beam.
Radiação por raio laser ao abrir. Não olhe fixo no feixe
de luz, não olhe diretamente por meio de instrumentosóticos e evite exposição direta com o feixe de luz.

Rayonnement laser si carter ouvert. Évitez de fixer lefaisceau, de le regarder directement avec desinstruments optiques, ou de vous exposer au rayon.
Laserstrahlung bei geöffnetem Gerät. Nicht direkt oderüber optische Instrumente in den Laserstrahl sehen
und den Strahlungsbereich meiden.
Kinyitáskor lézersugár ! Ne nézzen bele se szabad
szemmel, se optikai eszközökkel. Kerülje asugárnyalábbal való érintkezést !
Aprendo l'unità vengono emesse radiazioni laser. Nonfissare il fascio, non guardarlo direttamente con
strumenti ottici e evitare l'esposizione diretta al fascio.

Radiación láser al abrir. No mire fijamente ni examine
con instrumental óptico el haz de luz. Evite la
exposición directa al haz.

Introduction

21

Screw Size Chart
Use the chart below to match the size and shape of thescrews used in the computer you are servicing.

A

Silver

B

Black

C

Silver

D

Brass

E

Black

F

Black

G

Black

H

Brass

J

Silver

K

Brass

L

SilverM

SilverN

Silver

P

Black

Q

Brass

22

IBM Mobile Systems - ThinkPad HMM Volume 3

Screw Size Chart (continued): Use the chart below
to match the size and shape of the screws used in thecomputer you are servicing.

R

Brass

S

Black

T

Brass

U

Black

V

Brass

W

Black

X

Black

Y

Brass

Z

Brass

AA

Black

BB

Brass

CC

Brass

DD

Black

EE

Black

FF

SilverIntroduction

23

Screw Size Chart (continued): Use the chart below
to match the size and shape of the screws used in thecomputer you are servicing.

GG

Silver

HH

Brass

JJ

Silver

KK

Black

LL

Brass

MM

Brass

NN

Silver

PP

Brass

QQ

Brass

RR

Brass

SS

Brass

TT

Black

UU

Black

WW

Silver

XX

Black

24

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 365 (2625)
Read This First . . . . . . . . . . . . . . . . . .
What to Do First . . . . . . . . . . . . . . . .
General Checkout . . . . . . . . . . . . . . . . .
Memory Checkout . . . . . . . . . . . . . . .
Keyboard/Auxiliary Input Device Checkout . . . .
TrackPoint III Checkout. . . . . . . . . . . .
Audio Card Checkout. . . . . . . . . . . . .
Diskette Drive Checkout. . . . . . . . . . . .
Power Systems Checkout. . . . . . . . . . .
Power Management Features. . . . . . . . .
Setup Utility . . . . . . . . . . . . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . . .
Beep Symptoms . . . . . . . . . . . . . . . .
No Beep Symptoms . . . . . . . . . . . . . .
Error Messages . . . . . . . . . . . . . . . .
LCD Related Symptoms. . . . . . . . . . . .
Keyboard/TrackPoint Related Symptoms. . . .
Indicator Related Symptoms. . . . . . . . . .
Power Related Symptoms. . . . . . . . . . .
Audio Related Symptoms. . . . . . . . . . .
Peripheral Device Related Symptoms . . . . . .
Other Symptoms . . . . . . . . . . . . . . . .
Intermittent Problems. . . . . . . . . . . . .
Undetermined Problems. . . . . . . . . . . .
Related Service Procedures . . . . . . . . . . . .
System Status Indicators . . . . . . . . . . . .
I/O Status Indicators . . . . . . . . . . . . . .
How to Run Diagnostics. . . . . . . . . . . .
Diagnostic Test Programs . . . . . . . . . . . . .
Error Messages . . . . . . . . . . . . . . . .
Return Codes . . . . . . . . . . . . . . . . .
Using the Diagnostics Test Programs. . . . . . .
Viewing the Test Groups . . . . . . . . . . . .
Stopping the Tests . . . . . . . . . . . . . . .
System Key Combinations . . . . . . . . . . .
External Keyboard Key Combinations . . . . . .
Product Overview (365C, CD, CS, CSD) . . . . . .
Product Overview (365E, ED) . . . . . . . . . . .
FRU Removals and Replacements . . . . . . . . .
1010 Rear Connector Door
. . . . . . . . . .
1015 Foot. . . . . . . . . . . . . . . . . .
1020 Battery Pack
. . . . . . . . . . . . . .
1030 SO-DIMM/Memory Board. . . . . . . .
1040 Hard Disk Drive . . . . . . . . . . . . .
1050 Keyboard Unit . . . . . . . . . . . . . .
1055 Mylar Cover . . . . . . . . . . . . . . .
1060 Processor Card
. . . . . . . . . . . . .
1065 LCD Inverter Card . . . . . . . . . . . .
1068 LCD Panel. . . . . . . . . . . . . . .
1070 LCD Assembly. . . . . . . . . . . . .
1080 Sound Card . . . . . . . . . . . . . . .

27
28
30
31
33
34
34
34
35
38
40
41
41
43
44
46
47
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47
48
48
48
48
49
50
50
50
51
52
53
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54
55
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57
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59
60
61
61
62
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 Copyright IBM Corp. 199725

1090 CD-ROM Drive. . . . . . . . . . . . .
1100 Diskette Drive . . . . . . . . . . . . . .
1110 DC/DC Card
. . . . . . . . . . . . . .
1120 Keyboard Card
. . . . . . . . . . . . .
1130 LED/IR Board . . . . . . . . . . . . . .
1140 System Board . . . . . . . . . . . . . .
1150 PCMCIA Assembly. . . . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . . .
System Front View . . . . . . . . . . . . . . .
System Rear View . . . . . . . . . . . . . . .
System Board Switch Settings. . . . . . . . .
Memory Board Switch Settings . . . . . . . . .
Parts Listing 365C, CD, CS, CSD (2625). . . . .
Parts Listing 365E, ED (2625) . . . . . . . . . . .

26

IBM Mobile Systems - ThinkPad HMM Volume 3

73
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Read This First
This hardware maintenance manual contains information
for the IBM ThinkPad 365 computer.
Be extremely careful during write operations suchas copying, saving, or formatting. Drives in thecomputer that you are servicing might have beenrearranged or the drive startup sequence might havebeen altered. If you select an incorrect drive, data or
programs can be written over.
Use only the correct FRUs. When you replace a
FRU, make sure the model of the machine and FRU
part number are correct by referring to the parts
listing.
FRUs should not be replaced because of a single,
un-reproducible failure. Single failures can occur
from a variety of reasons that have nothing to do witha hardware defect such as electrostatic discharge orsoftware errors. FRU replacement should only beconsidered when a recurring problem exists.

The servicer must include the following in the partsexchange form or part return form that is attached to thereturned FRU.
1.
2.
3.
4.
5.
6.
7.
8.
9.

Name and phone number of servicer.
Date of service.
Date when part failed.
Date of purchase.
Failure symptoms, error codes appearing on
display, and beep symptoms.
Procedure index and page number in which
failing FRU was detected.
Failing FRU name and part number.
Machine type, model number, and serial number.
Customer's name and address.

ThinkPad 365 (2625)

27

What to Do First
Before servicing the computer, determine whether or not
the damage applies to the warranty by referring to thefollowing:
Warranty Note
During the warranty period, the customer may be
responsible for repair costs if the damage was causedby misuse, accident, modification, unsuitable physicalor operating environment, or improper maintenance by
the customer.
The following list provides some common items that are
not covered under warranty and some symptoms that
could indicate that the system was subjected to stresses
beyond normal use.
Warranty Coverage Notes
The following is not covered under warranty:















LCD panel cracked from being dropped orapplying too much force.
Scratched (cosmetic) parts.
Cracked or broken plastic parts, broken latches,broken pins or connectors caused by excessive
force.
Damage caused by liquid spilled onto the system.
Damage caused by improperly inserting a
PCMCIA card or installation of an incompatible
card.
Damage due to foreign material in the FDD or
FDD bay.
Damage to the diskette drive caused by pressing
the diskette drive cover or inserting diskettes withmultiple labels.
Diskette eject button was bent or damaged.
Damage to the CD-ROM drive caused byexcessive force shocked or dropped.
Fuse blown by attaching non-supported devices.
Computer or hard disk could not be usedbecause the password was forgotten.

If the following symptoms are present, they could
indicate the damage was caused by non-warranted
activity:




28

Missing parts can be a symptom of unauthorized
service or modification.
HDD spindles can become noisy if subjected toexcessive force or if dropped.
Errors can be caused by exposure to strong
magnetic fields.

IBM Mobile Systems - ThinkPad HMM Volume 3

How to Use Error Messages:

Use the error
codes or messages displayed on the screen to diagnose
failures. If more than one error code is displayed, begin
the diagnosis with the first error code. The cause of thefirst error code can result in false error codes being
displayed. If no error code is displayed, see if the error
symptom is listed in the “Symptom-to-FRU Index” onpage 41.

How to Diagnose Multiple FRUs: When theadapter or device has more than one FRU, the error code
could be caused by either FRU. Before replacing
multiple-FRUs, try removing or exchanging each FRU, one
by one in the designated sequence, to see if the symptoms
change.
Passwords:

The Passwords are security features thatare used to protect the system and the hard disk data fromunauthorized access. There are two types of passwords:User Password
Supervisor Password

How to Disable the Passwords
Important
This information is not available in this online HMM
format. See your IBM Servicer or IBM Authorized
Dealer for this procedure.

ThinkPad 365 (2625)

29

General Checkout
Use the following procedure as a guide for computer
problems.
Note: The diagnostic tests are intended to test only IBM
products. Non-IBM products, prototype cards, or modified
options can give false errors and invalid system responses.
1. Obtain the failing symptoms in as much detail as
possible. Pay close attention to the error messages
on the screen.
2. Verify the symptoms by attempting to recreate thefailure by running the diagnostic test or by repeating
the same operation.
Note: To run the diagnostics, refer to “How to Run
Diagnostics” on page 51.
3. Use the following table to locate the description thatbest matches the symptom, then go to the page
indicated.
Symptom

Go to

AC Adapter“Checking the AC Adapter”
on page 36.

Audio Card

“Audio Card Checkout” onpage 34.

Battery Pack

“Checking the Battery Pack”
on page 37.

Configuration is not thesame as the installed
devices.

“How to Run Diagnostics”
on page 51.

Diskette Drive“Diskette Drive Checkout”
on page 34.

Keyboard/Auxiliary Device(Mouse/Pointing Device)“Keyboard/Auxiliary Input
Device Checkout” onpage 33.

Memory related problems“Memory Checkout” onpage 31.

Operational Charging“Checking Operational
Charging” on page 37.

Other symptoms.
(Such as LCD problems.)“Symptom-to-FRU Index” onpage 41, and then use
other miscellaneous
symptoms tables.

Port Replicator“Port Replicator Power
Overload” on page 40.

POST does not complete.
No beeps/error code areindicated.

“Symptom-to-FRU Index” onpage 41, and then use the
No Beep Symptoms table.

POST beeps, but no error
codes are displayed.

“Symptom-to-FRU Index” onpage 41, and then use theBeep Symptoms table.

30

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom

Go to

POST detected an error anddisplayed numeric error
codes.

“Symptom-to-FRU Index” onpage 41, and then use the
Numeric Error Codes table.

Power failure.
(The power indicator does
not go on or stay on.)“Power Systems Checkout”
on page 35.

Symptoms cannot berecreated.
(Intermittent problems.)

Use the customer reported
symptoms and go to“Symptom-to-FRU Index” onpage 41.

TrackPoint III will not work

“TrackPoint III Checkout” onpage 34.

Memory Checkout
Depending on the model, the memory size that is available
for customer use appears differently. See the following
table for the available memory size of each card.
SystemBoard

8MB
MemoryBoard

Optional
SO-DIMM

Extended
MemorySwitchSetting

640KB

8MB

0

7168KB

1,2,3,4OFF

411264KB

1,2,3,4OFF

1623552KB

2 ON
1,3,4
OFF

0

15360KB

1,2,3,4,OFF

419456KB

1,2,3,4OFF

1631744KB

2 ON
1,3,4
OFF

640KB

16MB

Note: Refer to “Memory Board Switch Settings” on page 83
for Memory Board Switch location.

Memory errors might stop system operations, show error
messages on the screen, or hang the system. The
computer detects memory parity errors but does notcorrect them.
Use the following procedure to isolate memory problems.
Memory Error Notes


Ignore any references to parity errors.
Remove any installed PCMCIA memory cards.

ThinkPad 365 (2625)

311. Make sure that any memory options are fully installed
into their connectors. A loose connection can cause
an error.
2. Run the diagnostics. See “How to Run Diagnostics”
on page 51.
3. If memory problems occur intermittently, use the loop
option to repeat the test.
4. FRUs should not be replaced because of a single,
un-reproducible failure. Single failures can occur froma variety of reasons that have nothing to do with ahardware defect such as electrostatic discharge orsoftware errors. FRU replacement should only beconsidered when a recurring problems exits.

Flash Memory: BIOS, system setup programs, andsome diagnostic utilities are stored in flash memory.

Flash Memory Update: A flash memory update isrequired for new versions.
When Updating Flash Memory
During the flash update do not:






Power-off the computer.
Disconnect the AC Adapter.
Remove the battery.
Lift the keyboard.
Press any key.
Attention

On certain systems, updating flash memory can reset
all customer’s configuration settings to the default
values. The following steps bypass the CONFIG.SYS
and AUTOEXEC.BAT files, so the customer’s
configuration setting are not reset to the default
values.
To update the flash memory:
1.
2.
3.
4.
5.

Power-off the computer.
Install the battery pack and connect the AC Adapter.
Insert the update diskette in drive A.
Power-on the computer.
When the message “Starting PC DOS” appears,
press F5 to bypass the CONFIG.SYS and
AUTOEXEC.BAT.
6. At the prompt, select Country Language then press
Enter.
7. Follow the instructions on the screen.

32

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard/Auxiliary Input Device
Checkout
Disconnect the external keyboard and mouse, then try theinternal keyboard. If the internal keyboard works correctly,
replace the external keyboard or mouse.
If the internal keyboard does not work correctly or an
unexpected character appears, make sure that the three
flexible cables extending from the keyboard are correctlyseated in the connectors on the keyboard card.
If the keyboard cables are seated correctly, run the
Keyboard Test using the IBM ThinkPad 365 Advanced
Diagnostics Diskette.
Attention
To use the IBM ThinkPad 365 Advanced Diagnostics
Diskette, you must have at least 500KB of freememory. Be sure to read the “README.PO” file on
the IBM ThinkPad 365 Advanced Diagnostics Diskette
before using the following instructions.
1. Power-off the computer.
2. Insert the IBM ThinkPad 365 Advanced Diagnostics
Diskette into drive A.
3. Power-on the computer.
4. Follow the instructions on the screen and proceed to
the Main Menu. Allow two to four minutes for the
diagnostic programs to load.
5. At the Main Menu, select Diagnostics.
6. At the Diagnostics Menu, select Module Tests.
7. At the Module Tests Menu, select Keyboard.
8. Press Enter to run the keyboard tests.
9. Do not press any key until prompted, then follow the
instructions on the screen.
10. When the tests are completed, press Esc twice toreturn to the main menu.
11. Select Exit.
If the tests detect a keyboard problem, do the following
one at a time to correct the problem. Do not replace a
non-defective FRU.


Reseat the three cables.
Replace the keyboard.
Replace the keyboard card.
Replace the system board.

The following auxiliary input devices are supported for thiscomputer.
Space-saver keyboard
Mouse (PS/2 compatible)

If any of the above devices do not work, reseat the cableconnector and repeat the failing operation. If the problem
ThinkPad 365 (2625)

33

does not occur again, recheck the connector. If the
problem remains, replace the device, and then the systemboard.

TrackPoint III Checkout
The TrackPoint automatically compensates to adjust the
pointer sensor. During this process, the pointer moves on
the screen automatically for a short time. This self-acting
pointer movement can occur when a slight, steadypressure is applied to the TrackPoint pointer while thecomputer is powered on or while the system is running, or
re-adjustment is required because the temperature has
exceeded its normal temperature range. This symptom
does not indicate a hardware problem. No service actions
are necessary if the pointer movement stops in a shortperiod of time.
If either the pointing stick or the click button will not work,
do the following actions one at a time to correct the
problem. Do not replace a non-defective FRU.


Reseat the three keyboard cables.
Replace the keyboard.
Replace the keyboard card.
Replace the system board.

Audio Card Checkout
Do the following to run the audio tests.








Go to a DOS full screen, press Ctrl+Alt+F11 toaccess the setup utility.
Note: The setup screen can only be accessed at afull-screen DOS prompt.
Use the arrow keys to select Audio, then use thespace bar to toggle the audio selection to enabled(IRQ 7).
Set the volume control to mid range.
Press Esc then F4 to save and reboot.
Listen for the sounds.

If the audio card does not produces any sound during
reboot, replace the Audio card. If the problem remains,replace the system board.

Diskette Drive Checkout
Important
The ThinkPad 365 does not support both an internaland external drive simultaneously.
Do the following to isolate the problem to a controller,
drive, or diskette. A scratch, write enabled, non-defective
2HD diskette is required. Make sure that the diskette does
not have more than one label attached to it. Multiple
labels can cause damage to the drive or can cause thedrive to fail.

34

IBM Mobile Systems - ThinkPad HMM Volume 3

Use the following information to test the diskette drive.
Attention
To use the IBM ThinkPad 365 Advanced Diagnostics
Diskette, you must have at least 500KB of freememory. Be sure to read the “README.PO” file on
the IBM ThinkPad 365 Advanced Diagnostics Diskette
before using the following instructions.
1. Power-off the computer.
2. Insert the IBM ThinkPad 365 Advanced Diagnostics
Diskette into drive A.
3. Power-on the computer.
4. Follow the instructions on the screen and proceed to
the Main Menu. Allow two to four minutes for the
diagnostic programs to load.
5. At the Main Menu, select Diagnostics.
6. At the Diagnostics Menu, select Module Tests.
7. At the Module Tests Menu, select Floppy Disks.
8. Press Enter to run the Floppy Disks tests.
9. Do not press any key until prompted, then follow the
instructions on the screen.
10. When the tests are completed, press Esc twice toreturn to the main menu.
11. Select Exit.
If the drive is attached through a Port Replicator and thetest detects errors, move the drive to the computer's
diskette drive connector directly, and test it again.


If an error occurs replace the diskette drive.



If no errors occur, the drive is not defective. Go to“Port Replicator Checkout” on page 597 to isolate thereplicator problem.

If the drive is attached through a Diskette Drive Attachment
Unit, replace the unit.

Power Systems Checkout
To verify the symptom of the problem:
1. Remove the port replicator (if attached), reconnect the
AC Adapter, and replace the battery pack in thecomputer.
If the computer power problem remains, do the following:
2. Remove the battery pack, external diskette drive, andhard disk drive.
3. Connect the AC Adapter and check that power is
supplied.
4. Connect one at a time, the external diskette drive,and hard disk drive and check that power is supplied
from each power source.
5. Disconnect the AC Adapter, remove the hard disk anddiskette drive, and install the charged battery pack;then check that power is supplied by battery pack.
ThinkPad 365 (2625)

35

6. Remove the memory card and PCMCIA cards andcheck the power supply. Reinstall one at a time andcheck the power supply.
7. Disconnect the AC Adapter. Remove the CD-ROM
and Audio Card. Reinstall one at a time, connect the
AC Adapter and check that power is supplied.
If you suspect a power problem, see the appropriate power
supply check listed below.
“Checking the AC Adapter.”“Checking Operational Charging” on page 37.
“Checking the Battery Pack” on page 37.
“Port Replicator Power Overload” on page 40.

Checking the AC Adapter:

You are here
because the computer fails only when the AC Adapter is
used.





If the power problem occurs only when the port
replicator is used, replace the replicator.
If the power-on indicator does not turn on, check thepower cord of the AC Adapter for correct continuity
and installation.
If the operational charge does not work, go to“Checking Operational Charging” on page 37.

Use the following procedure to check the adapter.
1. Unplug the AC Adapter cable from the computer andmeasure the output voltage at the plug of the AC
Adapter cable. See the following figure.

Pin

Voltage (V dc)

1+10.0 to +16.0

2

GroundIf the voltage is correct:– Replace the DC/DC Card.
– If the problem remains, replace the systemboard.
 If the problem still is not corrected, go to“Undetermined Problems” on page 49.
 If the voltage is not correct, go to the next step.
2. Unplug the AC Adapter cable from the ac power
outlet and wait five minutes or longer to allow theover voltage protection circuit to be fully discharged
and initialized.
3. Plug the AC Adapter cable into the ac power outlet.
36

IBM Mobile Systems - ThinkPad HMM Volume 3

4. Measure the output voltage of the AC Adapter.
5. If the voltage is still not correct, replace the AC
Adapter.
Note: An audible noise from the AC Adapter does notalways indicate a defective adapter.

Checking Operational Charging: To check
operational charging, use a discharged battery pack or abattery pack that shows an amber battery status indicatorwhen it is installed in the computer.
Perform operational charging. If the battery statusindicator turns orange and the battery charging indicatorturns green within two minutes, replace the AC Adapter.

Checking the Battery Pack:

Battery charging will
not start until the Fuel-Gauge shows that less than 90% of
the total power remains; with this condition the battery
pack will charge to 100% of its capacity. This protects thebattery pack from being over-charged or having ashortened life.
Before you perform the following procedure, be sure you
have the correct battery pack for this model.
1. Power-off the computer.
2. Remove the battery pack and measure the voltage
between battery terminals 2 (+) and 6 (−). See thefollowing figure.

3. If the voltage is less than +7.2 V dc, the battery packhas been discharged or is defective. Recharge thebattery. If the recharging does not work, go to Step 5
on page 38 to check the charging circuit.
If the voltage is still less than +7.2 V dc after therecharging, replace the battery.
4. If the voltage is more than +7.2 V dc, measure theresistance between battery terminals 4 and 6. The
resistance must be 4K ohms to 30K ohms.
If the resistance is not correct, replace the battery
pack.
If the resistance is correct, replace the DC/DC card.

ThinkPad 365 (2625)

37

5. To check the charging circuit, do the following. Plugin the AC Adapter with the battery pack removed,
then power-on the computer.
6. Measure the charging voltage between DC/DC
terminals 2 (+) and 6 (−).
7. If the voltage is less then +9.0 V dc, replace the
DC/DC card. If the voltage is more than +9.0 V dc,
the charging circuit is working correctly, replace thebattery pack.

Power Management Features
Five power management modes are provided by thecomputer to save power consumption and prolong battery
power.

Standby Mode:

When in standby mode the following

occurs:The LCD backlight turns off.
The hard disk motor stops.
The CPU clock is set to the lowest speed.

Events that cause entering of standby mode:Standby requested by the Fn key (Fn+F3).
No activity under auto-standby enabled by thefeature utility.

Events that cause exiting or resuming of standby mode:(Resume) Any key operation.
Ring wakeup if enabled.

Suspend Mode: When in suspend mode, thefollowing, in addition to the four actions of standby mode,
occur:


The Audio is powered-off
The CD-ROM is powered off.
The LCD power is powered-off.
The hard disk is powered-off.
The CPU is stopped.

When the computer is powered with AC power and is usedwith one of the following IBM PC cards, the computer does
not enter suspend or hibernate mode by either the LCD
suspend switch or power-management timeout; the PC
card and application program remain active.






3270 Emulation Credit Card Adapter
5250 Emulation Credit Card Adapter
Token-Ring 16/4 Credit Card Adapter
Credit Card Adapter for Ethernet
IBM Modem

In the following condition, the computer cannot enter thesuspend mode.
While the communication link is running.

38

IBM Mobile Systems - ThinkPad HMM Volume 3Active interrupts (CD-ROM activity, etc.)

Events that cause entering of suspend mode:






Suspend mode is requested by the Fn key (Fn+F4).
The LCD is closed.
The specified time has elapsed from the lastoperation with the keyboard, mouse, hard disk drive,
parallel connector, diskette drive, or the AC Adapter isplugged in. The time is specified by Suspend Timerin the setup program (if enabled).
If the battery condition is low the system enters the
Safe Suspend mode and the configuration/setup
information is saved. If the battery gets to critical thebattery power indicator blinks (amber) and the system
goes into the Hibernation mode.

Events that cause exiting or resuming of suspend mode:






(Resume) The LCD is opened.
(Resume) Real time clock alarm signaled.
(Resume) Ring indicator (RI) signaled by serial or
PCMCIA device.
(Resume) Any keyboard key is pressed.
(Exit) Timer conditions are satisfied to enter
hibernation mode.

Hibernation Mode:

When in hibernation mode, thefollowing occurs:The system status, RAM, VRAM, and setup data are
stored on the hard disk.
The system is powered-off.

When the computer is powered with AC power and is usedwith one of the following IBM PC cards, the computer does
not enter suspend or hibernate mode by either the LCD
suspend switch or power-management timeout; the PC
card and application program remain active.







PCMCIA Data/FAX ModemHigh Speed PCMCIA Data/FAX Modem
3270 Emulation Credit Card Adapter
5250 Emulation Credit Card Adapter
Token-Ring 16/4 Credit Card Adapter
Credit Card Adapter for Ethernet

ThinkPad 365 (2625)

39

Events that cause entering of hibernation mode:The hibernation mode is requested by the Fn key(Fn+F12).
Timer conditions are satisfied in suspend mode.
Critical low battery condition. The system first goes
into safe suspend mode, then when the battery
reaches critical the system goes into the hibernation
mode.

Event that causes exiting of hibernation mode.
The power-on switch is operated.

When power is turned on, the hibernation history of theboot record on the hard disk is recognized and systemstatus is restored from the hard disk to resume operation.

Doze Mode:In the Doze mode, the system slows
down the central processing unit and the system uses lesspower. Enable the doze mode in the setup program.
Exiting the doze mode is instantaneous by pressing any
keyboard key.

Safe Suspend:

Saves the computer state, thenenters the suspend mode.

Port Replicator Power Overload: If power shut
downs occur intermittently when using a port replicator,
suspect an over-current problem. Some devices use more
power; if the maximum usage of each device occurs
simultaneously, the total current will exceed the limit,
thereby causing a power shut down. Isolate this problem
by removing one of the devices, and use the computerunder the same condition to see whether a power shut
down occurs. Do this procedure for all devices, thendetermine the cause.

Setup Utility
Note
The Setup Utility is ROM-resident and can only be
started at a full-screen DOS prompt.
Do the following to run the Setup Utility.
1. Go to a DOS full screen.
2. Press Ctrl+Alt+F11.
3. Follow the instructions on the screen.
Note
When exiting the Setup Utility using Fn+6, press
Ctrl+Alt together after returning to the full-screen
DOS. This ensure the keyboard controller is in theproper reset state.

40

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom-to-FRU Index
The Symptom-to-FRU Index lists error symptoms andpossible causes. The most likely cause is listed first.
Always begin with “General Checkout” on page 30. This
index can also be used to help you decide which FRUs tohave available when servicing a computer.
If you are unable to correct the problem using this index,
go to “Undetermined Problems” on page 49.
Notes




If you have both an error message and anincorrect audio response, diagnose the error
message first.
Check all power supply voltages before you
replace the system board. (See “Power Systems
Checkout” on page 35.)

Beep Symptoms
Beeps symptoms are short tones or a series of short tones
separated by pauses (intervals without sound). See thefollowing examples.
Beep Symptom

FRU/Action

1-1-3
CMOS write/read test in
progress or failure.

1. Run Setup
2. System Board

1-1-4
ROM BIOS check error.

1. System Board

1-2-1
Programmable interval timer
0 test in progress or failure.

1. System Board

1-2-2
DMA channel 0 address andcount register test in
progress or failure.

1. System Board

1-2-3
DMA page register
write/read in progress or
failure.

1. System Board

1-3-1
RAM refresh verification testin progress or failure.

1. System Board

1-3-3
First 64K RAM chip or dataline failure, multi-bit.

1. RAM Memory Board
2. System Board

1-4-2
Parity failure first 64K RAM.

1. System Board

1-4-3
Fail-safe timer failure (onlyused by EISA BIOS).

1. System Board

ThinkPad 365 (2625)

41

Beep Symptom

FRU/Action

1-4-4
Software NMI port failure(only used by EISA BIOS).

1. System Board

2-1-1, 2-1-2, 2-1-3
2-1-4, 2-2-1, 2-2-2
2-2-3, 2-2-4, 2-3-1
2-3-2, 2-3-4, 2-4-1
2-4-2, 2-4-3, 2-4-4First 64K RAM chip or dataline failure on bit x.

1. RAM Memory Board
2. System Board

3-1-2
Master DMA register test in
progress or failure.

1. System Board

3-1-3
Master interrupt mask
register test in progress or
failure.

1. System Board

3-1-4
Slave interrupt mask
register test in progress or
failure.

1. System Board

3-2-4
Keyboard controller test in
progress or failure.

1. System Board
2. Keyboard
3. Keyboard Card

3-3-1
Slave DMA register test in
progress or failure.

1. System Board

3-3-4
Screen memory test in
progress or failure.

1. System Board

3-4-1
Screen initialization inprogress.

1. System Board

3-4-2
Screen retrace test in
progress.

1. System Board

4-2-1
Timer-tick interrupt test in
progress or failure.

1. System Board

4-2-2
Shutdown test in progressor failure.

1. System Board
2. Processor Card

4-2-3
Gate A20 failure.

1. System Board

4-2-4
Unexpected interrupt inprotected mode.

1. System Board
2. Processor Card

4-3-1
RAM test of memory above
64K in progress or failure.

1. RAM Memory Board
2. SO DIMM
3. System Board

42

IBM Mobile Systems - ThinkPad HMM Volume 3

Beep Symptom

FRU/Action

4-3-2
Programmable interval timer
channel 2 test in progressor failure.

1. System Board

4-3-4
Real-time clock test in
progress or failure.

1. System Board

4-4-1
Serial port test in progressor failure.

1. System Board

4-4-2
Parallel port test in progressor failure.

1. System Board

4-4-3
Math coprocessor test in
progress or failure.

1. Processor Card
2. System Board

No Beep Symptoms
Symptom/Error

FRU/Action

No beep during POST but
computer works correctly.

1. System Board
2. Audio card

No beep during POST and
no display.

1. See “Undetermined
Problems” onpage 49.
2. System Board
3. Audio card
4. Memory
5. See “Power Systems
Checkout” on page 35.

ThinkPad 365 (2625)

43

Error Messages
Error Message/Symptom

FRU/Action

Bus Timeout NMI,
Slot n. Type (S)hut off NMI,
(R)eboot, other keys tocontinue.

1. System Board

Configuration for slot n.

1. Run Setup Utility.

Diskette drive failure

1. See “Diskette Drive
Checkout” onpage 34.

Diskette drive x failure
where x=0 or x=1.

1. See “Diskette Drive
Checkout” onpage 34.

Diskette read failure press F1 to retry boot (ormay also say F2 for Setup
Utility).

1. Replace diskette witha bootable disketteand retry.

Gate A20 failure

1. System Board

Hard disk configurationerror

1. Correct the hard disk
configuration.

Hard disk controller
failure1. System Board

Hard Disk failure

1. Hard Disk

Hard disk failure - press
F1 to retry boot (or may
also say press F2 forSetup Utility).

1. Check drive selection
in setup.
2. Hard Disk.

F2 to enter ROM-based
SETUP

1. Run Setup Utility.
2. Verify Configuration.

ID information mismatchfor slot n

1. Run Setup Utility.

Invalid configuration
information.

1. Run Setup Utility.

Internal cache test failed cache is disabled.

1. Processor Card
2. System Board

Keyboard clock line
failure.

1. Keyboard cable andKeyboard
connection.
2. System Board

Keyboard controller
failure.

1. System Board

Keyboard data line failure.

1. System Board

Keyboard is locked.

1. Unlock the Keyboard

Keyboard stuck key
failure.

1. Locate and fix.
2. Keyboard cable andKeyboard connection.
3. System Board

Memory failure at
hex-value, read hex-value,
expecting hex-value.

1. RAM Memory Board

44

IBM Mobile Systems - ThinkPad HMM Volume 3Error Message/Symptom

FRU/Action

No boot device available press F1 to reboot orpress F2 for Setup Utility.

1. Diskette
2. Diskette Drive
3. Hard Disk

No boot sector on hard
disk.
Press F1 to reboot or F2
for Setup Utility.

1. Format the C drive.

No fail safe timer NMI

1. System Board

No software port NMI

1. System Board

No timer tick interrupt

1. System Board

Not a boot diskette - press
F1 to reboot or F2 forSetup Utility

1. Replace diskette witha bootable diskette.

Pointer device failure

1. Check cableconnections
2. Keyboard (TrackPoint)
3. External Mouse

Real time clock failure

1. Run Setup Utility

Shutdown failure

1. Power-off, Power-on,
Retry
2. System Board

Time of day not set - run
SETUP program

1. Run Setup Utility

Timer 2 failure

1. System Board

Unexpected HW interrupt
at address Type (R)eboot,other keys to continue.
Hardware problem. Not
displayed if the extended
interrupt handler is notenabled.

1. System Board

Unexpected interrupt inprotected mode

1. System Board

Unexpected SW interrupt
at address Type (R)eboot,other keys to continue.
Error(s) in software
program. Not displayed if
the extended interrupt
handler is not enabled.

1. System Board

Unexpected type 02
interrupt at xxxxxh Type(S)hut off NMI, (R)eboot,other keys to continue.
Parity error occurred. Cause
undetermined.

1. System Board

Unresolved BUS Timeout
NMI, Type (S)hut off NMI,
(R)eboot, other keys tocontinue. Parity error
occurred. Cause
undetermined.

1. System Board
2. Processor Card

ThinkPad 365 (2625)

45

Error Message/Symptom

FRU/Action

Unresolved memory parity
error
Type (S)hut off NMI,
(R)eboot, other keys tocontinue. Parity error
occurred. Cause
undetermined.

1. System Board
2. SO-DIMM
3. Optional Memory(8MB or 16MB Board)

xxxxxh Option ROM
checksum failure where
xxxxxh is the starting
address of the option
ROM

1. Power-off, Power-on,
Retry
2. Peripheral CardLCD Related Symptoms
Important
The TFT LCD of the notebook computers contain over
921 000 thin film transistors (TFTs). A small numberof missing, discolored or lighted dots (on all the time)
is characteristic of TFT LCD technology. Excessive
pixel problems can cause viewing concerns. The LCD
should be replaced if the number of missing or
discolored, or lighted dots in any colored backgroundis 21 or more.

Symptom/Error

LCD backlight notworking, orLCD too dark, orLCD brightness cannot
be adjusted, orLCD contrast cannot
be adjusted.



LCD screen
unreadable, orCharacters missing
pels, or
Screen abnormal, orWrong color displayed.



FRU/Action
1. Reseat the LCD
connectors.
2. Inverter Card
3. LCD Assembly
4. Keyboard Card
5. DC/DC Card

1. See the preceding
important note.
2. Reseat all LCD
connectors.
3. LCD Assembly
4. System Board
5. Keyboard CardLCD has extra horizontal orvertical lines displayed.

1. LCD Assembly

No beep, power-on indicatoron, and a blank LCD during
POST.

1. System Board
2. DC/DC Card
3. Processor Card46

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard/TrackPoint Related
Symptoms
Symptom/Error

FRU/Action

Keyboard (one or morekeys) does not work.

1. Reseat the threekeyboard cables.
2. Keyboard
3. Keyboard Card
4. System Board

TrackPoint does not work.

1. Go to “TrackPoint III
Checkout” onpage 34.
2. Keyboard
3. Keyboard Card
4. System Board

Pointer moves automaticallyor does not work correctly.

1. See “TrackPoint III
Checkout” onpage 34.

Indicator Related Symptoms
Symptom/Error

FRU/Action

Indicator incorrectly remains
off or on, but system runs
correctly.

1. Reseat the statusindicator cable.
2. Status Indicator
3. System Board

Battery power statusindicator blinks from green,
yellow, to orange.

1. Check that a correct
battery is installed.
2. Battery Pack
3. DC/DC Card
4. System Board

Power Related Symptoms
Symptom/Error

FRU/Action

Power shut down during
operation.

1. Go to “Power
Systems Checkout”
on page 35.
2. Battery Pack
3. Remove the battery
pack and let it cool for
two hours.
4. DC/DC Card
5. Power sources

The system will not
power-off.

1.
2.
3.
4.

Remove AC Adapter.
Remove the battery.
Wait 10 seconds.
Reconnect the AC
Adapter and try to
reproduce the error.
5. If the error remains,replace the System
Board.

ThinkPad 365 (2625)

47

Audio Related Symptoms
The following are the audio input sources:






Line InMic InSystem board
CD-ROM
Audio card

Note: Use either a data or music CD to check the audio
function. If the audio fails see “Audio Card Checkout” onpage 34.

Peripheral Device Related Symptoms
Symptom/Error

FRU/Action

External display does notwork correctly.

1. See “External Display
Self-Test” onpage 592.

Printer problems.

1.
2.
3.
4.

Serial or parallel port device
problems.

1. Device
2. Device Cable
3. System Board

Run Printer Self-test.
System Board
Parallel Port Device
Cable

Other Symptoms
Symptom/Error

FRU/Action

Errors occur only when Port
Replicator is used.

1. See “Port Replicator
Checkout” onpage 597.

PCMCIA slot pin isdamaged.

1. PCMCIA Socket
2. System Board

Note: If you cannot find a symptom or error in this list
and the problem remains, see “Undetermined Problems”
on page 49.

Intermittent Problems
Intermittent system hang problems can be caused by avariety of reasons that have nothing to do with a hardware
defect such as: cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should only beconsidered when a recurring problems exits.
When analyzing the intermittent problem, do the following:
1. Run the diagnostic test for the system board in loop
mode at least 10 times.
2. If any error is detected, replace the FRU indicated.
Rerun the test to verify that no more errors exist.

48

IBM Mobile Systems - ThinkPad HMM Volume 3

Undetermined Problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices areincorrect, a short circuit is suspected, or the system is
inoperative. Follow the procedures below to isolate thefailing FRU (do not isolate non-defective FRUs).
Verify that all attached devices are supported by thecomputers.
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 35.)
1. Power-off the computer.
2. Check the cables, wires, and connectors for shortcircuits and open circuits. Visually check them fordamage. If any problems are found, replace the
FRU.
3. Remove or disconnect all of the following devices.
a. Non-IBM devices
b. Devices attached to external connectors
c. Printer, mouse, and other external devices
d. Battery packe. Hard disk drive
f. Diskette drive or the device attached to thediskette drive connector
g. DIMM cardh. CD-ROM
i. Sound card
j. Port replicatork. Keyboard
l. Keyboard card

4.
5.
6.

7.

Note: Remember that removing the hard disk
drive, or any adapter or device, might cause
configuration errors. Ignore error code 174.
Power-on the computer.
Determine if the problem has changed.
If the problem does not occur again, reconnect theremoved devices one at a time until you find thefailing FRU.
If the problem remains, replace the following FRUs
one at a time. Do not replace a non-defective FRU.
 DC/DC card
 System board
 LCD assembly Processor card

ThinkPad 365 (2625)

49

Related Service ProceduresThis section provides information about the following:“System Status Indicators”“I/O Status Indicators”“How to Run Diagnostics” on page 51“System Key Combinations” on page 57

System Status Indicators
The system status indicators show the current computer
status in different colors (amber and green).
SymbolColor

Meaning

Blinkinggreen

Speaker sounds.

Green

Battery fully charged.

Amber

1 minute or less of battery
power left.

Green

Battery charging.

Off

Battery charged. (Battery
must be installed for proper
reading.)Amber

PC card in-use.

Amber

Diskette drive in-use.

Amber

Hard disk drive in-use.

Green

Keys in Num Lock mode.

Green

Keys in Caps Lock mode.

Green

Keys in Scroll Lock mode.

Green

Computer in suspend mode.

Green

Computer powered-on.

I/O Status Indicators
The I/O status indicators on the front panel of the CD-ROM
drive or the FDD drive indicate the current status.
I/O status

50

Amber

CD-ROM in use.

Green

Disk Drive in use.

IBM Mobile Systems - ThinkPad HMM Volume 3

How to Run Diagnostics
The QAPlus/PRO diagnostic program, developed by
DiagSoft for IBM, is the primary method of testing thecomputer. It is unique to the ThinkPad 365 and will not
run on other models. You can use it to test the IBMcomponents of the system and some external devices.
The amount of time required to test all components
depends on the number of components. The more
optional adapters and devices you have attached to yoursystem, the longer the testing takes.
Important
Before loading the diagnostics program:
1.
2.
3.
4.

Go to a DOS full screen.
Press Ctrl+Alt+F11 to go to the setup screen.
Verify all peripherals devices are enabled.
Page Down to the second page and verify all
peripherals are enabled.

The diagnostics program is intended to test only IBM
products. Non-IBM products, prototype cards, or modified
options can give false errors and invalid system responses.

Loading the IBM ThinkPad 365 Advanced
Diagnostics Diskette
Attention
The Advanced Diagnostics Diskette Version 1.0
supports all ThinkPad 365C, CD, CS, CSD, E, and ED
models. However, this diskette refers to allprocessors as DX4-100. If the diagnostics detect a
processor error, refer to the “Parts Listing” to correctly
identify the installed processor.
To use the IBM ThinkPad 365 Advanced Diagnostics
Diskette, you must have at least 500KB of freememory. Also, be sure to read the “README.PO” fileon the Diagnostics Diskette.
1. Power-off the computer.
2. Insert the IBM ThinkPad 365 Advanced Diagnostics
Diskette into drive A.
3. Power-on the computer.
4. Follow the instructions on the screen and proceed to
the Main Menu. Allow two to four minutes for the
diagnostic programs to load.
5. At the Main Menu, select the test to run.
6. Press Enter to run the test selected.
7. After starting a test, do not press any key until
prompted, then follow the instructions on the screen.
8. When the test is completed, press Esc twice to returnto the main menu.
9. Select Exit.
ThinkPad 365 (2625)

51

Diagnostic Test Programs
The diagnostics diskette outline follows:
Main Menu:










Diagnostics– Quick Check–

When selected runs the system quick check
diagnostics.
Module Tests–

When selected displays a menu of the modules
you can select to test.
Options

When selected displays a menu of test
preferences, log results, and save script options.
System info
– When selected displays a menu with selections
for system information
Reports– When selected displays a list of the reports you
can select.
Utilities– When selected displays a list of diagnostic
utilities.
Exit
–

52

When selected exits diagnostics and returns you
to the system prompt.

IBM Mobile Systems - ThinkPad HMM Volume 3Error Messages
Messages generated by the software—the operating
system or application programs—generally are text
messages, but they also can be numeric. The following
are the various error messages.






POST beep codes
POST error messages
Diagnostic error messages
Software generated messages
Multiple messages

Error Message

Description

POST Beep Codes

Sounds emitted from the
speaker if POST finds a
problem. One beep
indicates POST completed
successfully. Multiple
beeps indicate a problem
was found by the POST.

POST Error Messages

Displayed when POST
detects hardware orconfiguration problems.

Diagnostic Error Messages

Displayed when a test
program finds a hardware
problem.

Software Generated Error
Messages

Displayed if a problem orconflict is found by anapplication program, theoperating system, or both.
For an explanation of thesemessages, refer to theinformation supplied withthat software package.

Multiple Messages

The first error that occurs
can cause additional errors.
Always follow the suggested
action instructions for the
first error message
displayed.

Return Codes
For the test programs to properly determine if a test
Passed, Failed, or Aborted, the test programs check theerror-return code at test completion. To register the test
properly in the test log, the test programs must generate
one of the following return codes:
Return CodeDescription

0

Indicates device passed its test.

1

Indicated device failed its test.

2 or greater

Indicates test stopped or aborted.

ThinkPad 365 (2625)

53

Using the Diagnostics Test Programs
To load the IBM ThinkPad 365 Advanced Diagnostics
Diskette, see “Loading the IBM ThinkPad 365 Advanced
Diagnostics Diskette” on page 51.
The test programs provide tests and utilities for users andservice or support professionals to troubleshoot even themost difficult problems.
You can maneuver within the test programs by typing thefirst letter of a menu choice, or using the TrackPoint III
pointer.
Throughout the test programs, pressing the first letter of an
option on a menu is the same as moving to that item withthe cursor and pressing Enter.

Using the Function Keys
Use the following keys to maneuver throughout the test
programs:
Keys

ActionEnter

Select an item, run the test module, or
run the test

Down
Arrow (↓)

Moves the cursor down

Up
Arrow (↑)

Moves the cursor up

F1

Calls up the appropriate Help
information. Use the up arrow key (↑)
or the down arrow key (↓) to scroll
through the information. Pressing F1
from within a Help screen provides ahelp index from which you can selectdifferent categories. One of theimportant help categories is function
key usage. Pressing Esc exits Helpand returns to where you left off.

Esc

Go back to the previous menu.

Additional functions are available in the Module Tests
screen and the Test Group screen using the following
keys:
Keys

ActionSpacebar

Toggle modules on/off (or toggle tests
on/off)

F2

View test results log

F10

Local menu

54

IBM Mobile Systems - ThinkPad HMM Volume 3

Viewing the Test Groups
As you move the cursor bar up or down in the Module
Tests menu, the right hand screen changes to show theattributes, parameters, and the selected tests of thecorresponding Test Group. The “DIAMOND” markindicates a module selected for testing.

Module Testing Mode
If the Quick Check does not find a problem, or you want toperform in-depth testing, the Module Testing mode
provides a method to run individual tests on a single
module. For example, you can run an individual test forthe diskette drive, or you can the test for all selected
modules.
To start the Module Tests:
Attention
To use the IBM ThinkPad 365 Advanced Diagnostics
Diskette, you must have at least 500KB of freememory. Be sure to read the “README.PO” file on
the IBM ThinkPad 365 Advanced Diagnostics Diskette
before using the following instructions.
1. Power-off the computer.
2. Insert the IBM ThinkPad 365 Advanced Diagnostics
Diskette into drive A.
3. Power-on the computer.
4. Follow the instructions on the screen and proceed to
the Main Menu. Allow two to four minutes for the
diagnostic programs to load.
5. At the Main Menu, select Diagnostics.
6. At the Diagnostics Menu, select Module Tests.
7. At the Module Tests Menu, select the modules to test.
8. Use the up and down arrow keys (↑ and ↓) to movethe highlight bar from one selection to the next.
9. Press Enter to run the tests.
10. Do not press any key until prompted, then follow the
instructions on the screen.
11. Follow the instructions on the screen.
12. Select Exit.

Running Selected Module Tests
To run a selected tests for a test group:
1. Use the up and down arrow keys (↑ and ↓) to movethe cursor to your selection.
2. Press Enter.
Note: A “DIAMOND” appears next to your selection.

ThinkPad 365 (2625)

55

Running All Selected Modules
To run all selected test modules:
1. Use the down arrow key (↓) to move the cursor to thelast choice, Run All Selected Modules.
2. Press Enter.
Note: A “DIAMOND” appears next to your selection.

Changing Selected Tests in Test Groups
To change selected tests in a Test Group:
1. In the Module Tests Menu, use the up and downarrow keys (↑ and ↓) to move the cursor to yourselection.
2. Scroll to the test you want to select or deselect.
3. Press the spacebar at the highlighted test to toggle
between select (indicated by a “DIAMOND”) anddeselect.
Note: Pressing the first letter of a test does not
activate the test, unlike menu operation.
4. Press Enter.

Running an Individual Test
To run an individual test:
1. Use the up and down arrow keys (↑ and ↓) to moveto the highlighted bar to the test you want to run.
2. Press Enter to run the test.
Note: The results of the test appear in thelower-right-hand Test Log window. Also, if
you enabled Test Logging, the results arerecorded in the Test Log.
3. When the test completes, press Esc to return to the
Test Group Menu.

Stopping the Tests
To stop running a specific test or stop testing after you
have started a test, press Esc while the test is running.
The test pauses at the first possible opportunity, and theSkip/Abort Test Menu appears with the following options:
OptionActionContinue

The test program begins testing where
it left off.

Skip to next test

The test program skips the current test,
but remaining tests for the selected
Module Tests continue.

Skip to nextgroup

The test program skips the remaining
tests in the current test group.

Abort all tests

The test program stops and returns to
the previous menu.

56

IBM Mobile Systems - ThinkPad HMM Volume 3

System Key Combinations
The following table shows the system Fn key and function
key combinations and their corresponding functions.
The Fn key works independently from the operating
system. The operating system obtains the status throughthe system management interface to control the system.
Key
Combinations

Description

Ctrl+Alt+F11

Accesses the system setup screen
from any full-screen DOS program.

Fn+F2

Displays the fuel gauge.

Fn+F3

Standby mode invocation.

Fn+F4

Suspend mode invocation.

Fn+F7

Toggles LCD/SIMUL/CRT.

Fn+F8

Toggles normal/reverse video.

Fn+F12Hibernation mode invocation.

Fn+PgUp

Speaker enable.

Fn+PgDn

Speaker disable.

External Keyboard Key Combinations
The following table shows the external keyboard
combinations used with the IBM ThinkPad Space Saver
Keyboard.
Key
Combinations

Description

Ctrl+Alt+F2

Fuel gauge display.

Ctrl+Alt+F4

Suspend Mode invocation.

Ctrl+Alt+F7

Toggles LCD/SIMUL/CRT.

Ctrl+Alt+F12

Hibernation invocation.

Ctrl+Alt+F11

Accesses setup and PowerManagement screens.

Attention
To avoid possible conflicts with certain software
applications, you might need to disable these hot-key
combinations. The Ctrl+Alt+Right-Shift-Key toggles
the hot-keys On and Off for the external keyboard.

ThinkPad 365 (2625)

57

Product Overview (365C, CD, CS, CSD)
The following provides an overview of the ThinkPad 365C,
365CD, 365CS, and 365CSD system features.
FeatureDescription

Processor

80486 DX4 75MHzBus
Architecture

AT/ISA Bus

Memory(Standard)Memory(Optional)

4MB, 8MB, or 16MB SO-DIMM

Memory(Maximum)

24MB

CMOS RAM128 Bytes

Video







8MB Memory Board
16MB Memory Board

1MB Video RAM
TFT or DSTN LCD color, supports
from 256 up to 65,536 colors.
VGA (640 x 480 resolution)
Brightness control
Contrast control (DSTN Only)

Diskette Drive

1.44MB, 3.5-inch (Removable)
1.44MB, 3.5-inch 3-Mode (Japan)

Hard Disk
Drive

2.5-Inch (Removable)

Optional
CD-ROM

5.25-Inch CD-ROM (2X) Drive(365CD, 365CSD Models Only)

PCMCIA

One Type-III
or Two Type-II

Keyboard

85-key, 86-key, or 90-key
TrackPoint
12 Function Keys

Audio

16-Bit (365CD, 365CSD Only)

Infrared (IR)IR Transceiver supports wireless file anddata transfer.

58







340MB Hard Disk Drive
540MB Hard Disk Drive
720MB Hard Disk Drive
810MB Hard Disk Drive
1.08GB Hard Disk Drive

IBM Mobile Systems - ThinkPad HMM Volume 3

Product Overview (365E, ED)
The following provides an overview of the ThinkPad 365E
and 365ED system features.
FeatureDescription

Processor

IBM 5x86C 100MHzBus
Architecture

AT/ISA Bus

Memory(Standard)Memory(Option)

4MB, 8MB, or 16MB SO-DIMM

Memory(Maximum)

24MB

CMOS RAM128 Bytes

Video







8MB Memory Board
16MB Memory Board

1MB Video RAM
TFT or DSTN LCD color, supports
from 256 up to 65,536 colors.
VGA (640 x 480 resolution)
Brightness control
Contrast control (DSTN Only)

Diskette Drive

1.44MB, 3.5-inch (removable)
1.44MB, 3.5-inch 3-Mode (Japan)

Hard Disk
Drive

2.5-inch (removable)

Optional
CD-ROM

5.25-Inch CD-ROM (4X) Drive(365ED Model Only)

PCMCIA

One Type-III
or Two Type-II

Keyboard

85-key, 86-key, or 90-key
TrackPoint
12 Function Keys

Audio

16-Bit (356ED Only)

Infrared (IR)IR Transceiver supports wireless file anddata transfer.

ThinkPad 365 (2625)

59

FRU Removals and Replacements
This section contains information about removals andreplacements.










The system board is sensitive to, and can bedamaged by, electrostatic discharge. Establish
personal grounding by touching a ground point with
one hand before touching these units.
An electrostatic discharge (ESD) strap must be used
to establish personal grounding.
Do not damage any parts. Only certified, trained
personnel should service the computer.
The arrows in the “Removals and Replacements”
section show the direction of movement to remove a
FRU, or to turn a screw to release the FRU. The
arrows are marked in numeric order, in squarecallouts, to show the correct sequence of removal.
When other FRUs must be removed before removing
the failing FRU, they are listed at the top of the page.
To replace a FRU, reverse the removal procedureand follow any notes that pertain to replacement.
See “Locations” for internal cable connections andarrangement information.
When replacing a FRU, use the correct screw size asshown in the procedures.
Safety Notice 1: Translation on page 8

Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or othersmall parts, are in place and are not left loose inside
the computer. Verify this by shaking the computerand listening for rattling sounds. Metallic parts or
metal flakes can cause electrical short circuits.
Safety Notice 3: Translation on page 10
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack asrequired by local ordinances or regulations.
Safety Notice 8: Translation on page 14
Before removing any FRU, power-off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.

60

IBM Mobile Systems - ThinkPad HMM Volume 31010 Rear Connector DoorOpen the door, then push down on the center of the door
to remove it.

1015 FootTo replace the foot:

Align the foot in the open position with one pivot pin
in its hinge in the cover base.
Press the other pivot pin into position by rotating thefoot as shown.

ThinkPad 365 (2625)

61

1020 Battery Pack

Disconnect the AC Adapter.
Open the computer.
Release the keyboard latches and raise the keyboard.
Be careful the computer does not fall over backwards
as you remove the battery.

1
2

62

IBM Mobile Systems - ThinkPad HMM Volume 31030 SO-DIMM/Memory Board

Battery Pack (1020)

To remove the optional SO-DIMM, release the latches asshown, then remove the SO-DIMM card.

ThinkPad 365 (2625)

63

1040 Hard Disk Drive

Battery Pack (1020)
Memory Board (1030)
Attention

Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physicalshock. Incorrect handling can cause damage andpermanent loss of data on the hard disk. Before
removing the hard disk drive, have the user make a
backup copy of all the information on the hard disk.
Never remove the hard disk drive while the system isoperating or is in suspend mode.

1

64

IBM Mobile Systems - ThinkPad HMM Volume 31050 Keyboard Unit

Battery Pack (1020)

2

Attention
During removal and replacement procedures, pay
special attention to the LCD Suspend Switch .2/. Be
sure the LCD Suspend Switch actuator is properlyaligned with the hole in the cover.

Procedure continues on the following page.

ThinkPad 365 (2625)

65

1. Remove the plastic upper cover as shown.
2. Lift the keyboard and locate the cables as shown.
Attention
The keyboard cables are fragile and can be damaged.
Do not pull on the keyboard cables. Pull on theconnectors only.

Track Point III Cable

Important





66

When replacing the keyboard, check that thethree cables are clean, and inserted straight andfully into the connectors.
Test all keyboard keys before returning thecomputer to the customer.
When replacing the top cover:– Be sure the tabs on the back of the top
cover are seated in the bottom of the LCD
display– Be sure the LCD Suspend Switch actuator isproperly aligned with the hole in the cover.

IBM Mobile Systems - ThinkPad HMM Volume 31055 Mylar CoverNote
The ThinkPad 365C, CD, CS, and CSD Model mylar
cover is not secured with screws and can be easily
removed after raising the keyboard.
The ThinkPad 365E, ED Model mylar cover is secured
with screws. The following procedure is for ThinkPad
365E, ED Models only.
Battery Pack (1020)
Keyboard Unit (1050)

1. Remove the two screw as shown.
2. Carefully remove the mylar cover.

Attention
During removal and replacement procedures, makesure the Mylar Cover does not interfere with the LCD
Suspend Switch.

ThinkPad 365 (2625)

671060 Processor Card

Battery Pack (1020)
Keyboard (1050)
Mylar Cover (1055)

68

IBM Mobile Systems - ThinkPad HMM Volume 31065 LCD Inverter Card

Battery Pack (1020)

Note
Screws shown above are 8 mm long.

ThinkPad 365 (2625)

69

1068 LCD Panel

Battery Pack (1020)

Note
Screws shown above are 8 mm long.

70

IBM Mobile Systems - ThinkPad HMM Volume 31070 LCD AssemblyBattery Pack (1020)
Keyboard (1050)
Mylar Cover (1055)
Attention

Make note of the location and placement of groundpoints and tape. Replace tape to its original position.

Note
Screws shown above are 6 mm long.

NoteScrews shown above are 8 mm long.

ThinkPad 365 (2625)

71

1080 Sound Card

Battery Pack (1020)
Keyboard (1050)
Mylar Cover (1055)
LCD Assembly (1070)
Attention

During replacement, make sure the microphone (A),speaker (B), and sound card (C) cable connections
are correct.

1
2
A
B

3

C

A

C

Note
Screws shown above are 6 mm long.

72

IBM Mobile Systems - ThinkPad HMM Volume 31090 CD-ROM DriveBattery Pack (1020)
Keyboard (1050)
LCD Assembly (1070)
Sound Card (1080)
Attention

During replacement, make sure that all connectors areproperly aligned and seated.

1

2

3

Note
Screws shown above are 6 mm long.

ThinkPad 365 (2625)

73

1100 Diskette Drive






Battery Pack (1020)
Keyboard (1050)
Mylar Cover (1055)
LCD Assembly (1070)
Sound Card (1080)
Attention

During replacement, make sure that all connectors areproperly aligned and seated.

1

2

3

Note
Screws shown above are 6 mm long.

74

IBM Mobile Systems - ThinkPad HMM Volume 31110 DC/DC Card






Battery Pack (1020)
Keyboard (1050)
Mylar Cover (1055)
LCD Assembly (1070)
Sound Card (1080)
Attention

During replacement, make sure the DC/DC Card
connectors are properly aligned with the system board
and fully seated.

1
2

Note
Screws shown above are 6 mm long.

ThinkPad 365 (2625)

75

1120 Keyboard Card

Battery Pack (1020)
Keyboard (1050)
Mylar Cover (1055)
LCD Assembly (1070)

1. Disconnect all attached cable connectors.
2. Release the locking tab at the right rear of the
keyboard card.
3. Remove the keyboard card.

1
2
3
4

76

IBM Mobile Systems - ThinkPad HMM Volume 31130 LED/IR Board

Battery Pack (1020)
Keyboard (1050)
Mylar Cover (1055)
LCD Assembly (1070)

2

1

Note
Screws shown above are 5 mm long.

ThinkPad 365 (2625)

77

1140 System Board












Battery Pack (1020)
Memory Board (1030)
Hard Disk Drive (1040)
Keyboard Unit (1050)
Mylar Cover (1055)
LCD Assembly (1070)
Sound Card (1080)
Diskette Drive (1100)
DC/DC Board (1110)
Keyboard Card (1120)
LED/IR Board (1130)
Attention

The system board fits very tightly in the bottom cover.
Pay special attention to the PCMCIA eject buttons,
audio connectors, and I/O connectors when removing
and replacing the system board.

2

1

Note
Screws shown above are 6 mm long.

Procedure continues on the following page.

78

IBM Mobile Systems - ThinkPad HMM Volume 3

Important
If you replace the system board FRU, do the following
to update the system setup program.
1.
2.
3.
4.
5.
6.

Power-on the computer.
Go to a DOS full screen.
Press Ctrl+Alt+F11 to access the setup screen.
Use the arrow keys to select Personalization.
Press Tab to edit.
At the Greeting screen, type in the required
information.
7. Press F3 to save.
8. Press Esc to access Exiting Setup.
9. Press F4 to save settings and reboot.

ThinkPad 365 (2625)

79

1150 PCMCIA Assembly













Battery Pack (1020)
Memory Board (1030)
Hard Disk Drive (1040)
Keyboard Unit (1050)
LCD (1060)
Sound Card (1080)
CD-ROM (1090)
Diskette Drive (1100)
DC/DC Board (1110)
Keyboard Card (1120)
LED/IR (1130)
System Board Assembly (1140)

Note
Screws shown above are 6 mm long.

80

IBM Mobile Systems - ThinkPad HMM Volume 3

Locations
System Front View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/
.11/
.12/
.13/
.14/
.15/
.16/
.17/
.18/
.19/

Color LCD Screen
Contrast Control
Brightness Control
Status Indicator
Built in Microphone
LCD Suspend Switch
PCMCIA Release Levers
PCMCIA Slots
Locking Device Keyhole
LCD and Keyboard Latch
Keyboard
Click Buttons
CD-ROM or Diskette Drive
Mechanical CD-ROM Eject Button
Electronic CD-ROM Eject Button
Fn KeyTrackPoint
Speaker Volume Control
Built in Speaker

2
3
4
5
6
15
14
13

12
11

ThinkPad 365 (2625)

81

System Rear View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/
.11/
.12/
.13/
.14/
.15/

LCD and Keyboard Latch
Power Switch
Microphone/Line-In JackLine-in JackLine-out Headphone JackPower JackMIDI/Joystick Port
External Diskette Drive Connector
Parallel Connector
Infrared (IR) Port
Serial Connector
Rear Door
External Display Connector
External Keyboard/Mouse Connector
Port Replicator Connector

1
2
3
4
7

82

6

IBM Mobile Systems - ThinkPad HMM Volume 3

System Board Switch Settings
4
3
2
1

N/A

IBM 5X86
DX4-75

3.6V

3.4V
3.45V
Default

Memory Board Switch Settings

S1

S1

ThinkPad 365 (2625)

83

Parts Listing 365C, CD, CS, CSD (2625)
1

1a

1b
1c

1d

2

17

4

4a

3

5
6

16

7

8
15

9
10

14
13

12
11

84

IBM Mobile Systems - ThinkPad HMM Volume 3

System Unit - ThinkPad 365C, CD, CS, CSD Only
Important
The following FRUs are for ThinkPad 365C, CD, CS,
and CSD models only. For ThinkPad 365E and365ED models, see “Parts Listing 365E, ED (2625)”
on page 87.
Index FRU
1
LCD Assembly, 10.4-Inch DSTN(LCD Cover Kit, Panel, Inverter, Cable)
1a LCD Cover Kit, 10.4-Inch DSTN
1b LCD Panel, 10.4-Inch DSTN
1c Inverter Board, 10.4-Inch DSTN
1d Cable Assembly, 10.4-Inch DSTN
1
LCD Assembly, 10.4-Inch TFT(LCD Cover Kit, Panel, Inverter, Cable)
1a LCD Cover Kit, 10.4-Inch TFT
1b LCD Panel, 10.4-Inch TFT
1c Inverter Board, 10.4-Inch TFT
1d Cable Assembly, 10.4-Inch TFT- Order FRU 75H7621
2
Keyboard (U.S. Only)
3
Mylar Cover- See “Base Assembly (with Parts Kit)”
4
8MB Memory Board
Memory Board Insulated Bracket (10)4a4MB RAM Card (SO-DIMM)
4a 16MB RAM Card (SO-DIMM)
5
Keyboard Card
6
Hard Disk Drive- 340MB Hard Disk Drive- 540MB Hard Disk Drive- 720MB Hard Disk Drive- 810MB Hard Disk Drive- 1.08GB Hard Disk Drive
7
PCMCIA Socket Assembly
8
Processor, 80486-DX4 75MHz
9
System Board (with PCMCIA Socket)- 512K VRAM System Board- 1MB VRAM System Board
10
Battery Pack
11
Lower Cover Assembly
Lower Cover Rubber Feet (2)12
DASD Devices- Internal Diskette Drive Assembly- External Diskette Drive with Cable- CD-ROM (2X) Drive
13
Volume Control Card
14
LED/IR Board
15
DC/DC Board
16
Sound Card (16-Bit)
16
Sound Card (No Audio)
17
Upper Cover (with Screws, Gasket)
AC Adapter (35W Universal)
AC Power Cord (6-Inch - U.S.)
Game Port Cable

75H7620
41H9818
41H7463
42H4049
42H4051
75H7621
41H9819
41H7464
42H4055NA
41H9789

88G1262
75H7624
92G7290
92G7296
41H7436
02K0485
02K0486
85G8371
07H0392
39H2221
75H7622
88G1249
76H2986
76H2984
41H7438
76H3079
75H7609
41H7444
75H7572
41H7446
41H7434
41H7443
41H7433
41H7449
41H7437
75H7573
85G6698
25H2207
75H7576

ThinkPad 365 (2625)

85

Index FRU
Base Assembly (With Parts Kit)
- Upper Cover Bracket with Speaker,- Power Switch Knob, Power Bracket,- Support Bracket, Misc. Rubber Parts.
- TrackPoint Caps (2), IR Lens
Plastic Door/Bezel Package- PCMCIA, I/O, Modem, CD-ROM, FDD- Replicator, Misc. Rubber Parts
Flat Plastic Cable Kit- DSTN, TFT, CD-ROM, Internal FDD
Replicator Base Assembly
Replicator Cable CoverMini-Replicator Assembly
Miscellaneous Parts/Screws Kit- CD-ROM Removal Pin, Washers, Hex Nuts,- Misc. Rubber Parts, Various Mylar Pieces,- Keyboard Knobs, Power Knob, Rubber Pads
- Diskette Drive Brackets, Hard Disk Brackets- Memory Board Bracket, Power Bracket- Screw M2.5x3.5 (4), Screw M2x4 (6),- Screw M3x4 (4), Screw M3x6 (4)- Screw M2x15 (2), Screw M2x7 (4)- Screw M2x5 pan (16), Screw M3x6 pan (4)- Screw M3x6 binding (4)TrackPoint Cap Kit

86

41H7432

41H7452

75H7575
41H7457
41H7458
75H7528
41H7456

84G6536

IBM Mobile Systems - ThinkPad HMM Volume 3Parts Listing 365E, ED (2625)
1

1a

1b
1c

1d

2

17

4

4a

3

5
6

16

7

8
15

9
10

14
13

12
11

ThinkPad 365 (2625)

87

System Unit - ThinkPad 365E, 365ED Only
Important
The following FRUs are for ThinkPad 365E and365ED models only. For ThinkPad 365C, CD, CS,
and CSD models, see “Parts Listing 365C, CD, CS,
CSD (2625)” on page 84.
Index FRU
1
LCD Assembly, 10.4-Inch DSTN (365E Only)
75H7616(LCD Cover Kit, Panel, Inverter, Cable)(U.S.-2625, model R6A, W9A)
1
LCD Assembly, 10.4-Inch DSTN (365ED Only) 75H7617(LCD Cover Kit, Panel, Inverter, Cable)(U.S.-2625, model R6G, W9G)
1a LCD Cover Kit, 10.4-Inch DSTN (365E Only)
42H4047(U.S.-2625, model R6A, W9A)
1a LCD Cover Kit, 10.4-Inch DSTN (365ED Only)
75H7578(U.S.-2625, model R6G, W9G)
1b LCD Panel, 10.4-Inch DSTN
41H7463(U.S.-2625, model R6A, R6G, W9A, W9G)
1c Inverter Board, 10.4-Inch DSTN
42H4049(U.S.-2625, model R6A, R6G, W9A, W9G)
1d Cable Assembly, 10.4-Inch DSTN
42H4051(U.S.-2625, model R6A, R6G, W9A, W9G)
1
LCD Assembly, 10.4-Inch TFT (365E Only)
75H7618(LCD Cover Kit, Panel, Inverter, Cable)
1
LCD Assembly, 10.4-Inch TFT (365ED Only)
75H7619(LCD Cover Kit, Panel, Inverter, Cable)
1a LCD Cover Kit, 10.4-Inch TFT (365E Only)
42H4053
1a LCD Cover Kit, 10.4-Inch TFT (365ED Only)
75H7579
1b LCD Panel, 10.4-Inch TFT
41H7464
1c Inverter Board, 10.4-Inch TFT
42H4055
1d Cable Assembly, 10.4-Inch TFT
42H4057
2
See “Keyboard”
3
Mylar Cover
42H4021
4
8MB Memory Board
88G1262
4
16MB Memory Board (Special Bid only)
76H2997
Memory Board Insulated Bracket (10)75H7624
4a
4MB RAM Card (SO-DIMM) (Option)
92G7290
4a
8MB RAM Card (SO-DIMM) (Option)
88G1262
4a 16MB RAM Card (SO-DIMM) (Option)
92G7296
5
Keyboard Card
75H7536
6
Hard Disk Drive- 540MB Hard Disk Drive
02K0486(U.S.-2625, model R6A, R6G, W9A, W9G)
- 720MB Hard Disk Drive
85G8371- 810MB Hard Disk Drive
07H0392- 1.08GB Hard Disk Drive
39H22217
PCMCIA Socket Assembly
75H76228
Processor, IBM 5x86C 100MHz
40H40129
System Board, 1MB VRAM
76H2982
9
System Board, 1MB VRAM (Japan Only)
76H2982
10Battery Pack
41H7438
11
Lower Cover Assembly
76H3123
Lower Cover Rubber Feet (2)75H7609
12
DASD Devices- Internal Diskette Drive Assembly
41H7444(U.S.-2625, model R6A, W9A)

88

IBM Mobile Systems - ThinkPad HMM Volume 3

Index FRU- External Diskette Drive with Cable(U.S.-2625, model R6G, W9G)
- External Diskette Drive 3-Mode (Japan Only)- External Diskette Drive Cable (Japan Only)- CD-ROM (4X) Drive(U.S.-2625, model R6G, W9G)
13
Volume Control Card
14
LED/IR Board
15
DC/DC Board
16
Sound Card (16-Bit)(U.S.-2625, model R6G, W9G)
16
Sound Card (No Audio)(U.S.-2625, model R6A, W9A)
17
Upper Cover (with Screws, Gasket)
AC Adapter (35W Universal)
AC Adapter (35W Japan Only)
AC Power Cord (6-Inch - U.S.)
Game Port Cable
Base Assembly (With Parts Kit)
- Upper Cover Bracket with Speaker,- Power Switch Knob, Power Bracket,- Support Bracket, Misc. Rubber Parts.
- TrackPoint Caps (2), IR Lens
Plastic Door/Bezel Package- PCMCIA, I/O, Modem, CD-ROM, FDD- Replicator, Misc. Rubber Parts
Flat Plastic Cable Kit- DSTN, TFT, CD-ROM, Internal FDD
Replicator Base Assembly
Replicator Cable CoverMini-Replicator Assembly
Miscellaneous Parts/Screws Kit- CD-ROM Removal Pin, Washers, Hex Nuts,- Misc. Rubber Parts, Various Mylar Pieces,- Keyboard Knobs, Power Knob, Rubber Pads
- Diskette Drive Brackets, Hard Disk Brackets- Memory Board Bracket, Power Bracket- Screw M2.5x3.5 (4), Screw M2x4 (6),- Screw M3x4 (4), Screw M3x6 (4)- Screw M2x15 (2), Screw M2x7 (4)- Screw M2x5 pan (16), Screw M3x6 pan (4)- Screw M3x6 binding (4)TrackPoint Cap Kit

75H7572
10H4055
74H0219
42H4042
41H7434
41H7443
42H4037
42H4035
42H4033
75H7573
85G6698
85G6700
25H2207
75H7576
41H7432

75H7574

75H7575
41H7457
41H7458
75H7528
41H7456

84G6536

Keyboard (Index Number 2)
ArabicBelgianCanadian (French)
DanishDutch
SwedishFrenchGerman
Greek
Hebrew
ItalianJapanese
Latin American, Spanish

42H3936
42H3937
42H3938
42H3939
42H3940
42H3941
42H3942
42H3943
42H3944
42H3945
42H3946
42H3947
42H3948

ThinkPad 365 (2625)

89

NorwegianPortuguese/Brazil
Russian
SpanishSwiss French
Swiss German
Swiss French/German Combination
TurkishUnited Kingdom
United States90

42H3949
42H3950
42H3956
42H3951
42H3953
42H3952
75H7562
42H3954
42H3955
41H9789

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 365X, 365XD (2625)
Read This First . . . . . . . . . . . . . . . . . . 93
Checkout Guide. . . . . . . . . . . . . . . . . 96
Memory Checkout . . . . . . . . . . . . . . . 97
System Board and CPU Card Checkout . . . . . 98
Keyboard/Auxiliary Input Device Checkout . . . . 98
TrackPoint III Checkout. . . . . . . . . . . . 99
Port Replicator Game Port Checkout. . . . . . 99
Diskette Drive Test
. . . . . . . . . . . . . . 99
Status Indicators Checkout . . . . . . . . . . 100
Power Systems Checkout. . . . . . . . . . 100
Power Management Features. . . . . . . . 104
Symptom-to-FRU Index . . . . . . . . . . . . . 106
Numeric Error Codes . . . . . . . . . . . . . 106
Beep Symptoms . . . . . . . . . . . . . . . 110
No-Beep Symptoms . . . . . . . . . . . . . 111
LCD–Related Symptoms . . . . . . . . . . . 112
Keyboard/TrackPoint III–Related Symptoms . . 113
Indicator–Related Symptoms . . . . . . . . . 113
Power–Related Symptoms . . . . . . . . . . 113
Function–Related Symptoms . . . . . . . . . 114
Peripheral Device–Related Symptoms . . . . . 115
Infrared–Related Symptoms. . . . . . . . . 115
Other Symptoms . . . . . . . . . . . . . . . 115
Intermittent Problems. . . . . . . . . . . . 115
Undetermined Problems. . . . . . . . . . . 116
Related Service Procedures . . . . . . . . . . . 117
Status Indicators . . . . . . . . . . . . . . . 117
How to Run the Diagnostics. . . . . . . . . 120
Error Log
. . . . . . . . . . . . . . . . . . 121
Diagnostic Error Codes. . . . . . . . . . . 121
Checking the Installed Devices List . . . . . . 123
Password Combinations (POP, HDP, PAP)
. . 124
How to Run a Low-Level Format. . . . . . . 124
PC Test Card LED . . . . . . . . . . . . . . 124
Fn Key Combinations. . . . . . . . . . . . 125
Product Overview (365X, 365XD) . . . . . . . . 126
FRU Removals and Replacements . . . . . . . . 127
1010 Rear Connector Door
. . . . . . . . . 128
1020 Battery Pack
. . . . . . . . . . . . . 129
1025 Insulator Sheet. . . . . . . . . . . . 130
1030 DIMM Card (If Installed). . . . . . . . 132
1040 Diskette Drive / CD-ROM Drive . . . . . 133
1045 Base Cover Assembly / Keyboard Latch
135
1050 Hard Disk Drive . . . . . . . . . . . . 136
1060 Top Cover. . . . . . . . . . . . . . 137
1070 Keyboard Unit . . . . . . . . . . . . . 139
1080 LCD Assembly. . . . . . . . . . . . 140
1085 LCD Panel. . . . . . . . . . . . . . 142
1090 Indicator Card . . . . . . . . . . . . . 155
1100 Volume Switch / Speaker Assembly . . . 156
1110 Keyboard Card / Cable . . . . . . . . . 157
 Copyright IBM Corp. 1997911120 CPU Card and System Board Card . . .
1130 System Board / PCMCIA Slot Assembly .
Locations . . . . . . . . . . . . . . . . . . . .
Front View
. . . . . . . . . . . . . . . . .
Inside View
. . . . . . . . . . . . . . . . .
Bottom View . . . . . . . . . . . . . . . . .
Rear View . . . . . . . . . . . . . . . . . .
Power-On Password Jumper Pads
. . . . . .
Parts Listing 365X, 365XD (2625) . . . . . . . .
Model 365X - Diskette Drive. . . . . . . . .
Model 365XD - CD-ROM Drive . . . . . . . .
Common/Option Parts List . . . . . . . . . .

92

IBM Mobile Systems - ThinkPad HMM Volume 3

159
162
164
164
165
166
167
168
170
170
172
179

Read This First
Before you go to the checkout guide, be sure to read thissection.
Important Notes










Only certified trained personnel should
service the computer.
Read FRU service procedures before replacing
any FRUs.
Be extremely careful during write operations
such as copying, saving, or formatting. Drives
in the computer that you are servicing might havebeen rearranged or the drive startup sequence
might have been altered. If you select anincorrect drive, data or programs can be written
over.
Replace FRUs only for the correct model.
When you replace the FRU, make sure themodel of the machine and FRU part number are
correct by referring to the parts list.
FRUs should not be replaced because of asingle, un-reproducible failure. Single failures
can occur from a variety of reasons that havenothing to do with a hardware defect such as:cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should only
be considered when a recurring problem exists.
If this is suspected, clear the error log and run
the test again. Do not replace any FRUs if log
errors do not reappear.
Be careful not to replace a non-defective FRU.

How to Use Error Messages:

Use the error
codes displayed on the screen to diagnose failures. If
more than one error code is displayed, begin the diagnosis
with the first error code. The cause of the first error code
can result in false error codes being displayed. If no error
code is displayed, see if the error symptom is listed in the“Symptom-to-FRU Index” on page 106.

Port Replicator Problems: If you suspect a
problem with the Port Replicator, see “Port Replicator
Checkout” in the “Common Devices Checkout” section.
How to Diagnose Multiple FRUs: When theadapter or device has more than one FRU, the error code
could be caused by either FRU. Before replacing multiple
FRUs, try removing or exchanging each FRU, one by one
in the designated sequence, to see if the symptoms
change.

ThinkPad 365X, 365XD (2625)

93

What to Do First:

The servicer must include thefollowing information on the parts exchange form or parts
return form that is attached to the returned FRU:
1.
2.
3.
4.
5.
6.
7.
8.
9.

Name and phone number of servicer.
Date of service.
Date when part failed.
Date of purchase.
Failure symptoms, error codes appearing on
display, and beep symptoms.
Procedure index and page number in which
failing FRU was detected.
Failing FRU name and part number.
Machine type, model number, and serial number.
Customer's name and address.

Before checking problems with the computer, determine
whether or not the damage is covered by the warranty byreferring to the following:
Warranty Note
During the warranty period, the customer may be
responsible for repair costs if the computer damage
was caused by misuse, accident, modification,
unsuitable physical or operating environment, or
improper maintenance by the customer. The following
list provides some common items that are not covered
under warranty and some symptoms that may indicate
the system was subjected to stresses beyond normal
use.















94

LCD panel cracked by excessive force or being
dropped.
Scratched (cosmetic) parts.
Cracked or broken plastic parts, broken latches,broken pins, or broken connectors caused byexcessive force.
Damage caused by liquid spilled into the system.
Damage caused by improperly inserting a
PCMCIA card or installation of an incompatible
card.
Damage caused by foreign material in thediskette drive slot.
Diskette drive damage caused by pressing thediskette drive cover or inserting diskettes withmultiple labels.
Damaged or bent diskette eject button.
CD-ROM drive damage caused by excessive
force, shock, or from being dropped.
Fuses blown by attaching a non-supported
device.
Forgotten computer or hard disk password(making computer or hard disk unusable).

IBM Mobile Systems - ThinkPad HMM Volume 3

If the following symptoms are present, they may
indicate damage caused by non-warranted
activity:Missing parts may be a symptom of unauthorized
service or modification.
HDD spindles can become noisy if subjected toexcessive force or if the HDD is dropped.
I9990303 errors can be caused by exposure tostrong magnetic fields.

How to Disable the Power-On Password:
Important
This information is not available in this online HMM
format. See your IBM Servicer or IBM Authorized
Dealer for this procedure.

Supervisor and Hard Disk Passwords:

The
Supervisor Password and the Hard Disk Password (HDP)
are security features that are used to protect the systemand the hard disk data from unauthorized access. No
overriding capability is provided. If only a hard disk
password is set, obtaining permission from the password
owner to unlock the password is a prerequisite for running
diagnostic tests and performing service. If both supervisor
password and hard disk password are set, you can enter
Easy-Setup by pressing the Enter key or power-on
password at the supervisor password prompt. In this case,
the Password, Start up, and Initialize icons cannot be
selected.
See “Password Combinations (POP, HDP, PAP)” on
page 124 for more information about passwords.

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95

Checkout Guide
Use the following procedure as a guide for computer
problems.
Note
The diagnostic tests are intended to test only IBM
products. Non-IBM products, prototype cards, ormodified options can give false errors and invalid
system responses.
1. Obtain the failing symptoms in as much detail as
possible.
2. Verify the symptoms by attempting to recreate thefailure by running the diagnostic test or by repeating
the same operation.
Note
To run the diagnostics, refer to “How to Run the
Diagnostics” on page 120.
3. Use the following table with the verified symptom todetermine which page to go to. Search thesymptoms column and find the description that best
matches your symptom; then go to the page shown in
the “Go to” column.
Symptoms (Verified)

Go toPower failure. (Thepower indicator does not
go on or stay on.)“Power Systems
Checkout” on page 100.

POST does notcomplete. No beeps or
error codes areindicated.

“Symptom-to-FRU
Index” on page 106,
and then use theNo-Beep Symptoms
table.

POST beeps, but noerror codes are
displayed.

“Symptom-to-FRU
Index” on page 106,
and then use the Beep
Symptoms table.

POST detected an error
and displayed numericerror codes.

“Symptom-to-FRU
Index” on page 106,
and then use the
Numeric Error Codes
table.

The diagnostic test
detected an error anddisplayed a FRU code.

“FRU Codes” onpage 123.

96

IBM Mobile Systems - ThinkPad HMM Volume 3Symptoms (Verified)

Go to

The configuration is not
the same as theinstalled devices.

“Checking the Installed
Devices List” onpage 123.

Other symptoms (suchas LCD display
problems).

“Symptom-to-FRU
Index” on page 106,
and then use the Other
Symptoms table.

Symptoms cannot berecreated. (Intermittent
problems.)

Use the customer
reported symptoms and
go to “Symptom-to-FRU
Index” on page 106.

Memory Checkout
DIMM cards are available for increasing memory capacity.
DIMM

Displayed ValueNo DIMM installed

7808KB

8MB

16000KB

16MB

24192KB

32MB

40576KB

Memory errors might stop system operations, show error
messages on the screen, or hang the system.
Use the following procedure to isolate memory problems.
Note
Make sure that the DIMM is fully installed into theconnector. Both latches must be latched completely.
A loose connection can cause error code 195.
1. Power off the computer and remove the DIMM fromits slot (if installed).
2. Press and hold the F1 key; then power on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
3. Select Test and press Enter.
4. Select Memory and press Enter to run the memory
test on base memory. If an error appears, replace
the system board.
5. Power off the computer and reinstall the DIMM; thenpower on the computer. Verify the memory size; thentest the memory. If an error appears, replace theDIMM.
If memory problems occur intermittently, make sure theDIMM socket latches are latched completely. If the DIMM
latches are securely latched, use the loop option to repeat
the test. When the test detects an error, an error log is

ThinkPad 365X, 365XD (2625)

97printed on the printer connected to the parallel port. See“Error Log” on page 121 for more information.

System Programs in Flash Memory: System setup
programs and diagnostic tests are stored in flash memory.

Flash Memory Update: A flash memory update isrequired for the following conditions:

New versions of system programs.
New features or options are added.

To update the flash memory, do the following:
1. Get the appropriate diskette containing the update.
2. Insert the System Program Service Diskette into
drive A and power on the computer.
3. Select Update system programs from the menu.

System Board and CPU Card Checkout
The processing functions are performed by both thesystem board and the CPU card. Processor problems canbe caused by either FRU. However, the CPU card
generally has a lower probability of failure. When anumeric code calls the system board or the CPU card as a
FRU, or the CPU card is called by a diagnostic test by
showing FRU code 11, use the following procedure toisolate the problem:
1. Run the system board test to verify the symptom.
This test verifies both the system board and the CPU
card. If no error is detected, return to “Checkout
Guide” on page 96.
2. If FRU code 10 appears, replace the system board
but do not replace the CPU card. Transfer the CPU
card from the old system board to the new systemboard.
3. If FRU code 11 appears, reseat the CPU card.
4. Rerun the test to verify the fix.
5. If FRU code 11 remains, replace the CPU card.
If above procedure does not correct the problem, go to“Undetermined Problems” on page 116.

Keyboard/Auxiliary Input Device
Checkout
Remove the external keyboard if the internal keyboard is tobe tested.
If the internal keyboard does not work or an unexpectedcharacter appears, make sure that the three flexible cables
extending from the keyboard are correctly seated in theconnectors on the keyboard card.
If the keyboard cable connections are correct, check the
keyboard card.

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IBM Mobile Systems - ThinkPad HMM Volume 3

TrackPoint III Checkout
If the TrackPoint III will not work, check the configuration in
the ThinkPad Features program. If the configuration of the
TrackPoint III is disabled, select Enable to enable it.
If this does not correct the TrackPoint III problem, continue
with the following steps.
The TrackPoint III does automatic compensations to adjust
the pointer sensor. During this process, the pointer moves
on the screen automatically for a short time. This
self-acting pointer movement can occur when a slight,
steady pressure is applied to the TrackPoint III pointerwhile the computer is powered on or while the system isrunning, or when re-adjustment is required because thetemperature has exceeded its normal temperature range.
This symptom does not indicate a hardware problem. No
service actions are necessary if the pointer movement
stops in a short period of time.
If a click button problem or pointing stick problem occurs,
do the following:
1.
2.
3.
4.

Go to the Easy-Setup screen.
Select an item with the pointing stick.
Press either the left or right click button.
Verify that both buttons work correctly.

If either the pointing stick or the click button do not work,
do the following actions one at a time to correct the
problem. Do not replace a non-defective FRU.


Reseat the keyboard card cables.
Replace the keyboard.
Replace the keyboard card.
Replace the system board.

Port Replicator Game Port Checkout
Do the following if a Port Replicator joystick problem
occurs:
1.
2.
3.
4.
5.

Connect the joystick to the Port Replicator game port.
Go to the Easy-Setup screen.
Select an item with the joystick.
Press any button of the joystick.
Verify that all buttons work correctly.

If either the joystick or a button does not work, replace thePort Replicator. If the problem still remains, replace thesystem board.

Diskette Drive Test
Do the following to isolate the problem to a controller,
drive, or diskette. A scratch, write enabled, non-defective
2HD diskette is required.
FDD-1 represents the built-in diskette drive for 365X.
FDD-2 represents a diskette drive in the Port Replicator orThinkPad 365X, 365XD (2625)

99

a diskette drive attached through the external diskette drive
connector.
Warning: Make sure that the diskette does not havemore than one label attached to it. Multiple labels cancause damage to the drive or can cause the drive to fail.
Do the following to select the test device:
1. Select the advanced diagnostics mode and selectTool; then select the FDD-1 or FDD-2 icon and press
the spacebar. A √ mark appears next to the selected
icon. Insert a blank diskette when instructed.
2. Run the diskette drive test.
3. If the controller test detects an error, FRU code 10
appears. Replace the system board.
4. If the controller test runs without errors, the drive
read/write tests start automatically.
5. If the drive test detects an error, FRU code 50 for
FDD-1 or 51 for FDD-2 appears. If the diskette itself
is known to be good, replace the drive.

Status Indicators Checkout
If a status indicator LED problem occurs, do the following:
1. Power off the computer.
2. Power on the computer.
3. All the LEDs in the status indicator panel turn on for a
moment soon after the computer is powered on.
Verify that all indicators turn on correctly.
If some of the indicators do not turn on, replace the LED
indicator card.
If the problem still remains, replace the keyboard card.

Power Systems Checkout
To verify the symptom of the problem, power on thecomputer using each of the power sources as follows:
1. Remove the battery pack, diskette drive, and harddisk drive.
2. Connect the AC Adapter and check that power is
supplied.
3. Install the diskette drive or hard disk drive one at atime, and check that power is supplied from eachpower source.
4. Disconnect the AC Adapter, remove the hard disk anddiskette drive, and install the charged battery pack;then check that power is supplied by the battery pack.
If you suspect a power problem, see the appropriate power
supply check listed below.





100

“Checking the AC Adapter” on page 101.
“Checking Operational Charging” on page 102.
“Checking the Battery Pack” on page 102.
“Checking the Backup Battery” on page 103.
IBM Mobile Systems - ThinkPad HMM Volume 3

Checking the AC Adapter:

You are here
because the computer fails only when the AC Adapter is
used.





If the power problem occurs only when a Port
Replicator is used, replace the replicator.
If the power-on indicator does not turn on, check thepower cord of the AC Adapter for correct continuity
and installation.
If the operational charge does not work, go to“Checking Operational Charging” on page 102.
Note

There are two types of adapters. The procedure forchecking both types is the same.
1. Unplug the AC Adapter cable from the computer andmeasure the output voltage at the plug of the AC
Adapter cable. See the following figure:2
1(16 - 10 V)




2.

3.
4.
5.

Pin

Voltage (V dc)

1+14.5 to +17.0

2

GroundIf the voltage is correct, replace the system board.
If the problem is not corrected, go to “Undetermined
Problems” on page 116.
If the voltage is not correct, go to the next step.
Unplug the AC Adapter cable from the ac power
outlet and wait five minutes or longer to allow theover-voltage protection circuit to be fully discharged
and initialized.
Plug the AC Adapter cable into the ac power outlet.
Measure the output voltage of the AC Adapter.
If the voltage is still not correct, replace the AC
Adapter.
Note

An audible noise from the AC Adapter does notalways indicate a defective adapter.

ThinkPad 365X, 365XD (2625)

101

Checking Operational Charging: To check
operational charging, use a discharged battery pack or abattery pack that has less than 50% of the total power
remaining when installed in the computer.
Perform operational charging. If the battery statusindicator does not turn on, remove the battery pack andleave it to return to room temperature. Reinstall thebattery pack. If the charge indicator still does not turn on,
replace the battery pack.

Checking the Battery Pack:

Battery charging will
not start until the Fuel-Gauge shows that less than 95% of
the total power remains; with this condition the battery
pack will charge to 100% of its capacity. This protects thebattery pack from being overcharged or having ashortened life.
Do the following:
1. Power off the computer.
2. Remove the battery pack and measure the voltage
between battery terminals 2 (+) and 6 (−). See thefollowing figure:

6 (-)
5 (T)

2 (+)
Terminal

Voltage (V dc) / Signal

1

—

2

+8 to +13.5

3

—

4

—

5

Thermal6

Ground (−)

Note
Signal lines, not used in these steps, are used forcommunication between the system and thebattery.

102

IBM Mobile Systems - ThinkPad HMM Volume 3

3. If the voltage is less than +9.6 V dc, the battery packhas been discharged. Recharge the battery pack.
If the voltage is still less than +9.6 V dc after
recharging, replace the battery.
Note
If the voltage of the battery pack is 0 V, it is not
defective.
4. If the voltage is more than +9.6 V dc, measure theresistance between battery terminals 5 and 6. The
resistance must be 4 K to 30 K ohm.
If the resistance is not correct, replace the battery
pack. If the resistance is correct, replace the systemboard.

Checking the Backup Battery
1. Power off the computer and unplug the AC Adapter
from the computer.
2. Open the keyboard and remove the battery pack.
3. Lift the right-hand section of the black insulator sheet.
4. Locate the backup battery on the system board,
shown at .1/.

1

5. Using a plastic tool, remove the backup battery fromthe system board.
DANGER
Do not use a metal tool when removing
the backup battery. Use only a plastic
tool.

ThinkPad 365X, 365XD (2625)

103

6. Measure the voltage of the backup battery. Refer tothe following table for voltages:
Wire

Voltage (V dc)++2.5 to +3.7−

GroundIf the voltage is correct, replace the system board.
If the voltage is not correct, the backup battery has
been discharged. Replace the backup battery.
If the backup battery discharges quickly after
replacement, replace the system board.

Power Management Features
Three power management modes are provided by thecomputer to reduce power consumption and prolong
battery power.

Standby Mode:

When in standby mode the following

occurs:The LCD backlight turns off.
The hard disk motor stops.

Events that cause the computer to enter standby mode:Standby requested by the Fn key. (Fn+F3)
No activity under auto-standby enabled by theThinkPad Features program.



Events that cause the computer to exit or resume standbymode:(Resume) Any key operation.



Suspend Mode: When in suspend mode, thefollowing, in addition to the two actions of standby mode,
occur:The LCD is powered off.
The hard disk is powered off.
The CPU is stopped.





Notes
1. In the ThinkPad Features Program, the computercan be set to “Will not suspend even if LCD isclosed.”2. When the computer is powered with ac power
and is used with one of the communication PC
cards, the computer enters standby mode; thePC card and application program remain active.
3. The computer cannot enter suspend mode while
a communication link is running.

104

IBM Mobile Systems - ThinkPad HMM Volume 3

Events that cause the computer to enter suspend mode:







Suspend mode is requested by the Fn key (Fn+F4).
The LCD is closed.
The specified time has elapsed from the lastoperation with the keyboard, mouse, hard disk drive,
parallel connector, or diskette drive; or the AC
Adapter is plugged in. The time is specified by
Suspend Timer in the ThinkPad Features program.
The battery condition is low. The battery power
indicator blinks amber.
Either the PS2 OFF or PS2 SUSpend command is
set in the ThinkPad Features program.

Events that cause the computer to exit or resume suspend
mode:







(Resume) The LCD is opened.
(Resume) The real time clock alarm is signaled.
(Resume) The ring indicator (RI) is signaled by aserial or PCMCIA device.
(Resume) The Fn key is pressed.
(Resume) An external keyboard key is pressed while
operating with ac power.
(Exit) Timer (timeout) conditions are satisfied forentering hibernation mode.

Hibernation Mode:

When in hibernation mode, thefollowing occurs:The system status, RAM, VRAM, and setup data are
stored on the hard disk.
The system is powered off.
Note

The computer cannot enter hibernation mode when
the computer is powered with ac power and acommunication PC card is used.
Events that cause the computer to enter hibernation mode:






The keyboard is opened.
Hibernation mode is requested by the Fn key(Fn+F12).
Timer/timeout conditions are satisfied in suspendmode.
A critical low battery condition occurs.
The PS2 HIBernation command is set in the
ThinkPad Features program.

Event that causes the computer to exit hibernation mode:The power-on switch is operated.

When power is turned on, the hibernation history in theboot record on the hard disk is recognized and systemstatus is restored from the hard disk to resume operation.

ThinkPad 365X, 365XD (2625)

105

Symptom-to-FRU Index
The Symptom-to-FRU Index lists the symptoms and errors
and the possible causes. The most likely cause is listed
first.
Note
Perform the FRU replacement or actions in thesequence shown in the “FRU/Action” columns. If a
FRU did not solve the problem, put the original partback in the computer. Do not replace a non-defective
FRU.
This index can also be used to help you decide which
FRUs to have available when servicing a computer.
Numeric error codes show the errors detected in POST or
system operation. In the following error codes, X can be
any number.
If no codes are available, use narrative symptoms.
If the symptom is not listed, go to “Undetermined
Problems” on page 116.
Note
For any IBM device not supported by the diagnostic
codes in this ThinkPad computer, see the manual forthat device.

Numeric Error Codes
Symptom / Error

FRU / Action in Sequence

10X

1. System Board

101
102
103
104
105
107
108
109

Interrupt failure.
Timer failure.
Timer interrupt failure.
Protected mode
failure.
Last 8042 command
not accepted.
NMI test failure.
Timer bus test failure.
Low meg-chip select
test.

110
(Planar parity.)106

1. Go to “Memory
Checkout” onpage 97.
2. DIMM
3. The computer is
attached to a Port
Replicator.
4. System Board

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

111(I/O parity.)

1. Go to “Memory
Checkout” onpage 97.
2. Port Replicator
3. System Board

158(HDP was not set eventhough the supervisor
password is set.)

1. Set an HDP for the
hard disk drive.

159(HDP is not set the same as
the supervisor password.)

1. Set a correct HDP for
the hard disk drive.

161(Dead battery.)

1. Go to “Checking the
Backup Battery” onpage 103.
2. Backup Battery
3. System Board

163(Time and Date were notset.)

1. Set Time and Date.
2. Backup Battery
3. System Board

173(Configuration data waslost.)

1. Select OK in the error
screen; then set thetime and date.
2. Backup Battery
3. System Board

174(Configuration error:
Perform “Checking theInstalled Devices List” onpage 123 before changing
any FRUs.)

1. Check Device
Configuration.
2. System Board
3. Diskette Drive
Assembly
4. Hard Disk Drive
Assembly

175, 177, 178

1. System Board

175
177
178

EEPROM CRC #1
error.
Supervisor password
check sum error.
EEPROM is not
functional.

183(Incorrect password enteredat the supervisor password
prompt.)1. Have the user
examine thepassword.

184(POP check sum error.)

1. Reset the POP(power-on password)in Easy-Setup.

185(The startup sequence is
not valid. Suspect thatpower was off when thestartup sequence was being
updated.)

1. Reset the startup
sequence inEasy-Setup.

186

1. System Board

ThinkPad 365X, 365XD (2625)

107

Symptom / Error

FRU / Action in Sequence

188(EEPROM CRC #2 error.)

1. Set the system
identification using
the ThinkPad 750Ce
hardwaremaintenance diskette.

190(Depleted battery pack was
installed when the power
was on.)1. Go to “Checking theBattery Pack” onpage 102.

191XX(PM initialization error.)

1. System Board
2. CPU card

195
(The configuration read fromthe hibernation area does
not match the actual
configuration.)

1. Check if theconfiguration waschanged.
For example, check if
the hard disk drive isfrom another computer.
Also, when a DIMM
card has been
installed, unsecured
DIMM latches canresult in this error.
Make sure the DIMM is
securely seated andfully latched into place.

196(Read error occurred in thehibernation area of theHDD.)

1. Run the hard disk
drive test.
2. Hard Disk Drive

199XX(Resume error.)

1. System Board

1XX

1. System Board

2XX
201
202
203
205
221

Memory data error.
Memory line error
00–15.
Memory line error
16–23.
Memory test failure
on on-board memory.
ROM to RAM remap
error.

301, 303, 304, 305, 3XX(301: Keyboard error.)108

1. Go to “Memory
Checkout” onpage 97.
2. DIMM
3. System Board

1. Go to“Keyboard/Auxiliary
Input Device
Checkout” onpage 98.
2. Keyboard
3. External Numeric
Keypad
4. External Keyboard
5. Keyboard/Mouse Cable
6. Keyboard Card
7. System Board

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

601, 6XX(601: Diskette drive orcontroller error.)

1. Go to “Diskette Drive
Test” on page 99.
2. Diskette Drive
Assembly
3. Diskette
4. System Board

602(Diskette read error.)

1. Go to “Diskette Drive
Test” on page 99.
2. Diskette
3. Diskette Drive
Assembly

604(Unacceptable ID was readfrom the diskette drive.)

1. Go to “Diskette Drive
Test” on page 99.
2. Diskette Drive
Assembly
3. System Board

11XX
1101: Serial_A test failure.

1. Serial Device
2. Communication Cable
3. System Board

12XX
1201: Serial_B test failure.

1. System Board

17XX

1. Hard Disk Drive
2. System Board

1701

Hard disk controller
failure.
1780, 1790 Hard disk 0
error.
1781, 1791 Hard disk 1
error.
24XX(2401: System board video
error.)

1. System Board

808X

1. Reseat the PCMCIA
Connector.
2. PCMCIA Slot
Assembly
3. PCMCIA Device
4. System Board

8081

8082

PCMCIA presence
test failure.
(PCMCIA revision
number also
checked.)PCMCIA register
test failure.

860X(Pointing device error when
TrackPoint III is disabled.)
8601

8602
8603

1. External Mouse
2. External Keyboard
3. System Board

System bus
error–8042 mouseinterface.
External mouseerror.
System bus error ormouse error.

ThinkPad 365X, 365XD (2625)

109Symptom / Error

FRU / Action in Sequence

861X(Pointing device error when
TrackPoint III is enabled.)

1. Reseat the keyboard
connector.
2. Reseat the keyboard
TrackPoint III cable on
the keyboard card.
See “1070 Keyboard
Unit” on page 139.
3. Keyboard
4. External Mouse
5. System Board

8611

8612
8613

System bus
error–I/F between
8042 and IPDC.
TrackPoint error.
System board or
TrackPoint error.

I9990301
I9990302
I9990305
I9990301
I9990302

I9990305

Hard disk error.
Invalid harddisk bootrecord.
No bootabledevice.

1. Reseat the bootdevice.
2. Check the startup
sequence for thecorrect boot device.
3. Check that theoperating system has
no failure and isinstalled correctly.

I9990303(Bank 2 flash ROM checksum error.)

1. System Board

Other codes not listedabove

1. Go to “Undetermined
Problems” onpage 116.

Beep Symptoms
Symptom / Error

FRU / Action in Sequence

Continuous beeps.

System Board

One beep and ablank, unreadable, or
flashing LCD.

1. Reseat the LCD connector.
2. LCD Assembly
3. System Board

One beep, and themessage “Unable toaccess boot source.”

1. Boot device
2. System Board

One long beep, two
short beeps, and ablank or unreadable
LCD.

1. System Board
2. LCD Assembly

One long beep
followed by four short
beeps each time thepower switch isoperated.
(System cannot
power on because of
low battery voltage.)

Connect the AC Adapter or
install a fully charged battery.

One beep every
second.
(System shuts downbecause of low
battery voltage.)

Connect the AC Adapter or
install a fully charged battery(allows system to complete
shutdown before changing thebattery).

110

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

Two short beeps witherror codes.

POST error. See “Numeric Error
Codes” on page 106.

Two short beeps withblank screen.

System Board

No-Beep Symptoms
Symptom / Error

FRU / Action in Sequence

No beep, power-on
indicator not on, anda blank LCD during
POST.

1. Go to “Power Systems
Checkout” on page 100.
2. System Board
3. Power sources

No beep, power-on
indicator on, and ablank LCD during
POST.

1. System Board
2. CPU Card

No beep, power-on
indicator on, and ablinking cursor only
during POST.

1. System Board
2. CPU Card

No beep during
POST but systemruns correctly.

1. Turn the volume up andcheck the speaker.
2. Speaker / Volume Switch
Assembly

ThinkPad 365X, 365XD (2625)

111

LCD–Related Symptoms
Important
The TFT LCD on some models of this computer
contains over 1,440,000 thin-film transistors (TFTs). A
small number of missing, discolored, or lighted dots
(on all the time) is characteristic of TFT LCD
technology, but excessive pixel problems can cause
viewing concerns. The LCD should be replaced if thenumber of dots satisfies the following condition:


The number of missing, discolored, or lighted
dots in any background is 21 or more.

Symptom / Error

FRU / Action in Sequence

No beep, power-on
indicator on, and ablank LCD during
POST.

1. System Board
2. CPU Card












LCD backlightnot working, or
LCD too dark, or
LCD brightness
cannot be
adjusted, or
LCD contrast
cannot be
adjusted.

1. Reseat the LCD connectors.
2. LCD Assembly

LCD screen
unreadable, orCharacters
missing pels, or
Screenabnormal, orWrong color
displayed.

1. See important note for“LCD–Related Symptoms.”
2. Reseat all LCD connectors.
3. LCD Assembly
4. System Board

LCD has extra
horizontal or verticallines displayed.

112

LCD Assembly

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard/TrackPoint III–Related
Symptoms
Symptom / Error

FRU / Action in Sequence

Keyboard (one ormore keys) does notwork.

1. Reseat the keyboard
connector.
2. Reseat the three keyboard
cables on the keyboard card.
3. Keyboard
4. Keyboard Card
5. System Board

TrackPoint III does
not work.

1. Reseat the keyboard
connector.
2. Go to “TrackPoint III
Checkout” on page 99.
3. Keyboard
4. System Board

Pointer moves
automatically or does
not work correctly.

1. See “TrackPoint III
Checkout” on page 99.

Indicator–Related Symptoms
Symptom / Error

FRU / Action in Sequence

Indicator incorrectly
remains off or on, butsystem runs
correctly.

1. Reseat the LED Indicator
Card cable.
2. LED Indicator Card
3. System Board

Power–Related Symptoms
Symptom / Error

FRU / Action in Sequence

Power shuts down
during operation.

1. Go to “Power Systems
Checkout” on page 100.
2. Battery Pack
3. Remove the battery pack andlet it cool for two hours.
4. Power sources

The system will not
power off.

System Board

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113

Function–Related Symptoms
Symptom / Error

FRU / Action in Sequence

The system will notenter hibernation
mode by opening the
keyboard.

1. Go to “Hibernation Mode”
on page 105 and check
whether the computer canenter hibernation mode.
2. Enable hibernation modeusing the ThinkPad Features
program.
3. Boot an operating system andpress Fn+F12. If thecomputer enters hibernationmode, suspect that theapplication program is notworking properly.
4. CPU Card
5. Initialize the system in
Easy-Setup.
6. System Board

The system will notsuspend or resume
by opening or closing
the LCD.

1. Go to “Suspend Mode” onpage 104, and check thatthe computer can entersuspend mode.
2. Boot an operating system andpress Fn+F4. If the computer
enters suspend mode,suspect that the application
program is not working
properly.
3. Initialize the system in
Easy-Setup.
4. Keyboard Card
5. System Board

Battery Fuel-Gauge
does not go higher
than 90%.

Go to “Checking the Battery
Pack” on page 102 and see thenote.

Memory count (size)
appears different
from actual size.

Go to “Memory Checkout” onpage 97.

System configuration
does not match the
installed devices.

Go to “Checking the Installed
Devices List” on page 123.

System hangsintermittently.

Go to “Intermittent Problems”
on page 115.

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IBM Mobile Systems - ThinkPad HMM Volume 3

Peripheral Device–Related Symptoms
Symptom / Error

FRU / Action in Sequence

External display does
not work correctly.

1. See “External Display
Self-Test” in “Common
Devices Checkout” section.

Printer problems.

1.
2.
3.
4.

Serial or parallel port
device problems.

1. Device
2. Device Cable
3. System Board

Run Printer Self-test.
Parallel Port Device
Cable
System Board

Infrared–Related Symptoms
Symptom / Error

FRU / Action in Sequence

Unable tocommunicate using
the Infrared (IR) Port.

1. Make sure the setup for the
IR is correct.
2. Make sure there are no
fluorescent lights near thecomputer.
The computer may receive
optical interference from thefluorescent light.
3. Reseat the IR unit.
4. Run the advanced diagnostic
test. If an error occurs and a
FRU code is displayed,replace the parts shown by
the FRU code.

Other Symptoms
Symptom / Error

FRU / Action in Sequence

Errors occur only
when Port Replicator
is used.

See “Port Replicator Checkout”
in the “Common Devices
Checkout” section.

PCMCIA slot pin isdamaged.

PCMCIA Slots AssemblyNote
If you cannot find a symptom or error in this list andthe problem remains, see “Undetermined Problems”
on page 116.

Intermittent Problems
Intermittent system hang problems can be caused by avariety of reasons that have nothing to do with a hardware
defect, such as: cosmic radiation, electrostatic discharge,or software errors. FRU replacement should only beconsidered when a recurring problem exists.
When analyzing the intermittent problem, do the following:ThinkPad 365X, 365XD (2625)

115

1. Run the advanced diagnostic test for the systemboard in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by
the FRU code. Rerun the test to verify that no moreerrors exist.

Undetermined Problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices areincorrect, a short circuit is suspected, or the system is
inoperative. Follow the procedures below to isolate thefailing FRU (do not isolate non-defective FRUs).
Verify that all attached devices are supported by thecomputer.
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 100.)
1. Power off the computer.
2. Check the cables, wires, and connectors for shortcircuits and open circuits. Visually check them fordamage. If any problems are found, replace the
FRU.
3. Remove or disconnect all of the following devices.
a. Non-IBM devices
b. Devices attached to the expansion bus
connector
c. Printer, mouse, and other external devices
d. Battery packe. Hard disk drive
f. Internal diskette drive or CD-ROM drive
g. DIMMh. PC Cards
4. Power on the computer.
5. Determine if the problem has changed.
6. If the problem does not occur again, reconnect theremoved devices one at a time until you find thefailing FRU.
7. If the problem still remains, remove the backup
battery and wait for 3 minutes; then replace thebackup battery and set current date and time.
8. Determine if the problem has changed.
9. If the problem remains, replace the following FRUs
one at a time. Do not replace a non-defective FRU.
 Keyboard card
 LCD assembly System board
 CPU card

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IBM Mobile Systems - ThinkPad HMM Volume 3

Related Service ProceduresThis section provides information about the following:“Status Indicators”“How to Run the Diagnostics” on page 120“Diagnostic Error Codes” on page 121“Error Log” on page 121“Checking the Installed Devices List” on page 123“Password Combinations (POP, HDP, PAP)” on
page 124“How to Run a Low-Level Format” on page 124“PC Test Card LED” on page 124“Fn Key Combinations” on page 125“Keyboard/Auxiliary Input Device Checkout” onpage 98












Status Indicators
The system status LED indicators show the current
computer status in green and amber using symbols. The
following shows the location of each symbol and themeaning of each indicator.

1

2

3

4

5

6

7

8

9

10
SymbolColor

Meaning.1/ Battery
Power Status

Green

Indicates that sufficient
power remains for
operation. The battery
power status cannot be
determined when thebattery is not installed in thecomputer.

Blinking
Amber

Indicates that the battery
pack needs charging.
When the indicator starts
blinking amber, thecomputer beeps threetimes.

ThinkPad 365X, 365XD (2625)

117

Symbol

Color

Meaning.2/ Battery
Charging

Green

Indicates that the battery
pack is charging. When theindicator turns off, thebattery pack is fully
charged.

Off

Indicates that the battery
pack is charged (if the AC
Adapter is attached).

.3/ Diskette
Drive In Use

Amber

Turns on when data is
written to or read from theinternal diskette drive.

.4/ Hard Disk
In-UseAmber

Turns on when data is readfrom or written to the harddisk or internal CD-ROM.
Do not enter suspend modeor turn off the computerwhen this indicator is on.

.5/ Numeric
Lock

Green

When on, indicates thenumeric keypad on the
keyboard is enabled. You
enable and disable the
keypad by pressing andholding the Shift key. Thenpress the NumLk key.

.6/ Caps Lock

Green

When on, indicates theCaps Lock mode isenabled. All alphabetic
characters (A–Z) areentered in capital letterswithout pressing the Shift
key. You enable anddisable Caps Lock mode bypressing the Caps Lockkey.

.7/ Scroll Lock

Green

Alternately turns on and offeach time the Scroll Lockkey is pressed.
While this indicator is on,
the Arrow keys are used as
screen-scroll function keys.
In this state, the cursor
cannot be moved with theArrow keys. Not all
application programs
support this function.

118

IBM Mobile Systems - ThinkPad HMM Volume 3Symbol

Color

Meaning.8/ Suspend
Mode

Green

When on, indicates thecomputer is in suspend
mode.

Blinking
Green

Indicates that the computeris entering suspend modeor hibernation mode, or thecomputer is resuming
normal operation.

.9/ Power On

GreenShows that the computer isoperational. This indicatorturns on when the computeris turned on and thecomputer is not in suspendmode.

.1ð/ CD-ROM
Drive /
Diskette
Drive In-Use
LED

Amber

365XD: turns on when data
is read from a CD in the
CD-ROM drive. Do notenter suspend mode oreject the CD when thisindicator is on.

Amber

365X: turns on when data
is read from or written to adiskette in the internal
diskette drive. Do not entersuspend mode or eject thediskette when this indicatoris on.

ThinkPad 365X, 365XD (2625)

119

How to Run the Diagnostics
Use either the TrackPoint III or the cursor move keys tointeract with the tests. The Enter key works the same as
selecting the OK icon to reply OK.
Note
Make sure you have the following tools available
before starting the tests:Wrap Plug (P/N 72X8546) for the serial andparallel connector tests.
Wrap Plug (P/N 35G4680) for the PCMCIA tests.
Scratch diskette for the FDD1 or FDD2 tests.
Any data CD for the CD-ROM drive test.

1. Press and hold the F1 key; then power on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
2. Select Test and press Enter.
3. Select a device and press Enter to run the test.
4. The test progress screen appears.
5. OK appears when the test ends without any errors.
6. Start the Advanced Diagnostic test by pressing
Ctrl+A on the basic diagnostic menu screen.
7. Select Tool to install the tools.
8. Select a device, press the Spacebar and install thetool. Multiple devices can be selected by repeating
this step.
9.
10.
11.
12.

A √ mark appears beside the selected devices.
Select OK and press Enter if the selection is OK.
Select a device and press Enter to start the tests.
Select Test All to test all devices.
Select Loop Test to run the tests in a repeated loop.

A loop option menu appears in which a device loop or
all-device loop can be selected. Select a device andpress the Spacebar to select a device. Repeat thisstep to select multiple devices. Press Enter to startthe diagnostic loop. If no device is selected, alldevice tests are looped.
13. To exit the loop, keep pressing Ctrl+Pause until thetest exits. A beep sounds to notify that the exit
interrupt is sensed by the test program.

120

IBM Mobile Systems - ThinkPad HMM Volume 3Error Log
Diagnostic errors are printed on the printer that is attachedto the parallel port when the error is detected. The error isalso logged in the system memory.
Do the following to display the errors:
1.
2.
3.
4.
5.

End the test, if it is running.
Press Ctrl+A to select the advanced diagnostic mode.
Press Ctrl+E.
The error log appears.
To exit the screen, select the cancel icon or press
Esc.

The error log is not saved when the system is powered-off.

Diagnostic Error Codes
If an error is detected, the following appears:

Large X on the left side of the device icon.
Device ID (three digit)
Error code (two digit)
FRU code (four digit)

Start

Restart1

X

SystemBoard Memory Display

HDD FDD-1 PCMCIA

Parallel

2
SerialDSPCDROMInfrared

Audio

FDD-2

Exit

The device ID and error code are used to indicate thedetail portion of the FRU which caused the error. If
replacing a FRU does not correct the problem, see thedevice ID or error code from the previous failure. If they
have changed, the cause might be because the new FRU
is defective or that the FRU was incorrectly installed.

ThinkPad 365X, 365XD (2625)

121

Device ID: If an error is detected by the diagnostic
tests, a three-digit device ID is displayed. The device ID
indicates the suspected device.
Icon

SystemBoard

DeviceID

Suspected Device

001

System Board

003

Keyboard

007

Math Coprocessor

086

Pointing Device

002

Memory050

Display

017

Hard Disk Drive

006

Diskette Drive

066

External Diskette Drive

080

PCMCIA

009

Parallel

011

Serial215

CD-ROM103

Infrared port

150

Audio (ESS AudioDrive
Sound Chip)

Memory

Display

HDD

1
FDD-1

2
FDD-2

Parallel

SerialCDROMInfrared

Audio

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IBM Mobile Systems - ThinkPad HMM Volume 3

FRU Codes:

If an error is detected by the diagnostic
tests, a four-digit FRU code is displayed. The FRU code
indicates two suspected FRUs. Replace the FRU that isindicated by the two leftmost digits first, then replace the
FRU indicated by the two rightmost digits. No FRU is
assigned to code 00. If only one FRU is suspected, theother FRU code is filled with zeros. See the referenced
page before replacing the FRU.
FRU Code

FRU/Action

10

System Board

11

CPU Card

20

Memory(See “Memory Checkout” on page 97.)

30

Reserved

32

External Keyboard

33

External Mouse

40

LCD Assembly

45

External CRT

50

1. Reseat the Diskette Drive (FDD-1)
2. Diskette Drive (FDD-1)

51

1. Reseat the Diskette Drive (FDD-2)
2. Diskette Drive (FDD-2)

60

1. Reseat the Hard Disk Drive (HDD)
2. Hard Disk Drive (HDD)72

PCMCIA Slot Assembly

90

CD-ROM Drive

If the problem remains after replacement of the FRUs, go
to “Undetermined Problems” on page 116.

Checking the Installed Devices List
If a device is installed but the icon appears in a gray shaderather than a dark shade on the basic diagnostics screen,
the device is defective. Reseat the device connectors. If
the symptom remains, replace the device or the systemboard. If needed, adjust the contrast control to clearly
distinguish the shade of the icon.
If a device that is not installed appears in a dark shade (forexample, FDD-2 appears in a dark shade when no second
FDD is installed), do the following:
1. Replace the first device in the configuration, such as
the FDD-1.
2. If the problem remains, replace the system board.
The PCMCIA, Parallel, and Serial icons are always
displayed in a dark shade because the icons represent
subsystems of the system board and not the actualattachment of the devices.

ThinkPad 365X, 365XD (2625)

123

The FDD-1 icon represents the first drive in the system
configuration. Similarly, the FDD-2 icon represents thesecond drive, attached to the external diskette drive
connector or through a Port Replicator.

Password Combinations (POP, HDP,
PAP)
When the power-on password (POP), hard disk password(HDP), and supervisor password (PAP) are used, thefollowing situations may occur:When the POP is the same as the HDPThe POP prompt appears, but the HDP prompt does
not appear.

When the POP is not the same as the HDPThe POP and HDP prompts both appear.

When the PAP and HDP are enabled
When a PAP is used, the HDP is enabled
automatically, but no HDP prompt appears. The HDP
is set to the same password as the PAP.

How to Run a Low-Level Format
Do the following to format the hard disk.
Warning: Make sure the drive address to be formatted iscorrect. This procedure will erase all information on thedisk.
1. Power off the computer.
2. Insert the ThinkPad 750Ce hardware maintenancediskette into diskette drive A and power on thecomputer.
Note
You can use this maintenance diskette for theThinkPad 365X and 365XD computers.
3. Select Format the hard disk from the main menu.
4. Select the drive from the menu.
5. Follow the instructions on the screen.

PC Test Card LED
The green LED on the PC test card turns on when the
PCMCIA test is running. If the LED does not turn on,
check that the card is installed correctly by reseating thecard. If it still does not turn on after it is reseated, try
using another slot for the test. If the LED still does notturn on and the test fails, replace the FRU shown by the
diagnostic error code.

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IBM Mobile Systems - ThinkPad HMM Volume 3

Fn Key Combinations
The following table shows the Fn key and function key
combinations and their corresponding functions.
The Fn key works independently from the operating
system. The operating system obtains the status throughthe system management interface to control the system.
Fn +Description

F1

Reserved

F2

Fuel-Gauge display ON/OFF

F3Standby mode invocation

F4

Suspend mode invocation

F5

Reserved

F6

Reserved

F7

LCD/CRT display switching

F8

Reserved

F9

Reserved

F10

Reserved

F11Power management mode switching(Toggles between High Power, Auto, andCustomize settings.)

F12

Hibernation invocation

Page Up

Reserved

Page Down

Reserved

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125

Product Overview (365X, 365XD)
The following table shows an overview of the system
features.
FeatureDescription

ProcessorIntel Pentium 100 MHz,
120 MHz, or 133 MHz.

Bus Architecture

PCI

Memory (Standard)



8MB

Memory (Option)

8 MB, 16 MB, or 32 MB
DIMM card, maximum 40 MB(70ns, 144-pin EDO)CMOS RAM

114 bytes

SVGA Video

10.4-inch, 65,536 colors
800×600 pixel TFT color LCD
11.3-inch, 65,536 colors
800×600 pixel TFT color LCD
10.4-inch, 256 colors,
800×600 pixel DSTN color
LCD
11.3-inch, 256 colors,
800×600 pixel DSTN color
LCD






Diskette Drive(For 365X: built-in;for 365XD: external)

1.44MB (2-mode), 3.5-inch
1.44MB (3-mode), 3.5-inch,
for Japan

Hard Disk Drive







720MB, 2.5-inch, IDE
810MB, 2.5-inch, IDE
1.08GB, 2.5-inch, IDE
1.35GB, 2.5-inch, IDE
2.1GB, 2.5-inch, IDE

I/O Port

Headphone
Microphone
Stereo Line-In
Port Replicator

Audio





ESS AudioDrive Sound Chip
Internal speaker
Mechanical volume

CD-ROM(For 365XD: built-in)

5-inch, X4, X6, or X8 speed,
IDE interface

Infrared TransferRear IR port
IrDA** 1.0 compliant
115K bps

PCMCIA** Cards



One Type III
or two Type II

126

IBM Mobile Systems - ThinkPad HMM Volume 3

FRU Removals and Replacements
This section contains information about removals andreplacements.








Do not damage any part. Only certified and trained
personnel should service the computer.
The arrows in the “Removals and Replacements”
section show the direction of movement to remove a
FRU, or to turn a screw to release the FRU. The
arrows are marked in numeric order, in squarecallouts, to show the correct sequence of removal.
When other FRUs must be removed before removing
the failing FRU, they are listed at the top of the page.
To replace a FRU, reverse the removal procedureand follow any notes that pertain to replacement.
See “Locations” for internal cable connections andarrangement information.
When replacing a FRU, use the correct screw size asshown in the procedures.
Safety Notice 1: Translation on page 8

Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or othersmall parts, are in place and are not left loose inside
the computer. Verify this by shaking the computerand listening for rattling sounds. Metallic parts or
metal flakes can cause electrical short circuits.
Safety Notice 3: Translation on page 10
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack asrequired by local ordinances or regulations.
Safety Notice 8: Translation on page 14
Before removing any FRU, power-off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.

ThinkPad 365X, 365XD (2625)

127

1010 Rear Connector Door
Remove the center latch, then remove the rear connector
door by flexing it.

128

IBM Mobile Systems - ThinkPad HMM Volume 31020 Battery PackNote
Be careful that the computer does not fall backward
when the battery pack is removed.

1

ThinkPad 365X, 365XD (2625)

129

1025 Insulator Sheet
To access items under the keyboard other than the battery
pack, first raise the black insulator sheet as shown in the
figures.
To access the hard disk drive and DIMM slots, remove thethree screws and raise the middle section of the insulator
sheet, as shown in the figures.
The location of the screws is different according to themodel.

1
2

OR

130

IBM Mobile Systems - ThinkPad HMM Volume 3

Step

Screw Location (Quantity)

Length.1/

Insulator Sheet (2)M3 x 3mm.2/

HDD Bracket (1)M2 x 5mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

1311030 DIMM Card (If Installed)Battery Pack (1020)
Lift Insulator Sheet (1025)

3

2

Notch

1

1

132

IBM Mobile Systems - ThinkPad HMM Volume 31040 Diskette Drive / CD-ROM Drive

Battery Pack (1020)
Lift Insulator Sheet (1025)

Diskette Drive (Model 365X):
Note
Release the latch at the left side of the diskette drive,
as shown in the figure at .3/, and remove the diskette
drive.

Step

Screw Location (Quantity)

Length.1/

Diskette Drive (2)M2 x 5mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

133

CD-ROM Drive (Model 365XD)
Warning
Remove the CD-ROM drive exactly as shown in the
figure. Do not apply any extra force to the CD-ROM
drive when removing it.

1
2

3

Step

Screw Location (Quantity)

Length.1/

CD-ROM Drive (2)M2 x 8mm

Note: Make sure you use the correct screws when replacing.

134

IBM Mobile Systems - ThinkPad HMM Volume 31045 Base Cover Assembly / Keyboard
Latch



Battery Pack (1020)
Diskette Drive / CD-ROM Drive (1040)
Note

Push the keyboard latch from the outside of the basecover (.1/), then pull out the latch (.2/). Somepressure might be needed to push the latch.

2

1

When replacing:
Assemble the parts as shown below; then replace thelatch.

ThinkPad 365X, 365XD (2625)

135

1050 Hard Disk Drive
Battery Pack (1020)
Lift Insulator Sheet (1025)

Warning
Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physicalshock. Incorrect handling can cause damage andpermanent loss of data on the hard disk. Before
removing the hard disk drive, have the user make a
backup copy of all the information on the hard disk.
Never remove the hard disk drive while the system isoperating or is in suspend mode.
Notes
1. Before removing the hard disk drive, eject the
CD-ROM tray by by inserting a pin into themechanical eject hole on the front of the
CD-ROM drive. Pull the tray out fully.
Otherwise, the CD-ROM drive may be damaged
when you remove the hard disk drive.
2. Remove the hard disk drive exactly as shown in
the figure. Do not apply any extra force to thehard disk drive when removing it.
3. This procedure is the same for Model 365X andModel 365XD.

1

2
Eject hole

136

IBM Mobile Systems - ThinkPad HMM Volume 31060 Top Cover

Battery Pack (1020)

1
2

1
2

Step

Screw Location (Quantity)

Length.2/

Top Cover (2)M2 x 5mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

137

Note
When replacing the top cover, be careful not todamage the resume switch. Ensure that the resume
switch extends through the hole, as shown in the
figure.

When replacing

Resume switch
3138

IBM Mobile Systems - ThinkPad HMM Volume 31070 Keyboard Unit

Battery Pack (1020)
Top Cover (1060)

When replacing the keyboard unit, connect the keyboard
connector as shown in the figure; then replace the
keyboard.

3

Cable of the
TrackPoint

1

1

1

2

2

2

ThinkPad 365X, 365XD (2625)

1391080 LCD Assembly
Battery Pack (1020)
Insulator Sheet (1025)
Diskette Drive / CD-ROM Drive (1040)
Hard Disk Drive (1050)
Top Cover (1060)
Keyboard Unit (1070)








1

2
3
4

6

5

Step

Screw Location (Quantity)

Length.1/Base Cover (4)M3 x 5mm.2/

LCD Assembly (4)M2 x 5mm

140

IBM Mobile Systems - ThinkPad HMM Volume 3

Step

Screw Location (Quantity)

Length.3/

LCD Cable (1)M3 x 4mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

1411085 LCD Panel








Battery Pack (1020)
Insulator Sheet (1025)
Diskette Drive / CD-ROM Drive (1040)
Hard Disk Drive (1050)
Top Cover (1060)
Keyboard Unit (1070)
LCD Assembly (1080)

DSTN LCD Panel

1
2

4

3
2

*
*
Latches A

Latches B
Latches A

Latches B*Latches only for 11.3-inch LCDs (total 5 latches).
Step

Screw Location (Quantity)

Length.2/

LCD Front Cover (2)M3 x 6mm

Note: Make sure you use the correct screws when replacing.

142

IBM Mobile Systems - ThinkPad HMM Volume 3

5
7

5

8

**

6

**Part only for 10.4-inch LCDs.
Step

Screw Location (Quantity)

Length.5/

LCD Panel (4)M3 x 6mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

143

9

10
12

11
13
14
15

Step

Screw Location (Quantity)

Length.9/

LCD Cable (1)M3 x 6mm.11/

Inverter Card (1)ST2.9 x
4.5 mm
(10.4-inch
LCD)
M3 x 6mm(11.3-inch
LCD)

.13/

Right Hinge (1)M3 x 6mm.14/Hinge (2)M2 x 4mm

Note: Make sure you use the correct screws when replacing.

144

IBM Mobile Systems - ThinkPad HMM Volume 3

15

ThinkPad 365X, 365XD (2625)

145

TFT 10.4-inch LCD Panel (A)

TFT 10.4 (A) P/N 46H8093 69H7947 82H8039

Note: You can replace the entire 10.4-inch TFT LCD unit(A) with the entire LCD unit (B), or vice versa. But
you cannot replace parts of (A) with parts of (B), or
vice versa.

1
2
4
3
2

Latches A

Latches B
Latches A

Latches B

Step

Screw Location (Quantity)

Length.2/

LCD Front Cover (2)M3 x 6mm

Note: Make sure you use the correct screws when replacing.

146

IBM Mobile Systems - ThinkPad HMM Volume 3

6

8
5
5
6

7

Step

Screw Location (Quantity)

Length.6/

LCD Panel (4)M3 x 6mm

Note: Make sure you use the correct screws when replacing.

9

10
12

11
13
14
15

ThinkPad 365X, 365XD (2625)

147

Step

Screw Location (Quantity)

Length.9/

LCD Cable (1)M3 x 6mm.11/

Inverter Card (1)ST2.9 x
4.5 mm.13/

Right Hinge (1)M3 x 6mm.14/Hinge (2)M2 x 4mm

Note: Make sure you use the correct screws when replacing.

When replacing:
When replacing the LCD cable, replace the copper
tape and gasket top as shown below.

Gasket Top

15

148

IBM Mobile Systems - ThinkPad HMM Volume 3

TFT 10.4-inch LCD Panel (B)

TFT 10.4 (B) P/N 83H5349 83H5350

Note: You can replace the entire 10.4-inch TFT LCD unit(A) with the entire LCD unit (B), or vice versa. But
you cannot replace parts of (A) with parts of (B), or
vice versa.

1
2
4
3
2

Latches A

Latches B
Latches B

Latches A

Step

Screw Location (Quantity)

Length.2/

LCD Front Cover (2)M3 x 6mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

149

5
7

5

6

Step

Screw Location (Quantity)

Length.5/

LCD Panel (4)M3 x 6mm

Note: Make sure you use the correct screws when replacing.

150

IBM Mobile Systems - ThinkPad HMM Volume 3

9
11

8

10
12
13
14

Step

Screw Location (Quantity)

Length.8/

LCD Cable (1)M3 x 6mm.1ð/Inverter Card (1)ST2.9 x
4.5 mm.12/

Right Hinge (1)M3 x 6mm.13/Hinge (2)M2 x 4mm

Note: Make sure you use the correct screws when replacing.

15

ThinkPad 365X, 365XD (2625)

151

TFT 11.3-inch LCD Panel

1
2
4
3
2

Latches A

Latches B
Latches A

Latches B

Step

Screw Location (Quantity)

Length.2/

LCD Front Cover (2)M3 x 6mm

Note: Make sure you use the correct screws when replacing.

152

IBM Mobile Systems - ThinkPad HMM Volume 3

5
8

5
7

6

Step

Screw Location (Quantity)

Length.5/

LCD Panel (4)M3 x 6mm

Note: Make sure you use the correct screws when replacing.

When replacing:
When replacing the LCD panel, glue the rear foam on
the rear of the LCD as shown below.

ThinkPad 365X, 365XD (2625)

153

9

10
12

11
13
14
15

Step

Screw Location (Quantity)

Length.9/

LCD Cable (1)M3 x 6mm.11/

Inverter Card (1)M3 x 6mm.13/

Right Hinge (1)M3 x 6mm.14/Hinge (2)M2 x 4mm

Note: Make sure you use the correct screws when replacing.

15

154

IBM Mobile Systems - ThinkPad HMM Volume 31090 Indicator Card









Battery Pack (1020)
Insulator Sheet (1025)
Diskette Drive / CD-ROM Drive (1040)
Hard Disk Drive (1050)
Top Cover (1060)
Keyboard Unit (1070)
LCD Assembly (1080)
LCD Panel (1085)

1
3

1

2

Step

Screw Location (Quantity)

Length.2/

Indicator Card (2)M2 x 4mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

155

1100 Volume Switch / Speaker
Assembly
Battery Pack (1020)
Insulator Sheet (1025)
Diskette Drive / CD-ROM Drive (1040)
Hard Disk Drive (1050)
Top Cover (1060)
Keyboard Unit (1070)
LCD Assembly (1080)
LCD Panel (1085)
Indicator Card (1090)











2
4
1
3

5

Step

Screw Location (Quantity)

Length.2/

Speaker Assembly (1)M2 x 4mm.3/

Speaker Assembly (2)M2 x 5mm

Note: Make sure you use the correct screws when replacing.

156

IBM Mobile Systems - ThinkPad HMM Volume 31110 Keyboard Card / Cable










Battery Pack (1020)
Insulator Sheet (1025)
Diskette Drive / CD-ROM Drive (1040)
Hard Disk Drive (1050)
Top Cover (1060)
Keyboard Unit (1070)
LCD Assembly (1080)
LCD Panel (1085)
Indicator Card (1090)

1
3

2

Step

Screw Location (Quantity)

Length.1/

Keyboard Card (1)M2 x 5mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

157

Note
To remove the cable, do steps 6 and 7.
When reinstalling the cable, make sure the cable end withthe letter P is installed in the system board connector. The
end with the letter K should be installed in the keyboard
card connector. (The letters should be facing you when
you install the cable from the front of the machine.)

K

P

7
5

6

4

158

IBM Mobile Systems - ThinkPad HMM Volume 31120 CPU Card and System Board
Card












Battery Pack (1020)
Insulator Sheet (1025)
Diskette Drive / CD-ROM Drive (1040)
Hard Disk Drive (1050)
Top Cover (1060)
Keyboard Unit (1070)
LCD Assembly (1080)
LCD Panel (1085)
Indicator Card (1090)
Volume Switch / Speaker (1100)
Keyboard Card (1110)

To remove the system board and CPU Card:

1

2

3

Step

Screw Location (Quantity)

Length.1/

CPU Card to System Board (1)M2 x 4mm.2/

CPU Card to System Board (2)M2 x 5mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

159

Note
The system board fits exactly in place in the basecover. Align the system board carefully whenremoving or reinstalling. Do not force it. Be careful
not to damage the input jacks on the left side of thecomputer or the PCMCIA slots on the right side of thecomputer.

5
4

4
7

7

6

160

IBM Mobile Systems - ThinkPad HMM Volume 3

To remove the CPU card from the system board:

Rear view

1
2

3
4

Connector

Be Careful
When connecting the CPU card and the system board
again, use the procedures exactly as shown in the
figures. Make sure that the two CPU card connectors
are connected properly. If these connectors are notproperly connected, the computer will not work.
Step

Screw Location (Quantity)

Length.1/

System Board (2)M2 x 4mm.2/

System Board (3)M2 x 4mm.3/

System Board (1)M2 x 4mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

161

1130 System Board / PCMCIA Slot
Assembly
Battery Pack (1020)
Insulator Sheet (1025)
Diskette Drive / CD-ROM Drive (1040)
Hard Disk Drive (1050)
Top Cover (1060)
Keyboard Unit (1070)
LCD Assembly (1080)
LCD Panel (1085)
Indicator Card (1090)
Volume Switch / Speaker (1100)
Keyboard Card (1110)
CPU Card (1120)














Be CarefulConnect the CPU card using the procedures
exactly as shown in the figures. Make sure thatthe two CPU card connectors are connected
properly. If these connectors are not connected,
you cannot power on the computer.
Do not apply any extra force to the shaded
area of the CPU card when connecting.
Notes

1. The system unit serial number must be restored
when the system board is replaced. To restore
the system unit serial number, select the option“Set system identification” on the maintenancediskette. The EEPROM on the system board
contains the vital product data (VPD); that is, thesystem unit serial number, system board system
number, and other computer-unique data.
2. Do not power off the computer when restoring
the VPD. The system unit serial number label is
attached to the base cover.
3. Before removing and replacing the system board,
make sure that the PCMCIA cards are removed
and the eject levers are not sticking out.
4. Do not pull the PCMCIA slot assembly whileremoving the system board.
5. When handling the PCMCIA slot assembly, be
careful not to disassemble any part of it. The slot
assembly is not solidly fixed when it is removed
from the system board or the FRU.

162

IBM Mobile Systems - ThinkPad HMM Volume 3

1

7

5
6

3
2

4

10
Connector

8

9

Step

Screw Location (Quantity)

Length.2/

System Board (2)M2.5 x
3 mm.3/System Board (1)M2.5 x
4 mm.4/System Board (6)

Hex
Stud

.5/

System Board (2)M2 x 4mm.8/

PCMCIA Slot (2)M2 x 4mm
and M2nut.9/

PCMCIA Slot (2)

M2 x
14 mm

Note: Make sure you use the correct screws when replacing.

ThinkPad 365X, 365XD (2625)

163

Locations
Front View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/
.11/
.12/
.13/
.14/
.15/
.16/
.17/
.18/

LCD
Contrast Control
Brightness Control
Indicator Panel
Built-in Microphone
LCD Suspend Switch
PC Card Eject Buttons
PCMCIA Slots
Locking Device Keyhole
Release Latches
Personalization Name Plate
TrackPoint III
Click Buttons
CD-ROM (365XD) / Diskette Drive (365X)
Fn KeyFunction Keys
Speaker Volume Control
Speaker

18

1

17
16

2

15

3

4

6

14
13

5

9

12

10
11

7
8

164

IBM Mobile Systems - ThinkPad HMM Volume 3

Inside View
.1/ Keyboard Lock
.2/ Battery Pack
.3/ Optional Memory Expansion Module.4/ CD-ROM Drive (365XD),
Diskette Drive (365X).5/ Mechanical CD-ROM eject (365XD).6/ CD-ROM Eject Button (365XD),
FDD Bezel (365X).7/ Cosmetic ShieldThinkPad 365X, 365XD (2625)

165

Bottom View
.1/ Legs

166

IBM Mobile Systems - ThinkPad HMM Volume 3

Rear View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/
.11/
.12/
.13/

Rear Connector Door
Connector for Port Replicator
IR PortExternal Input Device Connector
External Display Connector
Serial Connector
Parallel Connector
External Diskette Drive Connector
Power JackLine-out/Headphone JackLine-in Jack
Microphone JackPower Switch

11

12

13

1

3

2

4

5

6

7

8

ThinkPad 365X, 365XD (2625)

9

167

Power-On Password Jumper Pads
The power-on password jumper pads are found on thesystem board near the backup battery, as shown in the
figures.

1

2

1. Push out the door at .1/.
2. See “How to Disable the Power-On Password:” onpage 95 to cancel the power-on password. Apply theshort across the Power-On Password Jumper Pads at.2/.
Warning
When using a metal tool to short the two jumper
pads, make sure the metal tool does not touch
any metal parts other than the two jumper pads.

168

IBM Mobile Systems - ThinkPad HMM Volume 3NotesThinkPad 365X, 365XD (2625)

169

Parts Listing 365X, 365XD (2625)
Model 365X - Diskette Drive170

IBM Mobile Systems - ThinkPad HMM Volume 3

Index
1
2
3
4
5

NS
6
7

8

9
10
11
12
13
14
15
16
17
18
19
20
21
NS
NS

NS

NS

System Unit (365X)
LCD Panel — See page 174.
Top Cover
Keyboard — See page 178.
Battery Pack
Hard Disk Drive (720 MB)
Order either of the below 810MB hard drives
Hard Disk Drive (810 MB)
Hard Disk Drive (810 MB)
Hard Disk Drive (1.08 GB)
Hard Disk Drive (1.35 GB)
Bracket Kit (HDD)
Keyboard Card Assembly
Miscellaneous Cable Kit:
Keyboard Card to System Board
FDD to System Board (365X)
CPU Card Assembly (P100)
CPU Card Assembly (P120)
CPU Card Assembly (P133)
System Board Card Assemblywith AudioPort Replicator Cap
Base Cover Assembly
PCMCIA Card Slot Cover
Keyboard Latch (L/R)
FDD Bezel
Power Switch — See Misc. Base Parts
Rear I/O Connector CoverSpeaker/Volume/Cable Assembly
Diskette Drive (2 mode)
Diskette Drive (3 mode; Japan)
Cosmetic Shield
TrackPoint III Cap set
LED Indicator Card
Real-Time Clock Backup Battery
Misc. Base Parts:
Cover Support Bracket, Screw Caps,
Power Switch Knob, Power Switch Bracket,
EMI Bracket, EMI Top Plate,
System Insulator, Base Insulator,
Base Right Clip
Misc. Logic Parts:
CPU Spacer, CPU Heat Sink
I/O Connector Bracket,
Port Replicator Bracket
Foot (Tilt)

ThinkPad 365X, 365XD (2625)

69H7919
41H7438
85G8371
07H0392
39H2220
39H222173H6419
74H0238
69H7913

74H0574
69H7912
74H0237
82H8162
83H7117
69H7906
69H7903
69H7904
82H8177
83H5275
69H7905
74H0573
69H7926
74H0232
82H8172
84G6536
69H7914
46H4132

69H7916

69H7915
74H0571

171

Model 365XD - CD-ROM Drive

172

IBM Mobile Systems - ThinkPad HMM Volume 3

Index
1
2
3
4
5

NS
6
7

8

9
10
11
12
13
14
15
16
17

18
19
20
NS
NS

NS

NS

System Unit (365XD)
LCD Panel — See page 174.
Top Cover
Keyboard — See page 178.
Battery Pack
Hard Disk Drive (720 MB)
Order either of the below 810MB hard drives
Hard Disk Drive (810 MB)
Hard Disk Drive (810 MB)
Hard Disk Drive (1.08 GB)
Hard Disk Drive (1.35 GB)
Bracket Kit (HDD)
Keyboard Card Assembly
Miscellaneous Cable Kit:
Keyboard Card to System Board
CD-ROM to system board (365XD)
CPU Card Assembly (P100)
CPU Card Assembly (P120)
CPU Card Assembly (P133)
System Board Card Assemblywith AudioPort Replicator Cap
Base Cover Assembly
PCMCIA Card Slot Cover
Keyboard Latch (L/R)
Power Switch — See Misc. Base Parts
Rear I/O Connector CoverSpeaker/Volume/Cable Assembly
CD-ROM Drive (X4 Speed)
CD-ROM Drive (X6 Speed)
CD-ROM Drive (X8 Speed)
Cosmetic Shield
TrackPoint III Cap set
LED Indicator Card
Real-Time Clock Backup Battery
Miscellaneous Base Parts:
Cover Support Bracket, Screw Caps,
Power Switch Knob, Power Switch Bracket,
EMI Bracket, EMI Top Plate,
System Insulator, Base Insulator,
Base Right Clip
Miscellaneous Logic Parts:
CPU Spacer, CPU Heat Sink
I/O Connector Bracket,
Port Replicator Bracket
Foot (Tilt)

ThinkPad 365X, 365XD (2625)

69H7919
41H7438
85G8371
07H0392
39H2220
39H222173H6419
74H0238
69H7913

74H0574
69H7912
74H0237
82H8162
83H7117
69H7906
69H7903
69H7904
82H8177
69H7905
74H0573
69H7925
82H8160
82H8173
82H8172
84G6536
69H7914
46H4132

69H7916

69H7915
74H0571173

Model 365X/365XD - TFT LCD Panel

7
1

TinkPad

IBM

2
3

6

4

5

*

*
2

* Parts only for the 11.3-inch TFT.

174

IBM Mobile Systems - ThinkPad HMM Volume 3

TFT LCD FRU Parts List10.4-inch (A) P/N 46H8093 69H7947 82H8039
10.4-inch (B) P/N 83H5349 83H5350
Notes
1. You can distinguish the 10.4-inch TFT LCD unit(A) or (B) by the label sealed on the inside of its
hinge cover assembly (1 in the parts list).
2. You can replace the entire 10.4-inch TFT LCD
unit (A) with the entire LCD unit (B), or viceversa. But you cannot replace parts of (A) withparts of (B), or vice versa.
3. Model-Gxx contains only 10.4-inch (B) type.

1

2
3
4
5
6
7

System Unit
Hinge Cover Assembly
FDD
CD-ROMLCD Cover Kit
LCD Cable Kit
LCD Unit
Hinges (Right/Left)– See LCD Misc. Parts
Inverter Card
Slide Knob
– See LCD Misc. Parts
LCD Misc. Parts:
LCD Slide Knob,LCD Foam Support,
Right Hinge,
Left Hinge,
Cable Clamp,
Back Gasket,
Top Gasket,
Copper TFT Tape,
Rubber Lid,
Front Logo,
Rear Logo

10.4 (A)

10.4 (B)

11.3

74H0617
74H0618
74H0582
74H0627
74H0621

74H0617
74H0618
83H5355
83H5356
83H5357

74H0617
74H0618
82H8165
82H8169
82H8166

69H7959 83H5358 82H8167

74H0619 74H0619 74H0619

ThinkPad 365X, 365XD (2625)

175

Model 365X/365XD - DSTN LCD Panel

7
1

2
6

4

5

3

*

2

* Part only for the 10.4-inch LCDs.

176

IBM Mobile Systems - ThinkPad HMM Volume 3

DSTN LCD FRU Parts List

10.4-inch DSTN LCD
Index
1
2
3
4
5
6
7

System Unit
Hinge Cover Assembly FDD
Hinge Cover Assembly CD-ROM
LCD Cover Kit
LCD Cable Kit
LCD Unit
Hinges (Right/Left) — See LCD Misc. Parts
Inverter Card
Slide Knob — See LCD Misc. Parts

74H0617
74H0618
74H0581
74H0626
74H0620
69H7958

11.3-inch DSTN LCD
Index
1
2
3
4
5
6
7

System Unit
Hinge Cover Assembly FDD
Hinge Cover Assembly CD-ROM
LCD Cover Kit
LCD Cable Kit
LCD Unit
Hinges (Right/Left) — See LCD Misc. Parts
Inverter Card
Slide Knob — See LCD Misc. Parts

74H0617
74H0618
74H0583
74H0628
74H0622
69H7961

LCD Miscellaneous Parts
LCD Slide Knob, LCD Foam Support,
Right Hinge, Left Hinge, Cable Clamp,
Back Gasket, Top Gasket,
Copper TFT Tape, Rubber Lid,
Front Logo, Rear Logo

74H0619

ThinkPad 365X, 365XD (2625)

177

Keyboard Unit
ArabicBelgianCanadian French
Czech
DanishDutch
FrenchGerman
Greek
Hungary
Hebrew
ItalianJapanese
Latin Spanish
Norwegian
PolandPortuguese
Russian
SpanishSlovenia /Croatia / Bosnia
Swedish / Finnish
Swiss
Turkish
U.K. English
U.S. English

178

42H3936
42H3937
42H3938
73H7241
42H3939
42H3940
42H3942
42H3943
42H3944
73H7242
42H3945
42H3946
42H3947
42H3948
42H3949
73H7243
42H3950
42H3956
42H3951
73H7244
42H3941
75H7562
42H3954
42H3955
41H9789

IBM Mobile Systems - ThinkPad HMM Volume 3

Common/Option Parts List
Miscellaneous Parts
Screw Kit
Includes (Type) (Quantity):
M2 x 4 (Bind Head) (15)
M2 x 5 (Pan Head) (11)M2 x 4 with washer (Pan Head) (2)M2 x 8 (Pan Head) (2)M2.5 x 4 (Bind Head) (4)M2.5 x 3 (3.5D Pan Head) (2)M2.5 x 4 with washer (Bind Head) (3)M3 x 3 (Cross Slotted Pan Head) (4)M3 x 4 (Pan Head) (2)M3 x 4 (Flat Head) (4)M3 x 6 (Pan Head) (6)M3 x 6 with washer (Pan Head) (2)Hex Stud M2.5 Short length (6)Screw ST2.9 x 4.5 (Pan Head) (1)M2 x 5 (Bind Head) (4)M2 x 5 (Cross Slotted Pan Head) (2)M3 x 5 (Pan Head) (6)74H0229

ThinkPad 365X, 365XD (2625)

179

Options
Notes:
1. When you replace the AC Adapter with a new one,use the one for the country where the computer isused, even if the computer is from different country.
2. The warranty for the system unit does not apply to all
options.
720MB Hard Disk Drive Assembly
810MB Hard Disk Drive Assembly
810MB Hard Disk Drive Assembly
1.08GB Hard Disk Drive Assembly
1.35GB Hard Disk Drive Assembly
2.1GB Hard Disk Drive Assembly
AC Adapter
35W Universal
35W Japan only
Slim AC Adapter
3 Prong
2 Prong
Port Replicator Base AssemblyPort Replicator Cable CoverMini Replicator Assembly
DIMM 8MB
DIMM 16MB
DIMM 32MB
External Diskette Drive (2 mode)
External Diskette Drive (3 mode-Japan)
External Diskette Drive Cable
Battery Pack
CD-ROM Drive (x4 speed)
CD-ROM Drive (x6 speed)
CD-ROM Drive (x8 speed)

180

85G8371
39H2220
07H0392
39H222173H6419
73H6427
85G6698
85G6700
85G6736
85G6738
41H7457
41H7458
75H7528
42H2767
42H2768
42H2769
10H4056
10H4055
74H0219
41H7438
69H7925
82H8160
82H8173

IBM Mobile Systems - ThinkPad HMM Volume 3

Numeric Keypad
BelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
Icelandic
ItalianJapanese
Norwegian
SpanishSwedish / Finnish
Swiss / French
Swiss / German
Turkish
U.K. English
U.S. English

95F5741
95F5466
95F5467
95F5467
95F6313
95F6314
95F5467
95F5741
95F5467
95F6316
79F6401
95F5467
95F6315
95F5468
95F5711
95F5715
95F5467
95F5741
95F5741

Black Keypad
FrenchGermanItalianSwedish
U.K. English
NorwayU.S. English

84G6286
84G6280
84G6292
84G6304
84G6298
84G6310
84G2530

Black Keyboard
FrenchGermanItalianSwedish
U.K. English
NorwayU.S. English

84G6285
84G6279
84G6291
84G6303
84G6297
84G6309
84G2529

Accessories
Keyboard/Mouse Cable

54G0444

ThinkPad 365X, 365XD (2625)

181

Tools
Tri-Connector Wrap PlugPC Test Card
Screwdriver Kit
ThinkPad 750Ce
Hardware Maintenance Diskette(This diskette is used for
365X and 365XD also.)

72X8546
35G4703
95F3598
82G3891

Power Cords
1

6

2

7

3

8

4

9

5

10

Warning:
Use the power cord certified for your country.
1
2
3
4
5
6
7
8
9
10

182

Colombia, U.S., Venezuela
Japan, 2-pin
Hong Kong, Singapore, U.K.
France, Germany, Spain
Italy
Australia, New Zealand
Denmark
IsraelBangladesh, Pakistan, Sri Lanka,
South Africa
Switzerland
Thailand

25H2207
85G6665
25H2215
25H2209
25H2223
25H2205
25H2211
25H2225
25H2213
25H2221
25H2219

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 380, 380D, 385, 385D
(2635)
Read This First . . . . . . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . .
Memory Checkout . . . . . . . . . . . . . .
System Board Checkout . . . . . . . . . . .
Keyboard/Auxiliary Input Device Checkout . . .
TrackPoint III Checkout. . . . . . . . . . .
Diskette Drive Test
. . . . . . . . . . . . .
Status Indicator Checkout. . . . . . . . . .
Power Systems Checkout. . . . . . . . . .
Port Replicator Checkout . . . . . . . . . . .
Power Management Features. . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . .
Numeric Error Codes . . . . . . . . . . . . .
Diagnostic Error Codes. . . . . . . . . . .
Beep Symptoms . . . . . . . . . . . . . . .
No Beep Symptoms . . . . . . . . . . . . .
LCD-Related Symptoms. . . . . . . . . . .
Keyboard/TrackPoint III-Related Symptoms. .
Indicator-Related Symptoms. . . . . . . . .
Power-Related Symptoms. . . . . . . . . .
Function/Audio-Related Symptoms. . . . . .
Peripheral-Device-Related Symptoms . . . . .
Infrared-Related Symptoms . . . . . . . . . .
Other Symptoms . . . . . . . . . . . . . . .
Intermittent Problems. . . . . . . . . . . .
Undetermined Problems. . . . . . . . . . .
Related Service Procedures . . . . . . . . . . .
Status Indicators . . . . . . . . . . . . . . .
How to Run the Diagnostics. . . . . . . . .
Error Log
. . . . . . . . . . . . . . . . . .
Checking the Installed Devices List . . . . . .
How to Run a Low-Level Format. . . . . . .
PC Test Card LED . . . . . . . . . . . . . .
Fn Key Combinations. . . . . . . . . . . .
Product Overview (380, 380D, 385, 385D) . . . .
FRU Removals and Replacements . . . . . . . .
1010 Battery Pack
. . . . . . . . . . . . .
1020 DIMM Card / Backup Battery . . . . . .
1030 Keyboard Unit . . . . . . . . . . . . .
1040 CD-ROM/FDD Assembly . . . . . . . .
1050 Speaker / Microphone . . . . . . . . .
1060 Hard Disk Drive . . . . . . . . . . . .
1070 LCD Unit
. . . . . . . . . . . . . . .
1080 System Board Assembly . . . . . . . .
1090 Sub Card . . . . . . . . . . . . . . .
1100 PCMCIA Slot
. . . . . . . . . . . . .
1110 Fan . . . . . . . . . . . . . . . . . .
1120 LCD Front Cover. . . . . . . . . . .
1130 LCD Panel. . . . . . . . . . . . . .
1140 LCD Inverter Card . . . . . . . . . . .

185
189
190
191
191
192
192
193
193
196
197
199
199
202
204
205
205
206
206
207
207
208
208
208
209
209
210
210
212
213
213
213
214
214
215
216
217
218
219
221
225
226
228
231
233
234
236
238
240
243

 Copyright IBM Corp. 1997183

1150 LCD Misc. Parts . . . . . . . . . . . .
DSTN LCD Hinges/Latches . . . . . . . . . .
LCD Cable. . . . . . . . . . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . .
Front View
. . . . . . . . . . . . . . . . .
Rear View . . . . . . . . . . . . . . . . . .
Bottom View . . . . . . . . . . . . . . . . .
Parts Listing 380/385 (2635). . . . . . . . . .
Common/Option Parts List . . . . . . . . . .

184

244
244
247
249
249
250
251
252
258

IBM Mobile Systems - ThinkPad HMM Volume 3

Read This First
Before you go to the checkout guide, be sure to read thissection.
Important Notes










Only certified trained personnel should
service the computer.
Read FRU service procedures before replacing
any FRUs.
Be extremely careful during write operations
such as copying, saving, or formatting.
Drives in the computer that you are servicing
might have been rearranged or the drive startup
sequence might have been altered. If you selectan incorrect drive, data or programs can be
written over.
Replace FRUs only for the correct model.
When you replace the FRU, make sure themodel of the machine and FRU part number are
correct by referring to the part list.
FRUs should not be replaced because of asingle, unreproducible failure. Single failures
can occur from a variety of reasons that havenothing to do with a hardware defect such as:cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should beconsidered only when a recurring problem exists.
If this is suspected, clear the error log and run
the test again. Do not replace any FRUs if log
errors do not reappear.
Be careful not to replace a nondefective FRU.

How to Use Error Messages:

Use the error
codes displayed on the screen to diagnose failures. If
more than one error code is displayed, begin the diagnosis
with the first error code. The cause of the first error code
can result in false error codes being displayed. If no error
code is displayed, see if the error symptom is listed in the“Symptom-to-FRU Index” on page 199.

Port Replicator Problems: If you suspect a
problem with the Port Replicator, see “Port Replicator
Checkout” on page 196.
How to Diagnose Multiple FRUs: When theadapter or device has more than one FRU, the error code
could be caused by either FRU. Before replacing multiple
FRUs, try removing or exchanging each FRU, one by one
in the designated sequence, to see if the symptoms
change.

ThinkPad 380, 380D, 385, 385D (2635)

185

What to Do First:

The servicer must include thefollowing in the parts exchange form or parts return form
that is attached to the returned FRU:
1.
2.
3.
4.
5.
6.
7.
8.
9.

Name and phone number of servicer
Date of service
Date when part failed
Date of purchase
Failure symptoms, error codes appearing on
display, and beep symptoms
Procedure index and page number in which
failing FRU was detected
Failing FRU name and part number
Machine type, model number, and serial number
Customer's name and address

Before checking problems with the computer, determine
whether the damage is covered under the warranty byreferring to the following:
Warranty Note
During the warranty period, the customer may be
responsible for repair costs if the computer damage
was caused by misuse, accident, modification,
unsuitable physical or operating environment, or
improper maintenance by the customer. The following
list provides some common items that are not covered
under warranty and some symptoms that may indicate
the system was subjected to stresses beyond normaluse.

The following is not covered under warranty:















186

LCD panel cracked by applying excessive force
or by being dropped
Scratched (cosmetic) parts
Cracked or broken plastic parts, broken latches,broken pins, or broken connectors caused byexcessive force
Damage caused by liquid spilled into the system
Damage caused by improperly inserting a
PCMCIA card or installation of an incompatible
card
Damage caused by foreign material in the FDD
Diskette drive damage caused by pressing thediskette drive cover or inserting diskettes withmultiple labels
Damaged or bent diskette eject button
CD-ROM drive damage caused by excessive
forces shock, or by being dropped
Fuses blown by attaching a nonsupported device
Forgotten computer password (making thecomputer unusable).

IBM Mobile Systems - ThinkPad HMM Volume 3

If the following symptoms are present, they may
indicate damage caused by nonwarranted activity:Missing parts may be a symptom of unauthorized
service or modification.
HDD spindles can become noisy if subjected toexcessive force or by being dropped.
I9990303 errors can be caused by exposure tostrong magnetic fields.

:h4/.How to Disable the Power-On Password:
Important
This information is not available in this online HMM
format. See your IBM Servicer or IBM Authorized
Dealer for this procedure.

ThinkPad 380, 380D, 385, 385D (2635)

187

Power Shutdown Switch:

The power shutdown
switch resets the system regardless of the microcode
status and forces the power off. Use this push button to
power-off when power is not completely off or the
microcode is in a hung state.

188

IBM Mobile Systems - ThinkPad HMM Volume 3

Checkout Guide
Use the following procedure as a guide for computer
problems.
Note: The diagnostic tests are intended to test only IBM
products. Non-IBM products, prototype cards, ormodified options can give false errors and invalid
system responses.
1. Obtain the failing symptoms in as much detail as
possible.
2. Verify the symptoms by attempting to re-create thefailure by running the diagnostic test or by repeating
the same operation.
Note: To run the diagnostics, refer to “How to Run
the Diagnostics” on page 212.
3. Use the following table with the verified symptom todetermine which page to go to. Search thesymptoms column and find the description that best
matches your symptom; then go to the page shown in
the “Go to” column.
Symptoms (Verified)

Go toPower failure. (Thepower indicator does not
go on or stay on.)“Power Systems
Checkout” on page 193.

POST does notcomplete. No beeps or
error codes are
displayed.

“Symptom-to-FRU
Index” on page 199,
and then use the No
Beep Symptoms table.

POST beeps, but noerror codes are
displayed.

“Symptom-to-FRU
Index” on page 199,
and then use the Beep
Symptoms table.

POST detected an error
and displayed numericerror codes.

“Symptom-to-FRU
Index” on page 199,
and then use the
Numeric Error Codes
table.

The diagnostic test
detected an error anddisplayed an FRU code.

“How to Run the
Diagnostics” onpage 212.

The configuration is not
the same as theinstalled devices.

“Checking the Installed
Devices List” onpage 213.

Other symptoms (suchas LCD display
problems).

“Symptom-to-FRU
Index” on page 199,
and then use the Other
Symptoms table.

ThinkPad 380, 380D, 385, 385D (2635)

189

Symptoms (Verified)

Go to

Symptoms cannot be
re-created. (Intermittent
problems).

Use the customer
reported symptoms and
go to “Symptom-to-FRU
Index” on page 199.

Memory Checkout
DIMMs are available for increasing memory capacity.
DIMM

Displayed ValueNo DIMM installed

16000KB

8MB

24192KB

16MB

32384KB

32MB

48768KB

Memory errors might stop system operations, show error
messages on the screen, or hang the system.
Use the following procedure to isolate memory problems.
Note: Make sure that the DIMM is fully installed into theconnector. A loose connection can cause an error.
1. Power off the computer and remove the DIMM fromits slot (if installed).
2. Press and hold the F1 key; then power on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
3. Select Test and press Enter.
4. Select Memory and press Enter to run the memory
test on base memory. If an error appears, replace
the system board.
5. Power off the computer and reinstall the DIMM; thenpower on the computer. Verify the memory size; thentest the memory. If an error appears, replace theDIMM.
If memory problems occur intermittently, use the loop
option to repeat the test. When the test detects an error,
an error log is printed on the printer connected to theparallel port. See “Error Log” on page 213 for more
information.

System Programs in Flash Memory: System setup
programs and diagnostic tests are stored in flash memory.

Flash Memory Update: A flash memory update isrequired for the following conditions:

New versions of system programs.
New features or options are added.

To update the flash memory, do the following:
1. Get the appropriate diskette containing the update.

190

IBM Mobile Systems - ThinkPad HMM Volume 3

2. Insert the System Program Service Diskette into
drive A and power on the computer.
3. Select Update system programs from the menu.

System Board Checkout
The processing functions are performed by the systemboard. When a numeric code calls the system board as a
FRU, use the following procedure to isolate the problem.
1. Run the system board test to verify the symptom.
This test verifies the system board. If no error is
detected, return to “Checkout Guide” on page 189.
2. If FRU code 10 appears, replace the system board.
3. Rerun the test to verify the fix.
If this procedure does not correct the problem, go to“Undetermined Problems” on page 209.

Keyboard/Auxiliary Input Device
Checkout
Remove the external keyboard if the internal keyboard is tobe tested.
If the internal keyboard does not work or an unexpectedcharacter appears, make sure that the flexible cable
extending from the keyboard is correctly seated in theconnector on the subcard.
If the keyboard cable connection is correct, run the
keyboard test by doing the following:
1. Go to the diagnostic menu screen by selecting Testin the Easy-Setup screen.
2. Press Ctrl+A. The ThinkPad FRU Connections
screen appears. (If the Ctrl+A does not work,
triple-click on the icon on the right bottom corner on
the basic diagnostic screen.)
3. Make sure that the keyboard connection isConnected; then press Esc to escape the screen.
4. A layout of the keyboard appears on the screen.
Check that when each key is pressed, the key's
position on the keyboard layout on the screenchanges to a black square.
Note: When a Fn key is pressed, a black square
briefly appears.
5. Press Ctrl+Pause to end the test.
If the tests detect a keyboard problem, do the following
one at a time to correct the problem. Do not replace anondefective FRU.


Reseat the keyboard flexible cable.
Replace the keyboard assembly.
Replace the subcard.
Replace the system board.

ThinkPad 380, 380D, 385, 385D (2635)

191

The following auxiliary input devices are supported for thiscomputer:

Numeric keypad
Mouse (PS/2 compatible)
External keyboard (with keyboard/mouse cable)

If any of these devices do not work, reseat the cableconnector and repeat the failing operation.
If the problem does not recur, recheck the connector.
If the problem is not corrected, replace the device, andthen the system board.

TrackPoint III Checkout
If the TrackPoint III does not work, check the configurationin the ThinkPad Features program. If the configuration of
the TrackPoint III is disabled, select Enable to enable it.
If this does not correct the TrackPoint III problem, continue
with the following:
The TrackPoint III does automatic compensations to adjust
the pointer sensor. During this process, the pointer moves
on the screen automatically for a short time. This
self-acting pointer movement can occur when a slight,
steady pressure is applied to the TrackPoint III pointerwhile the computer is powered on or while the system isrunning, or when readjustment is required because thetemperature has exceeded its normal temperature range.
This symptom does not indicate a hardware problem. No
service actions are necessary if the pointer movement
stops in a short period of time.
If a click button problem or pointing stick problem occurs,
do the following:
1.
2.
3.
4.

Go to the Easy-Setup screen.
Select an item with the pointing stick.
Press either the left or right click button.
Verify that both buttons work correctly.

If either the pointing stick or the click button does not work,
do the following actions one at a time to correct the
problem. Do not replace a nondefective FRU.


Reseat the keyboard flexible cables.
Replace the keyboard.
Replace the subcard.
Replace the system board.

Diskette Drive Test
Do the following to isolate the problem to a controller,
drive, or diskette. A scratch, write enabled, nondefective
2HD diskette is required.

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IBM Mobile Systems - ThinkPad HMM Volume 3

FDD-1 represents the built-in diskette drive. FDD-2
represents the external diskette drive attached through theport replicator.
Warning: Make sure that the diskette does not havemore than one label attached to it. Multiple labels cancause damage to the drive or can cause the drive to fail.
Do the following to select the test device:
1. Go to the advanced diagnostic mode by pressing
Ctrl+A from the diagnostic menu.
2. Select FDD-1 or FDD-2 to run the diskette drive test.
3. Type Y (Yes) to the question on the screen.
4. Insert the blank diskette when instructed.
5. If the controller test detects an error, FRU code 10
appears. Replace the system board.
6. If the controller test runs without errors, the drive
read/write tests start automatically.
7. If the drive test detects an error, FRU code 50 for
FDD-1; or 51 for FDD-2 appears. If the diskette itself
is known to be good, replace the drive.

Status Indicator Checkout
If an LED problem occurs, do the following:
1. Power off the computer.
2. Power on the computer.
3. All the LEDs in the indicator panel should turn on fora moment soon after the computer is powered-on.
Make sure that all LEDs turn on.
If the problems remains, replace the following cards
one at a time:Subcard

System board

Power Systems Checkout
To verify the symptom of the problem, power on thecomputer using each of the power sources as follows.
1. Remove the battery pack and diskette drive.
2. Connect the AC Adapter and check that power is
supplied.
3. Disconnect the AC Adapter and install the charged
battery pack; then check that power is supplied by thebattery pack.
If you suspect a power problem, see the appropriate power
supply check listed below.
“Checking the AC Adapter” on page 194.
“Checking Operational Charging” on page 194.
“Checking the Battery Pack” on page 195.
“Checking the Backup Battery” on page 195.

ThinkPad 380, 380D, 385, 385D (2635)

193

Checking the AC Adapter:

You are here
because the computer fails only when the AC Adapter is
used.





If the power problem occurs only when the port
replicator is used, replace the replicator.
If the power-on indicator does not turn on, check thepower cord of the AC Adapter for correct continuity
and installation.
If the operational charge does not work, go to“Checking Operational Charging.”

1. Unplug the AC Adapter cable from the computer andmeasure the output voltage at the plug of the AC
Adapter cable. See the following figure:

Pin

Voltage (V dc)

1+14.5 to +17.0

2

GroundIf the voltage is correct, replace the subcard.
If the problem is not corrected, replace thesystem board.
 If the problem is not corrected, go to“Undetermined Problems” on page 209.
 If the voltage is not correct, go to the next step.
Unplug the AC Adapter cable from the ac power
outlet and wait 5 minutes or longer to allow theovervoltage protection circuit to be fully discharged
and initialized.
Plug the AC Adapter cable into the ac power outlet.
Measure the output voltage of the AC Adapter.
If the voltage is still not correct, replace the AC
Adapter.



2.

3.
4.
5.

Note: An audible noise from the AC Adapter does notalways indicate a defective adapter.

Checking Operational Charging: To check
operational charging, use a discharged battery pack or abattery pack that has less than 50% of the total power
remaining when installed in the computer.
Perform operational charging. If the battery statusindicator does not turn on, remove the battery pack andleave it to return to room temperature. Reinstall thebattery pack. If the charge indicator still does not turn on,
replace the battery pack.

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IBM Mobile Systems - ThinkPad HMM Volume 3

Checking the Battery Pack
1. Power off the computer.
2. Remove the battery pack and measure the voltage
between battery terminals 1 (+) and 4 (−). See thefollowing figure.

Terminal

Voltage (V dc) / Signal

1+0 to +13.5

2

N/C

3

Thermal4

Ground (−)

5

Select6

A-GroundNote: Signal lines not used in these steps are used
for communication between the system andthe battery.
3. If the voltage is less than +11.0 V dc, the battery packhas been discharged. Recharge the battery pack.
If the voltage is still less than +11.0 V dc after
recharging, replace the battery.
Note: If the voltage of the battery pack is 0 V, it is
not defective.
4. If the voltage is more than +11.0 V dc, measure theresistance between battery terminals 3 and 4. The
resistance must be 4 to 30 K ohm.
If the resistance is not correct, replace the battery
pack.
If the resistance is correct, replace the subcard.

Checking the Backup Battery
1. Power off the computer and unplug the AC Adapter
from the computer.
2. Turn the computer upside down.
3. Remove the DIMM cover and backup battery (see“1020 DIMM Card / Backup Battery” on page 218).
ThinkPad 380, 380D, 385, 385D (2635)

195

4. Measure the voltage of the backup battery. See thefollowing figure.
Note: Be careful not to measure the wrong side of
the backup battery.

Wire

Voltage (V dc)

Red+2.5 to +3.7

Black

GroundIf the voltage is correct, replace the system board.
If the voltage is not correct, the backup battery has
been discharged. Replace the backup battery.
If the backup battery discharges quickly after
replacement, replace the system board.

Port Replicator Checkout
Use the following procedure to isolate a port replicator
problem. A port replicator attaches to the system
expansion connector at the bottom of the computer.
1. Power off the computer.
2. Remove the failing devices from the replicator.
3. Unplug the AC adapter from the replicator, if
attached.
4. Remove the port replicator from the computer.
5. Reconnect the failing device directly to the computer.
(If another device already connected to the computer,remove it first.)
6. Go to “How to Run the Diagnostics” on page 212 andfollow that procedure.
7. If the advanced diagnostic device test does not findan error, suspect a problem with the port replicator of
the system expansion bus.
8. Power off the computer and reconnect the port
replicator.
9. Power on the computer and run the following
advanced diagnostic tests:
 Serial port test with the wrap plug installed on
the replicator

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IBM Mobile Systems - ThinkPad HMM Volume 3

Parallel port test with the wrap plug installed on
the replicator FDD-2 device test on the failing device with thescratch diskette
10. If diagnostic errors appear, replace the replicator or
the external diskette drive.


If the problem remains after the replacement, replace
the system board.
11. If power problems appear only when you use thereplicator, replace the replicator.

Power Management Features
Three power management modes are provided by thecomputer to reduce power consumption and prolong
battery power.

Standby Mode:

When in standby mode the following

occurs:The LCD backlight turns off.
The hard disk motor stops.

Events that cause the computer to enter standby mode:Standby requested by the Fn key. (Fn+F3)
No activity under auto-standby enabled by theThinkPad Features program.

Events that cause the computer to exit or resume standbymode:(Resume) Any key operation.

Suspend Mode: When in suspend mode, thefollowing, in addition to the three actions of standby mode,
occur:

The LCD is powered-off.
The hard disk is powered-off.
The CPU is stopped.

Notes:
1. In the ThinkPad Features Program, the computercan be set to “Will not suspend even if LCD isclosed.”2. When the computer is powered with ac power
and is used with one of the communication PC
cards, the computer enters standby mode; thePC card and application program remain active.
3. The computer cannot enter suspend mode while
a communication link is running.
Events that cause the computer to enter suspend mode:

Suspend mode is requested by the Fn key (Fn+F4).
The LCD is closed.

ThinkPad 380, 380D, 385, 385D (2635)

197






The specified time has elapsed from the lastoperation with the keyboard, mouse, hard disk drive,
parallel connector, or diskette drive; or the AC
Adapter is plugged in. The time is specified by
Suspend Timer in the ThinkPad Features program.
The battery condition is low. The battery power
indicator blinks orange.
Either the PS2 OFF or PS2 SUSpend command is
set in the ThinkPad Features program.

Events that cause the computer to exit or resume suspend
mode:






(Resume) The LCD is opened.
(Resume) The real time clock alarm is signaled.
(Resume) The ring indicator (RI) is signaled by aserial or PCMCIA device.
(Resume) The Fn key is pressed.
(Exit) Timer conditions are satisfied for enteringhibernation mode.

Hibernation Mode:

When in hibernation mode, thefollowing occurs:The system status, RAM, VRAM, and setup data are
stored on the hard disk.
The system is powered-off.

Notes:
The computer cannot enter hibernation mode when
the computer is powered with ac power and acommunication PC card is used.
Events that cause the computer to enter hibernation mode:

Hibernation mode is requested by the Fn key(Fn+F12).
Timer conditions are satisfied in suspend mode.
A critical low battery condition occurs.
The PS2 HIBernation command is set in the
ThinkPad Features program.

Event that causes the computer to exit hibernation mode.
The power-on switch is operated.

When power is turned on, the hibernation history in theboot record on the hard disk is recognized and systemstatus is restored from the hard disk to resume operation.

198

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom-to-FRU Index
The Symptom-to-FRU Index lists the symptoms and errors
and the possible causes. The most likely cause is listed
first.
Note: Perform the FRU replacement or actions in thesequence shown in the “FRU/Action” columns. If a FRU
did not solve the problem, put the original part back in thecomputer. Do not replace a nondefective FRU.
This index can also be used to help you decide which
FRUs to have available when servicing a computer.
Numeric error codes show the errors detected in POST or
system operation. In the following error codes, X can be
any number.
If no codes are available, use narrative symptoms.
If the symptom is not listed, go to “Undetermined
Problems” on page 209.
Note: For IBM devices not supported by diagnostic
codes in the ThinkPad notebook computers,
see the manual for that device.

Numeric Error Codes
Symptom / Error

FRU / Action in Sequence

10X

1. System board
101: Interrupt failure.
102: Timer failure.
103: Timer interrupt
failure.
104: Protected mode
failure.
105: Last 8042
command not
accepted.
107: NMI test failure.
108: Timer bus test
failure.
109: Low meg-chip
select test.

161(Dead battery.)

1. Go to “Checking the
Backup Battery” onpage 195.
2. Backup battery
3. System board

163(Time and Date was notset.)

1. Set time and date.
2. System board

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199

Symptom / Error

FRU / Action in Sequence173(Configuration data waslost.)

1. Select OK in the error
screen; then set thetime and date.
2. Backup battery
3. System board

174(Configuration error:
Perform “Checking theInstalled Devices List” onpage 213 before changing
any FRUs.)

1. Check Device
Configuration.
2. Hard disk drive
3. System board

184(POP check sum error.)

1. Reset the POP(power-on password)in Easy-Setup.

190(Depleted battery pack was
installed when the power
was on.)1. Go to “Checking theBattery Pack” onpage 195.

191XX(PM initialization error.)

1. System board

195(The configuration read fromthe hibernation area does
not match the actual
configuration.)

1. Check if theconfiguration waschanged.
For example, check if
the DIMM is added.

196(Read error occurred in thehibernation area of theHDD.)

1. Run the hard disk
drive test.
2. Hard disk drive

1XX

1. System board

2XX
201: Memory data
error.
202: Memory line error
00–15.
203: Memory line error
16–23.
205: Memory test
failure on on-board
memory.
221: ROM to RAM
remap error.
301, 303, 304, 305, 3XX(301: Keyboard error.)200

1. Go to “Memory
Checkout” onpage 190.
2. DIMM
3. System board

1. Go to“Keyboard/Auxiliary
Input Device
Checkout” onpage 191.
2. Keyboard
3. External numeric
keypad
4. External keyboard
5. Keyboard/mouse cable
6. Subcard
7. System board

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

601, 6XX(601: Diskette drive orcontroller error.)

1. Go to “Diskette Drive
Test” on page 192.
2. FDD assembly
3. Diskette
4. System board

602(Diskette read error.)

1. Go to “Diskette Drive
Test” on page 192.
2. Diskette
3. FDD assembly

604(Unacceptable ID was readfrom the diskette drive.)

1. Go to “Diskette Drive
Test” on page 192.
2. FDD assembly
3. System board

11XX
1101: Serial_A test failure.

1. Serial device
2. Communication cable
3. System board

12XX
1201: Serial_B test failure.

1. System board(Infrared)

17XX

1. Hard disk drive
2. System board

1701: Hard disk
controller failure.
1780, 1790: Hard disk
0 error.
1781, 1791: Hard disk
1 error.
24XX(2401: System board video
error.)

1. System board

808X

1. PCMCIA slot
assembly
2. PCMCIA device
3. System board

8081: PCMCIA
presence test failure.
(PCMCIA revision
number also checked.)
8082: PCMCIA register
test failure.
860X(Pointing device error when
TrackPoint III is disabled.)

1. External mouse
2. External keyboard
3. System board

8601: System bus
error–8042 mouseinterface.
8602: External mouseerror.
8603: System bus
error or mouse error.
861X(Pointing device error when
TrackPoint III is enabled.)
8611: System bus
error–I/F between 8042
and IPDC.
8612: TrackPoint error.
8613: System board or
TrackPoint error.

1. Reseat the keyboard
cables.
2. Keyboard
3. External mouse
4. System board

ThinkPad 380, 380D, 385, 385D (2635)

201

Symptom / Error

FRU / Action in Sequence

I9990301
I9990302
I9990305

1. Check that theoperating system isinstalled in the HDD.
If not, install theoperating system.
2. Reseat the bootdevice.
3. Check the startup
sequence for thecorrect boot device.
4. Check that theoperating system has
no failure and isinstalled correctly.

I9990301: Hard diskerror.
I9990302: Invalid harddisk boot record.
I9990305: No bootabledevice.

I9990303(Bank–2 flash ROM checksum error.)

1. System board

Other codes, not in thislist

1. Go to “Undetermined
Problems” onpage 209.

Diagnostic Error Codes
A detected error is shown as in the following example:






Large X on the left side of the device icon.
Device ID (three digit)
Error code (two digit)
FRU code (four digit)

The device ID and error code are used to indicate thedetail portion of the FRU that caused the error. If
replacing a FRU does not correct the problem, see thedevice ID or error code from the previous failure. If they
have changed, the cause might be because the new FRU
is detective or that the FRU was incorrectly installed.

Device ID: If an error is detected by the diagnostic
tests, a three-digits device ID is displayed. The device ID
indicates suspected device.
Icon

202

DeviceID

Suspected Device

001

System board

003

Keyboard

007

Math coprocessor

086

Pointing device

IBM Mobile Systems - ThinkPad HMM Volume 3

Icon

DeviceID

Suspected Device

002

Memory050

Display054

Display
017

Hard disk drive

006(Internal) diskette drive

066

External diskette driveor FDD Connector of theport replicator

080

PCMCIA

088

External PCMCIA

009

Parallel

011

Serial215

CD-ROM

103

IR

153

Audio

Audio

FRU Codes:

If an error is detected by the diagnostic
tests, a four-digit FRU code is displayed. The FRU code
indicates two suspected FRUs. No FRU is assigned tocode 00. If only one FRU is suspected, the other FRU
code is filled with zeros. Replace the FRU that is indicatedby the two leftmost digits first; then replace the FRU thatis indicated by the two rightmost digits. See theThinkPad 380, 380D, 385, 385D (2635)

203

reference page before replacing the FRU. The suspected
FRU name is also displayed on the screen. The following
table shows the FRU code:
FRU Code

FRU

10

System board

30

Reserved

32

External keyboard

33

External mouse40

LCD unit

45

External CRT

50

1. Reseat the diskette drive (FDD-1)
2. Diskette drive (FDD-1)

51

1. Reseat the diskette drive (FDD-2)
2. Diskette drive (FDD-2)

60

1. Reseat the hard disk drive
2. Hard disk drive70

PCMCIA-2 (Replicator) .

72

PCMCIA slot assembly

90

CD-ROM drive

If the problem still remains after replacement of the FRUs,
go to “Undetermined Problems” on page 209.

Beep Symptoms
Symptom / Error

FRU / Action in Sequence

Continuous beeps.

System board

One beep and a blank,
unreadable, or flashing
LCD.

1. Reseat the LCD
connector.
2. LCD unit
3. System board
4. Subcard

One beep, and the message“Unable to access bootsource.”1. Boot device
2. System board

One long and two short
beeps, and a blank or
unreadable LCD.

1. System board
2. LCD unit

One long beep followed byfour short beeps each time
the power switch isoperated.
(System cannot power-on
due to low battery voltage.)

Connect the AC Adapter
or install a fully charged
battery.

One beep every second.
(System is shutting down
due to low battery voltage.)

Connect the AC Adapter
or install a fully charged
battery. (Allow thesystem to complete
shutdown beforechanging the battery.)204

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

Two short beeps with error
codes.

POST error. See“Numeric Error Codes” onpage 199.

Two short beeps with blankscreen.

System board

No Beep Symptoms
Symptom / Error

FRU / Action in Sequence

No beep, power-on indicator
not on, and a blank LCD
during POST.

1. Go to “Power
Systems Checkout”
on page 193.
2. System board
3. Subcard
4. Power sources

No beep, power-on indicatoron, and a blank LCD during
POST.

1. System board
2. Subcard

No beep, power-on indicatoron, and a blinking cursor
only during POST.

1. System board
2. Subcard

No beep during POST but
system runs correctly.

1. Turn the volume up
and check the
speaker.
2. Speaker
3. System board
4. Subcard

LCD-Related Symptoms
Important
The LCD for the notebook computer contains over
921 000 thin-film transistors (TFTs). A small numberof missing, discolored, or lighted dots (on all the time)
is characteristic of TFT LCD technology, but excessive
pixel problems can cause viewing concerns. The LCD
should be replaced if the number of dots satisfies thefollowing condition:


The number of missing, discolored, or lighted
dots in any background is 21 or more.

Symptom / Error

FRU / Action in Sequence

No beep, power-on indicatoron, and a blank LCD during
POST.

1. System board
2. Subcard

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205

Symptom / Error

LCD backlight notworking

LCD too dark

LCD brightness cannot
be adjusted (TFT)

LCD contrast cannot
be adjusted (STN)

LCD screen
unreadable
Characters missing
pels
Screen abnormal
Wrong color displayedLCD has extra horizontal orvertical lines displayed.

FRU / Action in Sequence
1. Reseat the LCD
connectors.
2. LCD unit
3. Subcard

1. See important notefor “LCD-Related
Symptoms.”
2. Reseat all LCD
connectors.
3. LCD unit
4. System board
5. Subcard
LCD unit

Keyboard/TrackPoint III-Related
Symptoms
Symptom / Error

FRU / Action in Sequence

Keyboard (one or morekeys) does not work.

1. Reseat the keyboard
cable on the subcard.
2. Keyboard
3. Subcard
4. System board

TrackPoint III does notwork.

1. Reseat the keyboard
cable on the subcard.
2. Go to“Keyboard/TrackPoint
III-Related Symptoms.”
3. Keyboard
4. Subcard
5. System board

Pointer moves automaticallyor does not work correctly.

1. See“Keyboard/TrackPoint
III-Related
Symptoms.”

Indicator-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Indicator incorrectly remains
off or on, but system runs
correctly.

1. Subcard
2. System board

Battery power statusindicator blinks from green,
yellow, to orange.

1. Check that a correct
battery is installed.
2. Battery pack
3. Subcard
4. System board

206

IBM Mobile Systems - ThinkPad HMM Volume 3Power-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Power shuts down during
operation.

1. Go to “Power
Systems Checkout”
on page 193.
2. Battery pack
3. Remove the battery
pack and let it cool for
two hours.
4. Subcard
5. Power sources

The system will not
power-off.
(See “Power Shutdown
Switch” on page 188.)

1. Press the power
shutdown switch.
2. System board

Function/Audio-Related Symptoms
Symptom / Error

FRU / Action in Sequence

The system does notsuspend or resume whenthe LCD is opened orclosed.

1. Go to “Suspend
Mode” on page 197,and check that thecomputer can entersuspend mode.
2. Boot an operating
system and press
Fn+F4. If thecomputer enterssuspend mode,suspect that theapplication program is
not working properly.
3. Subcard
4. System board

Battery Fuel-Gauge does
not go higher than 90%.

Go to “Checking theBattery Pack” onpage 195 and see thenote.

Memory count (size)
appears different from
actual size.

Go to “Memory Checkout”
on page 190.

System configuration does
not match the installed
devices.

Go to “Checking theInstalled Devices List” onpage 213.

System hangs intermittently.

Go to “Intermittent
Problems” on page 209.

ThinkPad 380, 380D, 385, 385D (2635)

207

Peripheral-Device-Related Symptoms
Symptom / Error

FRU / Action in Sequence

External display does notwork correctly.

1. See “External Display
Self-Test” in“Common Devices
Checkout” section.

Printer problems.

1.
2.
3.
4.

Serial or parallel port device
problems.

1. Device
2. Device cable
3. System board

Run Printer Self-test.
Parallel port device
Cable
System board

Infrared-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Unable to communicate
using the Infrared (IR) Port.

1. Make sure the setup
for the IR is correct.
2. Make sure there areno fluorescent lights
near the computer.
The computer may
receive optical noisefrom the fluorescentlight.
3. Run the advanced
diagnostic test. If anerror occurs and a
FRU code is displayed,replace the parts
shown by the FRU
code.

Other Symptoms
Symptom / Error

FRU / Action in Sequence

Errors occur only when Port
Replicator is used.

See “Port Replicator
Checkout” on page 196.

PCMCIA slot pin isdamaged.

PCMCIA Slot Assembly

Note: If you cannot find a symptom or error in this list
and the problem remains, see “Undetermined Problems”
on page 209.

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IBM Mobile Systems - ThinkPad HMM Volume 3

Intermittent Problems
Intermittent system hang problems can be caused by avariety of reasons that have nothing to do with a hardware
defect, such as: cosmic radiation, electrostatic discharge,or software errors. FRU replacement should beconsidered only when a recurring problem exists.
When analyzing the intermittent problem, do the following:
1. Run the advanced diagnostic test for the systemboard in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by
the FRU code. Rerun the test to verify that no moreerrors exist.

Undetermined Problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices areincorrect, a short circuit is suspected, or the system is
inoperative. Follow the procedures below to isolate thefailing FRU (do not isolate nondefective FRUs).
Verify that all attached devices are supported by thecomputer.
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 193.)
1. Power off the computer.
2. Check the cables, wires, and connectors for short oropen circuits. Visually check for damage. If any
problems are found, replace the FRU.
3. Remove or disconnect all of the following devices.
a. Non-IBM devices
b. Devices attached to the expansion bus
connector
c. Printer, mouse, and other external devices
d. Battery packe. Hard disk drive
f. Diskette drive
g. DIMM cardh. PC Cards
4. Power on the computer.
5. Determine if the problem has changed.
6. If the problem does not occur again, reconnect theremoved devices one at a time until you find thefailing FRU.
7. If the problem remains, replace the following FRUs
one at a time. Do not replace a non-defective FRU.
 Subcard
 System board

ThinkPad 380, 380D, 385, 385D (2635)

209

Related Service ProceduresThis section provides information about the following:









“Status Indicators”“How to Run the Diagnostics” on page 212“Error Log” on page 213“Checking the Installed Devices List” on page 213“How to Run a Low-Level Format” on page 213“PC Test Card LED” on page 214“Fn Key Combinations” on page 214“Keyboard/Auxiliary Input Device Checkout” onpage 191

Status Indicators
The system status indicators show the current computer
status in different colors (green and orange).

210

IBM Mobile Systems - ThinkPad HMM Volume 3Symbol

Color

Meaning.1/Battery

Green

Enough battery
power remains
for operation.

OrangeBattery pack ischarging.

Blinking orange

Battery packneeds charging.

.2/Device
AccessOrangeData is readfrom or written to
the hard disk
drive, FDD, or
CD-ROM drive.

.3/Numeric Lock

Green

Numeric keypadon the keyboard
is enabled.

.4/Caps Lock

Green

Caps lock modeis enabled.

.5/Scroll Lock

Green

Arrow keys canbe used as
screen-scroll
function key.

.6/Suspend
Mode

Green

Suspend mode

.7/Power On

GreenPower onThinkPad 380, 380D, 385, 385D (2635)

211

How to Run the Diagnostics
Use either the TrackPoint III or the cursor move keys tointeract with the tests. Pressing the Enter key works thesame as selecting the OK icon to reply OK.
The following tools are required:

FDD:
Parallel:
Serial:PCMCIA:
CDROM:

Erasable 2HD diskette
Wrap plug (P/N 72X8546)
Wrap plug (P/N 72X8546)
PC Test Card (P/N 35G4703)
Any CD (data CD is recommended)

1. Press and hold the F1 key; then power on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
2. Select Test and press Enter.
3. Select a device and press Enter to run the test.
4. The test progress screen appears.
5. OK appears when the test ends without any errors.
6. Start the Advanced Diagnostic test as either of thefollowing way:
 Pressing Ctrl+A on the basic diagnostic menu
screen.
 Triple-click the icon on the right bottom corner on
the basic diagnostic screen.
7. The ThinkPad FRU Connections screen appears.
This screen shows the state of the connection of allconnectors.
Check the connector if the Not connected message
appears on the screen.
8. Click on Exit on the screen or press Esc to exit thescreen.
9. The keyboard test screen appears.
Check the keyboard.
10. Click on Exit on the screen or press Ctrl+Pause toexit the screen.
11. Select a device and press Enter to start the tests.
The instruction appears, and follow the instruction on
the screen.
12. Select Test All to test all devices.
13. Select Loop Test to run the tests in a repeated loop.
A loop option menu appears in which a device loop or
all-device loop can be selected. Select a device andpress the Spacebar to select a device. Repeat thisstep to select multiple devices. Press Enter to startthe diagnostic loop. If no device is selected, alldevice tests are looped.
14. To exit the loop, keep pressing Ctrl+Pause until thetest exits. A beep sounds to notify that the exit
interrupt is sensed by the test program.

212

IBM Mobile Systems - ThinkPad HMM Volume 3Error Log
Diagnostic errors are printed on the printer that is attachedto the parallel port when the error is detected. The error isalso logged in the system memory.
Do the following to display the errors:
1. End the test, if it is running.
2. Press Ctrl+A to select the advanced diagnostic mode.
3. Press Esc to exit the &tpad. FRU Connections
screen.
4.
5.
6.
7.

The keyboard test screen appears.
Press Ctrl+Pause to exit the keyboard test screen.
Press Ctrl+E.
The error log appears.
To exit the screen, select the cancel icon or press
Esc.

The error log is not saved when the system is powered-off.

Checking the Installed Devices List
If a device is installed but the icon appears in a gray shaderather than a dark shade on the basic diagnostics screen,
the device is defective. Reseat the device connectors. If
the symptom remains, replace the device or the systemboard. If needed, adjust the contrast control to clearly
distinguish the shades of the icon.
If a device that is not installed appears in a dark shade (forexample, FDD-2 appears in a dark shade when NO
second FDD is installed), do the following:
1. Replace the first device in the configuration, such asan FDD-1.
2. If the problem remains, replace the system board.
The Parallel, and Serial icons are always displayed in adark shade because the icons represent subsystems of thesystem board and not the attachment of the devices.
The FDD-1 and PCMCIA-1 icons represent the drive in thecomputer. The FDD-2 and PCMCIA-2 icons represent thedevices in the port replicator or that is attached through theport replicator.

How to Run a Low-Level Format
Do the following to format the hard disk.
Warning: Make sure the drive address to be formatted iscorrect. This procedure erases all information on the disk.
1. Power off the computer.
2. Insert the ThinkPad Hardware MaintenanceDiskette Version 1.30 into diskette drive A andpower on the computer.
3. Select Format the hard disk from the main menu.
4. Select the drive from the menu.
5. Follow the instructions on the screen.
ThinkPad 380, 380D, 385, 385D (2635)

213

PC Test Card LED
The green LED on the PC test card turns on when the
PCMCIA test is running. If the LED does not turn on,
check that the card is installed correctly by reseating thecard. If it still does not turn on after it is reseated, try
using another slot for the test. If the LED still does notturn on and the test fails, replace the FRU shown by the
diagnostic error code.

Fn Key Combinations
The following table shows the Fn key and function key
combinations and their corresponding functions.
The Fn key works independently from the operating
system. The operating system obtains the status throughthe system management interface to control the system.
Fn +Description

F1

Reserved

F2

Fuel-Gauge display on or off

F3Standby mode invocation

F4

Suspend mode invocation

F5

Reserved

F6

Reserved

F7

LCD/CRT display switching

F8

Screen expansion on or off (no symbol on
the key)

F9

Reserved

F10

Reserved

F11Power management mode switching(toggles High Power, Intelligent, Economy)

F12

Hibernation invocation

214

IBM Mobile Systems - ThinkPad HMM Volume 3

Product Overview (380, 380D, 385,
385D)
The following table shows an overview of the system
features.
FeatureDescription

ProcessorIntel Pentium 150/60
MHz, 256K L2 cache

Bus Architecture

PCI bus

Memory (standard)

16MB (on the systemboard)

Memory (option)(One 144-pin DIMM slot)



CMOS RAM242 bytes

Video





8MB, 16MB, 32MB nonparity DIMM (max.
48MB)

12.1-inch, 64K colors,
800×600 pixel DSTN
color LCD
12.1-inch, 256K colors,
800×600 pixel TFT
color LCD

Diskette Drive

1.44MB (3-mode),
3.5-inch

CD-ROM Drive



8X transfer speed

Hard Disk Drive

1.08GB, 2.5-inch, IDE
interface
1.35GB, 2.5-inch, IDE
interface
2.1GB, 2.5-inch, IDE
interface
I/O Port

Headphone
Microphone
Port replicator

Audio






16-bit audio
Internal speaker
Internal microphone
Mechanical volume

Infrared Transfer



4 million bps serial
communication
Transmitter andreceiver module


PCMCIA

One Type-IIIor two Type-II
ZV portThinkPad 380, 380D, 385, 385D (2635)

215

FRU Removals and Replacements
This section contains information about removals andreplacements.








Do not damage any parts. Only certified and trained
personnel should service the computer.
The arrows in the “Removals and Replacements”
section show the direction of movement to remove a
FRU, or to turn a screw to release the FRU. The
arrows are marked in numeric order, in squarecallouts, to show the correct sequence of removal.
When other FRUs must be removed before removing
the failing FRU, they are listed at the top of the page.
To replace a FRU, reverse the removal procedureand follow any notes that pertain to replacement.
See “Locations” for internal cable connections andarrangement information.
When replacing a FRU, use the correct screw size asshown in the procedures.
Safety Notice 1: Translation on page 8

Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or othersmall parts, are in place and are not left loose inside
the computer. Verify this by shaking the computerand listening for rattling sounds. Metallic parts or
metal flakes can cause electrical short circuits.
Safety Notice 3: Translation on page 10
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack asrequired by local ordinances or regulations.
Safety Notice 8: Translation on page 14
Before removing any FRU, power-off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.
Safety Notice 4: Translation on page 11
The lithium battery can cause a fire, explosion, orsevere burn. Do not recharge it, remove its polarized
connector, disassemble it, heat it above 100°C(212°F), incinerate it, or expose its cell contents towater. Dispose of the battery as required by local
ordinances or regulations. Use only the battery in theappropriate parts listing. Use of an incorrect battery
can result in ignition or explosion of the battery.

216

IBM Mobile Systems - ThinkPad HMM Volume 31010 Battery Pack
.1/ Turn the computer upside down.
Pull up the battery pack latch .2/, push it back .3/, andthen pull up the battery pack .4/.

ThinkPad 380, 380D, 385, 385D (2635)

217

1020 DIMM Card / Backup Battery
Safety Notice 4: Translation on page 11
The lithium battery can cause a fire, explosion, orsevere burn. Do not recharge it, remove its polarized
connector, disassemble it, heat it above 100°C(212°F), incinerate it, or expose its cell contents towater. Dispose of the battery as required by local
ordinances or regulations. Use only the battery in theappropriate parts listing. Use of an incorrect battery
can result in ignition or explosion of the battery.

.1/ Turn the computer upside down.
.2/.3/.4/.5/.6/: DIMM
.2/.3/.7/: Backup battery

When replacing:Make sure the plus side is on top when replacing
the backup battery.
Step

Location (Quantity)

Length.2/

DIMM cover (1)—Note: Only loosen the screw in step .2/.

218

IBM Mobile Systems - ThinkPad HMM Volume 31030 Keyboard Unit

Battery Pack (1010)

Step

Location (Quantity)

Length.1/Base cover (1)M 2.5 x25mm

.2/Base cover (4)M 2.5 x6mm

Note: When replacing, make sure you use the correct screw.

.4/Turn the computer over again.

ThinkPad 380, 380D, 385, 385D (2635)

219

Note: Pull the keyboard assembly forward a little in step
.7/.

220

IBM Mobile Systems - ThinkPad HMM Volume 31040 CD-ROM/FDD AssemblyBattery Pack (1010)
Keyboard Unit (1030)

Note: Be careful that the computer does not fall backward
when the CD-ROM/FDD assembly is removed.

Step

Location (Quantity)

Length.1/.2/

Bracket (2)M 2.5 x6mm

.4/.5/.6/

Base cover (4)M 2.5 x
6mm

ThinkPad 380, 380D, 385, 385D (2635)

221

Models 380/385.9/.1ð/: Blank Bezel.11/.12/: FDD Bezel.11/.12/.13/.14/: FDD

Step

Location (Quantity)

Length.9/

Bracket (1)M 2.6 x4mm

.11/Bracket (1)M 2.6 x4mm

.13/Bracket (3)M 2.6 x
2.8mm
(red)

Note: When replacing, make sure you use the correct screw.

222

IBM Mobile Systems - ThinkPad HMM Volume 3

Models 380D/385D FDD

Step

Location (Quantity)

Length.9/

Bracket (1)M 2.6 x4mm

.11/Bracket (3)M 2.6 x
2.8mm
(red)

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

223

Models 380D/385D CD-ROM

Step

Location (Quantity)

Length.9/

Bracket (4)

M2x
2.4mm
w/washer

Note: When replacing, make sure you use the correct screw.

224

IBM Mobile Systems - ThinkPad HMM Volume 31050 Speaker / MicrophoneBattery Pack (1010)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040).1/.2/.3/: Speaker.4/.5/.6/: Microphone
Note: To remove the microphone easily, pull up theupper shield slightly.

Step

Location (Quantity)

Length.5/

System board assembly (2)M 2.6 x4mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

225

1060 Hard Disk Drive
Warning
Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physicalshock. Incorrect handling can cause damage andpermanent loss of data on the hard disk. Before
removing the hard disk drive, have the user make a
backup copy of all the information on the hard disk.
Never remove the hard disk drive while the system isoperating or is in suspend mode.




226

Battery Pack (1010)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)

IBM Mobile Systems - ThinkPad HMM Volume 3

Step

Location (Quantity)

Length.2/Base cover (1)M 2.5 x6mm

.5/Base cover (4)M 2.5 x6mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

2271070 LCD Unit



228

Battery Pack (1010)
Keyboard Unit (1030)

IBM Mobile Systems - ThinkPad HMM Volume 3

Step

Location (Quantity)

Length.2/Base cover (5)M 2.5 x6mm

.4/Bracket (1)M 2.5 x6mm

.6/Hinges, LCD unit (3)M 2.5 x6mm

.7/

LCD cable (1)M 2.5 x6mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

229

When replacing: The following artwork is the reference
for replacement.

230

IBM Mobile Systems - ThinkPad HMM Volume 3

1080 System Board Assembly
Notes:
1. The system unit serial number must be restored when
the system board is replaced. To restore the system
unit serial number, select the option “Set system
identification” on the maintenance diskette. The flash
ROM on the system board contains the vital productdata (VPD)—that is, the system unit serial number,system board system number, and othercomputer-unique data.
2. Do not power off the computer when restoring the
VPD. The system unit serial number label is attachedto the base cover.
3. Before removing and replacing the system board
assembly, make sure that the PCMCIA cards are
removed and the eject levers are not sticking out.







Battery Pack (1010)
DIMM Cover (1020)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)
LCD Unit (1070)
Hard Disk Drive (1060)

ThinkPad 380, 380D, 385, 385D (2635)

231

1080 System Board Assembly (Continued)

Note
As the PCMCIA eject buttons are sticking out, pull the
buttons out slightly and fold them to the right; thenpush up the system board assembly from the bottom
when removing the system board assembly.

Step

Location (Quantity)

Length.4/

System board assembly (2)M 2.5 x6mm

.5/Base cover (1)Specialscrew

Note: When replacing, make sure you use the correct screw.

232

IBM Mobile Systems - ThinkPad HMM Volume 31090 Sub Card








Battery Pack (1010)
DIMM Cover (1020)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)
LCD Unit (1070)
Hard Disk Drive (1060)
System Board Assembly (1080)

Step

Location (Quantity)

Length.1/Upper shield (3)M 2.5 x6mm

.2/Upper shield (1)M 2.5 x8mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

233

1100 PCMCIA Slot








234

Battery Pack (1010)
DIMM Cover (1020)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)
LCD Unit (1070)
Hard Disk Drive (1060)
System Board Assembly (1080)

IBM Mobile Systems - ThinkPad HMM Volume 3

Step

Location (Quantity)

Length.1/Upper shield (3)M 2.5 x6mm

.2/Upper shield (1)M 2.5 x8mm

.5/Lower shield (6)M 2.5 x6mm

.6/Lower shield (6)

Stud
screw

.8/

PCMCIA assembly (2)

M2x
16mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

235

1110 Fan








236

Battery Pack (1010)
DIMM Cover (1020)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)
LCD Unit (1070)
Hard Disk Drive (1060)
System Board Assembly (1080)

IBM Mobile Systems - ThinkPad HMM Volume 31110 Fan (Continued)
Notes:
1. Be careful not to touch the rotor and blade of the fan
when assembling or disassembling.
2. Fix the fan cable on the air duct by using the cable
holder when replacing.

Step

Location (Quantity)

Length.1/Upper shield (3)M 2.5 x6mm

.2/Upper shield (1)M 2.5 x8mm

.5/Fan (2)M2x6mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

237

1120 LCD Front Cover






238

Battery Pack (1010)
DIMM Cover (1020)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)
LCD Unit (1070)

IBM Mobile Systems - ThinkPad HMM Volume 31120 LCD Front Cover (Continued)
Note
The LCD front cover has several latches. Release thelatches as shown.

Step

Location (Quantity)

Length.1/

LCD front cover (2)M 2.5 x6mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

239

1130 LCD Panel







Battery Pack (1010)
DIMM Cover (1020)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)
LCD Unit (1070)
LCD Front Cover (1120)

DSTN LCD Panel

Note: In step .4/, lift the LCD panel a little to disconnect
the flexible cable in step .5/.

Step

Location (Quantity)

Length.1/

LCD panel (4)M 2.5 x6mm

Note: When replacing, make sure you use the correct screw.

240

IBM Mobile Systems - ThinkPad HMM Volume 3

TFT LCD Panel

Type 1

ThinkPad 380, 380D, 385, 385D (2635)

241

Type 2

Step

Location (Quantity)

Length.1/

LCD panel (4)M 2.5 x6mm

Note: When replacing, make sure you use the correct screw.

242

IBM Mobile Systems - ThinkPad HMM Volume 31140 LCD Inverter Card








Battery Pack (1010)
DIMM Cover (1020)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)
LCD Unit (1070)
LCD Front Cover (1120)
LCD Panel (1130)

DSTN LCD

Step

Location (Quantity)

Length.1/

LCD inverter card (1)M 2.5 x6mm

Note: When replacing, make sure you use the correct screw.

TFT LCD (Type 2 only)

Step

Location (Quantity)

Length.2/

LCD inverter card (2)M 2.0 x
3.7mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

243

1150 LCD Misc. Parts









Battery Pack (1010)
DIMM Cover (1020)
Keyboard Unit (1030)
CD-ROM/FDD Assembly (1040)
LCD Unit (1070)
LCD Front Cover (1120)
LCD Panel (1130)
LCD Inverter Card (1140)

DSTN LCD Hinges/Latches.1/.2/.3/.4/: Hinges.5/.6/: Latches

Step

Location (Quantity)

Length.1/

LCD hinge (3)M2.5x6mm.3/

LCD hinge (2)M2.5x6mm

Note: When replacing, make sure you use the correct screw.

244

IBM Mobile Systems - ThinkPad HMM Volume 3

TFT LCD: This artwork shows the TFT type 1 LCD.
For the type 2, do the same procedure.
.1/.2/.3/.4/: Hinges.5/.6/: Latches

Step

Location (Quantity)

Length.1/

LCD hinge (3)M 2.5 x6mm

.3/

LCD hinge (2)M 2.5 x6mm

Note: When replacing, make sure you use the correct screw.

ThinkPad 380, 380D, 385, 385D (2635)

245

When replacing:
Replace the LCD miscellaneous parts as follows:

246

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cable
DSTN LCD

ThinkPad 380, 380D, 385, 385D (2635)

247

TFT LCD

248

IBM Mobile Systems - ThinkPad HMM Volume 3

Locations
Front View
.1/ LCD latch.2/ Contrast control (DSTN model)
Brightness control (TFT model).3/ Headphone jack
.4/ Microphone/line-in jack
.5/ Volume control.6/ Diskette drive.7/ Diskette eject button.8/ CD-ROM drive.9/ CD-ROM eject button.1ð/ CD-ROM emergency eject hole
.11/ TrackPoint III.12/ Built-in speaker.13/ Palm rest
.14/ Built-in microphone.15/ Fn Key.16/ Keyboard.17/ Fan louver.18/ Status indicator.19/ LCD panel

ThinkPad 380, 380D, 385, 385D (2635)

249

Rear View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/
.11/
.12/

250

External-monitor connector
Parallel connector
Serial connector
Power jack
External-input-device connector
Suspend mode indicator
Battery indicator
IR portPower switch
PCMCIA slots
PC Card eject button
Security key hole

IBM Mobile Systems - ThinkPad HMM Volume 3

Bottom View
.1/
.2/
.3/
.4/
.5/
.6/
.7/

Memory-slot cover
System-expansion connector
Memory slot
Backup battery
Battery pack latch
Battery pack
Power shutdown switch

ThinkPad 380, 380D, 385, 385D (2635)

251

Parts Listing 380/385 (2635)

252

IBM Mobile Systems - ThinkPad HMM Volume 3

Index
1
2
3
4
5

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

31

System Unit
LCD Assembly (see LCD FRU section)
Keyboard Assembly (see Keyboard)
Subcard
HDD Bracket
Hard Disk Drive (1.08 GB)
Hard Disk Drive (1.4 GB)
Hard Disk Drive (2.1 GB)
System Board (150MHz-P54C)
System Board (150MHz-P55C)
Audio Jack Holder (see Misc. Parts)
Lower Shield Case
Backup Battery
Power Switch Knob (see Misc. Parts)
I/O Door
Base Cover Assembly
DIMM Cover Assembly
Battery Pack (Li-ion)
Battery Pack (NiMH)
Battery Pack Latch Kit
FDD Bezel
Blank Bezel
FDD
CD-ROM
Support Structure (see Misc. Parts)
CD/FDD Connector (CD-Model)
FDD Connector (non CD-Model)
Drive Bracket
Speaker Assembly
Microphone Assembly
PCMCIA SlotHeat Sink (for fan)
Fan
Air Duct (see Misc. Parts)
Upper Shield Case
Keyboard Bezel
Include the following labels:- for 380
- for 380D
- for 385
- for 385D
LCD GND Holder, Lower (see Misc. Parts)

Cable Holder
Thermal Rubber
TrackPoint III Cap
AC Adapter (35W)
AC Adapter (35W, 3-prong)

ThinkPad 380, 380D, 385, 385D (2635)

73H9928
73H9936
73H6418
73H6419
73H6427
83H6524
73H9923
73H9927
46H4132
73H9920
73H9919
73H9921
73H9951
73H9952
11J831573H9932
73H9934
11J8338
73H9933
73H9935
83H6527
73H9930
73H9938
73H9939
83H6523
83H6525
83H6526
73H9929
73H9950

11J8376
73H9924
84G6536
85G6738
85G6736

253

LCD FRU (DSTN)

1
2
3
4
5

254

LCD Cover
LCD Inverter
LCD Cable
LCD Hinge
LCD Panel(12.1" DSTN)

73H9940
73H9946
73H9947
73H9942
73H9944

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD FRU (TFT)
Type 1

1
2
3
4
5

LCD Cover
LCD Panel (12.1" TFT)LCD Cable
LCD Hinge
LCD Lens (see Misc. Parts)

73H9941
73H9945
73H9948
73H9943

LCD Misc. Parts
Include the following:
Control KnobLCD Upper Holder
Latch, Right
Latch, Left
Latch, Spring (2)Latch, Holder (2)LED Lens
Screw Cap (2)73H9949

ThinkPad 380, 380D, 385, 385D (2635)

255

Type 2

1
2
3
4
5
6

256

LCD Cover
LCD Panel (12.1" TFT)LCD Cable
LCD Inverter
LCD Hinge
LCD Lens (see Misc. Parts)

11J8860
11J9623
11J9625
11J962273H9943

LCD Misc. Parts
Includes the following:
Control KnobLCD Upper Holder
Latch, Right
Latch, Left
Latch, Spring (2)Latch, Holder (2)LED Lens
Screw Cap (2)73H9949

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard
ArabicBelgianCanadian French
Czech
DanishDutch
FrenchGerman
Greek
Hebrew
Hungarian
ItalianJapanese
KoreanLatin Spanish
Norwegian
PolandPortuguese
RussianSlovakianSlovenian
SpanishSwedish / Finnish
Swiss
TurkishChineseThai
U.K. English
U.S. English

11J8305
83H6485
83H6488
11J8306
83H6487
83H6480
83H6478
83H6477
11J8307
11J8308
11J8309
83H6479
83H6476
11J8299
11J8302
83H6486
11J8311
11J8310
11J8300
11J8312
11J8313
83H6482
83H6481
83H6483
11J8304
11J8301
11J8303
83H6475
83H6474

ThinkPad 380, 380D, 385, 385D (2635)

257

Common/Option Parts List
Miscellaneous Parts
Misc. Parts
Include the following:
Support structure
Air Duct
Audio Jack Holder
Power Switch KnobLCD GNG Holder, Lower

73H9937

Screw Kits
Include the following:
Hex Stud, D-Sub (6)M2 x 2.4, Pan head (4)M2 x 6, Pan head (2)M2.5 x 6, Bind head (60)
M2.5 x 8, Bind head (1)M2.5 x 25, Bind head (1)M2.5 Special (1)M2.6 x 4, Bind head (1)M2.6 x 2.8, Bind head (3)M3 x 3, Bind head (4)83H6522

Options
Notes:
1. When you replace the AC Adapter, use the one forthe country you are in even if the computer is from adifferent country.
2. The warranty for the system unit does not apply to all
options.
HeadsetMicrophone
PS/2 Miniature Mouse
DIMM 8MB
DIMM 16MB
DIMM 32MB
Interface Cable, System to Keyboard
Interface Cable, Keyboard to Keypad
Mini-DIN to Mini-DIN Cable.
380/385 Port Replicator
380/385 Cover Set - Port ReplicatorThinkPad 560 Port Replicator

258

85G1529
66G7871
95F5723
42H2767
42H2768
42H2769
84G2531
84G2532
84G6474
84G1320
84G1321
46H4107

IBM Mobile Systems - ThinkPad HMM Volume 3

Numeric Keypad
BelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
Icelandic
ItalianJapanese
Norwegian
SpanishSwedish / Finnish
Swiss / French
Swiss / German
Turkish
U.K. English
U.S. English

95F5741
95F5466
95F5467
95F5467
95F6313
95F6314
95F5467
95F5741
95F5467
95F6316
79F6401
95F5467
95F6315
95F5468
95F5711
95F5715
95F5467
95F5741
95F5741

Black Keypad
FrenchGermanItalianNorwegianSwedish
U.K. English
U.S. English

84G6286
84G6280
84G6292
84G6310
84G6304
84G6298
84G2530

Black Keyboard
FrenchGermanItalianNorwegianSwedish
U.K. English
U.S. English

84G6285
84G6279
84G6291
84G6309
84G6303
84G6297
84G2529

Accessories
Keyboard/Mouse Cable

54G0444

Tri-Connector Wrap PlugPC Test Card
Audio Wrap Cable
Screwdriver Kit
ThinkPad Hardware MaintenanceDiskette - Version 1.30

72X8546
35G4703
66G5180
95F3598
78H5384

Tools

ThinkPad 380, 380D, 385, 385D (2635)

259

Power Cords

IBM power cords for a specific country are usuallyavailable only in that country:

For 2-pin power cords:

IBM Power
Cord
Part Number

Used in These Countries

13H5264

Bahamas, Barbados, Bermuda, Bolivia,
Canada, Cayman Islands, Colombia,
Costa Rica, Dominican Republic,
Ecuador, El Salvador, Guatemala,
Guyana, Haiti, Honduras, Jamaica,
Korea (South), Mexico, Netherlands
Antilles, Nicaragua, Panama, Peru,
Philippines, Saudi Arabia, Suriname,Taiwan, Thailand, Trinidad (WestIndies), United States of America,
Venezuela

14F0033

Abu Dhabi, Albania, Antigua, Bahrain,
Brunei, Dubai, Fiji, Hong Kong, India,
Ireland, Kenya, Kuwait, Macao,
Malaysia, Nigeria, Oman, People's
Republic of China, Qatar, Singapore,
United Kingdom

260

IBM Mobile Systems - ThinkPad HMM Volume 3

IBM Power
Cord
Part Number

Used in These Countries

13H5270

Austria, Belgium, Bulgaria, Chile,
Czech Republic, Denmark, Egypt,
Finland, France, Germany, Greece,
Hungary, Iceland, Indonesia, Israel,
Italy, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Spain,
Sweden, Switzerland, Turkey, former
Yugoslavia

13H5273

Japan

13H5276

Argentina, Australia, New Zealand,
Papua New Guinea, Paraguay,
Uruguay

13H5279

Bangladesh, Pakistan, South Africa, Sri
Lanka



For 3-pin power cords:
Important
The grounded adapter is required for full MPRI
compliance.

IBM Power
Cord
Part Number

Used in These Countries

76H3514

Argentina, Australia, Papua New
Guinea, New Zealand, Paraguay,
Uruguay

76H3516

Bahamas, Barbados, Bermuda, Bolivia,
Canada, Cayman Islands, Colombia,
Costa Rica, Dominican Republic,
Ecuador, El Salvador, Guatemala,
Guyana, Haiti, Honduras, Jamaica,
Mexico, Netherlands Antilles,
Nicaragua, Panama, Peru, Philippines,
Saudi Arabia, Suriname, Taiwan,
Trinidad (West Indies), United States ofAmerica, Venezuela

76H3518

Austria, Belgium, Bulgaria, Czech
Republic, Egypt, Finland, France,
Germany, Greece, Hungary, Iceland,
Indonesia, Netherlands, Norway,
Poland, Portugal, Romania, Slovakia,
Spain, Sweden, Turkey, former
Yugoslavia

76H3520

Denmark

76H3522

Bangladesh, Pakistan, South Africa, Sri
Lanka

ThinkPad 380, 380D, 385, 385D (2635)

261

IBM Power
Cord
Part Number

Used in These Countries

76H3524

Abu Dhabi, Albania, Antigua, Bahrain,
Brunei, Dubai, Fiji, Hong Kong, India,
Ireland, Kenya, Kuwait, Macao,
Malaysia, Nigeria, Oman, People's
Republic of China, Qatar, Singapore,
United Kingdom

76H3526

Japan

76H3528

Switzerland, Liechtenstein

76H3530

Chile, Italy, Ethiopia, Libya

76H3532

Israel

76H3535

Korea

76H4866

Thailand262

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 560 (2640)
Read This First . . . . . . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . .
Memory Checkout . . . . . . . . . . . . . .
System Board Checkout . . . . . . . . . . .
Keyboard/Auxiliary Input Device Checkout . . .
TrackPoint III Checkout. . . . . . . . . . .
Diskette Drive Test
. . . . . . . . . . . . .
Status Indicator Checkout. . . . . . . . . .
Power Systems Checkout. . . . . . . . . .
Port Replicator Checkout . . . . . . . . . . .
Power Management Features. . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . .
Numeric Error Codes . . . . . . . . . . . . .
Diagnostic Error Codes. . . . . . . . . . .
Beep Symptoms . . . . . . . . . . . . . . .
No Beep Symptoms . . . . . . . . . . . . .
LCD-Related Symptoms. . . . . . . . . . .
Keyboard/TrackPoint III-Related Symptoms. .
Indicator-Related Symptoms. . . . . . . . .
Power-Related Symptoms. . . . . . . . . .
Function-Related Symptoms. . . . . . . . .
Peripheral-Device-Related Symptoms . . . . .
Infrared-Related Symptoms . . . . . . . . . .
Other Symptoms . . . . . . . . . . . . . . .
Intermittent Problems. . . . . . . . . . . .
Undetermined Problems. . . . . . . . . . .
Related Service Procedures . . . . . . . . . . .
Status Indicators . . . . . . . . . . . . . . .
How to Run the Diagnostics. . . . . . . . .
Error Log
. . . . . . . . . . . . . . . . . .
Checking the Installed Devices List . . . . . .
How to Run a Low-Level Format. . . . . . .
PC Test Card LED . . . . . . . . . . . . . .
Fn Key Combinations. . . . . . . . . . . .
Product Overview (560) . . . . . . . . . . . . .
FRU Removals and Replacements . . . . . . . .
1010 Backup Battery. . . . . . . . . . . .
1020 DIMM Card (If installed). . . . . . . .
1030 Battery Pack
. . . . . . . . . . . . .
1040 Frame. . . . . . . . . . . . . . . .
1050 Keyboard Unit . . . . . . . . . . . . .
1060 LCD Assembly. . . . . . . . . . . .
1070 Speaker . . . . . . . . . . . . . . . .
1080 Hard Disk Drive . . . . . . . . . . . .
1090 PCMCIA Slot Assembly. . . . . . . .
1100 System Board . . . . . . . . . . . . .
1120 LCD Front Cover. . . . . . . . . . .
1130 LCD Panel. . . . . . . . . . . . . .
1140 Inverter Card (DSTN only) . . . . . . .
1150 LCD Cable / Hinges . . . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . .

265
268
269
270
270
271
271
272
272
275
276
279
279
283
285
286
286
287
287
287
288
288
289
289
289
290
291
291
292
293
293
294
294
295
296
297
298
299
300
301
303
307
308
309
310
311
313
315
318
319
321

 Copyright IBM Corp. 1997

263

Front View
. . . . . . . . . . . . . . . . .
Bottom View . . . . . . . . . . . . . . . . .
Rear View . . . . . . . . . . . . . . . . . .
Parts Listing 560 (2640) . . . . . . . . . . . . .
LCD FRU (DSTN) . . . . . . . . . . . . . .
LCD FRU (TFT) . . . . . . . . . . . . . . .
Keyboard . . . . . . . . . . . . . . . . . .
Common/Option Parts List . . . . . . . . . .

264

321
322
323
325
327
328
329
330

IBM Mobile Systems - ThinkPad HMM Volume 3

Read This First
Before you go to the checkout guide, be sure to read thissection.
Important Notes










Only certified trained personnel should
service the computer.
Read FRU service procedures before replacing
any FRUs.
Be extremely careful during write operations
such as copying, saving, or formatting. Drives
in the computer that you are servicing might havebeen rearranged or the drive startup sequence
might have been altered. If you select anincorrect drive, data or programs can be written
over.
Replace FRUs only for the correct model.
When you replace the FRU, make sure themodel of the machine and FRU part number are
correct by referring to the part list.
FRUs should not be replaced because of asingle, un-reproducible failure. Single failures
can occur from a variety of reasons that havenothing to do with a hardware defect such as:cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should only
be considered when a recurring problem exists.
If this is suspected, clear the error log and run
the test again. Do not replace any FRUs if log
errors do not reappear.
Be careful not to replace a non-defective FRU.

How to Use Error Messages:

Use the error
codes displayed on the screen to diagnose failures. If
more than one error code is displayed, begin the diagnosis
with the first error code. The cause of the first error code
can result in false error codes being displayed. If no error
code is displayed, see if the error symptom is listed in the“Symptom-to-FRU Index” on page 279.

Port Replicator Problems: If you suspect a
problem with the Port Replicator, see “Port Replicator
Checkout” on page 275.
How to Diagnose Multiple FRUs: When theadapter or device has more than one FRU, the error code
could be caused by either FRU. Before replacing multiple
FRUs, try removing or exchanging each FRU, one by one
in the designated sequence, to see if the symptoms
change.

ThinkPad 560 (2640)

265What to Do First:

The servicer must include thefollowing in the parts exchange form or parts return form
that is attached to the returned FRU.
1.
2.
3.
4.
5.
6.
7.
8.
9.

Name and phone number of servicer.
Date of service.
Date when part failed.
Date of purchase.
Failure symptoms, error codes appearing on
display, and beep symptoms.
Procedure index and page number in which
failing FRU was detected.
Failing FRU name and part number.
Machine type, model number, and serial number.
Customer's name and address.

Before checking problems with the computer, determine
whether or not the damage applies the warranty byreferring to the following:
Warranty Note
During the warranty period, the customer may be
responsible for repair costs if the computer damage
was caused by misuse, accident, modification,
unsuitable physical or operating environment, or
improper maintenance by the customer. The following
list provides some common items that are not covered
under warranty and some symptoms that may indicate
the system was subjected to stresses beyond normal
use:














266

LCD panel cracked by applying excessive force
or by being dropped.
Scratched (cosmetic) parts.
Cracked or broken plastic parts, broken latches,broken pins, or broken connectors caused byexcessive force.
Damage caused by liquid spilled into the system.
Damage caused by improperly inserting a
PCMCIA card or installation of an incompatible
card.
Damage caused by foreign material in the FDD.
Diskette drive damage caused by pressing thediskette drive cover or inserting diskettes withmultiple labels.
Damaged or bent diskette eject button.
Fuses blown by attaching a non-supported
device.
Forgotten computer password, making computerunusable.

IBM Mobile Systems - ThinkPad HMM Volume 3

If the following symptoms are present, they may
indicate damage caused by non-warranted
activity:Missing parts may be a symptom of unauthorized
service or modification.
HDD spindles can become noisy if subjected toexcessive force or by being dropped.
I9990303 errors can be caused by exposure tostrong magnetic fields.

How to Disable the Power-On Password
Important
This information is not available in this online HMM
format. See your IBM Servicer or IBM Authorized
Dealer for this this procedure.

Power Shutdown Switch:

The power shutdown
switch resets the system regardless of the microcode
status and forces the power off. Use this push button to
power-off when power is not completely off or the
microcode is in a hung state.
See “Bottom View” on page 322 for the power shutdown
switch.

ThinkPad 560 (2640)

267

Checkout Guide
Use the following procedure as a guide for computer
problems.
Note
The diagnostic tests are intended to test only IBM
products. Non-IBM products, prototype cards, ormodified options can give false errors and invalid
system responses.
1. Obtain the failing symptoms in as much detail as
possible.
2. Verify the symptoms by attempting to recreate thefailure by running the diagnostic test or by repeating
the same operation.
Note
To run the diagnostics, refer to “How to Run the
Diagnostics” on page 292.
3. Use the following table with the verified symptom todetermine which page to go to. Search thesymptoms column and find the description that best
matches your symptom; then go to the page shown in
the “Go to” column.
Symptoms (Verified)

Go toPower failure. (Thepower indicator does not
go on or stay on.)“Power Systems
Checkout” on page 272.

POST does notcomplete. No
beeps/error code areindicated.

“Symptom-to-FRU
Index” on page 279,
and then use the No
Beep Symptoms table.

POST beeps, but noerror codes are
displayed.

“Symptom-to-FRU
Index” on page 279,
and then use the Beep
Symptoms table.

POST detected an error
and displayed numericerror codes.

“Symptom-to-FRU
Index” on page 279,
and then use the
Numeric Error Codes
table.

The diagnostic test
detected an error anddisplayed an FRU code.

“How to Run the
Diagnostics” onpage 292.

The configuration is not
the same as theinstalled devices.

“Checking the Installed
Devices List” onpage 293.

268

IBM Mobile Systems - ThinkPad HMM Volume 3Symptoms (Verified)

Go to

Other symptoms (suchas LCD display
problems).

“Symptom-to-FRU
Index” on page 279,
and then use the Other
Symptoms table.

Symptoms cannot berecreated. (Intermittent
problems.)

Use the customer
reported symptoms and
go to “Symptom-to-FRU
Index” on page 279.

Memory Checkout
DIMM cards are available for increasing memory capacity.
DIMM

Displayed ValueNo DIMM installed

7808KB

8MB

16000KB

16MB

24192KB

32MB

40576KB

Memory errors might stop system operations, show error
messages on the screen, or hang the system.
Use the following procedure to isolate memory problems.
Note
Make sure that the DIMM card is fully installed into theconnector. A loose connection can cause an error.
1. Power off the computer and remove the DIMM cardfrom its slot (if installed).
2. Press and hold the F1 key; then power on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
3. Select Test and press Enter.
4. Select Memory and press Enter to run the memory
test on base memory. If an error appears, replace
the system board.
5. Power off the computer and reinstall the DIMM card;then power on the computer. Verify the memory size;
then test the memory. If an error appears, replace
the DIMM card.
If memory problems occur intermittently, use the loop
option to repeat the test. When the test detects an error,
an error log is printed on the printer connected to theparallel port. See “Error Log” on page 293 for more
information.

System Programs in Flash Memory: System setup
programs and diagnostic tests are stored in flash memory.

ThinkPad 560 (2640)

269

Flash Memory Update: A flash memory update isrequired for the following conditions:

New versions of system programs.
New features or options are added.

To update the flash memory, do the following:
1. Get the appropriate diskette containing the update.
2. Insert the System Program Service Diskette into
drive A and power on the computer.
3. Select Update system programs from the menu.

System Board Checkout
The processing functions are performed by the systemboard. When a numeric code calls the system board as a
FRU, use the following procedure to isolate the problem.
1. Run the system board test to verify the symptom.
This test verifies the system board. If no error is
detected, return to “Checkout Guide” on page 268.
2. If FRU code 10 appears, replace the system board.
3. Rerun the test to verify the fix.
If above procedure does not correct the problem, go to“Undetermined Problems” on page 290.

Keyboard/Auxiliary Input Device
Checkout
Remove the external keyboard if the internal keyboard is tobe tested.
If the internal keyboard does not work or an unexpectedcharacter appears, make sure that the flexible cable
extending from the keyboard is correctly seated in theconnector on the system board.
If the keyboard cable connection is correct, run the
Keyboard Test by doing the following:
1. Go to the diagnostic menu screen by pressing Ctrl+A
in the Easy-Setup screen.
2. Press Ctrl+K; a layout of the keyboard appears on
the screen.
3. Check that when each key is pressed, the key's
position on the keyboard layout on the screenchanges to a black square.
Note
When a Fn key is pressed, a black square briefly
appears.
If the tests detect a keyboard problem, do the following
one at a time to correct the problem. Do not replace a
non-defective FRU.



270

Reseat the keyboard cable.
Replace the keyboard.
IBM Mobile Systems - ThinkPad HMM Volume 3

Replace the system board.

The following auxiliary input devices are supported for thiscomputer.


Numeric keypad
Mouse (PS/2 compatible)
External keyboard (with keyboard/mouse cable)

If any of the above devices do not work, reseat the cableconnector and repeat the failing operation.
If the problem does not occur again, recheck theconnector.
If the problem is not corrected, replace the device, andthen the system board.

TrackPoint III Checkout
If the TrackPoint III will not work, check the configuration in
the ThinkPad Features program. If the configuration of the
TrackPoint III is disabled, select Enable to enable it.
If this does not correct the TrackPoint III problem, continue
with the following.
The TrackPoint III does automatic compensations to adjust
the pointer sensor. During this process, the pointer moves
on the screen automatically for a short time. This
self-acting pointer movement can occur when a slight,
steady pressure is applied to the TrackPoint III pointerwhile the computer is powered on or while the system isrunning, or when re-adjustment is required because thetemperature has exceeded its normal temperature range.
This symptom does not indicate a hardware problem. No
service actions are necessary if the pointer movement
stops in a short period of time.
If a click button problem or pointing stick problem occurs,
do the following:
1.
2.
3.
4.

Go to the Easy-Setup screen.
Select an item with the pointing stick.
Press either the left or right click button.
Verify that both buttons work correctly.

If either the pointing stick or the click button do not work,
do the following actions one at a time to correct the
problem. Do not replace a non-defective FRU.


Reseat the keyboard cables.
Replace the keyboard.
Replace the system board.

Diskette Drive Test
Do the following to isolate the problem to a controller,
drive, or diskette. A scratch, write enabled, non-defective
2HD diskette is required.

ThinkPad 560 (2640)

271

FDD-1 represents external diskette drive attached throughthe external diskette drive connector. FDD-2 represents
the port replicator.
Warning: Make sure that the diskette does not havemore than one label attached to it. Multiple labels cancause damage to the drive or can cause the drive to fail.
Do the following to select the test device:
1. Select the advanced diagnostics mode and selectTool; then select the FDD-1 or FDD-2 icon and press
the spacebar. A √ mark appears next to the selected
icon. Insert the blank diskette when instructed.
2. Run the diskette drive test.
3. If the controller test detects an error, FRU code 10
appears. Replace the system board.
4. If the controller test runs without errors, the drive
read/write tests start automatically.
5. If the drive test detects an error, FRU code 50 for
FDD-1 or 51 for FDD-2 appears. If the diskette itself
is known to be good, replace the drive.
6. If FDD-2 test detects an error, move the drive to thecomputer's diskette drive connector directly, if
possible, and test it again as FDD-1.
If no errors occur in the FDD-1 position, the drive is
not defective. Go to “Port Replicator Checkout” onpage 275 to isolate the replicator problem.

Status Indicator Checkout
If an LED problem occurs, do the following:
1. Power off the computer
2. Power on the computer
3. All the LEDs in the indicator panel turn on for a
moment soon after the computer is powered-on.
Make sure that all LEDs turn on.
If the problems remains, replace the system board.

Power Systems Checkout
To verify the symptom of the problem, power on thecomputer using each of the power sources as follows.
1. Remove the battery pack and diskette drive.
2. Connect the AC Adapter and check that power is
supplied.
3. Disconnect the AC Adapter and install the charged
battery pack; then check that power is supplied by thebattery pack.
If you suspect a power problem, see the appropriate power
supply check listed below.




272

“Checking the AC Adapter” on page 273.
“Checking Operational Charging” on page 273.
“Checking the Battery Pack” on page 274.
IBM Mobile Systems - ThinkPad HMM Volume 3“Checking the Backup Battery” on page 275.

Checking the AC Adapter:

You are here
because the computer fails only when the AC Adapter is
used.





If the power problem occurs only when the port
replicator is used, replace the replicator.
If the power-on indicator does not turn on, check thepower cord of the AC Adapter for correct continuity
and installation.
If the operational charge does not work, go to“Checking Operational Charging.”

1. Unplug the AC Adapter cable from the computer andmeasure the output voltage at the plug of the AC
Adapter cable. See the following figure.

(16 - 10 V)
Pin

Voltage (V dc)

1+14.5 to +17.0

2

GroundReplace the system board.
If the problem is not corrected, go to“Undetermined Problems” on page 290.
 If the voltage is not correct, go to the next step.
Unplug the AC Adapter cable from the ac power
outlet and wait five minutes or longer to allow theover-voltage protection circuit to be fully discharged
and initialized.
Plug the AC Adapter cable into the ac power outlet.
Measure the output voltage of the AC Adapter.
If the voltage is still not correct, replace the AC
Adapter.



2.

3.
4.
5.

Note
An audible noise from the AC Adapter does notalways indicate a defective adapter.

Checking Operational Charging: To check
operational charging, use a discharged battery pack or abattery pack that has less than 50% of the total power
remaining when installed in the computer.

ThinkPad 560 (2640)

273

Perform operational charging. If the battery statusindicator does not turn on, remove the battery pack andleave it to return to room temperature. Reinstall thebattery pack. If the charge indicator still does not turn on,
replace the battery pack.

Checking the Battery Pack:

Battery charging will
not start until the Fuel-Gauge shows that less than 95% of
the total power remains; with this condition the battery
pack will charge to 100% of its capacity. This protects thebattery pack from being over-charged or having ashortened life.
Do the following:
1. Power off the computer.
2. Remove the battery pack and measure the voltage
between battery terminals 1 (+) and 4 (−). See thefollowing figure.

3
5 4

2

1

Terminal

Voltage (V dc) / Signal

1+0 to +13.5

2

Send

3

Thermal4

Ground (−)

5

SelectNote
Signal lines, not used in these steps, are used forcommunication between the system and thebattery.
3. If the voltage is less than +11.0 V dc, the battery packhas been discharged. Recharge the battery pack.
If the voltage is still less than +11.0 V dc after
recharging, replace the battery.
Note
If the voltage of the battery pack is 0 V, it is not
defective.

274

IBM Mobile Systems - ThinkPad HMM Volume 3

4. If the voltage is more than +11.0 V dc, measure theresistance between battery terminals 3 and 4. The
resistance must be 4 to 30 K ohm.
If the resistance is not correct, replace the battery
pack. If the resistance is correct, replace the systemboard.

Checking the Backup Battery
1. Power off the computer and unplug the AC Adapter
from the computer.
2. Turn the computer upside down.
3. Remove the DIMM cover and backup battery (see“1010 Backup Battery” on page 298).
4. Measure the voltage of the backup battery. See thefollowing figure.
Note: Be careful not to measure the wrong side of
the backup battery.

Black (-)

Red (+)

SONY

+

Wire

Voltage (V dc)

Red+2.5 to +3.7

Black

GroundIf the voltage is correct, replace the system board.
If the voltage is not correct, the backup battery has
been discharged. Replace the backup battery.
If the backup battery discharges quickly after
replacement, replace the system board.

Port Replicator Checkout
Use the following procedure to isolate a port replicator
problem. A port replicator attaches to the system
expansion connector at the bottom of the computer.
1. Power off the computer.
2. Remove the failing devices from the replicator.
3. Unplug the AC adapter from the replicator, if
attached.
4. Remove the port replicator from the computer.

ThinkPad 560 (2640)

275

5. Reconnect the failing device directly to the computer.
(If another device already connected to the computer,remove it first.)
6. Go to the “How to Run the Diagnostics” on page 292
and run the diagnostics.
7. If the advanced diagnostic device test does not findan error, suspect a problem with the port replicator of
the system expansion bus.
8. Power off the computer and reconnect the port
replicator.
9. Power on the computer and run the following
advanced diagnostic tests:
 Serial port test with the wrap plug installed on
the replicator.
 Parallel port test with the wrap plug installed on
the replicator.
 FDD-2 device test on the failing device withscratch diskette.
10. If diagnostic errors appear, replace the replicator or
diskette drive attachment unit.
If the problem remains after the replacement, replace
the system board.
11. If power problems appear only when using thereplicator, replace the replicator.

Power Management Features
Three power management modes are provided by thecomputer to reduce power consumption and prolong
battery power.

Standby Mode:

When in standby mode the following

occurs:The LCD backlight turns off.
The hard disk motor stops.

Events that cause the computer to enter standby mode:Standby requested by the Fn key. (Fn+F3)
No activity under auto-standby enabled by theThinkPad Features program.

Events that cause the computer to exit or resume standbymode:(Resume) Any key operation.

Suspend Mode: When in suspend mode, thefollowing, in addition to the four actions of standby mode,
occur:


276

The LCD is powered-off.
The hard disk is powered-off.
The CPU is stopped.

IBM Mobile Systems - ThinkPad HMM Volume 3Notes
1. In the ThinkPad Features Program, the computercan be set to “Will not suspend even if LCD isclosed.”2. When the computer is powered with ac power
and is used with one of the communication PC
cards, the computer enters standby mode; thePC card and application program remain active.
3. The computer cannot enter suspend mode while
a communication link is running.
Events that cause the computer to enter suspend mode:







Suspend mode is requested by the Fn key (Fn+F4).
The LCD is closed.
The specified time has elapsed from the lastoperation with the keyboard, mouse, hard disk drive,
parallel connector, or diskette drive; or the AC
Adapter is plugged in. The time is specified by
Suspend Timer in the ThinkPad Features program.
The battery condition is low. The battery power
indicator blinks orange.
Either the PS2 OFF or PS2 SUSpend command is
set in the ThinkPad Features program.

Events that cause the computer to exit or resume suspend
mode:







(Resume) The LCD is opened.
(Resume) The real time clock alarm is signaled.
(Resume) The ring indicator (RI) is signaled by aserial or PCMCIA device.
(Resume) The Fn key is pressed.
(Resume) An external keyboard key is pressed while
operating with ac power.
(Exit) Timer conditions are satisfied for enteringhibernation mode.

Hibernation Mode:

When in hibernation mode, thefollowing occurs:The system status, RAM, VRAM, and setup data are
stored on the hard disk.
The system is powered-off.
Note

The computer cannot enter hibernation mode when
the computer is powered with ac power and acommunication PC card is used.
Events that cause the computer to enter hibernation mode:Hibernation mode is requested by the Fn key(Fn+F12).
Timer conditions are satisfied in suspend mode.
A critical low battery condition occurs.
ThinkPad 560 (2640)

277



The PS2 HIBernation command is set in the
ThinkPad Features program.

Event that causes the computer to exit hibernation mode.
The power-on switch is operated.

When power is turned on, the hibernation history in theboot record on the hard disk is recognized and systemstatus is restored from the hard disk to resume operation.

278

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom-to-FRU Index
The Symptom-to-FRU Index lists the symptoms and errors
and the possible causes. The most likely cause is listed
first.
Note
Perform the FRU replacement or actions in thesequence shown in the “FRU/Action” columns. If a
FRU does not solve the problem, put the original partback in the computer. Do not replace a non-defective
FRU.
This index can also be used to help you decide which
FRUs to have available when servicing a computer.
Numeric error codes show the errors detected in POST or
system operation. In the following error codes, X can be
any number.
If no codes are available, use narrative symptoms.
If the symptom is not listed, go to “Undetermined
Problems” on page 290.
Note
For IBM devices not supported by diagnostic codes in
the ThinkPad notebook computers, see the manual forthat device.

Numeric Error Codes
Symptom / Error

FRU / Action in Sequence

10X

1. System Board
101: Interrupt failure.
102: Timer failure.
103: Timer interrupt
failure.
104: Protected mode
failure.
105: Last 8042
command not
accepted.
107: NMI test failure.
108: Timer bus test
failure.
109: Low meg-chip
select test.

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Symptom / Error

FRU / Action in Sequence

110(Planar parity.)

1. Go to “Memory
Checkout” onpage 269.
2. DIMM Card
3. The computer is
attached to the
expansion unit.
4. System Board

111(I/O parity.)

1. Go to “Memory
Checkout” onpage 269.
2. System Board

161(Dead battery.)

1. Go to “Checking the
Backup Battery” onpage 275.
2. Backup Battery
3. System Board

163(Time and Date was not
set.)

1. Reseat the keyboard
connector on thesystem board.
2. Set Time and Date.
3. System Board

173(Configuration data waslost.)

1. Reseat the keyboard
connector on thesystem board.
2. Select OK in the error
screen; then set thetime and date.
3. Backup Battery
4. System Board

174(Configuration error:
Perform“Checking theInstalled Devices List” onpage 293 before changing
any FRUs.)

1. Check Device
Configuration.
2. System Board
3. Diskette Drive
Assembly
4. Hard Disk Drive
Assembly

184(POP check sum error.)

1. Reset the POP(power-on password)in Easy-Setup.

190(Depleted battery pack was
installed when the power
was on.)1. Go to “Checking theBattery Pack” onpage 274.

191XX(PM initialization error.)

1. System Board

195(The configuration read fromthe hibernation area does
not match the actual
configuration.)

1. Check if theconfiguration waschanged.
For example, check if
the DIMM card isadded.

280

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

196(Read error occurred in thehibernation area of theHDD.)

1. Run the hard disk
drive test.
2. Hard Disk Drive

1XX

1. System Board

2XX
201: Memory data
error.
202: Memory line error
00–15.
203: Memory line error
16–23.
205: Memory test
failure on on-board
memory.
221: ROM to RAM
remap error.

1. Go to “Memory
Checkout” onpage 269.
2. DIMM Card
3. System Board

301, 303, 304, 305, 3XX(301: Keyboard error.)

1. Go to“Keyboard/Auxiliary
Input Device
Checkout” onpage 270.
2. Keyboard
3. External Numeric
Keypad
4. External Keyboard
5. Keyboard/Mouse Cable
6. System Board

601, 6XX(601: Diskette drive orcontroller error.)

1. Go to “Diskette Drive
Test” on page 271.
2. Diskette Drive
Assembly
3. Diskette
4. System Board

602(Diskette read error.)

1. Go to “Diskette Drive
Test” on page 271.
2. Diskette
3. Diskette Drive
Assembly

604(Unacceptable ID was readfrom the diskette drive.)

1. Go to “Diskette Drive
Test” on page 271.
2. Diskette Drive
Assembly
3. System Board

11XX
1101: Serial_A test failure.

1. Serial Device
2. Communication Cable
3. System Board

12XX
1201: Serial_B test failure.

1. System Board(Infrared)ThinkPad 560 (2640)

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Symptom / Error

FRU / Action in Sequence

17XX

1. Hard Disk Drive
2. System Board

1701: Hard disk
controller failure.
1780, 1790: Hard disk
0 error.
1781, 1791: Hard disk
1 error.
24XX(2401: System board video
error.)

1. System Board

808X

1. PCMCIA Slot
Assembly
2. PCMCIA Device
3. System Board

8081: PCMCIA
presence test failure.
(PCMCIA revision
number also checked.)
8082: PCMCIA register
test failure.
860X(Pointing device error when
TrackPoint III is disabled.)

1. External Mouse
2. External Keyboard
3. System Board

8601: System bus
error–8042 mouseinterface.
8602: External mouseerror.
8603: System bus
error or mouse error.
861X(Pointing device error when
TrackPoint III is enabled.)
8611: System bus
error–I/F between 8042
and IPDC.
8612: TrackPoint error.
8613: System board or
TrackPoint error.
I9990301
I9990302
I9990305
I9990301: Hard diskerror.
I9990302: Invalid harddisk boot record.
I9990305: No bootabledevice.

I9990303(Bank–2 flash ROM checksum error.)282

1. Reseat the keyboard
cable on the systemboard.
2. Keyboard
3. External Mouse
4. System Board

1. Check that theoperating system isinstalled in the HDD.
If not, install theoperating system.
2. Reseat the bootdevice.
3. Check the startup
sequence for thecorrect boot device.
4. Check that theoperating system has
no failure and isinstalled correctly.
1. System Board

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

Other codes not listedabove

1. Go to “Undetermined
Problems” onpage 290.

Diagnostic Error Codes
If an error is detected, the following appears:

Large X on the left side of the device icon.
Device ID (three digit)
Error code (two digit)
FRU code (four digit)

Start

Restart1x
SystemBoard Memory Display HDD
DEV 001
FRU 02
ERR 0010

FDD-1 PCMCIA

ParallelOK

2
SerialDSPCDROMInfrared

Audio

FDD-2

Exit

The device ID and error code are used to indicate thedetail portion of the FRU which caused the error. If
replacing a FRU does not correct the problem, see thedevice ID or error code from the previous failure. If they
have changed, the cause might be because the new FRU
is detective or that the FRU was incorrectly installed.

Device ID: If an error is detected by the diagnostic
tests, a three digits device ID is displayed. The device ID
indicates suspected device.
Icon

SystemBoard

DeviceID

Suspected Device

001

System Board

003

Keyboard

007

Math Coprocessor

086

Pointing Device

002

MemoryMemoryThinkPad 560 (2640)

283

Icon

DeviceID

Suspected Device

050

Display

017

Hard Disk Drive

006

External Diskette Drive
or FDD Connector of thecomputer

066

External Diskette Drive
or FDD Connector of theport replicator

080

PCMCIA

009

Parallel

011,
012

Serial

103

IR

150

Audio (ESS)

Display

HDD

1
FDD-1

2
FDD-2

PCMCIA

Parallel

SerialInfraredAudio

FRU Codes:

If an error is detected by the diagnostic
tests, a four-digit FRU code is displayed. The FRU code
indicates two suspected FRUs. Replace the FRU that isindicated by the two leftmost digits first, then replace the
FRU that indicated two rightmost digits. No FRU is
assigned to code 00. If only one FRU is suspected, theother FRU code is filled with zeros. See the reference
page before replacing the FRU.
FRU Code

FRU

10

System Board

30

Reserved

32

External Keyboard

33

External Mouse

40

LCD Assembly

45

External CRT

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FRU Code

FRU

50

1. Reseat the Diskette Drive (FDD-1)
2. Diskette Drive (FDD-1)

51

1. Reseat the Diskette Drive (FDD-2)
2. Diskette Drive (FDD-2)

60

1. Reseat the Hard Disk Drive
2. Hard Disk Drive72

PCMCIA Slot Assembly

If the problem still remains after replacement of the FRUs,
go to “Undetermined Problems” on page 290.

Beep Symptoms
Symptom / Error

FRU / Action in Sequence

Continuous beeps.

System Board

One beep and a blank,
unreadable, or flashing
LCD.

1. Reseat the LCD
connector.
2. LCD Assembly
3. System Board

One beep, and the message“Unable to access bootsource.”1. Boot device
2. System Board

One long, two short beeps
and a blank or unreadable
LCD.

1. System Board
2. LCD Assembly

One long beep followed byfour short beeps each time
the power switch isoperated.
(System cannot power-on
due to low battery voltage.)

Connect the AC Adapter
or install a fully charged
battery.

One beep every second.
(System is shutting down
due to low battery voltage.)

Connect the AC Adapter
or install a fully charged
battery (allows system tocomplete shutdown
before changing thebattery).

Two short beeps with error
codes.

POST error. See“Numeric Error Codes” onpage 279.

Two short beeps with blankscreen.

System Board

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No Beep Symptoms
Symptom / Error

FRU / Action in Sequence

No beep, power-on indicator
not on, and a blank LCD
during POST.

1. Go to “Power
Systems Checkout”
on page 272.
2. System Board
3. Power sources

No beep, power-on indicatoron, and a blank LCD during
POST.

1. System Board

No beep, power-on indicatoron, and a blinking cursor
only during POST.

1. System Board

No beep during POST but
system runs correctly.

1. Turn the volume up
and check the
speaker.
2. Speaker
3. System Board

LCD-Related Symptoms
Important
The LCD for the notebook computer contains over
921 000 thin-film transistors (TFTs). A small numberof missing, discolored, or lighted dots (on all the time)
is characteristic of TFT LCD technology, but excessive
pixel problems can cause viewing concerns. The LCD
should be replaced if the number of dots satisfies thefollowing condition:


The number of missing, discolored, or lighted
dots in any background is 21 or more.

Symptom / Error

FRU / Action in Sequence

No beep, power-on indicatoron, and a blank LCD during
POST.

1. System Board

LCD backlight notworking, orLCD too dark, or

1. Reseat the LCD
connectors.
2. LCD Assembly

LCD brightness cannot
be adjusted, orLCD contrast cannot
be adjusted.



LCD screen
unreadable, orCharacters missing
pels, or
Screen abnormal, orWrong color displayed.





286

1. See important notefor “LCD-Related
Symptoms.”
2. Reseat all LCD
connectors.
3. LCD Assembly
4. System Board

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

LCD has extra horizontal orvertical lines displayed.

LCD Assembly

Keyboard/TrackPoint III-Related
Symptoms
Symptom / Error

FRU / Action in Sequence

Keyboard (one or morekeys) does not work.

1. Reseat the keyboard
cable on the systemboard.
2. Keyboard
3. System Board

TrackPoint III does notwork.

1. Reseat the keyboard
cable on the systemboard.
2. Go to “TrackPoint III
Checkout” onpage 271.
3. Keyboard
4. System Board

Pointer moves automaticallyor does not work correctly.

1. See “TrackPoint III
Checkout” onpage 271.

Indicator-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Indicator incorrectly remains
off or on, but system runs
correctly.

1. System Board

Battery power statusindicator blinks from green,
yellow, to orange.

1. Check that a correct
battery is installed.
2. Battery Pack
3. System Board

Power-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Power shuts down during
operation.

1. Go to “Power
Systems Checkout”
on page 272.
2. Battery Pack
3. Remove the battery
pack and let it cool for
two hours.
4. Power sources

The system will not
power-off.
(See “Power Shutdown
Switch” on page 267.)

1. Press the power
shutdown switch.
2. System Board

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Function-Related Symptoms
Symptom / Error

FRU / Action in Sequence

The system will not suspendor resume by opening or
closing the LCD.

1. Go to “Suspend
Mode” on page 276,
and check that thecomputer can entersuspend mode.
2. Boot an operating
system and press
Fn+F4. If thecomputer enterssuspend mode,suspect that theapplication program is
not working properly.
3. LCD Assembly
4. System Board

Battery Fuel-Gauge does
not go higher than 90%.

Go to “Checking theBattery Pack” onpage 274 and see thenote.

Memory count (size)
appears different from
actual size.

Go to “Memory Checkout”
on page 269.

System configuration does
not match the installed
devices.

Go to “Checking theInstalled Devices List” onpage 293.

System hangs intermittently.

Go to “Intermittent
Problems” on page 289.

Peripheral-Device-Related Symptoms
Symptom / Error

FRU / Action in Sequence

External display does notwork correctly.

1. See “External Display
Self-Test” in“Common Devices
Checkout” section.

Printer problems.

1.
2.
3.
4.

Serial or parallel port device
problems.

1. Device
2. Device Cable
3. System Board

288

Run Printer Self-test.
Parallel Port Device
Cable
System Board

IBM Mobile Systems - ThinkPad HMM Volume 3

Infrared-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Unable to communicate
using the Infrared (IR) Port.

1. Make sure the setup
for the IR is correct.
2. Make sure there areno fluorescent lights
near the computer.
The computer may
receive optical noisefrom the fluorescentlight.
3. Run the advanced
diagnostic test. If anerror occurs and a
FRU code is displayed,replace the parts
shown by the FRU
code.

Other Symptoms
Symptom / Error

FRU / Action in Sequence

Errors occur only when Port
Replicator is used.

See “Port Replicator
Checkout” on page 275.

PCMCIA slot pin isdamaged.

PCMCIA Slots AssemblyNote
If you cannot find a symptom or error in this list andthe problem remains, see “Undetermined Problems”
on page 290.

Intermittent Problems
Intermittent system hang problems can be caused by avariety of reasons that have nothing to do with a hardware
defect, such as: cosmic radiation, electrostatic discharge,or software errors. FRU replacement should only beconsidered when a recurring problem exists.
When analyzing the intermittent problem, do the following:
1. Run the advanced diagnostic test for the systemboard in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by
the FRU code. Rerun the test to verify that no moreerrors exist.

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289

Undetermined Problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices areincorrect, a short circuit is suspected, or the system is
inoperative. Follow the procedures below to isolate thefailing FRU (do not isolate non-defective FRUs).
Verify that all attached devices are supported by thecomputer.
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 272.)
1. Power off the computer.
2. Check the cables, wires, and connectors for shortcircuits and open circuits. Visually check them fordamage. If any problems are found, replace the
FRU.
3. Remove or disconnect all of the following devices.
a. Non-IBM devices
b. Devices attached to the expansion bus
connector
c. Printer, mouse, and other external devices
d. Battery packe. Hard disk drive
f. Diskette drive
g. DIMM cardh. PC Cards
4. Power on the computer.
5. Determine if the problem has changed.
6. If the problem does not occur again, reconnect theremoved devices one at a time until you find thefailing FRU.
7. If the problem remains, replace the following FRUs
one at a time. Do not replace a non-defective FRU.
 LCD assembly System board

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IBM Mobile Systems - ThinkPad HMM Volume 3

Related Service ProceduresThis section provides information about the following:









“Status Indicators”“How to Run the Diagnostics” on page 292“Error Log” on page 293“Checking the Installed Devices List” on page 293“How to Run a Low-Level Format” on page 294“PC Test Card LED” on page 294“Fn Key Combinations” on page 295“Keyboard/Auxiliary Input Device Checkout” onpage 270

Status Indicators
The system status indicators show the current computer
status in different colors (green, yellow, and orange).

1

1

2

3

4

5

6

7

ThinkPad 560 (2640)

291

Symbol

Color

Meaning.1/Battery

Green

Battery fully
chargedOrangeBattery charging

Blinking orange

Battery needs
charging.2/Hard Disk In
Use

OrangeData is readfrom or written to
the hard disk
drive.

.3/Numeric Lock

Green

Numeric keypadon the keyboard
is enabled.

Green

Caps lock modeis enabled.

.5/Scroll Lock

Green

Arrow keys canbe used as
screen-scroll
function key.

.6/Suspend
Mode

Green

Suspend mode

Blinking GreenEntering
suspend mode

.7/Power On

GreenPower on1
.4/Caps LockA

How to Run the Diagnostics
Use either the TrackPoint III or the cursor move keys tointeract with the tests. The Enter key works the same as
selecting the OK icon to reply OK.
Note
The following tools are required:

FDD:
Parallel:
Serial:PCMCIA:

Erasable 2HD diskette
Wrap plug (P/N 72X8546)
Wrap plug (P/N 72X8546)
PC Test Card (P/N 35G4703)

1. Press and hold the F1 key; then power on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
2. Select Test and press Enter.
3. Select a device and press Enter to run the test.
4. The test progress screen appears.
5. OK appears when the test ends without any errors.
6. Start the Advanced Diagnostic test by pressing
Ctrl+A on the basic diagnostic menu screen.

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IBM Mobile Systems - ThinkPad HMM Volume 3

7. Select Tool to install the tools.
8. Select a device, press the Spacebar and install thetool. Multiple devices can be selected by repeating
this step.
9.
10.
11.
12.

A √ mark appears beside the selected devices.
Select OK and press Enter if the selection is OK.
Select a device and press Enter to start the tests.
Select Test All to test all devices.
Select Loop Test to run the tests in a repeated loop.

A loop option menu appears in which a device loop or
all-device loop can be selected. Select a device andpress the Spacebar to select a device. Repeat thisstep to select multiple devices. Press Enter to startthe diagnostic loop. If no device is selected, alldevice tests are looped.
13. To exit the loop, keep pressing Ctrl+Pause until thetest exits. A beep sounds to notify that the exit
interrupt is sensed by the test program.

Error Log
Diagnostic errors are printed on the printer that is attachedto the parallel port when the error is detected. The error isalso logged in the system memory.
Do the following to display the errors.
1.
2.
3.
4.
5.

End the test, if it is running.
Press Ctrl+A to select the advanced diagnostic mode.
Press Ctrl+E.
The error log appears.
To exit the screen, select the cancel icon or press
Esc.

The error log is not saved when the system is powered-off.

Checking the Installed Devices List
If a device is installed but the icon appears in a gray shaderather than a dark shade on the basic diagnostics screen,
the device is defective. Reseat the device connectors. If
the symptom remains, replace the device or the systemboard. If needed, adjust the contrast control to clearly
distinguish the shades of the icon.
If a device that is not installed appears in a dark shade (forexample, FDD-2 appears in a dark shade when NO
second FDD is installed), do the following:
1. Replace the first device in the configuration, such asan FDD-1.
2. If the problem remains, replace the system board.
The Parallel, and Serial icons are always displayed in adark shade because the icons represent subsystems of thesystem board and not the attachment of the devices.

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293

The FDD-1 icon represent the first drive in the system
configuration for each type of device. For ThinkPad 560,
FDD-1 represents an external diskette drive attachedthrough the external diskette drive connector. Similarly,
the FDD-2 icon represent the second drive, usuallyattached through a port replicator.

How to Run a Low-Level Format
Do the following to format the hard disk.
Warning: Make sure the drive address to be formatted iscorrect. This procedure will erase all information on thedisk.
1. Power off the computer.
2. Insert the ThinkPad hardware maintenancediskette Ver 1.20 into diskette drive A and power on
the computer.
3. Select Format the hard disk from the main menu.
4. Select the drive from the menu.
5. Follow the instructions on the screen.

PC Test Card LED
The green LED on the PC test card turns on when the
PCMCIA test is running. If the LED does not turn on,
check that the card is installed correctly by reseating thecard. If it still does not turn on after it is reseated, try
using another slot for the test. If the LED still does notturn on and the test fails, replace the FRU shown by the
diagnostic error code.

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IBM Mobile Systems - ThinkPad HMM Volume 3

Fn Key Combinations
The following table shows the Fn key and function key
combinations and their corresponding functions.
The Fn key works independently from the operating
system. The operating system obtains the status throughthe system management interface to control the system.
Fn +Description

F1

Reserved

F2

Fuel-Gauge display ON/OFF

F3Standby mode invocation

F4

Suspend mode invocation

F5

Reserved

F6

Reserved

F7

LCD/CRT display switching

F8

Reserved

F9

Reserved

F10

Reserved

F11Power management mode switching(Toggles High Power, Intelligent, Economy)

F12

Hibernation invocation

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Product Overview (560)
The following table shows an overview of the system
features.
FeatureDescription

ProcessorIntel Pentium 100 MHz
Intel Pentium 120 MHz
Intel Pentium 133 MHz

Bus Architecture

PCI Bus

Memory (Standard)

8MB (on the system board)

Memory (Option)



CMOS RAM

114 Bytes

VGA VideoDiskette Drive(External)Hard Disk Drive

8MB, 16MB, 32MB
DIMM card (max.
40MB)

11.3-inch, 256 colors,
800×600 pixel DSTN
color LCD
12.1-inch, 64K colors,
800×600 pixel TFT
color LCD
1.44MB (2-mode),
3.5-inch
1.44MB (3-mode),
3.5-inch, for Japan
810MB, 2.5-inch, IDE
interface
1.08GB, 2.5-inch, IDE
interface
2.11GB, 2.5-inch, IDE
interface

I/O Port

Headphone
Microphone
Port replicator

Audio






16-bit Audio
Internal speaker
Internal microphone
Mechanical volume

Infrared Transfer



IrDA** 1.0

PCMCIAOne Type-IIIor two Type-II

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IBM Mobile Systems - ThinkPad HMM Volume 3

FRU Removals and Replacements
This section contains information about removals andreplacements.








Do not damage any part. Only certified and trained
personnel should service the computer.
The arrows in the “Removals and Replacements”
section show the direction of movement to remove a
FRU, or to turn a screw to release the FRU. The
arrows are marked in numeric order, in squarecallouts, to show the correct sequence of removal.
When other FRUs must be removed before removing
the failing FRU, they are listed at the top of the page.
To replace a FRU, reverse the removal procedureand follow any notes that pertain to replacement.
See “Locations” for internal cable connections andarrangement information.
When replacing a FRU, use the correct screw size asshown in the procedures.
Safety Notice 1: Translation on page 8

Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or othersmall parts, are in place and are not left loose inside
the computer. Verify this by shaking the computerand listening for rattling sounds. Metallic parts or
metal flakes can cause electrical short circuits.
Safety Notice 3: Translation on page 10
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack asrequired by local ordinances or regulations.
Safety Notice 8: Translation on page 14
Before removing any FRU, power-off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.

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1010 Backup Battery
Safety Notice 4: Translation on page 11
The lithium battery can cause a fire, explosion, orsevere burn. Do not recharge it, remove its polarized
connector, disassemble it, heat it above 100°C(212°F), incinerate it, or expose its cell contents towater. Dispose of the battery as required by local
ordinances or regulations. Use only the battery in theappropriate parts listing. Use of an incorrect battery
can result in ignition or explosion of the battery.

Turn the computer upside down.

1
2

3

Step

Location (Quantity)

Length.1/

DIMM Cover (1)6 mm

Note: Make sure you use the correct screw.

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IBM Mobile Systems - ThinkPad HMM Volume 31020 DIMM Card (If installed)
Turn the computer upside down.

1
2

5
4
3

3

Step

Location (Quantity)

Length.1/

DIMM Cover (1)6 mm

Note: Make sure you use the correct screw.

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299

1030 Battery Pack
Turn the computer upside down.

1

2

300

IBM Mobile Systems - ThinkPad HMM Volume 31040 Frame

Battery Pack (1030)

2

1
2

6

Step

Location (Quantity)

Length.1/Base Cover (2)

12 mm

.2/

Base Cover (6)6 mm

Note: Make sure you use the correct screw.

3

5
4

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301

FrameKeyboard
7
7

6

6

Note
1. Be careful not to remove the Esc key when you
remove the frame. If Esc key is removed,
replace the key as shown.

2

Esc

1

1

F1

F2

2. When replacing the frame, check whether the
click buttons of the TrackPoint III can be pressed
correctly.
If the frame is not in place, the click buttons do
not work.

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IBM Mobile Systems - ThinkPad HMM Volume 31050 Keyboard Unit

Battery Pack (1030)

Step

Location (Quantity)

Length.1/Base Cover (2)

12 mm

.2/

Base Cover (12)6 mmNote: Make sure you use the correct screw.

Note
When replacing the frame, first replace the middle fourscrews that shown in black in the figure; then check
whether the click buttons of the TrackPoint III can bepressed correctly.
If the frame is not in place, the click buttons do not
work.

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3

5
4

Frame

Keyboard
7
7

6

6

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IBM Mobile Systems - ThinkPad HMM Volume 3

Note
Be careful not to remove the Esc key when you
remove the frame. If Esc key is removed, replace the
key as shown.

2

Esc

1

1

F1

F2

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305

306

IBM Mobile Systems - ThinkPad HMM Volume 31060 LCD AssemblyBattery Pack (1030)
Keyboard Unit (1050)

Step

Location (Quantity)

Length.1/Base Cover (2)

4 mm

.2/

LCD Assembly (2)

6 mm

.3/

LCD Cable (1)4 mm

Note: Make sure you use the correct screw.

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1070 SpeakerBattery Pack (1030)
Keyboard Unit (1050)

2

1

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IBM Mobile Systems - ThinkPad HMM Volume 3

1080 Hard Disk Drive
Warning
Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physicalshock. Incorrect handling can cause damage andpermanent loss of data on the hard disk. Before
removing the hard disk drive, have the user make a
backup copy of all the information on the hard disk.
Never remove the hard disk drive while the system isoperating or is in suspend mode.
Note
Remove the hard disk drive exactly as shown in the
figure. Do not apply any extra force to the hard disk
drive when removing it.
Battery Pack (1030)
Keyboard Unit (1050)

3
1

2

4
5
Step

Location (Quantity)

Length.1/

HDD Bracket (1)

6 mm

.5/

Hard Disk Drive (2)3 mm

Note: Make sure you use the correct screw.

ThinkPad 560 (2640)

309

1090 PCMCIA Slot AssemblyBattery Pack (1030)
Keyboard Unit (1050)
Note

Before removing and replacing the PCMCIA slot
assembly, make sure that the PCMCIA cards are
removed and the eject levers are not sticking out.

1

2

3

Step

Location (Quantity)

Length.1/

PCMCIA Slot Assembly (4)6 mm

Note: Make sure you use the correct screw.

310

IBM Mobile Systems - ThinkPad HMM Volume 31100 System Board
DIMM Card (If installed) (1020)
Battery Pack (1030)
Keyboard Unit (1050)
LCD Assembly (1060)
Speaker (1070)
Hard Disk Drive (1080)
PCMCIA Slot Assembly (1090)









Notes




The system unit serial number must be restored
when the system board is replaced. To restore
the system unit serial number, select the option“Set system identification” on the maintenancediskette. The flash ROM on the system board
contains the vital product data (VPD), that is, thesystem unit serial number, system board system
number, and other computer-unique data.
Do not power off the computer when restoring
the VPD. The system unit serial number label is
attached to the base cover.

2

1
Step

Location (Quantity)

Length.1/Base Cover (6)

4 mm
(Hex)

.2/

Base Cover (1)3 mm

Note: Make sure you use the correct screw.

ThinkPad 560 (2640)

311

When replacing

3

4

5

Step

Location (Quantity)

Length.4/

System Board (2)4 mm

Note: Make sure you use the correct screw.

6

312

IBM Mobile Systems - ThinkPad HMM Volume 31120 LCD Front Cover
Important
The LCD for the notebook computer contains over
921,000 thin-film transistors (TFTs). A small numberof missing, discolored, or constantly lighted dots ischaracteristic of TFT LCD technology, but excessive
pixel problems can cause viewing concerns. The LCD
should be replaced if the number of missing,
discolored, or lighted dots in any background is 21 or
more.

ThinkPad 560 (2640)

313

Notes:1. For the TFT LCD, the slide knob is one in step .4/.
2. The LCD front cover has several latches. Release
the latches as shown.

Step

Location (Quantity)

Length.2/

LCD Front Cover (3)M 2.6 x
6mm,
Flat
head

314

IBM Mobile Systems - ThinkPad HMM Volume 31130 LCD PanelLCD Front Cover (1110)

DSTN Panel

Step

Location (Quantity)

Length.1/

LCD Panel (4)M 2.5 x
6mm,
Flat
head

When replacing:
Connect the LCD connector to the inverter card bylining them up straight.

ThinkPad 560 (2640)

315

TFT Panel

Step

Location (Quantity)

Length.1/

LCD Panel (4)M 2.5 x
6mm,
Flat
head

Notes:
There are two types of rear covers for the ThinkPad
560 TFT LCD unit. Make sure which type you haveand follow the relevant information.
1. If there are bosses on the rear cover, put each boss
into each hole of the LCD panel assembly.

2. If there are no bosses on the rear cover, assemble
the panel as shown in the following figure.

316

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 560 (2640)

317

1140 Inverter Card (DSTN only)

LCD Front Cover (1120)
LCD Panel (1130)

Step

Location (Quantity)

Length.1/

Hinges (1)M 2.5 x
6mm,
Flat
head

318

IBM Mobile Systems - ThinkPad HMM Volume 31150 LCD Cable / Hinges








DIMM Card (If installed) (1020)
Battery Pack (1030)
Keyboard Unit (1050)
LCD Assembly (1060) file
LCD Front Cover (1120)
LCD Panel (1130)
Inverter Card (DSTN only)(1140)

DSTN
.1/.2/: LCD cable

.3/.4/: Hinges

Step

Location (Quantity)

Length.1/

LCD Cable (2)M 2.5 x
6mm,
Flat
head

.3/

Hinges (3)M 2.5 x
6mm,
Flat
head

ThinkPad 560 (2640)

319

TFT


.1/.2/: LCD cable

.3/.4/: Hinges

When replacing:See the following figure when replacing the LCD
cable.

Step

Location (Quantity)

Length.1/

LCD Cable (2)M 2.5 x
6mm,
Flat
head

.3/

Hinges (3)M 2.5 x
6mm,
Flat
head

320

IBM Mobile Systems - ThinkPad HMM Volume 3

Locations
Front View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/
.11/
.12/
.13/
.14/
.15/

LCD
Contrast Control
Brightness Control
Headphone Jack
Microphone/Line-In Jack
Volume Control
PCMCIA Slots
PC Card Eject Buttons
Battery Pack
TrackPoint III
LCD Latch
Fn KeyKeyboard
Indicator Panel
Built-In Microphone

1

15
14

DSTN

13

2
3
TFT

12

3
4
5

11

6
9

8

10

7

ThinkPad 560 (2640)

321

Bottom View
.1/
.2/
.3/
.4/
.5/

System-Expansion Connector
Power Shutdown Switch
Memory Slot
Memory-Slot CoverBattery Pack Latch

5

1

2
3

4

322

IBM Mobile Systems - ThinkPad HMM Volume 3

Rear View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/

Power Switch
IR PortExternal Diskette Drive Connector
External Monitor
Parallel Connector
Serial Connector
Security Keyhole
External-Input-Device Connector
Power JackThinkPad 560 (2640)

323

Notes324

IBM Mobile Systems - ThinkPad HMM Volume 3Parts Listing 560 (2640)

ThinkPad 560 (2640)

325

Index
1

2
3
4
5
6
7

8
9
10
10a
11
12
13
14
15
16
17
18

19
20
21

System Unit
LCD Assembly (11.3 DSTN)
20H4267(U.S.-2640, model 1xx, 3xx, 5xx)
LCD Assembly (12.1 TFT)
12J1600(U.S.-2640, model 2xx, Exx, Fxx)
Frame
10L2028
Keyboard (see keyboard section)
TrackPoint III
84G6536
Speaker
46H4133
EMI Bracket I/O
46H4149
System Board (100 MHz)
05K4302(U.S.-2640, model 5xx)
System Board (120 MHz)
05K4303(U.S.-2640, model Exx)
System Board (133 MHz)
05K4304(U.S.-2640, model Fxx)
System Board (133 MHz)
05K4305(U.S.-2640, model 1xx, 2xx)
PCMCAI Slot
46H4134
Rubber Cap I/O
46H4151
Base Cover
46H4084
EMI Spring
46H4145
DIMM Cover
46H4131PCMCIA Cover
46H4127
Backup Battery
46H4132
Bracket Battery Guide
46H4135
FDD Connector Cover
46H4128
Power Switch
46H4138
HDD Bracket
46H4137
Hard Disk Drive (540 MB)
39H2219
Hard Disk Drive (810 MB)
39H2220(U.S.-2640, model 5xx, Exx)
Hard Disk Drive (1.0 GB)
39H2221(U.S.-2640, model Fxx)
Note:
Order either of the below hard disk drives thatmatch the FRU number of the drive being replaced.
(U.S.-2640, model 1xx, 2xx, 3xx, 4xx)
Hard Disk Drive (2.1 GB)
83H7080
Hard Disk Drive (2.1 GB)
12J4569
HDD Flexible Cable
46H4136
Keyboard Sheet
46H4150
Battery Pack
46H4144

DC/DC Card
AC Adapter
AC Adapter Slim (2 plong)
External FDD (2-mode)(U.S.-2640, model 1xx, 2xx, 3xx, 4xx,
5xx, Exx, Fxx, Hxx)
External FDD (3-mode)
External FDD Cable
Screw Kit
Screw Cap

326

05K4300
85G6698
85G6738
10H4056

39F2086
39F2077
46H4143
66G5046

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD FRU (DSTN)

Index
1
2
3
4
5
6
7
8
9

System Unit
LCD Front CoverControl KnobLCD Panel (Order LCD Assembly)
SpacerInverter Card
Shield SheetLCD Cable
HingesLCD Rear Cover

20H4265
46H4158
N/A
46H4159
46H4152
46H4157
46H4156
46H4155
46H4153

Screw CoverScrew

66G5046
46H4160

ThinkPad 560 (2640)

327

LCD FRU (TFT)

Index
1
2
3
4
5
6
7

328

System Unit
LCD Front CoverControl KnobLCD Panel (Order LCD Assembly)
Shield SheetLCD Cable
HingesLCD Rear Cover

05K4603
11J9664
N/A
46H4165
46H4164
11J9663
46H4161

Inverter Card
Screw CoverScrew

82H5509
66G5046
46H3939

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
KoreanLatin Spanish
NorwegianPortuguese
Russian
SpanishSwedish / Finnish
Swiss
Turkish
U.K. English
U.S. English

20H4232
20H4230
20H4237
20H4225
20H4224
20H4222
20H4221
20H4235
20H4233
20H4223
20H4239
20H4140
20H4236
20H4227
20H4231
20H4238
20H4226
20H4229
20H4228
20H4234
20H4220
20H4219

ThinkPad 560 (2640)

329

Common/Option Parts List
Miscellaneous Parts
Screw Kit
(Includes the following:)
M2 x 3 Screw (1)M2.5 x 4, black (5)M2.5 x 6, black (19)M2.5 x 12, black (2)M3 x 3 (2)Hex Stud (6)46H4143

Options
Notes:
1. When you replace the AC Adapter with a new one,use the one for the country you are in even if thecomputer is from different country.
2. The warranty for the system unit does not apply to all
options.
Headset1.08 GB Hard Disk Drive Assembly
Microphone
PS/2 Miniature Mouse
ThinkPad 560 Port Replicator
DIMM 8MB
DIMM 16MB
DIMM 32MB
Interface Cable, System to Keyboard
Interface Cable, Keyboard to Keypad
Mini-DIN to Mini-DIN Cable.

330

85G1529
39H2221
66G7871
95F5723
46H4107
42H2767
42H2768
42H2769
84G2531
84G2532
84G6474

IBM Mobile Systems - ThinkPad HMM Volume 3

Numeric Keypad
BelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
Icelandic
ItalianJapanese
Norwegian
SpanishSwedish / Finnish
Swiss / French
Swiss / German
Turkish
U.K. English
U.S. English

95F5741
95F5466
95F5467
95F5467
95F6313
95F6314
95F5467
95F5741
95F5467
95F6316
79F6401
95F5467
95F6315
95F5468
95F5711
95F5715
95F5467
95F5741
95F5741

Black Keypad
FrenchGermanItalianSwedish
U.K. English
NorwayU.S. English

84G6286
84G6280
84G6292
84G6304
84G6298
84G6310
84G2530

Black Keyboard
FrenchGermanItalianSwedish
U.K. English
NorwayU.S. English

84G6285
84G6279
84G6291
84G6303
84G6297
84G6309
84G2529

Accessories
Keyboard/Mouse Cable

54G0444

Tri-Connector Wrap PlugPC Test Card
Audio Wrap Cable
Screwdriver Kit
ThinkPad Hardware MaintenanceDiskette Ver 2.01
(This diskette is common for
all ThinkPad models.)

72X8546
35G4703
66G5180
95F3598
78H5384

Tools

ThinkPad 560 (2640)

331

Power Cords
IBM power cords for a specific country are usuallyavailable only in that country:
For 2-pin power cords:
IBM
Power
Cord
Part
NumberUsed in These Countries

13H5264

Bahamas, Barbados, Bermuda, Bolivia, Canada,
Cayman Islands, Colombia, Costa Rica,
Dominican Republic, Ecuador, El Salvador,
Guatemala, Guyana, Haiti, Honduras, Jamaica,
Korea (South), Mexico, Netherlands Antilles,
Nicaragua, Panama, Peru, Philippines, Saudi
Arabia, Suriname, Taiwan, Thailand, Trinidad(West Indies), United States of America,
Venezuela

14F0033

Abu Dhabi, Albania, Antigua, Bahrain, Brunei,
Dubai, Fiji, Hong Kong, India, Ireland, Kenya,
Kuwait, Macao, Malasia, Nigeria, Oman,
People's Republic of China, Qatar, Singapore,
United Kingdom

13H5270

Austria, Belgium, Bulgaria, Chile, Czech
Republic, Denmark, Egypt, Finland, France,
Germany, Greece, Hungary, Iceland, Indonesia,
Israel, Italy, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Spain, Sweden,
Switzerland, Turkey, former Yugoslavia

13H5273

Japan

13H5276

Argentina, Australia, New Guinea, New Zealand,
Papua, Paraguay, Uruguay

13H5279

Bangladesh, Pakistan, South Africa, Sri Lanka

332

IBM Mobile Systems - ThinkPad HMM Volume 3For 3-pin power cords:
Note
The grounded adapter is required for full MPRII
compliance.
IBM
Power
Cord
Part
NumberUsed in These Countries

25H2205

Argentina, Australia, New Guinea, New Zealand,
Papua, Paraguay, Uruguay

25H2207

Bahamas, Barbados, Bermuda, Bolivia, Canada,
Cayman Islands, Colombia, Costa Rica,
Dominican Republic, Ecuador, El Salvador,
Guatemala, Guyana, Haiti, Honduras, Jamaica,
Korea (South), Mexico, Netherlands Antilles,
Nicaragua, Panama, Peru, Philippines, Saudi
Arabia, Suriname, Taiwan, Trinidad (WestIndies), United States of America, Venezuela

25H2209

Austria, Belgium, Bulgaria, Czech Republic,
Egypt, Finland, France, Germany, Greece,
Hungary, Iceland, Indonesia, Netherlands,
Norway, Poland, Portugal, Romania, Slovakia,
Spain, Sweden, Turkey, former Yugoslavia

25H2211

Denmark

25H2213

Bangladesh, Pakistan, South Africa, Sri Lanka

25H2215

Abu Dhabi, Albania, Antigua, Bahrain, Brunei,
Dubai, Fiji, Hong Kong, India, Ireland, Kenya,
Kuwait, Macao, Malaysia, Nigeria, Oman,
People's Republic of China, Qatar, Singapore,
United Kingdom

25H2219

Thailand

25H2221

Switzerland

25H2223

Chile, Italy

25H2225

IsraelThinkPad 560 (2640)

333

For 3-pin slim power cords:
IBM
Power
Cord
P/N

Used in These Countries

76H3514

Argentina, Australia, Papua New Guinea, New
Zealand, Paraguay, Uruguay

76H3516

Bahamas, Barbados, Bermuda, Bolivia, Canada,
Cayman Islands, Colombia, Costa Rica,
Dominican Republic, Ecuador, El Salvador,
Guatemala, Guyana, Haiti, Honduras, Jamaica,
Mexico, Netherlands Antilles, Nicaragua,
Panama, Peru, Philippines, Saudi Arabia,
Suriname, Taiwan, Trinidad (West Indies),
United States of America, Venezuela

76H3518

Austria, Belgium, Bulgaria, Czech Republic,
Egypt, Finland, France, Germany, Greece,
Hungary, Iceland, Indonesia, Netherlands,
Norway, Poland, Portugal, Romania, Slovakia,
Spain, Sweden, Turkey, former Yugoslavia

76H3520

Denmark

76H3522

Bangladesh, Pakistan, South Africa, Sri Lanka

76H3524

Abu Dhabi, Albania, Antigua, Bahrain, Brunei,
Dubai, Fiji, Hong Kong, India, Ireland, Kenya,
Kuwait, Macao, Malaysia, Nigeria, Oman,
People's Republic of China, Qatar, Singapore,
United Kingdom

76H3526

Japan

76H3528

Switzerland, Liechtenstein

76H3530

Chile, Italy, Ethiopia, Libya

76H3532

Israel

76H3535

Korea

76H4866

Thailand334

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 760 (9546, 9547)
Read This First . . . . . . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . .
Memory Checkout . . . . . . . . . . . . . .
System Board and CPU Card Checkout . . . .
Keyboard and Auxiliary Input Device Checkout
DSP Card Checkout . . . . . . . . . . . . .
Audio (ESS) Card Checkout. . . . . . . . .
TrackPoint III Checkout. . . . . . . . . . .
Fan Checkout (Models 760XL/760XD). . . .
Game Port Checkout . . . . . . . . . . . . .
Diskette Drive Test
. . . . . . . . . . . . .
LCD Information Panel Checkout . . . . . . .
Power Systems Checkout. . . . . . . . . .
Power Management Features. . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . .
Numeric Error Codes . . . . . . . . . . . . .
FRU Codes . . . . . . . . . . . . . . . . .
Beep Symptoms . . . . . . . . . . . . . . .
No Beep Symptoms . . . . . . . . . . . . .
LCD-Related Symptoms. . . . . . . . . . .
Keyboard/TrackPoint III-Related Symptoms. .
Indicator-Related Symptoms. . . . . . . . .
LCD Information Panel-Related Symptoms. .
Power-Related Symptoms. . . . . . . . . .
Function/Audio-Related Symptoms. . . . . .
DSP-Related Symptoms . . . . . . . . . . .
ESS-Related Symptoms. . . . . . . . . . .
Peripheral-Device-Related Symptoms . . . . .
Infrared-Related Symptoms . . . . . . . . . .
Other Symptoms . . . . . . . . . . . . . . .
Intermittent Problems. . . . . . . . . . . .
Undetermined Problems. . . . . . . . . . .
Related Service Procedures . . . . . . . . . . .
Status Indicators . . . . . . . . . . . . . . .
LCD Information Panel . . . . . . . . . . . .
How to Run the Diagnostics. . . . . . . . .
Error Log
. . . . . . . . . . . . . . . . . .
Checking the Installed Devices List . . . . . .
Password Combinations (POP, HDP, PAP). .
How to Run a Low-Level Format. . . . . . .
PC Test Card LED . . . . . . . . . . . . . .
Fn Key Combinations. . . . . . . . . . . .
Product Overview (760) . . . . . . . . . . . . .
Model 760C or 760CD . . . . . . . . . . . .
Model 760E or 760ED . . . . . . . . . . . .
Model 760L or 760LD. . . . . . . . . . . .
Model 760EL or 760ELD . . . . . . . . . . .
Model 760XL or 760XD. . . . . . . . . . .
FRU Removals and Replacements . . . . . . . .
1010 Rear Connector Door
. . . . . . . . .
1020 Diskette Drive/CD-ROM Drive. . . . .

338
341
342
344
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 Copyright IBM Corp. 1997335

1030 Battery Pack
. . . . . . . . . . . . .
1040 Hard Disk Drive . . . . . . . . . . . .
1050 DIMM . . . . . . . . . . . . . . . . .
1060 Top Cover. . . . . . . . . . . . . .
1070 Keyboard Unit . . . . . . . . . . . . .
1080 LCD Unit
. . . . . . . . . . . . . . .
1090 Front IR . . . . . . . . . . . . . . . .
1095 Rear IR . . . . . . . . . . . . . . . .
1100 System Board Assembly . . . . . . . .
1125 Upper Shield. . . . . . . . . . . . .
1110 Video Card/Fan (Model Unique). . . .
1135 External Diskette Drive Connector. . .
1120 DC/DC Card
. . . . . . . . . . . . .
1130 DSP Card/ Audio (ESS) Card
. . . . .
1140 CPU Card . . . . . . . . . . . . . . .
1150 System Board and PCMCIA Slot Assembly
1160 Palm Rest . . . . . . . . . . . . . . .
1170 Keyboard, Information Panel . . . . . .
1180 Keyboard Cable . . . . . . . . . . . .
1190 Keyboard Card
. . . . . . . . . . . .
1200 Backup Battery, Speaker, Standby Battery
LCD Removal and Replacement . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N
29H9029) . . . . . . . . . . . . . . . . . . .
1010 LCD Cover. . . . . . . . . . . . . .
1020 LCD Panel, Interface Cable Assembly.
1030 Hinges. . . . . . . . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N
73H6599) . . . . . . . . . . . . . . . . . . .
2010 LCD Cover. . . . . . . . . . . . . .
2020 LCD Panel. . . . . . . . . . . . . .
2030 Interface Cable Assembly, Hinges. . .
LCD Unit, 10.4 SVGA (P/N 29H9227). . . . . .
3010 LCD Cover. . . . . . . . . . . . . .
3020 LCD Panel, Interface Cable Assembly.
3030 Hinges. . . . . . . . . . . . . . . .
LCD Unit, 10.4 VGA (P/N 46H5355) . . . . . . .
4010 LCD Cover. . . . . . . . . . . . . .
4020 LCD Panel. . . . . . . . . . . . . .
4030 Interface Cable Assembly, Hinges. . .
LCD Unit, 11.3 DSTN (P/N 39H6232). . . . . .
5010 LCD Cover. . . . . . . . . . . . . .
5020 LCD Panel. . . . . . . . . . . . . .
5030 Interface Cable Assembly, Hinges. . .
LCD Unit, 12.1 XGA. . . . . . . . . . . . . .
6010 LCD Cover. . . . . . . . . . . . . .
6020 LCD Panel. . . . . . . . . . . . . .
6030 Interface Cable Assembly, Hinges . . . .
LCD Unit, 12.1 SVGA (P/N 82H8496). . . . . .
7010 LCD Cover. . . . . . . . . . . . . .
7030 LCD Panel. . . . . . . . . . . . . .
7040 Interface Cable Assembly, Hinges. . .
LCD Unit, 12.1 SVGA (P/N 11J8867, ASM P/N
11J8855) . . . . . . . . . . . . . . . . . . .

336

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462
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466

IBM Mobile Systems - ThinkPad HMM Volume 38010 LCD Cover. . . . . . . . . . . . . .
8020 LCD Panel. . . . . . . . . . . . . .
8030 Interface Cable Assembly, Hinges. . .
LCD Unit, 12.1 SVGA (P/N 46H5725, ASM P/N
46H5723) . . . . . . . . . . . . . . . . . . .
9010 LCD Cover. . . . . . . . . . . . . .
9020 LCD Panel. . . . . . . . . . . . . .
9030 Interface Cable Assembly, Hinges. . .
Locations . . . . . . . . . . . . . . . . . . . .
Front View
. . . . . . . . . . . . . . . . .
Rear View . . . . . . . . . . . . . . . . . .
Inside View
. . . . . . . . . . . . . . . . .
Bottom View . . . . . . . . . . . . . . . . .
Power-On Password Connector . . . . . . . .
Parts Listing 760 (9546, 9547). . . . . . . . .
Model 760C (9546) . . . . . . . . . . . . .
Model 760CD (9546). . . . . . . . . . . .
Model 760E (9546) (CD Nonupgradable Type)
Model 760E (9546) (CD Upgradable Type) or
760ED . . . . . . . . . . . . . . . . . . .
Model 760L (9547). . . . . . . . . . . . .
Model 760LD (9547). . . . . . . . . . . .
Model 760EL or 760ELD (9547) . . . . . . .
Model 760XL (9547). . . . . . . . . . . .
Model 760XD (9546). . . . . . . . . . . .
LCD Parts List
. . . . . . . . . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N
29H9029). . . . . . . . . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N
73H6599). . . . . . . . . . . . . . . . .
LCD Unit, 10.4 SVGA (P/N 29H9227) . . . . .
LCD Unit, 10.4 VGA (P/N 46H5355). . . . .
LCD Unit, 11.3 DSTN (P/N 39H6232) . . . . .
LCD Unit, 12.1 XGA (P/N 82H8486). . . . .
LCD Unit, 12.1 XGA (P/N 46H5735, ASM P/N
46H5731). . . . . . . . . . . . . . . . .
LCD Unit, 12.1 SVGA (P/N 82H8496) . . . . .
LCD Unit, 12.1 SVGA (P/N 46H5725) . . . . .
LCD Unit, 12.1 SVGA (P/N 11J8867, ASM P/N
11J8855). . . . . . . . . . . . . . . . .
Common or Option Parts List . . . . . . . . .

ThinkPad 760 (9546, 9547)

466
468
470
472
472
474
476
478
478
479
480
481
482
483
483
486
490
494
500
503
507
512
516
520
520
522
524
526
528
530
532
534
536
538
540

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Read This First
Before you go to the checkout guide, be sure to read thissection.
Important Notes










Only certified trained personnel should
service the computer.
Read FRU service procedures before replacing
any FRUs.
Be extremely careful during write operations
such as copying, saving, or formatting. Drives
in the computer that you are servicing might havebeen rearranged or the drive startup sequence
might have been altered. If you select anincorrect drive, data or programs can be written
over.
Replace FRUs only for the correct model.
When you replace the FRU, make sure themodel of the machine and FRU part number are
correct by referring to the part list.
FRUs should not be replaced because of asingle, unreproducible failure. Single failures
can occur from a variety of reasons that havenothing to do with a hardware defect such as:cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should beconsidered only when a recurring problem exists.
If this is suspected, clear the error log and run
the test again. Do not replace any FRUs if log
errors do not reappear.
Be careful not to replace a nondefective FRU.

How to Use Error Messages:

Use the error
codes displayed on the screen to diagnose failures. If
more than one error code is displayed, begin the diagnosis
with the first error code. The cause of the first error code
can result in false error codes being displayed. If no error
code is displayed, see if the error symptom is listed in the“Symptom-to-FRU Index” on page 359.

Port Replicator Problems: If you suspect a
problem with the Port Replicator, see “Port Replicator
Checkout” in the “Common Devices Checkout” section for
more information.
How to Diagnose Multiple FRUs: If the adapter
or device has more than one FRU, the error code could becaused by either FRU. Before replacing multiple FRUs, tryremoving or exchanging each FRU, one by one in thedesignated sequence, to see if the symptoms change.

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What to Do First:

The servicer must include thefollowing in the parts exchange form or part return form
that is attached to the returned FRU:
1.
2.
3.
4.
5.
6.
7.
8.
9.

Name and phone number of servicer
Date of service
Date when part failed
Date of purchase
Failure symptoms, error codes appearing on
display, and beep symptoms
Procedure index and page number in which
failing FRU was detected
Failing FRU name and part number
Machine type, model number, and serial number
Customer's name and address

Before checking problems with the computer, determine
whether the damage applies the warranty by referring to
the following:
Note for Warranty: During the warranty period, thecustomer may be responsible for repair costs if thecomputer damage was caused by misuse,
accident, modification, unsuitable physical or
operating environment, or improper maintenance by
the customer. The following list provides somecommon items that are not covered under warranty
and some symptoms that may indicate the system
was subjected to stresses beyond normal use:
The following is not covered under warranty:















LCD panel cracked by applying excessive force
or by being dropped
Scratched (cosmetic) parts
Cracked or broken plastic parts, broken latches,broken pins, or broken connectors caused byexcessive force
Damage caused by liquid spilled into the system
Damage caused by improperly inserting a
PCMCIA card or installation of an incompatible
card
Damage caused by foreign material in the FDD
or UltraBay
Diskette drive damage caused by pressing thediskette drive cover or inserting diskettes withmultiple labels
Damaged or bent diskette eject button
CD-ROM drive damage caused by excessive
forces shock, or by being dropped
Fuses blown by attaching a nonsupported device
Forgotten computer or hard disk password(making the computer or hard disk unusable)

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If the following symptoms are present, they may
indicate damage caused by nonwarranted activity:Missing parts may be a symptom of unauthorized
service or modification.
HDD spindles can become noisy if subjected toexcessive force or by being dropped.
I9990303 errors can be caused by exposure tostrong magnetic fields.

How to Disable the Power-On Password:
Important
This information is not available in this online HMM
format. See your IBM Servicer or IBM Authorized
Dealer for this procedure.

Supervisor and Hard Disk Passwords:

Thesupervisor password and the hard disk password (HDP)
are security features that are used to protect the systemand the hard disk data from unauthorized access. No
overriding capability is provided. If only a hard disk
password is set, obtaining permission from the password
owner to unlock the password is a prerequisite for running
diagnostic tests and performing service. If both supervisor
password and hard disk password are set, you can enter
Easy-Setup by pressing the Enter key or power-on
password at the supervisor password prompt. In this case,
the Password, Start up, and Initialize icons cannot be
selected.
See “Password Combinations (POP, HDP, PAP)” on
page 375 for more information about passwords.

Power Shutdown Switch:

The power shutdown
switch resets the system regardless of the microcode
status and forces the power off. Use this push button to
power-off when power is not completely off or the
microcode is in a hung state.
See “Rear View” on page 479 for the power shutdown
switch.

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IBM Mobile Systems - ThinkPad HMM Volume 3

Checkout Guide
Use the following procedure as a guide for computer
problems.
Note: The diagnostic tests are intended to test only IBM
products. Non-IBM products, prototype cards, ormodified options can give false errors and invalid
system responses.
1. Obtain the failing symptoms in as much detail as
possible.
2. Verify the symptoms by attempting to re-create thefailure by running the diagnostic test or by repeating
the same operation.
Note: To run the diagnostics, refer to “How to Run
the Diagnostics” on page 373.
3. Use the following table with the verified symptom todetermine which page to go to. Search thesymptoms column and find the description that best
matches your symptom; then go to the page shown in
the “Go to” column.
Symptoms (Verified)

Go toPower failure. (Thepower indicator does not
go on or stay on.)“Power Systems
Checkout” on page 349.

POST does notcomplete. No beeps or
error code are indicated.

“Symptom-to-FRU
Index” on page 359,
and then use the No
Beep Symptoms table.

The configuration is not
the same as theinstalled devices.

“Checking the Installed
Devices List” onpage 374.

POST beeps, but noerror codes are
displayed.

“Symptom-to-FRU
Index” on page 359,
and then use the Beep
Symptoms table.

POST detected an error
and displayed numericerror codes.

“Symptom-to-FRU
Index” on page 359,
and then use the
Numeric Error Codes
table.

The diagnostic test
detected an error anddisplayed an FRU code.

“FRU Codes” onpage 363.

Other symptoms (suchas LCD display
problems).

“Symptom-to-FRU
Index” on page 359,
and then use the othersymptom table.

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Symptoms (Verified)

Go to

Symptoms cannot be
re-created. (Intermittent
problems.)

Use the customer
reported symptoms and
go to “Symptom-to-FRU
Index” on page 359.

Memory Checkout
DIMMs are available for increasing memory capacity.
Note: Models 760XL and 760XD have a dip switch on the
DIMM adapter card. When a 64MB 2-bank DIMM
is installed, the dip switch is located to the left (seeCase 2), and the base memory (8MB) on the DIMM
adapter card is disabled.
The 64MB 2-bank DIMM can be installed only inslot 2. If the card is installed in slot 1, the card will
not be recognized as 64MB DIMM.

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IBM Mobile Systems - ThinkPad HMM Volume 3

Models 760C/760CD/760L/760LD
DIMM

Displayed Value

0MB

7808KB

8MB

16000KB

12MB

20096KB

16MB

24192KB

20MB

28288KB

24MB

32384KB

28MB

36480KB

32MB

40576KB

Models 760E/760ED/760EL/760ELD/760XL/760XD
Displayed Value
DIMM

Base Memory 8MB

Base Memory
16MB

0MB

7808KB

16000KB

8MB

16000KB

24192KB

16MB

24192KB

32384KB

24MB

32384KB

40576KB

32MB

40576KB

48768KB

40MB

48768KB

56960KB

48MB

56960KB

65152KB

64MB

73344KB

81536KB

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Memory errors might stop system operations, show error
messages on the screen, or hang the system.
Use the following procedure to isolate memory problems:
Note: Make sure that the DIMM adapter card is fully
installed into the connector. A loose connection
can cause an error.
1. Power-off the computer and remove the DIMM
adapter card from its slot (if installed).
2. Press and hold the F1 key; then power-on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
3. Select Test and press Enter.
4. Select Memory and press Enter to run the memory
test on base memory. If an error appears, replace
the system board.
5. Power-off the computer and reinstall the DIMM
adapter card; then power-on the computer. Verify thememory size; then test the memory. If an error
appears, replace the DIMM adapter card.
If memory problems occur intermittently, use the loop
option to repeat the test. When the test detects an error,
an error log is printed on the printer connected to theparallel port. See “Error Log” on page 374 for more
information.

System Programs in Flash Memory: System setup
programs and diagnostic tests are stored in flash memory.

Flash Memory Update: A flash memory update isrequired for the following conditions:

New versions of system programs.
New features or options are added.

To update the flash memory, do the following:
1. Get the appropriate diskette containing the update.
2. Insert the System Program Service Diskette into drive
A and power-on the computer.
3. Select Update system programs from the menu.

System Board and CPU Card Checkout
The processing functions are performed by both thesystem board and the CPU card. Processor problems canbe caused by either FRU. However, the CPU card
generally has a lower probability of failure. When anumeric code calls the system board or the CPU card as a
FRU, or the CPU card is called by a diagnostic test by
showing FRU code 11, use the following procedure toisolate the problem:
1. Run the system board test to verify the symptom.
This test verifies both the system board and the CPU
card. If no error is detected, return to “Checkout
Guide” on page 341.

344

IBM Mobile Systems - ThinkPad HMM Volume 3Note: Don't touch the keyboard and pointing device
when the system board test is running. Thismay cause an unexpected error.
2. If FRU code 10 appears, replace the system board
but do not replace the CPU card. Transfer the CPU
card from the old system board to the new systemboard.
3. If FRU code 11 appears, reseat the CPU card.
4. Rerun the test to verify the fix.
5. If FRU code 11 remains, replace the CPU card.
If this procedure does not correct the problem, go to“Undetermined Problems” on page 371.

Keyboard and Auxiliary Input Device
Checkout
Remove the external keyboard if the internal keyboard is tobe tested.
If the internal keyboard does not work or an unexpectedcharacter appears, make sure that the flexible cable
extending from the keyboard is correctly seated in theconnector on the video card.
If the keyboard cable connection is correct, check the DSP
card (see “DSP Card Checkout” on page 346) or Audio(ESS) card (see “Audio (ESS) Card Checkout” onpage 346).
If the tests do not detect a keyboard problem, run the
keyboard test by doing the following:
1. Go to the diagnostic menu screen by selecting Testin the Easy-Setup menu.
2. Press Ctrl+A to enter to the advanced diagnosticmode.
3. Press Ctrl+K; a layout of the keyboard appears on
the screen.
4. Check that when each key is pressed, the key's
position on the keyboard layout on the screenchanges to a black square.
Note: When the Fn key is pressed, a black square
briefly appears.
If the tests detect a keyboard problem, do the following
one at a time to correct the problem. Do not replace anondefective FRU.






Reseat the keyboard card cable.
Replace the keyboard card cable.
Replace the keyboard card assembly.
Replace the video card.
Replace the system board.

The following auxiliary input devices are supported for thiscomputer:ThinkPad 760 (9546, 9547)

345





Numeric keypad
Mouse (PS/2 compatible)
External keyboard (with keyboard/mouse cable)

If any of these devices do not work, reseat the cableconnector and repeat the failing operation.
If the problem does not recur, recheck the connector.
If the problem is not corrected, replace the device, andthen the system board.

DSP Card Checkout(Models 760C/760CD/760E/760ED/760XD)
1. Go to the diagnostic menu screen by selecting Testin the Easy-Setup menu.
2. Select DSP and run the diagnostic tests.
3. If the test detects a DSP card problem,
replace the DSP card.

Audio (ESS) Card Checkout(Models 760L/760LD/760EL/760ELD/760XL)
1. Go to the diagnostic menu screen by selecting Testin the Easy-Setup menu.
2. Select Audio and run the diagnostic tests.
3. If the test detects a audio (ESS) card problem,
replace the audio (ESS) card.

TrackPoint III Checkout
If the TrackPoint III does not work, check the configurationin the ThinkPad Features program. If the configuration of
the TrackPoint III is disabled, select Enable to enable it.
If this does not correct the TrackPoint III problem, continue
with the following.
The TrackPoint III does automatic compensations to adjust
the pointer sensor. During this process, the pointer moves
on the screen automatically for a short time. This
self-acting pointer movement can occur when a slight,
steady pressure is applied to the TrackPoint III pointerwhile the computer is powered on or while the system isrunning, or when readjustment is required because thetemperature has exceeded its normal temperature range.
This symptom does not indicate a hardware problem. No
service actions are necessary if the pointer movement
stops in a short period of time.
If a click button problem or pointing stick problem occurs,
do the following:
1.
2.
3.
4.

346

Go to the Easy-Setup menu.
Select an item with the pointing stick.
Press either the left or right click button.
Verify that both buttons work correctly.

IBM Mobile Systems - ThinkPad HMM Volume 3

If either the pointing stick or the click button does not work,
do the following actions one at a time to correct the
problem. Do not replace a nondefective FRU.






Reseat the keyboard card cables.
Replace the keyboard card cables.
Replace the keyboard card assembly.
Replace the video card.
Replace the system board.

Fan Checkout (Models 760XL/760XD)
The cooling fan is controlled by a thermostat on the videocard. Prior to checking the fan, confirm that the 760XL or
760XD passes the diagnostics. Refer to “How to Run the
Diagnostics” on page 373.

Model 760XL:

To check the fan, do the following:

1. Turn off the computer.
2. Remove the following FRUs (see “FRU Removals andReplacements” on page 382):
a. Diskette drive/CD-ROM driveb. Battery packc. Hard disk drive
d. Top covere. LCD unit
f. Keyboard unit
g. Rear IR
h. System board assembly
i. Upper shield
3. Attach the AC adapter to the system board assembly.
4. Find U9 on the video card. Apply a short across pin
1 and pin 4 of U9 (LM56) with an appropriate
conductor. Then, turn on the computer.

Attention
Make sure the location of pin 1 and pin 4. Pin 8
is for power control. Don't touch pin 8.
Applying a short across pin 8 and another pin
may damage the card.
5. Check the rotation of the fan.

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347

Model 760XD: The fan starts when the temperatureof the inside box rises over 54°C, and stops when thetemperature of the inside box falls under 49°C.
To check the fan, do the following:
1. Turn off the computer.
2. Do the following steps to warm the computer up sothat the fan starts:
a. Put the computer on a non-thermal-conductive
material — for example, corrugated cardboard.
b. Attach the AC adapter; then turn on thecomputer.
c. Run the video function loop test of thediagnostics (see “How to Run the Diagnostics”
on page 373)
d. Close the LCD unit.
The fan should start rotating within 30 minutes.
3. Check the air flow coming out from the fan louver.

Game Port Checkout
Do the following if a joystick problem occurs:
1.
2.
3.
4.
5.

Connect the joystick to the game port.
Go to the Easy-Setup menu.
Select an item with the joystick.
Press any button of the joystick.
Verify that all buttons work correctly.

If either the joystick or a button does not work, replace thevideo card. If the problem persists, replace the systemboard.

Diskette Drive Test
Do the following to isolate the problem to a controller,
drive, or diskette. A scratch, write enabled, nondefective
2HD diskette is required.
FDD-1 represents the the diskette drive in the UltraBay.
FDD-2 represents the port replicator, expansion unit, or
diskette drive attached through the external diskette drive
connector.
Warning: Make sure that the diskette does not havemore than one label attached to it. Multiple labels cancause damage to the drive or can cause the drive to fail.
Do the following to select the test device:
1. Select the advanced diagnostics mode and selectTool; then select FDD-1 or FDD-2 and press theSpacebar. A √ mark appears next to the selected
icon. Insert the blank diskette when instructed.
2. Run the diskette drive test.
3. If the controller test detects an error, FRU code 10
appears. Replace the system board.

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IBM Mobile Systems - ThinkPad HMM Volume 3

4. If the controller test runs without errors, the drive
read/write tests start automatically.
5. If the drive test detects an error, FRU code 50 for
FDD-1; or 51 for FDD-2 appears. If the diskette itself
is known to be good, replace the drive.
6. If FDD-2 test detects an error, move the drive to thecomputer's diskette drive connector directly, if
possible, and test it again as FDD-1.
If no errors occur in the FDD-1 position, the drive is
not defective. Go to “Port Replicator Checkout” in“Common Devices Checkout” section to isolate thereplicator problem.
7. If the drive is attached through an Expansion Unit, go
to the service manual of the Expansion Unit to isolate
the problem.
8. If the drive is attached through a Diskette Drive
Attachment Unit, replace the unit.
If an error occurs when the external diskette drive isattached through the external diskette drive connector andthere is not a diskette drive in the UltraBay, reseat theconnector on the video card. If the error still remains,reseat the external diskette drive connector. If the error
still remains, replace the following FRUs one at a time:
1. External diskette drive kit
2. Video card
3. External diskette drive connector

LCD Information Panel Checkout
If an LCD information panel problem occurs, do thefollowing:
1. Power-off the computer.
2. Power-on the computer.
3. All the icons in the LCD information panel appear fora moment soon after the computer is powered-on.
Verify that all icons appear correctly.
If some of the icons do not appear, replace the
keyboard.
If the problem still remains, replace the video card.

Power Systems Checkout
To verify the symptom of the problem, power-on thecomputer using each of the power sources as follows:
1. Remove the battery pack, diskette drive, and harddisk drive.
2. Connect the AC Adapter and check that power is
supplied.
3. Install the diskette drive or hard disk drive one at atime, and check that power is supplied from eachpower source.

ThinkPad 760 (9546, 9547)

349

4. Disconnect the AC Adapter, remove the hard disk anddiskette drive, and install the charged battery pack;then check that power is supplied by the battery pack.
If you suspect a power problem, see the appropriate power
supply check in the following list:








“Checking the AC Adapter.”“Checking Operational Charging” on page 351.
“Checking the Battery Pack” on page 351.
“Checking the Car-Battery Adapter” on page 352.
“Checking the Backup Battery” on page 353.
“Checking the Standby Battery” on page 354.
“Port Replicator Power Overload” on page 358.

Checking the AC Adapter:

You are here
because the computer fails only when the AC Adapter is
used.





If the power problem occurs only when the port
replicator is used, replace the replicator.
If the power-on indicator does not turn on, check thepower cord of the AC Adapter for correct continuity
and installation.
If the operational charge does not work, go to“Checking Operational Charging” on page 351.

Note: For Model 760CD, 760ED, 760LD, 760ELD, 760XL,
and 760XD, there are two types of adapters. The
procedure for checking both types is the same.
1. Unplug the AC Adapter cable from the computer andmeasure the output voltage at the plug of the AC
Adapter cable. See the following figure:2

1(20 - 10 V)
Pin

Voltage (V dc)

1+18.0 to +21.0

2

Ground(16 - 10 V)
Pin

Voltage (V dc)

1+14.5 to +17.0

2

Ground350

If the voltage is correct, make sure theconnection between DC/DC card and systemboard is not loose.
IBM Mobile Systems - ThinkPad HMM Volume 3

Replace the DC/DC card.
If the problem is not corrected, replace thesystem board.
 If the problem is still not corrected, go to“Undetermined Problems” on page 371.
 If the voltage is not correct, go to the next step.
Unplug the AC Adapter cable from the ac power
outlet and wait five minutes or longer to allow theover-voltage protection circuit to be fully discharged
and initialized.
Plug the AC Adapter cable into the ac power outlet.
Measure the output voltage of the AC Adapter.
If the voltage is still not correct, replace the AC
Adapter.



2.

3.
4.
5.

Note: An audible noise from the AC Adapter does notalways indicate a defective adapter.

Checking Operational Charging: To check
operational charging, use a discharged battery pack or abattery pack that has less than 50% of the total power
remaining when installed in the computer.
Perform operational charging. If the battery statusindicator does not turn on, remove the battery pack andleave it to return to room temperature. Reinstall thebattery pack. If the charge indicator still does not turn on,
replace the battery pack.

Checking the Battery Pack:

Battery charging will
not start until the Fuel-Gauge shows that less than 95% of
the total power remains; with this condition the battery
pack will charge to 100% of its capacity. This protects thebattery pack from being overcharged or having ashortened life.
Do the following:
1. Power-off the computer.
2. Remove the battery pack and measure the voltage
between battery terminals 1 (+) and 4 (−). See thefollowing figure:(T)

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351

Terminal

Voltage (V dc) / Signal

1+0 to +13.5

2

Send

3

Thermal4

Ground (−)

5

SelectNote: Signal lines, not used in these steps, are used
for communication between the system andthe battery.
3. If the voltage is less than +11.0 V dc, the battery packhas been discharged. Recharge the battery pack.
If the voltage is still less than +11.0 V dc after
recharging, replace the battery.
Note: If the voltage of the battery pack is 0 V, it is
not defective.
4. If the voltage is more than +11.0 V dc, measure theresistance between battery terminals 3 and 4. The
resistance must be 4 to 30 K ohm.
If the resistance is not correct, replace the battery
pack.
If the resistance is correct, replace the DC/DC card.

Checking the Car-Battery Adapter
1. Unplug the Car-Battery Adapter cable from thecomputer.
2. Plug the Car-Battery Adapter into the cigarette lighter
socket.
Note: If the adapter is already plugged in, reseat it.
3. Measure the output voltage of the Car-Battery
Adapter cable. See the following figure:2
Pin

Voltage (V dc)

1+19.0 to +21.0

2

Ground352

1

If the voltage is correct, the Car-Battery Adapter
is working correctly. Check that the computerruns with the AC Adapter. If it runs correctlywith the AC Adapter, check the system board. If
the problem still remains, replace the following
FRUs one at a time.
IBM Mobile Systems - ThinkPad HMM Volume 3

a. DC/DC cardb. System board

If the problem is not resolved when the systemboard is replaced, go to “Undetermined
Problems” on page 371.
If the voltage is outside the normal voltage
range, do one of the following:– Try these test procedures in a different car,if one is available.
– Replace the Car-Battery Adapter if thecomputer works correctly with the AC
Adapter.

Note: If the output voltage from the cigarette lighter
socket of the car is less than 10.5 V dc, acontinuous noise may be heard. The condition of
the car battery should be checked by appropriate
service personal.

Checking the Backup Battery
1. Power-off the computer and unplug the AC Adapter
from the computer.
2. Open the keyboard, and remove the diskette
drive/CD-ROM drive, the battery pack, and the harddisk drive.
3. Remove the top cover and keyboard unit.
4. Open the keyboard unit; then remove the keyboardcard.
5. Remove the backup battery from the keyboard card.
(Refer to “1200 Backup Battery, Speaker, Standby
Battery” on page 425 to remove the battery.)
6. Measure the voltage of the backup battery. See thefollowing figure:ThinkPad 760 (9546, 9547)

353

(-)

(+)

Red

Black

Wire

Voltage (V dc)

Red+2.5 to +3.7

Black

GroundIf the voltage is correct, replace the system board.
If the voltage is not correct, the backup battery has
been discharged. Replace the backup battery.
If the backup battery discharges quickly after
replacement, replace the system board.

Checking the Standby Battery
1. Power-off the computer and unplug the AC Adapter
from the computer.
2. Open the keyboard, and remove the diskette
drive/CD-ROM drive, the battery pack, and the harddisk drive.
3. Remove the top cover and keyboard unit.
4. Open the keyboard unit; then remove the keyboardcard.
5. Remove the standby battery from the keyboard card.
(Refer to “1200 Backup Battery, Speaker, Standby
Battery” on page 425 to remove the battery.)Warning: Be careful not to cause a short circuit whenmeasuring the voltage.
6. Measure the voltage of the standby battery.
 If the voltage between red and black is 3.5 V dc
or greater, the voltage is correct. Go to step 12
on page 355 to verify standby battery operation.

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IBM Mobile Systems - ThinkPad HMM Volume 3

If the voltage is less than 3.5 V dc, go to thenext step.
7. Plug the AC Adapter into the computer and power-on
the computer.
Warning: Be careful not to cause a short circuit whenmeasuring the voltage.


8. Measure the output voltage at the connector on thesystem board.

(+)

(-)
Black

Red

Pin

Voltage (V dc)

+

+4.0

−

GroundIf the voltage is less than +4.0 V dc, replace the
DC/DC card. If the voltage is still low, replace
the system board.
 If the voltage is more than +4.0 V dc, power-off
the computer, replace the standby battery, andgo to the next step.
Ensure that the AC Adapter is plugged into thecomputer; then power-on the computer.
Charging of the standby battery starts. A depleted
battery needs approximately 30 minutes to berecharged to the operational voltage of +3.5 V dc.
Unplug the AC Adapter.
Verify the standby battery function by removing andinstalling the battery pack during suspend mode.


9.
10.

11.
12.

Note: Removing and installing the battery packduring suspend mode should be done within
ThinkPad 760 (9546, 9547)

355

one minute. The resume operation must start.
If the resume operation does not work,
switching of power from the battery pack tostandby battery will not be correct. Replace
the DC/DC card.
If replacing the DC/DC card does not resolve
the problem, replace the system board.

Power Management Features
Three power management modes are provided by thecomputer to reduce power consumption and prolong
battery power.

Standby Mode:

When in standby mode the following

occurs:The LCD backlight turns off.
The hard disk motor stops.

Events that cause the computer to enter standby mode:Standby requested by the Fn key (Fn+F3).
No activity under auto-standby enabled by theThinkPad Features program.



Events that cause the computer to exit or resume standbymode:(Resume) Any key operation.



Suspend Mode: When in suspend mode, thefollowing, in addition to the four actions of standby mode,
occur:The LCD is powered off.
The hard disk is powered off.
The CPU is stopped.



Notes:
1. In the ThinkPad Features program, the computercan be set to “Will not suspend even if LCD isclosed.”2. In the ThinkPad Features program, the computercan be set to “suspend hibernate while docked.”
3. When the computer is powered with ac power
and is used with one of the communication PC
cards, the computer enters standby mode; thePC card and application program remain active.
4. In the following conditions, the computer cannot
enter suspend mode: While a communication link is running.
 While the computer is attached to a Dock I.
Events that cause the computer to enter suspend mode:

Suspend mode is requested by the Fn key (Fn+F4).
The LCD is closed.

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IBM Mobile Systems - ThinkPad HMM Volume 3









The keyboard is opened.
The specified time has elapsed from the lastoperation with the keyboard, mouse, hard disk drive,
parallel connector, or diskette drive; or the AC
Adapter is plugged in. The time is specified by
Suspend Timer in the ThinkPad Features program.
The battery condition is low. The battery power
indicator blinks orange.
In the ThinkPad features program, the computer canbe set to “Hibernate when battery becomes low.” Thedefault setting is suspend.
Either the PS2 OFF or PS2 SUSpend command is
set in the ThinkPad Features program.

Events that cause the computer to exit or resume suspend
mode:








(Resume) The LCD is opened.
(Resume) The keyboard is closed.
(Resume) The real time clock alarm is signaled.
(Resume) The ring indicator (RI) is signaled by aserial or PCMCIA device.
(Resume) The Fn key is pressed.
(Resume) An external keyboard key is pressed while
operating with ac power.
(Exit) Timer conditions are satisfied for enteringhibernation mode.

Hibernation Mode:

When in hibernation mode, thefollowing occurs:The system status, RAM, VRAM, and setup data are
stored on the hard disk.
The system is powered off.

Notes:
1. In the ThinkPad Features program, the computercan be set to “suspend hibernate while docked.”
2. The computer cannot enter hibernation modewhen:

It is powered with ac power and acommunication PC card is used.

The computer is attached to a DOCK I.

Any of the following events can cause the computer toenter hibernation mode:

Hibernation mode is requested by the Fn key(Fn+F12).
Timer conditions are satisfied in suspend mode.
A critical low battery condition occurs.
The PS2 HIBernation command is set in the
ThinkPad Features program.

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357

The following event causes the computer to exit
hibernation mode:The power-on switch is turned on.

When power is turned on, the hibernation history in theboot record on the hard disk is recognized and systemstatus is restored from the hard disk to resume operation.

Port Replicator Power Overload: If power
shutdowns occur intermittently when using PCMCIA-2
devices via a port replicator, suspect a current overload.
Some PCMCIA devices use much power; if the maximum
usage of each device occurs simultaneously, the total
current will exceed the limit, thereby causing a power
shutdown. Isolate this problem by removing one of thedevices, and use the computer under the same condition
to see whether a power shutdown occurs. Do thisprocedure for all devices; then determine the cause.

358

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom-to-FRU Index
The Symptom-to-FRU Index lists the symptoms and errors
and the possible causes. The most likely cause is listed
first.
Note: Perform the FRU replacement or actions in thesequence shown in the “FRU/Action in Sequence”
column. If a FRU did not solve the problem, put
the original part back in the computer. Do not
replace a nondefective FRU.
This index can also be used to help you decide which
FRUs to have available when servicing a computer.
Numeric error codes show the errors detected in POST or
system operation. In the following error codes, X can be
any number.
If no codes are available, use narrative symptoms.
If the symptom is not listed, go to “Undetermined
Problems” on page 371.
Note: For IBM devices not supported by diagnostic
codes in the ThinkPad notebook computers,
see the manual for that device.

Numeric Error Codes
Symptom / Error

FRU / Action in Sequence

10X

1. System board











101: Interrupt failure.
102: Timer failure.
103: Timer interrupt
failure.
104: Protected mode
failure.
105: Last 8042
command not
accepted.
107: NMI test failure.
108: Timer bus test
failure.
109: Low meg-chip
select test.

110(System board parity.)

1. Go to “Memory
Checkout” onpage 342.
2. DIMM Adapter Cardand DIMM
3. The computer is
attached to the
expansion unit.
4. System board

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359

Symptom / Error

FRU / Action in Sequence

111(I/O parity.)

1. Go to “Memory
Checkout” onpage 342.
2. Expansion Unit/Port
Replicator
3. System board

158(HDP was not set eventhough the supervisor
password is set.)

1. Set HDPs for both
hard disk drives in the
HDD bay and the
UltraBay.

159(HDP is not set the same as
the supervisor password.)

1. Set correct HDPs forboth hard disk drives inthe HDD bay and the
UltraBay.

161(Dead battery.)

1. Go to “Checking the
Backup Battery” onpage 353.
2. Backup battery
3. System board

163(Time and date were notset.)

1. Reseat the keyboard
connector on thevideo card.
2. Set time and date.
3. System board

173(Configuration data waslost.)

1. Reseat the keyboard
connector on thevideo card.
2. Select OK in the error
screen; then set thetime and date.
3. Backup battery
4. System board

174(Configuration error:
Perform“Checking theInstalled Devices List” onpage 374 before changing
any FRUs.)

1. Check device
configuration.
2. System board
3. Diskette drive
assembly
4. Hard disk drive
assembly

175, 177, 178

1. System board175: EEPROM CRC#1 error.
177: Supervisor
password check sum
error.
178: EEPROM is not
functional.

183(Incorrect password enteredat the supervisor password
prompt.)1. Have the user
examine thepassword.

184(POP check sum error.)

1. Reset the POP(power-on password)in Easy-Setup.

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IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

185(The startup sequence is
not valid. Suspect thatpower was off when thestartup sequence was being
updated.)

1. Reset the startup
sequence inEasy-Setup.

186

1. System board

188(EEPROM CRC #2 error.)

1. Set the system
identification using
the ThinkPad
Hardware
Maintenance Diskette
Version 1.20.

190(Depleted battery pack was
installed when the power
was on.)1. Go to “Checking theBattery Pack” onpage 351.

191XX(PM initialization error.)

1. System board
2. CPU card

195
(The configuration read fromthe hibernation area does
not match the actual
configuration.)

1. Check if theconfiguration waschanged.
For example, check if
the disk drive is fromanother computer.

196(Read error occurred in thehibernation area of theHDD.)

1. Run the hard disk
drive test.
2. Hard disk drive

1XX

1. System board

2XX







201: Memory data
error.
202: Memory line error
00–15.
203: Memory line error
16–23.
205: Memory test
failure on on-board
memory.
221: ROM to RAM
remap error.

301, 303, 304, 305, 3XX(301: Keyboard error.)

1. Go to “Memory
Checkout” onpage 342.
2. DIMM, or DIMM
Adapter
3. System board

1. Go to “Keyboard and
Auxiliary Input
Device Checkout” onpage 345.
2. Keyboard
3. Video card
4. External numeric
keypad
5. External keyboard
6. Keyboard/mouse cable
7. System board

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361

Symptom / Error

FRU / Action in Sequence

601, 6XX(601: Diskette drive orcontroller error.)

1. Go to “Diskette Drive
Test” on page 348.
2. Diskette drive
assembly
3. Diskette
4. System board

602(Diskette read error.)

1. Go to “Diskette Drive
Test” on page 348.
2. Diskette
3. Diskette drive
assembly

604(Unacceptable ID was readfrom the diskette drive.)

1. Go to “Diskette Drive
Test” on page 348.
2. Diskette drive
assembly
3. System board

11XX
1101: Serial_A test failure.

1. Serial device
2. Communication cable
3. System board

17XX

1. Hard disk drive
2. System board

1701: Hard disk
controller failure.
1780, 1790: Hard disk
0 error.
1781, 1791: Hard disk
1 error.

24XX(2401: System board video
error.)

1. System board
2. Video card

808X

1. PCMCIA slot
assembly
2. PCMCIA device
3. System board8081: PCMCIA
presence test failure.
(PCMCIA revision
number also checked.)
8082: PCMCIA register
test failure.

860X(Pointing device error when
TrackPoint III is disabled.)





362

1. External mouse
2. External keyboard
3. System board

8601: System bus
error.–8042 mouseinterface.
8602: External mouseerror.
8603: System bus
error or mouse error.

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

861X(Pointing device error when
TrackPoint III is enabled.)

1. Reseat the keyboard
connector on thevideo card.
2. Reseat the keyboard
TrackPoint III cable on
the keyboard card.
See “1180 Keyboard
Cable” on page 422.
3. Keyboard
4. External mouse
5. Video card
6. System board8611: System bus
error.–I/F between
8042 and IPDC.
8612: TrackPoint error.
8613: System board or
TrackPoint error.

I9990301
I9990302
I9990305


I9990301: Hard diskerror.
I9990302: Invalid harddisk boot record.
I9990305: No bootabledevice.

1. Check that theoperating system isinstalled in the HDD.
Install the operating
system if it is notinstalled.
2. Reseat the bootdevice.
3. Check the startup
sequence for thecorrect boot device.
4. Check that theoperating system has
no failure and isinstalled correctly.

I9990303(Bank–2 flash ROM checksum error.)

1. System board

Other codes not listedabove

1. Go to “Undetermined
Problems” onpage 371.

FRU Codes
If an error is detected by the diagnostic tests, a four-digit
FRU code is displayed. The FRU code indicates two
suspected FRUs. Replace the FRU that is indicated by
the two leftmost digits first; then replace the FRU indicatedby the two rightmost digits. No FRU is assigned to code
00. If only one FRU is suspected, the other FRU code isfilled with zeros. See the page referred to before replacing
the FRU.
FRU Code

FRU/Action

10

System board

11

CPU card

15

Audio card (ESS)16

DSP card

17

Front IR unit

18

Rear IR unit

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363

FRU CodeFRU/Action

20

Memory(See “Memory Checkout” on page 342.)

30

Reserved

32

External keyboard

33

External mouse40

LCD assembly

42Video card

45

External CRT

50

1. Reseat the drive (FDD-1)
2. Diskette drive (FDD-1)

51

1. Reseat the diskette drive (FDD-2)
2. Diskette drive (FDD-2)

60

1. Reseat the hard disk drive (HDD-1)
2. Hard disk drive (HDD-1)

61

1. Reseat the hard disk drive (HDD-3)
2. Hard disk drive (HDD-3)

62

1. Reseat the hard disk drive in the
UltraBay (HDD-2)
2. Hard disk drive in the UltraBay (HDD-2)

63

1. Reseat the hard disk drive (HDD-4)
2. Hard disk drive (HDD-4)

70

PCMCIA-2 (replicator)

71

PCMCIA (under UltraBay)

72

PCMCIA slot assembly

90

CD-ROM drive

91

External CD-ROM drive

Note: The device ID and error codes are used to indicate
the detail portion of the FRU which caused theerror. If replacing a FRU does not correct a
problem, see the device ID or error code from theprevious failure. If they have changed, the cause
might be because the new FRU is defective or that
the FRU was incorrectly installed.
If the problem remains after replacement of the
FRUs, go to “Undetermined Problems” onpage 371.

Beep Symptoms
Symptom / Error

FRU / Action in Sequence

Continuous beeps.

System board

One beep and a blank,
unreadable, or flashing
LCD.

1. Reseat the LCD
connector.
2. LCD assembly
3. Video card
4. System board
5. DC/DC card

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IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

One beep, and the message“Unable to access bootsource.”1. Boot device
2. System board

One long, two short beeps
and a blank or unreadable
LCD.

1. System board
2. Video card
3. LCD assembly

One long beep followed byfour short beeps each time
the power switch isoperated.
(System cannot power-on
due to low battery voltage.)

Connect the AC Adapter
or install a fully charged
battery.

One beep every second.
(System is shutting down
due to low battery voltage.)

Connect the AC Adapter
or install a fully charged
battery (allows system tocomplete shutdown
before changing thebattery).

Two short beeps with error
codes.

POST error. See“Numeric Error Codes” onpage 359.

Two short beeps with blankscreen.

System board

No Beep Symptoms
Symptom / Error

FRU / Action in Sequence

No beep, power-on indicator
not on, and a blank LCD
during POST.

1. Go to “Power
Systems Checkout”
on page 349.
2. System board
3. DC/DC card
4. Power sources

No beep, power-on indicatoron, and a blank LCD during
POST.

1. System board
2. DC/DC card
3. CPU card

No beep, power-on indicatoron, and a blinking cursor
only during POST.

1. System board
2. CPU card
3. DC/DC card

No beep during POST but
system runs correctly.

1. Turn the volume up
and check the speaker.
2. Check whether the
DSP card or Audio(ESS) card connector
is loose and reseat
the connector.
3. Speaker
4. DSP card/audio (ESS)card
5. DC/DC card

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365

LCD-Related Symptoms
Important
The LCD for the notebook computer contains over
921, 000 thin-film transistors (TFTs). A small numberof missing, discolored, or lighted dots (on all the time)
is characteristic of TFT LCD technology, but excessive
pixel problems can cause viewing concerns. The LCD
should be replaced if the number of missing,
discolored, or lighted dots in any background is 21 or
more.
Symptom / Error

FRU / Action in Sequence

No beep, power-on indicatoron, and a blank LCD during
POST.

1.
2.
3.
4.



LCD backlight notworking, orLCD too dark, orLCD brightness cannot
be adjusted, orLCD contrast cannot
be adjusted.



LCD screen
unreadable, orCharacters missing
pels, or
Screen abnormal, orWrong color displayed.

LCD has extra horizontal orvertical lines displayed.

System board
DC/DC card
Video card
CPU card

1. Reseat the LCD
connectors.
2. LCD assembly
3. DC/DC card

1. See important notefor “LCD-Related
Symptoms.”
2. Reseat all LCD
connectors.
3. LCD assembly
4. System board
5. Video card
LCD assembly

Keyboard/TrackPoint III-Related
Symptoms
Symptom / Error

FRU / Action in Sequence

Keyboard (one or morekeys) does not work.

1. Reseat the keyboard
connector on thevideo card.
2. Reseat the threekeyboard cables on the
keyboard card.
3. Keyboard
4. Video card
5. System board

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IBM Mobile Systems - ThinkPad HMM Volume 3Symptom / Error

FRU / Action in Sequence

TrackPoint III does notwork.

1. Reseat the keyboard
connector on thevideo card.
2. Go to “TrackPoint III
Checkout” onpage 346.
3. Keyboard
4. Video card
5. System board

Pointer moves automaticallyor does not work correctly.

1. See “TrackPoint III
Checkout” onpage 346.

Indicator-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Indicator incorrectly remains
off or on, but system runs
correctly.

1. Reseat the LCD
connector on thevideo card.
2. LCD assembly
3. Video card
4. System board

LCD Information Panel-Related
Symptoms
Symptom / Error

FRU / Action in Sequence

An icon in the LCD
information panel remains
off or on, but the systemruns correctly.

1. Reseat the keyboard
cable in the video
card connector.
2. Reseat the LCD
information panel cableconnectors in the
keyboard.
3. Keyboard
4. Video card
5. System board

Power-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Power shuts down during
operation.

1. Go to “Power
Systems Checkout”
on page 349.
2. Battery pack
3. Remove the battery
pack and let it cool for
2 hours.
4. DC/DC card
5. Power sources

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367

Symptom / Error

FRU / Action in Sequence

The system will not
power-off.
(See “Power Shutdown
Switch” on page 340.)

1. Press the power
shutdown switch.
2. System board

Function/Audio-Related Symptoms
Symptom / Error

FRU / Action in Sequence

The system will not suspendor resume by opening or
closing the keyboard.

1. Go to “Suspend
Mode” on page 356
and check that thecomputer can entersuspend mode.
2. Boot an operating
system and press
Fn+F4. If thecomputer enterssuspend mode,suspect that theapplication program is
not working properly.
3. Keyboard card
4. Video card
5. System board

The system will not suspendor resume by opening or
closing the LCD.

1. Go to “Suspend
Mode” on page 356,
and check that thecomputer can entersuspend mode.
2. Boot an operating
system and press
Fn+F4. If thecomputer enterssuspend mode,suspect that theapplication program is
not working properly.
3. LCD assembly
4. Video card
5. System board

Battery fuel gauge does notgo higher than 90%.

Go to “Checking theBattery Pack” onpage 351 and see thenote.

Memory count (size)
appears different from
actual size.

Go to “Memory Checkout”
on page 342.

System configuration does
not match the installed
devices.

Go to “Checking theInstalled Devices List” onpage 374.

System hangs intermittently.

Go to “Intermittent
Problems” on page 370.

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IBM Mobile Systems - ThinkPad HMM Volume 3

DSP-Related Symptoms
Symptom / Error

FRU / Action in Sequence

In OS/2, DOS, or Windows
multimedia programs, nosound comes from thecomputer. (Only system
beeps are heard at
power-on.)

1. Reseat the DSP card.
2. Go to “DSP Card
Checkout” onpage 346 and checkthe DSP card.
3. Check that the device
driver is installed
correctly.

In OS/2, DOS, or Windows,
the modem does not work.

1. Check that the DSP
Modem is active.
OS/2 and Windows:
Click the DSP Modem
icon in the ThinkPad
Feature program.
DOS:
Run the MWMODEM
ON command.
2. Reseat the DAA
module.

ESS-Related Symptoms
Symptom / Error

FRU / Action in Sequence

In OS/2, DOS, or Windows
multimedia programs, nosound comes from thecomputer. (Only system
beeps are heard at
power-on.)

1. Reseat the audio(ESS) card.
2. Go to “Audio (ESS)
Card Checkout” onpage 346 and checkthe audio (ESS) card.
3. Check that the device
driver is installed
correctly.

Peripheral-Device-Related Symptoms
Symptom / Error

FRU / Action in Sequence

External display does notwork correctly.

1. See “External Display
Self-Test” in“Common Devices
Checkout” section.

Printer problems.

1.
2.
3.
4.

Serial or parallel port device
problems.

1. Device
2. Device cable
3. System board

Run printer self-test.
Parallel port device
Cable
System board

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Infrared-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Unable to communicate
using the Infrared (IR) Port.

1. Make sure the setup
for the IR is correct.
2. Make sure there areno fluorescent lights
near the computer.
The computer may
receive optical noisefrom the fluorescentlight.
3. Reseat the IR unit.
4. Run the advanced
diagnostic test. If anerror occurs and a
FRU code is displayed,replace the parts
shown by the FRU
code.

Other Symptoms
Symptom / Error

FRU / Action in Sequence

Errors occur only when Port
Replicator is used.

See “Port Replicator
Checkout” in the“Common Devices
Checkout” section.

PCMCIA slot pin isdamaged.

PCMCIA slots assembly

Note: If you cannot find a symptom or error in this list
and the problem remains, see “Undetermined
Problems” on page 371.

Intermittent Problems
Intermittent system hang problems can be caused by avariety of reasons that have nothing to do with a hardware
defect, such as cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should only beconsidered when a recurring problem exists.
When analyzing the intermittent problem, do the following:
1. Run the advanced diagnostic test for the systemboard in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by
the FRU code. Rerun the test to verify that there are
no more errors.

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IBM Mobile Systems - ThinkPad HMM Volume 3

Undetermined Problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices areincorrect, a short circuit is suspected, or the system is
inoperative. Follow the procedures below to isolate thefailing FRU (do not isolate nondefective FRUs).
Verify that all attached devices are supported by thecomputer.
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power Systems
Checkout” on page 349.)
1. Power-off the computer.
2. Check the cables, wires, and connectors for shortcircuits and open circuits. Visually check them fordamage. If any problems are found, replace the
FRU.
3. Remove or disconnect all of the following devices:a. Non-IBM devices
b. Devices attached to the expansion bus
connector
c. Printer, mouse, and other external devices
d. Battery packe. Hard disk drive
f. Diskette drive/CD-ROM drive or the device
attached in the UltraBay.
g. DIMMh. PC Cards
4. Power-on the computer.
5. Determine if the problem has changed.
6. If the problem does not occur again, reconnect theremoved devices one at a time until you find thefailing FRU.
7. If the problem remains, replace the following FRUs
one at a time. Do not replace a nondefective FRU.
 DC/DC card
 Video card Keyboard card
 LCD assembly System board
 DSP card or audio (ESS) card
 CPU card

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371

Related Service ProceduresThis section provides information about the following:









“Status Indicators”“How to Run the Diagnostics” on page 373“Error Log” on page 374“Checking the Installed Devices List” on page 374“Password Combinations (POP, HDP, PAP)” on
page 375“How to Run a Low-Level Format” on page 375“PC Test Card LED” on page 375“Fn Key Combinations” on page 376

Status Indicators
The system status indicators show the current computer
status in different colors (green, yellow, and orange).
SymbolColor

Meaning

Green

Battery fully charged

OrangeBattery charging

BlinkingorangeBattery needs charging

Green

Computer is in suspend
mode

Blinking
Green

Computer is enteringsuspend mode or
hibernation mode, or isresuming normal operation

GreenPower onLCD Information Panel
The LCD information panel shows the current computer
status using these icons:

Icon

Meaning.1/

Speaker.2/

Remaining battery

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IBM Mobile Systems - ThinkPad HMM Volume 3

Icon

Meaning.3/

Secondary battery status.4/

Main battery status.5/

Diskette drive in-use.6/

Hard disk in-use.7/

Numeric lock.8/

Caps lock.9/

Scroll lock

How to Run the Diagnostics
Use either the TrackPoint III or the cursor move keys tointeract with the tests. The Enter key works the same as
selecting the OK icon to reply OK.
1. Press and hold the F1 key; then power-on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
2. Select Test and press Enter.
3. Select a device and press Enter to run the test.
4. The test progress screen appears.
5. “OK” appears when the test ends without any errors.
6. Start the Advanced Diagnostic test by pressing
Ctrl+A on the basic diagnostic menu screen.
7. Select Tool to install the tools.
Note: The following tools are required.
FDD:
Erasable 2HD diskette
Parallel:Wrap plug (P/N 72X8546)
Serial:Wrap plug (P/N 72X8546)
PCMCIA:PC Test Card (P/N 35G4703)
CDROM:
Any CD (data CD is
recommended)
8. Select a device, press the Spacebar, and install thetool. Multiple devices can be selected by repeating
this step.
A √ mark appears beside the selected devices.
9. Select OK and press Enter if the selection is OK.
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373

10. Select a device and press Enter to start the tests.
Note: Don't touch the keyboard and pointing device
when the system board test in running. Thismay cause an error.
11. Select Test All to test all devices.
12. Select Loop Test to run the tests in a repeated loop.
A loop option menu appears where you can select a
device loop or all-device loop. Select a device bypressing the Spacebar. Repeat this step to selectmultiple devices. Press Enter to start the diagnostic
loop. If no device is selected, all device tests arelooped.
13. To exit the loop, keep pressing Ctrl+Pause until thetest exits. A beep sounds to notify that the exit
interrupt is sensed by the test program.

Error Log
Diagnostic errors are printed on the printer that is attachedto the parallel port when the error is detected. The error isalso logged in the system memory.
Do the following to display the errors.
1.
2.
3.
4.
5.

End the test, if it is running.
Press Ctrl+A to select the advanced diagnostic mode.
Press Ctrl+E.
The error log appears.
To exit the screen, select the cancel icon or press
Esc.

The error log is not saved when the system is powered-off.

Checking the Installed Devices List
If a device is installed but the icon appears in a gray shaderather than a dark shade on the basic diagnostics screen,
the device is defective. Reseat the device connectors. If
the symptom remains, replace the device or the systemboard. If needed, adjust the contrast control to clearly
distinguish the shades of the icon.
If a device that is not installed appears in a dark shade (forexample, FDD-2 appears in a dark shade when no second
FDD is installed), do the following:
1. Replace the first device in the configuration, such asan FDD-1, an HDD-1, or a PCMCIA-1.
2. If the problem remains, replace the system board.
The PCMCIA-1, Parallel, and Serial icons are always
displayed in a dark shade because the icons represent
subsystems of the system board and not the attachment of
the devices.
The FDD-1, HDD-1, or PCMCIA-1 icons represent the first
drive in the system configuration for each type of device.
Similarly, the FDD-2 or PCMCIA-2 icons represent the374

IBM Mobile Systems - ThinkPad HMM Volume 3second drive, usually attached through a port replicator oran expansion unit. The HDD-2 icon represents the harddisk drive in the UltraBay. The HDD-3 and HDD-4 icons
represent the hard disk drive, attached through an
expansion unit.

Password Combinations (POP, HDP,
PAP)
When the power-on password (POP), hard disk password(HDP), and supervisor password (PAP) are used, thefollowing situations may occur:When POP is the same as HDP-1 or HDP-2
The POP prompt appears, but one of the HDP
prompts does not appear.

When POP is not the same as HDP-1 and HDP-2
The POP, HDP-1, and HDP-2 prompts all appear.

When PAP is used with HDP-1 or HDP-2
When PAP is used, HDP-1 or HDP-2 are enabled
automatically, but no HDP prompt appears. HDP-1
and HDP-2 are set the same as PAP.

How to Run a Low-Level Format
Do the following to format the hard disk.
Attention: Make sure the address of the drive to beformatted is correct. This procedure erases all
information on the disk.
1. Power-off the computer.
2. Insert the ThinkPad Hardware Maintenance Diskette
Version 1.20 into diskette drive A and power-on thecomputer.
3. Select Format the hard disk from the main menu.
4. Select the drive from the menu.
5. Follow the instructions on the screen.

PC Test Card LED
The green LED on the PC test card turns on when the
PCMCIA test is running. If the LED does not turn on,
check that the card is installed correctly by reseating thecard. If it still does not turn on after it is reseated, try
using another slot for the test. If the LED still does notturn on and the test fails, replace the FRU shown by the
diagnostic error code.

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375

Fn Key Combinations
The following table shows the Fn key and function key
combinations and their corresponding functions.
The Fn key works independently from the operating
system. The operating system obtains the status throughthe system management interface to control the system.
Fn +Description

F1

Reserved

F2

Fuel-Gauge display on or off

F3Standby mode invocation

F4

Suspend mode invocation

F5

Reserved

F6

Reserved

F7

LCD or CRT display

F8

Reserved

F9

Reserved

F10

Reserved

F11Power management mode
(toggling between high power, intelligent, andeconomy)F12

Hibernation invocation

376

IBM Mobile Systems - ThinkPad HMM Volume 3

Product Overview (760)The following table shows an overview of the system
features:

Model 760C or 760CD
FeatureDescription

ProcessorIntel Pentium 90 MHz with 256KB
L2 CacheIntel Pentium 120 MHz with
256KB L2 Cache

Bus architectureMemory(standard)

8MB (on the system board)

Memory (option)



CMOS RAM

114 bytes

VGA videoDiskette drive(removable)

Hard disk drive(removable)AT bus
VESA local bus for video
subsystem

4MB, 8MB, 16MB, DIMM (max.
40MB)
DIMM adapter

12.1-inch, 64K colors, 800×600
pixel TFT color LCD
10.4-inch, 64K colors, 800×600
pixel TFT color LCD
720KB, 1.2MB, 1.44MB, 2.88MB(4-mode), 3.5-inch
720KB, 1.2MB, 1.44MB (3-mode),
3.5-inch
760C– 360MB, 2.5-inch– 720MB, 2.5-inch
760CD– 810MB, 2.5-inch– 1200MB, 2.5-inch

Enhanced video
card



760CD
– Video accelerator– Video capture and overlay– Video composite in/out– MPEG hardware decoding– MPEG2

CD-ROM(removable)



760CD
– 5-inch, quadruple speed, IDE
interface

DSP card

Audio function
Fax/modem function
Telephony function
MWave function

Infrared transfer






Two IR ports
IrDA 1.0
ASK
1.15 million bps

PCMCIAOne Type-IIIor two Type-II

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377

Model 760E or 760ED
FeatureDescription

ProcessorIntel Pentium 120 MHz with
256KB L2 Cache
Intel Pentium 133 MHz with
256KB L2 Cache
Intel Pentium 150 MHz with
256KB L2 Cache
Intel Pentium 166 MHz with
256KB L2 Cache

Bus architectureMemory(standard)

8MB or 16MB (on the system board)

Memory (option)



CMOS RAM

114 bytes + 4 kilobytes

VGA videoDiskette drive(removable)

PCI bus
VESA local bus for video
subsystem

8MB, 16MB, 32MB, DIMM (max.
72MB or 80MB)
DIMM adapter

12.1-inch, 64K colors, 800×600
pixel TFT color LCD
12.1-inch, 64K colors, 1024×768
pixel TFT color LCD
720KB, 1.2MB, 1.44MB, 2.88MB(4-mode), 3.5-inch
720KB, 1.2MB, 1.44MB (3-mode),
3.5-inch

Hard disk drive(removable)







810MB, 2.5-inch
1.08GB, 2.5-inch
1.2GB, 2.5-inch
1.35GB, 2.5-inch
2.1GB, 2.5-inch

Enhanced video
card

760ED (enhanced model)– Video accelerator– Video capture and overlay– Video composite in/out– S-video in– MPEG hardware decoding– MPEG2

CD-ROM(removable)



760ED
– 5-inch, 4X, 6X, or 8X speed,
IDE interface

DSP card

Audio function
Fax/modem function
Telephony function
MWave function

Infrared transfer






Two IR ports
IrDA 1.0
ASK
1.15 million bps

PCMCIA/cardbus



One Type-IIIor two Type-II

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IBM Mobile Systems - ThinkPad HMM Volume 3

Model 760L or 760LD
FeatureDescription

ProcessorIntel Pentium 90 MHz with 256KB
L2 CacheIntel Pentium 120 MHz with
256KB L2 Cache

Bus architectureMemory(standard)

8MB (on the system board)

Memory (option)



CMOS RAM

114 Bytes

VGA videoDiskette drive(removable)AT bus
VESA local bus for video
subsystem

4MB, 8MB, 16MB, DIMM (max.
40MB)
DIMM adapter

12.1-inch, 64K colors, 800×600
pixel TFT color LCD
10.4-inch, 64K colors, 800×600
pixel TFT color LCD
720KB, 1.2MB, 1.44MB, 2.88MB(4-mode), 3.5-inch
720KB, 1.2MB, 1.44MB (3-mode),
3.5-inch

Hard disk drive(removable)



810MB, 2.5-inch
1.08GB, 2.5-inch
1.2MB, 2.5-inch

CD-ROM(removable)



760LD
– 5-inch, quadruple speed, IDE
interface

ESS card

Audio function

Infrared transfer






Two IR ports
IrDA 1.0
ASK
1.15 million bps

PCMCIAOne Type-IIIor two Type-II

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379

Model 760EL or 760ELD
FeatureDescription

ProcessorIntel Pentium 100 MHz w/o L2
CacheIntel Pentium 120 MHz w/o L2
CacheIntel Pentium 133 MHz w/o L2
Cache

Bus architectureMemory(standard)

8MB or 16MB (on the system board)

Memory (option)



CMOS RAM

114 bytes + 4 kilobytes

VGA videoDiskette drive(removable)

PCI bus
VESA local bus for video
subsystem

8MB, 16MB, 32MB, DIMM (max.
72MB or 80MB)
DIMM adapter

12.1-inch, 64K colors, 800×600
pixel TFT color LCD
11.3-inch, 256 colors, 800×600
pixel DSTN color LCD
720KB, 1.2MB, 1.44MB, 2.88MB(4-mode), 3.5-inch
720KB, 1.2MB, 1.44MB (3-mode),
3.5-inch

Hard disk drive(removable)



810MB, 2.5-inch
1.08GB, 2.5-inch
1.2GB, 2.5-inch

CD-ROM(removable)



760ELD– 5-inch, quadruple speed, IDE
interface

ESS card

Audio function

Infrared transfer






Two IR ports
IrDA 1.0
ASK
1.15 million bps

PCMCIA/cardbus



One Type-IIIor two Type-II

380

IBM Mobile Systems - ThinkPad HMM Volume 3

Model 760XL or 760XD
FeatureDescription

Processor



760XL/760XD– Intel MMX Pentium 166MHz
with 256KB L2 Cache

Bus architecture

PCI bus
VESA local bus for video
subsystem

Memory(standard)




760XL
– 16MB
760XD– 32MB (16MB on the systemboard and 16MB as DIMM)

Memory (option)

8 MB, 16MB, and 32MB DIMM

CMOS RAM

114 bytes + 4 kilobytes

VGA videoDiskette drive(removable)

Hard disk drive(removable)




760XD
– 12.1-inch, 64K colors,
1024×768 pixel XGA TFT
color LCD
760XL
– 12.1-inch, 64K colors,
800×600 pixel SVGA TFT
color LCD
720KB, 1.2MB, 1.44MB, 2.88MB(4-mode), 3.5-inch
720KB, 1.2MB, 1.44MB (3-mode),
3.5-inch
760XD– 3.0GB 2.5-inch
760XL– 2.1GB 2.5-inch

CD-ROM(removable)



760XD
– 5-inch, 8x speed, IDE
interface

Audio function



760XD
– DSP card
760XL
– ESS card
Infrared transfer






Two IR ports
IrDA 1.0
ASK
1.15 million bps

PCMCIA/cardbus



One Type-IIIor two Type-II

ThinkPad 760 (9546, 9547)

381

FRU Removals and Replacements
This section contains information about removals andreplacements.








Do not damage any part. Only certified and trained
personnel should service the computer.
The arrows in this section show the direction of
movement to remove a FRU, or to turn a screw torelease the FRU. The arrows are marked in numericorder, in square callouts, to show the correct
sequence of removal.
Any FRUs that must be removed before removing thefailing FRU are listed at the top of the page.
To replace a FRU, reverse the removal procedureand follow any notes that pertain to replacement.
See “Locations” on page 478 for internal cableconnections and arrangement information.
When replacing a FRU, use the correct screw size, as
shown in the procedure.
Safety Notice 1: Translation on page 8

Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or othersmall parts, are in place and are not left loose inside
the computer. Verify this by shaking the computerand listening for rattling sounds. Metallic parts or
metal flakes can cause electrical short circuits.
Safety Notice 3: Translation on page 10
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack asrequired by local ordinances or regulations.
Safety Notice 8: Translation on page 14
Before removing any FRU, power-off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.

382

IBM Mobile Systems - ThinkPad HMM Volume 31010 Rear Connector Door
Remove the center latch .1/; then remove the rearconnector door by flexing it .2/.

ThinkPad 760 (9546, 9547)

383

1020 Diskette Drive/CD-ROM Drive
Diskette Drive (Model Unique)Note: If the security latch .A/ is at the left position, push
and slide it to the right position (unlock).

384

IBM Mobile Systems - ThinkPad HMM Volume 3

CD-ROM Drive (Model Unique)
Attention
Note: Remove the CD-ROM drive exactly as shownin the figure. Do not apply any extra force to the
CD-ROM drive when removing it.
Note: If the security latch .A/ is at the left position, push
and slide it to the right position (unlock).

ThinkPad 760 (9546, 9547)

385

1030 Battery PackCD-ROM Drive (Model unique) (1020)

Note: Be careful that the computer does not fall backward
when the battery pack is removed.
If there is a spacer, open the spacer before removing thebattery pack.

386

IBM Mobile Systems - ThinkPad HMM Volume 31040 Hard Disk Drive

Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Attention

Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physicalshock. Incorrect handling can cause damage andpermanent loss of data on the hard disk. Before
removing the hard disk drive, have the user make a
backup copy of all the information on the hard disk.
Never remove the hard disk drive while the system isoperating or is in suspend mode.
Note: Remove the hard disk drive exactly as shown in
the figure. Do not apply any extra force to the harddisk drive when removing it.

Note: After replacing the hard disk drive, latch theremoval strap into the correct position.

ThinkPad 760 (9546, 9547)

387

1050 DIMM
760XL/760XD




388

Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)

IBM Mobile Systems - ThinkPad HMM Volume 3

Other Models

1Turn the computer upside down.

2

1
1

3

ThinkPad 760 (9546, 9547)

389

5

5
4

390

4

IBM Mobile Systems - ThinkPad HMM Volume 3Note: When installing the DIMM, do the following:
1. Find the notch .1/ on the side of the DIMM.
2. With the notched end of the DIMM toward theright side of the socket .2/, insert the DIMM,
at an angle of approximately 20°, into thesocket; then press it firmly.
3. Pivot the DIMM until it snaps into place.

1

2

2
1

Side View

12
20

ThinkPad 760 (9546, 9547)

391

1060 Top CoverDiskette Drive/CD-ROM Drive (1020)
Battery Pack (760C/760L/760E/760EL) (1030)
Hard Disk Drive (1040)

Note: When replacing the top cover, be careful not todamage the resume switch, shown in the figure.

1

2

4 mm
8 mm,
Flathead3

5 mm, Flathead
4 mm

Top CoverResume Switch

392

IBM Mobile Systems - ThinkPad HMM Volume 31070 Keyboard Unit

Top Cover (1060)

When replacing the keyboard unit, connect the keyboard
connector as shown in the figure; then replace the
keyboard.

ThinkPad 760 (9546, 9547)

393

1080 LCD UnitDiskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)

3 6 mm6
4
5

When replacing
1
2

394

IBM Mobile Systems - ThinkPad HMM Volume 31090 Front IR
Models 760XL/760XD








Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
System Board Assembly (1100)

After removing the DIMM adapter card, remove the front
IR.

ThinkPad 760 (9546, 9547)

395

Other ModelsDiskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
1
8 mm
8 mm

2
2

4 mm

3

4

396

IBM Mobile Systems - ThinkPad HMM Volume 31095 Rear IR






Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
LCD Unit (1080)
1 6 mm2

ThinkPad 760 (9546, 9547)

397

1100 System Board Assembly








Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
Rear IR (1090)

Note:

In step 1, gently pushing the shaded area ( 1 ), lift
the switch cover halfway up ( 2 ), as shown. Thenpull the switch lever out to remove ( 3 ).

398

IBM Mobile Systems - ThinkPad HMM Volume 3Notes:1. Step .4/ is a DSP-model-unique step. DSP modelsare:Models 760C/760E/760CD/760ED/760XD

2. In step .5/, gently push the levers to avoid flexingthem.

ThinkPad 760 (9546, 9547)

399

Models 760XL/760XD
For Models 760XL or 760XD, raise the system board
assembly a bit to disconnect the DIMM adapter card instep .12/. Be careful not to damage the IR flexible
cable under the DIMM adapter card. Then remove the IR
flexible cable in step .13/.

When replacing:
Refer to the following figure to locate the DIMM
adapter card. Make sure that the connector of the
DIMM adapter card is connected firmly. A loose or
wrong connection causes memory error.

400

IBM Mobile Systems - ThinkPad HMM Volume 3

Other Models

ThinkPad 760 (9546, 9547)

401

When replacing:
When replacing the power switch, align the powerswitch and power actuator in step .2/ of thefollowing figure. Check that the power switch
operates correctly before tightening any screws.

402

IBM Mobile Systems - ThinkPad HMM Volume 31125 Upper Shield









Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
Front IR and Rear IR (1090)
System Board Assembly (1100)

ThinkPad 760 (9546, 9547)

403

1110 Video Card/Fan (Model Unique)










Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
Front IR and Rear IR (1090)
System Board Assembly (1100)
Upper Shield (1125)
Check the Model

There are two 760ED models: One has a standard
video card built in, and the other has an enhanced
video card built in. If you install a incorrect video card,
the LCD will not work. Check to be sure which 760ED
model you are servicing.

Standard Video Card

760C/760L/760E/760ED/760EL/760LD/760ELD

When replacing. The following figure shows thecable routing:404

IBM Mobile Systems - ThinkPad HMM Volume 3



760XL
Note: Be careful not to touch the fan rotor whenassembling or disassembling.

When replacing:
The following figure shows the microphone routing.

ThinkPad 760 (9546, 9547)

405

Enhanced Video Card

In step .5/, turn the video card upside down to disconnect
the cable in step .6/.

406

IBM Mobile Systems - ThinkPad HMM Volume 3For Model 760XD, remove the fan as follows.
Note: Be careful not to touch the fan rotor whenassembling or disassembling.

ThinkPad 760 (9546, 9547)

407

When replacing:
The following figure shows the cable routing.


Model 760XD

Other Models

1135 External Diskette Drive Connector











Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
Front IR and Rear IR (1090)
System Board Assembly (1100)
Upper Shield (1125)
Video Card (1110)

760CD/760LD/760E/760ED/760EL/760ELD/760XL/760XD

408

IBM Mobile Systems - ThinkPad HMM Volume 31120 DC/DC Card











Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
Front IR and Rear IR (1090)
System Board Assembly (1100)
Upper Shield (1125)
Video Card (1110)

760XL/760XD.1/: DC/DC Card
.2/: Air Duct

Other Models

ThinkPad 760 (9546, 9547)

409

When replacing:Make sure that the microphone cable does notcatch between the system board and the spacer on
the DC/DC card.

410

IBM Mobile Systems - ThinkPad HMM Volume 31130 DSP Card/ Audio (ESS) Card












Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
Front IR and Rear IR (1090)
System Board Assembly (1100)
Upper Shield (1125)
Video Card (1110)
DC/DC Card (1120)

Notes:
1. There are two models for 760E, slim type and thicktype. Check the screw length in step .2/ whenremoving the DSP card.
2. See the following table and make sure to replace thecorrect card.
Audio (ESS) Card

DSP card

760L 760LD 760EL
760ELD 760XL

760C 760E 760CD
760ED 760XD

Slim-Type Models (Models 760C/760E/760L)

ThinkPad 760 (9546, 9547)

411

When replacing:
1. The following figure shows the cable routing.

2. When replacing the DSP card or the audio (ESS)
card, make sure that the connector on the card is notloose. If the connector does not connect properly, nosound will be produced.

412

IBM Mobile Systems - ThinkPad HMM Volume 3

Thick-Type Models (Other Models and 760E)

When replacing:
1. The following figure shows the cable routing formodels 760XL/760XD.

2. When replacing the DSP card or the audio (ESS)
card, make sure that the connector on the card is notloose. If the connector does not connect properly, nosound will be produced.

ThinkPad 760 (9546, 9547)

413

1140 CPU Card













414

Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
Front IR and Rear IR (1090)
System Board Assembly (1100)
Upper Shield (1125)
Video Card (1110)
DC/DC Card (1120)
DSP Card / Audio (ESS) Card (1130)

IBM Mobile Systems - ThinkPad HMM Volume 3

Be carefulConnect the CPU card using the exact procedureshown in the figures, and make sure that the two
CPU card connectors are connected properly. If
these connectors are not connected, you cannot
power on the computer.
Do not apply any extra force to the shaded
area of the CPU card when connecting.

ThinkPad 760 (9546, 9547)

415

1150 System Board and PCMCIA Slot
Assembly












Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
LCD Unit (1080)
Front IR and Rear IR (1090)
Video Card (1110)
DC/DC Card (1120)
DSP Card / Audio (ESS) Card (1130)
CPU Card (1140)

Notes:
1. The system unit serial number must be restored when
the system board is replaced. To restore the system
unit serial number, select the option “Set system
identification” on the maintenance diskette. The
EEPROM on the system board contains the vital
product data (VPD), the system unit serial number,system board system number, and othercomputer-unique data.
Note: Do not power off the computer when restoring
the VPD.
The system unit serial number label is attached to thebase cover.
2. Before removing and replacing the system board,
make sure that the PCMCIA cards are removed andthe eject levers are not sticking out.
3. Do not pull the PCMCIA slot assembly while removing
the system board.
4. When handling the PCMCIA slot assembly, be careful
not to disassemble any part of it. The slot assemblyis not solidly fixed when it is removed from thesystem board or the FRU.
5. Be sure to unlock both ends of the PCMCIA
connector before removing the PCMCIA slot
assembly from the system board (.2/).

416

IBM Mobile Systems - ThinkPad HMM Volume 3

Models 760XL/760XD

ThinkPad 760 (9546, 9547)

417

Other Models

418

IBM Mobile Systems - ThinkPad HMM Volume 31160 Palm RestTop Cover (1060)
Keyboard Unit (1070).1/Turn the keyboard upside down.
5 mm, Flathead

2

4 mm

4 mm

.3/Turn the keyboard right-side up.
4
5

2

4

1
3
1

2

ThinkPad 760 (9546, 9547)

419

1170 Keyboard, Information Panel
Top Cover (1060)
Keyboard Unit (1070)
Palm Rest (1160)



Note: When pulling the lever off the foot .1/, separate
the lower part of the lever from the foot by insertinga pointed device through the hole in the foot.

2
4 mm

3

2

4

1
1

420

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 760 (9546, 9547)

421

1180 Keyboard Cable
Top Cover (1060)
Keyboard Unit (1070)
Palm Rest (1160)



Note: When pulling the lever off the foot .1/, separate
the lower part of the lever from the foot by insertinga pointed device through the hole in the foot.

2
4 mm

3

2

4

1
1

422

IBM Mobile Systems - ThinkPad HMM Volume 3Notes:1. When removing the latch from the keyboard base .6/,
push both ends of the latch simultaneously.
2. When replacing the keyboard cable, place the cablecorrectly, as shown by the artwork in the circle.

ThinkPad 760 (9546, 9547)

423

1190 Keyboard Card
Battery Pack (760C/760L/760E/760EL) (1020)
Diskette Drive/CD-ROM Drive (1020)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
Palm Rest (1160)








1
4 mm

2

3

2
1
1

4
5

424

IBM Mobile Systems - ThinkPad HMM Volume 3

1200 Backup Battery, Speaker, Standby
Battery








Diskette Drive/CD-ROM Drive (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
Top Cover (1060)
Keyboard Unit (1070)
Palm Rest (1160)
Keyboard Card (1190)
Safety Notice 4: Translation on page 11

The lithium battery can cause a fire, explosion, orsevere burn. Do not recharge it, remove its polarized
connector, disassemble it, heat it above 100°C(212°F), incinerate it, or expose its cell contents towater. Dispose of the battery as required by local
ordinances or regulations. Use only the battery in theappropriate parts listing. Use of an incorrect battery
can result in ignition or explosion of the battery.
Safety Notice 2: Translation on page 9Some standby batteries contain a small amount ofnickel and cadmium. Do not disassemble it, recharge
it, throw it into fire or water, or short-circuit it. Disposeof the battery as required by local ordinances orregulations. Use only the battery in the appropriate
parts listing. Use of an incorrect battery can result in
ignition or explosion of the battery.

ThinkPad 760 (9546, 9547)

425

.1/ for Backup Battery.2/ for Standby Battery.1/ .2/ for Speaker12

Note: When replacing the speakers, backup battery, andstandby battery, position the cables as shown.

426

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Removal and Replacement
This section discusses removal and replacement
procedure for the LCD unit of the ThinkPad 760x series.
After removing the LCD unit, check its part number; then
go to the appropriate section:
P/N 29H9226 (12.1 SVGA):
There are two types of LCDs with the part number
29H9226. They differ in the location of the brightness
control slide knob:–

ASM P/N 29H9029: Go to “LCD Unit, 12.1
SVGA (P/N 29H9226, ASM P/N 29H9029)” on
page 428.

–

ASM P/N 73H6599: Go to “LCD Unit, 12.1
SVGA (P/N 29H9226, ASM P/N 73H6599)” on
page 433.

P/N 29H9227 (10.4 SVGA): Go to “LCD Unit, 10.4
SVGA (P/N 29H9227)” on page 439.

P/N 46H5355 (10.4 VGA): Go to “LCD Unit, 10.4
VGA (P/N 46H5355)” on page 444.

P/N 39H6232 (11.3 SVGA): Go to “LCD Unit, 11.3
DSTN (P/N 39H6232)” on page 449.

P/N 82H8486 (12.1 XGA): Go to “LCD Unit, 12.1
XGA” on page 454.

P/N 82H8496 (12.1 SVGA): Go to “LCD Unit, 12.1
SVGA (P/N 82H8496)” on page 460.



P/N 11J8867 (12.1 SVGA): Go to “LCD Unit, 12.1
SVGA (P/N 11J8867, ASM P/N 11J8855)” on
page 466.

P/N 46H5725 (ASM P/N 46H5723) (12.1 SVGA): Go
to “LCD Unit, 12.1 SVGA (P/N 46H5725, ASM P/N
46H5723)” on page 472



P/N 46H5735 (ASM P/N 46H5731) (12.1 XGA): Go to“LCD Unit, 12.1 XGA” on page 454.

ThinkPad 760 (9546, 9547)

427

LCD Unit, 12.1 SVGA (P/N 29H9226,
ASM P/N 29H9029)
1010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Step

Length (Quantity).2/

M2.5 x 8 mm (4).3/M2 x 4.3 mm (6)

Memo

Flat
head

Note: Make sure you use the correct screw when replacing.

428

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 760 (9546, 9547)

429

1020 LCD Panel, Interface Cable
Assembly

LCD Cover (1010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.
The LCD panel is latched to the rear cover. Remove the
LCD panel by bending the rear cover in step .6/. Toomuch force will break the rear cover.

430

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 760 (9546, 9547)

431

1030 Hinges


LCD Cover (1010)



LCD Panel (1020) (with interface cable assembly)

Step

Length (Quantity).1/

M2 x 4.3 mm (4)Memo

Note: Make sure you use the correct screw when replacing.

432

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Unit, 12.1 SVGA (P/N 29H9226,
ASM P/N 73H6599)
2010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Step

Length (Quantity).2/

M2.5 x 9 mm (2).3/

M2.5 x 6 mm (2).5/M2 x 4.3 mm (6)

Memo

Flat
head

Note: Make sure you use the correct screw when replacing.

ThinkPad 760 (9546, 9547)

433

Lift the LCD front cover slightly; then remove themicrophone cable.

434

IBM Mobile Systems - ThinkPad HMM Volume 3

2020 LCD PanelLCD Cover (2010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.
Lift the LCD panel slightly and disconnect the connector for
the interface cable. If there is kapton tape on the rear of
the panel, remove it.

Step

Length (Quantity).1/

M2.5 x 6 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

ThinkPad 760 (9546, 9547)

435

When replacing
Attention:
1. The inverter card is very fragile, and flexing theinverter card can seriously damage the card.
Carefully connect the interface cable as shown.
2. Carefully ensure the inverter card is securely
connected .A/. A loose or incorrect connection
can cause a serious problem.

436

IBM Mobile Systems - ThinkPad HMM Volume 32030 Interface Cable Assembly, Hinges


LCD Cover (2010)

LCD Panel (2020).1/: When replacing the interface cable assembly.2/, .3/: When replacing the hinges

Step

Length (Quantity).2/

M2 x 4.3 mm (4)Memo

Note: Make sure you use the correct screw when replacing.

ThinkPad 760 (9546, 9547)

437

When replacing
Replace the kapton tape as shown below.

Position the microphone cable as shown.

438

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Unit, 10.4 SVGA (P/N 29H9227)
3010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Step

Length (Quantity).2/

M2.5 x 6 mm (2).3/M2 x 5 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

ThinkPad 760 (9546, 9547)

439

Lift the LCD front cover slightly; then remove themicrophone cable.

When replacing
Position the microphone cable as shown.below.

440

IBM Mobile Systems - ThinkPad HMM Volume 33020 LCD Panel, Interface Cable
Assembly

LCD Cover (3010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.

Step

Length (Quantity).1/

M2.5 x 4 mm (1).2/M2 x 4.3 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

ThinkPad 760 (9546, 9547)

441

When removing the interface cable assembly, remove thekapton tape on the cable; then disconnect the threeconnecters as shown.

When replacing
Be careful not to place the core under the LCD panel.
When replacing
Attention:
1. The inverter card is very fragile, and flexing theinverter card can seriously damage the card.
Carefully connect the interface cable as shown.
2. Carefully ensure the inverter card is securely
connected .A/. A loose or incorrect connection
can cause a serious problem.

442

IBM Mobile Systems - ThinkPad HMM Volume 33030 Hinges


LCD Cover (3010)



LCD Panel (3020) (with interface cable assembly)

Step

Length (Quantity).1/

M2.5 x 4 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

ThinkPad 760 (9546, 9547)

443

LCD Unit, 10.4 VGA (P/N 46H5355)
4010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Step

Length (Quantity).2/

M2.5 x 6 mm (2).3/M2 x 5 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

444

IBM Mobile Systems - ThinkPad HMM Volume 3

Lift the LCD front cover slightly; then remove themicrophone cable.

When replacing
Position the microphone cable as shown.

ThinkPad 760 (9546, 9547)

445

4020 LCD PanelLCD Cover (4010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.

Step

Length (Quantity).1/

M2 x 4.3 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

446

IBM Mobile Systems - ThinkPad HMM Volume 3

Lift the LCD panel slightly .2/; then disconnect the flexible
cable .3/ and .4/.

When replacing
Attention:
1. The inverter card is very fragile, and flexing theinverter card can seriously damage the card.
Carefully connect the interface cable as shown.
2. Carefully ensure the inverter card is securely
connected .A/. A loose or incorrect connection
can cause a serious problem.

ThinkPad 760 (9546, 9547)

447

4030 Interface Cable Assembly, Hinges


LCD Cover (4010)

LCD Panel (4020).1/, .2/: When replacing the interface cable
assembly.3/, .4/: When replacing the hinges

Step

Length (Quantity).1/ .3/M2.5 x 4 mm (3)Memo

Note: Make sure you use the correct screw when replacing.

When replacing
Don't locate the core under the LCD panel.

448

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Unit, 11.3 DSTN (P/N 39H6232)
5010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Step

Length (Quantity).2/

M2.5 x 6 mm (4).3/

M2.5 x 9 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

ThinkPad 760 (9546, 9547)

449

Lift the LCD front cover slightly; then remove themicrophone cable.

When replacing
Position the microphone cable as shown.

450

IBM Mobile Systems - ThinkPad HMM Volume 35020 LCD PanelLCD Cover (5010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.

Step

Length (Quantity).1/

M2.5 x 6 mm (3)Memo

Note: Make sure you use the correct screw when replacing.

ThinkPad 760 (9546, 9547)

451

Lift the LCD panel a bit .3/, then disconnect the flexible
cable .4/.

When replacing
Attention:
1. The inverter card is very fragile, and flexing theinverter card can seriously damage the card.
Carefully connect the interface cable as shown.
2. Carefully ensure the inverter card is securely
connected .A/. A loose or incorrect connection
can cause a serious problem.

452

IBM Mobile Systems - ThinkPad HMM Volume 35030 Interface Cable Assembly, Hinges


LCD Cover (5010)



LCD Panel (5020).1/: When replacing the interface cable assembly.2/: When replacing the hinges

ThinkPad 760 (9546, 9547)

453

LCD Unit, 12.1 XGA
P/N 82H8486
P/N 46H5735, ASM P/N 46H5731

6010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Step

Length (Quantity).2/

M2.5 x 9 mm (2).3/

M2.5 x 6 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

454

IBM Mobile Systems - ThinkPad HMM Volume 3

Lift the LCD front cover slightly; then remove themicrophone cable.

ThinkPad 760 (9546, 9547)

455

6020 LCD PanelLCD Cover (6010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.

Step

Length (Quantity).1/

M2.5 x 6 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

456

IBM Mobile Systems - ThinkPad HMM Volume 3

Lift the LCD panel a bit; then disconnect the interface
cable connector.

When replacing
Attention:
1. The inverter card is very fragile, and flexing theinverter card can seriously damage the card.
Carefully connect the interface cable as shown.
2. Carefully ensure the inverter card is securely
connected .A/. A loose or incorrect connection
can cause a serious problem.

ThinkPad 760 (9546, 9547)

457

6030 Interface Cable Assembly, Hinges


LCD Cover (6010)



LCD Panel (6020).1/: When replacing the interface cable assembly.2/, .3/: When replacing the hinges

Remove the kapton tape in step .1/.

Step

Length (Quantity).2/

M2.5 x 4 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

458

IBM Mobile Systems - ThinkPad HMM Volume 3

When replacing
Replace the kapton tape as shown below.

Position the microphone cable as shown.

ThinkPad 760 (9546, 9547)

459

LCD Unit, 12.1 SVGA (P/N 82H8496)
7010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Step

Length (Quantity).2/

M2.5 x 9 mm (2).3/

M2.5 x 6 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

460

IBM Mobile Systems - ThinkPad HMM Volume 3

Lift the LCD front cover slightly; then remove themicrophone cable.

ThinkPad 760 (9546, 9547)

461

7030 LCD PanelLCD Cover (7010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.
Lift the LCD panel slightly and disconnect the connector for
the interface cable. If there is kapton tape on the rear of
the panel, remove it.

Step

Length (Quantity).1/

M2.5 x 6 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

462

IBM Mobile Systems - ThinkPad HMM Volume 3

When replacing
Attention:
1. The inverter card is very fragile, and flexing theinverter card can seriously damage the card.
Carefully connect the interface cable as shown.
2. Carefully ensure the inverter card is securely
connected .A/. A loose or incorrect connection
can cause a serious problem.

ThinkPad 760 (9546, 9547)

463

7040 Interface Cable Assembly, Hinges


LCD Cover (7010)



LCD Panel (7020).1/: When replacing the interface cable assembly.2/, .3/: When replacing the hinges

Remove the kapton tape in step .1/.

Step

Length (Quantity).2/

M2.5 x 4 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

464

IBM Mobile Systems - ThinkPad HMM Volume 3

When replacing
Replace the kapton tape as shown below.

Position the microphone cable as shown below.

ThinkPad 760 (9546, 9547)

465

LCD Unit, 12.1 SVGA (P/N 11J8867,
ASM P/N 11J8855)
8010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Step

Length (Quantity).2/

M2.5 x 9 mm (2).3/

M2.5 x 6 mm (2).5/M2 x 4.3 mm (6)

Memo

Flat
head

Note: Make sure you use the correct screw when replacing.

466

IBM Mobile Systems - ThinkPad HMM Volume 3

Lift the LCD front cover slightly; then remove themicrophone cable.

ThinkPad 760 (9546, 9547)

467

8020 LCD PanelLCD Cover (8010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.
Lift the LCD panel slightly and disconnect the connector for
the interface cable. If there is kapton tape on the rear of
the panel, remove it.

Step

Length (Quantity).1/

M2.5 x 6 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

468

IBM Mobile Systems - ThinkPad HMM Volume 3

When replacing
Attention:
1. The inverter card is very fragile, and flexing theinverter card can seriously damage the card.
Carefully connect the interface cable as shown.
2. Carefully ensure the inverter card is securely
connected .A/. A loose or incorrect connection
can cause a serious problem.

ThinkPad 760 (9546, 9547)

469

8030 Interface Cable Assembly, Hinges


LCD Cover (8010)



LCD Panel (8020).1/: When replacing the interface cable assembly.2/, .3/: When replacing the hinges

Step

Length (Quantity).2/

M2 x 4.3 mm (4)Memo

Note: Make sure you use the correct screw when replacing.

470

IBM Mobile Systems - ThinkPad HMM Volume 3

When replacing
Position the microphone cable as shown.

ThinkPad 760 (9546, 9547)

471

LCD Unit, 12.1 SVGA (P/N 46H5725,
ASM P/N 46H5723)
9010 LCD CoverNotes:
1. Be careful not to scratch the LCD cover whenremoving the screw covers .1/.
2. The LCD cover has several latches. Release theselatches; then remove the LCD cover. Be careful notto break the latches.

Note: The front cover adhere to the LCD panel. The
circle in the figure shows the adhesive part.
Step

Length (Quantity).2/

M2.5 x 9 mm (2).3/

M2.5 x 6 mm (2).5/M2 x 4.3 mm (6)

Memo

Flat
head

Note: Make sure you use the correct screw when replacing.

472

IBM Mobile Systems - ThinkPad HMM Volume 3

Lift the LCD front cover slightly; then remove themicrophone cable.

ThinkPad 760 (9546, 9547)

473

9020 LCD PanelLCD Cover (9010)
Note

Be careful not to scratch or soil the surface of the LCD
panel when replacing it.
Lift the LCD panel slightly and disconnect the connector for
the interface cable. If there is kapton tape on the rear of
the panel, remove it.

Step

Length (Quantity).1/

M2.5 x 6 mm (2)Memo

Note: Make sure you use the correct screw when replacing.

474

IBM Mobile Systems - ThinkPad HMM Volume 3

When replacing
Attention:
1. The inverter card is very fragile, and flexing theinverter card can seriously damage the card.
Carefully connect the interface cable as shown.
2. Carefully ensure the inverter card is securely
connected .A/. A loose or incorrect connection
can cause a serious problem.

ThinkPad 760 (9546, 9547)

475

9030 Interface Cable Assembly, Hinges


LCD Cover (9010)



LCD Panel (9020).1/: When replacing the interface cable assembly.2/, .3/: When replacing the hinges

Step

Length (Quantity).2/

M2 x 4.3 mm (4)Memo

Note: Make sure you use the correct screw when replacing.

476

IBM Mobile Systems - ThinkPad HMM Volume 3

When replacing
Replace the kapton tape as shown below.

Position the microphone cable as shown.

ThinkPad 760 (9546, 9547)

477

Locations
Front View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/
.11/
.12/
.13/
.14/
.15/
.16/
.17/
.18/
.19/

478

LCD
Built-in Microphone
Brightness Control
Keyboard Risers
Auto Tilt Keyboard
External-Input-Device Connector
PCMCIA Slot
PCMCIA Slot
Security Keyhole
Release Latches
Front Infrared Port
Built-in Speaker
Front Palm Rest
TrackPoint III
Removable Diskette Drive or CD-ROM Drive(model-unique)
CD-ROM Eject Button (CD-ROM model)
Fn KeyLCD Indicator Panel
Volume Control

IBM Mobile Systems - ThinkPad HMM Volume 3

Rear View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/
.11/
.12/
.13/
.14/
.15/
.16/
.17/
.18/

Rear Door
Connector Door
MIDI/Joystick Port (model-unique)
External Diskette Drive Connector(model-unique)
Rear Infrared PortAir Duct (Model unique)
System Expansion Connector
Power Shutdown Switch
External Display Connector
Parallel Connector
Serial Connector
Power Jack
Option Cover
Headphone Jack
Microphone/Line-in Jack
Modem/Fax Port
Video In/Out Ports (model-unique)Power Switch

ThinkPad 760 (9546, 9547)

479

Inside View
.1/
.2/
.3/
.4/
.5/
.6/

480

Modem/Fax Port Release Latch
UltraBay
Battery Pack
Memory Slot
Security Latch
Removable Hard Disk Drive

IBM Mobile Systems - ThinkPad HMM Volume 3

Bottom View
.1/ Memory Slot (Model unique).2/ Serial Number

ThinkPad 760 (9546, 9547)

481

Power-On Password Connector.1/: Power-On Password Connector

482

IBM Mobile Systems - ThinkPad HMM Volume 3Parts Listing 760 (9546, 9547)
Model 760C (9546)

ThinkPad 760 (9546, 9547)

483

Index
1

25
26a
26b
27

Parts (760C)
LCD Assembly (12.1 TFT)
29H9226(U.S.-9546, model U21, U27, U28, U2A, U2H, U2J)LCD Assembly (10.4 TFT)
29H9227(U.S.-9546, model U22, U2B)
Standby Battery
29H9497
LCD Indicator Assembly Cover
39H7036
LCD Indicator Assembly
29H9220
Volume Knob
39H7037
See Keyboard Misc. parts
Keyboard Foot
39H7038
Keyboard FPC Bracket
39H7035
See Keyboard Misc. parts
TrackPoint III Cap
84G6536
Keyboard (See Keyboard Section)
Upper Shield Case
29H9212
Video Card
29H9207
Volume Connection Cable
29H9211
Mic Connection Cable
29H9210DSP Card
29H9205
Rear Shield Case
29H9200
System Board
29H9199
PC Card Slot
39H7019
Eject Button
39H7018
Battery Pack (Li-ion)
29H9232
HDD Removable Strap
29H9236
Hard Disk Drive (720 MB, 12.7 mm)
29H9229(U.S.-9546, model U21, U22, U27, U2A, U2B, U2H)
Hard Disk Drive (1.08 GB, 12.7 mm)
29H9367(U.S.-9546, model U28, U2J)EMI Sheet
39H7031
Rear Connector Door
29H9185
Base Cover-W/W
29H9181Base Cover-Japan
39H7056
PC Card Door
29H9238
Name Label
66G9228
Thermal Rubber Sheet
82H8966
DIMM Cover
69H8422
DIMM Adapter Card
29H9296
Lower Spacer
29H9194
FDD Blank Bezel
29H9239
FDD Bezel
29H9196
Option Cover
29H9193
AV Cover
29H9189
Modem Cover Lock
39H7028
Modem Cover
39H7030
Blank Cover for EMEA
29H9187
Front IR Assembly
29H9215
Diskette Drive (3-mode)
29H9230
Diskette Drive Removable Strap
29H9237
Lower Shield
29H9202484

IBM Mobile Systems - ThinkPad HMM Volume 3

2
3
4a
4b
5a
5b
5c
5d
6
7
8
9
10a
10b
11
12
13
14a
14b
15
16a
16b
16b
16c
17
18a
18b
18c
18d
19a
19b
20
21a
21b
22
23
24

Index
28

29

30
31
32
33
34
35
36
37
38
39a
39b
39c
39d
40
41
42
43
44

Parts (760C)
CPU Card (90 MHz, Pentium)
29H9198(U.S.-9546, model U21, U22, U2A, U2B)
CPU Card (120 MHz, Pentium)
29H9297(U.S.-9546, model U27, U28, U2H, U2J)
Heat Sink (Pentium 90MHz)
39H7005(U.S.-9546, model U21, U22, U2A, U2B)
Heat Sink (Pentium 120MHz)
39H7006(U.S.-9546, model U27, U28, U2H, U2J)
See Misc. Parts
Internal DAA Assembly
29H9216
DC/DC Card
83H5375
See Misc. Parts
Power Switch Actuator
29H9209
Power Switch Button
29H9191
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222
Speaker (right)
29H9225
Speaker (left)
39H6983
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
29H9221
Backup Battery
29H9506
Palm Rest
29H9219
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9183

AC Adapter (35W)
For Japan
Keyboard Misc. Parts
Misc. Parts(Includes the following:)
Modem Holder
Modem Lever
DSP Holder
Rear IR Lens

85G6701
85G6699
39H7105
29H9234

ThinkPad 760 (9546, 9547)

485

Model 760CD (9546)

486

IBM Mobile Systems - ThinkPad HMM Volume 3

Index
1
2
3
4a
4b
5a
5b
5c
5d
6
7
8
9
10a
10b
11
12a
12b
13
14a
14b
15
16a
16b

16c
17
18a
18b
18c
18d
19a
19b
20
21a
21b
22
23
24
25
26
26a
26b
27

Parts (760CD)
LCD Assembly (12.1 TFT)
Standby Battery
LCD Indicator Assembly CoverLCD Indicator Assembly
Volume Knob
See Keyboard Misc. Parts
Keyboard Foot
Keyboard FPC Bracket
See Keyboard Misc. Parts
TrackPoint III Cap
Keyboard (See Keyboard Section)
Upper Shield Case
Video Card
Volume Connection Cable
Mic Connection Cable
DSP Card
External Diskette Drive Connector
Rear Shield Case
System Board
PC Card SlotEject Button
Battery Pack (Li-ion)
HDD Removable Strap
Hard Disk Drive (1.2 GB, 17 mm)(U.S.-9546, model U11, U13, U1A, U1C)
Hard Disk Drive (720 MB, 12.7 mm)
EMI Sheet
Rear Connector Door
Base Cover-W/W
Base Cover-JapanPC Card DoorName Label
Thermal Rubber Sheet
DIMM Cover
DIMM Adapter Card
Lower Spacer
CD-ROM Blank Bezel
Diskette Drive Bezel
Option Cover
AV Cover
Modem Cover Lock
Modem CoverBlank Cover for EMEA
Front IR Assembly
CD-ROM Drive
Diskette Drive (3 mode)
Diskette Drive Removal Strap
Lower Shield

29H9226
29H9497
39H7036
29H9220
39H7037
39H7038
39H7035
84G6536
29H9213
83H7108
29H921129H921029H9205
29H9203
29H9201
29H9199
39H7019
39H7018
29H9232
29H9236
29H9228
29H9229
39H703129H9186
29H9182
39H7059
29H9238
66G9228
82H8966
69H8422
29H9296
29H9194
29H9289
29H9197
29H9193
29H9190
39H7027
39H7029
29H9188
29H9215
29H9231
29H9230
29H9237
29H9202

ThinkPad 760 (9546, 9547)

487

Index
28

29

30
31
32
33
34
35
36
37
38
39a
39b
39c
39d
40
41
42
43
44

Parts (760CD)
CPU Card (90 MHz, Pentium)
29H9198(U.S.-9546, model U11, U1A)CPU Card (120 MHz, Pentium)
29H9297(U.S.-9546, model U13, U1C)
Heat Sink (Pentium 90MHz)
39H7005(U.S.-9546, model U11, U1A)
Heat Sink (Pentium 120MHz)
39H7006(U.S.-9546, model U13, U1C)
See Misc. Parts
Internal DAA Assembly
29H9216
DC/DC Card
83H5375
See Misc. Parts
Power Switch Actuator
29H9209
Power Switch Button
29H9192
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222
Speaker (right)
29H9225
Speaker (left)
39H6983
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
29H9221
Backup Battery
29H9506
Palm Rest
29H9219For Japan
29H7032
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9184

Conversion Cable, Game Port
Conversion Cable, Game Video
Wall Plug
Microphone
AC Adapter (35W)
For Japan
Keyboard Misc. Parts
Misc. Parts(Includes the following:)
Modem Holder
Modem Lever
DSP Holder
Rear IR Lens
S-Video Bracket

488

29H9269
85G1897
85G2367
66G7871
85G6701
85G6699
39H7105
29H9235

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard Assembly
ArabicBelgianCanadian French
Czech
DanishDutch
FrenchGerman
Greek
Hebrew
Hungary
ItalianJapanese
New World Spanish
NorwegianPortuguese
PolishRussianSlovakSpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9076
29H9074
29H9082
29H9292
29H9073
29H9071
29H9067
29H9065
29H9080
29H9077
29H9291
29H9069
29H9083
29H908129H9075
29H9078
29H9290
29H9084
29H9293
29H9072
29H9070
46H5989
29H9079
29H9064
29H9063

Keyboard Unit
ArabicBelgianCanadian French
Czech
DanishDutch
FrenchGerman
Greek
Hebrew
Hungary
ItalianJapanese
New World Spanish
NorwegianPortuguese
PolishRussianSlovakSpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9408
29H9406
29H9414
39H6978
29H9405
29H9403
29H9399
29H9397
29H9412
29H9409
39H6977
29H9401
29H9415
29H9413
29H9407
29H9410
39H6976
29H9416
39H6979
29H9404
29H9402
46H5990
29H941129H9396
29H9395

ThinkPad 760 (9546, 9547)

489

Model 760E (9546) (CD Nonupgradable
Type)

490

IBM Mobile Systems - ThinkPad HMM Volume 3

Check the Type
There are two types of 760E: Both come with an FDD
built-in, but only one model is upgradable with aninternal CD-ROM drive.
The nonupgradable type 760E model has the
FDD built-in space that is thick enough to install
only an FDD.
The upgradable type 760E model has the FDD
built-in space that is thick enough to install a
CD-ROM.

Check to be sure which type of 760E you areservicing before ordering FRU parts. FRUs for the
CD-ROM upgradable type are listed in the 760E(CDUpgradable Type)/760ED parts list. (See “Model
760E (9546) (CD Upgradable Type) or 760ED” onpage 494.)

ThinkPad 760 (9546, 9547)

491

Index
1
2
3
4a
4b
5a
5b
5c
5d
6
7
8
9
10a
10b
11
12
13
14a
14b
15
16a
16b

21b

Parts (760E CD Nonupgradable Type)LCD Assembly (12.1 TFT)
Standby Battery
LCD Indicator Assembly CoverLCD Indicator Assembly
Volume Knob
See Keyboard Misc. parts
Keyboard Foot
Keyboard FPC Bracket
See Keyboard Misc. parts
TrackPoint III Cap
Keyboard (See Keyboard Section)
Upper Shield Case
Video Card
Volume Connection Cable
Mic Connection Cable
DSP Card
Rear Shield Case
System Board
PC Card SlotEject Button
Battery Pack (Li-ion)
HDD Removable Strap
Hard Disk Drive (810 MB)(U.S.-9546, model U4B)
Hard Disk Drive (1.08 GB)(U.S.-9546, model U4A)
EMI Sheet
Rear Connector Door
Base CoverFor Japan
PC Card DoorName Label
Thermal Rubber Sheet
DIMM Cover
DIMM Adapter Card (8 MB)(U.S.-9546, model U4A)
DIMM Adapter Card (Blank)(U.S.-9546, model U4B)
Lower Spacer
FDD Blank Bezel
FDD Bezel
Option Cover492

IBM Mobile Systems - ThinkPad HMM Volume 3

16c
17
18a
18b
18c
18d
19a
19b

20
21a

29H9226
29H9497
39H7036
29H9220
39H7037
39H7038
39H7035
84G6536
29H9212
39H6226
29H921129H921029H9205
29H9200
11J8234
46H603146H6028
29H9232
29H9236
29H9366
29H9367
39H703129H9185
39H6249
39H6234
29H9238
66G9228
82H8966
69H8422
83H7126
83H7124
29H9194
29H9239
29H9196
29H9193Index
22
23
24
25
26a
26b
27
28

29
30
31
32
33
34
35
36
37
38
39a
39b
39c
39d
40
41
42
43
44

Parts (760E CD Nonupgradable Type)AV Cover
29H9189
Modem Cover Lock
39H7028
Modem Cover
39H7030
Blank Cover for EMEA
29H9187
Front IR Assembly
29H9215
Diskette Drive (3-mode)
29H9230
Diskette Drive (4-mode, for Japan)
29H9372
Diskette Drive Removable Strap
29H9237
Lower Shield
29H9202
CPU Card (120 MHz, Pentium)
11J9672(U.S.-9546, model U4B)
CPU Card (133 MHz, Pentium)
82H8897(U.S.-9546, model U4A)
Heat Sink
39H7006
See Misc. Parts
Internal DAA Assembly
29H9216
DC/DC Card
83H5375
See Misc. Parts
Power Switch Actuator
29H9209
Power Switch Button
29H9191
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222
Speaker (right)
29H9225
Speaker (left)
39H6983
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
29H9221
Backup Battery
29H9506
Palm Rest
29H9219For Japan
39H7032
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9183

AC Adapter (35W)
For U.S/Canada/LA/JapanFor EMEA/AP
Keyboard Misc. Parts
Misc. Parts(Includes the following:)
Modem Holder
Modem Lever
DSP Holder
Rear IR Lens

85G6705
85G6701
39H7105
29H9234

ThinkPad 760 (9546, 9547)

493

Model 760E (9546) (CD UpgradableType) or 760ED

494

IBM Mobile Systems - ThinkPad HMM Volume 3

Check the Model
There are two models each for the 760E (CDupgradable type) and 760ED.


The LCD thick model is the 760E/760ED with the
thickness of 54.3 mm (2.14 inches).
The LCD slim model is the 760E/760ED with the
thickness of 50.7 mm (2.00 inches).

ThinkPad 760 (9546, 9547)

495

Index116c
17760E CD Upgradable Type or 760ED
LCD Assembly(12.1 SVGA TFT thick model)
LCD Assembly(U.S.-9546, model U3A, U3B, U3L)
(12.1 SVGA TFT slim model)
LCD Assembly(12.1 XGA TFT slim model)(U.S.-9546, model U9A, U9B)
Standby Battery
LCD Indicator Assembly CoverLCD Indicator Assembly
Volume Knob
See Keyboard Misc. Parts
Keyboard Foot
Keyboard FPC Bracket
See Keyboard Misc. Parts
TrackPoint III Cap
Keyboard (See Keyboard Section)
Upper Shield Case
Video Card (760E thick model)(U.S.-9546, model U3B)
Video Card (760ED thick model)(U.S.-9546, model U3A, U3L)
Video Card (760ED XGA slim model)(U.S.-9546, model U9A)
Video Card (760E XGA slim model)(U.S.-9546, model U9B)
Video Card (760E SVGA slim model)
Volume Connection Cable(U.S.-9546, model U3A, U3B, U3L)
Volume Connection Cable(760E/760ED XGA slim model)(U.S.-9546, model U9A, U9B)
Mic Connection Cable
DSP Card
FDD Connector Cable
Rear Shield Case
System Board (760E thick model)(U.S.-9546, model U3B)
System Board (760ED thick model)(U.S.-9546, model U3A, U3L)
System Board(760E/760ED XGA slim model)(U.S.-9546, model U9A, U9B)
System Board(760E/760ED SVGA slim model)
PC Card SlotEject Button
Battery Pack (Li-ion)
HDD Removable Strap
Hard Disk Drive (810 MB)
Hard Disk Drive (1.08 GB)
Hard Disk Drive (1.2 GB)(U.S.-9546, model U3A, U3B, U3L)
Hard Disk Drive (1.4 GB)
Hard Disk Drive (2.1 GB)(U.S.-9546, model U9A, U9B)
EMI Sheet
Rear Connector Door

496

IBM Mobile Systems - ThinkPad HMM Volume 3

2
3
4a
4b
5a
5b
5c
5d
6
7
8
9

10a

10b
11
12a
12b
13

14a
14b
15
16a
16b

29H9226

82H8496
82H8486
29H9497
39H7036
29H9220
39H7037
39H7038
39H7035
84G6536
29H9213
39H6228
39H6227
82H8880
82H8881
82H8882
29H9211

82H8965
29H921029H9205
29H9203
29H9201
11J8234
11J7660

11J7659

11J7660
46H603146H6028
29H9232
29H9236
29H9366
29H9367
85G8549
82H8884
82H8489
39H703129H9186

Index
18a

18b
18c
18d
18e
19a
19b

20
21a
21b
22
23
24
25
26a

26b
27
28

29
30
31
32

33
34
35
36
37
38

Part
(760E CD Upgradable Type or 760ED)
Base Cover (760E thick type)
46H6043
For Japan
46H6044
Base Cover (760ED)
39H6248For Japan
39H6233
PC Card Door
29H9238
Name Label
66G9228
Game Port Bracket
82H8895(9546, model U9B only)
Thermal Rubber Sheet
82H8966
DIMM Cover
69H8422
DIMM Adapter Card (8 MB)
83H7126(U.S.-9546, model U3A, U9A, U9B)
DIMM Adapter Card (Blank)
83H7124(U.S.-9546, model U3B, U3L)
Lower Spacer
29H9194
FDD Blank Bezel
29H9289
FDD Bezel
29H9197
Option Cover
29H9193
AV Cover
29H9190
Modem Cover Lock
39H7027
Modem Cover
39H7029
Blank Cover for EMEA
29H9188
Front IR Assembly
29H9215
FDD Drive (3 mode)
29H9230(U.S.-9546, model U3A, U3B, U3L, U9A, U9B)
FDD Drive for Japan (4 mode)
29H9372
In the U.S., either of the CD-ROM 4X drives
below may be used for 9546, model U3A,
U3B, U3L)
Order the FRU number of the drive being replaced.
CD-ROM Drive (4X)
29H9231
CD-ROM Drive (4X)
12J2186
CD-ROM CD-ROM Drive (6X-slim model) 82H8850(U.S.-9546, model U9A)
Diskette Drive Removable Strap
29H9237
Lower Shield
29H9202
CPU Card(120 MHz, Pentium) thick model
11J9672(U.S.-9546, model U3B, U3L)
(133 MHz, Pentium)
82H8897(U.S.-9546, model U3A, U9A)
(150 MHz, Pentium) slim model
82H8877(U.S.-9546, model U9B)
Heat Sink
39H7006
See Misc. Parts
Internal DAA Assembly
29H9216
DC/DC Card
83H5375(U.S.-9546, model U3A, U3B, U3L, U9A)
DC/DC Card
for CPU Card 150 MHz, Pentium
83H5373(U.S.-9546, model U9B)
See Misc. Parts
Power Switch Actuator
29H9209
Power Switch Button
29H9192
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222

ThinkPad 760 (9546, 9547)

497

Index
39a
39b
39c
39d
40
41
42
43
44

Parts
(760E CD Upgradable Type or 760ED)
Speaker (right)
29H9225
Speaker (left)
39H6983
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
29H9221
Backup Battery
29H9506
Palm Rest
29H9219For Japan
39H7032
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9184

AC Adapter (35W, U.S./Canada/
Latin America/Japan)
For EMEA/APFor EMEA/AP Slim 3-Prong
Keyboard Misc. Parts
Misc. Parts (760E thick type)(Includes the following:)
Modem Holder
Modem Lever
Rear IR Lens
S-Video Bracket
Video Bracket
Misc. Parts (760ED)(Includes the following:)
Modem Holder
Modem Lever
DSP Holder
Rear IR Lens
S-Video Bracket

498

85G6705
85G6701
85G6735
39H7105
46H5367

29H9235

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard Assembly
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
New World Spanish
NorwegianPortuguese
Russian
SpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9076
29H9074
29H9082
29H9073
29H9071
29H9067
29H9065
29H9080
29H9077
29H9069
29H9083
29H908129H9075
29H9078
29H9084
29H9072
29H9070
46H5989
29H9079
29H9064
29H9063

Keyboard Unit
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
New World Spanish
NorwegianPortuguese
Russian
SpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9408
29H9406
29H9414
29H9405
29H9403
29H9399
29H9397
29H9412
29H9409
29H9401
29H9415
29H9413
29H9407
29H9410
29H9416
29H9404
29H9402
46H5990
29H941129H9396
29H9395

ThinkPad 760 (9546, 9547)

499

Model 760L (9547)

500

IBM Mobile Systems - ThinkPad HMM Volume 3

Index
1
2
3
4a
4b
5a
5b
5c
5d
6
7
8
9
10a
10b
11
12
13
14a
14b
15
16a
16b
16c
17
18a
18b
18c
18d
19a
19b
20
21a
21b
22
23
24
25
26a
26b
27

Parts (760L)
LCD Assembly (10.4 TFT)
Standby Battery
LCD Indicator Assembly CoverLCD Indicator Assembly
Volume Knob
See Keyboard Misc. Parts
Keyboard Foot
Keyboard FPC Bracket
See Keyboard Misc. Parts
TrackPoint III Cap
Keyboard (See Keyboard Section)
Upper Shield Case
Video Card
Volume Connection Cable
Mic Connection Cable
ESS Card
Rear Shield Case
System Board
PC Card SlotEject Button
Battery Pack (Ni-MH)
HDD Removable Strap
Hard Disk Drive (810 MB, 12.7 mm)
EMI Sheet
Rear Connector Door
Base Cover
PC Card DoorName Label
Thermal Rubber Sheet
DIMM Cover
DIMM Adapter Card
Lower Spacer
FDD Blank Bezel
FDD Bezel
Option Cover
AV Cover
Modem Cover Lock
Modem CoverBlank Cover for EMEA
Front IR Assembly
Diskette Drive (3-mode)
Diskette Drive Removable Strap
Lower Shield

46H5355
29H9497
39H7036
29H9220
39H7037
39H7038
39H7035
84G6536
29H921229H9207
29H921129H9210
46H5353
29H9200
29H9199
39H7019
39H7018
29H9233
29H9236
29H9366
39H703129H9185
46H5358
29H9238
66G9228
82H8966
69H8422
29H9296
29H9194
29H9239
29H9196
29H9193
29H9189
39H7028
39H7030
29H9187
29H9215
29H9230
29H9237
29H9202

ThinkPad 760 (9546, 9547)

501

Index
28

29

30
31
32
33
34
35
36
37
38
39a
39b
39c
39d
40
41
42
43
44

Parts (760L)
CPU Card (90 MHz, Pentium)
29H9198(U.S.-9547, model U01, U0A, U0R)
CPU Card (120 MHz, Pentium)
29H9297
Heat Sink (Pentium 90MHz)
39H7005(U.S.-9547, model U01, U0A, U0R)
Heat Sink (Pentium 120MHz)
39H7006
See Misc. Parts
Modem Bracket Assembly
46H5360
DC/DC Card
83H5375
See Misc. Parts
Power Switch Actuator
29H9209
Power Switch Button
29H9191
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222
Speaker (right)
29H9225
Speaker (left)
39H6983
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
29H9221
Backup Battery
29H9506
Palm Rest
29H9219
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9183

AC Adapter (35W)
For Japan
Keyboard Misc. Parts
Misc. Parts(Includes the following:)
Modem Holder
Modem Lever
Rear IR Lens

502

85G6701
85G6699
39H7039
46H5366

IBM Mobile Systems - ThinkPad HMM Volume 3

Model 760LD (9547)

Misc.

ThinkPad 760 (9546, 9547)

503

Index
1
2
3
4a
4b
5a
5b
5c
5d
6
7
8
9
10a
10b
11
12a
12b
13
14a
14b
15
16a
16b
16c
17
18a
18b
18c
18d
19a
19b
20
21a

27

Parts (760LD)LCD Assembly (10.4 TFT)
Standby Battery
LCD Indicator Assembly CoverLCD Indicator Assembly
Volume Knob
See Keyboard Misc. Parts
Keyboard Foot
Keyboard FPC Bracket
See Keyboard Misc. Parts
TrackPoint III Cap
Keyboard (See Keyboard Section)
Upper Shield Case
Video Card
Volume Connection Cable
Mic Connection Cable
ESS Card
External Diskette Drive Connector
Rear Shield Case
System Board
PC Card SlotEject Button
Battery Pack (Ni-MH)
HDD Removable Strap
Hard Disk Drive (810 MB, 12.7 mm)
EMI Sheet
Rear Connector Door
Base Cover
PC Card DoorName Label
Thermal Rubber Sheet
DIMM Cover
DIMM Adapter Card
Lower Spacer
CD-ROM Blank Bezel
Diskette Drive Bezel
Option Cover
AV Cover
Modem Cover Lock
Modem CoverBlank Cover for EMEA
Front IR Assembly
Diskette Drive (3-Mode)
Diskette Drive(4-Mode Japan)
Diskette Drive Removable Strap
CD-ROM Drive
Lower Shield504

IBM Mobile Systems - ThinkPad HMM Volume 3

21b
22
23
24
25
26a
26a
26b

46H5355
29H9497
39H7036
29H9220
39H7037
39H7038
39H7035
84G6536
29H9213
46H5318
29H921129H9210
46H5353
29H9203
29H9201
29H9199
39H7019
39H7018
46H5365
29H9236
29H9366
39H703129H9186
46H5359
29H9238
66G9228
82H8966
69H8422
29H9296
29H9194
29H9289
29H9197
29H9193
29H9190
39H7027
39H7029
29H9188
29H9215
29H9230
29H9372
29H9237
39H7424
29H9202Index
28

29

30
31
32
33
34
35
36
37
38
39a
39b
39c
39d
40
41
42
43
44

Parts (760LD)
CPU Card (90 MHz, Pentium)
29H9198(U.S.-9547, model U31, U3A, U3R)
CPU Card (120 MHz, Pentium)
29H9297
Heat Sink (Pentium 90MHz)
39H7005(U.S.-9547, model U31, U3A, U3R)
Heat Sink (Pentium 120MHz)
39H7006
See Misc. Parts
Modem Bracket Assembly
46H5360
DC/DC Card
83H5375
See Misc. Parts
Power Switch Actuator
29H9209
Power Switch Button
29H9192
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222
Speaker (right)
29H9225
Speaker (left)
39H6983
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
29H9221
Backup Battery
29H9506
Palm Rest
29H9219For Japan
29H7032
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9184

Wall Plug
Microphone
AC Adapter (35W)
For Japan
Keyboard Misc. Parts
Misc. Parts(Includes the following:)
Modem Holder
Modem Lever
Rear IR Lens

85G2367
66G7871
85G6701
85G6699
39H7039
46H5367

ThinkPad 760 (9546, 9547)

505

Keyboard Assembly
ArabicBelgianCanadian French
Czech
DanishDutch
FrenchGerman
Greek
Hebrew
Hungary
ItalianJapanese
New World Spanish
NorwegianPortuguese
PolishRussianSlovakSpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9076
29H9074
29H9082
29H9292
29H9073
29H9071
29H9067
29H9065
29H9080
29H9077
29H9291
29H9069
29H9083
29H908129H9075
29H9078
29H9290
29H9084
29H9293
29H9072
29H9070
46H5989
29H9079
29H9064
29H9063

Keyboard Unit
ArabicBelgianCanadian French
Czech
DanishDutch
FrenchGerman
Greek
Hebrew
Hungary
ItalianJapanese
New World Spanish
NorwegianPortuguese
PolishRussianSlovakSpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

506

29H9408
29H9406
29H9414
39H6978
29H9405
29H9403
29H9399
29H9397
29H9412
29H9409
39H6977
29H9401
29H9415
29H9413
29H9407
29H9410
39H6976
29H9416
39H6979
29H9404
29H9402
46H5990
29H941129H9396
29H9395

IBM Mobile Systems - ThinkPad HMM Volume 3

Model 760EL or 760ELD (9547)

ThinkPad 760 (9546, 9547)

507

Index
1

2
3
4a
4b
5a
5b
5c
5d
6
7
8
9

10a
10b
11
12a
12b
13

508

Parts (760EL/760ELD)
LCD Assembly(760EL/760ELD, 12.1 TFT thick type)
29H9226(U.S.-9547, model U3F, U48, U4F, U4H, U4R, U4S)LCD Assembly (760EL, 11.3, DSTN)
39H6232(U.S.-9547, model U6F, U6G, U6H, U6R)LCD Assembly(760EL, 12.1 TFT slim type)
82H8496(U.S.-9547, model U4G, U4K, U4T)
Standby Battery
29H9497
LCD Indicator Assembly Cover
39H7036
LCD Indicator Assembly
29H9220
Volume Knob
39H7037
See Keyboard Misc. Parts
Keyboard Foot
39H7038
Keyboard FPC Bracket
39H7035
See Keyboard Misc. Parts
TrackPoint III Cap
84G6536
Keyboard (See Keyboard Section)
Upper Shield Case
29H9213
Video Card
39H6228(U.S.-9547, model U3F, U48, U4F, U4H,
U4R, U4S, U6F, U6G, U6H, U6R)
Video Card
97H5502(U.S.-9547, model U4G, U4K, U4T)
Volume Connection Cable
29H9211
Mic Connection Cable
29H9210ESS Card
46H5353
Rear Shield Case
29H9201
FDD Connector Cable
29H9003
System Board
11J8234(U.S.-9547, model U3F, U48, U4F, U4H,
U4R, U4S, U6F, U6G, U6R)
System Board- SVGA
11J7660(U.S.-9547, model U4G, U4K, U4T)
System Board- DSTN
11J8234(U.S.-9547, model U6H)

IBM Mobile Systems - ThinkPad HMM Volume 3

Index
14a
14b
15
16a
16b

16c
17
18a
18b
18c
18d
18e
19a
19b

20
21a
21b
22
23
24
25
26a

26b
27

Parts (760EL/760ELD)
PC Card Slot
46H6031
Eject Button
46H6028
Battery Pack (Li-ion)
29H9232
HDD Removable Strap
29H9236
Hard Disk Drive (810 MB)
29H9366(U.S.-9547, model U3F, U6F, U6G, U6R)
Hard Disk Drive (1.08 GB)
29H9367(U.S.-9547, model U48, U4F, U4H, U4R, U4S)
Hard Disk Drive (1.2 GB)
29H9228
Hard Disk Drive (1.4 GB)
82H8884(U.S.-9547, model U6H)
Hard Disk Drive (2.1 GB)
82H8489(U.S.-9547, model U4G, U4K, U4T)
EMI Sheet
39H7031
Rear Connector Door
29H9186
Base Cover
46H5599
For Japan
46H5600
PC Card Door
29H9238
Name Label
46H6034
Game Port Bracket
82H8895(U.S.-9547, model U4G, U4K, U4T)
Thermal Rubber Sheet
82H8966
DIMM Cover
69H8422
DIMM Adapter Card (8 MB)
83H7126(U.S.-9547, model U48, U4G, U4H, U4K, U4R, U4T)
DIMM Adapter Card (Blank)
83H7124(U.S.-9547, model U3F, U4F, U4S, U6F,
U6G, U6H, U6R)
Lower Spacer
29H9194
FDD Blank Bezel
29H9289
FDD Bezel
29H9197
Option Cover
29H9193
AV Cover
29H9190
Modem Cover Lock
39H7027
Modem Cover
29H9188
Front IR Assembly
29H9215
Diskette Drive (3-mode)
29H9230(U.S.-9547, model U3F, U48, U4F, U4G, U4K,
U4S, U4T, U6F, U6G, U6H, U6R)
Diskette Drive (4-mode)
29H9372
Note:
In the U.S., either of the CD-ROM 4X drives
below may be used for 9547, model U3F.
Order the FRU number of the drive being replaced.
CD-ROM Drive 4X
29H9231
CD-ROM Drive 4X
02K0490
Diskette Drive Removable Strap
29H9237
Lower Shield
29H9202

ThinkPad 760 (9546, 9547)

509

Index
28

29
30
31
32
33
34
35
36
37
38
39a
39b
39c
39d
40
41
42
43
44

Parts (760EL/760ELD)
CPU Card(760EL/760ELD, 100 MHz, Pentium)
11J9673
Note:
In U.S., this FRU is for9547-U3F, and 9547-U6G.
CPU Card(760EL/760ELD, 120 MHz, Pentium)
12J1574
Note:
In U.S., this FRU is for 9547-U6F, 9547-U4F,
9547-U4S, 9547-U6H, and 9547-U6R.
CPU Card (760EL, 133 MHz, Pentium)
11J9674
Note:
In U.S., this FRU is for 9547-U48, 9547-U4H,
and 9547-U4R.
CPU Card (760EL, 133 MHz, Pentium)
82H8897
Note:
In U.S., this FRU is for 9547-U4G, U4K, and U4T.
Heat Sink
39H7006
See Misc. Parts
Modem Bracket Assembly
46H5360
DC/DC Card
83H5375
See Misc. Parts
Power Switch Actuator
29H9209
Power Switch Button
29H9192
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222
Speaker (right)
29H9225
Speaker (left)
39H6983
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
29H9221
Backup Battery
29H9506
Palm Rest
29H9219For Japan
39H7032
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9184

AC Adapter (35W, Slim U.S., Japan)
For EMEA/APFor EMEA/AP Slim 3-Prong
Keyboard Misc. Parts
Misc. Parts(Includes the following:)
Modem Holder
Modem Lever
DSP Holder
Rear IR Lens

510

85G6705
85G6701
85G6735
39H7105
64H5367

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard Assembly
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
New World Spanish
NorwegianPortuguese
RussianSlovakSpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9076
29H9074
29H9082
29H9073
29H9071
29H9067
29H9065
29H9080
29H9077
29H9069
29H9083
29H908129H9075
29H9078
29H9084
29H9293
29H9072
29H9070
46H5989
29H9079
29H9064
29H9063

Keyboard Unit
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
New World Spanish
NorwegianPortuguese
RussianSlovakSpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9408
29H9406
29H9414
29H9405
29H9403
29H9399
29H9397
29H9412
29H9409
29H9401
29H9415
29H9413
29H9407
29H9410
29H9416
39H6979
29H9404
29H9402
46H5990
29H941129H9396
29H9395

ThinkPad 760 (9546, 9547)

511

Model 760XL (9547)

512

IBM Mobile Systems - ThinkPad HMM Volume 3

Index
1
2
3
4a
4b
5a
5b
5c
5d
6
7
8
9
9a
10a
10b
11
12a
12b
12c
13
14a
14b
15
16a
16b
16c
17
18a
18b
18c
18d
18e
19a
19b
19c
20
21a
21b

Parts (760XL)LCD Assembly (12.1, TFT)
Standby Battery
LCD Indicator Assembly CoverLCD Indicator Assembly
Volume Knob
See Keyboard Misc. Parts
Keyboard Foot
Keyboard FPC Bracket
See Keyboard Misc. Parts
TrackPoint III Cap
Keyboard (See Keyboard Section)
Upper Shield Case
Video Card
Acoustic Spacer
Volume Connection Cable
Mic Connection Cable
ESS Card
External FDD Connector
Rear Shield Case (left)
Rear Shield Case (right)
System Board (SVGA)
PC Card SlotEject Button
Battery Pack (Li-ion)
HDD Removable Strap
Hard Disk Drive (2.1 GB)
EMI Sheet
Rear Connector Door
Base CoverFor Japan
PC Card DoorName LabelGame Port Bracket
Thermal Rubber Sheet
Shield Plate, right
Shield Plate, left
DIMM Adapter Card (8 MB)
Lower Spacer
FDD Blank Bezel
FDD Bezel
Option Cover

46H5725
29H9497
69H8403
46H5889
69H8404
39H7038
39H7035
84G6536
29H9213
46H5771
46H5495
29H921129H9210
46H5775
29H9203
46H5759
46H5758
46H5773
46H5751
46H6028
29H9232
29H9236
82H8489
46H5497
46H5764
46H5756
46H5757
29H9238
66G9228
82H8895
82H8966
46H5760
46H5761
46H5768
29H9194
29H9289
29H9197
29H9193

ThinkPad 760 (9546, 9547)

513

Index
22
23
24
25
26a
26b
27
28
29
30
31a
31b
32
33
34
35
36
37
38
39a
39b
39c
39d
40
41
42
43
44

Parts (760XL)
AV Cover
29H9190
Modem Cover Lock
39H7027
Blank Cover for EMEA
29H9188
Front IR Assembly
29H9215
Diskette Drive (3-mode)
29H9230
Diskette Drive (4-mode, for Japan)
29H9372
Diskette Drive Removable Strap
29H9237
Lower Shield
29H9202
CPU Card (166 MHz, Pentium)
82H8875
Heat Sink
39H7006
See Misc. Parts
Fan
46H5762
Air Duct
46H5763
DC/DC Card
46H5750
See Misc. Parts
Power Switch Actuator
29H9209
Power Switch Button
29H9192
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222
Speaker (right)
46H5777
Speaker (left)
46H5778
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
46H5776
Backup Battery
29H9506
Palm Rest
29H9219For Japan
39H7032
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9184
DIMM Card Holder
AC Adapter (35W)
For U.S/Canada/LA/JapanFor EMEA/AP
Keyboard Misc. Parts
Misc. Parts(Includes the following:)
Modem Holder
Modem Lever
DSP Holder
Rear IR Lens
Screw for FanName Label

514

46H5765
85G6705
85G6735
39H7105
46H5367

46H5766
46H5767

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard Assembly
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
New World Spanish
NorwegianPortuguese
Russian
SpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9076
29H9074
29H9082
29H9073
29H9071
29H9067
29H9065
29H9080
29H9077
29H9069
29H9083
29H908129H9075
29H9078
29H9084
29H9072
29H9070
46H5989
29H9079
29H9064
29H9063

Keyboard Unit
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
Latin Spanish
New World Spanish
NorwegianPortuguese
Russian
SpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

46H5790
46H5788
46H5796
46H5787
46H5785
46H5782
46H5781
46H5794
46H5791
46H5783
46H5797
46H5795
46H5789
46H5792
46H5798
46H5786
46H5784
46H5799
46H5793
46H5780
46H5779

ThinkPad 760 (9546, 9547)

515

Model 760XD (9546)

516

IBM Mobile Systems - ThinkPad HMM Volume 3

Index
1
2
3
4a
4b
5a
5b
5c
5d
6
7
8
9
9a
10a
10b
11
12a
12b
12c
13
14a
14b
15
16a
16b
16c
17
18a
18b
18c
18d
19a
19b
19c
20

Part (760XD)
LCD Assembly(12.1, XGA, TFT)
Standby Battery
LCD Indicator Assembly CoverLCD Indicator Assembly
Volume Knob
See Keyboard Misc. parts
Keyboard Foot
Keyboard FPC Bracket
See Keyboard Misc. parts
TrackPoint III Cap
Keyboard (See Keyboard Section)
Upper Shield Case
Video Card
Acoustic Spacer
Volume Connection Cable
Mic Connection Cable
DSP Card
FDD Connector Cable
Rear Shield Case (left)
Rear Shield Case (right)
System Board (XGA)PC Card SlotEject Button
Battery Pack (Li-ion)
HDD Removable Strap
Hard Disk Drive (3 GB)
EMI Sheet
Rear Connector Door
Base CoverFor Japan
PC Card DoorName Label
Thermal Rubber Sheet
Shield Plate, right
Shield Plate, left
DIMM Adapter Card (8 MB)
Lower Spacer

46H5735
29H9497
46H5736
46H5889
69H8404
39H7038
39H7035
84G6536
29H9213
46H5770
46H5495
82H8965
29H921029H9205
29H9203
46H5759
46H5758
46H5772
46H5751
46H6028
29H9232
29H9236
45H8791
46H5497
46H5764
46H5754
46H5755
29H9238
66G9228
82H8966
46H5760
46H5761
46H5768
29H9194

ThinkPad 760 (9546, 9547)

517

Index
21a
21b
22
23
24
25
26a

26b
27
28
29
30
31
31a
31b
32
33a
33b
34
35
36
37
38
39a
39b
39c
39d
40
41
42
43
44

Index

518

Part (760XD)
FDD Blank Bezel
29H9289
FDD Bezel
29H9197
Option Cover
29H9193
AV Cover
29H9190
Modem Cover Lock
39H7027
Modem Cover
39H7029
Front IR Assembly
29H9215
Diskette Drive (3-mode)
29H9230
Diskette Drive (4-mode)
29H9372
CD-ROM Drive (8x)82H8851
Diskette Drive Removable Strap
29H9237
Lower Shield
29H9202
CPU Card (166 MHz, Pentium)
82H8875
Heat Sink
39H7006
See Misc. Parts
Internal DAA Assembly
12J1571
Fan
46H5762
Air Duct
46H5763
DC/DC Card
46H5750
See Misc. Parts
Cable
29H9206
Power Switch Actuator
29H9209
Power Switch Button
29H9192
Rear IR Assembly
29H9214
Keyboard Base
29H9218
Keyboard Cable
29H9222
Speaker (right)
46H5777
Speaker (left)
46H5778
Speaker Holder (right)
39H7033
Speaker Holder (left)
39H7034
Keyboard Card
46H5776
Backup Battery
29H9506
Palm Rest
29H9219For Japan
39H7032
Keyboard Unit (See Keyboard Unit Section)
Top Cover
29H9184

Part (760XD)
DIMM Card Holder
AC Adapter (35W, Slim U.S., Japan)
For EMEA/APFor EMEA/AP Slim 3-Prong
Keyboard Misc. Parts
Misc. Parts(Includes the following:)
Modem Holder
Modem Lever
DSP Holder
Rear IR Lens
Screw for Fan
Model Label

46H5765
85G6705
85G6701
85G6735
39H7105
29H9235

46H5766
46H5767

IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard Assembly
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
New World Spanish
NorwegianPortuguese
Russian
SpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

29H9076
29H9074
29H9082
29H9073
29H9071
29H9067
29H9065
29H9080
29H9077
29H9069
29H9083
29H908129H9075
29H9078
29H9084
29H9072
29H9070
46H5989
29H9079
29H9064
29H9063

Keyboard Unit
ArabicBelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianJapanese
Latin Spanish
New World Spanish
NorwegianPortuguese
Russian
SpanishSwedish or Finnish
Swiss
Turkish
U.K. English
U.S. English

46H5790
46H5788
46H5796
46H5787
46H5785
46H5782
46H5781
46H5794
46H5791
46H5783
46H5797
46H5795
46H5789
46H5792
46H5798
46H5786
46H5784
46H5799
46H5793
46H5780
46H5779

ThinkPad 760 (9546, 9547)

519

LCD Parts List
LCD Unit, 12.1 SVGA (P/N 29H9226,
ASM P/N 29H9029)

520

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Slide Knob
2 Front Cover
3 Screw Cap, Large
4 Guide (R/L)
5 Hinge Cover (R/L)
7 Rear Cover- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:
6 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:

46H5710

46H5714

46H57178 Interface Cable Assembly- Screw Cap

ThinkPad 760 (9546, 9547)

521

LCD Unit, 12.1 SVGA (P/N 29H9226,
ASM P/N 73H6599)

522

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Screw Cap, Large
2 Front Cover
3 Guide (R/L)
5 Hinge Cover (R/L)
7 Rear Cover
8 Slide Knob
- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:
6 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:

46H5711

46H5714

46H5718

4 Interface Cable Assembly- Screw Cap

ThinkPad 760 (9546, 9547)

523

LCD Unit, 10.4 SVGA (P/N 29H9227)

524

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Front Cover
2 Guide (R/L)
4 Hinge Cover (R/L)
6 Rear Cover
7 Slide Knob
- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:
5 Hinge (R/L)- Screw Cap
Interface Cable AssemblyNote
Includes the following parts:

46H5712

46H5715

46H5719

3 Interface Cable Assembly- Screw Cap

ThinkPad 760 (9546, 9547)

525

LCD Unit, 10.4 VGA (P/N 46H5355)

526

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Front Cover
2 Guide (R/L)
4 Hinge Cover (R/L)
6 Rear Cover
7 Slide Knob
- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:
5 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:

46H5712

46H5715

46H5720

3 Interface Cable Assembly- Screw Cap

ThinkPad 760 (9546, 9547)

527

LCD Unit, 11.3 DSTN (P/N 39H6232)

528

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Front Cover
2 Guide (R/L)
4 Hinge Cover (R/L)
6 Rear Cover
8 Slide Knob
- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:

46H5713

46H5716

5 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:

46H57213 Interface Cable Assembly- Screw Cap
Inverter Card Group
Note
Includes the following parts:

46H5722

7 Inverter Card
- Screw Cap

ThinkPad 760 (9546, 9547)

529

LCD Unit, 12.1 XGA (P/N 82H8486)

530

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Front Cover
2 Guide (R/L)
4 Hinge Cover (R/L)
6 Rear Cover
7 Bracket Spacer
8 Slide Knob
- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:
5 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:

82H8891

82H8892

82H8893

3 Interface Cable Assembly- Screw Cap

ThinkPad 760 (9546, 9547)

531

LCD Unit, 12.1 XGA (P/N 46H5735, ASM
P/N 46H5731)

532

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Front Cover
2 Guide (R/L)
4 Hinge Cover (R/L)
6 Rear Cover
7 Bracket Spacer
8 Slide Knob
- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:
5 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:

46H5736

82H8892

46H5737

3 Interface Cable Assembly- Screw Cap

ThinkPad 760 (9546, 9547)

533

LCD Unit, 12.1 SVGA (P/N 82H8496)

534

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Front Cover
2 Guide (R/L)
4 Hinge Cover (R/L)
6 Rear Cover
7 Bracket Spacer
8 Slide Knob
- Screw Cap (4)- Screw- TapeHinge Group
Note
Includes the following parts:
5 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:

82H8891

82H8892

82H8894

3 Interface Cable Assembly- Screw Cap

ThinkPad 760 (9546, 9547)

535

LCD Unit, 12.1 SVGA (P/N 46H5725)

536

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Screw Cap, Large
2 Front Cover
3 Guide (R/L)
5 Hinge Cover (R/L)
7 Rear Cover
8 Slide Knob
- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:
6 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:

46H5726

46H5714

46H5738

4 Interface Cable Assembly- Screw Cap

ThinkPad 760 (9546, 9547)

537

LCD Unit, 12.1 SVGA (P/N 11J8867,
ASM P/N 11J8855)

538

IBM Mobile Systems - ThinkPad HMM Volume 3

LCD Cover Group
Note
Includes the following parts:
1 Screw Cap, Large
2 Front Cover
3 Guide (R/L)
5 Hinge Cover (R/L)
7 Rear Cover
9 Slide Knob
- Screw Cap- Screw- TapeHinge Group
Note
Includes the following parts:
6 Hinge (R/L)- Screw Cap
Interface Cable Group
Note
Includes the following parts:
4 Interface Cable Assembly- Screw Cap
Inverter Card (8)11J8868

11J8869

11J8870

11J9621

ThinkPad 760 (9546, 9547)

539

Common or Option Parts List
Miscellaneous Parts
Security Parts Kit
29H9294(Includes the following:)
Keyboard Security Plate (760C)
Keyboard Security Plate (760CD)
PC Card Security Plate (760C)
PC Card Security Plate (760CD)
PC Card Security Stopper
Keyboard Security Plate for Dock (760C)
Keyboard Security Plate for Dock (760CD)
Screw Kit
39H7003(Includes the following:)
M2.5 x 6 Screw (5)M2.5 x 4 Screw (10)M2.5 x 8 Screw (5)M2.5 Nut (10)Hex Stud D-Sub (5)Hex Stud Bus (5)M2.5 x 8 Flathead (5)M2 x 4 (5)Screw Cover for Top cover (5)M2.5 x 4 Flathead (5)M2.5 x 5 Flathead (5)Nut M2.5 (5)M2.6 x 5 Deform (5)M2.5 x 14 (5)M2.5 x 4 Thin Head (5)M1.4 x 1.8 Thin Head (5)M2 x 4.3 Thin Head (5)DAA Assembly
Austria
Australia
Belgium
Denmark
FinlandFranceGermany
Malaysia
Netherlands
NorwayNew Zealand
PRC and Hong Kong
SwedenSwitzerland
TaiwanThailand
U.K.

540

59G1041
59G1040
43G3414
59G1042
54F07154525652
59G1056
59G1066
80G3480
59G1044
80G4584
54F0693
54F0717
59G1057
59G1067
59G1064
59G1045

IBM Mobile Systems - ThinkPad HMM Volume 3

PSTN Cable
Austria
Australia
Belgium
Denmark
FinlandFranceGermany
U.S., Thailand, Malaysia, Singapore,and Hong Kong
Netherlands
New Zealand and PRC
NorwaySwedenSwitzerland
U.K.

58G4386
58G4343
58G4346
58G4333
58G4334
58G4335
58G4347
43G3398
58G4340
58G4332
58G4334
58G4336
58G4348
58G4345

ThinkPad 760 (9546, 9547)

541

Options
Notes:
1. When you replace the AC Adapter or the Quick
Charger, use the one for the country you are in, even
if the computer is from a different country.
2. The warranty for the system unit does not apply to all
options.
810MB Hard Disk Drive Assembly
1.08GB Hard Disk Drive Assembly
Audio Cable
Battery Pack (NiMH)
Battery under Spacer
Cable Travel Charger Assembly
Car-Battery Adapter
Conversion Cable (Game Port)
Conversion Cable (Video)
DIMM 8MB
DIMM 16MB
External Battery Under Spacer
External Diskette Drive Box Kit
FDD (4-mode 2.88MB)
FDD External Box Kit
Hard Disk Drive over Pack
HeadsetHDD Overpack
Interface Cable, System - Keyboard
Interface Cable, Keyboard - Keypad
Mini-DIN to Mini-DIN Cable
Microphone
Model LabelName LabelPCMCIA Cartridge
PCMCIA RF Cartridge
Port Replicator
Port Replicator with PCMCIA
PS/2 Miniature Mouse
Quick Charger
Quick Charger Cable
Second HDD Tray
Small Car-Battery Adapter
Travel Charger Assembly
Wall Plug
SO-DIMM 8 MB
SO-DIMM 16 MB
SO-DIMM 32 MB

542

29H9366
29H9367
66G5180
29H9233
29H9369
85G1531
49G1148
29G9629
85G1897
29H9287
29H9288
29H9369
66G5069
29H9372
66G5069
39H7040
85G1529
39H7040
84G2531
84G2532
84G6474
66G7871
46H6034
66G9228
84G1303
84G1304
66G3575
66G3574
95F5723
85G1530
85G1531
29H9295
84G4359
85G1530
85G2367
42H2767
42H2768
42H2769

IBM Mobile Systems - ThinkPad HMM Volume 3

Numeric Keypad
BelgianCanadian French
DanishDutch
FrenchGerman
Greek
Hebrew
Icelandic
ItalianJapanese
Norwegian
SpanishSwedish or Finnish
Swiss (French)
Swiss (German)
Turkish
U.K. English
U.S. English

95F5741
95F5466
95F5467
95F5467
95F6313
95F6314
95F5467
95F5741
95F5467
95F6316
79F6401
95F5467
95F6315
95F5468
95F5711
95F5715
95F5467
95F5741
95F5741

Black Keypad
FrenchGermanItalianNorwegianSwedish
U.K. English
U.S. English

84G6286
84G6280
84G6292
84G6310
84G6304
84G6298
84G2530

Black Keyboard
FrenchGermanItalianNorwegianSwedish
U.K. English
U.S. English

84G6285
84G6279
84G6291
84G6309
84G6303
84G6297
84G2529

Accessories
Keyboard/Mouse Cable

54G0444

Tri-Connector Wrap PlugPC Test Card
Audio Wrap Cable
Screwdriver Kit
ThinkPad Hardware MaintenanceDiskette - Version 1.20

72X8546
35G4703
66G5180
95F3598
78H5227

Tools

ThinkPad 760 (9546, 9547)

543

Power Cords
1

6

2

7

3

8

4

9

5

10

Warning:
Use the power cord certified for your country.

3-Prong1

910Colombia, U.S., Venezuela
Korea
Japan, 2-prong
Hong Kong, Singapore, U.K.
France, Germany, Spain
Italy
Australia, New Zealand
Denmark
IsraelBangladesh, Pakistan, Sri Lanka,
South Africa
Switzerland
Thailand544

IBM Mobile Systems - ThinkPad HMM Volume 3

2
3
4
5
6
7
8

25H2207
25H2207
85G6665
25H2215
25H2209
25H2223
25H2205
25H2211
25H2225
25H2213
25H2221
25H2219

2-Prong Slim
1

2
3
4
5
6
7
8
9
10

Colombia, U.S., Venezuela
Korea
Japan
Hong Kong, Singapore, U.K.
France, Germany, Spain
Italy
Australia, New Zealand
Denmark
IsraelBangladesh, Pakistan, Sri Lanka,
South Africa
Switzerland
Thailand

13H5264
13H5264
13H5273
14F0033
13H5270
13H5270
13H5276
13H5270
13H5270
13H5279
13H5270
13H5264

3-Prong Slim
1

2
3
4
5
6
7
8
9
10

Colombia, U.S., Venezuela
Korea
Japan
Hong Kong, Singapore, U.K.
France, Germany, Spain
Italy
Australia, New Zealand
Denmark
IsraelBangladesh, Pakistan, Sri Lanka,
South Africa
Switzerland
Thailand

76H3516
76H3535
76H3526
76H3524
76H3518
76H3530
76H3514
76H3520
76H3532
76H3522
76H3528
76H3516

ThinkPad 760 (9546, 9547)

545

546

IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad SelectaDock Docking
SystemRead This First . . . . . . . . . . . . . . . . .
General Preparation . . . . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . .
Power Supply . . . . . . . . . . . . . . . .
Checking the Installed Devices List . . . . . .
Printer . . . . . . . . . . . . . . . . . . . . .
External Display . . . . . . . . . . . . . . .
External Keyboard . . . . . . . . . . . . . .
How to Run the Diagnostics. . . . . . . . .
Running Diagnostics. . . . . . . . . . . . . .
Testing the Expansion Unit . . . . . . . . . .
Testing the SCSI Subsystem . . . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . .
Numeric Error Codes . . . . . . . . . . . . .
Diagnostic Error Codes. . . . . . . . . . .
Beep Symptoms . . . . . . . . . . . . . . .
Keyboard-Related Symptoms . . . . . . . . .
Indicator-Related Symptoms. . . . . . . . .
Power-Related Symptoms. . . . . . . . . .
Peripheral-Device-Related Symptoms . . . . .
Other Symptoms . . . . . . . . . . . . . . .
Undetermined Problems . . . . . . . . . . . . .
FRU Removals and Replacements . . . . . . . .
1010 SelectaDock I . . . . . . . . . . . . .
1020 Rear Panel / Option Card Cover (Option)
1030 Upper Cover. . . . . . . . . . . . .
1040 Fan Assembly . . . . . . . . . . . . .
1050 LCD Panel. . . . . . . . . . . . . .
1060 Power Unit
. . . . . . . . . . . . . .
1070 Riser Card/Main Board . . . . . . . . .
Locations . . . . . . . . . . . . . . . . . . . .
SelectaDock Base Model I . . . . . . . . . .
SelectaDock I . . . . . . . . . . . . . . . .
System Status Indicators . . . . . . . . . . .
Parts Listing SelectaDock (3547). . . . . . . .
Options . . . . . . . . . . . . . . . . . . .

548
550
551
552
554
554
555
556
557
559
560
561
565
566
568
571
571
571
572
572
572
573
574
575
575
577
578
578
579
580
583
583
585
587
588
589

 Copyright IBM Corp. 1997

547

Read This First
Before you go to the checkout guide, be sure to read thissection.
Important Notes










Only certified, trained personnel should
service the computer.
Read FRU service procedures before replacing
any FRUs.
Be extremely careful during write operations
such as copying, saving, or formatting.
Drives in the computer that you are servicing
might have been rearranged or the drive startup
sequence might have been altered. If you selectan incorrect drive, data or programs can be
written over.
Use only the correct FRUs. When you replacea FRU, make sure the model of the machine and
FRU part number are correct by referring to theparts listing.
FRUs should not be replaced because of asingle, un-reproducible failure. Single failures
can occur from a variety of reasons that havenothing to do with a hardware defect such as:cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should only
be considered when a recurring problem exists.
If this is suspected, clear the error log and run
the test again. Do not replace any FRUs if log
errors do not reappear.
Be careful not to replace a non-defective FRU.

How to Use Error Messages:

Use the error
codes displayed on the screen to diagnose failures. If
more than one error code is displayed, begin the diagnosis
with the first error code. The cause of the first error code
can result in false error codes being displayed. If no error
code is displayed, see if the error symptom is listed in the“Symptom-to-FRU Index” on page 565.

How to Diagnose Multiple FRUs: When theadapter or device has more than one FRU, the error code
could be caused by either FRU. Before replacing multiple
FRUs, try removing or exchanging each FRU, one by one
in the designated sequence, to see if the symptoms
change.
What to Do First:

The servicer must include thefollowing in the parts exchange form or part return form
that is attached to the returned FRU.
1. Name and phone number of servicer.
2. Date of service.

548

IBM Mobile Systems - ThinkPad HMM Volume 3

3. Date when part failed.
4. Date of purchase.
5. Failure symptoms, error codes appearing on
display, and beep symptoms.
6. Procedure index and page number in which
failing FRU was detected.
7. Failing FRU name and part number.
8. Machine type, model number, and serial number.
9. Customer's name and address.
Before servicing with the computer, determine if thewarranty applies by referring to the following:
Warranty Note
During the warranty period, the customer may be
responsible for repair costs if the computer damage
was caused by misuse, accident, modification,
unsuitable physical or operating environment, or
improper maintenance by the customer. The following
list provides some common items that are not covered
under warranty and some symptoms that might
indicate the system was subjected to stresses beyond
normal use:
The following is not covered under warranty:















LCD panel cracked by applying excessive force
or by being dropped.
Scratched (cosmetic) parts.
Cracked or broken plastic parts, broken latches,broken pins, or broken connectors caused byexcessive force.
Damage caused by liquid spilled into the system.
Damage caused by improperly inserting a
PCMCIA card or installation of an incompatible
card.
Damage caused by foreign material in the FDD
or UltraBay.
Diskette drive damage caused by pressing thediskette drive cover or inserting diskettes withmultiple labels.
Damaged or bent diskette eject button.
CD-ROM drive damage caused by excessive
forces shock, or by being dropped.
Fuses blown by attaching a non-supported
device.
Forgotten computer or hard disk password.
(making computer or hard disk unusable.)ThinkPad SelectaDock Docking System

549

NotesIf the following symptoms are present, they might
indicate damage caused by non-warranted activity:Missing parts might be a symptom of
unauthorized service or modification.
HDD spindles can become noisy if subjected toexcessive force or by being dropped.
I9990303 errors can be caused by exposure tostrong magnetic fields.

General Preparation
In this manual, IBM ThinkPad Dock I means that
SelectaDock Base Model I and SelectaDock I together
when docked as one unit.
1. Check that the SelectaDock Base Model I is correctly
docked (connected) to the SelectaDock I.
2. Check that the computer is correctly docked(connected) to the IBM ThinkPad Dock I.
3. Dock a working computer to the SelectaDock Base
Model I only, and verify there are no problems. If
there are any problems, replace the SelectaDock
Base Model I.
4. If possible, make sure there are no hardware setting
conflicts, such as in interrupt levels, memory
addresses, DMA channels, and I/O addresses.
5. Check that the SCSI ID is set correctly.
6. Test and correct any computer problems before you
test it with IBM ThinkPad Dock I. Use the computer
documentation to resolve any computer problems.
7. Test the computer with the external keyboard,
external display, mouse, and parallel and serial
device connectors. (Use the keyboard/mouseconnector to test the external keyboard and mouse.)
If no problems are found, connect the external
keyboard, mouse, parallel and serial devices to IBM
ThinkPad Dock I, then connect IBM ThinkPad Dock I
to the computer and test it.
8. If external devices are attached to IBM ThinkPad
Dock I, such as an audio amplifier, check the device
by referring to the manual shipped with the device.
9. If the user did not bring the computer withIBM ThinkPad Dock I for service, use a computer thatworks correctly with IBM ThinkPad Dock I.

550

IBM Mobile Systems - ThinkPad HMM Volume 3

Checkout Guide
Use the following procedure as a guide for computer
problems.
Note: The diagnostic tests are intended to test only IBM
products. Non-IBM products, prototype cards, ormodified options can give false errors and invalid
system responses.
Important
When the Problem Determination Procedure in theoperation manual that is supplied with the adapter or
device says “Have the system unit serviced”, thismeans the computer and IBM ThinkPad Dock I.
1. Obtain the failing symptoms in as much detail as
possible.
2. Verify the symptoms by attempting to recreate thefailure by running the diagnostic test or by repeating
the same operation.
Note: To run the diagnostics, refer to “How to Run
the Diagnostics” on page 557.
3. Use the following table with the verified symptom todetermine which page to go to. Search thesymptoms column and find the description that best
matches your symptom; then go to the page shown in
the “Go to” column.
Symptoms (Verified)

Go toPower failure. (Thepower indicator does not
go on or stay on.)“Power Supply” onpage 552.

POST does notcomplete. No
beeps/error code areindicated.

“Symptom-to-FRU
Index” on page 565,
and then use the No
Beep Symptoms table.

POST beeps, but noerror codes are
displayed.

“Symptom-to-FRU
Index” on page 565,
and then use the Beep
Symptoms table.

POST detected an error
and displayed numericerror codes.

“Symptom-to-FRU
Index” on page 565,
and then use the
Numeric Error Codes
table.

The diagnostic test
detected an error anddisplayed an FRU code.

“Diagnostic Error Codes”
on page 568.

ThinkPad SelectaDock Docking System

551

Symptoms (Verified)

Go to

The configuration is not
the same as theinstalled devices.

“Checking the Installed
Devices List” onpage 554.

Other symptoms(such as LCD display
problems)“Symptom-to-FRU
Index” on page 565,
and then use the othersymptom table.

Symptoms cannot berecreated.
(Intermittent problems)

Use the customer
reported symptoms and
go to “Symptom-to-FRU
Index” on page 565.

Power Supply
If the power-on indicator is not on and the power supply
fan is not turning, check the power cord for continuity andcorrect installation.
If the power cord is not the problem, either the power
supply is defective, or another component is defective
causing the power supply to cut off. To verify that thepower supply is operating correctly, do the following:
1. Power-off the computer and disconnect the IBM
ThinkPad Dock I power cord.
2. Remove all internal and external devices, and thecomputer from the IBM ThinkPad Dock I.
3. Undock the IBM ThinkPad Dock I.
4. Remove power supply connector 1 from the riser
card.
5. Install jumpers between pins 1 and 10, and pins 3
and 8 on the main card.
Connector 1
Connector 2

12

552

34

5

IBM Mobile Systems - ThinkPad HMM Volume 3

6. Connect the power cord.
7. Check the voltages at connector 1.
8. Disconnect the power cord.
9. Remove power supply connector 2 from the maincard.
10. Install jumpers between pins 6 and 8, and pins 1 and
17 of connector 2.
11. Reconnect the power cord.
12. Check the power supply voltages at connector 2. If
the voltage is not correct, replace the power supply.
If any voltages are not correct, replace the power supply.
If the problem remains, replace the main card.
Connector 1
1 2 3 4

Connector 2
2

1

22

21

Power Supply Connector 1
Pin

SignalV dc Min.

V dc Max.

1

CVCC

+19

+21

2

Ground––Power Supply Connector 2
Pin

SignalV dc Min.

V dc Max.

1−12 volts

−11.4

−13.2

3

−5 volts

−4.53

−5.5

5

+5 volts

+4.75

+5.25

7

SUB 12

+11.4

+12.6

9

+12 volts

+11.4

+12.6

11 - 13

+3.3

+3.0

+3.6

17 - 19

+5

+4.75

+5.25

ThinkPad SelectaDock Docking System

553

Checking the Installed Devices List
If a device is installed but the icon appears in a gray shaderather than a dark shade on the basic diagnostics screen,
the device is defective. Reseat the device connectors. If
the symptom remains, replace the device or the systemboard. If needed, adjust the contrast control to clearly
distinguish the shades of the icon.
If a device that is not installed appears in a dark shade (forexample, FDD-2 appears in a dark shade when NO
second FDD is installed), do the following:
1. Replace the first device in the configuration, such asan FDD-1, HDD-1, or PCMCIA-1.
2. If the problem remains, replace the system board.
The PCMCIA-1, Parallel, and Serial icons are always
displayed in a dark shade because the icons represent
subsystems of the system board and not the attachment of
the devices.
The FDD-1, HDD-1, or PCMCIA-1 icons represent the first
drive in the system configuration for each type of device.
Similarly, the HDD-3, FDD-2, or PCMCIA-2 icons represent
the second drive, usually attached through a port
replicator or an expansion unit. The HDD-2 icon
represents the hard disk drive in the UltraBay.

Printer
Test the printer by connecting it to the computer before
testing it on the IBM ThinkPad Dock I.
1. Make sure the printer is correctly connected and thepower is turned on.
2. Run the printer self-test.
If the printer self-test does not run correctly, the problem isin the printer. Refer to the printer service manual.
If the printer self-test runs correctly, connect a wrap plugon the parallel connector on the rear of IBM ThinkPad
Dock I and run the advanced diagnostic tests to determine
the failing FRU.
If the advanced diagnostic tests (with the wrap plugconnected) did not detect a failure, replace the printercable.
If the problem is not corrected, do one of the following:




554

If the printer is attached to the parallel connector of
IBM ThinkPad Dock I, replace the main card of IBM
ThinkPad Dock I.
If the printer is attached to the parallel connector on
the adapter, replace the FRUs in the following order
one at a time until the problem is corrected:

IBM Mobile Systems - ThinkPad HMM Volume 3Note: If the replaced parts did not resolve theproblem, put the original parts back in the IBM
ThinkPad Dock I. Do not replace
non-defective parts.
1. Adapter
2. Main Card of IBM ThinkPad Dock I

External Display
If the screen is rolling, replace the external display.
If the problem is not corrected, replace FRUs in thefollowing order one at a time until the problem is corrected:
Note: If the replaced parts did not resolve the problem,
put the original parts back in the IBM ThinkPad
Dock I. Do not replace non-defective parts.


If the external display is attached to the IBM
ThinkPad Dock I:
1. Main Card of IBM ThinkPad Dock I
If the external display is attached to the display
adapter:
1. Display adapter
2. Main card of IBM ThinkPad Dock I
3. Riser card

If the screen is not rolling, do the following to run thedisplay self-test:
1. Power-off IBM ThinkPad Dock I and the external
display.
2. Disconnect the external display signal cable from the
IBM ThinkPad Dock I.
3. Power-on the external display.
4. Turn the contrast control to its maximum position.
5. Turn the brightness control to its center position.
Check for the following conditions:

The screen should be white or light gray, with a black
margin, see the appropriate display manuals for thecorrect self-test condition.



The screen contrast and brightness controls should
vary the intensity of the screen.

ThinkPad SelectaDock Docking System555

If the external display does not meet these specifications,replace the external display.
If the external display meets these specifications, replace
FRUs in the following order one at a time until the problem
is corrected.
Note: If the replaced parts did not resolve theproblem, put the original parts back in the IBM
ThinkPad Dock I. Do not replace
non-defective parts.
If the external display is attached to IBM ThinkPad
Dock I:
1. Main card of IBM ThinkPad Dock I
2. External display
If the external display is attached to the display
adapter:
1. Display adapter
2. Main card of IBM ThinkPad Dock I
3. Riser card
4. External display

External Keyboard
Notes




If a mouse or other pointing device is attached,remove it and see if the error symptom goesaway. If the symptom goes away, the mouse orother pointing device is defective.
The computer keyboard does not work when an
external keyboard is connected.

1. Power-off the computer.
2. Disconnect the keyboard cable from the external
keyboard.
3. Power-on the computer and check the keyboard cableconnector for the following voltages. All voltages
have a ±5% voltage tolerance.
Pin

Voltage (V dc)

1

+5.0

2

Not Used

3

Ground

4

+5.0

5

+5.0

6

Not Used

2 4 5 3 16
4. If all voltages are correct, replace the external
keyboard.
5. If the voltages are not correct, replace the following
FRUs one at a time until the problem is corrected.

556

IBM Mobile Systems - ThinkPad HMM Volume 3Note: If the replaced parts did not resolve theproblem, put the original parts back in the IBM
ThinkPad Dock I. Do not replace
non-defective parts.
a. Keyboard cableb. Main card of IBM ThinkPad Dock I

How to Run the Diagnostics
Use either the TrackPoint III or the cursor move keys tointeract with the tests. The Enter key works the same as
selecting the OK icon to reply OK.
1. Press and hold the F1 key; then power-on thecomputer. Hold the F1 key down until theEasy-Setup screen appears.
2. Select Test and press Enter.
3. Select a device and press Enter to run the test.
4. The test progress screen appears.
5. OK appears when the test ends without any errors.
6. Start the Advanced Diagnostic test by pressing
Ctrl+A on the basic diagnostic menu screen.
7. Select Tool to install the tools.
8. Select a device, press the Spacebar and install thetool. Multiple devices can be selected by repeating
this step.
9.
10.
11.
12.

A √ mark appears beside the selected devices.
Select OK and press Enter if the selection is OK.
Select a device and press Enter to start the tests.
Select Test All to test all devices.
Select Loop Test to run the tests in a repeated loop.

A loop option menu appears in which a device loop or
all-device loop can be selected. Select a device andpress the Spacebar to select a device. Repeat thisstep to select multiple devices. Press Enter to startthe diagnostic loop. If no device is selected, alldevice tests are looped.
13. To exit the loop, keep pressing Ctrl+Pause until thetest exits. A beep sounds to notify that the exit
interrupt is sensed by the test program.

Error Log:

Diagnostic errors are printed on the printerthat is attached to parallel port when the error is detected.
The error is also logged in the system memory.
Use the following procedure to display the errors.
1.
2.
3.
4.
5.

End the test, if it is running.
Press Ctrl+A to select the advanced diagnostic mode.
Press Ctrl+E.
The error log appears.
To exit the screen, select the cancel icon or press
Esc.

The error log is not saved when system power is turned
off.
ThinkPad SelectaDock Docking System

557

How to Run the Keyboard Test:

Use thefollowing procedure to run the keyboard key test.
1. Power-off the computer.
2. Remove the external keyboard, if one is attached.
3. Press and hold F1 key, then power-on the computer.
Hold F1 until the Easy-Setup screen appears.
4. Select Test and press Enter. The basic diagnostic
screen appears.
5. Press Ctrl+A (to go to advanced diagnostic screen).
6. Press Ctrl+K (a keyboard picture appears on thescreen).
7. By pressing a key, the mark appears or disappearson the corresponding key position on the screen.
Repeat this step for any keys that need to be tested.
8. To exit the test, press Esc or select the cancel icon.

PC Test Card LED: The green LED on the PC test
card lights when the PCMCIA test is running. If the LED
does not go on, check that the card is installed correctly byreseating the card. If it still does not light after reseating,
try using another slot for the test. If the LED still does not
go on and the test fails, replace the FRU shown in the
diagnostic error code.
Errors During the POST:

If the POST detects anerror, a three- to eight-digit error code is displayed.

Memory Errors:

If the POST detects a memory error
in the first 640KB of system memory, all of the first bankmemory is de-allocated and the test continues with thesecond 640KB of the second bank memory. If the total
amount of error free memory becomes less than 2MB, a
2XX POST error occurs and the system stops. All of theremaining memory is used as system memory. When the
POST memory test has completed, the usable memory
size is compared with the configuration data and if amismatch is detected, a 2XX error code occurs. The user
can continue with system operation by pressing Esc, andF1 after restart and call for service at a later time.
The memory sizes that are de-allocated because of the
POST process is kept by the hibernation or suspendfunctions. To test this memory, it must be re-configured aspart of the original memory size. The memory
re-configuring is done by turning power off and on.
De-allocation support is done only by the POST for
memory errors. All unrecoverable memory errors that
occur during normal operation cause an interrupt to theoperating system.

558

IBM Mobile Systems - ThinkPad HMM Volume 3

Running Diagnostics
The IBM ThinkPad Dock I Options Diskette helps you
troubleshoot the expansion unit, SCSI adapter, and SCSI
device problems through a series of menus.
Run the diagnostics after you have completed theinstallation of the IBM ThinkPad Dock I and SCSI devices
to verify these devices work correctly. Do the following:
1. Power-off the computer, the IBM ThinkPad Dock I,
and external SCSI devices.
2. Insert the Option Diskette into drive A.
3. Power-on all attached external SCSI devices, thecomputer, then the IBM ThinkPad Dock I.
4. The Logo Screen appears.
5. After a few seconds the Main Menu appears.
6. Select a device for testing and go to the respective
section.

ThinkPad SelectaDock Docking System

559

Testing the Expansion Unit
1. The Test Selection Menu appears when you selectTest Expansion Unit on the Main Menu.

Test Selection Menu

Select one:
1. Run the test one time
2. Run the testEnter

F1=Help

F3=Exit

2. Select an item on the screen and follow the
instructions that appear on the screen.

560

IBM Mobile Systems - ThinkPad HMM Volume 3

Testing the SCSI Subsystem
Note: If a SCSI adapter is installed in an PCI adapter
card slot, remove it before running the SCSI
diagnostic program.
1. When you select Test SCSI Subsystem on the Main
Menu, the diagnostics program checks the system
configuration for SCSI devices and displays thefollowing if no SCSI controller is found.
If a SCSI controller is found, the computer goes on toinitialize the SCSI devices and displays the following.
SCSI Subsystem Diagnostics Utility V2.1

Scanning Target #nEnter

F3=Exit

2. If the initialization fails, the following screen appears.
SCSI Subsystem Diagnostics Utility V2.1

SCSI Initialization Failed

Enter

F3=ExitThinkPad SelectaDock Docking System561

3. If the initialization ends successfully, the following
screen appears. Select an item.
SCSI Subsystem Diagnostics Utility V2.1

Select one
1. Run the tests one time
2.Run the tests continuously

Enter

F3=Exit

4. The SCSI Devices Test Menu appears. Select oneof the devices.
SCSI Subsystem Diagnostics Utility V2.1
SCSI Devises Test Menu
Select one
1.All
2.
(device name)3.
(device name)4.
(device name)5.
(device name)6.
(device name)7.
(device name)8.
(device name)9.
(device name)0.
(device name)

Enter

(ID0)
(ID1)
(ID2)
(ID3)
(ID4)
(ID5)
(ID6)
(ID7)
(ID8)

F3=Exit

The device name may be any of the following:

SCSI Hard DiskSCSI Tape DriveSCSI CD-ROM

SCSI Optical Driveor No Device

The IBM ThinkPad Dock I SCSI controller appears as
ID7 on the screen.
5. If a SCSI device exists and a test media is required totest the SCSI device, the following pop-up menu
appears (shows the case of a SCSI tape drive).

562

IBM Mobile Systems - ThinkPad HMM Volume 3

SCSI Subsystem Diagnostics Utility V2.1
SCSI Devises Test Menu
Select one
1.All
2.
(device name)(ID0)
3.
(device name)(ID1)
4.
(device name)(ID2)
5.
(device name)(ID3)
Insert a scratch TAPE in the drive.
6.
(device name)(ID4)
7.
(device name)(ID5)
8.
(device name)(ID6)
9.
(device name)(ID7)0.
(device name)
(ID8)

Enter

F3=Exit

6. Insert the requested media and wait for approximately
30 seconds until the media is loaded.
7. Press any key. If no SCSI devices are found, a
pop-up menu appears.
SCSI Subsystem Diagnostics Utility V2.1
SCSI Devises Test Menu
Select one
1.All
2.
(device name)3.
(device name)4.
(device name)5.
(devicename)
No Device
Present
6.
(device name)7.
(device name)8.
(device name)9.
(device name)0.
(device name)

Enter

(ID0)
(ID1)
(ID2)
(ID3)
(ID4)
(ID5)
(ID6)
(ID7)
(ID8)

F3=Exit

8. The test begins and the following pop-up menu
appears.
SCSI Subsystem Diagnostics Utility V2.1
SCSI Devises Test Menu
Select one
1.All
2.
(device name)
3. device(device
name)
name
4.
(device name)IDn: Testin preocess5.
(device
name)
6.
7.
8.
9.
0.

Enter

(device name)(device name)(device name)(device name)(device name)

(ID0)
(ID1)
(ID2)
(ID3)
(ID4)
(ID5)
(ID6)
(ID7)
(ID8)

F3=Exit

9. If the test is successful, the following appears.

ThinkPad SelectaDock Docking System

563

SCSI Subsystem Diagnostics Utility V2.1
SCSI Devises Test Menu
Select one
1.All
2.
(device name)3.
(device name)
4. device(device
name)
name
5.
(device name)IDn: Test Passed
6.
(device name)7.
(device name)8.
(device name)9.
(device name)0.
(device name)

Enter

(ID0)
(ID1)
(ID2)
(ID3)
(ID4)
(ID5)
(ID6)
(ID7)
(ID8)

F3=Exit

10. If the test is unsuccessful, the following appears.
SCSI Subsystem Diagnostics Utility V2.1
SCSI Devises Test Menu
Select one
1.All
2.
(device name)3.
(device name)4.
(devicedevice name)name5.
(device name)IDn: Test Failed
6.
(device name)7.
(device name)8.
(device name)9.
(device name)0.
(device name)

Enter

564

(ID0)
(ID1)
(ID2)
(ID3)
(ID4)
(ID5)
(ID6)
(ID7)
(ID8)

F3=Exit

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom-to-FRU Index
The Symptom-to-FRU Index lists error symptoms andpossible causes. The most likely cause is listed first.
Note: Replace the FRUs one at a time in the sequence
shown in the FRUs of the IBM ThinkPad Dock I
Sequence of Action column. If a replaced part did
not resolve the problem, put the original part backin the IBM ThinkPad Dock I. Do not replace
non-defective parts.
Always begin with “General Preparation” on page 550.
This index also can be used to help you decide which
FRUs to have available when servicing the IBM ThinkPad
Dock I.
Numeric error codes show the errors detected in the POST
or system operation. Xs, when included in the error code,
can be any number.
FRU codes are used for errors detected by diagnostic
tests.
If no error codes are available, use narrative symptoms.
If the symptom is not listed or you cannot correct the
problem using this index, go to “Undetermined Problems”
on page 573.
If you cannot correct the problem using this index, go to“Undetermined Problems” on page 573.
IMPORTANT:
1. Before replacing any SCSI device, verify that there
are no duplicate SCSI ID settings.
2. Make sure that there are no conflicts of hardware
settings, such as, interrupt level, memory address,
DMA channel, and I/O address.
3. If you have both an error message and an incorrect
audio response, diagnose the error message first.
4. If you cannot run the advanced diagnostic tests, but
did receive a POST error message, diagnose the
POST error message.
5. If you did not receive an error message, look for a
description of your error symptoms in the first part ofthis index.
6. Check all power supply voltages before you replace
the main card, riser card, and audio card of the IBM
ThinkPad Dock I. (See “Power Supply” onpage 552.)

ThinkPad SelectaDock Docking System

565

Numeric Error Codes
Symptom/Error

IBM ThinkPad Dock I
FRUs
Sequence of Actions

10X, 11X

1. Adapter in slot (ifused)

101: Interrupt failure.
102: Timer failure.
103: Timer interrupt
failure.
104.: Protected mode
failure.
105: Last 8042
command not
accepted.
107: NMI test failure.
108: Timer bus test
failure.
109: Low meg-chip
select test.
195(The computer was docked
to the IBM ThinkPad Dock I
while in hibernation mode.)

2. Riser card
3. Main card

1. Do the following
steps.
a. Power-off andundock thesystem.
b. Power-on andshut down thesystem.
c. Power-off anddock the system.

1XX

See the Hardware
Maintenance Manual of
the computer. If the
problem remains, go to“Undetermined Problems”
on page 573.

2XX
201: Memory data
error.
202: Memory line error
00–15.
203: Memory line error
16–23.
205: Memory test
failure on on-board
memory.
221: ROM to RAM
remap error.
3XX

566

1. See the Hardware
Maintenance Manualof the computer.
2. Main card

See “External Keyboard”
on page 556.

IBM Mobile Systems - ThinkPad HMM Volume 3Symptom/Error

IBM ThinkPad Dock I
FRUs
Sequence of Actions

6XX

1. Before changing any
devices, run the
diagnostic test. (Seethe “How to Run the
Diagnostics” onpage 557.)
2. FDD external
attachment kit
3. Diskette drive
assembly
4. Riser card

11XX, 12XX

1. Serial devices
2. Communication cable
3. Riser card

17XX

1. Hard disk drive(2.5-inch ThinkPad
hard disk drive)
2. Main card

24XX

1. Main card
2. Riser card

860X

1. Mouse
2. External keyboard
3. Riser card

I9990301, I9990302
I9990305

See the Hardware
Maintenance Manual of
the computer.

Not shown above

1. See the Hardware
Maintenance Manualof the computer.
2. See “Undetermined
Problems” onpage 573.

ThinkPad SelectaDock Docking System

567

Diagnostic Error Codes
If an error is detected, the following appears:
Large X on the left side of the device icon.
Device ID (three digit)
Error code (two digit)
FRU code (four digit)






Start

Restart

1

x

1

1

SystemBoard Memory Display HDD-1 FDD-1 PCMCIA-1 Parallel
DEV 001
FRU 02
ERR 0010

OK

2

1
Serial

DSP

3

CDROM-1 Infrared

2

Audio

HDD-2

2

2

HDD-3 FDD-2 PCMCIA-2 CDROM-2

Exit

The device ID and error code are used to indicate thedetail portion of the FRU which caused the error. If
replacing a FRU does not correct the problem, see thedevice ID or error code from the previous failure. If they
have changed, the cause might be because the new FRU
is detective or that the FRU was incorrectly installed.

Device ID: If an error is detected by the diagnostic
tests, a three digits device ID is displayed. The device ID
indicates suspected device.
Icon

SystemBoard

DeviceID

Suspected Device

001

System Board

003

Keyboard

007

Math Coprocessor

086

Pointing Device

002

Memory050

Display051

Enhanced Video

052

MPEG

017

Hard Disk Drive

Memory

Display

1
HDD-1

568

IBM Mobile Systems - ThinkPad HMM Volume 3

Icon

2

DeviceID

Suspected Device

151

Hard Disk in UltraBay

067

External Hard Disk Drive

006

Diskette Drive

066

External Diskette Drive

080

PCMCIA

088

External PCMCIA

009

Parallel

011,
012

Serial

113

DSP

215

CD-ROM

216

External CD-ROM

103

IR

150

Audio (ESS)

HDD-2

3
HDD-3

1
FDD-1

2
FDD-2

1
PCMCIA-1

2
PCMCIA-2

Parallel

SerialDSP

1
CDROM-1

2
CDROM-2

Infrared

Audio

ThinkPad SelectaDock Docking System

569

FRU Codes:

If an error is detected by the diagnostic
tests, a four-digit FRU code is displayed. The FRU code
indicates two suspected FRUs. Replace the FRU that isindicated by the two leftmost digits first, then replace the
FRU that indicated two rightmost digits. No FRU is
assigned to code 00. If only one FRU is suspected, theother FRU code is filled with zeros. See the reference
page before replacing the FRU.
FRU Code

FRU

10

1. System Board

30

Reserved

32

1. External Keyboard
2. Main Card
3. Riser Card33

1. External Mouse
2. Main Card
3. Riser Card45

External CRT

51

1.
2.
3.
4.

61

1. Reseat the Hard Disk Drive in IBM
ThinkPad Dock I (HDD-3)
2. Hard Disk Drive in IBM ThinkPad Dock I(HDD-3)3. Main Card70

PCMCIA-2 (Replicator)

90

CD-ROM Drive

91

CD-ROM Drive in SelectaDock

Reseat the Diskette Drive (FDD-2)
Diskette Drive (FDD-2)
Main Card
Riser Card

If the problem still remains after replacement of the FRUs,
go to “Undetermined Problems” on page 573.

570

IBM Mobile Systems - ThinkPad HMM Volume 3

Beep Symptoms
Symptom/Error

IBM ThinkPad Dock I
FRUs
Sequence of Actions

Beep sounds continuously.

1. Security feature group
2. Main card

Keyboard-Related Symptoms
Symptom/Error

IBM ThinkPad Dock I
FRUs
Sequence of Actions

One or more keys do notwork on the external
keyboard, but the IBM
ThinkPad Dock I isotherwise functional.

Go to “External
Keyboard” on page 556.

Indicator-Related Symptoms
Symptom/Error

IBM ThinkPad Dock I
FRUs
Sequence of Actions

Power-good light does notturn on, fan does not run,and the computer is not
functional.

See “Undetermined
Problems” on page 573.

Computer is functional andthe fan runs, but the power
on indicator does not turnon.

1. Check the connector
of LCD GroupLCD (IBM ThinkPad Dock I)
for the hard disk drive stayson.

1. 2.5-inch hard disk
drive in the UltraBayof the IBM ThinkPad
Dock I

LCD (IBM ThinkPad Dock I)
for the hard disk drive is notworking, but the IBM
ThinkPad Dock I isfunctional.

1. Check the connector
of LCD Group2. Main Card
3. Go to “Power Supply”
on page 552.

2. LCD Circuit BoardGroup
3. Main card

ThinkPad SelectaDock Docking System

571

Power-Related Symptoms
Symptom/Error

IBM ThinkPad Dock I
FRUs
Sequence of Actions

Although the computer isturned off, the fan of the
IBM ThinkPad Dock I power
supply is running.

The fan is working
correctly. To stop the fan,set the key lock to theexternal left position.( 2 )The power of IBM ThinkPad
Dock I cannot be turned off.

See “Undetermined
Problems” on page 573.

Peripheral-Device-Related Symptoms
Symptom/Error

IBM ThinkPad Dock I
FRUs
Sequence of Actions

External display screenchanges colors.

Go to “External Display”
on page 555.

Other Symptoms
Symptom/Error

IBM ThinkPad Dock I
FRUs
Sequence of Actions

Computer does not work,
the power-on indicator does
not turn on, but the fanruns.

See “Undetermined
Problems” on page 573.

Program-load error during
remote IPL from the fileservicer.

Network Adapter

Intermittent failures.

Do the loop test. (See“How to Run the
Diagnostics” onpage 557.)

The HDD-3 is notrecognized and no error
codes appear on thescreen. (The password of
the HDD-3 is still set.)

1. Remove the harddisk password for theThinkPad hard disk
as follows:

Note: The HDD-3 icon
indicates the
2.5-inch ThinkPad
hard disk drive
installed in IBM
ThinkPad Dock I.

572

a. Install the second
hard disk drive on
the computer.
b. Remove the harddisk password.

IBM Mobile Systems - ThinkPad HMM Volume 3

Undetermined Problems
Use the following procedure when the diagnostic tests do
not identify the failing adapter or device.
Check that all cables, wires, and connectors are connected
so that they do not cause a short circuit. If any problems
are found, reconnect or replace them.
Check the power supply for correct operation (see “Power
Supply” on page 552). If the power supply is operatingcorrectly, return here and continue with the following
procedures.
1. Power-off the computer.
2. Remove or disconnect one at a time the following
adapters or devices from IBM ThinkPad Dock I. (Donot isolate adapters or devices that are known to be
good.)
a. Non-IBM devices.
b. A modem, printer, mouse, external keyboard,
external display, external diskette drive, numeric
keypad, or other external devices.
c. Any adapter.
Note: Removing an adapter or device may
cause configuration errors. Ignore error
code 174.
d. SCSI device.
e. Hard disk drive.
3. Power-on the system and check if the problem haschanged.
4. If the symptom remains, repeat Steps 1 through 3
until you find the failing adapter or device, or until all
adapters or devices have been removed.
5. If all adapters or devices have been removed and the
problem remains, replace the following IBM ThinkPad
Dock I FRUs one at a time.
Note: If a replaced part did not resolve the problem,
put the original part back in the IBM ThinkPad
Dock I. Do not replace non-defective parts.
a. Riser cardb. Main cardc. IBM ThinkPad Dock I audio card
If the problem goes away when you remove an adapter,but replacing the adapter does not correct the problem,
replace the main card of IBM ThinkPad Dock I.

ThinkPad SelectaDock Docking System

573

FRU Removals and Replacements
This section contains information on removals andreplacements, and locations.


The arrows in the removals and replacements show
the direction of movement to remove a field
replaceable unit (FRU), or to turn a screw to release
the FRU. The arrows are marked in numeric order toshow the correct sequence of removal.

When other FRUs must be removed before removing
the failing FRU, they are listed at the top of the page.
Go to the removal procedure for each FRU listed,remove the FRU, and then continue with the removalof the failing FRU.



To replace a FRU, reverse the removal procedureand follow any notes that pertain to replacement.
See “Locations” on page 583 for internal cableconnections and arrangement information.
Safety Notice 8: Translation on page 14

Before removing any FRU, power-off the ThinkPad
Dock I and computer, unplug all power cords fromelectrical outlets, remove the battery pack, and thendisconnect any interconnecting cables.
Warning: The main board, adapters, and circuit boardson the drives are sensitive to, and can be damaged by,electrostatic discharge. Establish personal grounding bytouching a ground point with one hand before touchingthese units.
Note: An electrostatic discharge (ESD) strap must be
used to establish personal grounding.

574

IBM Mobile Systems - ThinkPad HMM Volume 31010 SelectaDock IMake sure the security key is in the unlock position.

31020 Rear Panel / Option Card Cover(Option)Rear Panel:

ThinkPad SelectaDock Docking System

575

Option Card Cover (If installed)

2

1

1

4

3

3

6
7
5
6

576

IBM Mobile Systems - ThinkPad HMM Volume 31030 Upper Cover

SelectaDock Base Model I (1010)
Rear Panel / Option Card Cover (1020)

2

3

1
1

4

5

Inside view

Step

Length (Quantity)

Memo

.1/

M 2.6 x 5 mm (2)

Self
tap,
Black

.2/

M 2.6 x 5 mm (1)Self tap.3/

M 2.6 x 8 mm (3)Black

ThinkPad SelectaDock Docking System577

1040 Fan AssemblySelectaDock Base Model I (1010)
Rear Panel / Option Card Cover (1020)
Upper Cover (1030)

2
1

1

3

Step

Length (Quantity)

Memo

.1/

M 2.6 x 5 mm (3)Self tap.2/

M 2.6 x 5 mm (2)Self tap

1050 LCD Panel

SelectaDock Base Model I (1010)
Rear Panel / Option Card Cover (1020)
Upper Cover (1030)

1

578

IBM Mobile Systems - ThinkPad HMM Volume 31060 Power Unit
SelectaDock Base Model I (1010)
Rear Panel / Option Card Cover (1020)
Upper Cover (1030)
Connector of the LCD Panel (1050)






4
1
3
5
2

Step

Length (Quantity).2/

M 3 x 5 mm (1).3/

M 2.6 x 5 mm (1).4/

M 2.6 x 8 mm (1).5/

M 2.6 x 4 mm (2)

Memo

6

ThinkPad SelectaDock Docking System579

1070 Riser Card/Main Board







SelectaDock Base Model I (1010)
Rear Panel / Option Card Cover (1020)
Upper Cover (1030)
Fan Assembly (1040)
Connector of the LCD panel (1050)
Power Unit (1060)

1
2
3

4

Step

Length (Quantity)

Location.1/

M 2.6 x 5 mm (1)

Main
Board

M 2.6 x 6 mm (2)FDD
connector

M 2.6 x 8 mm (2)HDD
connector.2/

M 2.6 x 8 mm (1).3/

M 2.6 x 3 mm (1).4/

M 2.6 x 8 mm (1)Precision
screw

5
6

580

IBM Mobile Systems - ThinkPad HMM Volume 3

Step

Length (Quantity)

Memo

.5/

M 2 x 4 mm (2)

Flat
head

8
7
a

7

b

Step

Length (Quantity)

Location.7/

a: M 2.6 x 5 mm (1)b: M 2.5 x 3 mm (3)b:Bottomof thebase
cover

Procedure continued on the next page.

ThinkPad SelectaDock Docking System

581

11

9
9

10

Step

Length (Quantity)

Location.9/

M 2.6 x 4 mm (2)Self tap

12582

IBM Mobile Systems - ThinkPad HMM Volume 3

Locations
SelectaDock Base Model I
Front View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/

Security Lock
Lock Indicator
PC Card Lock
Right-Hand Hole
Computer Catch Slit
Computer Lock
Left-Hand HoleEjectorDocking Connector

ThinkPad SelectaDock Docking System583

Rear View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/

Mouse/Pointing Device Connector
Keyboard/Numeric Keypad Connector
Kensington Lock Keyhole
Parallel Connector
Power JackLine-Out Jack
Serial Connector
External Display Connector
External Diskette Drive Connector
Expansion Connector

584

IBM Mobile Systems - ThinkPad HMM Volume 3

SelectaDock I
Front View
.1/
.2/
.3/
.4/
.5/
.6/
.7/
.8/
.9/
.1ð/

PCMCIA Slot
PC Card Lock Slide
SelectaDock Base Model I Lock
UltraBay Connector 1
UltraBay Connector 2
Feature Jumper
Blank Bezel
Status Indicator
Docking Guide
Docking Connector

ThinkPad SelectaDock Docking System

585

Rear View
.1/
.2/
.3/
.4/
.5/
.6/

Power Connector
MIDI/Joystick JackSCSI Connector
Line-Out JackISA Adapter Card Slot
PCI Adapter Card Slot

586

IBM Mobile Systems - ThinkPad HMM Volume 3

System Status Indicators
.1/
.1/
.2/
.3/
.4/
.5/

DockedPower On
Suspend Mode
Diskette Drive In-use
Hard Disk In-use
Attention

ThinkPad SelectaDock Docking System

587

Parts Listing SelectaDock (3547)

1
7

2
3
6

4

5

588

IBM Mobile Systems - ThinkPad HMM Volume 3

1
2
3
4
5
6
7

Upper Cover
Fan ASM
Riser Card ASM
LCD ASM
Base Cover ASM
Main Board ASM
Power Supply Unit
Option Card CoverMiscellaneous Kit(Includes the following:)
ScrewsSpacers
ClampsSelectaDock Base Model I

39H7419
39H7420
39H7421
39H7418
39H7422
39H7417
39H7423
39H743139H7416

Options
Tape Drive Kit

84G1290

Bracket and Bezel
Shelf
Tray Cover

84G1291
84G3631
84G3632

ThinkPad SelectaDock Docking System

589

Power Cords
1

2

3

4

5

6

7

8

9

10

Warning:
Use the power cord certified for your country.

1

9
10

Colombia, U.S., Venezuela
Japan, 2-pin
Japan, 3-pin
Hong Kong, Singapore, U.K.
France, Germany, Spain
Italy
Australia, New Zealand
Denmark
IsraelBangladesh, Pakistan, Sri Lanka,
South Africa
Switzerland
Thailand

590

IBM Mobile Systems - ThinkPad HMM Volume 3

2
3
4
5
6
7
8

13F99596454377
65F003114F0033
13F9979
14F0069
13F9940
13F9997
14F0087
14F0015
14F0051
1838574

Common Devices Checkout
External Diskette Drive Test . . . . . . . . . . .
External Display Self-Test . . . . . . . . . . . .
External Keyboard/Auxiliary Input Device Checkout
Fax/Modem Checkout . . . . . . . . . . . . . .
Printer Checkout. . . . . . . . . . . . . . . .
Port Replicator Checkout. . . . . . . . . . . .
TrackPoint Checkout. . . . . . . . . . . . . .
TV Tuner . . . . . . . . . . . . . . . . . . . .
Identifying Names and Functions . . . . . . .
Using the Front Panel. . . . . . . . . . . .
Troubleshooting . . . . . . . . . . . . . . .

592
592
593
594
596
597
598
599
599
600
604

 Copyright IBM Corp. 1997591

External Diskette Drive Test
Use the following procedure to isolate the diskette problem
to a controller, drive or diskette. A scratch, write-enabled
2HD diskette is required.
1. Select the icon FDD on the TEST MENU. By doing
this, the controller test and the drive read/write test
run. If the controller test detects an error, FRU code
10 appears. In this case, replace the system board.
2. If the controller test run without errors, follow the
instructions on the screen and insert a scratch
diskette.
3. If the drive test detects an error, FRU code 50
appears. If the diskette media are known to be good,
replace the drive or the drive cable.

External Display Self-Test
If the display problem occurs only when using an external
display, use the following instructions to correct the
problem.
Note
Before you replace a display, check the following list
to see if it is connected correctly.






8506 and 8508 displays must be connected to an
Image Adapter/A or an Image-I Adapter/A.
63XX and 85XX systems support either 63XX or
85XX displays.
85XX systems with an XGA-2 adapter support 95XX
displays.
95XX systems support either 63XX, 85XX, or 95XX
displays.
ThinkPad models support either 85XX or 95XX
displays.

If the screen is rolling, replace the display assembly. If
that does not correct the problem, replace FRUs in thefollowing order until the problem goes away:
1.
2.
3.
4.

Video card
Display adapter (any type)
System board
Bus adapter (if used)

If the screen is not rolling, run the display self-test as
follows:
1.
2.
3.
4.
5.

592

Power-off the computer and display.
Disconnect the display signal cable.
Power-on the display.
Set the contrast to its maximum position.
Set the brightness control to the center detent
position.
IBM Mobile Systems - ThinkPad HMM Volume 3

Check for the following conditions:You should be able to vary the screen intensity byadjusting the contrast and brightness controls.
The screen should be white or light gray, with a black
margin (test margin) on the screen.
Note: The location of the test margin varies with thetype of display. The test margin might be on
the top, bottom, or one or both sides.

If you do not see a test margin on the screen, replace thedisplay. If there is a test margin on the screen, replace thesystem board.
Note: On ThinkPad Models 700, 700C, 720C, 720C, do
the following:
1. Video card
2. System board

External Keyboard/Auxiliary Input
Device Checkout
The following auxiliary input devices may be available for
IBM ThinkPad models.
–
–
–






Numeric keypad
Mouse (PS/2 compatible)
External keyboard (with Keyboard/Miniature
Mouse cable)

If you suspect a problem with any of the auxiliary
input devices (listed above), replace the device.
If the problem is not corrected, replace the following
FRUs one at a time to correct the problem.
– Keyboard control card
– System board
If the computer receives an incorrect keyboard
response, remove other external devices, check the
keyboard connections, and recheck the keyboard
responses. If the problem remains, replace thefollowing FRUs one at a time to correct the problem.
– Keyboard– Keyboard control card
– System board
If a 00030100 error message appears, power-off thecomputer and the external devices. Then power-on
the computer before you power-on the external
devices.

Common Devices Checkout593

Fax/Modem Checkout001– Power-off the computer.
– Ensure that the modem is installed correctly.
– If the modem never worked in customer mode, ensurethat all drivers are loaded correctly onto the computer.
– Ensure that the communication program is supported on
the computer.
– Ensure that the public switch telephone network (PSTN)
cable and the data access arrangement (DAA) cable, if
installed, are connected correctly.
If you need to correct one of the above conditions, do sonow; then continue.
Note: PCMCIA cards can be inserted and removed while
the system is powered on.
– Power-on the system.
– Insert the IBM Data/FAX Modem diskette into the default
diskette drive.
– If you are servicing a High Speed Internal Data/Fax
Modem (Models FC3632 and FC3650), at the DOS
prompt (for example, A:\), type IBMDIAG; then press
Enter.
– If you are servicing a PCMCIA Data/FAX Modem(Models FC3634 and FC3635), at the DOS prompt (forexample, A:\), type ESTDIAG; then press Enter.
– Follow the instructions on the screen. (If you need help,press F1.)
DID THE DIAGNOSTIC TESTS DETECT AN ERROR?
Yes No002
The diagnostic tests have completed successfully. If
you suspect a problem, go to Step 004.
003
Go to the Symptom-to-FRU Index for the computer you areservicing.
004– Check the PSTN cable and the DAA cable, if installed,
for continuity.
IS THE CABLE(S) GOOD?
Yes No005
Replace the defective cable(s).
006(Step 006 continues)

594

IBM Mobile Systems - ThinkPad HMM Volume 3006 (continued)– Have the customer transmit a call.
WAS THE CALL TRANSMITTED SUCCESSFULLY?
Yes No007
Go to Step 011.
008
– Have the customer receive an incoming call on themodem.
WAS THE INCOMING CALL RECEIVED?
Yes No009
Go to Step 014.
010
The diagnostic tests have completed successfully. If you
still suspect a problem that is not software related, replace
the External DAA; then replace the modem.
011– Have the customer transmit a call at a lower speed.
WAS THE CALL TRANSMITTED SUCCESSFULLY?
Yes No012
If installed, replace the external DAA. If you do nothave an external DAA installed, or replacing theexternal DAA does not correct the problem, replace
the modem.
013
Have the telephone line checked.
014– Have the customer receive an incoming call on themodem at a lower speed.
WAS THE INCOMING CALL RECEIVED?
Yes No015
If installed, replace the external DAA. If you do nothave an external DAA installed, or replacing theexternal DAA does not correct the problem, replace
the modem.

Common Devices Checkout

595

(CONTINUED)

016
Have the telephone line checked.

Printer Checkout
1. Make sure the printer is correctly connected and is
powered-on.
2. Run the printer self-test.
If the printer self-test does not run correctly, the problem isin the printer. Refer to the printer service manual.
If the printer self-test runs correctly, do the following.
1. Verify the port settings in configuration.
2. Install a wrap plug on the port (indicated inconfiguration) and run the advanced diagnostic tests.
3. If the advanced diagnostic tests (with the wrap pluginstalled) do not detect a failure, replace the printercable.
If the problem is not corrected, replace the systemboard.

596

IBM Mobile Systems - ThinkPad HMM Volume 3

Port Replicator Checkout
Use the following procedure to isolate a port replicator
problem. A port replicator attaches to the system
expansion connector at the rear of the computer.
1. Power-off the computer.
2. Remove the failing devices from the replicator.
3. Unplug the AC adapter from the replicator, if
attached.
4. Remove the port replicator from the computer.
5. Reconnect the failing device directly to the computer.
(If another device occupies the connector, remove it
first.)
6. Go to General Checkout and follow that procedure.
7. If the advanced diagnostic device test does not findan error, suspect a problem with the port replicator or
the system expansion bus.
8. Power-off the computer and reconnect the port
replicator.
9. Power-on the computer and run the following
advanced diagnostic tests:
 Serial port test with the wrap plug installed on
the replicator.
 Parallel port test with the wrap plug installed on
the replicator.
 PCMCIA-2 test with the PC test card installed.
 FDD-2 (FDD-1 if no drive is installed in thecomputer) drive test on the failing device.
10. If diagnostic errors appear, replace the replicator or
diskette drive attachment unit.
If the problem remains after the replacement, replace
the system board.
11. If power problems appear only when using thereplicator, replace the replicator.
If power shut downs occur intermittently when using
PCMCIA-2 devices via a port replicator, suspect anover-current problem. Some PCMCIA devices use more
power; if the maximum usage of each device occurs
simultaneously, the total current will exceed the limit,
thereby causing a power shut down. Isolate this problem
by removing one of the devices, and use the computerunder the same condition, and see whether a power shut
down occurs. Do this procedure for all devices thendetermine the cause. Customer purchase of the larger AC
adapter (50W, optional) is recommended, if it is not yet inuse.

Common Devices Checkout597

TrackPoint Checkout

If the TrackPoint does not work, check theconfiguration. If the configuration of the TrackPoint is
set to Disabled or Off, change it to Enable or On.
If the problem remains, continue.
Note: TrackPoint automatically compensates toadjust the pointer sensor. This causes thepointer to move slightly on the screen andthen stop. Pointer movement might occur
when a slight, steady pressure is applied to
the TrackPoint pointer when the computer ispowered-on or running, or when exceeded
temperature range requires re-adjustment.





598

If the cursor floats or moves erratically, power-off anddisconnect the mouse. Power-on the computer. If
the problem goes away, replace the mouse. If the
problem remains, replace the keyboard.
For click button or pointing stick problems:
1. Go to the Easy-Setup screen.
2. Select an item with the pointing stick.
3. Press either left or right click button.
4. Verify that both buttons work correctly.
If the pointing stick or the click button does not work,
do the following.
1. Reseat the keyboard cables.
2. Replace the keyboard.
3. Replace the interposer card
(355x, 360x, 750x, 755x).
4. Replace keyboard control card (720).
5. Replace the system board.

IBM Mobile Systems - ThinkPad HMM Volume 3

TV Tuner
The TV Tuner Pack (hereafter called TV Tuner) is an
option for watching TV programs or videos on the IBM TFT
color notebook computer. The computer changes to TV
reception when the removable diskette drive is replacedwith the TV Tuner.
The TV screen and normal computer display are easily
switched by using the Hot key on the front panel of the TV
Tuner.

Identifying Names and Functions
The following figure and table show the names andfunctions of each part of the TV Tuner.

1

13

2

12
3

11

4
10
7
9

6

5

8

Icons

Functions.1/ Front Panel

Used to change the TV channels,
switch TV mode to computer mode,and operate most functions of the TV
Tuner.

.2/ Headphone
Jack

Connects the headphones.

.3/ Power
Indicator

Shows the TV Tuner is powered on.

.4/ Power
SwitchPowered on and off the TV Tuner.

.5/ Hot Key

Switches between the TV screen andcomputer screen.

.6/ Up Switch

Increases the value such as thechannel number.

.7/ Down Switch

Decreases the value such as thechannel number.

Common Devices Checkout599

IconsFunctions.8/ Function KeyEnters the mode to change the value ofeach function, such as TV channel orcolor contrast. (See “Using the
Function Key” on page 601.).9/ TV/EXT
SwitchSwitches the TV mode or external
video mode.

.1ð/ Volume
KnobControls the speaker volume.

.11/ Audio-In
Jack

Connects the audio-in connector of the
AV cable.

.12/ Video-In
Jack

Connects video-in connector of the AV
cable.

.13/ RF
Connector

Connects the active antenna unit orantenna cable.

Using the Front Panel
The following table shows how to operate all functions of
the TV Tuner with the controls on the front panel.

Key

FunctionPower

Turns on the TV Tuner.
This key is used only
when the computer isturned on.

Hot Key

Switches computer
display and TV screen.

Up

Increases the value ofparameters, Channel
Number, Color, Tint,
Brightness, Contrast,
Auto Tuning Sensitivity,
On-screen Message
Selection.

Down

Decreases the value ofparameters, Channel
Number, Color, Tint,
Brightness, Contrast,
Auto Tuning Sensitivity,
On-screen Message
Selection.

600

IBM Mobile Systems - ThinkPad HMM Volume 3

Key

Function

Function

Selects a function mode
to adjust each function
parameter. (See “Using
the Function Key” onpage 601.)

TV/ExtSwitches the displayed
video source between
the receiving TV
broadcast program andexternal devices such as
VCR, video camera
recorder, laser disk, andso on.

Using the Function Key: Each time you press the
Function key ( ), one of the following messages (called
On-Screen Message) appears at the top left corner of the
LCD.
The changed values are automatically saved when you
return to the “TV Channel” On-Screen message. The
values are not saved when you power-off the TV Tuner
without returning to this message.
Message on LCD

à (xx)
à COL
à TNT
à BRT
à CNT

Parameter
TV Channel
By using
and,you can select thechannels from 2 to 69.
Color Adjustment
By pressing and holdingor, you canchange the color.
TINT Adjustment
By pressing and holdingor, you canchange the tint.
Bright Adjustment
By pressing and holdingor, you canchange the brightness.
Contrast Adjustment
By pressing and holdingor, you canchange the contrast.

Common Devices Checkout

601

Message on LCDà ---Parameter(No function)
Reserved.
Auto Tune Sensitivity
Selection

à LO

LO: Means thesensitivity of the TV
is low. In thismode, the TV
Tuner receives
strong TV signals
only. To set LO,
press.
HI: Means thesensitivity of the TV
is high (factory
default). In thismode, the TV
Tuner receives
weak and strong
TV signals. To set
HI, press
.

à HI

à D3S
à DON

Time On-Screen
Message appears
D3S: On-Screen
Message appears
for 3 seconds. To
set D3S, press.
DON: On-Screen
Message always
appears. To set
DON press

602

IBM Mobile Systems - ThinkPad HMM Volume 3Power-on the TV Tuner: Use the ThinkPad
Features program or PS2.EXE. to power-on the TV Tuner;
then power-on the internal device in the diskette drive
compartment. If power for the internal device is turned off
when the TV Tuner is set up, nothing appears on the LCD
display. Turn on power for the TV Tuner again.


If you are using DOS, do one of the following:– Power-on the computer and type PS2 from thecommand prompt to start the ThinkPad Features
program.
Select Set Power Features from the ThinkPad
Features menu; then put a check mark at
Internal Serial Port (or Diskette Drive
Compartment) under the Power for devices. If
you need help, press F1 to display the help
menu.
– Type PS2 MODEM ON (or PS2 DDC ON) from thecommand prompt; press the Enter key to set thepower ON.
If you are using OS/2* or Microsoft Windows**, do thefollowing:
1. Power-on the computer and start the ThinkPad
Features program.
2. Select the Power icon; then move the pointer toInternal Serial Port (or Diskette Drive
Compartment) under the Power for devices
and click the button to check mark it.
3. Press the OK button.

Common Devices Checkout603

Troubleshooting
The following table shows what to do to solve problems
when the TV Tuner does not work correctly.
Problem

Probable Cause

The TV Tuner
does notoperate.
(No picture orsound)

Computer is not powered on.

Computer is in suspend mode.



Volume control of the TV Tuner orcomputer is not adjusted correctly.

The power for the TV Tuner is not
supplied. (See “Power-on the TV
Tuner” on page 603.)



The wall outlet from the outdoor
antenna is not active.

The video or antenna cable is notconnected correctly.

Antenna elements of the active
antenna unit are not adjusted.

The batteries in the active antenna
unit are not inserted correctly.

The batteries in the active antenna
unit are depleted.



The TV Tuner is not set up
correctly.

You cannot watch TV or videos on
the external display.



LO is set for the auto tune

sensitivity selection. (See page601.)
No color.



The program is not in color.

Snow and noise
only.



Switch the TV/EXT (Pictures are outof shape, or
have double
images.

) button.

For TV:

The channel is not tuned correctly.
Adjust the antenna.

For VCR:


Change the tracking adjustment.

Dotted lines or
stripes.



Usually caused by interference
from neon signs, hair dryers, andso on. Move the computer toavoid the interference.

Picture control
are not saved.



Do not power-off the TV Tuner
when adjusting functions such as
picture control, color, tint,
brightness, or contrast.

Channel number
is always
displayed or is
not displayed.

Select your favorite mode for theon-screen message. (See page 601.)

604

IBM Mobile Systems - ThinkPad HMM Volume 3

Common Parts ListingThis section contains FRUs common to most IBM portable,
laptop, and notebook computers.

External Diskette Drives
5.25-Inch Diskette Drive:
360KB External (4869-001)
360KB External (4869-501)
1.2MB External (4869-002)
1.2MB External (4869-502)
5.25-Inch Drive Adapter
5.25-Inch Drive Adapter/A
5.25-Inch External Diskette Drive Cable(from system board to adapter)
Diskette Drive Bus Adapter

72X6759
72X6768
15X7993
15X7994
72X6757
15F7996
27F4211
72X8524

CD-ROM Drives
Enhanced Internal CD-ROM II Drive(Eject button below slot)
Internal CD-ROM I Drive(Eject button above slot)
Terminator Kit (for 81F7930)
Cleaning Kit (for 81F7930)(Disks, CD Caddy)
Internal CD-ROM II Drive(Eject button below slot)
Terminator Kit (for 92F0084)
Media Kit (for 92F0084)(No cleaning necessary, Test Disk, CD Caddy)
Signal Cable
Power Cable
Remote ID Switch Cable (3510)
Audio Card, Cable, Screws (3510)
CD Caddy
Rail Kit (3510)
Headphones Copyright IBM Corp. 1997

61G1901
81F7930
59F3530
59F3562
92F0084
92F0082
31F4232
34F0043
72X852192F0086
92F0085
22F9419
34F0041
53F3610605

SCSI Adapters, Terminators, Cables
SCSI Adapter/A (without Cache)
SCSI Internal CableSCSI Adapter/A (with Cache)
Terminator, External (for 85F0063)
Terminator, Internal (for 85F0063)
Terminator, Internal (for 85F0002)
SCSI Fast Adapter (16 bit)SCSI External Cable (for 92F0330)
SCSI Internal Cable (for 92F0330)
Terminator, Inline (space permitting)

85F0002
64F412785F0063
33F8464
34F0025
57F2870
92F0330
32G4089
32G0084
92F0412

Rewritable Optical Drives
3.5-Inch Rewritable Optical Drive
Rewritable Optical Cartridge
Rewritable Optical Cartridge (5 Pack)
Drive Mounting Slide (for 92F0167)
Tray with Bezel (for 92F0167)
Objective Lens Cleaner (for 92F0167)
Prism Lens Cleaner (for 92F0167)
3.5-Inch Enhanced Rewritable Optical Drive
Mounting Tray
Mounting Tray/Bezel (Model 3510)

92F0167
38F8647
38F8646
85F002285F002138F8681
38F8682
92F0167
92F0269
92F0268

External Keyboard/Mouse
Keyboard Cable
Mouse
Mouse Ball and Pop-Off Retainer
Mouse Ball and Twist-Off Retainer
Mouse (New Style)
Mouse Retainer Ring
Miniature Mouse

72X8537
61X8923
33F8461
33F8462
33G5420
33G5417
95F5723

Enhanced Keyboards (101/102 Key)Country
ArabicBelgianCanadian French
Cyrillic
DanishDutch
FrenchGerman
Greek
Hebrew
ItalianLatin American Spanish
NorwegianPortuguese
Russian/Cyrillic
SpanishSwedish/Finnish
Swiss
Swiss/French
Swiss/German
Turkish
U.K. English
U.S. English (E/ME/A use only)
U.S. English
Yugoslavian

606

1391490139141413920111393866139140713915111391402139140313932851391408
1393395
13920151391409139141013956221391405
139141113914121395881139588213932861391406
139679013920901393669

IBM Mobile Systems - ThinkPad HMM Volume 3

Optional Enhanced Keyboards (101/102 Key)
with PS/2 Style Cable
with AT Style Cable
with 25mm PS/2 Trackballwith 25mm Serial Trackball

59G7980
59G7981
59G7982
59G9757

Keybutton Kits (101/102 Key)
Keybutton Kits (R), Belgian
Keybutton Kits (R), Canadian French
Keybutton Kits (R), Danish
Keybutton Kits (R), Dutch
Keybutton Kits (R), French
Keybutton Kits (R), German
Keybutton Kits (R), Italian
Keybutton Kits (R), Norwegian
Keybutton Kits (R), Portuguese
Keybutton Kits (R), Spanish
Keybutton Kits (R), Spanish / Latin
Keybutton Kits (R), Swedish
Keybutton Kits (R), Swiss / French / German
Keybutton Kits (R), U.K. English
Keybutton Kits, U.S. English

1392033
139203213920261392034
6447047
64470486447049
139202813920296447050
1392035
1392030139203164470466447045

Japanese Keyboard Type 2 (106 Key, DBCS Support)
Japanese Keyboard
Keyboard Cable

94X1110
94X1147

Space-Saving Keyboards (84/85 Key)Country
Canadian French
Spanish/Latin
U.S. English
Cable Assembly, External1396046
1396047
13932901393082

Tools and Miscellaneous
Audio Wrap Cable
Ethernet BNC T-Connector
Ethernet BNC 50-ohm Terminator(2 required)
Grounding Wire Set
Keyboard Key Cap Removal Tool
PC Test Card
Screwdriver Kit
SCSI Terminator(any SCSI device, space permitting)
SCSI Terminator Kit(R-PAC Terminator Modules (3) for 40, 60,
80, 120, and 160MB SCSI Hard Disk Drives)
Wrap Plug Ethernet D-Shell
Wrap Plug, Tri-Connector
Wrap Plug (6157 Tape Attachment Adapter/A)
Wrap Plug (Token-Ring Network Adapter/A)
Plastic Envelope (For Wrap Plug)

66G5180
84F8207
85F0037
38F4684
6110464
33G4703
95F3598
92F014292F0143

85F0036
72X8546417845961658996138013

Common Parts Listing607

Display Power Cords
1

6

2

7

3

8

4

9

5

10

Index Country
1
Colombia, U.S., Venezuela
Colombia, U.S., Venezuela
2Hong Kong, Singapore, U.K.
3
France, Germany, Spain
4
Italy, Chile
5
Australia, New Zealand, New Guinea,
Papua
6
Denmark
7
Israel
8
Bangladesh, Pakistan, South Africa,
Sri Lanka
9
Switzerland
10
ThailandJapan

6952300
62X1045
14F0033
13F9979
14F0069
13F9940
13F9997
14F0087
14F0015
14F0051
1838574
79F2755

Display and Monitor Information
Display and monitor information is separately available
from IBM or an IBM Authorized Dealer.

608

IBM Mobile Systems - ThinkPad HMM Volume 3

Miscellaneous Information
Acronyms, Abbreviations and Terms
Term

Information

ACPA/A
ADP
Alt
ANSI
ARTIC
ASCII

Audio Capture and Playback Adapter
Automatic Data Processing
Alternate
American National Standards Institute
A Real Time Interface Coprocessor
American National Standard Code for Interface
Interchange
Advanced Technology (as in AT Bus)
Audio Video Connection
Basic Input/Output System (Controls System
Resources)
Bits Per Second
Bytes Per Second
The International Telephone and Telegraph
Consultative Committee
Common Command Set
Common Complete Status Block
Configuration Control Sub Board
Compact Disc
Cellular Digital Packet Data
CD Read Only Memory (stores data/audio)
Customer Engineer or Service Representative
Cyclic Redundancy Check
Cathode Ray Tube
Corrective Service Diskette
Color Graphics Adapter (See EGA, VGA, XGA)
Cyclic Redundancy Check
Cathode Ray Tube
Canadian Standards Association
Corrective Service Diskette
Direct Access Storage Device (hard disk, diskette)
Direct Memory Access
Dynamic Random Access Memory
Double Super Twisted NematicEngineering Change Announcement
Error Correction CodeEnhanced Graphics Adapter
Electrostatic Discharge
Enhanced Small Device Interface
Electrically Erasable Programmable Read Only
MemoryEnergy Work Station
Floppy Disk Drive
Field Replaceable Unit (replaceable part)
General Purpose Interface Bus (IEEE 348)
General Services Administration
Hard Disk Drive
HeightIntegrated Drive Electronics
Integrated Circuit
Institute of Electrical and Electronics Engineers
International Electrotechnical Commission
Initial Machine Load

AT
AVC
BIOS
bps
BPS
CCITT
CCS
CCSB
CCSB
CD
CDPD
CD-ROM
CE
CRC
CRT
CSD
CGA
CRC
CRT
CSA
CSD
DASD
DMA
DRAM
DSTN
ECA
ECC
EGA
ESD
ESDI
EEPROM
EWS
FDD
FRU
GPIB
GSA
HDD
Ht
IDE
IC
IEEE
IEC
IML

 Copyright IBM Corp. 1997

609

Term

Information

IPL
IR
ISO
ISDN
LAN
LBA
LTB
LUN
MAP
MCGA

Initial Program Load
InfraredInternational Organization for Standardization
Integrated-Services Digital Network
Local Area Network
Local Block Address
Local Transfer Bus
Logical Unit Number (as in SCSI)
Maintenance Analysis Procedure
Modified Color Graphics Adapter(320 x 200 x 256)
Micro Channel Architecture (bus structure)
Mega hertz (millions of cycles per second)
Musical Instrument Digital Interface
Multimedia
Not Available or Not Applicable
Non-Maskable Interrupt
National Support Center
Non Volatile Random Access Memory
Original Equipment Manufacturer
Personal Computer Memory Card
International Association
Programmable Option SelectPhysical Unit Number (as in SCSI)Redundant Array of Inexpensive Disks(disk array models)Random Access Memory (read/write)
Red Green Blue (is in monitors)
Remote Initial Program Load
Read Only Memory
Sequential Access Storage Device (Tape)
Subsystem Control Block
Small Computer Systems Interface
SCSI Identification Number(assigned device number)
Software Product Description
Service Representative
Static Random Access Memory
Super Video Graphics Array
Super Twisted Nematic
NDD Technical Advisor(See your Marketing Representative)
Telecommunications Device for the Deaf
Thin-Film Transistor
ThinkPad File
Underwriters Laboratory
Video Capture Adapter
Video Electronics Standards Association
Video Graphics Array (640x480x16)
Vital Product Data
Video Random Access Memory
Write Once, Read Many Media
Extended Graphics Array (1024 x 768 x 256)
Luminance/Chrominance Signal(Pertains to Video)

MCA
MHz
MIDI
MM
N/A
NMI
NSC
NVRAM
OEM
PCMCIA
POS
PUN
RAID
RAM
RGB
RIPL
ROM
SASD
SCB
SCSI
SCSI ID
SPD
SR
SRAM
SVGA
STN
T/A
TDD
TFT
TPF
UL
VCA
VESA
VGA
VPD
VRAM
WORM
XGA
Y/C

610

IBM Mobile Systems - ThinkPad HMM Volume 3

Send Us Your Comments!
We want to know your opinion about this manual (partnumber 84H8099). Your input will help us to improve ourpublications.
Please photocopy this survey, complete it, and then fax it
to IBM HMM Survey at 919-543-8167 (USA).

Name

Phone Number
1. Do you like this manual?
____ Yes____ No

2. What would you like to see added, changed, ordeleted in this manual?

3. What is your service experience level?
____ Less than five years____ More than five years

4. Which ThinkPad systems do you service most?

Thanks in advance for your response!

Miscellaneous Information

611

Do You Need Technical References?
We have a wide range of hardware technical referencesthat provide in-depth information about IBM personal
computer products. Our Technical Reference Library
includes information about:Micro Channel, Setup, and Subsystem Control Blockarchitectures

Common interfaces (including microprocessors,
system timers, parallel and serial port controllers,
keyboards and keystrokes, SCSI, DMA, video, and
more)



Specific Personal System/2 systems (including
system board connectors, jumpers, memory
subsystems, I/O subsystems, programming interfaces
and registers, and error codes)

Basic input/output system (BIOS)

Options and adapters

A catalog of our current offerings is available on the World
Wide Web at the following URL:
http://www.pc.ibm.com/desktop/pcdcat.html
Technical information manuals for the latest Commercial
Desktop computers are available on the World Wide Web.
These publications can be viewed online in BookManager
format, or they can be downloaded as PostScript files. Go
to http://www.pc.ibm.com/cdt and then select the“Technical information” topic.

612

IBM Mobile Systems - ThinkPad HMM Volume 3

Problem Determination Tips
Due to the variety of hardware and software combinations
that can be encountered, use the following information toassist you in problem determination. If possible, have thisinformation available when requesting assistance from
Service Support and Engineering functions.









Machine type and model
Processor or hard disk upgrades
Failure symptom– Do diagnostics fail?
– What, when, where, single, or multiple systems?
– Is the failure repeatable?
– Has this configuration ever worked?
– If it has been working, what changes were madeprior to it failing?
– Is this the original reported failure?
Reference Diskette Version– Type and revision level
Hardware configuration– Print out (print screen) configuration from
Reference Diskette currently in use– BIOS level
Operating system software– Type and revision level
Important

To eliminate confusion, identical systems are
considered identical only if they:
1. Are the exact machine type and models
2. Have the same BIOS level
3. Have the same adapters/attachments in thesame locations
4. Have the same address
jumpers/terminators/cabling
5. Have the same software versions and levels
6. Have the same Reference Diskette (version)
7. Have the same configuration options set in thesystem
8. Have the same setup for the operation system
control files
Comparing the configuration and software set-up
between “working and non-working” systems will often
lead to problem resolution.

Miscellaneous Information

613

Phone Numbers, U.S. and Canada
Authorized Dealers or Servicers
NumberInformation

919-517-0001
800-528-7705
800-937-3737
800-426-2472

Bulletin Board Service - PC Company
Bulletin Board Service - TSS Only
IBM Business Partner Education
IBM Customer Engineer TechnicalSupportIBM Dealer Support Center
IBM Direct Desktop Software Sales
IBM Part Number ID and Look Up
IBM PC HelpCenter
IBM Software Defect Support (CSDs)
IBM Software Ordering (Publications)
IBM Supplies Technical Hotline
IBM Warranty Parts Claims Center

800-IBM-DEAL
800-342-6672
303-924-4015
800-426-7763
800-237-5511
800-327-5711
800-426-1484
800-388-7080

U.S. Customers and Helpware Subscribers
NumberInformation

919-517-0001
800-426-8322
800-999-0052
800-237-4824
800-964-8523
800-742-2493
800-447-4700
800-426-2468
800-426-3333
800-IBM-SERV
800-772-2227
800-426-7282
800-426-9402(Ext. 150)
800-241-1620
800-342-6672
800-237-5511
800-284-5933
914-962-0310
800-547-1283

Bulletin Board Service - PC Company
Customer Education Business Unit
Customized Operational Services
EduQuest (Educational Computers)
End User HelpDesk Support
IBM Anti-Virus Services
IBM Authorized Dealer Referrals
IBM Dealer Referral
IBM Information Referral Service
IBM Service
IBM PC HelpCenter and HelpDesk
IBM Technical Manuals
Multimedia Information Center

800-551-2832

614

Multimedia HelpCenter
OS/2 Information Line
OS/2 Support Services
Prodigy
Prodigy User Questions
Technical Coordinator Program
SystemXtra for Personal Systems
LAN Automated Distribution/2
OS/2 Bulletin Board
OS/2 Application Assistance Center
Technical Solutions Magazine

IBM Mobile Systems - ThinkPad HMM Volume 3

IBM Canada Customer and Servicer Support
NumberInformation

800-661-PSMT
905-316-5556

Business Partner Marketing Support
Business Partner Marketing Support Toronto
Business Partner Marketing Support French
Customer Relations
Customer Service Dispatch
Customer Service Parts
Customer Support Center (ISC)
Customer Service Repair Centre
Dealer Support Group (DSG)
HelpClub Registration / IBM Direct
HelpFax
HelpFax - Toronto
HelpPCIBM Certification Administrator
Mail to: 50 Acadia Drive
Markham, Ontario L3R 0B3
IBM Education (A+ Course)
IBM Information Network Support
IBM PC Service Partners
International Warranty Registration
Lexmark Product Information
PartnerLine
Parts Orders, Exchange or Emergency
Parts Regular Orders, Exchange

514-938-6048
800-465-4YOU
800-IBM-SERV
800-263-2769
800-465-2222
416-443-5701
800-505-1855
800-465-7999
800-465-3299
905-316-3299
800-565-3344
905-513-3355

800-661-2131
800-268-3100
800-387-8343
800-487-7426
800-663-7662
800-IBM-9990
800-263-2769
416-443-5808(Fax)
416-443-5755
514-938-3022
905-316-4255
604-664-6464
204-934-2735
800-661-7768
800-565-3344
800-387-8483
800-465-1234
905-316-4148
905-316-4100(Fax)
905-316-4150
905-316-4100(Fax)
905-316-4872
905-316-4100(Fax)
800-661-2131
800-565-3344
416-443-5835(Fax)
905-316-2445
905-316-3515(Fax)
416-443-5778
800-505-1855
800-267-7472

Parts Orders, Inquiries
PC Co Bulletin Board - Montreal
PC Co Bulletin Board - Markham
PC Co Bulletin Board - Vancouver
PC Co Bulletin Board - Winnepeg
PS Marketing Support (PSMT)
PS/1 Warranty Customer Helpline
PS/1 Warranty Service (DOAs)
Publications Ordering
Service Management Support
Service Management Support
Service (Warranty) Manager
Service (Warranty) Manager
Service Quality Programs
Service Quality Programs
Skill Dynamics (Education)
ThinkPad EasyServe
Warranty Claim Fulfillment
Warranty Claim Reimbursement
Warranty Claim Reimbursement
Warranty Claim Parts Inquiry
Warranty Provider Support Hotline
Warranty Service, ThinkPad

Miscellaneous Information

615

Notices
References in this publication to IBM products, programs,
or services do not imply that IBM intends to make theseavailable in all countries in which IBM operates. Anyreference to an IBM product, program, or service is notintended to state or imply that only that IBM product,
program, or service may be used. Subject to IBM’s valid
intellectual property or other legally protectable rights, any
functionally equivalent product, program, or service may be
used instead of the IBM product, program, or service. The
evaluation and verification of operation in conjunction withother products, except those expressly designated by IBM,are the responsibility of the user.
IBM may have patents or pending patent applications
covering subject matter in this document. The furnishingof this document does not give you any license to thesepatents. You can send license inquiries, in writing, to:IBM Director of Licensing
IBM Corporation
500 Columbus Avenue
Thornwood, NY 10594
U.S.A.

Trademarks
The following terms are trademarks or service marks of the
IBM Corporation in the United States and other countries:
AIX
FaxConcentrator
HelpLearn
IBM
Personal System/2
PS/2
SystemXtra
TrackPoint II

616

AT
HelpCenter
HelpFax
Micro Channel
Portmaster
PS/NoteThinkPad
XGA

EduQuest
HelpClub
HelpWare
OS/2
PS/1
Skill Dynamics
Trackpoint

IBM Mobile Systems - ThinkPad HMM Volume 3

The following terms are trademarks or service marks ofother companies as follows:
ActionMedia
DCA
Intel
Intel486
Lexmark
Mylar
Microsoft
MMX
PCMCIAPenDOS
PenPoint
Pentium
PostScript
Prism
Prodigy
QAPlus/PRO
RIPL
VESA

Intel Corporation
Digital Communications Associates, Inc.
Intel Corporation
Intel Corporation
Lexmark International, Inc.
E. I. du Pont de Nemours and Company
Microsoft Corporation
Intel Corporation
Personal Computer Memory
Card International Association
Communications Intelligence Corporation
GO Corporation
Intel Corporation
Adobe Systems Incorporated
Marcom Corporation
Prodigy Services Company
DiagSoft, Inc.
CTA Incorporated
Video Electronics Standards Association

Intel and Pentium are trademarks or registered trademarksof Intel Corporation.
Windows and the Windows NT logo are trademarks orregistered trademarks of Microsoft Corporation. is atrademark of Microsoft Corporation

Miscellaneous Information

617

IBM



Part Number: 84H8099
Printed in U.S.A.

S82G-15ð3-ð5