IBM Mobile Systems
ThinkPad 600/600E (2645)
Hardware Maintenance Manual

June 1999

S10L-9619-03

Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 117.

Fourth Edition (June 1999)
The following paragraph does not apply to the United
Kingdom or any country where such provisions areinconsistent with local law:
INTERNATIONAL BUSINESS MACHINESCORPORATION PROVIDES THIS PUBLICATION “AS IS”
WITHOUT ANY WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITEDTO, THE LIMITED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULARPURPOSE. Some states do not allow disclaimer or
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 or changes to the products or the programs
described in this publication at any time.
It is possible that this publication may contain references
to, or information about, IBM products (machines andprograms), programming, or services that are notannounced in your country. Such references orinformation must not be construed to mean that IBM
intends to announce such IBM products, programming, orservices in your country.
Requests for technical information about IBM products
should be made to your IBM authorized dealer or your IBM
marketing representative.
 Copyright International Business Machines
Corporation 1998, 1999. All rights reserved. Note to
U.S. Government Users – Documentation related torestricted rights – Use, duplication, or disclosure is subject
to restrictions set forth in GSA ADP Schedule Contract
with IBM Corp.

Related Publications
The following product publications are available throughIBM or your IBM Authorized Dealer.
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 (Models 340,
355, 360, 370, 700, 701,
720, 750, 755)

30H2357, S82G-1502-03

Mobile Systems HMM
Volume 3: ThinkPad
Computers (Models 365,
380, 385, 560, 760,
SelectaDock)

84H8099, S82G-1503-05

Mobile Systems HMM
Volume 4: ThinkPad
Computers (Models 380,
385, 560, 760, 765)

05L1271, S05L-1270-01

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

iii

iv

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 380/385 (2635)
Maintenance Diskette

06J0333, S06J-0333

ThinkPad 390/i Series 1700
(2626, 2627) Diagnostic andUtilities Diskettes

10L9942, S10L-9942

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-8540

Contents
General Descriptions. . . . . . . . . . . . . .
Introduction . . . . . . . . . . . . . . . . . . . .
Important Service Information . . . . . . . . . .
Drive and Diskette Compatibility Matrix. . . . .
Safety Notices (Multi-lingual Translations) . . . .
Safety Information . . . . . . . . . . . . . . .
Laser Compliance Statement. . . . . . . . . . .
Read This First . . . . . . . . . . . . . . . . . .
FRU Replacement Notices. . . . . . . . . . . .
LCD Replacement Notice. . . . . . . . . . .
Screw Notices . . . . . . . . . . . . . . . . .
System Board Replacement Notice . . . . . . .
CPU Card Replacement Notice (600E and 770X
Only)
. . . . . . . . . . . . . . . . . . . .
DC-DC Card Replacement Notice (770X Only).
Related Service Information . . . . . . . . . . . .
How to Use Error Messages. . . . . . . . . .
How to Diagnose Multiple FRUs
. . . . . . . .
Reset Switch. . . . . . . . . . . . . . . . .
Running a Low-Level Format . . . . . . . . . .
Service Web Site
. . . . . . . . . . . . . . .
Passwords. . . . . . . . . . . . . . . . . .
Power Management Features. . . . . . . . .
Fn Key Combinations. . . . . . . . . . . . .
Checkout Guide. . . . . . . . . . . . . . . . .
Audio Checkout . . . . . . . . . . . . . . . .
Diskette Drive Checkout. . . . . . . . . . . .
Fan Checkout . . . . . . . . . . . . . . . . .
Indicator LED Checkout. . . . . . . . . . . .
Indicator Panel Check Out . . . . . . . . . . .
Keyboard or Auxiliary Input Device Checkout. .
Memory Checkout . . . . . . . . . . . . . . .
Modem (DSP) Checkout . . . . . . . . . . . .
Port Replicator Checkout . . . . . . . . . . . .
Power Systems Checkout. . . . . . . . . . .
System Board and CPU Card Checkout . . . . .
TrackPoint Checkout . . . . . . . . . . . . . .
Running the Diagnostics . . . . . . . . . . . . . .
PC Card Slots Test
. . . . . . . . . . . . . .
Universal Serial Bus (USB) Test
. . . . . . . .
Displaying the Error Log . . . . . . . . . . . .
Checking the Installed Devices List . . . . . . .
Diagnostic Error Codes. . . . . . . . . . . .

1
1
1
3
3
10
14
17
19
19
19
20
22
22
23
23
23
23
23
24
24
25
29
30
31
31
32
32
32
32
33
34
35
35
38
39
39
41
41
42
42
42

ThinkPad 600. . . . . . . . . . . . . . . . . .
Model-Unique Functions . . . . . . . . . . . . . .
Product Overview. . . . . . . . . . . . . . .
Status Indicators . . . . . . . . . . . . . . . .
Symptom-to-FRU Index . . . . . . . . . . . . . .
Numeric Error Codes . . . . . . . . . . . . . .

47
49
49
51
52
52

 Copyright IBM Corp. 1999v

Beep Symptoms . . . . . . . . . . . . . . . . 57
Audio-Related Symptoms. . . . . . . . . . . 58
CD-ROM-Related Symptoms . . . . . . . . . . 58
Function-Related Symptoms. . . . . . . . . . 60
Indicator-Related Symptoms. . . . . . . . . . 60
Infrared-Related Symptoms . . . . . . . . . . . 61
Keyboard- or TrackPoint-Related Symptoms . . . 61
LCD-Related Symptoms. . . . . . . . . . . . 62
Modem (DSP)-Related Symptoms. . . . . . . 62
PC Card-Related Symptoms. . . . . . . . . . 63
Peripheral-Device-Related Symptoms . . . . . . 63
Power-Related Symptoms. . . . . . . . . . . 64
Other Symptoms . . . . . . . . . . . . . . . . 64
Intermittent Problems. . . . . . . . . . . . . 64
Undetermined Problems. . . . . . . . . . . . 64
FRU Removals and Replacements . . . . . . . . . 66
1010 Backup Battery. . . . . . . . . . . . . 671020 DIMM . . . . . . . . . . . . . . . . . . 68
1030 Battery Pack
. . . . . . . . . . . . . . 69
1040 Hard Disk Drive . . . . . . . . . . . . . 70
1050 UltraslimBay Device . . . . . . . . . . . 71
1060 Keyboard Assembly . . . . . . . . . . . 72
1070 Keyboard . . . . . . . . . . . . . . . . 741080 Speakers . . . . . . . . . . . . . . . . 75
1085 Speaker Cable. . . . . . . . . . . . . 77
1090 LCD Assembly. . . . . . . . . . . . . 78
1100 PC Card (PCMCIA) Slot Assembly. . . . 791110 Modem Card
. . . . . . . . . . . . . . 80
1115 System Kit for RFID . . . . . . . . . . . 811120 Sub Card . . . . . . . . . . . . . . . . 81
1130 CPU Card and Fan. . . . . . . . . . . 83
1140 Guide Rail, Mic. Cable, or TV Out Card . . 851150 System Board . . . . . . . . . . . . . . 87
2010 LCD Front Cover. . . . . . . . . . . . 882020 LCD Hinges and Cables . . . . . . . . . 91
2030 Inverter Card
. . . . . . . . . . . . . . 96
Locations . . . . . . . . . . . . . . . . . . . . . 99
Front View
. . . . . . . . . . . . . . . . . . 99
Bottom View . . . . . . . . . . . . . . . . . 100
Password Pads
. . . . . . . . . . . . . . . 100
Rear View . . . . . . . . . . . . . . . . . . 101
Parts List . . . . . . . . . . . . . . . . . . . . 102
Model 600 . . . . . . . . . . . . . . . . . . 102
LCD FRU (TFT) . . . . . . . . . . . . . . . 105
Model 600E . . . . . . . . . . . . . . . . . 108
LCD FRU (TFT) . . . . . . . . . . . . . . . 111
Keyboard . . . . . . . . . . . . . . . . . . 112
Miscellaneous Parts . . . . . . . . . . . . . 112
Modem Kit
. . . . . . . . . . . . . . . . . 114
Common Parts List
. . . . . . . . . . . . . 115
Notices . . . . . . . . . . . . . . . . . . . . . 117
Trademarks . . . . . . . . . . . . . . . . . 117

viIntroduction

General Descriptions
This chapter includes the descriptions for all ThinkPad
models. Some descriptions might not apply to theparticular computer.

Introduction
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 the symptoms
change. Replace only the FRU that changed thesymptoms.

 Copyright IBM Corp. 1999

1

Introduction
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.

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 morethan one error code is displayed, begin the diagnosis withthe first error code. The cause of the first error code canresult in false error codes being displayed. If no error code
is displayed, see if the error symptom is listed in theSymptom-to-FRU Index for the computer 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 that can bedisplayed as shorter POST messages are highlighted inthis index. Some digits will represent different informationfor 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 iscoming from an internal or an external device.

2

Introduction

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 Mark

5.25-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.

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.

General Descriptions

3

Introduction
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 computer andlistening 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 ciÞ
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.

4

Introduction
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 inappropriée risquede 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 kann schwere
Verbrennungen oder Verätzungen verursachen. Bei
der Entsorgung die örtlichen Bestimmungen fürSondermüll beachten. Beim Ersetzen derBereitschafts- oder Systembatterie nur Batterien desTyps verwenden, der in der Ersatzteilliste aufgeführt
ist. Der Einsatz falscher Batterien kann zu Entzündungoder 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.

General Descriptions

5

Introduction
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 as requiredby local ordinances or regulations. Use only thebattery in the appropriate parts listing when replacing
the battery pack. Use of an incorrect battery can resultin ignition or explosion of the battery.
La batterie contient du nickel. Ne la démontez pas, nel'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 risque deprendre 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 Entzündung oder
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.

6

Introduction
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 Entzündung oder
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.

General Descriptions

7

Introduction
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.

8

Introduction
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.

General Descriptions

9

Introduction
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.

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:






10

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 suddenly or
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.

Introduction















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.

Electrical Safety: Observe the following rules whenworking on electrical equipment.
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 this typeof 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.
General Descriptions

11

Introduction


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.

–

–

–













12

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.
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.

Introduction

Safety Inspection Guide:

The intent of thisinspection guide is to assist you in identifying potentiallyunsafe 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-IBM features 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
hardware

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. Use good
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.

Handling Electrostatic Discharge-Sensitive
Devices: Any computer part containing transistors or
integrated circuits (ICs) should be considered sensitive toelectrostatic discharge (ESD). ESD damage can occur
when there is a difference in charge between objects.
General Descriptions

13

Introduction
Protect against ESD damage by equalizing the charge sothat the machine, the part, the work mat, and the person
handling the part are all at 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 a certified electrician.

Laser Compliance Statement
Some IBM Personal Computer models are equipped fromthe factory with a CD-ROM drive. CD-ROM drives are also
sold separately as options. The CD-ROM drive is a laser
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.

14

Introduction
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 resultin 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 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.
General Descriptions

15

Introduction
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 the beam, 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 deluz, não olhe diretamente por meio de instrumentos óticose evite exposição direta com o feixe de luz.

Rayonnement laser si carter ouvert. Évitez de fixer lefaisceau, de le regarder directement avec des instruments
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 a sugárnyalábbal
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.

16

Read This First

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 the entire FRU removal and replacement
page before replacing any FRU.



Use new nylon-coated screws when you
replace FRUs.



Be extremely careful during such write
operations 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 might beoverwritten.



Replace FRUs only for the correct model.
When you replace a FRU, make sure the modelof the machine and FRU part number are correct
by referring to the FRU parts list.

A FRU 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.

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 that the machine failed
Date of purchase
Failure symptoms, error codes appearing on thedisplay, and beep symptoms
Procedure index and page number in which thefailing FRU was detected
Failing FRU name and part number
Machine type, model number, and serial number
Customer's name and address

General Descriptions

17

Read This First
Before checking problems with the computer, determine
whether the damage is covered under the warranty byreferring to the following:
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 indicatethat the system was subjected to stress beyond
normal use.

The following is not covered under warranty:














LCD panel cracked from the application ofexcessive force or from 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 the improper insertion of a
PC Card or the installation of an incompatible
card.
Damage caused by foreign material in the FDD.
Diskette drive damage caused by the diskette
drive cover being pressed or by the insertion of adiskette with multiple labels.
Damaged or bent diskette eject button.
Fuses blown by attachment of a nonsupported
device.
Forgotten computer password (making thecomputer unusable).

The following symptoms might indicate damage
caused by nonwarranted activities:





18

Missing parts might be a symptom of
unauthorized service or modification.
HDD spindles can become noisy from being
subjected to excessive force or from being
dropped.
I9990303 errors can be caused by exposure tostrong magnetic fields.

FRU Replacement Notices

FRU Replacement Notices
This section contains notices for removal and replacement.
Read this section carefully before replacing any FRU.

LCD Replacement Notice
The TFT LCD for the computer contains over 2,359,296
thin-film transistors (TFTs). A small number of missing,
discolored, or lighted dots (on all the time) is characteristicof TFT LCD technology, but excessive pixel problems cancause viewing concerns. The LCD should be replaced if
the number of missing, discolored, or lighted dots in any
background is 5 or more.

Screw Notices
This computer uses special nylon-coated screws with thefollowing characteristics:They maintain tight connections.
They do not easily come loose, even with shock orvibration.
They need additional force to tighten.
They should be used only once.

Do the following when you service this machine:Keep the screw kit (P/N 05K4841) in your tool bag.
Always use new screws if you are instructed.
Use a torque screwdriver if you have one.

Loose screws can cause a reliability problem. The IBM
ThinkPad computer addresses this problem withnylon-coated screws. Tighten screws as follows:

Plastic to plastic
Turn an additional 90 degrees after the screw head
touches the surface of the plastic part:

Logic card to plastic
Turn an additional 180 degrees after the screw head
touches the surface of the logic card:

General Descriptions

19

FRU Replacement NoticesTorque driver
If you have a torque driver, refer to the “Torque”
column with each step.
Make sure you use the correct screw, and tighten all
screws firmly to the torque shown in the table if you
have a torque screwdriver. Never use a screw thatyou removed. Use a new one. Make sure thescrews are tightened firmly

System Board Replacement Notice
Notice for 770E and 600:

Restoring the System
Unit Serial Number: The EEPROM on the system board
contains vital product data (VPD), such as the system unit
serial number and the system board serial number. You
must restore the system unit serial number to its original
number when the system board is replaced.
To restore the system unit serial number, do the following:
1.
2.
3.
4.

Press and hold F1 and power on the computer.
Hold down F1 until the Easy-Setup menu appears.
Click on Config.
Press Ctrl + N. The System Unit Serial Number
menu appears.
5. Follow the instructions on the menu.
Notes:
1. Do not power-off the computer during the restoration
process.
2. The serial number label is attached to the bottom of
the computer.

Notice for 770X and 600E
Serial Numbers: When the computer was
manufactured, the EEFROM on the system board wasloaded with the serial numbers of the system and all major
components. The EEPROM contains the following serial
numbers:





20

System board serial number
System unit serial number
CPU Card serial number
DC-DC Card serial number

FRU Replacement Notices
You must restore each of those serial numbers except thesystem board serial number to its original number whenreplacing the system board.
To save the original serial numbers, do the following:
1. Boot from DOS, or open an MS-DOS prompt.
2. Insert the ThinkPad Hardware Maintenance Diskette
Version 1.05 into the diskette drive.
3. Enter A:\SERUPDT.EXE at the DOS prompt.
The usage of this tool is displayed.
Note: SERUPDT.EXE is in the ThinkPad Hardware
Maintenance Diskette Version 1.05 or a later
version.
4. Enter SERUPDT R
Each serial numbers is displayed with its device type.
Write down all numbers except the system board
serial number. The device type designations for theeach serial number are as follows:
08: CPU card serial number
20: System unit serial number
38: DC-DC card serial number
40: System board serial number
78–7F: Hard disk drive serial number
Note: You can disregard the hard disk drive serial
number.
To restore the serial numbers, do the following:
1. Boot from DOS, or open a MS-DOS prompt.
2. Enter SERUPDT.EXE at the DOS prompt.
The usage of this tool is displayed.
3. Enter SERUPDT W nn SSSSSSS for each serial number
you saved.
Notes:
a. nn is the device type, and SSSSSSS is the serial
number.
b. The system unit serial number is written in thelabel attached on the bottom of the computer.

UUID: The Universally Unique IDentifier (UUID) is a
128-bit number uniquely assigned to your computer at
production and stored in the EEPROM of your systemboard. The algorithm that generates the unique number isdesigned to provide unique IDs until the year A.D. 3400.
Consequently, no two computers in the world have thesame number.
When you replace the system board, you must set the
UUID on the new system board as follows:
1. Press and hold F1 and power on the computer.
2. Hold down F1 until the Easy-Setup menu appears.
3. Click on Config.
General Descriptions

21

FRU Replacement Notices
4. Press Ctrl + G. The UUID menu appears.
5. Press F5 to generate a new UUID, and press Enterto overwrite it to EEPROM.

CPU Card Replacement Notice (600E
and 770X Only)
You must restore the CPU card serial number to its
original number, when the CPU card is replaced. To saveand restore the CPU card serial number, follow the
instruction in “Serial Numbers” on page 20.

DC-DC Card Replacement Notice (770X
Only)
You must restore the DC-DC card serial number to its
original number, when the DC-DC card is replaced. To
save and restore the DC-DC card serial number, follow the
instruction in “Serial Numbers” on page 20.

22

Related Service Information

Related Service Information
This section provides information about the following:









“How to Use Error Messages”“How to Diagnose Multiple FRUs”“Reset Switch”“Running a Low-Level Format”“Service Web Site” on page 24“Passwords” on page 24“Power Management Features” on page 25“Fn Key Combinations” on page 29

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. Whatever caused
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” section.

How to Diagnose Multiple FRUs
When the adapter or device has more than one FRU, theerror code could be caused by any of them. Before
replacing multiple FRUs, try removing or exchanging each
FRU, one by one in the designated sequence, to see if thesymptoms change.

Reset Switch
The Reset switch resets the system (regardless of the
microcode status) and forces the power off. Use this pushbutton to power off when power is not completely off or the
microcode is in a hung state. See the “Locations” sectionof each model for Reset switch location.

Running a Low-Level Format
Do the following to format the hard disk.
Attention: Make sure the drive address to be formatted iscorrect. This procedure erases all information on the disk.
1. Power off the computer.
2. Hold F1 until the Easy-Setup menu appears.
3. Click on the Test icon. The Basic Diagnostics menu
appears.
4. Press Ctrl+A to enter advanced diagnostic mode.
The ThinkPad FRU Connections window appears.
5. Click on Exit. The Keyboard Test menu appears.
6. Click on Exit again.
7. Press Ctrl+L. The Low-Level Format menu appears.
8. Follow the instructions on the screen
If you are prompted to use the Maintenance Diskette, do
the following:

General Descriptions

23

Related Service Information
1. Insert the ThinkPad Hardware Maintenance Diskette
Version 1.05 or a later version into the diskette drive
and power on the computer.
2. Select Format the hard disk from the main menu.
3. Select the drive from the menu.
4. Follow the instructions on the screen.

Service Web Site
When the latest maintenance diskette and the system
program service diskette are available, they will be posted
on:
Maintenance diskette:
http://www.pc.ibm.com/files/searchfiles.html(search for either MAINTENANCE or MAINT150)
System program service diskette:
http://pccbbs.raleigh.ibm.com/

Passwords
When the power-on password (POP), hard disk password(HDP), and supervisor password (PAP) are used, thefollowing situations may occur:If the POP is the same as the HDP, the POP
prompt appears, but the HDP prompt does notappear.
If the POP is not the same as the HDP, bothprompts appear.
The PAP and the HDP:
If the PAP is used, the HDP is enabled automatically,
but no HDP prompt appears. The HDP is set thesame as the PAP.

The ThinkPad computer that has the bay can support morethan two HDPs.


If the POP is the same as one of the HDPs (HDP-1
or HDP-2), a POP prompt appears. The passwords
are different.
If the POP is not the same as either of the HDPs
(HDP-1 or HDP-2):, both prompts appear.
If the PAP is used, the HDP-1 or the HDP-2 isautomatically enabled, but the HDP prompt does notappear. The HDP-1 and HDP-2 are then set to thesame password as the PAP.

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 by entering the24Related Service Information
power-on password at the supervisor password prompt. In
this case, the Password, Start up, Network, and Initialize
or Asset ID (for some models) icons cannot be selected.
Note: The supervisor password and hard disk password
cannot be replaced if they are forgotten. If thecustomer forgets the supervisor password, thesystem board must be replaced. If the customer
forgets the hard disk password, the hard disk drive
must be replaced.

How to Remove the Power-On Passwords:
If only the power-on password is set, do the following to
remove the power-on password.
1. Power off the computer
2. Remove the DIMM cover on the bottom side of thecomputer.
3. Short-circuit the two password pads or put thejumper.
For the location of the password pads or jumper, see
the “Locations” section for each model.
4. Under the short-circuit condition, power on thecomputer and wait until the POST ends.
After the POST ends, the password prompt does notappear. The power-on password is removed.
5. Reinstall the DIMM cover.
If both the power-on password and the supervisor
password are set, do the following to remove thepasswords:
1. Power on the computer by pressing and holding F1.
2. Enter the supervisor password. The Easy-Setup
menu appears.
3. Click on the Password icon.
4. Click on the Power on icon.
5. Enter the supervisor password and press the Spacebar.
6. Press Enter twice.
7. Click on Exit; then click on Restart.
The power-on password has been removed.

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

General Descriptions

25

Related Service Information

Standby Mode:In standby mode, the following

occurs:The LCD backlight turns off.
The hard disk drive motor stops.
The speaker is muted.

Note: Standby mode in Windows 98 is called suspendmode in Windows 95.
The computer enters standby mode when the Fn + F3
keys are pressed.
The computer exits standby and resumes normal operation
when any key is pressed.

Suspend Mode: The following events occur in
addition to what occurs in standby mode when thecomputer enters suspend mode:The LCD is powered off.
The hard disk drive is powered off.
The CPU stops.

Note: Suspend mode in Windows 95 is called standby
mode in Windows 98.
The following events cause the computer to enter suspendmode:The Fn + F4 keys are pressed.



The LCD cover is closed. If you add a check mark to
the Will not suspend even if LCD is closed box in
the Power Management Properties window, thecomputer will not enter suspend mode even if the
LCD is closed. The LCD only turns off.

The Suspend button is selected in the Fuel-Gauge
program.

The specified time has elapsed from the lastoperation with the keyboard, the TrackPoint, the harddisk drive, the parallel connector, or the diskette drive;or the AC Adapter is plugged in.
In Windows 95, the timer is set by the Suspend
Timer selection in the Power Properties window. In
Windows 98, the timer is set by the System standby
timer selection in the Power Management Properties
window.



The battery indicator blinks orange indicating that thebattery power is low. If you add a check mark to theHibernate when battery becomes low box in thePower Management Properties window, the computer
enters hibernation mode under this condition.
Note: Even if you don't set the low-battery alarm, thecharge indicator will let you know that thebattery is low, and then the ThinkPad willautomatically enter the power-saving mode.
This default low-battery behavior is26

Related Service Information
independent of the operating system, so thecomputer might behave differently from yoursetting if you set the low-battery alarm. The
computer chooses appropriately between yoursetting and the default setting.
Note: The computer cannot enter suspend mode if it is
attached to a docking station.
The following events cause the computer to resume
operation from suspend mode:

The Fn key is pressed.



The LCD cover is opened.

The ring indicator (RI) is signaled by a serial device
or PC Card device.

The power switch is turned on.

The resume timer is set. In Windows 95, you can set
the time with the Resume on timer selection in thePower Management Properties window. In Windows
98, the Scheduled Tasks setting has priority over theResume on timer selection in the PowerManagement Properties window.
Note: The computer does not accept any event
immediately after it enters suspend mode.
Therefore, wait a few seconds before taking
any action to reenter operation mode.

Hibernation Mode
For the Windows NT User
A Windows NT user cannot create a hibernation file ina Windows NT system that uses the NTFS format
system, the Windows NT default format. If you want
to use hibernation mode, you should reinstall Windows
NT with a FAT format system.
In hibernation mode, the following 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 Configuration program, thecomputer can 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.

General Descriptions

27

Related Service Information
The following events cause the computer to enter
hibernation mode:







The Fn + F12 keys are pressed.
The Hibernation button is selected in the Fuel-Gauge
program.
The power switch is turned off when hibernation
mode is set to Hibernate by Power Switch in the
Windows 98 Power Management Properties window.
The timer conditions are satisfied in suspend mode
(for operating systems other than Windows 98).
A critically low battery condition occurs andhibernation mode is set to Hibernate when battery
becomes low.

The computer exits hibernation mode and resumes
operation when the Power switch is pressed. When poweris turned on, the hibernation file in the boot record on thehard disk drive is read and system status is restored fromthe hard disk drive.

28

Related Service Information

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

Turn Fuel-Gauge display on or off.

F3

Turn standby mode on.

F4Turn suspend mode on.

F5

Reserved.

F6

Reserved.

F7

Switch between the LCD and an externalmonitor.

F8

Turn screen expansion on or off. (no symbolon the key)

F9

Reserved.

F10

Reserved.

F11

Switch the power management mode
(High Performance, Automatic, andCustomized)
Note: In Windows 98, only the CPU speed
is changed.

F12Turn hibernation mode on.

Model depending functions
Pg Up

Increase the sound volume or un-mute.

Pg Dn

Decrease the sound volume or un-mute.

Back
space

Mute.

General Descriptions29

Checkout Guide

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 “Running the
Diagnostics” on page 39.
3. Use the following table with the verified symptom todetermine which page to go to. Search the“Symptoms (Verified)” column, and find thedescription that best matches your symptom; then go
to the page shown in the “Go To” column.
Symptoms (Verified)

Go To

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

POST does notcomplete. No beep or
error codes areindicated.

“Symptom-to-FRU
Index” section, and thenuse the No Beep
Symptoms table.

POST beeps, but noerror codes are
displayed.

“Symptom-to-FRU
Index” section, and thenuse the Beep
Symptoms table.

POST detected an error
and displayed numericerror codes.

“Symptom-to-FRU
Index” section, and thenuse the Numeric Error
Codes table.

The diagnostic test
detected an error anddisplayed a FRU code.

“FRU Codes” onpage 44.

The configuration is not
the same as theinstalled devices.

“Checking the Installed
Devices List” onpage 42.

Other symptoms (suchas LCD display
problems).

“Symptom-to-FRU
Index” section, and thenuse the Other
Symptoms table.

30

Checkout Guide
Symptoms (Verified)

Go To

Symptoms cannot be
re-created (intermittent
problems).

Use thecustomer-reported
symptoms and go to“Symptom-to-FRU
Index” section.

Audio Checkout
ISA Audio Check Out
1. Go to the diagnostic menu by selecting Test in the
Easy-Setup menu.
2. Select Audio and run the diagnostic tests.
3. If the test detects a audio problem, replace thesystem board.

PCI Audio Check Out
1. Power off the computer.
2. Insert the ThinkPad Hardware Maintenance Diskette
Version 1.05 or later version into the diskette drive.
3. Power on the computer.
4. Select Test the audio feature from the main menu.
5. If FAIL is displayed on the screen, replace the systemboard.

Diskette Drive Checkout
Do the following to isolate the problem to a controller,
drive, or diskette. A blank, formatted, write-enabled,
nondefective 2HD diskette is required.

FDD-1 represents the diskette drive in the bay. FDD-2
represents an external diskette drive.
Note: Some ThinkPad 600E computers support only one
FDD at a time. The icon of the diskette drive forsuch models is FDD instead of FDD-1 or FDD-2.
Attention: Make sure that the diskette does not have morethan one label attached to it. Multiple labels can cause
damage to the drive or cause the drive to fail.
Do the following to select the test device.
See “Running the Diagnostics” on page 39 for details.
1. Start Easy-Setup.
2. Click on Test.
3. Press Ctrl+A to enter the advanced diagnostic mode.
The ThinkPad FRU Connections window appears.
4. Click on Exit.
The keyboard layout window appears.
5. Click on Exit.
6. Click on FDD-1 (or FDD-2) to start the test.

General Descriptions31

Checkout Guide
7. Insert the blank diskette when instructed and follow
the instructions on the screen.
8. If the controller test detects an error, FRU code 10
appears. Replace the system board.
9. If the controller test runs without errors, the drive
read/write tests start automatically. If a drive test
detects an error, FRU code 50 for FDD-1 or 51 for
FDD-2 appears. If the diskette itself is known to begood, replace the drive.

Fan Checkout
To check the fan, do the following:
1. Start Easy-Setup.
2. Click on Test. The fan will start so you can check the
air turbulence at the louver near the power switch.
3. Press Ctrl+A to enter the advanced diagnostic mode.
The ThinkPad FRU Connections window appears. If
the fan connector is not connected, Fan notconnected message appears.
4. Click on Exit. The keyboard layout window appears.
5. Click on Exit.
6. Click on System Board and press Enter to run thetest. Follow the description on the window. If the test
detects the fan problem, replace it.

Indicator LED Checkout
If an indicator LED problem occurs, do the following:
1. Power off the computer.
2. Power on the computer. All the LEDs should turn on
for a moment after the computer is powered on.
3. Verify that all LEDs turned on. If some of the LEDs
do not turn on, replace the card that the LEDs are on.
If the problem persists, replace the system board.

Indicator Panel Check Out
If an indicator panel problem occurs, do the following:
1. Power off the computer.
2. Power on the computer. All the icons should turn on
for a moment after the computer is powered on.
3. Verify that all icons appear correctly. If some of theicons do not appear, replace the card that theindicator panel is connected to. If the problem
persists, replace the DC-DC card.

Keyboard or 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. If the keyboard cable connection is correct, run

32

Checkout Guide
the keyboard test. See “Running the Diagnostics” onpage 39 for details.
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:
1.
2.
3.
4.

Reseat the keyboard cable.
Replace the keyboard.
Replace the card that the keyboard is connected to.
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 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 and thenthe card that the devices are directly connected to.

Memory Checkout
DIMM cards are available for increasing memory capacity.
The memory size is displayed in kilobites. 576 KB isreserved by the system, so you calculate the memory sizeby the following equation:[total memory size (MB)] × 1024 − 576 (KB)
For example, if the total memory size is 64 MB, it isdisplayed as 64960 KB.
Memory errors might stop system operations, show error
messages on the screen, or hang the system.
Use the following procedure to isolate memory problems:
1. Power off the computer and remove any installed
DIMM from its slot.
Note: If the computer has a base memory slot andoption memory slots, remove any DIMMs
installed in the option memory slots.
2. Press and hold the F1 key; then power on thecomputer. Hold the F1 key down until theEasy-Setup menu appears.
3. Select Test and press Enter.
4. Select Memory and press Enter to run the memory
test on base memory.
See “Running the Diagnostics” on page 39 for details.

General Descriptions

33

Checkout Guide
If an error appears:
 If the computer don't have the base memory slot,
replace the system board.
 If the computer has the base memory slot,
remove the DIMM installed in the base memory
slot and go to step 2 on page 33. Then if anerror appears, replace the system board.
If an error does not appear, continue the following
procedures.
5. Power off the computer and reinstall the DIMM one
by one; then power on the computer. Verify thememory size; then test the memory. If an error
appears, replace the DIMM.
Note: Make sure that the DIMM is fully installed into
the connector. A loose connection can cause
an error.
6. If the problem does not corrected, replace thefollowing FRU.
a. System board
b. CPU 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 “Displaying the Error Log” on page 42
for more information.

System Programs in Flash Memory: Systemsetup programs and diagnostic tests are stored in theFlash memory.
Flash Memory Update:

The Flash memory update
is required for the following conditions:

New versions of system programs
New features or options

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.

Modem (DSP) Checkout
Note: This section is for the built-in modem model.
Do the following:
1. Go to the diagnostic menu by selecting Test in the
Easy-Setup menu.
2. Select DSP and run the diagnostic tests.
3. If the test detects a DSP problem, replace the modem
card.

34

Checkout Guide

Port Replicator Checkout
Use the following procedure to isolate a port replicator
problem. The 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 port replicator.
3. Unplug the AC Adapter from the port replicator, if
attached.
4. Remove the port replicator from the computer.
5. Reconnect the failing device directly to the computer.
(If another device is already connected to thecomputer, remove it first.)
6. Go to the “Running the Diagnostics” on page 39 andrun the diagnostics.
7. If the advanced diagnostic device test did not find anerror, suspect a problem with the port replicator.
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 port replicator Universal serial bus test with the USB parallel
test cable Parallel port test with the wrap plug installed on
the port replicator FDD-2 device test on the failing device with ascratch diskette
10. If diagnostic errors appear, replace the port replicatoror the diskette drive. If the problem remains after the
replacement, replace the system board.
11. If power problems appear only when the port
replicator is used, replace the port replicator.

Port Replicator Power Overload: If power
shutdown occurs intermittently when PC Card devices areused through a port replicator with PC Card slots, suspect
an over-current problem. Some PC Card devices use
more 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 the devices, use the computer under
the same condition, and see whether a power shutdown
occurs. Do this procedure for all devices to determine thecause.

Power Systems Checkout
To verify the symptom of the problem, power on thecomputer using each of the following power sources:
1. Remove the battery pack.
2. Connect the AC Adapter and check that power is
supplied.

General Descriptions35

Checkout Guide
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 checkout in the following list:“Checking the AC Adapter”“Checking Operational Charging”“Checking the Battery Pack” on page 37“Checking the Backup Battery” on page 38

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 port 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+15.5 to +17.0

2

GroundIf the voltage is not correct, replace the AC Adapter.
If the voltage is within the range, do the following: Replace the system board.
 If the problem is not corrected, go to“Undetermined Problems” section of each model.
Note: An audible noise from the AC Adapter does notalways indicate a defect.

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 or icon does not turn on, remove the battery packand let it return to room temperature. Reinstall the battery

36

Checkout Guide
pack. If the charge indicator or icon still does not turn on,
replace the battery pack.
If the charge indicator still does not turn on, replace either
the system board or DC-DC card that the battery isconnected to. Then reinstall the battery pack. If thereinstalled battery pack is not charged, go to the next
section.

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 can 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:

Terminal

Voltage (V dc)

1+ 0 to + 12.6

4Ground (−)

3. If the voltage is less than +11.0 V dc, the battery packhas been discharged. Recharge the battery pack.
Note: In this case, the battery pack isover-discharged. It takes at least 3 hours torecharge the battery pack even if the indicatordoes not turn on.
If the voltage is still less than +11.0 V dc after
recharging, replace the battery.
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.

General Descriptions37

Checkout Guide

Checking the Backup Battery:Do the following:

1. Power off the computer and unplug the AC Adapter
from the computer.
2. Turn the computer upside down.
3. Remove the backup battery (see “Removal andReplacement” section of each model).
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 +3.2

Black

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

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. If a numericcode indicates the system board or the CPU card as afailing FRU, or the CPU card is indicated by a diagnostic
test by showing FRU code 11, use the following procedure
to isolate 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 30.
Note: Don't touch the keyboard and pointing device
when the system board test is running. Thismight cause an unexpected error.

38

Running the Diagnostics
2. If FRU code 10 appears, replace the system board
but do not replace the CPU card. Remove the CPU
card from the old system board and install it to the
new system board.
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 the“Undetermined Problems” section for each model.

TrackPoint Checkout
If the TrackPoint does not work, check the configuration in
the ThinkPad Configuration program. If the configurationof the TrackPoint is disabled, select Enable to enable it.
If this does not correct the TrackPoint problem, continue
with the following. After you use the TrackPoint, thepointer drifts on the screen for a short time. This
self-acting pointer movement can occur when a slight,
steady pressure is applied to the TrackPoint pointer. Thissymptom is not a hardware problem. No service actions
are necessary if the pointer movement stops in a shortperiod of time.
If a click button problem or the pointing stick problem
occurs, do the following:
1.
2.
3.
4.
5.
6.

Go to the Easy-Setup menu.
Select an item with the pointing stick.
Press any one of the click buttons.
Verify that the item is selected.
Move to another item with the pointing stick.
Press the pointing stick (press-to-select), and verify
that the item is selected.
Note: This step is only for the model that has thepress-to-select function.

7. Verify that all 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 nondefective FRU.
1. Reseat the keyboard cables.
2. Replace the keyboard.
3. Reseat the card that the TrackPoint cable is directly
connected to.
4. Replace the system board.

Running the Diagnostics
The following table lists the special tools needed for the
diagnostics:

General Descriptions

39

Running the Diagnostics
Tool Name

Part Number

PC test card

35G4703

Tri-connector wrap plug

72X8546

USB parallel test cable

05K2580

Use either the TrackPoint or the cursor-moving keys tointeract with the tests. The Enter key works the same as
selecting the OK icon to reply OK.
1. Press and hold F1; then power on the computer.
Hold F1 down until the Easy-Setup menu appears.
2. Click on Test. The basic diagnostic menu appears.
3. Click on a device to run the test. The test progress
screen appears; then OK appears under the tested
device icon when the test ends without any errors.
4. Start the Advanced Diagnostic test by pressing
Ctrl+A on the basic diagnostic menu. The ThinkPad
FRU connections window appears.
5. Click on Exit or press the Esc key. The keyboard
test window appears.
6. When you press a key, a mark appears or disappearson the corresponding key position on the screen.
Repeat this step for any keys that need to be tested.
You can run the keyboard test if you press Ctrl+K in
the advanced diagnostic test mode.
7. To exit the keyboard test, click on Exit or press
Ctrl+Break. The advanced diagnostics window
appears.
8. Click on a device to test it, or click on Test All to test
all devices.
Click on Looptest to run the tests in a repeated loop.
The loop option menu appears. Click on a device;the √ mark appears beside the selected device.
Repeat this step to select multiple devices. Click on
OK to start the diagnostic loop. If no device isselected, all devices tests are looped.
9. 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. Press Esc toexit from the loop test.

40

Running the Diagnostics

PC Card Slots Test
The green LED on the PC test card turns on when the PC
Card slot test is running. If the LED does not turn on,
check that the card is installed correctly by reseating it. If
the LED still does not turn on after the card 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.

Universal Serial Bus (USB) Test
At the advanced diagnostic window, do the following:
1. Connect the USB parallel test cable to the parallel
connector of the computer.
2. Connect Connector 1 of the cable to the USB
connector of the computer.
Note: The illustration shows a ThinkPad 770
computer, but the procedure is the same forthe other model.

3. Click on USB-1 to run the test.
Follow the instructions on the screen. OK appears if
the test passed, but three lines of error codes appear
if the test failed. The defective FRU must be thesystem board.
If you want to test the USB port on the port replicator,
connect the USB parallel test cable to a port
replicator and click on USB-2.
If you want to test the USB ports on a docking
station, connect the USB parallel test cable to theGeneral Descriptions

41

Running the Diagnostics
USB ports of the docking station and click on USB-3
and USB-4.

Displaying the Error Log
Diagnostic errors are printed on a printer attached to theparallel 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.

Enter the advanced diagnostic test.
Press Ctrl+E.
The error log appears.
To exit the screen, click on Exit or press Esc.

The error log is not saved when system power is turned
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 menu,
the device is defective. If necessary, adjust the contrast
control to clearly distinguish the shades of the icon.
Reseat the device connectors. If the symptom remains,replace the device or the system board.
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:
Note: Some ThinkPad 600E computers support only one
FDD at a time. The icon of the diskette drive forsuch models is FDD instead of FDD-1 or FDD-2.
1. Replace the first device in the configuration, such asan FDD-1.
2. If the problem persists, replace the card that thedevice is connected to.
The Parallel, and Serial icons are always displayed in adark shade, because the icons represent subsystems of
the system board and not the attachment of devices.
The FDD-1 icon represents a device in the computer. The
FDD-2 icon represents another device, such as:

An external diskette drive attached to the computerAn external diskette drive attached to a port replicator
A diskette drive in a docking station

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

42

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

Running the Diagnostics

The device ID and error code indicate the detailed portionof the FRU that caused the error. If replacing a FRU does
not correct the problem, see the device ID or error codefrom the previous failure. If they have changed, the cause
might be that the new FRU is defective or that the FRU
was incorrectly installed.

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

Device ID

Suspected Device

SystemBoard

001

System board

003

Keyboard

007

Math coprocessor

086

Pointing device

Memory002

MemoryFDD-1 or
FDD*

006

Diskette drive in thecomputer

FDD-2 or
FDD*

066

External diskette driveor FDD connector

Parallel009

Parallel port

Serial011

Serial port

HDD-1

017

Hard disk drive

HDD-2

151

First (external) hard disk
drive

HDD-3

067

Second (external) harddisk drive

HDD-4

152

Third (external) hard diskdrive

Display050

Display

052
053
054
PCMCIA-1

080

1. Connection of the
PC Card slot
2. PC Card

PCMCIA-2

088

External PC Card

Infrared

103

IR

DSP

113

DSP

Audio (ISA)153

ISA audio

General Descriptions

43

Running the Diagnostics
Icon

Device ID

Suspected Device

USB-1

154

USB

USB-2

155

External USB

USB-3

156

External USB

USB-4

157

External USB

Audio (PCI)

158

PCI audio

CDROM-1

215

CD-ROM

CDROM-2

216

External CD-ROM

DVD-1

217

DVD drive

DVD-2

218

External DVD drive

Note:
*

Some ThinkPad 600E computers support only one FDD at
a time. The icon of the diskette drive for such models is
FDD instead of FDD-1 or FDD-2.

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 by the two rightmost digits. No FRU
is assigned to code 00. If only one FRU is suspected, theother FRU code is 00. See the reference page before
replacing the FRU.
FRU Code

FRU

10

System board

11

CPU card

12

DC-DC card

15

Audio card

16

Modem card

20

Memory30

Reserved

32

External keyboard

33

External mouse34

AC Adapter

35

Stereo Speaker

36

Battery pack

37

Secondary battery pack

38

Fan

39

Box speaker40

LCD assembly

41

DVD or DVD and enhanced video adapter

42

Video card or system board (video)

45

External monitor

44Running the Diagnostics
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 (HDD-1)
2. Hard disk drive (HDD-1)

61

1. Reseat the hard disk drive in thedocking station (HDD-3)
2. Hard disk drive in the docking station(HDD-3)62

1. Reseat the hard disk drive in thedocking station (HDD-2)
2. Hard disk drive in the docking station(HDD-2)63

1. Reseat the hard disk drive in thedocking station (HDD-4)
2. Hard disk drive in the docking station(HDD-4)70

PC Card (at the port replicator)

72

PC Card slot assembly73Port replicator

74

Main board in the docking station

75

USB card in the docking station

90

CD-ROM drive

91

External CD-ROM drive92

DVD drive

93

External DVD drive

If the problem persists after replacement of the FRUs, go
to the “Undetermined Problems” section for each model.

General Descriptions

45

Running the Diagnostics

46

Running the Diagnostics

ThinkPad 600
This chapter includes the descriptions for the ThinkPad
600 series computer.

Model-Unique Functions . . . . . . . . . . . . . . 49
Product Overview. . . . . . . . . . . . . . . 49
Status Indicators . . . . . . . . . . . . . . . . 51
Symptom-to-FRU Index . . . . . . . . . . . . . . 52
Numeric Error Codes . . . . . . . . . . . . . . 52
Beep Symptoms . . . . . . . . . . . . . . . . 57
Audio-Related Symptoms. . . . . . . . . . . 58
CD-ROM-Related Symptoms . . . . . . . . . . 58
Function-Related Symptoms. . . . . . . . . . 60
Indicator-Related Symptoms. . . . . . . . . . 60
Infrared-Related Symptoms . . . . . . . . . . . 61
Keyboard- or TrackPoint-Related Symptoms . . . 61
LCD-Related Symptoms. . . . . . . . . . . . 62
Modem (DSP)-Related Symptoms. . . . . . . 62
PC Card-Related Symptoms. . . . . . . . . . 63
Peripheral-Device-Related Symptoms . . . . . . 63
Power-Related Symptoms. . . . . . . . . . . 64
Other Symptoms . . . . . . . . . . . . . . . . 64
Intermittent Problems. . . . . . . . . . . . . 64
Undetermined Problems. . . . . . . . . . . . 64
FRU Removals and Replacements . . . . . . . . . 66
1010 Backup Battery. . . . . . . . . . . . . 671020 DIMM . . . . . . . . . . . . . . . . . . 68
1030 Battery Pack
. . . . . . . . . . . . . . 69
1040 Hard Disk Drive . . . . . . . . . . . . . 70
1050 UltraslimBay Device . . . . . . . . . . . 71
1060 Keyboard Assembly . . . . . . . . . . . 72
1070 Keyboard . . . . . . . . . . . . . . . . 741080 Speakers . . . . . . . . . . . . . . . . 75
1085 Speaker Cable. . . . . . . . . . . . . 77
1090 LCD Assembly. . . . . . . . . . . . . 78
1100 PC Card (PCMCIA) Slot Assembly. . . . 791110 Modem Card
. . . . . . . . . . . . . . 80
1115 System Kit for RFID . . . . . . . . . . . 811120 Sub Card . . . . . . . . . . . . . . . . 81
1130 CPU Card and Fan. . . . . . . . . . . 83
1140 Guide Rail, Mic. Cable, or TV Out Card . . 851150 System Board . . . . . . . . . . . . . . 87
2010 LCD Front Cover. . . . . . . . . . . . 882020 LCD Hinges and Cables . . . . . . . . . 91
2030 Inverter Card
. . . . . . . . . . . . . . 96
Locations . . . . . . . . . . . . . . . . . . . . . 99
Front View
. . . . . . . . . . . . . . . . . . 99
Bottom View . . . . . . . . . . . . . . . . . 100
Password Pads
. . . . . . . . . . . . . . . 100
Rear View . . . . . . . . . . . . . . . . . . 101
Parts List . . . . . . . . . . . . . . . . . . . . 102
 Copyright IBM Corp. 1999

47

Running the Diagnostics
Model 600 . . . . . . . . . . . . . . . . . .
LCD FRU (TFT) . . . . . . . . . . . . . . .
Model 600E . . . . . . . . . . . . . . . . .
LCD FRU (TFT) . . . . . . . . . . . . . . .
Keyboard . . . . . . . . . . . . . . . . . .
Miscellaneous Parts . . . . . . . . . . . . .
Modem Kit
. . . . . . . . . . . . . . . . .
Common Parts List
. . . . . . . . . . . . .

48

102
105
108
111
112
112
114
115

Model-Unique Functions

Model-Unique Functions
Product Overview
The following table is an overview of the system featuresof the ThinkPad 600 series:
FeatureDescription

Processor

For 600:Intel Pentium MMX 233 MHz,
L2 cacheIntel Pentium II 233 MHz, L2
cacheIntel Pentium II 266 MHz, L2
cacheIntel Pentium II 300 MHz, L2
cache

For 600E:Bus ArchitectureIntel Pentium II 300 MHz, L2cache with AGP
Intel Mobile Pentium II 300PE
MHz, L2 cache with AGP
Intel Mobile Pentium II 366 MHz,
L2 cache with AGP
Intel Mobile Pentium II 400 MHz,
L2 cache with AGP

For 600:


PCI Bus

For 600E:
Memory(Standard)

PCI Bus, AGP Bus

For 600:

32 MB (on the system board)
32 MB (on the system board) and
32 MB in the DIMM slot

For 600E:
Memory (Option)

32 MB (on the system board)
32 MB (on the system board) and
32 MB in the DIMM slot

For 600:

16 MB, 32 MB, 64 MB, or 128 MB
DIMM card (maximum of 288 MB)

For 600E:
CMOS RAM

32 MB, 64 MB, or 128 MB DIMM
card (maximum of 288 MB)

114 bytes +4 Kbytes

ThinkPad 600

49Model-Unique Functions
FeatureDescription

Video

For 600:

13.0-inch, 64K colors 1024×768
pixel HPA color LCD
12.1-inch, 64K colors, 800×600
pixel TFT color LCD
13.3-inch, 64K colors, 1024×768
pixel TFT color LCD

For 600E:


13.3-inch, 16M colors 1024×768
pixel TFT color LCD

Diskette Drive(External)

1.44 MB (3-mode), 3.5-inch

Hard Disk Drive

For 600:

3.2 GB, 2.5-inch, IDE interface
4.0 GB, 2.5-inch, IDE interface

For 600E:
CD-ROM/DVD
Drive

4.0 GB, 2.5-inch, IDE interface
6.4 GB, 2.5-inch, IDE interface
10.0 GB, 2.5-inch, IDE interface

For 600:

24 x CD-ROM drive (some models
have no CD-ROM)

For 600E:

24 x CD-ROM drive
DVD drive (2 x DVD)I/O Port











External monitor
Headphone
Microphone
Mouse
ParallelPort replicator
SerialUSB
Video output port (for 600E only)Internal Modem

For 600:

56.6 Kbps (some models have nointernal modem.)

For 600E:

56.6 Kbps

Audio






16-bit audio
Internal stereo speaker
Internal microphone
Software control volume

Infrared Transfer

IrDA 1.1

PCMCIA

One Type-III or two Type-II

AC Adapter

56-Watt type50

Model-Unique Functions

Status Indicators
The system status indicators show the current computer
status in different colors (green and orange):

SymbolColor

Meaning.1/Battery

GreenThe battery is fully charged.

OrangeThe battery is charging.

BlinkingorangeThe battery needs charging.

.2/Suspend
Mode

Green

Suspend mode

Blinking
greenEntering suspend mode

.3/Hard Disk
In UseOrangeData is read from or written
to the hard disk drive.

.4/Numeric
Lock

Green

The numeric keypad on the
keyboard is enabled.

.5/Caps
Lock

Green

Caps Lock mode is enabled.

.6/Scroll
Lock

Green

Arrow keys can be used as
screen-scroll function keys.

.7/Power On

GreenPower onThinkPad 600

51Symptom-to-FRU Index

Symptom-to-FRU Index
The symptom-to-FRU index lists the symptoms and errors
and their 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 replacement did not solve theproblem, put the original part back in the computer.
Do not replace a nondefective FRU.
This index can also help you determine the next possible
FRUs to be replaced 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 64.
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(Planar parity.)52

1. Go to “Memory
Checkout” onpage 33.
2. DIMM card
3. Detach the expansion
unit if it is attached tothe computer.
4. System board

Symptom-to-FRU Index
Symptom / Error

FRU / Action in Sequence

111(I/O parity.)

1. Go to “Memory
Checkout” onpage 33.
2. Expansion unit or port
replicator.
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)

158(The hard disk password
was not set even though thesupervisor password is set.)Set the password for the
hard disk drive.

159(The hard disk password is
not set the same as thesupervisor password.)

Set the correct password
for the hard disk drive.

161(Dead battery.)

1. Go to “Checking the
Backup Battery” onpage 38.
2. Backup battery
3. System board

163(Time and date were notset.)

1. Set time and date.
2. 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 42 before changing
any FRUs.)

1. Check device
configuration.
2. Hard disk drive
assembly
3. System board

175, 177, 178

1. System board

175: EEPROM CRC#1 error.
177: Supervisor
password check sum
error.
178: EEPROM is not
functional.
17XX
1701: Hard disk
controller failure.
1780, 1790: Hard disk
0 error.
1781, 1791: Hard disk
1 error.

1. Hard disk drive
2. System board

ThinkPad 600

53Symptom-to-FRU Index
Symptom / Error

FRU / Action in Sequence

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

184(Power-on password checksum error.)

Reset the power-on
password in Easy-Setup.

185(The startup sequence is
not valid. Suspect thatpower was off when thestartup sequence was being
updated.)Reset the startup
sequence in Easy-Setup.

186

1. System board

188, 189(BAD EEPROM CRC #1.
An incorrect checksum of
the EEPROM is received.)

1. System board

190(A depleted battery pack
was installed when the
power was on.)Go to “Checking theBattery Pack” on page 37.

191XX(PM initialization error.)

1. System board

192(Fan error.)

1. Measure the voltageof the backup
battery. If thevoltage is notcorrect, replace thebackup battery.
2. Fan3. System board

193(RF Antenna has been
removed.)1. Type the correct
Supervisor Password
at the password
prompt.
2. Reseat the RF
Antenna to the HDD
cover.

194(The computer is carriedthrough the portal gate.)

1. Type the correct
Supervisor Password
at the password
prompt.

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

Check if the configuration
was changed.
For example, check if the
DIMM card is added.

196(A read error occurred in thehibernation area of the harddisk drive.)

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

199XX(Resume error.)

1. System board

54

Symptom-to-FRU Index
Symptom / Error

FRU / Action in Sequence

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 33.
2. DIMM card
3. System board

225(Unsupported memory
module.)1. Check if the
supported DIMM is
installed.
2. DIMM card
3. System board

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

1. Go to “Keyboard or
Auxiliary Input
Device Checkout” onpage 32.
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
Checkout” onpage 31.
2. Diskette drive
assembly
3. Diskette
4. System board

602(Diskette read error.)

1. Go to “Diskette Drive
Checkout” onpage 31.
2. Diskette
3. Diskette drive
assembly

604(Unacceptable ID was readfrom the diskette drive.)

1. Go to “Diskette Drive
Checkout” onpage 31.
2. Diskette drive
assembly
3. System board

2402

1. TV Out Card

24XX
(2401: System board video
error.)

1. System board

ThinkPad 600

55

Symptom-to-FRU Index
Symptom / Error

FRU / Action in Sequence

808X

1. PC Card 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 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 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.

1. Reseat the keyboard
cable on the subcard.
2. Keyboard
3. External mouse
4. Sub card
5. System board

1. Check that theoperating system isinstalled in the harddisk drive. If not,install the operating
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.

I9990303(Bank–2 flash ROM checksum error.)

1. System board

Other codes not listed
above.

Go to “Undetermined
Problems” on page 64.

56

Symptom-to-FRU Index

Beep Symptoms
Symptom / Error

FRU / Action in Sequence

Continuous beeps.

1. 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 and 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. (Allow thesystem to completely shut
down before changing thebattery.)

Two short beeps with error
codes.

POST error. See“Numeric Error Codes” onpage 52.

Two short beeps with blankscreen.

1. 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 35.
2. System board
3. Check the power outlet

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. Sub card
4. System board

ThinkPad 600

57

Symptom-to-FRU Index

Audio-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.)Check that the device
driver is installed
correctly.

CD-ROM-Related Symptoms
Symptom / Error

FRU / Action in Sequence

You hear a noise from the
CD-ROM drive when the
CD-ROM is spinning.

1. CD-ROM drive
2. System board

The CD-ROM tray does notopen even if you press the
CD-ROM eject button.

Insert a pin into the
CD-ROM emergency ejecthole and eject the
CD-ROM tray.

The compact disc cannot beread.

Make sure that:








The compact disc is
not dirty. If it is, clean
it with a CD-ROM
cleaner kit.
The compact disc is
not defective. If it is,try another compact
disc.
The compact disc isplaced in the tray withthe label side up.
The compact discformat conforms with
one of the following:– Music CD– CD-ROM or
CD-ROM XA– Multisession
photo CD
– Video CD and
CD-i movie(Windows 95
does not support
CD-i movies)

1. CD-ROM drive
2. System board

58

Symptom-to-FRU Index
Symptom / Error

FRU / Action in Sequence

The CD-ROM does notwork.

Make sure that:







The computer power isturned on and acompact disc is in the
CD-ROM drive.
The CD-ROM drive
connector is firmly
connected to thecomputer.
The CD-ROM drive
tray is firmly closed.
The device drivers arecorrectly installed.

If the CD-ROM drive in thedocking station does notwork, do the following:
1. Click on Start.
2. Move the cursor to
Programs andThinkPad; then clickon ThinkPad
Configuration.
3. Click on Docking
Station.
4. Make sure that you
checked Enable IDE
device in the docking
station.
Note: Do not use IRQ
11 and 15 for
the PCI device
setting.
5. Click on OK.
If the problem remains,replace the following
FRUs in order.
1. CD-ROM drive
2. System board

ThinkPad 600

59Symptom-to-FRU Index

Function-Related Symptoms
Symptom / Error

FRU / Action in Sequence

The system does notsuspend or resume whenthe LCD is closed or
opened.

1. Go to “Suspend
Mode” on page 26,
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

The battery Fuel-Gauge
does not go higher than90%.

Go to “Checking theBattery Pack” on page 37
and see the note.

The memory count (size)
appears different from theactual size.

Go to “Memory Checkout”
on page 33.

The system configuration
does not match the installed
devices.

Go to “Checking theInstalled Devices List” onpage 42.

The system hangsintermittently.

Go to “Intermittent
Problems” on page 64.

Indicator-Related Symptoms
Symptom / Error

FRU / Action in Sequence

The indicator incorrectly
remains off or on, butsystem runs correctly.

1. Sub card
2. System board

The battery power statusindicator blinks from green,
yellow, to orange.

1. Check that a correct
battery is installed.
2. Battery pack
3. System board

The battery indicator does
not turn on when the battery
is installed.

1. Battery pack
2. System board

60Symptom-to-FRU Index

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.
Use the ThinkPad
Configurations utility.
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.

Keyboard- or TrackPoint-Related
Symptoms
Symptom / Error

FRU / Action in Sequence

The keyboard (one or morekeys) does not work.

1. Reseat the keyboard
cable on the subcard.
2. Keyboard
3. System board

The TrackPoint does notwork.

1. Reseat the keyboard
cable on the systemboard.
2. Go to “TrackPoint
Checkout” on page 39.
3. Keyboard
4. System board

The pointer moves
automatically or does notwork correctly.

See “TrackPoint
Checkout” on page 39.

ThinkPad 600

61Symptom-to-FRU Index

LCD-Related Symptoms
Important
The TFT LCD for the notebook computer contains
over 2,359,296 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 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.



LCD too dark.



LCD brightness cannot
be adjusted.

1. Reseat the LCD
connectors.
2. LCD assembly
3. System board

LCD contrast cannot
be adjusted.



LCD screen
unreadable.
Characters missing
pels.
Screen abnormal.
Wrong color displayed.

LCD has extra horizontal orvertical lines displayed.

1. See important notefor “LCD-Related
Symptoms.”
2. Reseat all LCD
connectors.
3. LCD assembly
4. System board
1. LCD assembly

Modem (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.)Check that the device
driver is installed
correctly.

In OS/2, DOS, or Windows,
the modem does not work.

Check that the DSP
Modem is active.

OS/2 and Windows:
Click on the DSP Modem
icon in the ThinkPad
Configuration program.
DOS:
Run the MWMODEM ON
command.

62

Symptom-to-FRU Index

PC Card-Related Symptoms
Symptom / Error

FRU / Action in Sequence

PC Card does not work ineither the upper slot or the
lower slot.

1. Reseat the PCMCIA
slot assembly.
2. PCMCIA slot assembly
3. System board

Diagnostic error code:
DEV 080
ERR 33FRU 7210
PCMCIA slot pin isdamaged.

PCMCIA slot assembly

PC Card does not work.

1. Reseat the PC Card
2. Check that the PC
Card is enabled in the
ThinkPad Configuration
program
3. Reseat the PCMCIA
slot assembly.
4. PCMCIA slot assembly
5. System board

Peripheral-Device-Related Symptoms
Symptom / Error

FRU / Action in Sequence

The external monitor does
not work correctly.

Connect the externalmonitor to another PC. If
the monitor works fine,replace the system board.
If not, replace the externalmonitor.

Printer problems.

1. Run printer self-test.
2. Run parallel port wrap
test.
3. System board
4. Printer cable

Serial or parallel port device
problems.

1. Run serial/parallel
port wrap test.
2. Device
3. System board
4. Device cableThinkPad 600

63Symptom-to-FRU Index

Power-Related Symptoms
Symptom / Error

FRU / Action in Sequence

Power shuts 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
2 hours.
4. System board
5. Check the power
outlet.

The system does not power
off.
(See “Reset Switch” onpage 23.)

1. Press the power
shutdown switch.
2. System board

Other Symptoms
Symptom / Error

FRU / Action in Sequence

Errors occur only when theport replicator is used.

See “Port Replicator
Checkout” on page 35.

PC Card slot pin isdamaged.

1. PC Card slots
assembly

Note
If you cannot find a symptom or an error in this list
and the problem remains, see “Undetermined
Problems”

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 an 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 these procedures to isolate the failing
FRU (do not isolate nondefective FRUs).

64

Symptom-to-FRU Index
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 35):
1. Power off the computer.
2. Visually check them for damage. If any problems arefound, replace the FRU.
3. Remove or disconnect all of the following devices:a. Non-IBM devices
b. Devices attached to the port replicatorc. Printer, mouse, and other external devices
d. Battery packe. Hard disk drive
f. External diskette drive
g. DIMMh. CD-ROM and diskette drive in the UltraslimBay
i. PC Cards
4. Power on the computer.
5. Determine if the problem has changed.
6. If the problem does not recur, reconnect the removed
devices one at a time until you find the failing FRU.
7. If the problem remains, replace the following FRUs
one at a time. Do not replace a nondefective FRU:
a. System board
b. LCD assemblyc. CPU card

ThinkPad 600

65

FRU Removals and Replacements

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.
If other FRUs must be removed before the failing
FRU is removed, they are listed at the top of thepage.
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 asshown in the procedures.

Reviews “FRU Replacement Notices” on page 19 before
replacing any FRU.
Caution
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.
CautionThe 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.
Attention
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.
Attention
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 (P/N 6405959)
must be used to establish personal grounding.

66

FRU Removals and Replacements

1010 Backup Battery
CautionThe backup battery is a lithium battery and can causea fire, an explosion, or severe burns. Do not recharge
it, remove its polarized connector, disassemble it, heatit above 100°C (212°F), incinerate it, or expose its cell
contents to water. Dispose of the battery as requiredby local ordinances or regulations. Use of an incorrect
battery can result in ignition or explosion of thebattery.

Note
Loosen (but not remove) the screw .1/.

1
2

3

1

2

ThinkPad 600

67

FRU Removals and Replacements

1020 DIMM

1

1

Top View

2

68

FRU Removals and Replacements

1030 Battery Pack

UnlockLock

1

2

ThinkPad 600

69

FRU Removals and Replacements

1040 Hard Disk Drive
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 drive.
Before removing the drive, have the user make a
backup copy of all the information on the drive if
possible.
Never remove the drive while the system is operating
or is in suspend mode.

1

3

2
Step

Screw (Quantity)

Color

Torque.1/

Coin screw—Or—
Security screw

Black

—

Note: Use a 2.5-mm allen wrench to remove the security
screw.

Note
Make sure that the HDD connector is firmly
connected.

70

FRU Removals and Replacements

1050 UltraslimBay Device
The artwork shows the FDD in the UltraslimBay, one of the
CD-ROM drive, DVD Drive, battery pack, or HDD withadapter is available in the UltraslimBay.

1
2

When the security screw is installed
In step .1/, use a 2.5-mm allen wrench to remove thesecurity screw.

ThinkPad 600

71

FRU Removals and Replacements

1060 Keyboard AssemblyBattery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)

1
2

3

4

5

Turn the computer right side up.
Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 19.5 mm,
nylon-coated (3)Black

4 kgcm.2/

M2.5 × 16 mm,
nylon-coated (2)Black

4 kgcm.3/

M2.5 × 4.8 mm,
nylon-coated (1)Black

4 kgcm72

FRU Removals and Replacements
Step

Screw (Quantity)

Color

Torque.4/

M2.5 × 3 mm,
nylon-coated (4)Yellow

4 kgcm.5/

M2.5 × 4.8 mm,
nylon-coated (1)Black

4 kgcm

6

Latch

7

8

ThinkPad 600

73

FRU Removals and Replacements

1070 KeyboardBattery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
Note

When you tear off the insulator in step .1/, do it gently
for it is reused.

2

3
4
1

2
Bottom view

4

Step

Screw (Quantity)

Color

Torque.2/

M2.5 × 3 mm,
nylon-coated (6)Yellow

4 kgcm74

FRU Removals and Replacements

1080 Speakers
Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
Note

In step .1/, remove the insulator on the left speaker.

2

3

2
4

1
4

Bottom view
Step

Screw (Quantity)

Color

Torque.2/

M2.5 × 3 mm,
nylon-coated (6)Yellow

4 kgcmThinkPad 600

75

FRU Removals and Replacements
Note
When replacing the right speaker, see the following
artwork for its cable routing.

76

FRU Removals and Replacements

1085 Speaker Cable

Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
Note

In step .1/, remove the insulator on the left speaker.

2

4

1
3

Bottom view
Step

Screw (Quantity)

Color

Torque.2/

M2.5 × 3 mm,
nylon-coated (1)Yellow

4 kgcmThinkPad 600

77

FRU Removals and Replacements

1090 LCD AssemblyBattery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
Note

For the LCD FRU removals and replacement, go to“2010 LCD Front Cover” on page 88.

1

3

4

3

2

5
6

7

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coated (4)Black

4 kgcm.3/

M2.5 × 4.8 mm,
nylon-coated (4)Black

4 kgcm.4/

M2.5 × 4.8 mm,
nylon-coated (1)Black

4 kgcm78

FRU Removals and Replacements

1100 PC Card (PCMCIA) Slot AssemblyBattery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)

2

1

Connector

3

Step

Screw (Quantity)

Color

Torque.1/

M2.0 × 9.5 mm,
nylon-coated (4)Black

2.5 kgcm

ThinkPad 600

79

FRU Removals and Replacements

1110 Modem Card

Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)

1

Connector

2
3

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coated (2)Black

4 kgcm80

FRU Removals and Replacements

1115 System Kit for RFID
Note
This FRU is only for 600E (2645-AAU) only.







Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
Modem Card (1110)

1120 Sub Card






Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
LCD Assembly (1090)

ThinkPad 600

81

FRU Removals and Replacements

2

3
1

Step

Screw (Quantity)

Color

Torque.2/

M2.5 × 4.8 mm,
nylon-coated (2)Black

4 kgcm82

FRU Removals and Replacements

1130 CPU Card and FanBattery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)

Step

Screw (Quantity)

Color

Torque.1/

M2.0 × 9.5 mm,
nylon-coated (1)Black

2.5 kgcm.3/

M2.0 × 9.5 mm,
nylon-coated (4)Black

2.5 kgcm

ThinkPad 600

83

FRU Removals and Replacements

5

Fan

6

CPU card

Step

Screw (Quantity)

Color

Torque.5/

M2.0 × 4.0 mm,
nylon-coated (2)Black

2.5 kgcm

Note
When you replace the CPU card, press only on theplaces indicated in the figure. Press both sides atthe same time. Do not press only one side or any
other part of the card..

84

FRU Removals and Replacements

1140 Guide Rail, Mic. Cable, or TV Out
Card





Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
Note

TV out card is available for 600E model only.

For 600

Step

Screw (Quantity)

Color

Torque.4/

M2.0 × 9.5 mm,
nylon-coated (1)Black

2.5 kgcm.5/

M2.5 × 4.8 mm,
nylon-coated (3)Black

4 kgcmThinkPad 600

85

FRU Removals and Replacements

For 600E

Step

Screw (Quantity)

Color

Torque.4/

M2.0 × 9.5 mm,
nylon-coated (1)Black

2.5 kgcm.5/

M2.5 × 4.8 mm,
nylon-coated (2)Black

4 kgcm.7/

M2.5 × 7 mm,
nylon-coated (2)Yellow

4 kgcmNote
Make sure the connector on the TV out card is firmly
connected.

86

FRU Removals and Replacements

1150 System Board













Backup Battery (1010)
DIMM (1020)
Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
LCD Assembly (1090)
PC Card (PCMCIA) Slot Assembly (1100)
Modem Card (1110)
Sub Card (1120)
CPU Card and Fan (1130)
TV Out Card (1140)

2

3

4

1

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coated (3)Black

4 kgcm.2/

M2.5 × 4.8 mm,
nylon-coated (1)Black

4 kgcmThinkPad 600

87

FRU Removals and Replacements

2010 LCD Front Cover






Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
LCD Assembly (1090)
Important

The TFT LCD for the notebook computer contains
over 2,359,296 thin-film transistors. 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 ormore.

12.1-Inch TFT Panel (600 Only)

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coated (2)Black

4 kgcm88

FRU Removals and Replacements

13.3-Inch TFT Panel

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coated (2)Black

4 kgcm.1/

M2.5 × 4.8 mm,
nylon-coated (4)Black

4 kgcmThinkPad 600

89

FRU Removals and Replacements

13.0-Inch HPA Panel (600 Only)

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coating (2)Black

4 kgcm.1/

M2.5 × 4.8 mm,
nylon-coating (4)Black

4 kgcm90

FRU Removals and Replacements

2020 LCD Hinges and Cables







Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
LCD Assembly (1090)
LCD Front Cover (2010)12.1-Inch TFT Panel (600 Only)

Step

Screw (Quantity)

Color

Torque.2/

M2 × 4.8 mm, (8)Black

4 kgcmThinkPad 600

91

FRU Removals and Replacements

13.3-Inch TFT Panel

Note
When you replace the cables, make sure the cables
are not caught by the LCD panel.

92

FRU Removals and Replacements

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coated (1)Black

4 kgcmThinkPad 600

93

FRU Removals and Replacements

13.0-Inch HPA Panel (600 Only)

Note
When you replace the cables, make sure the cables
are not caught by the LCD panel.

Step

Screw (Quantity)

Color

Torque.2/

M2.5 × 4.8 mm,
nylon-coated (6)Black

4 kgcm94

FRU Removals and Replacements

ThinkPad 600

95

FRU Removals and Replacements

2030 Inverter Card








Battery Pack (1030)
Hard Disk Drive (1040)
CD-ROM Drive or Diskette Drive (1050)
Keyboard Assembly (1060)
LCD Assembly (1090)
LCD Front Cover (2010)
LCD Hinges and Cables (2020)

12.1-Inch TFT Panel (600 Only)

Step

Screw (Quantity)

Color

Torque.2/

M2.0 × 3 mm,
nylon-coated (2)Silver

2.5 kgcm

Note: Connect the LCD connector to the inverter card bylining them up straight.

96

FRU Removals and Replacements

13.3-Inch TFT Panel

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coating (1)Black

4 kgcmThinkPad 600

97

FRU Removals and Replacements

13.0-Inch HPA Panel (600 Only)

3

1

2

Step

Screw (Quantity)

Color

Torque.1/

M2.5 × 4.8 mm,
nylon-coating (1)Black

4 kgcm98

Locations

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

PC Card Slots
Infrared Port
Headphone Jack
Microphone Jack
External Diskette Drive Connector
Video Out Connector
LCD Latch
Diskette/CD-ROM Drive
TrackPoint
Hard Disk Drive
Fn KeyKeyboard
Indicator Panel
Brightness Control
LCD Panel
Built-in Microphone

ThinkPad 600

99Locations

Bottom View
.1/ Battery Pack.2/ DIMM Cover.3/ UltraslimBay Indicator

Password Pads

100

Locations

Rear View.1/ LCD Latch.2/ Security Keyhole.3/ Modem Port
.4/ Power Switch.5/ Reset Switch.6/ Universal Serial Connector.7/ AC Adapter Jack
.8/ Serial Connector.9/ System Expansion Connector.1ð/ Parallel Connector.11/ External Monitor Connector.12/ External-Input-Device Connector

ThinkPad 600

101

Parts List

Parts List
Model 600

102

Parts List
Index
1
2
3
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

System Unit
LCD Assembly (see “LCD FRU (TFT)” on page 105.)
Center Cover (see misc. parts)
Keyboard Bezel
05K7046
Keyboard Bezel - Korea
05K7048
Speaker and Microphone Cable (see misc. parts)
Keyboard (see “Keyboard” on page 112)
Holder for CPU Card (see misc. parts)
CPU Card (MMX 233 MHz)
12J0408
CPU Card (Pentium II 233 MHz)
10L0888
CPU Card (Pentium II 266 MHz)
10L0887
CPU Card (Pentium II 300 MHz)
10L1020
Sub Card
05K3468
Mic. Cable (see misc. parts)
Guide Rail (see misc. parts)
Base Cover (with modem)
05K4826
Base Cover (without modem)
05K5376
Base Cover for Korea
05K5274
Base Cover for China
05K5651
Base Cover for Taiwan
05K5667
PC Card Slot
05K4790
CD-ROM Drive
05K9045
CD-ROM Drive
20L1926
Diskette Drive
05K8874
DIMM Cover
05K7064
Battery Pack
02K7018
Hard Disk Drive Cover, Coin Screw
05K5995
Hard Disk Drive (3.2 GB)
22L0005
Hard Disk Drive (3.2 GB, 905mm)
28L1595
Hard Disk Drive (4.0 GB)
83H7085
Hard Disk Drive (5.1 GB)
83H7102
Hard Disk Drive (6.4 GB)
83H7103
Hard Disk Shield
05K4752
Backup Battery
02K6502
Insulator for Modem (see misc. parts)
System Board (12.1 LCD model)
10L1716
System Board (13.0 LCD model)
10L1740
System Board (13.3 LCD model)
10L1711
System Board (13.3 LCD model)
10L1209
Backup Battery Holder
05K4827
Power Switch Knob (see misc. parts)
Modem Card
05K3469
Fan
05K4830
Keyboard Bracket (see misc. parts)
Bracket for Keyboard Corner (see misc. parts)
TrackPoint Cap
84G6536
Speaker
02K4897

ThinkPad 600

103

Parts List
Index

104

System Unit
Telephone Cable
External FDD CoverBlank Bay
CD-ROM Carrying Case
AC Adapter (56 W)
2-pin
2-pin
3-pin
3-pin
Doors
FDD
I/O Right
I/O LeftUSB
Miscellaneous Parts for Base Cover
System Miscellaneous Parts
Center Cover
Guide Rail
Insulator for Modem
Insulator for Bay
Speaker and Microphone Cable
Holder for CPU Card
Power Switch Knob
Blank Door for Modem
Latch for Keyboard Bezel
Bracket for Keyboard
Bracket for Blind Corner
Bracket for Keyboard Corner
System Board Miscellaneous Parts
I/O PlateHex Stud for Bus
Hex Stud for D-Sub
FDD/Audio Cover
USB Plate
Holder Sub Card
Insulator System Board Battery
Insulator System Board Bay
Insulator System Board Fuse

05K2707
05K6187
05K4842
05K4843
11J8974
02K6497
02K7007
02K7011
05K4828

05K4827
05K483105K4829

Parts List

LCD FRU (TFT)
12.1-Inch TFT

Index
1
2
3
4
5

System Unit
Cover Set
LCD Panel
Inverter CardLCD Cables
Hinges

05K5255
05K9335
10L0931
05K2655
05K5257

ThinkPad 600

105Parts List

13.3-Inch TFT

Index
1
2
3
4
5

106

System Unit
Cover Set
Cover Set (Korea)
LCD Panel (DBU)
LCD Panel (LG)
HingesLCD Cables
Inverter Card

05K4833
05K5256
05K9428
05K9367
05K4835
22L1891
10L1719

Parts List

13.0-Inch HPA

Index
1
2
3
4
5

System Unit
Cover Set
LCD Panel
HingesLCD Cables
Inverter Card

05K4832
05K9337
05K4834
05K2645
05K3470

ThinkPad 600

107

Parts List

Model 600E

108

Parts List
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 (TFT)” on page 111)
Center Cover (see misc. parts)
Keyboard Bezel
05K5856
Speaker and Microphone Cable 2 (see misc. parts)
Keyboard (see “Keyboard” on page 112)
Holder for CPU Card (see misc. parts)
CPU Card (Dixon 300 MHz, AGP)
10L1277
CPU Card (Dixon 366 MHz, AGP)
10L1260
CPU Card (Dixon 400 MHz, AGP)
10L1333
Sub Card 2
10L1193Mic. Cable (see misc. parts)
Guide Rail 2 (see misc. parts)
TV Out Card
10L1192
Base Cover
05K6168
for China
05K6169
for Taiwan
05K6170
for Korea
05K6171
PC Card Slot
05K4790
DVD Drive
05K9068
DVD Drive
05K9106
CD-ROM Drive (LG)05K9134
CD-ROM Drive (SANYO)
05K9059
CD-ROM Drive (SANYO)
05K8993
CD-ROM Drive (TOSHIBA)
05K9124
Diskette Drive
05K8874
DIMM Cover
05K7064
Battery Pack
02K7018
Hard Disk Drive Cover, Coin Screw
05K5995
Hard Disk Drive (4.0 GB, SSD)
22L0018
Hard Disk Drive (4.0 GB, TOSHIBA)
36L8619
Hard Disk Drive (6.4 GB, SSD)
22L0019
Hard Disk Drive (6.4 GB, HITACHI)
36L8615
Hard Disk Drive (10.0 GB, SSD)
22L0016
Hard Disk Shield
05K4752
Backup Battery
02K6502
Insulator for Modem (see misc. parts)
System Board (13.3" AGP model)
10L1191
Note: This system board is for 2645-55x and 2645-A5U.
System Board (13.3" 32MB AGP model)
10L1270
Note: In U.S., this FRU is for 2645-4Ax,
2645-8Ax, 2645-AAx, 2645-5Ax, 2645-4Bx,
2645-8Bx, and 2645-ABx.
Backup Battery Holder
05K4827
Power Switch Knob (see misc. parts)
Modem Card
05K3469
Fan
05K4830
Keyboard Bracket (see misc. parts)
Bracket for Keyboard Corner (see misc. parts)
TrackPoint Cap
84G6536
Speaker
02K4897

ThinkPad 600

109Parts List
Index

System Unit
Telephone Cable
Video Cable
External FDD CoverBlank Bay
CD-ROM Carrying Case
AC Adapter (56 W)
2-pin
2-pin
3-pin
3-pin
Doors
FDD
I/O Right
I/O Left
USB
System Kit for RFID
Miscellaneous Parts for Base Cover
System Miscellaneous Parts
Center Cover
Guide Rail
Insulator for Modem
Insulator for Bay
Speaker and Microphone Cable 2
Holder for CPU Card
Power Switch
Latch for Keyboard Bezel
Bracket for Keyboard
Bracket for Blind Corner
Bracket for Keyboard Corner
System Board Miscellaneous Parts
I/O PlateHex Stud for Bus
Hex Stud for D-Sub
FDD/Audio Cover
USB Plate
Holder Sub Card
Insulator System Board Battery
Insulator System Board Bay 2
Insulator System Board Fuse
System Board Miscellaneous Parts 2

110

05K2707
05K282105K6187
05K4842
05K4843
02K6554
02K6556
02K6555
02K6557
05K4828

05K5855
05K4827
05K5854

05K5853

05K4829

Parts List

LCD FRU (TFT)
13.3-Inch TFT

Index
1
2

3
4
5

System Unit
Cover Set
LCD Panel (DBU)
LCD Panel (HITACHI)LCD Panel (LG)LCD Panel (Samsung)HingesLCD Cables
Inverter Card

05K4833
05K9398
05K9466
05K9519
05K9546
05K4835
22L1891
10L1719

ThinkPad 600

111

Parts List

Keyboard
ArabicBelgianCanadian French
Czech
DanishDutch
FrenchGerman
Greek
Hungary
Hebrew
ItalianJapanese
KoreanLatin American Spanish
NorwegianPortuguese
Russian
SpanishSwedish or Finnish
Swiss
TaiwanTurkish
U.K. English
U.S. English

02K4837
02K4801
02K4788
02K4839
02K4794
02K4791
02K4790
02K4789
02K4843
02K4841
02K4835
02K4795
02K4786
02K4800
02K4799
02K4793
02K4798
02K4833
02K4796
02K4792
02K4797
02K4803
02K4802
02K4787
02K4785

Miscellaneous Parts
Screw Kit (for 600 series)
Including nylon-coated screws:
Pan head screw M2 x 4 mm (black)
Pan head screw M2 x 9.5 mm (black)
Pan head screw M2.5 x 3 mm (yellow)
Flat head screw M2.5 x 4.8 mm (black)
Flat head screw M2.5 x 16 mm (black)
Flat head screw M2.5 x 19.5 mm (black)
Flat head screw M3 x 3 mm (black)
Screw Cap (painted)
Screw Cap (no painted)

112

05K4841

Parts List

Option Parts List
24X-10X IDE CD-ROM Drive
20X-8X CD-ROM Drive
20X-8X Stereo CD-ROM Drive
56 AC Adapter (2-pin)
4.0 GB Hard Disk Drive
6.4 GB Hard Disk Drive
Battery Charger
Battery Attachment
External Battery Charger
LS-120PC Card Enabler
RFID Option
Secondary Battery
Secondary HDD Adapter
Slim Bay Adapter
SuperDisk UltraslimBay Drive
SelectaBase PC Card Enabler
SelectaBase 600
SelectaDock III
UltraslimBay Battery
UltraslimBay HDD Adapter
UltraslimBay DVD Drive-For North America (Region 1)-For Japan and EMEA (Region 2)-For AP North and AP South (Region 3)-For Latin Americaand AP South (Region 4)-For Russia (Region 5)-For China (Region 6)
32 MB SDRAM SO DIMM
64 MB SDRAM SO DIMM
128 MB SDRAM SO DIMM
Miniature Mouse (Black)
TrackPoint III Cap

ThinkPad 600

12J2471
19690101969011
83H6739
05K8887
02K0520
11J9003
02K6501
02K6499
20L1922
12J2480
05K5862
02K6505
05K5338
05K5858
20L1929
83H6741
12J24673547003
02K6504
05K5336
05K8890
05K8891
05K8832
05K8893
05K8959
05K8960
42H2819
20L024201K1153
07G0033
39H1354113

Parts List

Modem Kit
Australia
Austria
BelgiumBrazilCyprusDenmark
FranceGermany
Indonesia
Ireland
Italy
IsraelMalaysia
MexicoNetherlands
New Zealand
Norway/Finland
Pakistan
Philippines
Portugal
Singapore
Spain
SwedenSwitzerland
TurkeyUK
Vietnam114

22L1885
22L1863
22L1861
22L1871
22L1887
22L1879
22L1862
22L1877
22L1872
22L1896
22L1865
22L1869
22L1868
22L1870
22L1878
22L1860
22L1880
22L1873
22L1874
22L1883
22L1867
22L1866
22L1881
22L1882
22L1884
22L1876
22L1875

Parts List

Common Parts List
Tools
Tri-Connector Wrap PlugPC Test Card
Audio Wrap Cable
USB Parallel Test Cable
Screwdriver Kit
Torque Screwdriver
5mm Socket Wrench
Screwdriver
ThinkPad Hardware MaintenanceDiskette Version 1.50

ThinkPad 600

72X8546
35G4703
66G5180
05K2580
95F3598
05K4695
05K4694
27L8126

115

Parts List

Power Cords:

IBM power cords for a specific country
are usually available only in that country:

For 2-pin power cords:
P/N

Used in These Countries

13H5273

Japan

For 3-pin power cords:
P/N

Used in These Countries

02K0539

People's Republic of China (other than HongKong)

36L8867

Argentin

76H3514

Argentina, Australia, New Zealand, Papua New
Guinea, Paraguay, Uruguay

76H3516

Aruba, Bahamas, Barbados, Bermuda, Bolivia,
Brazil, Canada, Cayman Islands, Colombia,
Costa Rica, Curacao, Dominican Republic,
Ecuador, El Salvador, Guatemala, Guyana,
Haiti, Honduras, Jamaica, Korea (South),
Liberia, Mexico, Netherlands Antilles, Nicaragua,
Panama, Peru, Philippines, Saudi Arabia,
Suriname, Taiwan, Thailand, Trinidad (WestIndies), United States of America, Venezuela

76H3518

Austria, Belgium, Bosnia-Herzogovina, Bulgaria,
Croatia, Czech Republic, Egypt, Finland,
France, Germany, Greece, Hungary, Iceland,
Indonesia, Macao, Macedonia, Netherlands,
Norway, Poland, Portugal, Romania, Slovakia,
Slovenia, Spain, Sweden, Turkey, Yugoslavia

76H3520

Denmark

76H3522

Bangladesh, Myanmar, Pakistan, South Africa,
Sri Lanka

76H3524

Abu Dhabi, Albania, Antigua, Bahrain, Brunei,
Dubai, Fiji, Hong Kong, India, Ireland, Kenya,
Kuwait, Malaysia, Nigeria, Oman, Qatar,
Singapore, United Kingdom

76H3526

Japan

76H3528

Switzerland, Liechtenstein

76H3530

Chile, Ethiopia, Italy, Libya

76H3532

Israel

76H3535

Korea

116

Notices

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. Any functionallyequivalent product, program, or service that does not
infringe any of the intellectual property rights of IBM may
be used instead of the IBM product, program, or service.
The evaluation and verification of operation in conjunction
with other products, except those expressly designated byIBM, 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 the
IBM Director of Licensing, IBM Corporation, 500 Columbus
Avenue, Thornwood, NY 10594, U.S.A.

Trademarks
The following terms are trademarks of the IBM Corporationin the United States or other countries or both:IBM
ThinkPad
TrackPoint
Microsoft, Windows, and the Windows 95 flag logo aretrademarks or registered trademarks of Microsoft
Corporation.
Pentium, MMX, ProShare, LANDesk, andActionMedia are trademarks or registered trademarks ofIntel Corporation in the U.S. and other countries.
Other company, product, and service names, which may
be denoted by a double asterisk (**), may be trademarks
or service marks of others.

117

IBM



Part Number: 09N1033
Printed in U.S.A.

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