WANG

8101

PROFESSIONAL COMPUTER

Model:

PC 280

COMPANY PROPRIETARY STATEMENT
This document is the property of Wang Laboratories, Inc. All information contained herein is considered Company Proprietary, and its use
is restricted solely to assisting you in servicing Wang products. Neither
this document nor its contents may be disclosed, copied, revealed, orused in whole or in part for any other !>Urpose without the prior written
permission of Wang Laboratories, Inc. 1 his document must be returned
upon request of Wang Laboratories, Inc.

Customer Engineering
Product Maintenance Manual
COMPANY CONFIDENTIAL

741-1771

PREFACE
This document is the Illustrated Product Maintenance Manual for the Wang PC
280 computer. The manual's purpose is to provide the CustoMer Engineer withinformation to install. operate, troubleshoot, and repair the PC 280 computerin the field.

First Edition (February, 1987)
This is the first edition of the PC 280 Product Maintenance Manual. The
material in this document may only be used for the purpose stated in the
preface. Updates and/or changes to this document will be published as Publication Update Bulletins (PUBs) or subsequent revised editions.

© Copyright 1987 by Wang Laboratories, Inc.

741-1771

Page ii

COMPANY CONFIDENTIALTABLE OF CONTENTSSECTION 1
INTRODUCTION
Page

1-1

1.1

SCOPE AND PURPOSE

1 .2

ORGANIZATION AND LAYOUT .. .. .. .. . .. . .. .. .. .. .. .. .. .. . .. .. .. . .. .. . .. .. .. . 1-2•

111111111111I111II111I111I11IIIII11111I11111111 I

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SECTION 2
IDENTIFICATION
Page

2. 1

MAJOR ARSEMBLIES . .. . .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. . .. .. . .. .. .. .. .. .. .. .. .. . 2-1

2.2

ELECTRONICS ENCLOSURE MAJOR PARTS ........................... 2-2

2.3

WORKSTATION MONITOR MAJOR PARTS .............................. 2-3

741-17?1

Page iii

COMPANY CONFIDENTIALTABLE OF CONTENTSSECTION 3
CONTROLS AND INDICATORS
Page

3.1

OPERATOR CONTROLS ................................... ....................... 3-1

3 .1 . 1
3. 1 .2
3. 1 .3
3.1.4
3. 1 .5

Electronics Enclosure Front Panel Controls .. .. .. .. .. . .. . .. .. . .. ..
Electronics Enclosure Rear Panel Controls . .. ... . .. .. .. . .. .. .. .. ..
Workstation Monitor Controls: Front ... . .. .. .. . .. .. .. . .. . .. .. .. .. . ..
Workstation Monitor Controls: Rear ................ .................
Workstation Keyboard Controls .. . .. .. .. .. .. ... .. .. .. .. . .. . .. . .. .. . .. ..

3.2

OPERATOR INDICATORS ........................................................ 3-6

3.2.1
3.3

Electronics Enclosure Front Panel Indicators .... . .. .. .. .. .. . .... . 3-6
SERVICE CONTROLS .. .... .. . .. . .. .. .. .. .. .. .. .. . .. .. . .. . .. . .. .. .. . .. .. .. .. .. .. .. . 3-7

3.3.1
3.3.2

Electronics Enclosure: CPU Board Controls ..... ..... .. .... ..... . 3-7
Electronics Enclosure: Winchester/Floppy Diskette
Controller Board Controls .. . . . . . . . . . . . . . . .. . . . . . . . . .. .. . . . . . . . . . . . . . . .. . . 3-8
Electronics Enclosure: Monochrome/Color Video Board ..... . 3-9
Electronics Enclosure: Wang Local Office Connection[WLOC] Board Controls . . .. . . . . . . . . . . . . . . .. . . . .. . . . ... . . . . . . . . . . .. . . . . . 3-10
Electronics Enclosure: Synchronous/Asynchronous Board
Controls . . .. . . . . .. . . . . .. . . . ... . . . .. . . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 3-11
Electronics Enclosure: Expanded Memory Board Controls . 3-12

3.3.3
3.3.4
3.3.5
3.3.6
3.4

3-1
3-2
3-3
3-4
3-5

SERVICE INDICATORS .... ...................... ...... ................ ...... .... 3-13

3.4.1
3.4.2

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CPU Board: Power Supply DC Voltage Test Points ..... .... 3-13
CPU Board: Monitor and Keyboard Voltage Test Points .. 3-14

Page iv

COMPANY CONFIDENTIALTABLE OF CONTENTSSECTION 3
CONTROLS AND INDICATORS (CONT.)
Page

3.4.3
3.4.4

Floppy Drive Voltage Test Points .. .. .. .. . .. .. .. .. .. .... .. .... .. . .... 3-15
Winchester Drive Voltage Test Points .... . ...... .... . ...... ...... 3-16

SECTION 4
OPERATION
Page

4.1

POWER-UP AND 8.1.T. DIAGNOSTIC PROCEDURE .................. 4-1

4.2

POWER-DOWN PROCEDURE .................................................. 4-3

SECTION 5
PREVENTIVE MAINTENANCE
Page

5.1

PM SCHEDULE .. . .. .. .. .. .. .. .. .. .. .. .. . .. . .. .. .. .. . .. .. .. .. .. .. . .. . .. .. .. . .. . .. .. .. 5-1

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Page vCOMPANY CONFIDENTIALTABLE OF CONTENTSSECTION 6
TROUBLESHOOTING
Page

6.1

TOOLS AND EQUIPMENT .. .. .. ... . .. .. .. .. .. . .. .. .. .. .. .. . .. . .. .. .. . .. .. .. .. .. . 6-1

6.2

POWER-UP DIAGNOSTIC (BUILT-IN TEST) .............................. 6-2

6.2.1
6.2.2
6.2.3
6.3

Built-In Test (B.l.T.) Description ........................................ 6-2
B.l.T. Error Messages ...................................................... 6-3
B.I. T. Error Beep Codes .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. . .. .. .. .. .. . 6-5
DIAGNOSTIC UTILITY .............................................................. 6-7

6. 3. 1
6.3.2
6.4

Diagnostic Utility Description . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . 6-7
Running 1.2MB Diskette Diagnostic Utility ........................ 6-8
TROUBLESHOOTING STRATEGY ............................................. 6-9

SECTION 7
REPAIR
Page

7.1

TOOLS AND TEST EQUIPMENT .............................................. 7-1

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Page vi

COMPANY CONFIDENTIALTABLE OF CONTENTSSECTION 7
REPAIR (CONT.)
Page

7.2

REMOVAL PROCEDURES ....................................................... 7-2

7.2.1
7.2.2
7 .2.3
7.2.4
7. 2. 57. 2. 6
7.2.7
7. 2. 87 .2.9Unfastening Electronics Enclosure Top Cover Screws .. .. .. .. 7-2
Electronics Enclosure Top/Front Cover Removal ................ 7-3
General Board Removal .. . .. .. .. .. . .. .. .. .. . .. .. .. .. . .. .. .. .. .. .. .. .. . .. . .. 7-4
Floppy Diskette Drive Removal ......................................... 7-6
Winchester Disk Removal . . . .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . 7 -8Power Sup ply Removal .. .. .. .. .. .. .. .. . .. . .. .. . .. .. .. . .. .. . .. .. .. . .. .. . .. .. 7 -9
CPU Board Removal ....................................................... 7-12
Lithium Battery Removal . . . .. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .. . . . . . . .. . . . . 7-1 5
Speaker Removal .. . .. .. . ..... ..... .. . .. .. ... . ...... ... ....... ....... ........ 7-16

SECTION 8
ADJUSTMENTS
Page

8.1

TOOLS AND EQUIPMENT . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. . .. .. .. . .. . 8-1

8.1.1
8.2

Special Tools .................................................................... 8-1
MECHANICAL ADJUSTMENTS ................................................ 8-2

8.2.1

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Mating Arm Adapter Plate to Monitor Arm ...................... 8-2

Page vii

COMPANY CONFIDENTIALTABLE OF CONTENTSSECTION 9
UNPACKING AND SETUP
Page

9.1

TOOLS ANO EQUIPMENT .. .. ...... .... .. .... ..... ... .. .... .. .... ...... ...... ... 9-1

9.2

UNPACKING PROCEDURES . .. .. . .. .. .. .. .. .. .. . .. .. .. .. . .. .. .. .. .. .. .. .. . .. .. . 9-2

9.2.1
9.2.2
9. 2. 3
9.3

Unpacking and Inspecting Electronics Enclosure . . . . ... . . .. . . . . . . 9-2
Unpacking Workstation Monitor .. .. .. .. .. .. .. .. . .. .. ... .. .. .. .. .. .. .. .. 9-3
Options Overpack Box . . . .... . . .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .. . . . . 9-4
SWITCH SETTINGS AND JUMPERS .. .. .. .. .. . .. .. .. .. .. .. .. .. .. . .. .. .. .. .. 9-5

9.3.1
9.3.2
9.3.3
9.3.4
9.3.5
9.3.6
9.3.7
9.3.8
9.3.9
9.3.109.3.11
9.3.12741-1771

Electronics Enclosure Line Voltage Select Switch . . . . . . . .. . . . . 9-5
CPU Board: Monitor Adapter Switch .. .. .. . .. . .. .. . .. .. .. . .. .. .. .. .. 9-6
CPU Board: Serial and Parallel Port Switch Settings . . . . . . . . 9-7
Monochrome/Color Video Board: Switch Settings . . .. . . . .. . . . . . 9-8
Monochrome/Color Video Board: Jumper Locations . . . . . .. . . 9-10
Winchester Disk/Floppy Diskette Controller Board:
Switch Settings . .. . . . .. . . . .... . . . ... . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 9-11
Winchester Disk/Floppy Diskette Controller Board:
Jumper Locations . . . . . . . . . .... . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 9-12
Wang Local Office Connection (WLOC) Board
Switch Settings . .. . . . .. . . . .... . . . ... . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 9-13
Wang Local Office Connection Board: Jumper Locations .. 9-14
Synchronous/ Asynchronous Communications Board:
Switch Settings . . . . .. . . ... . . . . ... . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 9-15
Synchronous/ Asynchronous Communications Board:
Jumper Locations . . . . . . . . .. . . . . ... . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . . . . . . . . . 9-16
Expanded Memory Board: Switch Settings . . . . . . . . . . . . . . . .. .. . 9-17

Page viii

COMPANY CONFIDENTIAL

··--

-

-------------------TABLE OF CONTENTSSECTION 9
UNPACKING AND SETUP (CONT.)
Page

9.4

CONNECTIONS . . . . . . . . . . . . . . . . .. . . . . .. . . . . .. . . . .. . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . .. . . 9-24.

9.4.1
9 .4. 2
9.4.3
9.4.4
9 .4. 5

Electronics Enclosure: Board Locations . .. .. .. .. .. .. ..... .... .....
Winchester Disk/Floppy Diskette Cabling Connections .. . ..
Electronics Enclosure: 1/0 Connections ..... ...... ................
Electronics Enclosure: AC Power Connection .. ................
Monochrome Monitor Connections . .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .

9.5

VOLTAGE CHECKS .. .. .. .. .. .. .. ... .. .. . .. . .. . .. . .. .. .. . .. .. .. .. .. . .. .. . .. .. .. .. . 9-30

9.5.1
9. 5. 2
9.5.3
9.5.4

CPU Board: DC Voltage and Ripple Checks .. .. . .. .. .. . .. . .. .. ..
CPU Board Rear Panel: Monitor and Keyboard DC
Voltage and Ripple Checks .. .. . .. .. . .. .. .. .. .. .. . .. . .. .. .. .. .. .. .. .. .. .
Floppy Diskette Drive: DC Voltage and Ripple Checks .....
Winchester Disk Drive: DC Voltage and Ripple Checks ....

9.6

INSTALLING OPTIONS ... ..... ...... ...... . ..... ................ ..... ....... .... 9-34

9.6.1
9.6.2
8.6.3
9. 6. 4
9.6.5
9.6.6
8.6.7

80287 Coprocessor Installation .. .... .. .. .. .. .. .. ... . .... .. .... .. ....
Option Board Installation .... .. .... .. .... .. .... .. .. .. .. .. .... .. ... .. .. .. .
Floppy Diskette Drive "B" Installation . .. ... .. .. .. .... .. .... .. ....
Winchester Drive "C" Installation .. .. .. .. .. .. . .. .. .. . .. .. .. .. . .. .. ..
Full-Height Winchester Drive "D" Installation .. .... .. .... .. ... .
Half-Height Winchester Drive "D" Installation .. .... .... .. .....
Installing Single In-Line Memory Module (SIMM) ........ ......

741-1771

Page ix

9-24
9-25
9-26
9-28
9-29

9-30
9-31
9-32
9-33

9-34
9-35
9-36
9-37
9-38
9-39
9-40

COMPANY CONFIDENTIALTABLE OF CONTENTSSECTION 9
UNPACKING AND SETUP (CONT.)
Page

9.7

SOFTWARE INSTALLATION .. ...... ...... .... .. .... .... .... ...... ...... ...... . g..41

9.7 .1
9. 7. 2INSTALL Program: Description .. .......... .............. ...... ...... . 9-41
Preparing Winchester Drive . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 9-42

SECTION 10
FUNCTIONAL DESCRIPTION(Unavailable at present time)

SECTION 11
SPECIFICATIONS
Page

11.1

HARDWARE . . . .. . . . .. . . . . ... ..... .... .. . .... ..... ....... ..... ... ......... ... ...... 11-1

741-1771

Page xCOMPANY CONFIDENTIALTABLE OF CONTENTSSECTION 12
ILLUSTRATED PARTS
Page

12.1

SYSTEM COMPONENTS . .. . .. . .. . . .... . . ..... . ... . . . .. .. . . . .. . .. .. . . .. . . ... . 12-1

741-1771

Page xi

COMPANY CONFIDENTIAL

SECTION 1 CONTENTSSECTION 1
INTRODUCTION
Page

1.1

SCOPE AND PURPOSE

1.2

ORGANIZATION AND LAYOUT ................................................ 1-2

741-1771

111111111111111111111111111111111III11111IllI11111111111 I

I

1-1

COMPANY CONFIDENTIAL

1.1

INTRODUCTION
Scope and Purpose

This manual contains installation,
operation, troubleshooting, and repair
information for the Wang PC 280
IBM-compatible computer.
The manual's purpose is to provide
Customer Engineering personnel with
the information necessary to installand repair the PC 280 computer inthe field.

. 741-1771

Page 1-1

COMPANY CONFIDENTIAL

1.2 Organization and Layout

INTRODUCTION

Each section of this manual describes
a separate maintenance subject.
Every section is preceded by the section number and a section table ofcontents. Within each section, information pertaining to a specific task is
contained in a frame or frames. Eachframe comprises illustrations, numbered steps, and/or text to describe
the actions required to accomplish
each task. References to otherframes are indicated by an arrow
followed by the section number(s)being referenced. The manual's sections and frames are arranged innumerical sequence from left-to-rightand from top-to-bottom on the microfiche cards.

r• ),741-1771

Page 1-2

COMPANY CONFIDENTIAL

SECTION 2 CONTENTSSECTION 2
IDENTIFICATION
Page

2.1

MAJOR ASSEMBLIES . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2

ELECTRONICS ENCLOSURE MAJOR PARTS .. .. .. .. .. .. .. .. .. .. .. . .. .. 2-2

2.3

WORKSTATION MONITOR MAJOR PARTS .... .......................... 2-3

741-1771

COMPANY CONFIDENTIAL

2 .1

IDENTIFICATION
Major Assemblies

ELECTRONICSENCLOSUREMONITOR

741-1771

Page 2-1

COMPANY CONFIDENTIAL

2.2

IDENTIFICATIONElectronics Enclosure Major Parts

POWER SUPPLY

1.2 MB FLOPPYDISK DRIVE

POWER ON/OFF BUTTONCPU BOARD

WINCHESTER DISKKEYLOCK

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Page 2-2

COMPANY CONFIDENTIAL

2 .3

IDENTIFICATIC!NWorkstation Monitor Maior Parts

CRT MONITOR SCREEN
MONITOR POWER AND
BRIGHTNESS CONTROL KNOB
(POWER 01\1:: PRESS SO BUTTONPROTRUDES-GREEN RINGENCIRCLING INSIDE OF
BUTTON WILL SHOW)PHILLIPS SCREW(CONTROLS TENSIONOF TILT CONTROLSTICK)
CONTRASTCONTROLKNOB

TILT CONTROL
STICK

741-1771

Page 2-3

COMPANY CONFIDENTIAL

SECTION 3 CONTENTSSECTION 3
CONTROLS AND INDICATORS
Page

3.1

OPERATOR CONTROLS .......................................................... 3-1

3. 1 . 1
3. 1 .2
3.1.3
3.1 .4
3. 1 .5

Electronics Enclosure Front Panel Controls . .... . . .... . ... . . . ... . .
Electronics Enclosure Rear Panel Controls . . .... . .... . . .. .. . .... . .
Workstation Monitor Controls: Front .. .. ..................... .......
Workstation Monitor Controls: Rear .. .. .. .. .. . .. .. . .. .. .. .. .. .. .. .. .
Workstation Keyboard Controls .. .. .. .. .. .. ... ... . .. .. . .. .. .. .. .. . .. .. .

3.2

OPERATOR INDICATORS ........................................................ 3-6

3.2.1
3.3

Electronics Enclosure Front Panel Indicators .. .. .. . .. .. .. .. . .. .. . 3-6
SERVICE CONTROLS . ............................................ ..... ..... ....... 3-7

3.3.1
3.3.2

Electronics Enclosure: CPU Board Controls .......... ............ 3-7
Electronics Enclosure: Winchester/Floppy Diskette
Controller Board Controls ... . . ... . . .. . .. ... . . . ... . . .... . . .... . .. .. . . .... . 3-8
Electronics Enclosure: Monochrome/Color Video Board ..... . 3-9
Electronics Enclosure: Wang Local Office Connection(WLOC) Board Controls . . ... . . ... . . .. . . .... . . . .. .. . .... . ..... . . ... . . ... 3-10
Electronics Enclosure: Synchronous/Asynchronous
Board Controls . . . ..... . .... . . ... . . ... . . .. .. . ... . . . ... .. .... . . .... . .. .. . . ... 3-11
Electronics Enclosure: Expanded Memory Board Controls . 3-12

3.3.3
3.3.4
3. 3. 5
3.3.6
3.4

3-1
3-2
3-3
3-4
3-5

SERVICE INDICATORS .......................................................... 3-13

3.4.1

741-1771

CPU Board: Power Supply DC Voltage Test Points .. .. .. . .. 3-13

COMPANY CONFIDENTIAL

---------------------SECTION 3 CONTENTSSECTION 3
CONTROLS AND INDICATORS
Page

3.4.2
3.4.3
3.4.4

741-1771

CPU Board: Monitor and Keyboard Voltage Test Points .. 3-14
Floppy Drive Voltage Test Points .................................... 3-15
Winchester Drive Voltage Test Points .............. .............. 3-16

COMPANY CONFIDENTIAL

3 .1 ~?r~!~o~~~ AND INDICATORS
3.1.1 Electronics Enclosure Front Panel Controls

Item

Name

Type and Function

1

Power On/Off
ButtonPush button; applies or removes power fromsystem, initiates B.l.T. power-up diagnostics
and Initial Program Load.

2

Keylock

Locked position -- prevents removal of top/
front cover and locks keyboard. Unlocked
position -- permits removal of top/front
cover and allows keyboard communication
with system.

741-1771

Page 3-1

COMPANY CONFIDENTIAL

3 _1 ~?r!~~0~~~ AND INDICATORS
3.1.2 Electronics Enclosure Rear Panel Controls

115 Vac shown
Item

Name

Type and Function

1

Voltage SelectSwitchSlider-type switch; selects ac operating
voltage of 115V or 22DV (determined byavailable line voltage].

741-1771

Page 3-2

COMPANY CONFIDENTIAL

3. 1 !?r~~~o~~~ AND INDICATORS
3.1.3 Workstation Monitor Controls: Front

Item

Name

Type and Function

1

Power Buttonand Brightness
ControlPush-button, potentiometer-type control:
applies and removes power from monitor andadjusts display brightness.

741-1771

Page 3-3

COMPANY CONFIDENTIAL

3 _1 ~?r~~~o~~~ AND INDICATORS
3.1.4 Workstation Monitor Controls: Rear

D

a
Item

Name

Type and Function

1

Contrast Control

Potentiometer-type control; adjusts contrast of monitor display.

2

Tilt Control Screw

Phillips-head screw; adjusts spring-loaded
tension of monitor tilt control stick.

3

Tilt Control Stick

Variable-length stick; may be adjusted toalter angle of monitor screen.

741-1771

Page 3-4

COMPANY CONFIDENTIAL

3 . 1 CONTROLS AND INDICATORS
Operator Controls

3.1.5 Workstation Keyboard Controls

0

Item

Name

Type and Function

1

Keyboard Tilt
Controls

Potentiometer-type controls; adjusts keyboard tilt and height.

2

Keyboard ModeControl

Slider-type switch; sets keyboard compatibility mode (AT or PC XT).

3

Keyboard Clicker
Control

Potentiometer-type control; adjusts volume
of keystroke clicking when keys are pressed.

741-1771

Page 3-5

COMPANY CONFIDENTIAL

3 .2 ~?r~~~~~~s AND INDICATORS
3.2.1 Electronics Enclosure Front Panel Indicators
0

D

D
Item

Name

Type and Function

1

1 .2MB Floppy
Diskette Drive
Activity LED

LED (amber): illuminates to indicate activity
on floppy diskette drive.

2

360KB Floppy
Diskette Drive
Activity LED

LED (red); illuminates to indicate activity on
floppy diskette drive.

3

Winchester Disk
Drive Activity
LED

LED (red); illuminates to indicate activity on
Winchester drive.

4

System PowerLED

LED (green); illuminates when power 1s
applied to system.

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Page 3-6

COMPANY CONFIDENTIAL

3 .3 ~~i~~~~0~S AND INDICATORS
3.3.1 Electronics Enclosure: CPU Board Controls

•

a
Item

Name

Type and Function

1

Serial Port
Switch (L 17)

Rocker-type, 4-bit switch bank: used todesignate/disable serial port.

2

Parallel Port
Switch (L 18)

Rocker-type, 4-bit switch bank: used todesignate/disable parallel port.

3

Monitor
Adapter Switch

Two-position slide switch: specifies monochrome or color monitor operation (not used
when monochrome/color video board configured with system).

741-1771

Page 3-7

COMPANY CONFIDENTIAL

3 _3 ~~i~~~~0~S AND INDICATORS
3.3.2 Electronics Enclosure: Winchester/
Floppy Disk Controller Board Controls

Item

Name

Type and Function

1

Drive Control
Switch (SW 1)

Slider-type, 8-bit switch bank; may be set
so board controls Winchester and floppy
drives, or Winchester only (switch not present on controllers in early PC280 units).

741-1771

Page 3-8-------------------COMPANY CONFIDENTIAL-

3 .3 Service Controls

CONTROLS AND INDICATORS

3.3.3 Electronics Enclosure: Monochrome/
Color Video Board

Type and Function

Item

Name

1

Monitor Identification 6-bit, rocker-type switch bank: designates
Switchtype of workstation monitor used (monochrome, standard color, enhanced color).

741-1771

Page 3-9

COMPANY CONFIDENTIAL

3 .3 ~~i~~~~:s AND INDICATORS
3.3.4 Electronics Enclosure: Wang Local Office Connection(WLOC) Board Controls

,_.,
4:.

I

Item

Name

Type and Function

1

PCB Address
Switch (SW1)10-bit, rocker-type switch; sets board
address.

2

PROM Enable
Switch (SW2)5-bit, rocker-type switch; enables/disables
PROM, and sets PROM address.

3Interrupt Jumper

11-position jumper: sets interrupt level.

741-1771

Page 3-10

COMPANY CONFIDENTIAL

3 .3 ~~i~~~~~S AND INDICATORS
3.3.5 Electronics Enclosure: Synchronous/Asynchronous
Board Controls;:~ ·~·. ·.. ·· .

>:~. ... f'.;
·.'

.

•

..~ 'I.

. -

,

. •i

. .. .

'

• «

.

.

•

1·

~

Item

Name

Type and Function

1

Serial Port Address
Switch (SW 1)

10-bit, rocker-type switch; setssynchronous/asynchronous serial port bus
1/0 address.

2

Asynchronous
Serial Port andInterrupt Level
Switch (SW1 A)

4-bit, rocker-type switch; sets bus 1/0
address and interrupt level for asynchronous serial port.

741 .. 1111

Page 3-11

COMPANY CONFIDENTIAL

3 .3 ~~i~~~~0~S AND INDICATORS
3.3.6 Electronics Enclosure: Expanded Memory
Board Controls

Item

Name

Type and Function

1

Hex. Address
Switch (SW1)10-bit, rocker-type switch: sets board hex.
address.

2

Existing
MemorySwitch (SW2)8-bit, rocker-type switch: set to correspondto amount of memory present in system
prior to installing expanded memory board.

3

MemoryAllocation
Switch (SW3)8-bit, rocker-type switch: used to allocate
expanded memory as non-paged and paged
memory.

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Page 3-12

COMPANY CONFIDENTIAL

3.4.1 CPU Board: Power Supply DC Voltage Test Points-12V

D J21 Connector test points

Item

Name

Type and Function

1

Power Supply
DC Voltage
Test Points (J21)

Connector on CPU board; voltage test
points for checking power supply voltages.

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Page 3-13

COMPANY CONFIDENTIAL

3. 4 ~~i~~n~~t~! AND INDICATORS
3.4.2 CPU Board: Monitor and Keyboa1•dVoltage Test Points

D J3 CONNECTOR ON CPU
BOARD.

Item

Name

Type and Function

1

Monitor andKeyboard
Voltage Test
Points (J3)

Connector on CPU board; voltage test
points for checking keyboard voltage (+5V)
and monitor voltage (+12V).

741-1771

Page 3-14

COMPANY CONFIDENTIAL

3.4.3 Floppy Drive Voltage Test Points

Item

Name

Type and Function

1

Floppy Drive
Voltage Test
PointsPower cable connector on floppy drive: voltage test points for checking floppy drive
voltages (+5V, +12V).

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COMPANY CONFIDENTIAL

3 .4 ~~i~~n~~t~~ AND INDICATORS
3.4.4 Winchester Drive Voltage Test Points

D

Item

Name

Type and Function

1

Winchester
Drive Voltage
Test Points

Power cable connector: voltage test points
for checking Winchester drive voltages(+5V, +12V).

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COMPANY CONFIDENTIAL

SECTION 4 CONTENTSSECTION 4
OPERATION
Page

4.1

POWER-UP AND 8.1.T. DIAGNOSTIC PROCEDURE .................. 4-1

4.2

POWER-DOWN PROCEDURE .................................................. 4-3

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COMPANY CONFIDENTIAL

OPERATION

4.1 (Sheet 1 of 2) B.l.T. Diagnostic Procedure
Power-Up and

0 Set power and monitor brightness

control to "out" setting (green ringaround power and brightness
control shows).

fJ Turn key clockwise to unlocked
position.

fJ Insert diskette into floppy drive"A" if starting from floppy drive;
leave floppy drive door( s) open
if starting system from
Winchester drive.

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Page 4~1

COMPANY CONFIDENTIAL

4.1

OPERATION
Power-Up and B.l.T. Diagnostic Procedure(Sheet 2 of 2)

8 Press electronics enclosure

power-on/off button; green
power-on LED illuminates next topower-on/off button andworkstatiion automatically cycles
through diagnostic built-in tests.
(To bypass memory diagnostics,
press keyboard space bar.)

8 Enter date and time.
0 Power-on peripherals.
NOTE
Upon successful B. I. T. completion,system generates one beep andstart-up screen appears on monitor,
followed by date and time display.
If an error occurs during power-up,
a message shows on monitor screen
and/or speaker emits a beep code
(refer to section 6).

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COMPANY CONFIDENTIAL

4 .2

OPERATION
Power-Down Procedure

CAUTIONTo ensure file integrity, exit fromprogram: i.e., cancel back to main
menu before executing power-down
procedure.

D Power-off peripherals.
fl Press power-on/off button onelectronics enclosure: green LED
next to power-on/off control
extinguishes.

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Page 4-3

COMPANY CONFIDENTIAL

SECTION 5 CONTENTSSECTION 5
PREVENTIVE MAINTENANCE
Page

5.1

PM SCHEDULE . ... . . ... . .. .. . . .. .. .. . . ... . .. . . . . .. . . ... . . ... .. ..... .. ... . . . .. . . ... . . 5-1

741-1771

COMPANY CONFIDENTIAL

5.1

PREVENTIVE MAINTENANCE
PM Schedule

Replace the lithium battery every two
years (• 7 .2.8).

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Page 5-1

COMPANY CONFIDENTIAL

SECTION 6 CONTENTSSECTION 6
TROUBLESHOOTING
Page

6.1

TOOLS AND EQUIPMENT .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 6-1

6.2

POWER-UP DIAGNOSTIC (BUILT-IN TEST) .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 6-2

6.2.1
6.2.2
6.2.3
6.3

Built-In Test (8.1.T.) Description .. .. .. .. .. . .. .. .. .. .. . .. .. .. .. .. .. .. .. .. 6-2
B.l.T. Error Messages .. .. ... .. .. .. ... . .. .. . .. .. . .. .. . .. .. . .. .. .. .. .. .. ... .. 6-3
B.l.T. Error Beep Codes ..... . .. .. .. .. .. .. . .. .. ... .. . .. .. ... .. .. .. .. .. ... .. 6-5
DIAGNOSTIC UTILITY ... .. . .. .. . . .... . . ..... .. .. . . .. .. . .. .. . .. .. . . . .. . . .... . . .... . . 6-7

6.3.1
6.3.2
6.4

Diagnostic Utility Description .. .... .. .. . .. .. . .. .. ... .. .. .. .. ...... .. .... . 6-7
Running 1.2MB Diskette Diagnostic Utility ...... .................. 6-8
TROUBLESHOOTING STRATEGY .. .. . .. . .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. . 6-9

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COMPANY CONFIDENTIAL

6 .1

Tools andEquipm!~QUBLESHOOTING

Equipment and tools required totroubleshoot the PC 280 computer
include: a standard CE tool kit, a
DVM, and diagnostic test routines.
The diagnostic routines are containedon diskettes and should be used whentroubleshooting at the customer'ssite as an aid in isolating system problems.

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COMPANY CONFIDENTIAL

6.2 Power-Up Diagno!~~~~~~~IHOOTING
6.2.1 Built-In Test (B.I. T.) Description
The built-in test (8.1.T.) checks basic
system hardware and provides fatal
and non-fatal error indications thatallow isolation of subassembly failures. The 8.1. T. executes automatically when the PC 280 is powered-on.
Invalid configuration data or hardware
malfunctions are displayed on themonitor screen (•6.2.2) or· as audible
codes generated by the systemspeaker (•6.2.3).

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Page 6-2

COMPANY CONFIDENTIAL

6 .2

TROUBLESHOOTINGPower-Up Diagnostic [Built-In Test)

6.2.2 B.l.T. Error Messages (Sheet 1 of 2)
B.I. T. Error Message

Suspected Failure

Diskette drive 0 seek totrack 0 failed

Floppy drive

Diskette drive reset failed

Floppy drive

Diskette read failure -strike F1 to retry bootFloppy drive, drive cable

Display adapter failed:using alternate

Video board

Gate A20 failure

CPU board

Hard disk controller failure

Winchester/floppy controller board

Hard disk failure

Winchester drive cables, Winchester
drive

Hard disk read failure -strike F1 to retry bootWinchester cables, Winchester drive

Invalid configuration information -please run SETUP program

Lithium battery

Keyboard clock line failure

Keyboard

Keyboard controller failure

CPU board

Keyboard data line failure

Keyboard

Keyboard stuck key failure

Keyboard

Memory address line failure at
XXXXX, read XXXXX
expecting XXXXX

CPU board, expanded memory board

Memory data line failure at
XXXXX, read XXXXX
expecting XXXXX

CPU board, expanded memory board

Memory high address line failure
at XXXXX

CPU board, expanded memory board

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COMPANY CONFIDENTIAL

6 .2 Power-Up Diagno!~~~~~~~IHOOTING
6.2.2 B.l.T. Error Messages (Sheet 2 of 2)
B.I. T. Error Message

Suspected Failure

Memory odd/even logic failure
at XXXXX, read XXXXX
expecting XXXXX

CPU board, expanded memory board

Memory parity failure at XXXXX

CPU board, expanded memory board

Memory write/read failure
at XXXXX, read XXXXX
expecting XXXXX

CPU board, expanded memory boarn

No boot device available -strike F1 to retry bootWinchester/floppy drive cables

No boot sector on hard disk -strike F1 to retry bootWinchester drive (format), drive
cablesNo timer tickCPU board

Not a boot diskette -strike F1 to retry bootDiskette

XXXXX optional ROM badchecksum = XXXXXBIOS PROM on CPU board

Shutdown failure

CPU board

Time-of-day clock stopped

CPU board

Timer chip counter 2 failed

CPU board

Timer of interrupt controller bad

CPU board

Unexpected interrupt inprotected mode

CPU board

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Page 6-4

COMPANY CONFIDENTIAL

6.2.3 B.l.T. Errot• Beep Codes (Sheet 1 of 2)
B.1. T. Error Beep
Code Sequence

Suspected Failure

1-1-3

CPU board

1-1-4

BIOS PROM on CPU boaru

1-2-1

CPU board

1-?-2

CPU board

1-2-3

CPU board

1-3-1

CPU board

1-3-3

CPU board

1-3-4

CPU board

1-4-1

CPU board

1-4-2

CPU board

2-1-1

CPU board

2-1-2

CPU board

2-1-3

CPU board

2-1-4

CPU board

2-2-1

CPU board

2-2-2

CPU board

2-2-3

CPU board

2-2-4

CPU board

2-3-1

CPU board

2-3-2

CPU board741-1771

Page 6-5

COMPANY CONFIDENTIAL

6 .2

TROUBLESHOOTINGPower-Up Diagnostic (Built-In Test)

6.2.3 8.1.T. Error Beep Codes (Sheet 2 of 2)
B.I. T. Error Beep
Code Sequence

Suspected Failure

2-3-3
2-4-1
2-4-2
2-4-3
2-4-4
3-1-1
3-1-2
3-1-3
3-1-4
3-2-4
3-3-4
3-4-1
3-4-2
4-2-1
4-2-2
4-2-3
4-2-4
4-3-1
4-3-3
4-3-4

CPU board741-1771

CPU board
CPU board
CPU board
CPU board
CPU board
CPU board
CPU board
CPU board
CPU boardVideo board
Video board
Video board
CPU board
CPU board
CPU board
CPU board
Expanded memory board
CPU board
CPU board

Page 6-6

COMPANY CONFIDENTIALTROUBLESHOOTING

6 .3 Diagnostic Utility

6. 3 .1 Diagnostic Utility Description
The diagnostic utility is a diskettebased troubleshooting aid designed to
run with minimal user intervention.
Two versions of the diagnostic utility
are offered: a bootable 1.2MB diskette containing all available diagnostic
files: and a non-bootable 360KB diskette containing diagnostic files for one
specific option only.

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COMPANY CONFIDENTIALTROUBLESHOOTING

6 .3 Diagnostic Utility

6.3.2 Running 1.2MB Diskette Diagnostic Uti~ity

NOTESingle options ship with a 360KB
diskette that contains diagnostics forthat option only. The diagnostic can beloaded into the 1.2MB diskette.
1. Load diagnostic utility into 1.2MB
diskette drive and boot systemfrom diagnostic diskette (•4.1 ).
2. Press keyboard "y" key after disclaimer screen appears. Pressing"y" key causes test selection
screen to appear.
3. Use keyboard INSERT and
DELETE keys to deselectunwanted tests. (INSERT key
positions arrow in front of test to
be deselected; DELETE key deselects test.)
4. Press keyboard EXEC key. (While
test executes, test status information shows on screen.)

NOTE
If an error is detected, a message
specifying failed hardware appears on
screen. To continue running diagnostic
program, press EXEC key.
5. After system executes all selected
tests, comprehensive test resultsappear on screen. Press SHIFT
and CANCEL keys to exit diagnostic utility.

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COMPANY CONFIDENTIALTROUBLESHOOTING

6 .4 Troubleshooting Strategy (Sheet 1 of 3)
Fault Condition

Troubleshooting Action

Fan does not run after system
power-up and proper ac voltage
not present at input to power
supply.

• Check voltage at electrical outlet.
• Source voltage 0. K.: Check continuity of ac power cord: replace if bad• Source voltage incorrect: Tryanother outlet; if voltage still bad
inform customer.

Fan does not run after system
power-up and proper ac voltage
is present at input to power
supply.

• Unplug monitor cable from CPU
board: if fan runs replace monitor.
• If fan still does not run: Check forbad power button on electronics
enclosure.
• Replace power supply if power button operational.

B. I. T. fails after system
powered-on and error message
or beep code present.

• Refer to section 6.2.2 (error messages) or section 6.2.3 (error beep
codes).

B. I. T. fails after system
powered-on and no error messages
or beep codes present.

• Check all cable connections.
• Secure or replace cable(s).

B. I. T. fails after systern
powered--on, no error messages
or beep codes present, but all
cable connections O.K.

• Check voltages (•9.5).
•Voltages wrong: Replace power supply.
• Voltages correct: Check hardwarefor visible physical damage (e.g., bent
pins, broken components). Replacedamaged hardware.

B. I. T. fails after system
powered-on, no error messages
or beep codes present, and novisible damage to hardware.

• Remove all non-Wang option boards;
replace boa1·ds one-at-a-time until
faulty board isolated.

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COMPANY CONFIDENTIAL

6 .4

TROUBLESHOOTING
Troubleshooting Strategy (Sheet 2 of 3)

Fault Condition

Troubleshooting Action

B. I. T. fails after system
powered-on, no error messages
or beep codes present, no visible
damage to hardware, and removalof all non-Wang boards fails tocorrect problem.

• Remove all Wang boards except CPU
board.
• Replace CPU board if system does
not emit error beep codes.
• If system emits beep codes after all
Wang boards (except CPU board)
have been removed, replace Wangboards one-at-a-time until faulty
board isolated.

Diagnostic utility detects faulty
FRU.

• Check configuration of FRU (.. 9.3).
• Replace FRU if configuration correct.

Problem with system, anddiagnostic utility fails to detect
faulty FRU.

• If diagnostic menu contains tests for
all FRUs present, suspect software.
• If menu does not contain required
test[s): Are files for desired test(s)on utility? Yes -- check FRU 1/0
addresses: no -- replace diskette withdiagnostic that contains necessary
file(s).

System powered-on, B. I. T.
completes successfully, but
diagnostic menu does not appear
on monitor.

• Remove all option boards except
Winchester /floppy controller andvideo boo~ d.
• If diagnostic menu appears, replace
option boards one-at-a-time until
faulty board isolated.
• Check configuration of faulty board:
replace if necessary.

System powered-on, B. I. T.
completes successfully, but
diagnostic menu still does notappear, even after all option
boards (except Winchester/
floppy controller and video
board) are removed.

• Replace diskette in drive ''A'' withsystem diskette 1 . If MS-DOS loads
properly, diagnostic diskette was
faulty.

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Page 6-10

COMPANY CONFIDENTIAL

6 .4

TROUBLESHOOTING
Troubleshooting Strategy (Sheet 3 of 3)

Fault Condition

Troubles.,, ooting Action

Diagnostic menu does notappear after power-up and
MS-DOS does not load properly
even after drive ''A'' disketteis replaced by system diskette 1 .

If system contains Winchester drive:• Unplug drive ''A'' and boot from hard
disk.
• Replace diskette drive "A" if MS008 loads properly.
• Replace Winchester/floppy controller if MS-DOS does not load.
• Replace CPU board.
If system not configured with Winchester drive:• Swap diskette drive ' 'A'' and '' B''
cables, insert system diskette 1 into
drive '' B' ' and boot system.
• Replace diskette drive "A" if MSDOS loads properly.
• Replace Winchester/floppy controller if MS-DOS does not load properly.
• Replace CPU board.

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Page 6-11

COMPANY CONFIDENTIAL

SECTION 7 CONTENTSSECTION 7
REPAIR
Page

7.1

TOOLS AND TEST EQUIPMENT .............................................. 7-1

7.2

REMOVAL PROCEDURES ....................................................... 7-2

7.2.1
7.2.2
7. 2. 37 .2.47. 2. 57. 2. 6
7.2.7
7. 2. 87.2.9

741-1771

Unfastening Electronics Enclosure Top Cover Screws .. .. .. .. 7-2
Electronics Enclosure Top/Front Cover Removal ................ 7-3
General Board Removal . . .. . .. . ... .. ... .. . .. .. . .. . . . ... .. . . . .. .. .. . . . . .. .. . 7 -4
Floppy Diskette Drive Removal .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 7-6
Winchester Disk Removal .. . . . ... .. ... .. . .. .. . .. . . .. ... . . . . .. .. .. . . . . .. .. . 7 -8Power Supply Removal . .. . .. . . . ... . .... .. . . ... . . .. . . ... .. . . . .. .. .. . . . . .. .. . 7 -9
CPU Board Removal ....................................................... 7-12
Lithium Battery Removal ... . . . ... . .... .. . . ... . . .. . . ... .. . . . .. . ... . . . . .. . 7 -15
Speaker Removal ............................................................ 7-16

COMPANY CONFIDENTIAL

7 .1

REPAIR
Tools and Test Equipment•

Wang CE tool kit, P/N
726-9401•

Diagnostic disk, P/N 732-8098(package number 195-5537-9)

741-1771

Page 7-1

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2.1 Unfastening Electronics Enclosure Top Cover Screws

11 Power-down workstation ( •4.2).

IJ Unscrew Phillips-head screws
that secure top cover toelectronics enclosure.

8 Disconnect workstation ac

power cord (420-2040) frominlet.

,,

741-1771,,"

Page 7-2

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2.2 Electronics Enclosure Top/Front Cover Removal

8 Slide cover approximately 1 inch

D Power-down workstation( •4.2).
fl Unscrew top cover screws

toward front of electronics
enclosure.

(•7.2.1).

IJ Unlock keylcck: remove key.
Cl Gently lift cover to separate
from electronics enclosure.

741-1771

Page 7-3_____________.....___--COMPANY CONFIDENTIAL

7.2

REPAIR
Removal Procedures

7.2.3 General Board Removal (Sheet 1 of 2)

D Power-down workstation( •4.2).

IJ Unscrew top cover screws(• 7.2.1 ).

8

Remove top/front cover( ..7 .2.2).

11 Unscrew and remove Phillips-headscrew that secures board
fastening/access plate toelectronics enclosure.

BOARD FASTENING/
ACCESS PLATES

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Page 7-4

COMPANY CONFIDENTIAL

7.2

REPAIR
Removal Procedures

7 .2.3 General Board Removal (Sheet 2 of 2)

0 Lift board from CPU board
sockets.

8 Disconnect any connectors that
attach to board that is to be
removed.

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Page 7-5

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7.2.4 Floppy Diskette Drive Removal (Sheet 1 of 2)

D Power-down workstation (• 4.2).
fJ Unscrew top cover screws

IJ Disconnect grounding strap,

power cable, and data cable fromback of drive.

( .. 7.2.1).

IJ Remove top/front cover ( .. 7 .2.2).

741-1771

Page 7-6

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7.2.4 Floppy Diskette Drive Removal (Sheet 2 of 2)

U Press guide rails inward

and gently slide/pull drivecompletely out of enclosure.

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Page 7-7

COMPANY CONFIDENTIAL

7 .2

REPAIR
Ramoval Procedures

7 .2.5 Winchester Disk Removal

II Power-down workstation(• 4.2).
fJ Unscrew top cover screws

8 Disconnect grounding strap,

power cable, and data/control
cable from back of drive.

( .7.2.1 ).

8 Remove top/front cover ( • 7 .2.2).

..._,..,,...... ...

...... ...

... ...

D Press guide rails inward

.. ..

....

,

and pull drive nbout 1 inch out of
enclosure.

741-1771....

Cl Gently slide/pull drive completely

Page 7-8

out of enclosure.

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2.6 Power Supply Removal (Sheet 1 of 3)

11 Power-down workstation[• 4.2).
8 Unscrew top cover screws[ .. 7.2.1 ).

8 Remove enclosure top/front
cover [ •7 .2.2).

D Unscrew screws that secure ac
power cable to power supply.
Remove cable.

741-1771

Page 7-9

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2.6 Power Supply Removal (Sheet 2 of 3)

0 Disconnect power supply cablefrom CPU board connector J21 .

8 Disconnect power supply cablefrom connectors on rear of
floppy drives and Winchester
disk unit. (Disconnecting cablefrom these drives might requirepartial removal of drives fromenclosure ( • 7 .2.4, 7 .2.5).

741-1771

Page 7-10

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2.6 Power Supply Removal (Sheet 3 of 3)

0 Gently tilt power supply toward

front of enclosure and lift outof unit. (Tilting power supply
ensures that it does not catch on
enclosure rear plate as power
supply is lifted.]

~
I
I
I

I
I

D Unscrew and remove Phillips-headscrews in rear of chassis that
secure power supply toelectronics enclosure.

741-1771

Page 7-11

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2. 7 CPU Board Removal (Sheet 1 of 3)

D Power-down workstation ( •4.2).
8 Unscrew top cover screws

8 Disconnect monitor cable fromCPU board connector on rear
panel.

(.7.2.1).

IJ Remove top/front cover ( • 7 .2.2).
8 Remove option boards fromCPU board sockets (• 7.2.3).

0 Remove Phillips-head screw that
secures side of CPU board to
enclosure rear plate.

741-1771

Page 7-12

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2. 7 CPU Board Removal (Sheet 2 of 3...._--=-~~~--~~~~~~--: Disconnect power supply cable(220-2529) from CPU board
connector J21 .

D Disconnect lithium battery cablefrom CPU board connector J4.

D Disconnect keylock/speaker
cable harness (220-25231 fromCPU board connector J22.

TO SPEAKER

GD Disconnect speaker cable(220-2526) from CPU board
connector J23.

741-1771

Page 7-13

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2. 7 CPU Board Removal (Sheet 3 of 3)

Cf) Gently remove CPU board.

mthat
Remove Phillips-head screws
secure CPU board to bottomof enclosure.

741-1771

Page 7-14

COMPANY CONFIDENTIAL

7 .2

REPAIR
Removal Procedures

7 .2.8 Lithium Battery Removal

0 Power-down workstation ( It 4.2).
8 Unscrew top cover (It 7.2.1 ).
II Remove top/front cover (It 7 .2.2).
CAUTION
Disconnecting lithium battery cable
will result in erasure of CPU CMOS
RAM. Run SETUP program.

D Disconnect lithium battery

cable from CPU board connector

J4.

8 Pull battery away from velcro pad
on inside rear wall of electronics
enclosure.

741-1771

Page 7-15

COMPANY CONFIDENTIAL

---

7 .2

-

----

---------------------,REPAIR
Removal Procedures

7 .2.9 Speaker Removal

D Power-down workstation ( .. 4.2).
fJ Unscrew top cover screws( .. 7.2.1).

8 Remove top/front cover ( .. 7.2.2).

8 Remove board closest to

Winchester disk to access speaker
cable connector[ .. 7.2.3).

8 Disconnect speaker cable(220-2526) from CPU board
connector J23.

0 Unscrew and remove Phillips-headscrews (2) that secure speakerassembly to enclosure
front plate.

741-1771

Page 7-16

COMPANY CONFIDENTIAL

SECTION 8 CONTENTSSECTION 8
ADJUSTMENTS
Page

8.1

TOOLS AND EQUIPMENT .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 8-1

8.1.1
8.2

Special Tools .................................................................... 8-1

MECHANICAL ADJUSTMENTS .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 8-2

8.2.1

741-1771

Mating Arm Adapter Plate to Monitor Arm ...................... 8-2

COMPANY CONFIDENTIAL

8 .1

ADJUSTMENTS
Tools and Equipment

8 .1.1 Special Tools
Special equipment or tools are notrequired to perform adjustments on
the PC 280 computer.

741-1771

Page 8-1

COMPANY CONFIDENTIAL

-

8 .2

-- - -------------------

Mechanical Adiustments

ADJUSTMENTS

8.2.1 Mating Arm Adapter Plate To Monitor Arm
A simple mechanical adjustment
secures the arm adapter plate to themonitor arm. (The arm adapter plateconnects the workstation monitor tothe monitor arm.]

ARM ADAPTER PLATESLEEVEBELLOWS

D Sufficiently tighten locknut onbase underneath sleeve bellows.

741-1771

Page 8-2

COMPANY CONFIDENTIAL

SECTION 9 CONTENTSSECTION 9
UNPACKING AND SETUP
Page

9.1

TOOLS AND EQUIPMENT .. .. .. .. .. . .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 9-1

9.2

UNPACKING PROCEDURES .. . .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . 9-2

9.2.1
9. 2. 29. 2. 3
9.3

Unpacking and Inspecting Electronics Enclosure .. .. .. .. .. .. .. .. . 9-2
Unpacking Workstation Monitor .. .. .. .. .. .. ... . .. . .. .. .. .. .. .. .. .. . .. .. 9-3
Options Overpack Box . . . ... . . . . .. .. . .... . .. .. . ... . . . .. .. . .. . . . ... . . . .. .. . .. 9-4
SWITCH SETIINGS AND JUMPERS ........................................ 9-5

9.3.1
9. 3. 2
9.3.3
9.3.4
9.3.5
9.3.6
9.3.7
9.3.8
9.3.9
9.3.109.3.11
9.3.12741-1771

Electronics Enclosure Line Voltage Select Switch .. .. .. .. .. .. . 9-5
CPU Board: Monitor Adapter Switch .. .. .. .. . .. .. .. . .. ... .. .. .. . .. .. 9-6
CPU Board: Serial and Parallel Port Switi;h Settings . .. .. .. . 9-7
Monochrome/Color Video Board: Switch Settings .. .. .. .. .. .. .. 9-8
Monochrome/Color Video Board: Jumper Locations ......... 9-10
Winchester Disk/Floppy Diskette Controller Board:
Switch Settings ............................................................ 9-11
Winchester Disk/Floppy Diskette Controller Board:
Jumper Locations .. . .. . . . .. .. . . . .. ... . .... . .. .. . .. . .. . . ... .. . .. .. .. . . . . .. . . 9-12
Wang Local Office Connection (WLOC) Board
Switch Settings ............................ .......... ........ .............. 9-13
Wang Local Office Connection Board: Jumper Locations . . 9-14
Synchronous/Asynchronous Communications Board:
Switch Sett;ngs ... .. .. . . . . ... . . . .. .. .. ... . . . ... .... .. . .. .. . .. . . . ... . . . . .. . . 9-15
Synchronous/Asynchronous Communications Board:
Jumper Locations . . .. . . . .. . . . . . ... .. ... . . . .. . .... .. . .. .. . .. .. . ... . . . . .. . . 9-16
Expanded Memory Board: Switch Settings . . ... .. . . . .. .. . . . . .. . . 9-17

COMPANY CONFIDENTIAL

-

----

-------------SECTION 9 CONTENTSSECTION 9
UNPACKING AND SETUP
Page

9.4

CONNECTIONS ... . . ... ... . . . . . ... . . .. . .. .. . .. .. . .. .... . ... .. .. . .. . . ... . .. . . . .. .. .. . 9-24

9.4.1
8.4.2
9.4.3
9.4.4
9.4.5

Electronics Enclosure: Board Locations .. .........................
Winchester Disk/Floppy Diskette Cabling Connections .....
Electronics Enclosure: 1/0 Connections ....... .......... ..........
Electronics Enclosure: AC Power Connection ........ ..........
Monochrome Monitor Connections ...... ............................

9.5

VOLTAGE CHECKS ............................................................... 9-30

9.5.1
9.5.2
9.5.3
9.5.4

CPU Board: DC Voltage and Ripple Checks .....................
CPU Board Rear Panel: Monitor and Keyboard DC
Voltage and Ripple Checks .. .. .. .. .. .. .... . .... .. .. .. ...... .. .... .... ..
Floppy Diskette Drive: DC Voltage and Ripple Checks .....
Winchester Disk Drive: DC Voltage and Ripple Checks ....

9.6

INSTALLING OPTIONS ......................... .... ............ ........ ......... 9-34

9.6.1
9.6.2
9.6.3
9.6.4
9.6.5
9.6.6
9.6.7

80287 Coprocessor Installation .. .. .. .. .. .. .. .... .. .. .... .. .. .. .. .. ..
Option Board Installation .. .... .... .. .. .. .. .. .. .. .. .. .. .. .... .. .... .... ..
Floppy Diskette Drive "B" Installation .... .. .. .... .... .. .... .. .. ..
Winchester Drive "C" Installation .. .... .. .. .. .... .. .. .. .. .. .. .. .. .. .
Full-Height Winchester Drive "D" Installation .. .... .. .. .. .... ..
Half-Height Winchester Drive "D" Installation .. .. .. .. .. .. .. .. .
Installing Single In-Line Memory Module (SIMM) .. .. .. .. .. .. ..

741-177'1

9-24
9-25
9-26
9-28
9-29

9-30
9-31
9-32
9-33

9-34
9-35
9-36
9-37
9-38
9-39
9-40

COMPANY CONFIDENTIALSECTION 9 CONTENTSSECTION 9
UNPACKING AND SETUP
Page

9.7

SOFTWARE INSTALLATION ................................................... 9-41

9.7.1
9.7.2

741-1771

INSTALL Program: Description ....................................... 9-41
Preparing Winchester Drive ............................................ 9-42

COMPANY CONFIDENTIALUNPACKING AND SETUP

9.1 Tools and Equipment• Standard CE tool kit, P/N 726-9401• Digital multimeter• Customer-runnable diagnostic

741-1771

Page 9-1

COMPANY CONFIDENTIAL

9.2

UNPACKING AND SETUP
Unpacking Procedures

9.2.1 Unpacking and Inspecting Electronics Enclosure
1. Remove electronics enclosure
from shipping carton.
2. Inspect unit for external damage.
3. Remove electronics enclosure top/
front cover.
4. Inspect for internal damage andloose parts.
5. Remove shipping protector fromdiskette drives.

741-1771

Page 9-2

COMPANY CONFIDENTIAL

9.2

UNPACKING AND SETUP
Unpacking Procedures

9.2.2 Unpacking Workstation Monitor
1 . Remove monitor from shipping
carton.
2. Inspect unit for external damage.

741-1771

Page 9-3

COMPANY CONFIDENTIAL

9.2

UNPACKING AND SETUP
Unpacking Procedures

9.2.3 Options Overpack Box
The Options Overpack box can include:
Winchester disk and floppy diskette
drives, option boards, cabling, and keyboard country kit. (Keyboard country
kit contains keyboard, set-up utilities,
diagnostics, and literature.)741-1771

PEge 9-4

COMPANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.1 Electronics Enclosure Line Voltage Select Switch

0 Set electronics enclosure voltage
selection switch to correct line
voltage setting.(115/220 Vac).

115 Vac shown741-1771

Page 9-5

COMPANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.2 CPU Board: Monitor Adapter Switch
DRemove top/front cover ( • 7 .2.2).

NOTE
Monitor adapter switch is not used
when system is configured withmonochrome/color video board.

fl Slide two-position monitor

adapter switch to apropriate
setting (monochrome or color
video operation).

COLOR r.=;:::;i MONOCHROMEl§::JBD!Jrza

741-1771

Page 9-6=SWITCH POSITIONCOMPANY CONFIDENTIALUNPACKING AND SETUP

9.3 Switch Settings and Jumpers

9.3.3 CPU Board: Serial and Parallel Port Switch SettingsllRemove top/front cover ( • 7 .2.2).

fl Verify proper switch settings of
L 17 and L 18 switch banks.

L 17:
SERIAL COM. COM.
1
2
PORT

c:::::J
c:::::J
c:::::J
c:::::J

C§I
C§I

!!CJ
!!CJ

lii:J
lii:J

C§)
C§)

C§J
C§J
C§)
C§J

L 18:
PARALLEL LPT
PORT
1

LPT
2

PORT
DISABLED

C§)
c::§l

[§CJ
[§CJ

lii:J
lii:J

Oil
Oil

C§J
C§J
C§J
C§)

l=:J
c:::::J
c:::::J
c:::::J
12:1

741-1771

Page 9-7

PORT
DISABLED=SWITCH POSITIONCOMPANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.4 Monochrome/Color Video Board: Switch Settings(Sheet 1 of 2)llRen10ve top/front cover ( • 7 .2.2).

11 Verify proper switch settings.
WANG
MONOCHROME

NON-WANG
MONOCHROME

COLOR
COLOR
GRAPHICSGRAPHICS
ADAPTER
ADAPTER(40-COLUMN)(BO-COLUMN

8 Remove monochrome/color
video board ( •7 .2.3).

* Switch 5 enables/disables Autoswitch feature;c:::eJ = automatic mode switching
feature enabled,~= aL tomatic mode switching
1

feature disabled.

rza =SWITCH POSITION

741-1771

Page 9-8

COMPANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.4 Monochrome/Color Video Board: Switch Settings(Sheet 2 of 2)

ENHANCED
GRAPHiCS
ADAPTER- - - (200-LINE)

ENH.A.NCED

e:::J

C§]

e:::J
L~

I '"11
CEJ

GRAPHICSAOAPTC:R(350-LINE)

e:::J
CB!J
IBLJ
CB!J
CB!J
ISL]

* Switch 5 enables/disables Autoswitch feature;

CB!J = automatic mode switching
feature enabled,I§:] = automatic mode switching

feature disabled.
Ila=741-1771

Page 9-9

SWITCH PDSITIDl\J

COMPANY CONFIDENTIAL

9.3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.5 Monochrome/Color Video Board: Jumper Locations

0 Remove monochrome/color video
board ( • 7.2.3).

0 Verify proper jumper locations.

0Remove top/front cover ( • 7 .2.2).
P5

~
~
P2

741-1771

Page 9-10

COMPANY CONFIDENTIAL

9.3.6 Winchester Disk/Floppy Diskette Controller Board:
Switch Settings
DRemove top/front cover ( • 7 .2.2).

8 Verify proper switch settings.
12345678

DDDDDDDD
fl Remove Winchester disk/

floppy disk controller board( .7.2.3).

WINCHESTERORFLOPPY~~~~~~~~

WINCHESTER
ONLY~~~~~~~~

13 = SWITCH POSITION

741-1771

Page 9-11

COMPANY CONFIDENTIAL

-

9.3

-

- -

-------------UNPACKING AND SETUP
Switch Settings and Jumpers

9.3. 7 Winchester Disk/Floppy Diskette Controller Board:
Jumper Locations
DRIVE-TYPE JUMPER;
DRemove top/front cover ( .. 7 2 2)
. . .
fJ Remove Winchester disk/
floppy diskette controller board( ..7.2.3).

WANG AND IBM COMPATIBLEFLOPPY DRIVES (E7-EB)

0

FLOPPYDRIVEPRIMARY
ADDRESS
(E2-E3

E7 0
ES 0
E9 0

E1 E2E3~0

FLOPPYDRIVESECONDARYADDRESS(E1 -E2)

0

000

000

WINCHESTERDRIVEPRIMARY
ADDRESS(E5-E6)

WINCHESTERDRIVESECONDARYADDRESS
(E4-E5)

000

000

0

0

E4E5E6741-1771

Page 9-12

COMPANY CONFIDENTIAL

9.3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.8 Wang Local Office Connection (WLOC) Board:
Switch Settings
8Remove top/front cover ( • 7.2.2).

UVerify SW1 (address) settings.
SW1(ADDRESS)

10 9 8 7 6 5 4 3 2 1

DDDDDDDDDD

fJ Remove WLOC board ( .. 7 .2.3).

Dverify SW2 (Prom Enable)settings.
SW2(PROM ENABLE)
~5
~4
~3
~2
~1

rz.a =SWITCH POSITION

741-1771

Page 9-13

COMPANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.9 Wang Local Office Connection Board:
Jumper Locations

DRemove top/front cover ( .7.2.2).

a Remove WLOC board(• 7.2.3).

8 Verify proper jumper locations.
J4

JB

~~

J7*

r--~~~~~~~'----,10

OOOOO+JOOOOOO

00000+-1000000.
11 10 9 8 7

6 5 4 3 2 1* JUMPER POSITIONS 4. 6. AND
10 ARE DISABLED: DO NOT USE
THESE POSITIONS.

741-1771

Page 9-14

COMPANY CONFIDENTIAL

9.3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.10 Synchronous/Asynchronous Communications
Board: Switch Settings
GRemove top/front cover ( • 7 .2.2).
Remove synchronous/
asynchronous board ( • 7 .2.3).

0 Verify SW1 settings.
SW1 [SYNC/ASYNC SERIAL
PORT ADDRESS)DDDDODOOOO

1 2 3 4 5 6 7 8 910~~~~QQQQQ~ 3ci~~~Gci­~~QQ~QQQQ~ 320 (HEX.)~Q~Q~QQ~~~ 2AO (HEX.)~Q~QQQQQQ~ 280 [HEX.)~Q~~QQQQ~~ 240 [HEX.)~~QQ~Q~QQ~ 220 (HEX.)
13 = SWITCH POSITION
Overify SW1A settings.
SW1 A(SERIAL PORT.ADDRESS/INTERRUPT LEVEL)~ ~~~~ ~~~T 1·
UlLlLlLU ~~~~PORT 2**PORT CAN BE DISABLED BY
SETTING SWITCH 10 ON BANKSW1 TOQ POSITION.

741-1771

Page 9-15

COMPANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.11 Synchronous/Asynchronous Communications
Board: Jumper Locations
0Remove top/front cover ( • 7.2.2).

.--------------a Remove synchronous/Iasynchronous board.
( llt7.2.3).

8 Verify proper jumper
location.

J30000000~00

00000000+100
15 12 1110 9 7 6 5741-1771

Page 9-16

4 3

COMPANY CONFIDENTIAL

9 .3 Switch ~~:!'a~d~~~p~s AND SETUP
9.3.12 Expanded Memory Board: Switch Settings(Sheet 1 of 7)

8 Remove expanded memory board( .7.2.3).

f'IOTE

An Expanded Memory Card Installation
Assistant program is available to help
set switches on expanded memoryboard(s). Insert diskette into floppy
drive "A" and type "ASSIST" after"A> " appears on screen. Press"RETURN" and follow prompts.

U Verify proper switch settings.

0 Remove top/front cover(• 7.2.2).
SW1(ADDRESS)DDDDDDDDDD
1 2 3 4 5 6 7 8 910~~~~~~~~~~ 344 (HEX.)~~~~~~~~~~ 324 (HEX.)~~~~~~~~~~ 2A4 (HEX.)~~~~~~~~~~ 284 (HEX.)~~~~~~~~~~ 244 (HEX.)~~~~~~~~~~ 224 (HEX.)
ml=

741-1771

Page 9-17

SWITCH POSITIONCOMPANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.12 Expanded Memory Board: Switch Settings(Sheet 2 of 7)

D Remove top/front cover[• 7 .2.2).

8 Remove expanded memory board( .. 7.2.3).

NOTE
SW2 specifies amount of direct[nonpaged) memory already residing in· system before expanded memory 161
board is installed. Setting switch LJ
specifies that a certain amount ofmemory has already been installed.
These values are: SW1 ::8192KB,
SW'a=. 4096KB, SW3= 204BKB,
SW4= 1024KB, SW5= 512KB,
SWS:: 256KB, SW7=128KB, SWB=
parity enable/disable.

741-1771

Page 9-18

8 Verify proper switch settings(•

9.3.12 sheets 3, 4 & 5).

SW2 [EXISTING MEMORY)

DDDDDDDD
1

COMPANY CONFIDENTIAL

9. 3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.12 Expanded Memory Board: Switch Settings(Sheet 3 of 7)
SW2 [EXISTING MEMORY)

DDDDDDDD

SW2 [EXISTING MEMORY)

SW2 [EXISTING MEMORY)

DDDDDDDD

DDDDDDDD

IZil

741-1771

Page 9-19------------= switch position

COMPANY CONFIDENTIAL

9 .3 Switch ~~:~a~d~~:~s AND SETUP
9.3.12 Expanded Memory Board: Switch Settings(Sheet 4 of 7)
SW2 (EXISTING MEMORY)

SW2 (EXISTING MEMORY)

SW2 (EXISTING MEMORY)

UJi

741-1771

Page 9-20= switch position

COMPANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.12 Expanded Memory Board: Switch Settings(Sheet 5 of 7)
SW2 (EXISTING MEMORY)

SW2 (EXISTING MEMORY)

SW2 (EXISTING MEMORY)

1221

741-1771

Page 9-21=switch position

COMPANY CONFIDENTIAL

9.3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.12 Expanded Memory Board: Switch Settings(Sheet 6 of 7)

D Remove top/front cover(• 7 .2.2).

8 Verify proper switch settings( • 9.3. 12 sheet 7).

8 Remove expanded memory board( .. 7.2.3).

SW3 (MEMORY ALLOCATION)

12345678

ODDO DODD~~~~----~~~i--~~~~~~~~~~

rza741-1771

Page 9-22=switch position

COM~IANY CONFIDENTIAL

9 .3

UNPACKING AND SETUP
Switch Settings and Jumpers

9.3.12 Expanded Memory Board: Switch Settings(Sheet 7 of 7) SW3(MEMORY ALLOCATION)

DDDDDD~Q

1 2 3 4 5·5·7 a··

128KB ggg~
256KB ggg~
384KB gg~~
512KB gg~~
640KB g~gg

DIRECTMEMORY(NONPAGED)
ALLOCATION(SW3-1
THROUGH
SW3-4)******SW3-1 throughSW3-4 define amountof memory allocatedas direct(non-paged)
memory.

768KB n161n161 *SWITCHES 5 AND 6 NOT
iruuiruu USED; SET TO n
s9sKs n 161161 n
iru

iru LJ LJ iru **SW3-8 ENABLES/DISABLES
1024KB n ml Im ml CPU DIRECT MODE ADDRESSING
iru LJ LJ LJ OF MEMORY ON EXPANDED
mlnnn MEMORY BOARD. DEFAULT
1 152 KB LJ!Wiruiru SETIING IS ~ ; TO OVERRIDE
1280KB roonnml SW3-1 THROUGH SW3-4, SW3-8
LJ iru iru LJ IS SET fru
1408KB ~g~~

LJ

1536KB ~~~~
1664KB ~~g~
1792KB ~~~~
1920KB ~~~~
2048KB ~~~~

741-1771

Page 9-23..-.i:

switch position

COMPANY CONFIDENTIAL

----------------

9 .4 Connect~~PACKING AND SETUP
9.4.1 Electronics Enclosure: Board Locations

BOARD FASTENING/
ACCESS PLATESOPTIONBOARD
SOCKETSCPU BOARD

741-1771

Page 9-24

COMPANY CONFIDENT~·AL

9 .4 Connect~~PACKING AND SETUP
9.4.2 Winchester Disk/Floppy Diskette Cabling
Connections

WINCHESTER/FLOPPY DISKCONTROLLER BOARD CABLINGCONNECTIONS:
J1-FLOPPY DATA CABLESCONNECTOR
J3-DRIVE "D" CONNECTOR
J4-DRIVE "C" CONNECTOR
J5-WINCHESTER DATA CABLESCONNECTOR (DRIVES "C" AND "D")J3

741-1771

J4

Page 9-25

J5

J1

COMPANY CONFIDENTIAL

9 .4 Connect~~PACKING AND SETUP
9.4.3 Electronics Enclosure: 1/0 Connections(Sheet 1 of 2)
MONOCHROME/COLOR VIDEO
BOARD PANEL - - - - - -MONITOR 9-PIN 0-SHELL
CONNECTOR
CPU BOARD CONNECTOR PANELMONITOR/KEYBOARD
CABLE
CONNECTORSERIAL PORT
(9-PIN 0-SHELL
CONNECTOR)PARALLEL PORT
(25 PINOSHELL
CONNECTOR)
741-1771

Page 9-26

COMPANY CONFIDENTIAL

9 .4 Connect~~PACKING AND SETUP
9.4.3 Electronics Enclosure: 1/0 Connections(Sheet 2 of 2)
SYNCHRONOUS/ASYNCHRONOUS
COMMUNICATIONS BOARD
INDUSTRY STANDARD,ASYNCHRONOUS-ONLYPORT(9-PIN D-SHELL
CONNECTOR)WLOC BOARD

741-1771

Page 9-27

COMPANY CONFIDENTIAL

9.4

UNPACKING AND SETLJPConnections

9.4.4 Electronics Enclosure: AC Power Connection

D Set voltage selection switch toproper line voltage ( .. 9.3.1 ).

fl Connect ac power cord between
electronics enclosure and ac
outlet. Tighten connector
screws.

741-1771

Page 9-28

COMPANY CONFIDENTIAL

9.4

UNPACKING AND SETUP
Connections

9.4.5 Monochrome Monitor Connections

II Connect keyboard cable toconnector in rear of monitor.

8 Connect monitor cable connectors(2) to monitor cable connector inmonochrome/color video board andCPU board. Tighten connector
screws.

741-1771

Page 9-29

COMPANY CONFIDENTIAL

~

9.5

------------------UNPACKING AND SETUP
Voltage Checks

9.5.1 CPU Board: DC Voltage and Ripple Checks
J21 CONNECTOR TEST POINTS
DRemove top/front cover ( • 7.2.2).
Dset electronics enclosure power-on/
off button to ON position(• 3.1.1 ).

-12V

IJ Connect common lead of DVM

to :1: OV test point on CPU board
J21 connector.

D Connect positive lead of DVM to-5V,-12V, +12V, +5V test points
on J21 connector and verify devoltage limits.
Test Point Voltage Limits[Vdc)-4.75 -5.25-5V-11.4-12.6-12V+11.4 +12.6+12V..4.75 -t5.25+5V

741-1771

Page 9-30

COMPANY CONFIDENTIAL

9.s

UNPACKING AND SETUP
Voltage Checks

9.5.2 CPU Board Rear Panel: Monitor and Keyboard
DC Voltage and Ripple Checks
DRemove top/front cover ( • 7.2.2).
Oset electronics enclosure power-on/
off button to ON position( • 3.1.1 ).
8connect common lead of DVM to::t:OV
test point on CPU board J21
connector(• 9.5.1 ).

J3 CONNECTOR ON CPU
BOARD.

8 Connect positive lead of DVM to..SV .+ 12V test points on J3
connector on CPU board rear
panel and verify de voltage limits.

741-1771

Page 9-31

Test Point Voltage

Limits(Vdc)

+5V
+12V

-+4.75 +5.25+11.4+12.6

COMPANY CONFIDENTIAL

9.5

UNPACKING AND SETUP
Voltage Checks

9.5.3 Floppy Diskette Drive: DC Voltage and Ripple Checks
DRemove top/front cover ( • 7 .2.2).

fl Disconnect power cable connector
from floppy drive(• 7.2.4).

11 Set electronics enclosure poweron/off button to ON position( .. 3.1.1 ).

POWER CABLE CONNECTOR+12v---1fov o{)1'-+5v
LGND~

D Connect common lead of DVM to
one of ground test points on
floppy diskette power cableconnector.

11 Connect positive lead of DVM toi6V,+12V test points on floppy
diskette power cable connector
and verify de voltage limits.
Test Point Voltage Limits(Vdc)+5V+4.75 +5.25+12V+11.4 +12.6
741-1771

Page 9-32

COMPANY CONFIDENTIAL

9.s

UNPACKING AND SETUP
Voltage Checks

9.5.4 Winchester Disk Drive: DC Voltage andRipple Checks

DRemove top/front cover ( • 7.2.2).
fJ Disconnect power cable fromrear of Winchester disk drive( .7.2.5).

II Set electronics enclosure poweron/off button to ON position(.3.1.1).

POWER CABLE CONNECTOR+12-rsaNw+5V

IJ Connect common lead of DVM to

one of ground test points on
power cable connector.
11 Connect positive lead of DVM toi5V ,+12V test points on
power cable connector andverify de voltage limits.
Test Point Voltage Limits(Vdc)+ 5V+4.75 +5.25+12V+11.4+12.6

741-1771

Page 9-33

COMPANY CONFIDENTIAL

9.s

UNPACKING AND SETUP
Installing Options

9.6.1 80287 Coprocessor Installation
1. Remove top/front cover C• 7 .2.2)
2. Remove any board(s) hindering
access to CPU board socket L53

C•7.2.3J.
3. Position coprocessor over L53
socket: align coprocessor notchwith socket notch.
4. Align coprocessor pins with socket
holes: press coprocessor firmly
into place.
5. Replace any board(s) removed
before installing coprocessorc•s.6.2J.
6. Secure top/front cover to enclosure.

741-1771

Page 9-34

COMPANY CONFIDENTIAL

9.s

UNPACKING AND SETUP
Installing Options

9.6.2 Option Board Installation
1. Remove top/front cover (• 7 .2.2).
2. Remove screw that securesfastening/access plate to enclosure.
3. Lift fastening/access plate out of
slot.
4. Align board connectors with CPU
board sockets.
5. Gently push down on top of board
so board connectors firmly matewith option sockets: board shouldslide between grooves of cardguide that is attached to inside
front of enclosure.
6. Replace screw that secures option
board to enclosure.
7. Connect cables (if applicable).
8. Secure top/front cover to enclosure.

741-1771

Page 9-35

COMPANY CONFIDENTIAL

9.s

UNPACKING AN[I SETUP
Installing Options

9.6.3 Floppy Diskette Drive 11 8 11 Installation
1 . Remove terminating resistor packfrom optional 8" drive [Note: 3
1/2-inch drives do not have removable terminator).
2. Remove top/front cover (..7.2.2).
3. Press in on floppy drive •A'' guiderails; pull drive ''A·' slightly forward.
4. Partially slide optional floppy drive
into location '· B'' of enclosure.
5. Attach drive cable harness connector to floppy drive '' B. ' '6. Connect power supply cable andgrounding strap to floppy drive11

1··s ...

7. Slide floppy drives ' A'' and '8''
completely into enclosure.
8. Remove drive B'' plastic coverplate by pushing outward on tabthat secures plate to top/front
cover.
9. Secure top/front cover to electronics enclosure.
1

1

11

741-1771

Page 9-36

COMPANY CONFIDENTIAL

9.&

UNPACKING AND SETUP
Installing Options

9.6.4 Winchester Drive 11 C" Installation
1. Remove top/front cover (•7.2.2).
2. Partially slide drive into location··c."

3. Attach drive cable harness connectors, power supply cable, andgrounding strap to drive '' C.''
4. Completely slide drive into enclosure.
5. Secure top/front cover to enclosure.

741-1771

Page 9-37

COMPANY CONFIDENTIAL

9.&

UNPACKING AND SETUP
Installing Options

9.6.5 Full-Height Winchester Drive "D" lnstallatir:;•1
1. Place drive bottom side up.
2. Loosen captive screws at rear ofdrive.
3. Carefully lift board up, exposing
inside of drive.
4. Remove terminating resistor pack.
Use small flat blade screwdriver to ,:gently pry resistor pack out of /socket. (If terminating resistor is a ~switch bank, set all switches onbank to off (open) position.)
5. Screw board back into drive.
6. Remove top/front cover (•7 2.2).
7. Turn drive right side up and partially slide it into location '' D.''
8. Attach drive cable harness connectors, power supply cable, andgrounding strap to drive '' D.''
9. Completely slide drive into enclosure.
10. Secure top/front cover to enclosure.

I

I

/
I
I
741-1771

Pag•e 9-38

COMPANY CONFIDENTIAL

9.s

UNPACKING AND SETUP
Installing Options

9.6.6 Half-Height Winchester Drive 11 D 11 Installation
1. Place drive bottom side up.
2. Set terminating resistor switches
to off position. [If terminating
resistor pack is present instead ofswitch bank, use small flat blade
screwdriver to gently pry pack outof socket.)
3. Set switch 2 of drive select [OS)bank to "on" position; all otherswitches on OS bank should be''off.''
4. Remove top/front cover (•7.2.2).
5. Turn drive top side up and partiallyslide it into location '' 0.''
6. Attach drive cable harness connectors, power supply cable, andgrounding strap to drive '' O.''
7. Completely slide drive into enclosure.
8. Secure top/front cover to enclosure.

741-1771

Page 9-39

COMPANY CONFIDENTIAL

9.&

UNPACKING AND SETUP
Installing Options

9.6. 7 Installing Single In-Line Memory Module (SIMM)
CAUTION
SIMMs are sensitive to static electricity. Handle carefully and do nottouch component side of the SIMM.

EXPANDED MEMORY BOARD

1. Position SIMM above appropriate
socket on expanded memory board.
2. Insert SIMM into board socket;
connectors on bottom of SIMM
must be aligned with pins on board
socket. Apply light pressure to topof SIMM.
3. Align holes in corners of SIMM withthe two posts on either side ofboard socket. Press on edges of
SIMM and rotate it backwards into
socket. Board socket latches
should snap over SIMM.

BOARD SOCKETSFOR SIMM

741-1771

Page 9-40

COMPANY CONFIDENTIAL

9.7

UNPACKING AND SETUP
Software Installation

9. 7 .1 INSTALL Program: Description
The INSTALL program consists of four
utilities: SETUP, HDINIT [Winchesteror hard disk initialization), FDISK [Winchester partition), and FORMAT (partition format). These utilities are executed from a file on system diskette

1.
SETUP is a software program that
identifies the options installed on thesystem. This utility must be executed
after all internal and external options
have been configured. If the CPU
board or lithium battery is replaced, or
if any new options are added, SETUP
must be run again.
The HDINIT [Winchester initialization)utility formats the hard disk drive anddetects and marks any defective
tracks on the disk.

prompt appears on the monitor
screen. After the utility's name has
been entered, the RETURN key must
be pressed. For example, if theprompt A> is on the screen, the
SETUP utility may be run by typing"SETUP" after the prompt: i.e.,
A>SETUP.
The INSTALL program has two operational modes: an interaction mode that
permits the operator to skip steps
when executing a utility: and an automated mode that initiates automatic
system execution of all INSTALL utilities without user intervention.

CAUTIONUse of automated mode destroys alldata on the hard disk drive.

The FDISK (Winchester partition) utility creates the largest MS-DOS partition acceptable on the hard disk drive[operating system will recognize a disk
partition of up to 32MB).
The FORMAT (partition format) program sets up an MS-DOS boot sector
in the partition created by FDISK.
FORMAT also prepares the partition
to accept files by setting up a file allocation table and root directory.
Any of the INSTALL utilities may be
run singly by entering the utility's
name when the command processor

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COMPANY CONFIDENTIAL

9.7

UNPACKING AND SETUP
Software Installation

9. 7 .2 Preparing Winchester Drive
CAUTION

Preparing Winchester drive results indestruction of all data already present
on hard disk.

1. Run HDINIT" utility.*
2. Run "FDISK" utility.
3. Run ''FORMAT'' utility.
4. Type "SYSC:" to copy systemfiles to Winchester.
5. Copy files from system diskettes
to Winchester drive.
11*Executing '' HDINIT'' utility can take2 to 4 hours.

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SECTION 10 CONTENTSSECTION 10
FUNCTIONAL DESCRIPTION(Unavailable at present time)741-1771

COMPANY CONFIDENTIAL

SECTION 11 CONTENTSSECTION 11
SPECIFICATIONS
Page

11. 1

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HARDWARE ....................................................................... 11-1

COMPANY CONFIDENTIAL

11 .1 Hardware

SPECIFICATIONSElectronics Enclosure Dimensions (resting flat, no stand)

Color Monitor Weight29.5 lb (13.4 kg)

Height: 6.6 in. (16.8 cm)
Width: 21.38 in. (54.3 cm)
Depth: 16.25 in. (41 .3 cm)

Keyboard Dimensions

Electronics Enclosure Weight

Height: 1.65 in. (4.19 cm)
Width: 19.9 in. (50.5 cm)
Depth: 7 .6 in. (19.3 cm)

52 lb (23.6 kg)
Keyboard Weight

Electronics Enclosure Power
Requirements

3.25 lb (1.48 kg)

Voltage: 90 to 132 Vac(115 Vac nominal)
180 to 264 Vac (220 Vac nominal)

System Environmental
Requirements

Frequency: 47 to 63 Hz (60 Hz nominal)
Current (operating): 3A @ 115 Vac:
1.5A @ 220 Vac

Relative Humidity: 200/o to 800/o (noncondensing)Ambient Temperature: 60 ° F to 90 ° F(15°C to 32°C)
Maximum Altitude: 6562 ft (2000 m)

Monochrome Monitor Dimensions

Heat Dissipation (Electronics Enclosure): 870 Btu/hr

Height: 11.4 in. (29.0 cm)
Width: 12.5 in. (31.8 cm)
Depth: 12.4 in. (31.5 cm)
Monochrome Monitor Weight

14 lb (6.36 kg)

Color Monitor Dimensions
Height: 13.5 in. (34.3 cm)
Width: 14 in. (35.6 cm)
Depth: 15.7 in. (39.9 cm)

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COMPANY CONFIDENTIAL

SECTION 12 CONTENTSSECTION 12
ILLUSTRATED PARTS
Page

12.1

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SYSTEM COMPONENTS ...................................................·.. 12-1

COMPANY CONFIDENTIAL

12 .1ILLUSTRATED PARTS
System Components (Sheet 1 of 4)

D

Item

Part Number

Description

1279-0757

Monochrome monitor

2'3725-3446

Color monitor

725-3401-US

Keyboard

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COMPANY CONFIDENTIAL

-

12 .1

- - -

--------------ILLUSTRATED PARTS
System Components (Sheet 2 of 4)

D

D

Item

Part Num.ber

Description

4270-1078

Power supply

5279-0760

1.2MB diskette drive6279-0765

360KB diskette drive7279-0766

720KB diskette drive8279-0768

33MB Winchester disk drive

9279-0769

42MB Winchester disk drive10279-0770

67MB Winchester disk drive

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COMPANY CONFIDENTIAL

-

12 .1

--··

------------------ILLUSTRATED PARTS
System Components (Sheet 3 of 4)

Item

Part Number

Description

11210-8770-A

Winchester /floppy controller board [willreplace Western Digital controller, P/N
725-3359)

12725-3358

Monochrome/color video board

13210-9454-A

Wang local office connection [WLOC) board

14210-9453

Expanded memory board

15

210-9455

Synchronous/asynchronous communications
board

16

210-9451-A"

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CPU board

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COMPANY CONFIDENTIAL

12.1

ILLUSTRATED PARTS
System Components (Sheet 4 of 4)

m

Item

Part Number

Description

17220-2523

Keylock cable assembly

18220-3477

Disk cable assembly

19220-2526

Speaker and cable20376-6050

Single In-Line Memory Module (SIMM)

21666-1016

Lithium battery

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COMPANY CONFIDENTIALWANG

LABORATORIES.

INCONE INDUSTRIAL AVENUE. LOWELL. MASSACHUSETTS 018S1 TEL 161714S9 SOOD TWX 710 343 6769 TELEX 94 7421

PRINTED IN U.S.A.

COMP ANY CONFIDENTIAL

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