WPz50.pdf

IBM Mobile Systems

S37L-2095-00

WorkPad z50 Mobile Companion (2608-1Ax)

Hardware Maintenance Manual

March 1999

Note

Before using this information and the product it supports,

be sure to read the general information under “Notices”

on page 61.

First Edition (March 1999)

The following paragraph does not apply to the United

Kingdom or any country where such provisions are

inconsistent with local law:

INTERNATIONAL BUSINESS MACHINES

CORPORATION PROVIDES THIS PUBLICATION “AS IS”

WITHOUT ANY WARRANTY OF ANY KIND, EITHER

EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED

TO, THE LIMITED WARRANTIES OF MERCHANTABILITY

OR FITNESS FOR A PARTICULAR PURPOSE. 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 and

programs), programming, or services that are not announced

in your country. Such references or information must not be

construed to mean that IBM intends to announce such IBM

products, programming, or services in your country.

Requests for technical information about IBM products

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Government Users – Documentation related to restricted

rights – Use, duplication, or disclosure is subject to

restrictions set forth in GSA ADP Schedule Contract with

IBM Corp.

iii

About This Manual

This manual contains service and reference information for

the W orkPad z50, Mobile Companion. Use this manual

along with the diagnostic software to troubleshoot problems

eff ectively.

This manual is divided into sections as follows:

· The Introduction section provides general information,

and safety information required to service computers.

· The product-specific section includes service,

reference, and product-specific parts information.

Important

This manual is intended for trained service personnel who

are familiar with W orkPad products.

Before servicing an IBM W orkPad product, be sure to

review the safety information under “Safety Notices” on

page viii and “Safety Information” on page xii.

IBM WorkPad z50, Mobile Companion iv

Contents

Introduction ......................................................................... vii

I MPORTANT S ERVICE I NFORMATION VII

FRU Replacement Strategy .......................................................vii

S AFETY N OTICES (M ULTI - LINGUAL T RANSLATIONS ) VIII

S AFETY I NFORMATION XII

General Safety............................................................................xii

Electrical Safety ........................................................................xiii

Safety Inspection Guide............................................................ xiv

Handling Electrostatic Discharge-Sensitive Devices............. xvi

Grounding Requirements ......................................................... xvi

W ORK P AD Z 50 M OBILE C OMPANION (2608) 1

R EAD T HIS F IRST 1

S CREW T IGHTENING I NFORMATION 2

P RODUCT O VERVIEW 5

C HECKOUT G UIDE 6

Audio Checkout............................................................................7

Keyboard Checkout .....................................................................8

Memory Checkout ........................................................................8

Modem Checkout .........................................................................9

Power Systems Checkout.............................................................9

Backup Battery Checkout (Nonrechargeable) .........................13

The Battery Calibration Application ........................................13

ROM Card Checkout .................................................................14

TrackPoint Checkout .................................................................15

Cradle Checkout ........................................................................15

External Monitor Self-Test ........................................................15

I NSTALLING THE ROM/DRAM C ARD 17

Removing the ROM/DRAM Card..............................................18

Brightness/Contrast Buttons Checkout ....................................19

P OWER M ANAGEMENT F EATURES 20

Full Power Mode .......................................................................20

Suspend Mode ............................................................................20

S YMPTOM - TO -FRU I NDEX 21

Numeric Error Codes ................................................................21

Function-Related Symptoms......................................................23

Indicator-Related Symptoms .....................................................23

Infrared-Related Symptoms.......................................................23

Keyboard- or TrackPoint-Related Symptoms ..........................24

LCD-Related Symptoms.............................................................24

Peripheral Device Related Symptoms ......................................25

Power-Related Symptoms..........................................................25

Other Symptoms .........................................................................25

Intermittent Problems ................................................................26

Undetermined Problems............................................................26

R UNNING THE D IAGNOSTICS 27

PC Card Slot Test ......................................................................27

UUID ..........................................................................................28

R ELATED S ERVICE P ROCEDURES 28

Status Indicators and Control Buttons .....................................28

Application Launching Key Assignments .................................29

R EMOVING AND R EPLACING D EFECTIVE FRU S 30

Important Notice ........................................................................32

Removal reference .....................................................................34

1010 Backup Batteries..............................................................35

1020 ROM/DRAM Card ...........................................................36

1030 Battery Pack.....................................................................38

1040 Keyboard Assembly .........................................................39

1050 Bottom Cover...................................................................40

1060 Mainboard .......................................................................42

1070 LCD Bezel ........................................................................43

1080 LCD Unit..........................................................................44

1090 Inverter Card and LCD Panel ........................................45

1110 FPC Assembly..................................................................46

1120 Speaker.............................................................................47

1130 Microphone......................................................................47

1140 Audio Ports ......................................................................48

1150 PC Card Slot Assembly ...................................................48

1160 RJ-11 Assembly ...............................................................50

1170 Hardware Button Board .................................................51

1180 Top Cover ........................................................................52

L OCATIONS 53

Front Right View........................................................................53

Left View.....................................................................................54

Right View ..................................................................................54

Rear View ...................................................................................55

Bottom View ...............................................................................55

P ARTS L ISTING 56

System Unit FRU List ................................................................57

LCD Unit Parts List ...................................................................58

Miscellaneous and Other Parts.................................................59

Option Parts FRU List...............................................................59

Other Parts .................................................................................59

CRU ............................................................................................59

Tools ...........................................................................................59

Power Cord ................................................................................60

N OTICES 61

Trademarks ................................................................................61

IBM W orkPad z50, Mobile Companion vi

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