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TravelMate 520
Service Guide
Service guide files and updates are available
on the AIPG/CSD web; for more information,
please refer to http://csd.acer.com.tw
PART NO.: 49.41H02.001
DOC. NO.: SG336-0005A PRINTED IN TAIWAN
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Copyright
Copyright © 1999 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in
any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without
the prior written permission of Acer Incorporated.
Disclaimer
The information in this guide is subject to change without notice.
Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular
purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the
programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its
dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential
damages resulting from any defect in the software.
Acer is a registered trademark of Acer Corporation.
Intel is a registered trademark of Intel Corporation.
Pentium and Pentium II/III are trademarks of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective holders.
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Conventions
The following conventions are used in this manual:
Screen messages Denotes actual messages that appear
on screen.
NOTE
Gives bits and pieces of additional
information related to the current
topic.
WARNING
Alerts you to any damage that might
result from doing or not doing specific
actions.
CAUTION
Gives precautionary measures to
avoid possible hardware or software
problems.
IMPORTANT
Reminds you to do specific actions
relevant to the accomplishment of
procedures.
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Preface
Before using this information and the product it supports, please read the following general information.
1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION
decided for Acer's "global" product offering. To better fit local market requirements and enhance product
competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g.
add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered
in this generic service guide. In such cases, please contact your regional offices or the responsible
personnel/channel to provide you with further technical details.
2. Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information
available on your regional web or channel. If, for whatever reason, a part number change is made, it will
not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer
office may have a DIFFERENT part number code to those given in the FRU list of this printed Service
Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and
service of customer machines.
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Table of Contents
Chapter 1
System Specifications
1
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Touchpad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Hardware Specifications and Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chapter 2
System Utilities
29
BIOS Setup Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
BIOS Flash Utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
System Utility Diskette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
System Diagnostic Diskette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Chapter 3
Machine Disassembly and Replacement
43
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Disassembly Procedure Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Removing the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Removing the CD-ROM Drive Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Removing the Hard Disk Drive Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Removing the Extended Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Removing the Modem Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Disassembling the LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Disassembling the Upper Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Disassembling the Lower Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Chapter 4
Troubleshooting
67
System Check Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Index of Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Index of Symptom-to-FRU Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Intermittent Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Undetermined Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Index of AFlash BIOS Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Index of PQA Diagnostic Error Code, Message . . . . . . . . . . . . . . . . . . . . . . . . 81
Chapter 5
Jumper and Connector Locations
83
Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Bottom View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Chapter 6
FRU (Field Replaceable Unit) List
87
Appendix A Model Definition and Configuration
99
Appendix B Test Compatible Components
101
Appendix C Online Support Information
103
Index
105
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