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Extensa 500 Notebook
Service Guide
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For more detailed information, please refer to
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Copyright
Copyright * 1996 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
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. Further, Acer Incorporated reserves
the right to revise this publication and to make changes from time to time in
the contents hereof without obligation of Acer Incorporated to notify any
person of such revision or changes.
Acer is a registered trademark of Acer Incorporated.
Intel is a registered trademark of Intel Corporation.
Pentium is a trademark of Intel Corporation.
Other brand and product names are trademarks and/or registered
trademarks of their respective holders.
PART No: 49.42B02.001....................................................PRINT IN TAIWAN
DOC No: SG281-9807A
Table of Contents
Chapter 1 System Introduction
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Special Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Hardware Configuration and Specification . . . . . . . 17
Memory Address Map . . . . . . . . . . . . . . . . . . 17
Interrupt Channel Assignment . . . . . . . . . . . . 17
DMA Channel Assignment . . . . . . . . . . . . . . . 18
I/O Address Map. . . . . . . . . . . . . . . . . . . . . . . 18
Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
System Memory . . . . . . . . . . . . . . . . . . . . . . . 20
DIMM Combinations . . . . . . . . . . . . . . . . . . . . 20
Video Memory . . . . . . . . . . . . . . . . . . . . . . . . 21
Cache Memory . . . . . . . . . . . . . . . . . . . . . . . . 21
Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Video Resolutions Modes . . . . . . . . . . . . . . . . 21
Parallel Port . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Serial Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
PCMCIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Diskette Drive . . . . . . . . . . . . . . . . . . . . . . . . . 24
Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . 24
CD-ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . 26
DC-DC/Charger Board . . . . . . . . . . . . . . . . . . 26
LCD Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . 27
LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Power Adapter . . . . . . . . . . . . . . . . . . . . . . . . 28
Power Management . . . . . . . . . . . . . . . . . . . . . . . . 30
Power Management Modes . . . . . . . . . . . . . . 30
BIOS Setup Utility. . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 2 Software Utilities
Basic System Settings . . . . . . . . . . . . . . . . . . 34
4 Table of Contents
Table of Contents
Startup Configuration. . . . . . . . . . . . . . . . . . . . 35
Onboard Devices Configuration . . . . . . . . . . . 36
System Security. . . . . . . . . . . . . . . . . . . . . . . . 37
Power Management . . . . . . . . . . . . . . . . . . . . 39
Load Default Settings . . . . . . . . . . . . . . . . . . . 40
AFlash Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Executing AFlash. . . . . . . . . . . . . . . . . . . . . . . 41
Quick Way to Execute AFlash . . . . . . . . . . . . . 42
System Utility Diskette. . . . . . . . . . . . . . . . . . . . . . . 43
Set LCD Panel ID . . . . . . . . . . . . . . . . . . . . . . 43
Set Thermal Sensor Threshold . . . . . . . . . . . . 43
System Diagnostic Diskette. . . . . . . . . . . . . . . . . . . 44
Running PQA Diagnostics Program. . . . . . . . . 45
Diagnostic Program Error Code and Messages47
Chapter 3 Machine Disassembly
General Information. . . . . . . . . . . . . . . . . . . . . . . . . 50
Before You Begin . . . . . . . . . . . . . . . . . . . . . . 50
Connector Types . . . . . . . . . . . . . . . . . . . . . . . 50
Disassembly Procedure Flowchart . . . . . . . . . . . . . 51
Removing the Battery Pack . . . . . . . . . . . . . . . 53
Removing the DIMM . . . . . . . . . . . . . . . . . . . . 53
Removing the Modem Board . . . . . . . . . . . . . . 54
Removing the Keyboard . . . . . . . . . . . . . . . . . 55
Removing the LCD Module . . . . . . . . . . . . . . . . . . . 57
Disassembling the LCD . . . . . . . . . . . . . . . . . . 58
Disassembling the Main Unit . . . . . . . . . . . . . . . . . . 61
Removing the HDD & PCMCIA Heat Sink. . . . 61
Removing the Hard Disk Drive . . . . . . . . . . . . 61
Removing the CPU Heat Sink and CPU Board62
Removing the RTC Battery . . . . . . . . . . . . . . . 63
Disassembling the Upper Case . . . . . . . . . . . . 63
Removing the Touchpad . . . . . . . . . . . . . . . . . 64
Disassembling the Lower Case . . . . . . . . . . . . . . . . 66
Removing the CD-ROM/Diskette Drive Module66
Removing the Speakers . . . . . . . . . . . . . . . . . 68
Removing the DC-DC/Charger Board . . . . . . . 69
Removing the DC-DC/Charger Board . . . . . . . 70
Removing the System Board . . . . . . . . . . . . . . 70
Extensa 500 Service Guide 5
Removing the PCMCIA slot . . . . . . . . . . . . . . 71
Removing the Modem Phone Jack. . . . . . . . . 71
Chapter 4 Troubleshooting
System Check Procedures . . . . . . . . . . . . . . . . . . . 74
Diskette Drive Check . . . . . . . . . . . . . . . . . . . 74
CD-ROM Drive Check . . . . . . . . . . . . . . . . . . 74
Keyboard or Auxiliary Input Device Check . . . 75
Memory Check . . . . . . . . . . . . . . . . . . . . . . . . 75
Power System Check . . . . . . . . . . . . . . . . . . . 75
Touchpad Check . . . . . . . . . . . . . . . . . . . . . . 77
Error Symptom-to-FRU Index. . . . . . . . . . . . . . . . . 78
Error Messages List . . . . . . . . . . . . . . . . . . . . 78
No-Beep Symptoms . . . . . . . . . . . . . . . . . . . . 80
LCD-Related Symptoms . . . . . . . . . . . . . . . . . 81
Indicator-Related Symptoms . . . . . . . . . . . . . 82
Power-Related Symptoms . . . . . . . . . . . . . . . 82
PCMCIA-Related Symptoms . . . . . . . . . . . . . 83
Memory-Related Symptoms . . . . . . . . . . . . . . 83
Speaker-Related Symptoms. . . . . . . . . . . . . . 83
Power Management-Related Symptoms . . . . 84
Peripheral-Related Symptoms . . . . . . . . . . . . 85
Keyboard/Touchpad-Related Symptoms . . . . 85
Intermittent Problems . . . . . . . . . . . . . . . . . . . 86
Undetermined Problems . . . . . . . . . . . . . . . . . 86
Modem-Related Symptoms . . . . . . . . . . . . . . 86
Chapter 5 Connectors and Jumpers
SW1 Settings . . . . . . . . . . . . . . . . . . . . . . . . . 90
SW2 Settings . . . . . . . . . . . . . . . . . . . . . . . . . 90
Spare Parts List (P/N:91.45BXX.XXX) . . . . . . 91
Chapter 6 Spare Parts List
Model Number Definitions . . . . . . . . . . . . . . 101
6 Table of Contents
Appendix A Model Definitions
Appendix B Compatibility Tested Components
Extensa 500 Service Guide 7
8 Table of Contents
Chapter 1
System Introduction
This computer was designed with the user in mind. Here are just a few of its
many features:
Performance
u Intel Pentium