Acer Travelmate 520 Service Guide

TravelMate 520
Service Guide
  PART NO.:  49.41H02.001
  DOC. NO.:   SG336-0005A                                                                                                  PRINTED IN TAIWAN Service guide files and updates are available
on the AIPG/CSD web; for more information, 
please refer to http://csd.acer.com.tw 

II
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...

III
Conventions
The following conventions are used in this manual:
Screen messagesDenotes 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. 

IV
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 Acers 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...

V
Table of Contents
Chapter 1 System Specifications  1
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
System Block Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

VI
Table of Contents 

Chapter 11
Features
This computer was designed with the user in mind.  Here are just a few of its many features:
Performance
TMobile Pentium®  III processor with 256KB L2 cache, Mobile Pentium®  III processor with 256KB 
level 2 cache featuring Intel®  SpeedStep™   technology with 256KB level 2 cache or Mobile 
Celeron®  processor with 128KB level 2 cache
T64-bit memory bus
TBuilt-in floppy disk drive
TLithium-Ion battery pack
TPower management system with ACPI (Advanced Configuration Power Interface)...

2Chapter 1
Display
The large graphics display offers excellent viewing, display quality and desktop performance graphics.  The 
computer supports a Thin-Film Transistor (TFT) liquid crystal display (LCD) displaying 24-bit true-color at 
800x600 Super Video Graphic Array (SVGA) or 1024x768 eXtended Graphics Array (XGA) resolution.
Video performance
2X AGP video graphic accelerator with 8 MB of video memory boost video performance.
Simultaneous display
The computer’s large display and multimedia...

Chapter 13
System Block Diagram
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4Chapter 1
Board Layout
To p  Vi e w
1.   DC-in Port 16. Diskette Drive Connector
2.   PS/2 Keyboard and Mouse Port 17. PCMCIA (PC card) Controller (OZ6933)
3.   Serial Port 18. Switch
4.   Parallel Port 19. BIOS ROM
5.   Expansion Port 20. HDD Connector
6.   USB Port 2 21. Golden Finger for Debug 
7.   USB Port 1 22. Touchpad Cable Connector
8.   External Display Port 23. Digital Finger Print Sensor Connector(Not Used)
9.   Modem Port 24. Keyboard Cable Connector
10. LAN Port 25. RTC Battery
11. LED &...