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Acer TravelMate 520 TravelMate 520 Service Guide - Page 50

General Information, Before You Begin - disassembly

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General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system. 44 Chapter 3

Section	Page
TravelMate 520	1
Copyright	2
Disclaimer	2
Conventions	3
Preface	4
Table of Contents	5
Ch.1 System Specifications	7
Features	7
System Block Diagram	9
Board Layout	10
Panel	12
Indicators	16
Keyboard	17
Touchpad	21
Hardware Specifications and Configurations	23
Ch.2 System Utilities	35
BIOS Setup Utility	35
BIOS Flash Utility	43
System Utility Diskette	44
System Diagnostic Diskette	46
Ch.3 Machine Disassembly and Replacement	49
General Information	50
Disassembly Procedure Flowchart	51
Removing the Battery Pack	53
Removing the CD-ROM Drive Module	54
Removing the Hard Disk Drive Module	55
Removing the Extended Memory	56
Removing the Modem Board	57
Disassembling the LCD	58
Disassembling the Upper Case	64
Disassembling the Lower Case	68
Ch.4 Troubleshooting	73
System Check Procedures	74
Index of Error Message	77
Index of Symptom-to-FRU Error Message	80
Intermittent Problems	84
Undetermined Problems	85
Index of AFlash BIOS Error Message	86
Index of PQA Diagnostic Error Code, Message	87
Ch.5 Jumper and Connector Locations	89
Top View	89
Bottom View	91
Ch.6 FRU (Field Replaceable Unit) List	93
Ap.A Model Definition and Configuration	105
Ap.B Test Compatible Components	107
Ap.C Online Support Information	109

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