Acer Extensa 4120 User manual

Acer TravelMate 4520 Notebook Computer
Service Guide
PRINTED IN TAIWAN
Service guide files and updates are available
on the Acer CSD web site at http://csd.acer.com.tw
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Revision History
Refer to the table below for the updates made on this version of the TravelMate 4520 Notebook Computer
Service Guide.
Date Chapter Updates
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Copyright
Copyright © 2007 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 and Centrino are registered trademarks of Intel Corporation.
Intel Core is a trademark 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 textual conventions are used in this service guide.
SCREEN MESSAGES Denotes actual messages that appear on screen.
NOTE Gives additional information related to the current topic.
WARNING Alerts you to any physical risk or system 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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Service Guide Coverage
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.
FRU Information
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
Features 1
System Tour 1
1
Chapter 1 1
1 TravelMate Tour 5
Open Front View 5
Close Front View 6
Left View 7
Right View 8
Rear View 8
Base View 9
Status Indicators 10
Easy-launch Keys 11
Productivity Keys 12
Phoenix TrustedCore Setup Utility 13
System Utilities 13
Chapter 2 13
13 Accessing the Setup Utility 14
Navigating Through the Setup Utility 15
Setup Utility Menus 16
BIOS Flash Utility 24
Launch Manager 25
Disassembly Tools 27
Stages of the Disassembly Process 27
Equivalent Torque Values 27
System Disassembly 27
Chapter 3 27
System Screw List 28
Pre-disassembly Procedure 28
External Modules Disassembly 29
External Modules Disassembly Flowchart 29
Removing the SD Dummy Card 30
Removing the PC Card Dummy Card 30
Removing the Battery Pack 31
Removing the Lower Case Cover 32
Removing the Memory Modules 32
Removing the WLAN Board 33
Removing and Dismantling the HDD Assembly 34
Removing and Dismantling the ODD Assembly 36
Removing the Processor Cooling Fan 38
Removing the Heat Sink 39
Removing the Processor 40
Main Unit Disassembly 41
Main Unit Disassembly Flowchart 41
Removing the Middle Cover 42
Removing the Keyboard 42
Removing the LCD Module 43
Removing the Upper Case 47
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Table of Contents
Removing the LED Board 49
Removing the Fingerprint and Touchpad Boards 50
Removing the Card Reader Board 52
Removing the Bluetooth Board 53
Removing the System Board 54
Removing the Modem Board 55
Removing the Speakers 55
LCD Module Disassembly 57
LCD Module Disassembly Flowchart 57
Removing the LCD Bezel 58
Removing the Inverter Board 59
Removing the LCD Module Hinges 60
Removing the LCD Panel 60
Removing the LCD-CCD Cable 61
Removing the LCD Panel Brackets 62
Removing the Internal Microphone and the CCD Board 63
Removing the WLAN Antennas 64
Hardware Diagnostic Procedure 65
System Troubleshooting 65
Chapter 4 65
System Check Procedures 66
External Diskette Drive Check 66
External CD-ROM Drive Check 66
Keyboard or Auxiliary Input Device Check 66
Memory Check 67
Power System Check 67
Touchpad Check 68
POST Error Indicators 69
POST Error Message 69
POST Beep Codes 72
Index of Symptom-to-FRU Error Message 77
Intermittent Problems 80
Undetermined Problems 81
Online Support Information 82
System Block Diagram 83
System Block Diagram and Board Layout 83
Chapter 5 83
83 System Board Layout 84
Top View 84
Bottom View 85
System Switch 86
FRU (Field Replaceable Unit) List 87
Chapter 6 87
Aspire 5910 Exploded Diagram 88
TravelMate 4520 FRU List 89
TravelMate 4520 Series Model Configurations 107
Appendix A 107
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Table of Contents
Test Compatible Components 113
Appendix B 113
Technical Specifications 117
117
Appendix C 1 117
117
Index 127
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Table of Contents
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