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

Acer TM 4520 SG.book Page II Friday, June 22, 2007 5:43 PM

III

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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VII

Table of Contents

Features 1

System Tour 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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VIII

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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