Acer Aspire 7120 Service Guide

							TravelMate 7520/7520G/7220 Series 
Aspire 7420/7120 Series
Service Guide
    
                                                                                                                                     PRINTED IN TAIWAN Service guide files and updates are available
on the ACER/CSD web; for more information, 
please refer to http://csd.acer.com.tw 
						

							II
Revision History
Please refer to the table below for the updates made on TravelMate 7520/7520G/7220 Series and Aspire 
7420/7120 Series service guide.
DateChapterUpdates 
						

							III
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 is a registered trademark of Intel Corporation.
Pentium and Pentium II/III are trademarks of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective holders. 
						

							IV
Conventions
The following conventions are used in this manual:
SCREEN MESSAGESDenotes actual messages that appear 
on screen.
NOTEGives bits and pieces of additional 
information related to the current 
topic.
WARNINGAlerts you to any damage that might 
result from doing or not doing specific 
actions.
CAUTIONGives precautionary measures to 
avoid possible hardware or software 
problems.
IMPORTANTReminds you to do specific actions 
relevant to the accomplishment of 
procedures. 
						

							V
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 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.
2.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. 
						

							VI 
						

							1
Table of Contents
System Specifications  1
 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
System Block Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Your Acer Notebook tour   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Front View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Closed Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Left View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Right View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
Bottom Panel   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Indicators   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Easy-Launch Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
Touchpad Basics   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Using the Keyboard   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Lock Keys and embedded numeric keypad   . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Windows Keys   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Hot Keys  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Special Key  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Acer Empowering Technology   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Empowering Technology password   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Acer eNet Management   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Acer ePower Management    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Acer ePresentation Management    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Acer eDataSecurity Management    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Acer eLock Management   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Acer eRecovery Management   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Acer eSettings Management   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Windows Mobility Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
Using the System Utilities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Acer Bio-Protection (for selected models)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
NTI Shadow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
Acer GridVista (dual-display compatible)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Launch Manager  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
Norton Internet Security   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Hardware Specifications and Configurations   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
System Utilities  41
BIOS Setup Utility  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Navigating the BIOS Utility  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
Advanced   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Exit   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
BIOS Flash Utility  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Remove HDD/BIOS Utility   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Machine Disassembly and Replacement  59
Disassembly Requirements   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
General Information   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Pre-disassembly Instructions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Disassembly Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
External Module Disassembly Process   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 
						

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Table of Contents
External Modules Disassembly Flowchart   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Removing the Battery Pack   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Removing the SD dummy card  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Removing the PC and ExpressCard dummy cards   . . . . . . . . . . . . . . . . . . . . . .63
Removing the Lower Cover   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Removing the Secondary HDD Cover   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Removing the Secondary HDD Bracket and Connector  . . . . . . . . . . . . . . . . . . .66
Removing the DIMM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Removing the WLAN Board Modules  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Removing the Hard Disk Drive Module  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Removing the Optical Drive Module  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  70
Main Unit Disassembly Process  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Main Unit Disassembly Flowchart  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Removing the Modem Board   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Removing the Heatsink Fan Module  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  74
Removing the CPU and VGA Heatsink Module   . . . . . . . . . . . . . . . . . . . . . . . . .75
Removing the CPU  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  76
Removing the VGA board (for Discrete model only)  . . . . . . . . . . . . . . . . . . . . . .77
Removing the Middle Cover and the Power Board  . . . . . . . . . . . . . . . . . . . . . . .78
Removing the Keyboard  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Removing the LCD Module  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Separating the Upper Case from the Lower Case . . . . . . . . . . . . . . . . . . . . . . .  83
Removing the Launch Board   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Removing theTouch Pad Board Module  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Removing the Main Board   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Removing the ODD Board Module  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Removing the Speaker Modules  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Removing the USB Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
 LCD Module Disassembly Process  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
LCD Module Disassembly Flowchart   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Main Screw List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Removing the LCD Bezel  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Removing the LCD module with the Brackets   . . . . . . . . . . . . . . . . . . . . . . . . . .97
Removing the Inverter Board and FPC Cable   . . . . . . . . . . . . . . . . . . . . . . . . . .98
Removing the LCD Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Removing the Left and Right Hinge   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Removing the Antennas  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Removing the Internal Microphone and Web Camera   . . . . . . . . . . . . . . . . . . .101
Troubleshooting 103
System Check Procedures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
External Diskette Drive Check   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
External CD-ROM Drive Check   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Keyboard or Auxiliary Input Device Check  . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Memory check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
Power System Check  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
Touchpad Check  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Power-On Self-Test (POST) Error Message   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
Index of Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
Phoenix BIOS Beep Codes   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Index of Symptom-to-FRU Error Message  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Intermittent Problems  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Undetermined Problems  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122 
						

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Table of Contents
Jumper and Connector Locations  123
Top View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Bottom View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
FRU (Field Replaceable Unit) List  129
TravelMate 7520/7520G/7220/7220G Exploded Diagram  . . . . . . . . . . . . . . . . . . . .130
Model Definition and Configuration  140
TravelMate 7520/7520G/7220/7220G Series  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Test Compatible Components  163
Microsoft® Windows® Vista Environment Test   . . . . . . . . . . . . . . . . . . . . . . . . . . . .164
Online Support Information  167
Index 169 
						

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Table of Contents