Acer Aspire 7420 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...

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...

VI 

1
Table of Contents
System Specifications  1
 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
System Block Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Your Acer Notebook tour   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Front View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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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   . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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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...

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Table of Contents