Acer Travelmate 4050 Service Guide

							TravelMate 4050
Service Guide
                                                                                                                                     PRINTED IN TAIWAN
Service CD P/N:WE DO NOT PRODUCE CD FOR THIS MODEL
               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 4050 service guide.
DateChapterUpdates 
						

							III
Copyright
Copyright © 2004 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. 
						

							VII
Table of Contents
Chapter 1 System Specifications  1
Features  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
System Block Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Board Layout   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Outlook View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Indicators   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Embedded Numberic Keypad  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Launch Keys  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Touchpad   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Hardware Specifications and Configurations   . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Chapter 2 System Utilities  31
BIOS Setup Utility  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   32
Advanced   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Exit   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Chapter 3 Machine Disassembly and Replacement  41
General Information   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Disassemble the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   43
Disassemble the HDD Module, ODD and Memory Module . . . . . . . . . . . . . . . .   44
Disassemble the ODD Module  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   44
Disassemble the Memory  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Disassemble the Keyboard/LCD Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Disassemble the Keyboard  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Disassemble the Power Switch Board, Thermal and MDC . . . . . . . . . . . . . . . . . 45
Disassemble the LCD module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Disassemble the Main Unit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Disassemble the HDD Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Chapter 4 Troubleshooting  52
System Check Procedures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
External Diskette Drive Check   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
External CD-ROM Drive Check   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Keyboard or Auxiliary Input Device Check   . . . . . . . . . . . . . . . . . . . . . . . . . 53
Memory Check   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Power System Check  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Power Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Check the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   55
Touchpad Check  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   55
Display Check  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   55
Sound Check   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
PhoenixBIOS POST Tasks and Beep Codes  . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Index of Symptom-to-FRU Error Message  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   59
Undetermined Problems  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   62
Chpater 5 Jumper and Connector Locations  63
Top View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Bottom View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Clear CMOS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 
						

							VIII
Table of Contents
Chapter 6 FRU (Field Replaceable Unit) List  66
Exploded Diagram   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
TravelMate 4050 Parts    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Appendix A Model Definition and Configuration 79
Appendix B Test Compat ible Components 80
Microsoft Windows XP / Professional Environment  Test  . . .  . . .  . .  . . .  . . .  . .  . .81
Appendix C Online Support Information 83 
						

							Chapter 11
Features
This model is a project to accommodate Intel Centrino technology to provide end user better mobile 
experience with entry price. It is a 2 spindle with normal 4:3 for factor.
Performance
TIntel® Pentium® M processor 710/715/725/735/745/755/765 at 1.4 ~ 2.1 GHz, 2MB L2, 400 MHz 
FSB
TIntel® Pentium® M processor at 1.5/1.6/1.7 GHz, 1MB L2 cache, 400MHz FSB
TIntel® Celeron® M processor at 1.2/1.3/1.4/1.5 GHz, 512 L2 cache, 400MHz FSB
TIntel 855GME Chipset, ICH4-M
T256/512MB of DDR 333 memory, upgradeable to 2GB using dual soDIMM moduels 
THigh-capacity, Enhanced-IDE hard disk
TLi-Ion main battery pack
TWireless solution with integrated Intel®  PRO/Wireless 2200BG network connection 802.11b/g 
Inprocomm 802.11 b/g, dual band Wi-Fi CERTIFIEDTM solution; Acer SignalUp wireless 
technology support
Display
T14.1” or 15.0” Thin-Film Transistor (TFT) displaying at 1024x768 XGA and 1400x1050 SXGA 
resolution 
TIntel® 855GME integrated 3D AGP graphics featuring Intel® Extreme Graphics 2 technology and 
up to 64MB VRAM, supporting dual independent display
T16.7 million colours
TMicrosoft® DirectX® 9.0 support
TSimultaneous LCD and CRT display at 1024 x 768 pixel reslouation, 70Hz External resolution/
refresh rate:
T800x600: 200/460/120/100/85/75/60 Hz
T1024x768: 200/160/120/100/85/75/60 Hz
T1280x1024:160/120/100/85/75/60 Hz
T1400x1050: 60 Hz
T1600x1200: 120/100/85/75/60 Hz
T2048x1536: 75/60 Hz
TS-video/TV-out (NTSC/PAL) support 
TMPEG-2/DVD hardware-assisted capability
System Specifications
Chapter  1 
						

							2Chapter 1
Video 
TVGA is integrated in Intel 855GME (Montara-GME) chipset
TSimultaneous display on LCD and CRT
T3D Windows accelerator
TSupports 15/16/24/32 bbp True Color on LCD & Dual View 
THardware expansion for high resolution LCD
TSupport TV-out feature by extra TV-Encoder (optional) 
Audio
TAC97 Codec with Realtek ALC250
TBuilt-in two stereo speakers
TNo internal Microphone
Storage
TODD
TFixed Type
TOption for 12.7mm DVD Combo, DVD Dual and DVD Super Multi
TLocated in front side
THDD
T9.5mm, 2.5” HDD Support
T30/40/60/80GB ATA100 hard disc drive
TPCI Bus Master Enhanced IDE
TUltra DMA 66/100 support
TEasy install with one protecting screw from right side
Connectivity
TModem 56K ITU V.92 modem with PTT approval; Wake on-Ring ready
T10/100 Mbps Fast Ethernet LAN; Wake-on-LAN ready
TIntegrated Intel® PRO/Wireless 2200BG network connection 802.11b/g dual band Wi-Fi 
CERTIFIEDTM solution, Inprocomm 802.11b/g 
TAcer SignalUp wireless technology support
TWireless PAN integrated Bluetooth®
Battery
T4/8 cells Li-ion 18650 size (2150mAh) main battery pack with 31/63W Capacity 
TSupports 2.5/5 hrs operation time (battery mark 2002, in XGA resolution)
TApproximated  charging time 3~8 hrs (System On) or 2.5hr (System Off) 
TSmart battery pack, SMbus
I/O Ports
TThree USB 2.0 ports 
TIEEE 1394 port (Optional)
TEthernet (RJ-45) port
TModem (RJ-11) port
TS-Video/TV-Out port (NTSC/PAL) (Optional) 
						

							Chapter 13
TParallel port
TExternal display (VGA) port
TMicrophone Jack
THeadphones/Speaker/Line-Out port
TInfrared (FIR) port
TPC Card Slot (one Type II)
TDC-In jack for AC adaptor