Toshiba M400 - Portege - Core 2 Duo 1.83 GHz User manual

[CONFIDENTIAL]
1
Toshiba Personal Computer
PORTEGE M400
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-541
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ii [CONFIDENTIAL] PORTEGE M400 Maintenance Manual (960-541)
Copyright
© 2006 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual
cannot be reproduced in any form without the prior written permission of Toshiba. No patent
liability is assumed, with respect to the use of the information contained herein.
Toshiba PORTEGE M400 Maintenance Manual
First edition January 2006
Disclaimer
This manual has been validated and reviewed for accuracy. The instructions and descriptions
it contains are accurate for the Toshiba PORTEGE M400 at the time of this manual's
production. However, succeeding computers and manuals are subject to change without
notice. Toshiba assumes no liability for damages incurred directly or indirectly from errors,
omissions or discrepancies between the computer and the manual.
Trademarks
IBM is a registered trademark and IBM PC is a trademark of International Business
Machines Corporation.
Intel, Intel SpeedStep, Intel Core and Centrino are trademarks or registered trademarks of
Intel Corporation or its subsidiaries in the United States and other countries/regions.
Windows and Microsoft are registered trademarks of Microsoft Corporation.
Photo CD is a trademark of Eastman Kodak.
Sonic RecordNow! is a registered trademark of Sonic Solutions.
Bluetooth is a trademark owned by its proprietor and used by TOSHIBA under license.
i.LINK is trademark and registered trademark of Sony Corporation.
InterVideo and WinDVD are registered trademarks of InterVideo Inc.
WinDVD Creator is trademark of InterVideo Inc.
Other trademarks and registered trademarks not listed above may be used in this manual.
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PORTEGE M400 Maintenance Manual (960-541) [CONFIDENTIAL] iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the
The procedures described in this manual are intended to help service technicians isolate
(FRUs) and replace them in the field.
Four types of messages are used in this manual to bring important information to your
a
DANGER: “Danger” indicates the existence of a hazard that could result in death or
Toshiba Personal Computer PORTEGE M400, referred to as PORTEGE M400 in this
manual.
faulty Field Replaceable Units
SAFETY PRECAUTIONS
ttention. Each of these messages will be italicized and identified as shown below.
serious bodily injury, if the safety instruction is not observed.
WARNING: “Warning” indicates the existence of a hazard that could result in bodily
injury, if the safety instruction is not observed.
CAUTION: “Caution” indicates the existence of a hazard that could result in property
damage, if the safety instruction is not observed.
NOTE: “Note” contains general information that relates to your safe maintenance
service.
Improper repair of the computer may result in safety hazards. Toshiba requires service
technicians and authorized dealers or servic
pre
with the ISO/DIS 8764-1:1996. If a
ttery, be sure to use only the same model
battery or an equivalent battery recommended by Toshiba. Installation of the wrong
battery can cause the battery to explode.
e providers to ensure the following safety
cautions are adhered to strictly.
Be sure to fasten screws securely with the right screwdriver. Be sure to use the PH
Point size “0” and “1” screwdrivers complying
screw is not fully fastened, it could come loose, creating a danger of a short circuit,
which could cause overheating, smoke or fire.
If you replace the battery pack or RTC ba
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iv [CONFIDENTIAL] PORTEGE M400 Maintenance Manual (960-541)
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the Satellite R10 system unit and each
FRU.
Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve
FRU problems.
Chapter 3 Test and Diagnostics describes how to perform test and diagnostic
operations for maintenance service.
Chapter 4 Replacement Procedures describes the removal and replacement of the
FRUs.
Appendices The appendices describe the following:
Handling the LCD module
Board layout
Pin assignment
Keyboard scan/character codes
Key layout
Wiring Diagrams
BIOS Rewrite Procedures
EC/KBC Rewrite Procedures
Reliability
Maintenance of TOSHIBA RAID
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PORTEGE M400 Maintenance Manual (960-541) [CONFIDENTIAL] v
Conventions
This manual uses the following formats to describe, identify, and highlight terms and
ocedures.
sary for clarification acronyms are enclosed in
ition. For example:
ad Only Memory (ROM)
Keys are used in the text to describe many operations. The key top symbol as it appears on
rinted in boldface type.
+ Pause
(Break) means you must hold down Ctrl and at the same time press Pause (Break). If
e used, hold down the first two and at the same time press the third.
ex d to type in is shown in the boldface type below:
Y A: B:
Text generated by the Satellite R10 that appears on its display is presented in the type face
bel
Format complete
System transferred
operating pr
Acronyms
On the first appearance and whenever neces
parentheses following their defin
Re
Keys
the keyboard is p
Key operation
Some operations require you to simultaneously use two or more keys. We identify such
operations by the key top symbols separated by a plus (+) sign. For example, Ctrl
three keys ar
User input
T t that you are instructe
DISKCOP
The display
ow:
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