Toshiba Satellite A105-S4547 User manual

Satellite A100/A105 / TECRA A7 Maintenance Manual
Toshiba Personal Computer
Satellite A100/A105
TECRA A7
(PSAA8/PSAA9)
(PTA70/PTA71)
(PSAAx)
Maintenance Manual
TOSHIBA CORPORATION

ii
S/ No.

Satellite A100/A105 / TECRA A7 Maintenance Manual iii
Copyright
© 2005 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 Satellite A100/A105 / TECRA A7 Maintenance Manual
First edition JAN. 2006
Disclaimer
The information presented in this manual has been reviewed and validated for accuracy. The
included set of instructions and descriptions are accurate for the Satellite A100/A105 / TECRA A7
at the time of this manual's production. However, succeeding computers and manuals are subject to
change without notice. Therefore, Toshiba assumes no liability for damages incurred directly or
indirectly from errors, omissions, or discrepancies between any succeeding product and this manual.
Trademarks
Intel and Pentium are registered trademarks of Intel Corporation.
IBM, IBM PC/XT, PC/AT, PS/2 and OS/2 are registered trademarks of IBM Corporation.
MS-DOS and Windows XP home edition are registered trademarks of Microsoft Corporation.
Sound Blaster and Pro are trademarks of Creative Technology Ltd.
UNIX is a registered trademark of X/Open Company Ltd.
NetWare are registered trademarks of Novell, Inc.
All other properties are trademarks or registered trademarks of their respective holders.

iv Satellite A100/A105 / TECRA A7 Maintenance Manual
Preface
This maintenance manual describes how to perform hardware service maintenance for the Toshiba
Personal Computer Satellite A100/A105 / TECRA A7, referred to as Satellite A100/A105 /
TECRA A7 in this manual.
The procedures described in this manual are intended to help service technicians isolate faulty Field
Replaceable Units (FRUs) and replace them in the field.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important information to your attention.
Each of these messages will be italicized and identified as shown below.
DANGER:“Danger” indicates the existence of a hazard that could result in death or
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 service providers to ensure the following safety precautions are adhered
to strictly.
?Be sure to fasten screws securely with the right screwdriver. If a 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, RTC battery or backup battery, 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.

Satellite A100/A105 / TECRA A7 Maintenance Manual v
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the Satellite A100/A105 / TECRA A7
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
?Keyboard scan/character codes
?Key layout
?Wiring diagrams
?BIOS Rewrite Procedures

vi Satellite A100/A105 / TECRA A7 Maintenance Manual
Conventions
This manual uses the following formats to describe, identify, and highlight terms and operating
procedures.
Acronyms
On the first appearance and whenever necessary for clarification acronyms are enclosed in
parentheses following their definition. For example:
Read Only Memory (ROM)
Keys
Keys are used in the text to describe many operations. The key top symbol as it appears on the
keyboard is printed in boldface type.
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 + Pause (Break) means
you must hold down Ctrl and at the same time press Pause (Break). If three keys are used, hold
down the first two and at the same time press the third.
User input
Text that you are instructed to type in is shown in the boldface type below:
DISKCOPY A: B:
The display
Text generated by the XXXXX that appears on its display is presented in the type face below:
Format complete
System transferred

Satellite A100/A105 / TECRA A7 Maintenance Manual vii
Table of Contents
Chapter 1 Hardware Overview
1.1 Features.................................................................................................................................1
1.2 System Unit Components.......................................................................................................9
1.3 2.5-inch HDD......................................................................................................................15
1.4 DVD-ROM Drive................................................................................................................16
1.5 CD-RW/DVD-ROM Drive .................................................................................................17
1.6 DVD Super Multi (+-R Double Layer).................................................................................18
1.7 Power Supply......................................................................................................................19
1.8 Batteries ..............................................................................................................................20
1.1.1 Main Battery............................................................................................20
1.1.2 Battery Charging Control..........................................................................20
1.1.3 RTC Battery.............................................................................................21
Chapter 2 Troubleshooting
2.1 Outline .....................................................................................................................2-1
2.2 Basic Flowchart........................................................................................................2-2
2.3 Power Supply...........................................................................................................2-6
Procedure 1 Power Icon Check............................................................................2-6
Procedure 2 Connection Check.............................................................................2-8
Procedure 3 Replacement Check ..........................................................................2-8
2.4 System Board...........................................................................................................2-9
Procedure 3 Replacement Check ......................................................................2-10
2.5 2.5-inch HDD ........................................................................................................2-11
Procedure 1 Message Check ..............................................................................2-11
Procedure 2 Partition Check........................................................................2-11
Procedure 3 Format Check ..........................................................................2-12
Procedure 4 Test Program Check.................................................................2-13

viii Satellite A100/A105 / TECRA A7 Maintenance Manual
Procedure 5 Connector Check and Replacement Check ...............................2-14
2.6 Keyboard...............................................................................................................2-15
Procedure 1 Test Program Check ........................................................................2-15
Procedure 2 Connector Check and Replacement Check.......................................2-15
2.7 Display...................................................................................................................2-16
Procedure 1 External Monitor Check............................................................2-16
Procedure 2 Test Program Check.................................................................2-16
Procedure 3 Connector Check and Replacement Check ...............................2-16
2.8 ODD (Optical Disk Drive)......................................................................................2-18
Procedure 1 ODD Cleaning Check...............................................................2-18
Procedure 2 Test Program Check.................................................................2-18
Procedure 3 Connector Check and Replacement Check ...............................2-18
2.9 LAN ......................................................................................................................2-20
Procedure 1 Test Program Check.................................................................2-20
Procedure 2 Connector Check and Replacement Check ...............................2-20
2.10 SD/MS/MS pro/MMC/XD Card(Optional)............................................................2-21
Procedure 1 Test Program Check.................................................................2-21
Procedure 2 Connector Check .....................................................................2-21
2.11 Finger Print(Optional) .............................................................................................2-22
Procedure 1 Test Program Check.................................................................2-22
Procedure 2 Connector Check .....................................................................2-22
2.12 3D Sensor..............................................................................................................2-23
Procedure 1 Test Program Check.................................................................2-23
Procedure 2 Replacement Check..................................................................2-23
2.13 Parallel Port(Optional) ............................................................................................2-24
Procedure 1 Test Program Check.................................................................2-24
Procedure 2 Connector Check .....................................................................2-24
2.14 Audio Test .............................................................................................................2-25
Procedure 1 Test Program Check ........................................................................2-25
Procedure 2 Connector Check and Replacement Check.......................................2-25

Satellite A100/A105 / TECRA A7 Maintenance Manual ix
2.15 IEEE 1394 Test......................................................................................................2-26
Procedure 1 Test Program Check.................................................................2-26
Procedure 2 Connector Check .....................................................................2-26
2.16 Cooling Module......................................................................................................2-27
Procedure 1 Test Program Check.................................................................2-27
Procedure 2 Connector Check and Replacement Check ...............................2-27
Chapter 3 Diagnostic Programs
3.1 General........................................................................................................................1
3.2 Quick Start...................................................................................................................3
3.2.1 Quick Test .................................................................................................3
3.2.2 Customization Test .....................................................................................3
3.2.3 Keyboard Layout test.................................................................................7
3.2.4 Hotkey Test ...............................................................................................8
3.2.5 Audio Play Test..........................................................................................8
3.2.6 Audio Record Test.....................................................................................8
3.2.7 DMI Read..................................................................................................8
3.2.8 DMI Write.................................................................................................9
3.2.9 3D Sensor Test ........................................................................................10
3.2.10 FPRD Test..............................................................................................16
3.2.11 FENR Test..............................................................................................16
3.2.12 IrDA ManMaster Test..............................................................................16
3.2.13 IrDA ManSlave Test ................................................................................17
3.2.14 System Information...................................................................................17
3.2.15 View Logs................................................................................................19
3.2.16 Exit to MS DOS.......................................................................................19
3.2.17 The Diagnostics Screen Explanation..........................................................19
3.3 Options ......................................................................................................................23
3.3.1 Overview .................................................................................................23
3.3.2 Batch Parameters Configuration................................................................24

xSatellite A100/A105 / TECRA A7 Maintenance Manual
3.3.3 Item’s Parameters Configuration...............................................................26
3.3.4 Load Batch Parameters ............................................................................27
3.3.5 Save Batch Parameters.............................................................................28
3.3.6 LOG Parameters Setting...........................................................................28
3.3.7 Specify LOG Viewer................................................................................29
3.3.8 Display LOG File .....................................................................................30
3.3.9 LOG Viewer............................................................................................30
3.3.10 LOG File Sample .....................................................................................32
3.4 Subtests .....................................................................................................................33
3.5 System Test................................................................................................................36
3.6 Memory Test..............................................................................................................40
3.7 Storage ......................................................................................................................46
3.8 Video.........................................................................................................................50
3.9 Communication (COMM) ..........................................................................................59
3.10 Peripheral...................................................................................................................61
3.11 Error Codes and description.......................................................................................63
3.12 Quick Test Item List......................................................................................................i