Toshiba Satellite 1400 Series User manual

Toshiba Personal Computer
Satellite 1400/2400 Series
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-364/365

ii Satellite 1400/2400 Maintenance Manual (960-364/365)
Copyright
© 2002 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 Personal Computer Satellite 1400/2400 Series Maintenance Manual
First edition May 2002
Disclaimer
This manual has been validated and reviewed for accuracy. The instructions and descriptions
it contains are accurate for the TOSHIBA 1400/2400 Series Portable Personal Computer 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 OS/2 and PS/2 are trademarks of IBM Corporation.
Microsoft, MS-DOS, Windows, DirectSound and DirectMusic are registered trademarks of
Microsoft Corporation.
Intel and Pentium are registered trademarks, and SpeedStep is a trademark of Intel
Corporation.
Sound Blaster is a registered trademark of Creative Technology Ltd.
Centronics is a registered trademark of Centronics Data Computer Corporation.
Photo CD is a trademark of Eastman Kodak.
All other properties are trademarks or registered trademarks of their respective holders.

Satellite 1400/2400 Maintenance Manual (960-364/365) iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer Satellite 1400/2400 Series, referred to as 1400/2400 Series 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 or RTC 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.

iv Satellite 1400/2400 Maintenance Manual (960-364/365)
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the Satellite 1400/2400Series 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 assignments
! Keyboard scan/character codes
! Key layout
! Wiring diagrams
! BIOS Rewrite Procedures
! Reliability

Satellite 1400/2400 Maintenance Manual (960-364/365) v
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 computer that appears on its display is presented in the type face
below:
Format complete
System transferred

vi Satellite 1400/2400 Maintenance Manual (960-364/365)

Satellite 1400/2400 Maintenance Manual (960-364/365) vii
Table of Contents
Chapter 1 Hardware Overview
1.1 Features ....................................................................................................................1-1
1.2 System Unit Block Diagram ....................................................................................1-9
1.3 3.5-inch Floppy Disk Drive....................................................................................1-19
1.4 2.5-inch Hard Disk Drive.......................................................................................1-20
1.5 CD-ROM Drive......................................................................................................1-21
1.6 DVD-ROM Drive...................................................................................................1-22
1.7 CD-R/RW Drive.....................................................................................................1-24
1.8 Multi Drive.............................................................................................................1-26
1.9 Power Supply .........................................................................................................1-28
1.10 Batteries..................................................................................................................1-30
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting .......................................................................................................2-1
2.2 Troubleshooting Flowchart......................................................................................2-3
2.3 Power Supply Troubleshooting................................................................................2-7
2.4 System Board Troubleshooting..............................................................................2-23
2.5 FDD Troubleshooting ............................................................................................2-35
2.6 HDD Troubleshooting............................................................................................2-38
2.7 Keyboard Troubleshooting.....................................................................................2-43
2.8 Display Troubleshooting........................................................................................2-46
2.9 DVD-ROM and CD-RW/DVD-ROM Troubleshooting........................................2-48
2.10 Modem Troubleshooting........................................................................................2-50
2.11 LAN Troubleshooting............................................................................................2-52
2.12 Sound Troubleshooting..........................................................................................2-54

viii Satellite 1400/2400 Maintenance Manual (960-364/365)
Chapter 3 Tests and Diagnostics
3.1 The Diagnostic Test .................................................................................................3-1
3.2 Executing the Diagnostic Test .................................................................................3-3
3.3 Subtest Names..........................................................................................................3-7
3.4 System Test ..............................................................................................................3-9
3.5 Memory Test..........................................................................................................3-10
3.6 Keyboard Test........................................................................................................3-12
3.7 Display Test............................................................................................................3-17
3.8 Floppy Disk Test....................................................................................................3-21
3.9 Printer Test.............................................................................................................3-23
3.10 Async Test..............................................................................................................3-25
3.11 Hard Disk Test .......................................................................................................3-27
3.12 Real Timer Test......................................................................................................3-30
3.13 NDP Test................................................................................................................3-32
3.14 Expansion Test.......................................................................................................3-33
3.15 CD-ROM/DVD-ROM Test....................................................................................3-35
3.16 Error Code and Error Status Names.......................................................................3-36
3.17 Hard Disk Test Detail Status..................................................................................3-39
3.18 Head Cleaning........................................................................................................3-41
3.19 Log Utilities............................................................................................................3-42
3.20 Running Test..........................................................................................................3-44
3.21 Floppy Disk Drive Utilities....................................................................................3-46
3.22 System Configuration.............................................................................................3-51
3.23 SETUP....................................................................................................................3-53
3.24 Wireless LAN Test Program..................................................................................3-71
3.25 Sound/LAN/Modem Test Program........................................................................3-76

Satellite 1400/2400 Maintenance Manual (960-364/365) ix
Chapter 4 Replacement Procedures
4.1 General.....................................................................................................................4-1
4.2 HDD .......................................................................................................................4-15
4.3 Memory Modules...................................................................................................4-19
4.4 Modem Daughter Card...........................................................................................4-22
4.5 Wireless LAN Card................................................................................................4-25
4.6 Keyboard................................................................................................................4-29
4.7 Power Switch Board...............................................................................................4-33
4.8 Top Cover with Display Assembly........................................................................4-35
4.9 Optical Disk Drive .................................................................................................4-40
4.10 FDD........................................................................................................................4-43
4.11 Touch Pad...............................................................................................................4-45
4.12 Battery Board .........................................................................................................4-47
4.13 HDD Connector Board...........................................................................................4-49
4.14 RTC Battery ...........................................................................................................4-51
4.15 Sound Board...........................................................................................................4-53
4.16 CD Switch Board ...................................................................................................4-55
4.17 DC-IN Cable ..........................................................................................................4-58
4.18 Cooling Fan............................................................................................................4-61
4.19 System Board .........................................................................................................4-65
4.20 PC Card Slot...........................................................................................................4-68
4.21 Speakers .................................................................................................................4-71
4.22 CPU........................................................................................................................4-75
4.23 Display Mask..........................................................................................................4-80
4.24 FL Inverter Board...................................................................................................4-83
4.25 LCD Module ..........................................................................................................4-85
4.26 Antenna Coaxial Cables.........................................................................................4-89
4.27 LCD/FL Cable........................................................................................................4-92
4.28 TFT FL (Model 14.1 LG.Philips)...........................................................................4-95
4.29 TFT FL (Model 14.1 Samsung) ...........................................................................4-103
4.30 TFT FL (Model 14.1 SHARP).............................................................................4-113

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4.31 TFT FL (Model 14.1 CHI MEI)...........................................................................4-121
4.32 TFT FL (Model 14.1 Toshiba LTM14C433).......................................................4-127
4.33 TFT FL (Model 14.1 Toshiba LTM14C501).......................................................4-140
4.34 TFT FL (Model 15.0 LG.Philips).........................................................................4-151
4.35 TFT FL (Model 15.0 Samsung) ...........................................................................4-159
4.36 TFT FL (Model 15.0 Toshiba).............................................................................4-167
4.37 TFT FL (Model 15.0 SHARP).............................................................................4-174
4.38 TFT FL (Model 15.0 SXGA Toshiba).................................................................4-191
4.39 TFT FL (Model 15.0 SXGA SHARP) .................................................................4-203
Appendices
Appendix A Handling the LCD Module..........................................................................A-1
Appendix B Board Layout............................................................................................... B-1
Appendix C Pin Assignments.......................................................................................... C-1
Appendix D Keyboard Scan/Character Codes.................................................................D-1
Appendix E Key Layout...................................................................................................E-1
Appendix F Wiring Diagram............................................................................................F-1
Appendix G BIOS Rewrite Procedures ...........................................................................G-1
Appendix H EC/KBC Rewrite Procedures......................................................................H-1
Appendix I Reliability......................................................................................................I-1