Toshiba Portege M100 User manual

Toshiba Personal Computer
PORTEGE M100
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-452

ii PORTEGE M100 Maintenance Manual (960-452)
Copyright
© 2003 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 PORTEGE M100 Maintenance Manual
First edition July 2003
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 PORTEGE M100 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
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.

PORTEGE M100 Maintenance Manual (960-452)iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the Toshiba
Personal Computer PORTEGE M100, referred to as M100 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.
qBe 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.
qIf 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 PORTEGE M100 Maintenance Manual (960-452)
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the PORTEGE M100 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:
qHandling the LCD module
qBoard layout
qPin assignments
qKeyboard scan/character codes
qKey layout
qWiring diagrams
qBIOS Rewrite Procedures
qReliability

PORTEGE M100 Maintenance Manual (960-452)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 PORTEGE M100 Maintenance Manual (960-452)
Table of Contents
Chapter 1 Hardware Overview
1.1 Features ......................................................................................................................1-1
1.2 System Unit Block Diagram.........................................................................................1-6
1.3 3.5-inch Floppy Disk Drive (USB External)................................................................ 1-10
1.4 2.5-inch Hard Disk Drive........................................................................................... 1-11
1.5DVD-ROMDrive ..................................................................................................... 1-13
1.6 CD-RW/DVD-ROM Drive ....................................................................................... 1-14
1.7Power Supply............................................................................................................ 1-15
1.8Batteries.................................................................................................................... 1-18
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting........................................................................................................... 2-1
2.2 Troubleshooting Flowchart........................................................................................... 2-2
2.3 Power Supply Troubleshooting..................................................................................... 2-6
2.4 System Board Troubleshooting................................................................................... 2-17
2.5 FDD Troubleshooting................................................................................................ 2-28
2.6 HDD Troubleshooting................................................................................................ 2-31
2.7 Keyboard Troubleshooting......................................................................................... 2-36
2.8 Display Troubleshooting............................................................................................. 2-38
2.9 DVD-ROMDrive Troubleshooting............................................................................ 2-41
2.10 CD-RW/DVD-ROM Drive Troubleshooting.............................................................. 2-43
2.11 Modem Troubleshooting............................................................................................ 2-45
2.12 LAN Troubleshooting................................................................................................ 2-47
2.13 Bluetooth Troubleshooting.......................................................................................... 2-48
2.14 Wireless LAN Troubleshooting.................................................................................. 2-52
2.15 Sound Troubleshooting .............................................................................................. 2-56

PORTEGE M100 Maintenance Manual (960-452)vii
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............................................................................................................. 3-12
3.6 Keyboard Test .......................................................................................................... 3-13
3.7 Display Test............................................................................................................... 3-16
3.8 Floppy Disk Test ....................................................................................................... 3-19
3.9 Printer Test................................................................................................................ 3-21
3.10 Async Test................................................................................................................ 3-23
3.11 Hard Disk Test.......................................................................................................... 3-25
3.12 Real Timer Test......................................................................................................... 3-28
3.13 NDP Test.................................................................................................................. 3-30
3.14 Expansion Test .......................................................................................................... 3-31
3.15 CD-ROM/DVD-ROM Test...................................................................................... 3-32
3.16 Error Code and Error Status Names .......................................................................... 3-33
3.17 Hard Disk Test Detail Status ...................................................................................... 3-36
3.18 Head Cleaning........................................................................................................... 3-38
3.19 Log Utilities ............................................................................................................... 3-39
3.20 Running Test.............................................................................................................. 3-41
3.21 Floppy Disk Drive Utilities......................................................................................... 3-43
3.22 System Configuration.................................................................................................3-48
3.23 SETUP...................................................................................................................... 3-50
3.24 Wireless LAN Test Program (Cisco).......................................................................... 3-70
3.25 Wireless LAN Test Program (Atheros) ...................................................................... 3-73
3.26 Wireless LAN Test Program (Calexico)..................................................................... 3-76
3.27 Sound/LAN/Modem Test Program............................................................................ 3-77
3.28 Bluetooth Test Program ............................................................................................. 3-81

viii PORTEGE M100 Maintenance Manual (960-452)
3.29 IEEE1394 Test Program............................................................................................ 3-91

PORTEGE M100 Maintenance Manual (960-452)ix
Chapter 4 Replacement Procedures
4.1 General........................................................................................................................ 4-1
4.2 HDD......................................................................................................................... 4-12
4.3 Slim Select Bay Options............................................................................................. 4-16
4.4 Wireless LAN Card................................................................................................... 4-18
4.5 RTC Battery.............................................................................................................. 4-23
4.6 Keyboard.................................................................................................................. 4-27
4.7 Memory Module ....................................................................................................... 4-31
4.8 Palm Rest and IPS Board .......................................................................................... 4-33
4.9 Bluetooth Board........................................................................................................ 4-38
4.10 Sound/FIR Board ...................................................................................................... 4-40
4.11 Modem Daughter Card.............................................................................................. 4-43
4.12 Wireless Communication Switch Board ...................................................................... 4-45
4-13 Top Cover with Display Assembly ............................................................................. 4-47
4.14 Speakers................................................................................................................... 4-52
4.15 System Board............................................................................................................ 4-55
4.16 PC Card Slot............................................................................................................. 4-59
4.17 I/O Board.................................................................................................................. 4-62
4.18 Display Mask ............................................................................................................ 4-65
4.19 FL Inverter Board...................................................................................................... 4-68
4.20 LCD Module............................................................................................................. 4-70
4.21 LCD/LED Cable ....................................................................................................... 4-73
4.22 Antenna Coaxial Cables............................................................................................. 4-77
4.23 TFT FL (Model12.1 Toshiba)................................................................................... 4-82

xPORTEGE M100 Maintenance Manual (960-452)
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 Diagrams ..............................................................................................F-1
Appendix G BIOS Rewrite Procedures ...............................................................................G-1
Appendix H EC/KBC Rewrite Procedures..........................................................................H-1
Appendix IReliability..........................................................................................................I-1

PORTEGE M100 Maintenance Manual (960-452)xi

Chapter 1
Hardware Overview

1 Hardware Overview
1-ii PORTEGE M100 Maintenance Manual (960-452)

1 Hardware Overview
PORTEGE M100 Maintenance Manual (960-452) 1-iii
Chapter 1 Contents
1.1 Features .......................................................................................................................1-1
1.2 System Unit Block Diagram..........................................................................................1-6
1.3 3.5-inch Floppy Disk Drive (USB External) ................................................................1-10
1.4 2.5-inch Hard Disk Drive............................................................................................1-11
1.5 DVD-ROM Drive ......................................................................................................1-13
1.6 CD-RW/DVD-ROMDrive........................................................................................1-14
1.7Power Supply.............................................................................................................1-15
1.8 Batteries.....................................................................................................................1-18
1.8.1 Main Battery.........................................................................................1-18
1.8.2 Battery LED (Main Battery / 2nd Battery)...............................................1-18
1.8.3 Battery Charging Control.......................................................................1-19
1.8.4 RTC battery..........................................................................................1-20

1 Hardware Overview
1-iv PORTEGE M100 Maintenance Manual (960-452)
Figures
Figure 1-1Front of the computer.......................................................................................1-5
Figure 1-2 System unit configuration...................................................................................1-5
Figure 1-3System unit block diagram ...............................................................................1-6
Figure 1-43.5-inch FDD.................................................................................................1-10
Figure 1-52.5-inch HDD................................................................................................1-11
Figure 1-6DVD-ROM drive...........................................................................................1-13
Figure 1-7CD-RW/DVD-ROMdrive.............................................................................1-14
Tables
Table 1-13.5-inch FDD specifications............................................................................1-10
Table 1-22.5-inch HDD dimensions...............................................................................1-11
Table 1-32.5-inch HDD specifications ...........................................................................1-12
Table 1-4DVD-ROM drive specifications .....................................................................1-13
Table 1-5CD-RW/DVD-ROMdrive specifications........................................................1-14
Table 1-6Power supply board output rating....................................................................1-16
Table 1-7Battery specifications ......................................................................................1-18
Table 1-8Time required for quick charges ......................................................................1-19
Table 1-9RTC battery charging/data preservation time ...................................................1-20

1.1 Features 1 Hardware Overview
PORTEGEM100 Maintenance Manual (960-452)1-1
1
1.1 Features
The Toshiba PORTEGE M100 Personal Computer uses extensive Large Scale Integration
(LSI), and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to
provide compact size, minimum weight, low power usage and high reliability. This computer
incorporates the following features and benefits: The product configuration is BTO/CTO-
compatible so that a system can be designed to suit a specific purpose.
qProcessor
PORTEGE M100 computer is equipped with anIntel Pentium®M Processor.
Intel Pentium®M Processor
A 1.20GHzIntel Pentium®M Processor with a 1.20GHz internal clock, 400MHz
FSB and 1.180V/0.956V core operation
qCache Memory
64KB primary cache (in CPU) and 1MB secondary cache (in CPU)
qMemory
Two DDR SO-DIMM slots are available for installation of PC2100 compatible 128,
256, 512MB and 1GB memory modules. The memory is expandable up to 2GB.
qHDD
Single 40GB or 60GB internal drive. 2.5 inch x 9.5mm height.
qFDD
An external three-mode 3.5-inch FDD, which connects with a USB port(option),
supports 720KB and 1.44MB formats and enables booting from system FD.(BTO)
qDVD-ROM
Afull-size and runs either 12cm (4.72-inch) or 8cm (3.15-inch) DVD/CDswithout an
adapter. It plays DVDs at a maximum 8-speed and reads CDs at maximum 24-speed.
qCD-RW/DVD-ROM Drive
This drive is a CD-R/RW and DVD drive. It is full-size and runs either 12cm (4.72-
inch) or 8cm (3.15-inch) DVD/CDswithout an adapter.It plays DVDs at a maximum
8-speed, writes CD-R at maximum 24-speed, writes CD-RW at maximum 24-speed,
and reads CDs at maximum 24-speed.

1 Hardware Overview 1.1 Features
1-2PORTEGE M100 Maintenance Manual (960-452)
qKeyboard
An-easy-to-use 85/86-key keyboard provides a numeric keypad overlay for fast
numeric data entry or for cursor and page control. The keyboard also includes two
keys that have special functions in Microsoft Windows XP.It supports software that
uses a 101-or 102-key enhanced keyboard.
qAccuPoint II
This pointer control stick, located in the center of the keyboard, provides convenient
control of the cursor without requiring desk space for a mouse. The computer also has
two mouse buttons and two scroll buttons on this side of the keyboard.
qDisplay
The display comes in the following type:
• 12.1” XGA-TFT color display, resolution 1024(H)×768(V), 16M colors
A high-resolutionexternal monitor connected to the computer can display up to
2048(H)×1536(V), at 16M colors.
qBatteries
The computer has two batteries: a lithium-ion main battery pack and RTC battery
(that backs up the Real Time Clock and CMOS memory). The secondary Battery can
be used, which is attached in the slim select bay.
qSlot for expansion memory
One SO-DIMM slots are available for expansion memory of 128, 256, 512MB and
1GB-memory modules. One module must be installed in slot Aas standard memory.
qUniversal Serial Bus (USB)
The computer comes with two USB ports supporting USB 2.0. The USB enables
daisy-chain connection of up to 127 USB-equipped devices. It is designed for easy
configuration by a Plug-and-Play operating system and provides hot insertion/ejection
capability.
qInfrared port
The infrared port is compatible with Fast InfraRed (FIR) standards enabling wireless
up to 4Mbps data transfer with Infrared Data Association (IrDA) 1.1 compatible
devices.
qIEEE1394
Depending on the model, one port of IEEE1394 connector is mounted. I/O devices
(digital video camera, etc) supporting IEEE1394 can be connected.

1.1 Features 1 Hardware Overview
PORTEGEM100 Maintenance Manual (960-452)1-3
qBluetooth
Bluetooth wireless technology eliminates the need for cables between electronic
devices such as computers and printers. Bluetooth provides fast, reliable, and secure
wireless communication in a small space.
qInternal LAN
The computer is equipped with LAN circuits that support Ethernet LAN (10 megabits
per second, 10BASE-T) and Fast Ethernet LAN (100 mega bits per second, 100
BASE-TX).It also supports Wakeup on LAN (WOL) and Magic Packet.
qWireless LAN (mini PCI Card slot (1 slot, BTO))
In some models customer to order (BTO), a Mini PCI Card with wireless LAN
functions is available.
This function ca be switched on and off by a switch on the computer.
qPC Card Slot
A PC Card Slot accommodates two 5mm cards (Type II) or one 10.5mm card (Type
III). The computer supports the PC Card Standard Release 2.01 cards and for
advanced cards, including PC Card 16's Multifunction cards and CardBus 32-bit
cards.
qSlim Select Bay
The Slim Select Bay can accommodate the following modules: DVD-ROM drive,
CD-RW/DVD-ROM drive, optional secondary battery pack and optional Slim Select
Bay HDD Adaptor.
An optional battery pack can be installed in the Slim Select Bay to increase the
computer’s battery power and operating time.
An optio nal 2.5” HDD can be installed in the Slim Select Bay to increase the
computer’s data storage capacity. The capacity of the optional HDD is 40GB or
60GB.
qSD Card Slot
The computer is equipped with a SD Card slot that can accommodate Secure Digital
flash memory cards with capacities of 8MB, 16MB, 32MB, 64MB,256MB and
512MB. SD cards let the user easily transfer data from devices, such as digital
cameras and Personal Digital Assistants, that use SD Card flash-memory. The cards
have a high-level of security and copy protection features.

1 Hardware Overview 1.1 Features
1-4PORTEGE M100 Maintenance Manual (960-452)
qSound system
This computer includes sound controllers that support AC’97 I/F (AC-Link) Revision
2.2. The sound system is equipped with the following:
•Stereo speakers
•Built-in Microphone
•Volume control knob
•Headphone jack
•External microphone jack
qInternal modem
The internal modem is equipped as a modem daughter card (MDC).
The internal modem provides capability for data and fax communication and supports
ITU-TV.90. For data reception it operates at 56,000bps and for data transmission it
operates at 33,600bps. For fax transmission it operates at 14,400bps. The speed of
data transfer and fax depends on analog telephone line conditions. It has an RJ11
modem jack for connecting to a telephone line.
qPresentation button
This button changes the display by LCD to by LCD+CRT and vice versa.
qTOSHIBA Console button
This button launches an application automatically.The default is TOSHIBA Console.

1.1 Features 1 Hardware Overview
PORTEGEM100 Maintenance Manual (960-452)1-5
The computer is shown in Figure 1-1. The system unit configuration is shown in Figure 1-2.
Figure 1-1 Front of the computer
Figure 1-2 System unit configuration