Toshiba Tecra 9100 Series User manual

Toshiba Personal Computer
TECRA 9100 Series
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-347

ii TECRA 9100 Maintenance Manual (960-347)
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 TECRA 9100 Series Maintenance Manual
First edition March 2002
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 DynaBook V1, V2 Series 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.

TECRA 9100 Maintenance Manual (960-347) iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer DynaBook V1, V2 Series, referred to as V1, V2 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 TECRA 9100 Maintenance Manual (960-347)
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the DynaBook V1, V2 Series 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

TECRA 9100 Maintenance Manual (960-347) 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 TECRA 9100 Maintenance Manual (960-347)

TECRA 9100 Maintenance Manual (960-347) 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 (USB External)..........................................................1-17
1.4 2.5-inch Hard Disk Drive.......................................................................................1-18
1.5 CD-ROM Drive......................................................................................................1-19
1.6 DVD-ROM Drive...................................................................................................1-20
1.7 CD-R/RW Drive.....................................................................................................1-22
1.8 COMBO Drive.......................................................................................................1-23
1.9 Power Supply .........................................................................................................1-24
1.10 Batteries..................................................................................................................1-26
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..............................................................................2-16
2.5 FDD Troubleshooting ............................................................................................2-28
2.6 HDD Troubleshooting............................................................................................2-31
2.7 Keyboard and PAD I/F Troubleshooting...............................................................2-36
2.8 Display Troubleshooting........................................................................................2-39
2.9 CD-R/RW Drive Troubleshooting.........................................................................2-41
2.10 COMBO 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

viii TECRA 9100 Maintenance Manual (960-347)
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............................................................................................................3-16
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......................................................................................................3-29
3.13 NDP Test................................................................................................................3-31
3.14 Expansion Test.......................................................................................................3-32
3.15 CD-ROM/DVD-ROM Test....................................................................................3-34
3.16 LAN Test................................................................................................................3-35
3.17 Error Code and Error Status Names.......................................................................3-36
3.18 Hard Disk Test Detail Status..................................................................................3-39
3.19 Head Cleaning........................................................................................................3-41
3.20 Log Utilities............................................................................................................3-42
3.21 Running Test..........................................................................................................3-44
3.22 Floppy Disk Drive Utilities....................................................................................3-46
3.23 System Configuration.............................................................................................3-51
3.24 SETUP....................................................................................................................3-53
3.25 Modem Test Program.............................................................................................3-72
3.26 IEEE1394 Test Program.........................................................................................3-73
3.27 Wireless LAN Test Program..................................................................................3-75
3.28 Bluetooth Test Program .........................................................................................3-80
3.29 Sound Test Program...............................................................................................3-89

TECRA 9100 Maintenance Manual (960-347) ix
Chapter 4 Replacement Procedures
4.1 General.....................................................................................................................4-1
4.2 HDD .......................................................................................................................4-14
4.3 Memory Modules (Option) ....................................................................................4-18
4.4 Slim Select Bay Module.........................................................................................4-21
4.5 Bluetooth Board .....................................................................................................4-23
4.6 Keyboard................................................................................................................4-26
4.7 Wireless LAN Card................................................................................................4-30
4.8 Top Cover with Display Assembly........................................................................4-33
4.9 Modem Daughter Card...........................................................................................4-38
4.10 Sound/FIR Board....................................................................................................4-40
4.11 RTC Battery ...........................................................................................................4-43
4.12 Speakers .................................................................................................................4-46
4.13 IPS Board ...............................................................................................................4-51
4.14 LED Board .............................................................................................................4-53
4.15 I/O Board................................................................................................................4-55
4.16 Connector Board ....................................................................................................4-57
4.17 PC Card Slot...........................................................................................................4-59
4.18 System Board .........................................................................................................4-61
4.19 Cooling Fan............................................................................................................4-63
4.20 CPU........................................................................................................................4-66
4.21 Display Mask..........................................................................................................4-69
4.22 FL Inverter Board...................................................................................................4-72
4.23 LCD Module ..........................................................................................................4-74
4.24 Antenna Coaxial Cables.........................................................................................4-78
4.25 LCD/FL Cable........................................................................................................4-84
4.26 TFT FL (Model 14.1 Toshiba)...............................................................................4-89
4.27 TFT FL (Model 14.1 SHARP LQ141X1LH63)...................................................4-101
4.28 TFT FL (Model 14.1 SHARP LQ141F1LH23) ...................................................4-109

x TECRA 9100 Maintenance Manual (960-347)
Appendices
Appendix A Handling the LCD Module..........................................................................A-1
Appendix B Board Layout............................................................................................... B-1
Appendix C Pin Assignments.......................................................................................... C-1
Appendix D Character Codes ..........................................................................................D-1
Appendix E Key Layout...................................................................................................E-1
Appendix F Reliability.....................................................................................................F-1
Appendix G BIOS Rewrite Procedures ...........................................................................G-1
Appendix H EC/KBC Rewrite Procedures......................................................................H-1
Appendix I Reliability......................................................................................................I-1
Appendix J Connection for Check................................................................................... J-1

Chapter 1
Hardware Overview

1 Hardware Overview
1-ii TECRA 9100 Maintenance Manual (960-347)

1 Hardware Overview
TECRA 9100 Maintenance Manual (960-347) 1-iii
Chapter 1 Contents
1.1 Features......................................................................................................................1-1
1.2 System Unit Block Diagram......................................................................................1-9
1.3 3.5-inch Floppy Disk Drive (USB External)...........................................................1-17
1.4 2.5-inch Hard Disk Drive......................................................................................... 1-18
1.5 CD-ROM Drive ....................................................................................................... 1-19
1.6 DVD-ROM Drive .................................................................................................... 1-20
1.7 CD-R/RW Drive ...................................................................................................... 1-22
1.8 COMBO Drive.........................................................................................................1-23
1.9 Power Supply...........................................................................................................1-24
1.10 Batteries...................................................................................................................1-26
1.10.1 Main Battery.......................................................................................1-26
1.10.2 Battery Charging Control...................................................................1-27
1.10.3 RTC battery........................................................................................1-28

1 Hardware Overview
1-iv TECRA 9100 Maintenance Manual (960-347)
Figures
Figure 1-1 Front of the computer.........................................................................................1-7
Figure 1-2 System unit configuration.................................................................................. 1-8
Figure 1-3 System unit block diagram.................................................................................1-9
Figure 1-4 3.5-inch FDD (USB External) .........................................................................1-17
Figure 1-5 2.5-inch HDD...................................................................................................1-18
Figure 1-6 CD-ROM drive ................................................................................................1-19
Figure 1-7 DVD-ROM drive .............................................................................................1-20
Figure 1-8 CD-R/RW drive ...............................................................................................1-22
Figure 1-9 COMBO drive..................................................................................................1-23
Tables
Table 1-1 3.5-inch FDD specifications..............................................................................1-17
Table 1-2 2.5-inch HDD specifications.............................................................................1-18
Table 1-3 CD-ROM drive specifications...........................................................................1-19
Table 1-4 Toshiba DVD-ROM drive specifications..........................................................1-20
Table 1-4 TEAC DVD-ROM drive specifications ............................................................1-21
Table 1-5 CD-R/RW drive specifications..........................................................................1-22
Table 1-6 COMBO drive specifications............................................................................1-23
Table 1-7 Power supply output rating................................................................................1-25
Table 1-8 Battery specifications........................................................................................1-26
Table 1-9 Time required for quick charges ....................................................................... 1-27
Table 1-10 RTC battery charging/data preservation time .................................................1-28

1.1 Features 1 Hardware Overview
TECRA 9100 Maintenance Manual (960-347) 1-1
1 Features
1.1 Features
The Toshiba TECRA 9100 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.
 Microprocessor
The 9100 Series computer is equipped with an Intel Mobile Pentium 4Processor,
which incorporates a math co-processor, a 20KB L1 cache memory and a 512KB L2
cache memory. The processor runs with one of the following speeds:
• Intel Mobile Pentium 4Processor 1.70GHz (1.30V) / 1.20GHz (1.20V)
• Intel Mobile Pentium 4Processor 1.60GHz (1.30V) / 1.20GHz (1.20V)
This processor operates at 1.30V-1.20V and 133MHz bus clock. A 12KB level-1
cache memory and a 512KB level-2 cache memory are built in.
 Chipset
The 9100 Series is equipped with Brookdale-M MCH-M (Graphics and Memory
Controller Hub), Brookdale-M ICH3-M (I/O Controller Hub3) and YEBISU3S.
 Video Controller
• VGAC S3 Super Savage/IXC 86C584 (Tristar 64C)
• 3.3 volt operation
• Connected to AGP4X bus
Video RAM, VRAM 16MB is integrated in the VGAC.
 Memory
Two expansion memory slots are provided to accommodate 2.5V drive PC2100
DDR-SDRAM memory units with a total capacity of 1024 MB maximum.
The following three memory modules are available.
• 128 MB (8M×16bit, 3.3V,SDRAM 8P) or (16M×16bit, 3.3V,SDRAM 4P)
• 256 MB (16M×16bit, 3.3V,SDRAM 8P)
• 512 MB (32M×16bit, 3.3V,SDRAM 8P) or (16M×16bit, 3.3V,SDRAM 16P)

1 Hardware Overview 1.1 Features
1-2 TECRA 9100 Maintenance Manual (960-347)
 Built-in HDD
The computer has a 2.5-inch HDD. The following four capacities are available.
• 15 GB (9.5 mm thick)
• 20 GB (9.5 mm thick)
• 30 GB (9.5 mm thick)
• 40 GB (9.5 mm thick)
 FDD
A 3.5-inch FDD accommodates 2HD (1.44MB) or 2DD (720KB) disks.
The FDD is connected to an external USB port.
 Slim Select Bay
A CD-ROM, DVD-ROM, CD-R/RW or COMBO drive, 2nd HDD or 2nd Battery can
be installed in the Slim Select Bay. In addition, a second HDD may be purchased as
an option for use in the system.
 CD-ROM Drive
A full-size, maximum 24-speed 640MB CD-ROM drive, contains an AT Attachment
Packet Interface (ATAPI) controller, and supports the following formats: CD-DA,
CD-ROM, Photo-CD (Multi-session), and CD-Extra (CD Plus).
 CD-R/RW Drive
A full-size, maximum 24-speed CD-ROM drive, maximum 8-speed CD-R writing
and maximum 8-speed CD-RW writing, maximum 14-speed CD-RW reading,
maximum 24-speed CD-ROM/CD-RW reading, contains an AT Attachment Packet
Interface (ATAPI) controller, and supports the following formats: CD-DA, CD-ROM,
CD-R, CD-RW, Photo-CD (Multi-session), and CD-Extra (CD Plus).
 DVD-ROM Drive
A full-size and runs either 12cm (4.72-inch) or 8cm (3.15-inch) DVD/CDs without an
adaptor. It plays DVDs at a maximum 8-speed and reads CDs at maximum 24-speed.
 Multi Drive
This drive is a combination DVD-ROM and CD-R/RW Drive. It is full-size and runs
either 12cm (4.72-inch) or 8cm (3.15-inch) DVD/CDs without an adaptor. It plays
DVDs at a maximum 8-speed, writes CD-R at maximum 8-speed CD-R, writes CD-
RW at maximum 4-speed, and reads CDs at maximum 24-speed

1.1 Features 1 Hardware Overview
TECRA 9100 Maintenance Manual (960-347) 1-3
 Display
The display comes in the following three types:
• 14.1” XGA-TFT color display, resolution 1024×768, 16M colors
• 14.1” SXGA+-TFT color display, resolution 1400×1050, 16M colors
In addition, a video controller and an 16MB VRAM enables an external monitor to
display 16M colors at a resolution of 1024×768 pixels or 256 colors at a resolution of
1400×1050 pixels.
 Keyboard
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2000/XP. It supports
software that uses a 101- or 102-key enhanced keyboard.
 Batteries
The computer has two batteries: a rechargeable Lithium-Ion main battery pack and
RTC battery (that backs up the Real Time Clock and CMOS memory).
 Universal Serial Bus (USB)
Two USB ports are provided. They enable daisy-chain connection of up to 127 USB-
equipped devices and 12Mbps (full speed) or 1.5Mbps (low speed) serial data transfer.
They are designed for easy configuration by a PnP operating system and provide hot
insertion/ejection capability.
 IEEE 1394 port
The computer comes with one IEEE 1394 port. It allows for the connection of up to
63 devices and provides 100, 200 and 400Mbits/sec transfer rates. It supports hot
insertion/ejection capability so there is no need to restart the computer when the user
attaches a new peripheral.
 Serial port
A standard, 9-pin, serial port enables connection of such serial devices as a serial
printer, mouse or modem. A Universal Asynchronous Receiver/Transmitter (UART)
is 16550A equivalent.
 External monitor port
The port enables connection of an external monitor, which is recognized
automatically by Video Electronics Standards Association (VESA) Display Data
Channel (DDC) 2B compatible functions.

1 Hardware Overview 1.1 Features
1-4 TECRA 9100 Maintenance Manual (960-347)
 PS/2mouse/keyboard port
Either a PS/2 compatible keyboard or a PS/2 compatible mouse can be connected to
the port.
 PC card slot
A PC card slot (PCMCIA) accommodates two 5mm cards (Type II) or one 10.5mm
(Type III) card. These slots support 16-bit PC cards and Card Bus (By help from
Windows98/2000) PC cards (32-bit).
 SD Card
An SD Card Slot can accommodate Secure Digital flash memory cards with
capacities of 8MB, 16MB, 32MB, 64MB and 128MB. SD cards let you easily
transfer data from devices, such as digital cameras and Personal Digital Assistants,
that use SD Card flash-memory.
 Docking interface port
A 242-pin, docking interface port enables connection of an optional Port Replicator
2001. It provides additional features as follows:
• RJ-45 LAN jack, RT11 Modem jack
• External monitor port
• Parallel port and Serial port
• PS/2 Mouse port and Keyboard port
• DC IN socket
• Security lock slot
• Audio line-in, line out jack
• Two USB ports and an IEEE 1394 port
• DVI port
 AccuPoint II
A pointing device, the AccuPoint II, located in the center of the keyboard and control
buttons at the base of the keyboard enables control of the on-screen pointer and
scrolling of the windows without requiring desk space for a mouse.

1.1 Features 1 Hardware Overview
TECRA 9100 Maintenance Manual (960-347) 1-5
 Infrared port
The infrared port is compatible with Fast InfraRed (FIR) standards enabling cableless
4 Mbps, 1.15 Mbps, 115.2 kbps, 57.6 kbps, 38.4 kbps, 19.2 kbps or 9.6 kbps data
transfer with Infrared Data Association (IrDA) 1.1 compatible external devices.
 Sound system
In addition, this sound system is equipped with the following:
• PC/PCI and Serialized IRQ
• AC-3 and I2C Serial Input (ZV-port)
• SPDIF and AC-2 I/F (AC-Link 2.0)
• Stereo speakers
• Built-in Microphone (Mono)
• Volume control knob
• Stereo Headphone jack
• External microphone jack
 Video-out jack
The RCA video jack enables to transfer NTSC or PAL data to external devices.
 Internal modem (BTO)
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. It is also
equipped with Speakerphone and TAM (Telephony Answering Machine) function.
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.
 Internal 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.
 Bluetooth (BTO)
The computer is equipped with Bluetooth communications standards enable wireless
connection to compatible devices, including an optical Internet adaptor.

1 Hardware Overview 1.1 Features
1-6 TECRA 9100 Maintenance Manual (960-347)
 Mini PCI Card slot (1 slot, BTO)
In some models built to order (BTO), a Mini PCI Card with wireless LAN functions
is available.
• Wireless LAN The Mini PCI Card for wireless LAN is compatible with other
LAN systems based on Direct Sequence Spread Spectrum radio
technology that complies with the IEEE 802.11 Standard
(Revision B). It supports data transfer up to 11 Mbit/s. It has
Frequency Channel Selection (2.4GHz) and allows roaming over
multiple channels.
The front of the computer is shown in figure 1-1.
Figure 1-1 Front of the computer