Toshiba tecra m1, tecra v1 Service Manual

Toshiba Personal Computer

TECRA M1

Maintenance Manual

TOSHIBA CORPORATION

File Number 960-436

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 TECRA M1 Maintenance Manual

First edition February 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 TECRA M1 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, Intel SpeedStep and Penteium are trade marks 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 owned by its proprietor and used by TOSHIBA under license.
Bluetooth is a trademark owned by its proprietor and used by TOSHIBA under license.

ii TECRA M1 Maintenance Manual (960-436)

Preface

This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer TECRA M1.

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.

TECRA M1 Maintenance Manual (960-436) iii

The manual is divided into the following parts:

Chapter 1 Hardware Overview describes the TECRA M1 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

iv TECRA M1 Maintenance Manual (960-436)

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

TECRA M1 Maintenance Manual (960-436) v

vi TECRA M1 Maintenance Manual (960-436)

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) ........................................................... 1-16

1.4 2.5-inch Hard Disk Drive......................................................................................... 1-17

1.5 CD-ROM Drive ....................................................................................................... 1-19

1.6 DVD-ROM Drive .................................................................................................... 1-20

1.7 CD-RW/DVD-ROM Drive......................................................................................1-22

1.8 DVD Multi Drive.....................................................................................................1-24

1.9 Keyboard..................................................................................................................1-26

1.10 TFT Color Display...................................................................................................1-27

1.11 Power Supply ........................................................................................................... 1-29

1.12 Batteries ................................................................................................................... 1-32

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 .............................................................................................. 2-30

2.6 HDD Troubleshooting ............................................................................................. 2-33

2.7 Keyboard and Touch pad Troubleshooting.............................................................. 2-38

2.8 Display Troubleshooting.......................................................................................... 2-41

2.9 CD-ROM Drive Troubleshooting ............................................................................ 2-43

2.10 DVD-ROM, CD-RW/DVD-ROM, and DVD Multi Drive Troubleshooting.......... 2-45

2.11 Modem Troubleshooting.......................................................................................... 2-47

2.12 LAN Troubleshooting.............................................................................................. 2-49

2.13 Bluetooth Troubleshooting ...................................................................................... 2-50

TECRA M1 Maintenance Manual (960-436) vii

2.14 Wireless LAN Troubleshooting............................................................................... 2-54

2.15 Sound Troubleshooting............................................................................................ 2-58

2.16 SD Card Slot Troubleshooting................................................................................. 2-61

viii TECRA M1 Maintenance Manual (960-436)

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.............................................................................................................. 3-10

3.5 Memory Test............................................................................................................ 3-13

3.6 Keyboard Test.......................................................................................................... 3-15

3.7 Display Test ............................................................................................................. 3-19

3.8 Floppy Disk Test...................................................................................................... 3-23

3.9 Printer Test............................................................................................................... 3-25

3.10 Async Test ............................................................................................................... 3-27

3.11 Hard Disk Test ......................................................................................................... 3-29

3.12 Real Timer Test........................................................................................................ 3-32

3.13 NDP Test.................................................................................................................. 3-34

3.14 Expansion Test......................................................................................................... 3-35

3.15 CD-ROM/DVD-ROM Test ..................................................................................... 3-36

3.16 Wireless LAN Test (Agere)..................................................................................... 3-37

3.17 Wireless LAN Test (Atheros) .................................................................................. 3-42

3.18 Wireless LAN Test (Calexico)................................................................................. 3-45

3.19 Sound/Modem Test.................................................................................................. 3-46

3.20 IEEE1394 Test ......................................................................................................... 3-50

3.21 Bluetooth Test.......................................................................................................... 3-52

3.22 Error Code and Error Status Names......................................................................... 3-61

3.23 Hard Disk Test Detail Status ................................................................................... 3-64

3.24 Head Cleaning.......................................................................................................... 3-66

3.25 Log Utilities ............................................................................................................. 3-67

3.26 Running Test............................................................................................................ 3-69

3.27 Floppy Disk Drive Utilities...................................................................................... 3-71

3.28 System Configuration .............................................................................................. 3-76

3.29 SETUP ..................................................................................................................... 3-78

TECRA M1 Maintenance Manual (960-436) ix

Chapter 4 Replacement Procedures

4.1 General....................................................................................................................... 4-1

4.2 Battery Pack ............................................................................................................... 4-9

4.3 Optional PC Card..................................................................................................... 4-12

4.4 Optional SD Card..................................................................................................... 4-14

4.5 HDD......................................................................................................................... 4-15

4.6 Slim Select Bay Mosule........................................................................................... 4-20

4.7 Modem Daughter Card ............................................................................................ 4-24

4.8 CPU.......................................................................................................................... 4-27

4.9 Keyboard.................................................................................................................. 4-32

4.10 Memory Module ...................................................................................................... 4-36

4.11 Sensor/Switch Board................................................................................................ 4-38

4.12 Touch Pad ................................................................................................................ 4-40

4.13 Wireless LAN Card.................................................................................................. 4-44

4.14 Bluetooth Module .................................................................................................... 4-47

4.15 Display Assembly .................................................................................................... 4-49

4.16 LED Board ............................................................................................................... 4-53

4.17 Sound Board............................................................................................................. 4-55

4.18 System Board/RTC Battery/DC-IN Jack................................................................. 4-57

4.19 USB Board ............................................................................................................... 4-62

4.20 Fan............................................................................................................................ 4-64

4.21 Display Mask ........................................................................................................... 4-66

4.22 FL Inverter ............................................................................................................... 4-68

4.23 LCD Module ............................................................................................................ 4-70

4.24 Wireless LAN Antenna/Bluetooth Antenna/Display Cover/Speaker...................... 4-74

4.25 Fluorescent Lamp..................................................................................................... 4-85

x TECRA M1 Maintenance Manual (960-436)

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

TECRA M1 Maintenance Manual (960-436) xi

xii TECRA M1 Maintenance Manual (960-436)

Chapter 1

Hardware Overview

1 Hardware Overview

1-ii TECRA M1 Maintenance Manual (960-436)

1 Hardware Overview

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)............................................................1-16

1.4 2.5-inch Hard Disk Drive .........................................................................................1-17

1.5 CD-ROM Drive ........................................................................................................1-19

1.6 DVD-ROM Drive.....................................................................................................1-20

1.7 CD-RW/DVD-ROM Drive.......................................................................................1-22

1.8 DVD Multi Drive .....................................................................................................1-24

1.9 Keyboard ..................................................................................................................1-26

1.10 TFT Color Display ...................................................................................................1-27

1.10.1 LCD Module .......................................................................................1-27

1.10.2 FL Inverter Board ...............................................................................1-28

1.11 Power Supply............................................................................................................1-29

1.12 Batteries....................................................................................................................1-32

1.12.1 Main Battery .......................................................................................1-32

1.12.2 Battery Charging Control....................................................................1-33

1.12.3 RTC battery.........................................................................................1-34

TECRA M1 Maintenance Manual (960-436) 1-iii

1 Hardware Overview

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) ......................................................................1-16

Figure 1-5 2.5-inch HDD ...............................................................................................1-17

Figure 1-6 CD-ROM drive .............................................................................................1-19

Figure 1-7 DVD-ROM drive ..........................................................................................1-20

Figure 1-8 CD-RW/DVD-ROM drive ...........................................................................1-22

Figure 1-9 DVD Multi drive ..........................................................................................1-24

Figure 1-10 Keyboard ......................................................................................................1-26

Figure 1-11 LCD module .................................................................................................1-27

Tables

Table 1-1 3.5-inch FDD specifications .........................................................................1-16

Table 1-2 2.5-inch HDD specifications ........................................................................1-17

Table 1-3 CD-ROM drive specifications ......................................................................1-19

Table 1-4 DVD-ROM drive specifications ...................................................................1-20

Table 1-5 CD-RW/DVD-ROM drive specifications ....................................................1-22

Table 1-6 DVD Multi drive specifications ...................................................................1-24

Table 1-7 LCD module specifications ..........................................................................1-27

Table 1-8 FL inverter board specifications ...................................................................1-28

Table 1-9 Power supply output rating...........................................................................1-30

Table 1-10 Battery specifications ...................................................................................1-32

Table 1-11 Time required for quick charges...................................................................1-33

Table 1-12 RTC battery charging/data preservation time...............................................1-34

1-iv TECRA M1 Maintenance Manual (960-436)

1.1 Features 1 Hardware Overview

1 Features

1.1 Features

The Toshiba TECRA M1 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/CTO­compatible so that a system can be designed to suit a specific purpose.

 Microprocessor

The TECRA M1 computer is equipped with an Intel Banias Processor, which incorporates
a math co-processor, a 32KB L1 cache memory and a 1MB L2 cache memory. The
processor runs with one of the following speeds:

Intel Banias Processor 1.30GHz (1.35V) / 1.20GHz (0.85V) •

•

Intel Banias Processor 1.40GHz (1.35V) / 1.20GHz (0.85V)

•

Intel Banias Processor 1.50GHz (1.35V) / 1.20GHz (0.85V)

•

Intel Banias Processor 1.60GHz (1.35V) / 1.20GHz (0.85V)

This processor operates at 1.35V-0.8V and 100MHz bus clock. A 32KB level-1 cache
memory and a 1MB level-2 cache memory are built in.

 Chipset

The TECRA M1 is equipped with Intel Odem, Intel ICH4-M and YEBISU3S.

 Video Controller

The computer has a Trident XP4-MCM VGA controller. The internal VRAM is 32MB
(64MB is also supported.), DDR250MHz.

 Memory

Two expansion memory slots are provided to accommodate 2.5V drive PC2100 DDR­SDRAM memory units with a total capacity of 2GB (2,048MB) maximum.

The following four memory modules are available.

•

128 MB (16M×16bit×4, 2.5V, SDRAM)

•

256 MB (16M×16bit×8, 2.5V, SDRAM)

•

512 MB (32M×8bit×16, 2.5V, SDRAM)

•

1,024MB (32M×16bit×8, 2.5V, SDRAM)

TECRA M1 Maintenance Manual (960-436) 1-1

1 Hardware Overview 1.1 Features

 Built-in HDD

The computer has a 2.5-inch HDD. The following capacities are available.

30/40/50/60GB •

 USB 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-RW/DVD-ROM or DVD Multi 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, CD­ROM (Mode 1, Mode 2), CD-ROM XA Mode 2, Photo-CD (Single/multi-session), and
Enhanced CD.

 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 maximum 8-speed and reads CDs at maximum 24-speed.

 CD-RW/DVD Drive

A full-size, CD-RW/DVD drive that contains an AT Attachment Packet Interface
(ATAPI) controller. This drive reads CD-R at maximum 24-speed and reads DVD-ROM
at maximum 8-speed.

 DVD Multi Drive

This drive is a combination of 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 maximum 8-speed, writes CD-R at maximum 8-speed, writes CD-RW at maximum 4­speed, and reads CDs at maximum 24-speed.

1-2 TECRA M1 Maintenance Manual (960-436)

1.1 Features 1 Hardware Overview

 Display

The display comes in the following three types:

14.1” XGA-TFT color display, resolution 1,024×768, 16M colors •

• 14.1” SXGA+-TFT color display, resolution 1,400×1,050, 16M colors

In addition, a video controller and an 32/64MB VRAM enables an external monitor to
display 16M colors at a resolution of 1,024×768 pixels or 256 colors at a resolution of
1,400×1,050 pixels.

 Keyboard

An-easy-to-use 85(US)/86(UK)-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 (USB2.0)

Three USB ports are provided. The ports comply with the USB2.0 standard, which
enables data transfer speeds 40 times faster than USB1.1 standard. USB1.1 is also
supported.

 IEEE 1394 port

The computer comes with one IEEE 1394 port. It enables high-speed data transfer directly
from external devices such as digital video cameras.

 Parallel port

The parallel port enables connection of parallel printer or other parallel devices. (ECP
compatible)

 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.

TECRA M1 Maintenance Manual (960-436) 1-3

1 Hardware Overview 1.1 Features

 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.

 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

The PC card slot (PCMCIA) accommodates two 5mm Type II card or one Type III card.
The slot support 16-bit PC cards and Card Bus PC cards. CardBus supports 32-bit PC
cards.

 SD Card

An SD Card Slot can accommodate Secure Digital flash memory cards with various
capacities. 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

The docking interface port enables connection of an optional Advanced Port Replicator II.
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

 TOSHIBA Dual Pointing Device

The TOSHIBA Dual Pointing Device consists of Touch Pad and AccuPoint. The touch
pad and control buttons enable control of the on-screen pointer and scrolling of windows.
The pointer control stick, AccuPoint enables convenient control of the cuesor.

1-4 TECRA M1 Maintenance Manual (960-436)

1.1 Features 1 Hardware Overview

 Infrared port

The infrared port is compatible with Fast InfraRed (FIR) standards enabling cableless 4
Mbps, 1.152 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

The sound system is equipped with the following features:

AC Link and AnalogDeveices AD1981A •

•

AMP: AN12490 and NSCLM4911

•

Stereo speakers

•

Built-in Microphone (Mono)

•

Volume control knob

•

Stereo Headphone jack

•

External microphone jack

 Video-out jack

The video jack enables to transfer NTSC or PAL data to external devices connected with
S-Video cable.

 Internal modem

The internal modem is equipped as a modem daughter card (MDC).

The internal modem provides capability for data and fax communication and supports
V.90/92. 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. Both of V.90 and V.92 is supported in USA and
Canada. In other regions, only V.90 is available.

 Internal LAN

The computer is equipped with LAN circuits that support Ethernet LAN (10 megabits per
second, 10BASE-T), Fast Ethernet LAN (100 megabits per second, 100 BASE-Tx) and
Gigabit Ethernet LAN (1000megabits per second, 1000BASE-T). It also supports
Wakeup on LAN (WOL) and Magic Packet.

TECRA M1 Maintenance Manual (960-436) 1-5

1 Hardware Overview 1.1 Features

 Bluetooth (BTO)

The computer is equipped with Bluetooth (V1.1) communications standards enable
wireless connection between electronic devices such as computers and printers.

 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) only, and IEEE 802.11 Standard (Revision A, B).
Revision A supports data transfer up to 54Mbit/s. Revision B supports data transfer up to
11Mbit/s. It has Frequency Channel Selection (5GHz: Revision A/2.4GHz: Revision B)
and allows roaming over multiple channels.

 Presentation button

This button switches the display between internal display, external display, simultaneous
display and multi-monitor display.

 Brightness sensor

The Brightness sensor adjusts the brightness of LCD to the adequate brightness according
to the illuminant of the place where you are using the PC.

1-6 TECRA M1 Maintenance Manual (960-436)

1.1 Features 1 Hardware Overview

The front of the computer is shown in figure 1-1.

Figure 1-1 Front of the computer

TECRA M1 Maintenance Manual (960-436) 1-7

1 Hardware Overview 1.1 Features

The system unit configuration is shown in figure 1-2.

MDC

Figure 1-2 System unit configuration

1-8 TECRA M1 Maintenance Manual (960-436)

1.2 System Unit Block Diagram 1 Hardware Overview

1.2 System Unit Block Diagram

Figure 1-3 is a block diagram of the system unit.

1.3/1.4/1.5
/1.6GHz

HDD

9.5mm

30/40/50/

60GB

Figure 1-3 System unit block diagram

TECRA M1 Maintenance Manual (960-436) 1-9

1 Hardware Overview 1.2 System Unit Block Diagram

The system unit is composed of the following major components:

 Processor

• Intel Banias Processor 1.30GHz

– Processor core speed: 1.30GHz (Performance Mode at 1.35V) and 1.20GHz

(Battery Optimized Mode at 0.85V)
– Processor bus speed: 400MHz
– Integrated L1 cache memory: 32KB instruction cache and 32KB write-back

data cache, 4-way set associative
– Integrated L2 cache memory: 1MB ECC protected cache data array, 8-way set

associative
– Integrated NDP

• Intel Banias Processor 1.40GHz
– Processor core speed: 1.40GHz (Performance Mode at 1.35V) and 1.20GHz

(Battery Optimized Mode at 0.85V)
– Processor bus speed: 400MHz
– Integrated L1 cache memory: 32KB instruction cache and 32KB write-back

data cache, 4-way set associative
– Integrated L2 cache memory: 1MB ECC protected cache data array, 8-way set

associative
– Integrated NDP

• Intel Banias Processor 1.50GHz
– Processor core speed: 1.50GHz (Performance Mode at 1.35V) and 1.20GHz

(Battery Optimized Mode at 0.85V)
– Processor bus speed: 400MHz
– Integrated L1 cache memory: 32KB instruction cache and 32KB write-back

data cache, 4-way set associative
– Integrated L2 cache memory: 1MB ECC protected cache data array, 8-way set

associative
– Integrated NDP

• Intel Banias Processor 1.60GHz
– Processor core speed: 1.60GHz (Performance Mode at 1.35V) and 1.20GHz

(Battery Optimized Mode at 0.85V)
– Processor bus speed: 400MHz
– Integrated L1 cache memory: 32KB instruction cache and 32KB write-back

data cache, 4-way set associative
– Integrated L2 cache memory: 1MB ECC protected cache data array, 8-way set

associative
– Integrated NDP

1-10 TECRA M1 Maintenance Manual (960-436)

1.2 System Unit Block Diagram 1 Hardware Overview

 Memory

Two BTO-compatible expansion memory slots are provided. Expansion up to 2GB

(2,048MB) is available.

• DDR-SDRAM (Double Data Rate - Synchronous DRAM)

• 128 MB/256 MB/512 MB/1,024MB(1GB) selectable

– 128 MB (16M×16bit×4)
– 256 MB (16M×16bit×8)
– 512 MB (32M×8bit×16)
– 1,024MB (32M×16bit 8)

• 200 pin, SO Dual In-line Memory Modules (SO-DIMM)

• 2.5 volt operation

• Supports DDR CL2/2.5

• Supports PC2100 only

 Intel Odem (North Bridge)

• One Intel 82845MP is used.

• Features:

– Banias Processor System Bus Support
– DRAM Controller: DDR200/DDR266 Support, 1GB max
– Accelerated Graphics Port Interface: adheres to AGP2.0, AGP×4 mode
– Hub Link Interface
– 593-ball 37.5×37.5 mm FC-BGA package

 Intel ICH4-M (South Bridge)

• One Intel 82801LAM is used.

• This gate array has the following features:

– Hub Link Interface
– PCI Rev2.2 Interface (6 PCI REQ/GNT Pairs)
– BusMaster IDE Controller (Ultra ATA 100/66/33)
– USB 1.1/2.0 Controller 6 Prots (EHCI: Enhanced Host Controller)
– I/O APIC (ACPI 1.06)
– SMBus2.0 Controller
– FWH Interface (BIOS)
– LPC Interface (EC/KBC, Super I/O)
– IRQ Controller
– Serial Interrupt Controller
– Power Management Controller
– Deeper Sleep (C4) Support
– Suspend/Resume Control
– AC'97 2.2 Interface
– Internal RTC

TECRA M1 Maintenance Manual (960-436) 1-11

1 Hardware Overview 1.2 System Unit Block Diagram

– Internal LAN Controller (WfM2.0)
– 421-ball 31×31mm BGA Package

 PC Card Controller Gate Array

• One YEBISU3S gate array is used.

• This gate array has the following functions and components.

– PCI interface (PCI Revision2.2)
– CardBus/PC Card controller (Yenta2 Version2.2)
– SD memory card controller (SDHC Ver.1.2)
– SD IO card controller (Ver.1.0)
– SmartMedia controller (SMHC Ver.01/SMIL1.0)
– SIO (UART) controller (MS Debug Port Specification Ver.1.0)
– Docking station interface
– Q switch control, reset control
– External device interface

 Firmware Hub (FWH)

• One Intel 82802AB8 is used.

• This gate array has the following features:

– Intel platform compatibility
– Firmware hub hardware interface mode
– Industry-standard packages
– Two configurable interfaces
– 4Mbits of flash memory for platform code/data nonvolatile storage
– Address/Address-Multiplexed (A/A Mux) interface/mode
– Case temperature operating range
– Vcc: 3.3V ± 0.3V
– Vpp: 3.3V and 12V for fast programming (80 hours maximum)

• 4Mbits of flash memory are used as shown below:
– 64KB are used for VGA-BIOS.
– 192KB are used for system BIOS.
– 8KB are used for plug and play data area.
– 8KB are used for password security.
– 16KB are used for boot strap.
– 64KB are used for ACPI P code.
– 64KB are used for LOGO.
– 64KB are reserved for LAN BIOS.
– 32KB are reserved.

1-12 TECRA M1 Maintenance Manual (960-436)

1.2 System Unit Block Diagram 1 Hardware Overview

 VGA Controller

One Trident XP4-MCM chip is used. The video controller incorporates graphics accelerator,

video accelerator.

• Internal VRAM, 32MB DDR 250MHz (64MB is also supported.)

• Connected to AGP bus R2.0

• LCD Interface LVDS 2ch

• TV Encoder: Tvxpress2

• DVI Supported by Dock

 Sound Controller

• One AC'97Codec AD1981A chip and AC-Link controller embedded in ICH4-M

• SW sound

 EC/KBC (Embedded Controller/Keyboard Controller)

• One Mitsubishi M306K9FCLRP micon chip functions as both EC and KBC.

• EC

This controller controls the following functions:

– Power supply sequence
– Thermal conditions
– LEDs
– Beep
– Device ON/OFF
– Fan speed
– Universal I/O port
– Docker Docking Sequence
– Battery capacity check
– Forced reset
– Flash rewriting
– EC interface
– I2C communication
– EC access
– Slim Select Bay Control

• KBC
This controller has the following functions:

– Scan controller to check status of keyboard matrix
– Interface controller between the keyboard scan controller and the system
– Control of switching and simultaneous operation of the accupoint/external

PS/2 mouse and of the internal keyboard/external PS/2 keyboard

TECRA M1 Maintenance Manual (960-436) 1-13

1 Hardware Overview 1.2 System Unit Block Diagram

 PSC (Power Supply Controller)

• One TMP87PM48U chip is used.

• This controller controls the power sources.

 RS232 Driver

• One MAXIM3243 chip is used.

• This driver converts signals for interface with external equipment.

 Clock Generator

• One ICS950810AG-T is used.

• This device generates the system clock.

 Modem Controller

• One built-in modem card with Xircom Lucent SCORPIO+CSP1037B is used.

• This controller has the following functions:

– Digital line protection support
– Ring wake up support
– AC97 interface
– The following communication codes are supported

Data:
V.90 (56K bps) data communication control
V.92 (56K bps) data communication control
V.34 (33.6 K~2400)
V.32 bis (14.4K, 12K, 9600)
V.22 bis (2400, 1200)
V.22 (1200)
V.23 (1200, 600, 75)
V.21 (300)
Fax:
V.17 (14.4K, 12K, 9600, 7200)
V.29 (9600, 7200, 4800)
V.27 ter (4800, 2400)
V.21 ch2 (300)

1-14 TECRA M1 Maintenance Manual (960-436)

1.2 System Unit Block Diagram 1 Hardware Overview

 Internal LAN Controller

• One MAC incorporated with ICH4-M and PHY (Kinnereth-R 182562EP or
Kenai32N) are used for the internal chip, and are connected with RJ11/RJ45 combo
connector.

• This controller has the following functions:

• Full Duplex support at 10 Mbps/100 Mbps

– WOL support
– Magic Packet Support

 Wireless LAN

• One Mini PCI card for LAN with TI card bus controller, TI 1410 is used.

 Super I/O

• One LPC 47N227 chip is used.

• This gate array has the following features:

– Floppy Disk Controller
– Serial Port Controller
– Infrared Communications Controller
– Parallel Port Controller

 IEEE1394

• One TSB43AB22 is used.

 Sensor

• Thermal Sensor: One ADM1032AR chip is used.

• LCD Sensor: One NRS-701-1015T chip is used.

• Light Sensor: One TSL2550 chip is used.

TECRA M1 Maintenance Manual (960-436) 1-15

1 Hardware Overview 1.3 3.5-inch Floppy Disk Drive (USB External)

1.3 3.5-inch Floppy Disk Drive (USB External)

The 3.5-inch FDD is a thin, high-performance reliable drive that supports 720KB (formatted)
2DD, 1.2MB (formatted) and 1.44MB (formatted) 2HD disks.

The FDD is shown in figure 1-4. The specifications for the FDD are listed in Table 1-1.

Figure 1-4 3.5-inch FDD (USB External)

Table 1-1 3.5-inch FDD specifications

Items 720KB mode 1.2MB mode 1.44MB mode

FDD part

rate

Disk rotation speed 300rpm 360rpm 300rpm

Track density 5.3 track/mm (135TPI)

USB Full speed mode (12M bits/second)

250K bits/second

500K bits/second Data transfer

1-16 TECRA M1 Maintenance Manual (960-436)

1.4 2.5-inch Hard Disk Drive 1 Hardware Overview

1.4 2.5-inch Hard Disk Drive

The removable HDD is a random access non-volatile storage device. It has a non-removable

2.5-inch magnetic disk and mini-Winchester type magnetic heads.
The computer supports a 30GB, 40GB, 50GB and 60GB HDD.
The HDD is shown in figure 1-5. Specifications are listed in Table 1-2.

Figure 1-5 2.5-inch HDD

Table 1-2 2.5-inch HDD specifications (1/3)

Specifications

Items

Storage size (formatted) 30GB 40GB 50GB 60GB

Speed (RPM) 4,200 5,400 7,200 5,400

Data transfer speed (Mbits/s) 154.3 - 298.0 200.8 - 333.2 249.4 – 440.5 202.9-373.3

Interface transfer rate (MB/s) 100

Storage density (Kbpi) 618 607 572 632

Track density (Ktpi) 78.9 57.1 74.0 78.9

Average random seek time

(read) (ms)

TOSHIBA

HDD

2181B

TOSHIBA

HDD

2171B

TOSHIBA

12

HDD

2186B

TOSHIBA

2184B

HDD

Motor startup time (ms) 4

TECRA M1 Maintenance Manual (960-436) 1-17

1 Hardware Overview 1.4 2.5-inch Hard Disk Drive

Table 1-2 2.5-inch HDD specifications (2/3)

Specifications

Items

Storage size (formatted) 30GB 40GB

Speed (RPM) 4,200 5,400

Data transfer speed (Mbits/s) 22.1 – 42.8 27.8 – 44.1

Interface transfer rate (MB/s) 100 (MAX Ultra DMA mode)

Storage desnity (Kbpi) 716 612

Track density (Ktpi) 70.0 63.0

HITACHI

G8BC0000F310

HITACHI

G8BC00009110

Average random seek time

(read) (ms)

Motor startup time (ms) 5

13

Table 1-2 2.5-inch HDD specifications (3/3)

Specifications

Items

Storage size (formatted) 30GB 40GB

Speed (RPM) 4,200 5,400

Data transfer speed (Mbits/s) 125 – 241 160 – 297

Interface transfer rate (MB/s) 100

Storage desnity (Kbpi) 509 506 (MAX)

Track density (Ktpi) 66.4

Average random seek time

(read) (ms)

IBM

G8BC00004210

G8BC0000A110

12

IBM

Motor startup time (ms) 5

1-18 TECRA M1 Maintenance Manual (960-436)

1.5 CD-ROM Drive 1 Hardware Overview

1.5 CD-ROM Drive

The CD-ROM drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CDs. They
provide high-performance, twenty-four-speed plays on a maximum (reads 3,600 KB per
second).

The CD-ROM drive is shown in figure 1-6. Specifications are listed in Table 1-3.

Figure 1-6 CD-ROM drive

Table 1-3 CD-ROM drive specifications

Item

ATAPI Burst (Mbytes/s) 33.3 (U-DMA Transfer mode 2)

Access time (ms)

Average Random
Access
Average Full Stroke
Access

Rotation speed (rpm) (typ.) 5,136

Data Buffer Capacity (Kbytes) 128

Supported Format

CD-DA, CD-ROM Mode 1, Mode 2

CD-ROM XA Mode 2 (Form 1, Form 2)
Photo CD (Single/multi-session), Enhanced CD

TEAC specifications

(G8CC00005410)

24 x mode (Max.)

110 (except in Audio play mode)
240 (except in Audio play mode)

TECRA M1 Maintenance Manual (960-436) 1-19

1 Hardware Overview 1.6 DVD-ROM Drive

1.6 DVD-ROM Drive

The DVD-ROM drive accommodates either 12cm (4.72-inch) or 8cm (3.15-inch) DVDs.
This drive plays DVDs at maximum 8-speed and reads CDs at maximum 24-speed.

The DVD-ROM drive is shown in figure 1-7. Specifications for the DVD-ROM drive are
described in table 1-4.

Figure 1-7 DVD-ROM drive

Table 1-4 DVD-ROM drive specifications (1/2)

Item

DVD-ROM mode CD-ROM mode

ATAPI Burst (Mbytes/s) 33.3 (U-DMA Transfer mode 2)

Access time (ms) (Typ.) 90 (Single Layer)

130 (Dual Layer)

Rotation speed (rpm) 4,670 Max 5,100Max

Data Buffer Capacity (Kbytes) 512

Supported Format

DVD-ROM (3.95GB, 4.7GB) (Read)
CD-ROM Mode 1, Mode 2, CD-ROM XA, CD-I Digital

Video, Photo-CD Multisession, CD-Audio, Mixed
mode CD-ROM, CD-EXTRA, CD-TEXT, CD-R, CD­RW

HITACHI ZA2441P03

85

1-20 TECRA M1 Maintenance Manual (960-436)

1.6 DVD-ROM Drive 1 Hardware Overview

Table 1-4 DVD-ROM drive specifications (2/2)

Item

DVD-ROM mode CD-ROM mode

ATAPI Burst (Mbytes/s) 33.3 (U-DMA Transfer mode 2)

Access time (ms)

Average Random
Access

Rotation speed (rpm) 4,594 Max 5,136Max

Data Buffer Capacity (Kbytes) 256

Supported Format

DVD-ROM, DVD-R (Read)
CD-DA, CD+(E)G, CD-MIDI, CD-TEXT
CD-ROM, CD-ROM XA, CD-I
CD-I Bridge (Photo-CD, Video-CD)
Multisession CD (Photo-CD, CD-EXTRA, CD-R, CD-RW)
CD-R (Read), CD-RW (Read)

HITACHI G8CC00015410

110 (Typ.)

85 (Typ.)

TECRA M1 Maintenance Manual (960-436) 1-21

1 Hardware Overview 1.7 CD-RW/DVD-ROM Drive

1.7 CD-RW/DVD-ROM Drive

The CD-RW/DVD-ROM drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch)
CDs, CD-R/RW and DVDs. It is a high-performance drive that reads CD-R at maximum 24­speed and reads DVD-ROM at maximum 8-speed.

The CD-RW/DVD-ROM drive is shown in figure 1-8. Specifications are listed in Table 1-5.

Figure 1-8 CD-RW/DVD-ROM drive

Table 1-5 CD-RW/DVD-ROM drive specifications (1/3)

Item

ATAPI Burst (Mbytes/s) 16.7 (Mode 0 to 2, Mode 0 to 4)

Average access

time (msec.)

Data Buffer Capacity 2MB

Supported Formats CD: CD-DA, CD-ROM Mode 1, Mode 2, CD-ROM XA

CD-ROM 90

DVD-ROM 110

Mode 2 (Form 1, Form 2), Photo CD (single/multi­session), Enhanced CD, CD-TEXT

DVD: DVD-ROM, DVD-Video, DVD-R (General,

Authoring) DVD-RAM (4.7GB, 2.6GB)

Specifications

TEAC G8CC0000Q410

33.3 (Ultra DMA mode 2)

1-22 TECRA M1 Maintenance Manual (960-436)

1.7 CD-RW/DVD-ROM Drive 1 Hardware Overview

Table 1-5 CD-RW/DVD-ROM drive specifications (2/3)

Item

ATAPI Burst (Mbytes/s) 16.6 (PIO Mode 4, DMA Mode 2)

Average access

time (msec.)

Data Buffer Capacity 2MB

Supported Formats CD: CD-DA, CD-ROM, CD-ROM XA, CD-R, CD-RW

CD-ROM 130

DVD-ROM 180

Photo CD, Video CD, CD-EXTRA (CD+), CD-TEXT

DVD: DVD-Video, DVD-ROM, DVD-R (3.9GB, 4.7GB),

DVD-RW, DVD-RAM (4.7GB)

Specifications

Panasonic G8CC00010410

33.3 (Ultra DMA Mode2)

Table 1-5 CD-RW/DVD-ROM drive specifications (3/3)

Item

ATAPI Burst (Mbytes/s) 16.6 (PIO Mode 4, DMA MW Mode 2)

Specifications

HITACHI G8CC00016410

33.3 (Ultra DMA Mode2)

Average access

time (msec.)

Data Buffer Capacity 2MB

Supported Formats CD: CD-ROM Mode-1, CD-ROM XA, CD-Audio, Mixed

CD-ROM 120

DVD-ROM 110

Mode CD-ROM, Photo-CD, CD-I DV, Video CD,
CD-Plus/CD-EXTRA, CD-TEXT, CD-R, CD-RW

DVD: DVD-ROM (single layer 4.7GB, dual layer 8.5GB)

DVD-R (3.95/4.7GB), DVD-RW (4.7GB)

TECRA M1 Maintenance Manual (960-436) 1-23

1 Hardware Overview 1.8 DVD Multi Drive

1.8 DVD Multi Drive

The DVD Multi drive is capable of driving either 12cm (4.72-inch) or 8cm (3.15-inch) DVD
and CD without using an adaptor. This drive plays DVDs at maximum 8-speed, reads CDs at
maximum 24-speed, writes CD-R at maximum 8-speed, and writes CD-RW at maximum 4­speed.

The DVD Multi drive is shown in figure 1-9. Specifications are listed in Table 1-6.

Figure 1-9 DVD Multi drive

Table 1-6 DVD Multi drive specifications (1/2)

Panasonic G8CC00012410

Item

DVD-ROM mode CD-ROM mode

ATAPI Burst (Mbytes/s) 33.3 (Ultra DMA mode 2)

16.6 (PIO Mode 4, Multi-word DMA mode 2)

Access time (ms)

1/3 Stroke Access (typ.)

Data Buffer Capacity (Mbytes) 2

Supported Format CD: CD-DA, CD-ROM, CD-R/W, CD-R,

DVD: DVD-VIDEO, DVD-ROM, DVD-R

180

CD-ROM XA (except ADPCM), CD-I
Ready, Photo CD (Multi session),
Video CD, CD-EXTRA (CD+), CD­TEXT

(3.9GB, 4.7GB), DVD-RW (Ver.1.1),
DVD-RAM

130 -

CD-R/CD-RW

(Write)

CD-R, CD-RW

1-24 TECRA M1 Maintenance Manual (960-436)

1.8 DVD Multi Drive 1 Hardware Overview

Table 1-6 DVD Multi drive specifications (2/2)

TEAC

Item

DVD-ROM mode CD-ROM mode

CD-R/CD-RW

(Write)

ATAPI Burst (Mbytes/s)

Access time (ms) 110 130 -

Data Buffer Capacity (Mbytes) 2MB

Supported Format CD: CD-DA, CD-ROM Mode 1, CD-

16.7 (PIO Mode 0 to 4, Multi-word DMA mode 0 to 2)

ROM XA Mode 2 (Form 1, Form 2),
Multi-session Photo CD, CD-I,
Video CD, Enhanced CD, CD-TEXT

DVD: DVD-ROM, DVD-R (General,

Authoring), DVD-Video, DVD-RW,
DVD-RAM (4.7GB, 2.6GB/read
only)

33.3 (Ultra DMA mode 0 to 2)

CD-R, CD-RW

TECRA M1 Maintenance Manual (960-436) 1-25

1 Hardware Overview 1.9 Keyboard

1.9 Keyboard

The keyboard is mounted 85(US)/86(UK) keys that consist of character key and control key,
and in conformity with JIS. The keyboard is connected to membrane connector on the system
board and controlled by the keyboard controller.

Figure 1-10 is a view of the keyboard.

See Appendix E about a layout of the keyboard.

Figure 1-10 Keyboard

1-26 TECRA M1 Maintenance Manual (960-436)

1.10 TFT Color Display 1 Hardware Overview

1.10 TFT Color Display

The TFT color display consists of 14.1-inch XGA/SXGA+ LCD module and FL inverter
board.

1.10.1 LCD Module

The LCD module used for the TFT color display uses a backlight as the light source and can
display a maximum of 262,144 colors with 1,024 x 768 or 1,400 x 1,050 resolution. The
Trident XP4-MCM can control both internal and external XGA- or SXGA+- support displays
simultaneously.

Figure 1-11 shows a view of the LCD module and Table 1-7 lists the specifications.

Figure 1-11 LCD module

Table 1-7 LCD module specifications (1/2)

Item

14.1-inch XGA TFT (VF2092P03)

Number of Dots 1,024 (W) x 768 (H)

Dot spacing (mm) 0.297 (H) x 0.297 (V)

Display range (mm) 285.696 (H) x 214.272 (V)

Specifications

TECRA M1 Maintenance Manual (960-436) 1-27

1 Hardware Overview 1.10 TFT Color Display

Table 1-7 LCD module specifications (2/2)

Item

14.1-inch SXGA+ TFT (VF2074P01)

Number of Dots 1,400 (W) x 1,050 (H)

Dot spacing (mm) 0.204 (H) x 0.204 (V)

Display range (mm) 285.6 (H) x 214.2 (V)

Specifications

1.10.2 FL Inverter Board

The FL inverter board supplies a high frequency current to illuminate the LCD module FL.
Table 1-8 lists the FL inverter board specifications.

Table 1-8 FL inverter board specifications

Item Specifications

Voltage (V) DC 5 Input

Power (W) 7

Output

Voltage (V) 750

Current (mA) 6.00

Power (mA) 5W/7VA

1-28 TECRA M1 Maintenance Manual (960-436)

1.11 Power Supply 1 Hardware Overview

1.11 Power Supply

The power supply supplies many different voltages to the system board and performs the
following functions:

1. Checks power input to determine:

• Whether the AC adaptor is connected to the computer

• Whether the battery pack is installed and supplying power

2. Checks power supply’s internal controls:

• Battery pack charging: start, stop and voltage supplied to the battery pack

• Power supply system: Power supplied from a DC power source (AC adaptor)

• Faulty power supply: Executes forced shutdown if needed

• Logic: Power supply to various circuits

• Charging current to PWM control IC for battery pack charging

3. Controls the following aspects of the logic system

• Power supply to gate arrays

• Power on/off

4. Indicates the following:

• DC IN (sets LED to orange or green)

• Battery icon (sets LED to orange or green)

• Faulty power supply by low battery

5. Interface for the following:

• BIOS via EC/KBC

• Function mode of power supply

6. Detects the following:

• Input voltage to logic system

• Input voltage, overvoltage and input/output to battery pack

• Battery pack’s internal temperature

• Input voltage to DC power supply (output from AC adaptor)

The power supply output rating is specified in Table 1-9.

TECRA M1 Maintenance Manual (960-436) 1-29

1 Hardware Overview 1.11 Power Supply

Table 1-9 Power supply output rating

DC

Device Name

CPU PPV

MCH-M 1R2-P1V 1.2 No No No

CPU, MCH-M, ICH4-M PTV 1.05 No No No

LAN Cont (82540EP) LAN-E2V 2.5 Yes No No

MCH-M, DDR MEM 2R5-B2V 2.5 Yes No No

VGA (XP4) 2R5-P2V 2.5 No No No

MCH-M, DDR MEM 1R25-B1V 1.25 Yes No No

ICH4-M, 82540EP LAN-E3V 3.3 Yes No No

PC Card Cont (Yebisu3S), PC Card,
Serial I/F

CPU Temperature Sensor (ADM1032),
Clock Generator (CK408), ICH4-M,
XP4, TV Encoder, LCD, DVI Encoder,
1394, FWH, Mini PCI, Sound Codec
(AD1981), Super I/O, SD Card,
Modem, FIR, Illumi Sensor

B3V 3.3 Yes No No

P3V 3.3 No No No

Volta

ge (V)

0.748-1.468

Power off

Power supplied Yes/No

Power off

Suspen

d

No No No

Boot

mode

No battery

*1)

USB Port E5V 5 Yes No No

PC Card B5V 5 Yes No No

Dual Point, XP4, FL Inverter, Docking
I/F, KB LED, Other LED’s, HDD, Mini
PCI, Bluetooth, Cooling, Slim Select
Bay *2)

AD1981, Sound Amplifer SND-P5V 5 No No No

Pull-ups 15-EBV 10-15 Yes No No

CPU, MCH-M, ICH4-M 1R8-P1V 1.8 No No No

ICH4-M, 82540EP

MCH-M, ICH4-M 1R5-P1V 1.5 No No No

XP4 PGV 1.2-1.5 No No No

PSC MCV 5 Yes Yes No

PS LED’s, Battery E2PROM M5V 5 Yes Yes No

Pull-ups S5V 5 Yes Yes No

ICH4-M, EC/KBC S3V 3.3 Yes Yes No

ICH4-M 1R5-S1V 1.5 Yes Yes No

ICH4-M (RTC) R3V 3.3 Yes Yes Yes

P5V 5 Yes No No

_AN1R5-

E1V

1.5 Yes No No

1-30 TECRA M1 Maintenance Manual (960-436)

1.11 Power Supply 1 Hardware Overview

*1) Both Main battery and Sub Battery are empty, and only RTC Battery is charged.

*2) CD-ROM or DVD-ROM drive Unit is attached.

TECRA M1 Maintenance Manual (960-436) 1-31

1 Hardware Overview 1.12 Batteries

1.12 Batteries

The computer has three types of batteries as follows:

 Main battery pack

 RTC battery

 Secondary battery pack (Optional Slim Select Bay Module)

The battery specifications are listed in Table 1-10.

Table 1-10 Battery specifications

Battery name Material Output voltage Capacity

Main battery

RTC battery Lithium-Ion 2.4 V 30 mAh

Secondary battery

pack

9 cell 6,600 mAh

6 cell

Lithium-Ion 10.8 V

4,400 mAh

Lithium-Ion 10.8 V 3,000/3,600 mAh

1.12.1 Main Battery

The removable main battery pack is the computer’s main power source when the AC adaptor
is not attached. The main battery maintain the state of the computer when the computer
enters in resume mode.

1-32 TECRA M1 Maintenance Manual (960-436)

1.12 Batteries 1 Hardware Overview

1.12.2 Battery Charging Control

Battery charging is controlled by a power supply microprocessor. The microprocessor
controls whether the charge is on or off and detects a full charge when the AC adaptor and
battery are attached to the computer. The system charges the battery using quick charge.

Quick Battery Charge

When the AC adaptor is attached, there are two types of quick charge: quick charge 1 when
the system is powered off and quick charge 2 when the system is powered on.

Table 1-11 Time required for quick charges

Status Charging time

Quick charge 1

(Power off)

Quick charge 2

(Power on)

9 cell About 2.8 hours

6 cell About 2.5 hours

About 7 hours (When Windows is idling.)

9 cell

About 15 hours (When DVD is being played.)

About 5 hours (When Windows is idling.)

6 cell

About 11 hours (When DVD is being played.)

NOTE: The time required for quick charge 2 is affected by the amount of power the system

is consuming. Use of the fluorescent lamp and frequent disk access diverts power and
lengthens the charge time.

If any of the following occurs, the battery quick charge process stops.

1. The battery becomes fully charged.

2. The AC adaptor or battery is removed.

3. The battery or output voltage is abnormal.

 Detection of full charge

A full charge is detected only when the battery is charging at quick charge. A full charge is

detected under any of the following conditions:

1. The current in the battery charging circuit drops under the predetermined limit.

2. The charging time exceeds the fixed limit.

TECRA M1 Maintenance Manual (960-436) 1-33

1 Hardware Overview 1.12 Batteries

1.12.3 RTC battery

The RTC battery provides power to keep the current date, time and other setup information
in memory while the computer is turned off. Table 1-12 lists the charging time and data
preservation period of the RTC battery.

Table 1-12 RTC battery charging/data preservation time

Status Time

Charging Time (power on) 15 hours

Data preservation period (full charge) 30 days

1-34 TECRA M1 Maintenance Manual (960-436)

Chapter 2

Troubleshooting Procedures

2 Troubleshooting Procedures

2-ii TECRA M1 Maintenance Manual (960-436)

2 Troubleshooting Procedures

Chapter 2 Contents

2.1 Troubleshooting......................................................................................................... 2-1

2.2 Troubleshooting Flowchart ....................................................................................... 2-2

2.3 Power Supply Troubleshooting ................................................................................. 2-6

Procedure 1 Icons in the LCD Check.............................................................. 2-6

Procedure 2 Error Code Check ....................................................................... 2-7

Procedure 3 Connection Check ..................................................................... 2-13

Procedure 4 Charge Check ............................................................................ 2-14

Procedure 5 Replacement Check................................................................... 2-15

2.4 System Board Troubleshooting ............................................................................... 2-16

Procedure 1 Message Check ......................................................................... 2-17

Procedure 2 Printer Port LED Check on Boot Mode .................................... 2-19

Procedure 3 Diagnostic Test Program Execution Check .............................. 2-28

Procedure 4 Replacement Check................................................................... 2-29

2.5 FDD Troubleshooting.............................................................................................. 2-30

Procedure 1 FDD Head Cleaning Check....................................................... 2-30

Procedure 2 Diagnostic Test Program Execution Check .............................. 2-31

Procedure 3 Connector Check and Replacement Check ............................... 2-32

2.6 HDD Troubleshooting ............................................................................................. 2-33

Procedure 1 Message Check ......................................................................... 2-33

Procedure 2 Partition Check.......................................................................... 2-34

Procedure 3 Format Check ............................................................................ 2-35

Procedure 4 Diagnostic Test Program Execution Check .............................. 2-36

Procedure 5 Connector Check and Replacement Check ............................... 2-37

2.7 Keyboard and Touch pad Troubleshooting ............................................................. 2-38

Procedure 1 Diagnostic Test Program Execution Check .............................. 2-38

Procedure 2 Connector and Replacement Check .......................................... 2-39

2.8 Display Troubleshooting ......................................................................................... 2-41

Procedure 1 Diagnostic Test Program Execution Check .............................. 2-41

Procedure 2 Connector and Cable Check...................................................... 2-41

Procedure 3 Replacement Check................................................................... 2-42

TECRA M1 Maintenance Manual (960-436) 2-iii

2 Troubleshooting Procedures

2.9 CD-ROM Drive Troubleshooting............................................................................ 2-43

Procedure 1 Diagnostic Test Program Execution Check .............................. 2-43

Procedure 2 Connector Check and Replacement Check ............................... 2-44

2.10 DVD-ROM, CD-RW/DVD-ROM and DVD Multi Drive Troubleshooting........... 2-45

Procedure 1 Diagnostic Test Program Execution Check .............................. 2-45

Procedure 2 Connector Check and Replacement Check ............................... 2-46

2.11 Modem Troubleshooting ......................................................................................... 2-47

Procedure 1 Diagnostic Test Program Execution Check .............................. 2-47

Procedure 2 Connector Check and Replacement Check ............................... 2-48

2.12 LAN Troubleshooting ............................................................................................. 2-49

Procedure 1 Connector Check and Replacement Check ............................... 2-49

2.13 Bluetooth Troubleshooting...................................................................................... 2-50

Procedure 1 Transmitting-Receiving Check ................................................. 2-50

Procedure 2 Antennas' Connection Check .................................................... 2-51

Procedure 3 Antenna Check.......................................................................... 2-52

Procedure 4 Replacement Check................................................................... 2-53

2.14 Wireless LAN Troubleshooting .............................................................................. 2-54

Procedure 1 Transmitting-Receiving Check ................................................. 2-54

Procedure 2 Antennas' Connection Check .................................................... 2-55

Procedure 3 Antenna Check.......................................................................... 2-56

Procedure 4 Replacement Check................................................................... 2-57

2.15 Sound Troubleshooting ........................................................................................... 2-58

Procedure 1 Diagnostic Test Program Execution Check .............................. 2-58

Procedure 2 Connector Check....................................................................... 2-59

Procedure 3 Replacement Check................................................................... 2-60

2.16 SD Card Slot Troubleshooting ................................................................................ 2-61

Procedure 1 Check on Windows ................................................................... 2-61

Procedure 2 Connector/Replacement Check................................................. 2-61

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2 Troubleshooting Procedures

Figures

Figure 2-1 Troubleshooting flowchart................................................................................. 2-3

Figure 2-2 Printer port LED .............................................................................................. 2-19

Figure 2-3 Antenna Test cable .......................................................................................... 2-52

Figure 2-4 Antenna Test cable .......................................................................................... 2-56

Tables

Table 2-1 Battery Icon.......................................................................................................... 2-6

Table 2-2 DC IN Icon...........................................................................................................2-6

Table 2-3 Printer port LED boot mode status .................................................................... 2-20

Table 2-4 FDD error code and status ................................................................................. 2-31

Table 2-5 Hard disk drive error code and status ................................................................ 2-36

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2 Troubleshooting Procedures

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2.1 Troubleshooting 2 Troubleshooting Procedures

2

2.1 Troubleshooting

Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the computer is
causing the computer to malfunction. The FRUs covered are:

1. System Board 6. CD-ROM Drive 9. LAN

2. Floppy Disk Drive 7. DVD-ROM, 10. Bluetooth

3. Hard Disk Drive CD-RW/DVD-ROM and 11. Wireless LAN

4. Keyboard DVD Multi Drive 12. Sound components

5. Display 8. Modem 13. SD Card Slot

The Diagnostics Disk operations are described in Chapter 3. Detailed Replacement
Procedures are given in Chapter 4, Replacement Procedures.
The following tools are necessary for implementing the troubleshooting procedures:

1. Diagnostics Disk

2. Phillips screwdriver (2 mm)

3. LH-STIX screwdriver

4. Toshiba MS-DOS system disk(s)
(You must install the following onto the disk: SYS.COM, FORMAT.COM,
FDISK.COM and FDISK.EXE)

5. 2DD or 2HD formatted work disk for floppy disk drive testing

6. Cleaning kit for floppy disk drive troubleshooting

7. Serial port wraparound connector

8. PC card wraparound card

9. Multimeter

10. External USB FDD

11. External USB keyboard and Mouse

12. Headphone

13. Microphone

14. USB test module and USB cable

15. TOSHIBA CD-ROM TEST DISK (ZA1217P01/P000204190)

16. DVD-ROM TSD-1 (TOSHIBA EMI DVD Test Media)

17. Music CD

18. CD-RW Media (blank)

19. RJ11 connector checker

20. S/PDIF Speaker

21. Advanced Port Replicator

22. Personal computer that can communicate by wireless LAN for wireless LAN
troubleshooting

23. Personal computer that can communicate by Bluetooth for Bluetooth troubleshooting

24. Antenna test cable

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2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart

2.2 Troubleshooting Flowchart

Use the flowchart in figure 2-1 as a guide for determining which troubleshooting procedures
to execute. Before going through the flowchart steps, verify the following:

 Ask the user if a password is registered and, if it is, ask him or her to enter the

password. If the user has forgotten the system password, perform the following
procedure at the appropriate step in the flowchart in figure 2-1:

Connect the printer port in the Port Replicator, hold down the “P” key and turn the
POWER switch on. The computer will override the password function by erasing the
current password.

 Verify with the customer that Microsoft Windows is installed on the hard disk. Non-

Windows operating systems can cause the computer to malfunction.

 Make sure all optional equipment is removed from the computer.

 Make sure the External USB floppy disk drive is empty.

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2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures

Figure 2-1 Troubleshooting flowchart (1/2)

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2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart

Keyboard/Touch pad

Figure 2-1 Troubleshooting flowchart (2/2)

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2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures

If the diagnostics program cannot detect an error, the problem may be intermittent. The
Running Test program should be executed several times to isolate the problem. Check the
Log Utilities function to confirm which diagnostic test detected an error, then perform the
appropriate troubleshooting procedures as follows:

1. If an error is detected on the system test, memory test, real timer test, perform the
System Board Troubleshooting Procedures in Section 2.4.

2. If an error is detected on the floppy disk test, perform the FDD Troubleshooting
Procedures in Section 2.5.

3. If an error is detected on the hard disk test, perform the HDD Troubleshooting
Procedures in Section 2.6.

4. If an error is detected on the keyboard test, perform the Keyboard and Touch pad
Troubleshooting Procedures in Section 2.7.

5. If an error is detected on the display test, perform the Display Troubleshooting
Procedures in Section 2.8.

6. If an error is detected on the CD-ROM test, perform the CD-ROM Drive
Troubleshooting Procedures in Section 2.9.

7. If an error is detected on the DVD-ROM, CD-RW/DVD-ROM or DVD Multi Drive
test, perform the DVD-ROM, CD-RW/DVD-ROM and DVD Multi Drive
Troubleshooting Procedures in Section 2.10.

8. If an error is detected on the modem test, perform the Modem Troubleshooting
Procedures in Section 2.11.

9. If an error is detected on the Bluetooth test, perform the Bluetooth Troubleshooting
Procedures in Section 2.13.

10. If an error is detected on the Wireless LAN test, perform the Wireless LAN
Troubleshooting Procedures in Section 2.14.

11. If an error is detected on the sound test, perform the Sound Troubleshooting
Procedures in Section 2.15.

12. If an error is detected on the SD card slot test, perform the SD Card Slot
Troubleshooting in Section 2.16.

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

2.3 Power Supply Troubleshooting

The power supply controls many functions and components. To determine if the power
supply is functioning properly, start with Procedure 1 and continue with the other Procedures
as instructed. The procedures described in this section are:

Procedure 1: Icons in the Sub LCD Check

Procedure 2: Error Code Check

Procedure 3: Connection Check

Procedure 4: Charge Check

Procedure 5: Replacement Check

Procedure 1 Icons in the LCD Check

The following Icons in the LCD indicate the power supply status:

 Battery icon

 DC IN icon

The power supply controller displays the power supply status through the Battery icon and
the DC IN icon in the LCD as listed in the tables below. To check the power supply status,
install a battery pack and connect an AC adaptor.

Table 2-1 Battery Icon

Battery Icon Power supply status

Lights Outline of the Battery

Flashes / Lights

Doesn’t light Main Battery is NOT installed

Main Battery is installed

Charge / Full charge

Table 2-2 DC IN Icon

DC IN icon Power supply status

Lights DC power is being supplied from the AC adaptor.

Doesn’t light Any condition other than those above.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

Procedure 2 Error Code Check

If the power supply microprocessor detects a malfunction, it indicates the error code as
shown below.

The error code begins with the least significant digit.

Error code

Error code Where Error occurs

1*h Adaptor

(AC Adaptor, DS)

2*h The 1st battery The 1st Battery is not connected.

3*h The 2nd Battery The 2nd Battery is not connected.

4*h S3V output Operating Power ON

5*h 1R5-C1V output Error code begins with : 0x40

6*h 1R8-C1V output Error code ends with : 0xDF

7*h PPV output

8*h PGV output

9*h E5V output

AC Adaptor is not connected.

Error code begins with : 0x10

Error code ends with : 0x1F

Error code begins with : 0x20

Error code ends with : 0x2F

Error code begins with : 0x30

Error code ends with : 0x3F

A*h E3V output

B*h 1R2-P1V output

C*h PTV output

D*h 1R25-P1V output

E*h 2R5-E2V output

F*h

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

Check 1 Compare the patterns in the hexadecimal error code to the tables below.

 DC IN

Error code Meaning

10h AC Adaptor output voltage is over 16.5V.

11h Common Dock voltage is over 16.5V.

12h Current from the DC power supply is over 6.05A.

13h Current from the DC power supply is over 0.5A when there is no load.

14h Current sensing IC is not normal.

 1st Battery

Error code Meaning

20h Main battery charge current is more than 6.05 A.

21h Main battery charge current is over 6.05A.

 2nd Battery

22h Main battery discharge current over 0.5A.

23h Main battery charge current is over 4.3A.

24h Current sensing IC is not normal.

25h Main battery charge current is over 0.3A.

Error code Meaning

30h Overvoltage is detected. (Not supported)

31h Main battery charge current is over 6.05A.

32h Main battery discharge current is over 0.5A.

33h Main battery charge current is over 3.1A.

34h Current sensing IC is not normal.

35h Secondary battery charge current is over 0.3A.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

 S3V output

Error code Meaning

40h S3V voltage is 3.14V or less when the computer is powered on/off.

45h S3V voltage is 3.14V or less when the computer is booting up.

(CV support)

 1R5-C1V output

Error code Meaning

50h 1R5-C1V voltage is over 1. 80V.

51h 1R5-C1V voltage is 1.275V or less when the computer is powered on.

52h 1R5-C1V voltage is 1.275V or less when the computer is booting up.

53h 1R5-C1V voltage is 1.275V or less when the computer is suspended.

54h 1R5-C1V voltage is abnormal when the computer shuts down.

(CV support)

55h 1R5-C1V voltage is 1.275V or less when the computer is booting up.

(CV support)

 1R8-C1V output

Error code Meaning

60h 1R8-C1V voltage is over 2.16V when the computer is powered on/off.

61h 1R8-C1V voltage is 1.53V or less when the computer is powered on.

62h 1R8-C1V voltage is 1.53V or less when the computer is booting up.

63h 1R8-C1V voltage is 1.53V or less when the computer is suspended.

64h 1R8-C1V voltage is abnormal when the computer shuts down.

65h 1R8-C1V voltage is 1.53V or less when the computer is booting up.

 PPV output

Error code Meaning

70h PPV voltage is over 1.80V when the computer is powered on/off.

71h PPV voltage is 0.56V or less when the computer is powered on.

72h PPV voltage is 0.56V or less when the computer is booting up.

(CV support)

(CV support)

73h PPV voltage is 0.56V or more when the computer is powered off.

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

 PGV output

Error code Meaning

80h PGV voltage is over 1.92V when the computer is powered on/off.

81h PGV voltage is 0.68V or less when the computer is powered on.

82h PGV voltage is 0.68V or less when the computer is booting up.

83h PGV voltage is 0.68V or more when the computer is powered off.

84h PGV voltage is 0.68V or less when the computer is suspended.

 E5V output

Error code Meaning

90h E5V voltage is over 6.00V when the computer is powered on/off.

91h E5V voltage is 4.50V or less when the computer is powered on.

92h E5V voltage is 4.50V or less when the computer is booting up.

 E3V output

 1R2-PIV output

93h E5V voltage is 4.50V or more when the computer is powered off.

94h E5V voltage is 4.50V or less when the computer is suspended.

Error code Meaning

A0h E3V voltage is more than 3.96V when the computer is powered on/off.

A1h E3V voltage is 2.81V or less when the computer is powered on.

A2h E3V voltage is 2.81V or less when the computer is booting up.

A3h E3V voltage is 2.81V or more when the computer is powered off.

A4h E3V voltage is 2.81V or less when the computer is suspended.

Error code Meaning

B0h 1R2-PIV voltage is over 1.44V.

B1h 1R2-PIV voltage is 1.02V or less when the computer is powered on.

B2h 1R2-PIV voltage is 1.02V or less when the computer is booting up.

B3h 1R2-PIV voltage is 1.02V or more when the computer is powered off.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

 PTV output

Error code Meaning

C0h PTV voltage is over 1.26V when the computer is powered on/off.

C1h PTV voltage is 0.89V or less when the computer is powered on.

C2h PTV voltage is 0.89V or less when the computer is booting up.

C3h PTV voltage is 0.89V or more when the computer is powered off.

C4h PTV voltage is 0.89V or less when the computer is suspended.

 1R25-P1V output

Error code Meaning

D0h 1R25-P1V voltage is over 1.50V when the computer is powered on/off.

D1h 1R25-P1V voltage is 1.063V or less when the computer is powered

on.

D2h 1R25-P1V voltage is 1.063V or less when the computer is booting up.

D3h 1R25-P1V voltage is 1.063V or more when the computer is powered

off.

D4h 1R25-P1V voltage is 1.063V or less when the computer is suspended.

 2R5-E2V output

Error code Meaning

E0h 2R5-E2V voltage is over 3.00V when the computer is powered on/off.

E1h 2R5-E2V voltage is 2.125V or less when the computer is powered on.

E2h 2R5-E2V voltage is 2.125V or less when the computer is booting up.

E3h 2R5-E2V voltage is 2.125V or more when the computer is powered off.

E4h 2R5-E2V voltage is 2.125V or less when the computer is suspended.

Check 2 In the case of error code 10h or 12h:

 Make sure the AC adaptor cord and AC power cord are firmly plugged into

the DC IN 15 V socket and wall outlet. If the cables are connected correctly,
go to the following step:

 Connect a new AC adaptor and/or AC power cord, if necessary. If the error

still exists, go to Procedure 5.

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

Check 3 In the case of error code 2Xh:

 Make sure the battery pack is correctly installed in the computer. If the

battery pack is correctly installed, go to the following step:

 Replace the battery pack with a new one. If the error still exists, go to

Procedure 5.

Check 4 For any other error, go to Procedure 5.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

Procedure 3 Connection Check

The power supply wiring diagram is shown below:

Any of the connectors may be disconnected. Perform Check 1.

Check 1 Disconnect the AC power cord from the wall outlet. Check the power cable for

breaks. If the power cord is damaged, connect a new AC power cord. If there is
no damage, go to Check 2.

Check 2 Make sure the AC adaptor cord and AC power cord are firmly plugged into the

PJ8800 DC IN 15 V socket and AC adaptor inlet/wall outlet, respectively. If these
cables are connected correctly, go to Check 3.

Check 3 Make sure the DC IN input port where an AC adaptor’s DC output plug is

connected is firmly secured to the system board.

• If the DC IN input port is loose, go to Procedure 5.

• If it is not loose, go to Check 4.

Check 4 Use a multimeter to make sure the AC adaptor output voltage is close to 15 V. If

the output is several percent lower than 15 V, go to Check 5. If the output is close
to 15 V, go to Check 6.

Check 5 Connect a new AC adaptor or AC power cord.

• If the DC IN icon does not light, go to Procedure 5.

• If the battery icon does not light, go to Check 6.

Check 6 Make sure the battery pack is installed in the computer correctly. If the battery is

properly installed and the battery icon still does not light, go to Procedure 4.

TECRA M1 Maintenance Manual (960-436) 2-13

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

Procedure 4 Charge Check

The power supply may not charge the battery pack. Perform the following procedures:

1. Reinstall the battery pack.

2. Attach the AC adaptor and turn on the power. If you cannot turn on the power, go to
Procedure 5.

3. Run the Diagnostic test, go to System test and execute subtest 06 (Quick charge)
described in Chapter 3.

4. When charge is complete, the diagnostics test displays the result code. Check the
result code against the table below and perform any necessary check.

Result code Contents Check items

0 The battery is charging normally. Normal

1 The battery is fully charged. Normal

2 The AC adaptor is not attached. Check 1

3 The AC adaptor’s output voltage is not normal. Check 1

4 The battery is not installed. Check 2

5 The battery’s output voltage is not normal. Check 3

6 The battery’s temperature is not normal. Check 4

7 A bad battery is installed. Check 2

8 Any other problems. Check 5

Check 1 Make sure the AC adaptor and AC power cord are firmly plugged into the DC IN

socket and the wall outlet. If these cables are connected correctly, replace the AC
adaptor (and/or AC power cord, if necessary).

Check 2 Make sure the battery is properly installed. If the battery is properly installed, go

to Check 3.

Check 3 The battery pack may be completely discharged. Wait a few minutes to charge the

battery pack. If the battery pack is still not charged, go to Check 4.

Check 4 The battery’s temperature is too hot or cold. Return the temperature to a normal

operating condition. If the battery pack still is not charged, go to Check 5.

Check 5 Replace the battery pack with a new one. If the battery pack still is not charged,

go to Procedure 5.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

Procedure 5 Replacement Check

The system board processor module may be disconnected or damaged. Disassemble the
computer following the steps described in Chapter 4, Replacement Procedures. Check the
connection between the AC adaptor and system board and connection. After checking the
connections, perform the following Check 1:

Check 1 Replace the AC adaptor with a new one. If the AC adaptor is still not functioning

properly, perform Check 2.

Check 2 Use a multimeter to make sure that the F800, F810 and F820 fuse are not blown.

If fuses are not blown, go to Check 3.

Check 3 Replace the system board with a new one following the steps described in Chapter

4, Replacement Procedures.

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2 Troubleshooting Procedures 2.5 FDD TroubleshootingSystem Board Troubleshooting

2.4 System Board Troubleshooting

This section describes how to determine if the system board and CPU are defective or not
functioning properly. Start with Procedure 1 and continue with the other procedures as
instructed.

The procedures described in this section are:

Procedure 1: Message Check

Procedure 2: Printer Port LED Check on Resume Mode

Procedure 3: Diagnostic Test Program Execution Check

Procedure 4: Replacement Check

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Procedure 1 Message Check

When the power is turned on, the system performs the Initial Reliability Test (IRT) installed
in the BIOS ROM. The IRT tests each IC on the system board and initializes it.

 If an error message is shown on the display, perform Check 1.

 If there is no error message, go to Procedure 2.

 If Toshiba MS-DOS or Windows Me is properly loaded, go to Procedure 3.

Check 1 If one of the following error messages appears on the screen, press F1 as the

message instructs. These errors occur when the system configuration preserved in
the RTC memory (CMOS type memory) is not the same as the actual
configuration or when the data is lost.

If you press F1 as the message instructs, returns all system settings to their default

values. Then the system reboots.

If error message (b) appears often when the power is turned on, replace the RTC

battery. If any other error message displays, perform Check 2.

(a) *** Bad HDD type ***

Check system. Then press [F1] key ......

(b) *** Bad RTC battery ***

Check system. Then press [F1] key ......

(c) *** Bad configuration ***

Check system. Then press [F1] key ......

(d) *** Bad memory size ***

Check system. Then press [F1] key ......

(e) *** Bad time function ***

Check system. Then press [F1] key ......

(f) *** Bad check sum (CMOS) ***

Check system. Then press [F1] key ......

(g) *** Bad check sum (ROM) ***

Check system. Then press [F1] key ......

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2 Troubleshooting Procedures 2.5 FDD TroubleshootingSystem Board Troubleshooting

Check 2 The IRT checks the system board. When the IRT detects an error, the system

stops or an error message appears.

If one of the following error messages (1) through (17), (24) or (25) appears, go to
Procedure 5.

If the error message (18) appears, go to the Keyboard Troubleshooting Procedures
in Section 2.7.

If the error message (19) or (20) appears, go to the HDD Troubleshooting
Procedures in Section 2.6.

If the error message (21) appears, go to the CD-R/RW Drive Troubleshooting
Procedures in Section 2.9 or the COMBO Drive Troubleshooting Procedures in
Section 2.10

If the error message (22) or (23) appears, go to the FDD Troubleshooting
Procedures in Section 2.5.

(1) PIT ERROR
(2) MEMORY REFRESH ERROR
(3) TIMER CH.2 OUT ERROR
(4) CMOS CHECKSUM ERROR
(5) CMOS BAD BATTERY ERROR
(6) FIRST 64KB MEMORY ERROR
(7) FIRST 64KB MEMORY PARITY ERROR
(8) VRAM ERROR
(9) SYSTEM MEMORY ERROR
(10) SYSTEM MEMORY PARITY ERROR
(11) EXTENDED MEMORY ERROR
(12) EXTENDED MEMORY PARITY ERROR
(13) DMA PAGE REGISTER ERROR
(14) DMAC #1 ERROR
(15) DMAC #2 ERROR
(16) PIC #1 ERROR
(17) PIC #2 ERROR
(18) KBC ERROR
(19) HDC ERROR
(20) IDE #0 ERROR
(21) IDE #1 ERROR
(22) NO FDD ERROR
(23) FDC ERROR
(24) TIMER INTERRUPT ERROR
(25) RTC UPDATE ERROR

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Procedure 2 Printer Port LED Check on Boot Mode

The printer port LED displays the IRT (Initial Reliability Test) status and test status by
turning lights on and off as an eight-digit binary value for boot mode. Figure 2-2 shows the
printer port LED.

Figure 2-2 Printer port LED

To use the printer port LED, follow the steps below:

1. Plug the printer port LED into the parallel port of the Advanced Port Replicator 2001.

2. Read the LED status from left to right as you are facing the back of the computer.

3. Convert the status from binary to hexadecimal notation.

4. If the final LED status is FFh (normal status), go to Procedure 4.

5. If the final LED status matches any of the test status values in Table 2-3, perform

Check 1.

NOTE: If an error is detected by the IRT test, the printer port LED displays an error
code after the IRT test ends. For example, when the printer port LED displays B2 and
halts, the IRT test has already completed the KBC initialization. In this instance, the IRT
indicates an error has been detected during the BIOS rewrite.

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2 Troubleshooting Procedures 2.5 FDD TroubleshootingSystem Board Troubleshooting

Table 2-3 Printer port LED boot mode status (1/8)

LED Status Test item Message

FFh Start

B0H Flash ROM check

B1H EC/KBC rewrite check

B2H BIOS rewrite request check Transition to BIOS rewriting when checksum error other

B3H

System BIOS rewrite transition to
IRT

Rewriting BIOS

Register initialization for boot block

Clearance of software reset bit

Permission of A20 line

Initialization for special register and Intel chip set

PIT CH0 initialization (for HOLD_ON)

BIOS rewrite flag initialization

Checksum check

Transition to protected mode

Boot block checksum (HLT when check error occurred.)

Checksum check except boot block

Transition to BIOS rewriting when required

Enabling KB

[tilde] [TAB] key check

than Boot Block is detected, or user requested rewriting.

H/W initialization

Initialization of HW for each model

Initialization of PIT channel 1
(Setting refresh interval to 30ms)

Initialization of PIT, DMAC, PIC

DRAM configuration

Enabling L1 cache

Memory clear

Transition to real mode, copy BIOS
to RAM

Setting of base for Power Management I/O Space

Enabling BIOS writing

Serial interrupt control

Disabling BIOS rewrite protection

Enabling SM Bus I/O space

Enabling SM Bus access

Opening work I/O for SDRAM initialization

Setting FDC prohibition

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-3 Printer port LED boot mode status (2/8)

LED Status Test item Message

B5H

B6H

Storing key scan code

Setting of TASK_1ms_TSC

Display initialization

FAN control

Sound controller initialization (for
beep)

Message display CEC/KBC UPDATE/DAMAGED, BIOS

Key input

Reading
CHGBIOSA.EXE/CHGFIRMA.EXE

Enabling system speaker

Disabling mute

Setting volume to max

UPDATE/DAMAGED

Disabling USB

Sound beep

Waiting for key input

FDC reset

Setting of parameter for 2HD (1.44MB), transmission rate

Reading first sector

Setting of parameter for 2DD (720KB), transmission rate

Search of CHGBIOSA.EXE from route directory

Calculation of directory start head, sector

Reading contents of route directory by one sector

Search of entry for "CHGBIOSA.EXE"/
"CHGFIRMA.EXE", from the sector read

Reading of EXE header of "CHGBIOSA.EXE"/
"CHGFIRMA.EXE" key input when an error occurred

Execute "CHGBIOSA.EXE"/"CHGFIRMA.EXE"

Prohibition of cache Prohibition of cache B3H

Initialization of special register

00H PIT CH1 initialization (Setting refresh interval to 30ms)

01H

02H

Check of DRAM type and size (at Cold Boot)

(HLT when the DRAM type is 0)

SM-RAM stack area test (HLT when the stack area can not be used.)

Cache configuration

Enabling L1 cache

CMOS access test (at Cold Boot) (HLT when an error is detected.)

Battery level check of CMOS

CMOS checksum check

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2 Troubleshooting Procedures 2.5 FDD TroubleshootingSystem Board Troubleshooting

Table 2-3 Printer port LED boot mode status (3/8)

LED Status Test item Message

(02H)

03H

Initialization of CMOS data (1)

Setting of IRT status

Resume branch (at Cold Boot)

Resume error

(Boot status and IRT busy flag, the remaining bit is 0.)

Storing DRAM size in CMOS

Not resume when a CMOS error occurred

Not resume when resume status code is not set

Resume error check

1CH Power Failure error (Resume error 7AH)

SM-RAM checksum check (Resume error 73H)

Check of memory configuration change (Resume error
73H)

RAM area checksum check in system BIOS (Resume
error 79H)

PnP RAM checksum check (Resume error 77H)

Transition to RESUME-MAIN

Reset of CPU clock to low

Prohibition of all SMI

Clearance of resume status

Return to ROM

System BIOS ROM/RAM copy

04H

05H Initialization of a device which

SM RAM initialization

Check of Wake Up factor

Rewriting of SMRAM base and

Storing CPU state map for BIOS

Enabling SMI only by ASMI

needs initialization before
initialization of PCI bus

Designating the area of C0000h-EFFFFh to PCI
(Prohibition of DRAM)

Setting of resume error request

PIT test (at Cold Boot) and initialization

Setting of test pattern for PIT#0 CH0

Check whether the test pattern set can be read.

Initialization of PIT CH0 (Setting of timer interrupt interval
to 55ms)

Initialization of PIT CH2 (Setting of sound generator
frequency to 664Hz)

Test of PIT CH1 (Check whether a refresh signal is
working properly when refresh interval is set to 30ms.
HLT when the time is out.)

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-3 Printer port LED boot mode status (4/8)

LED Status Test item Message

(05H)

06H

(Initialization of a device which
needs initialization before
initialization of PCI bus)

Measuring of CPU clock

Enabling SMI except for auto-off function

Control of battery discharge current (10mA)

Division process of measuring IRT time

Setting for clock generator

Check of parameter block A

CPU initialization

Update of micro code

Check of Geyserville support

Setting of CPU clock to high

Setting of Graphics Aperature Size

Storing memory configuration in
buffer

Reading EC version

Update of flash ROM type

Test of PIT CH2 (Check whether the speaker gate is
working properly.)

Evaluation of destination
(home/overseas) by DMI data

Setting default when a CMOS
default error (Bad Battery, Bad
Checksum (ROM, CMOS))
occurred

Initialization of ACPI table (for
executing an option ROM)

Initialization of a device that needs
initialization before PCI bus
initialization

PIC initialization

PIC test

AC’97 control

Initialization of temperature control information

KBC initialization

VGA display off and reset control

Sound initialization

Acquisition of status

HC initialization, Recognition of USB device connection
and initialization

Control of interval LAN enable/disable

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2 Troubleshooting Procedures 2.5 FDD TroubleshootingSystem Board Troubleshooting

Table 2-3 Printer port LED boot mode status (5/8)

LED Status Test item Message

(06H)

07H PCI Bus initialization

08H CMOS data initialization

09H Initialization of PnP H/W

Check whether self test is necessary or not (at Cold

Password initialization

Boot) (Check of space key and printer wraparound
connector)

PCI Bus initialization (Connection of DS Bus)

Initialization of LAN information

Check of Wakeup factor

Running a task waiting for the end of INIT PCI

CMOS data initialization (2)

PnP initialization

Setting of setup item

Waiting for the end of Multi Box status check

H/W configuration from PnP resource

Running a task waiting for the end of PnP resource

Serial interrupt control (before using interrupt)

Initialization of PnP H/W

Initialization of PC card slot

SIO initialization

FIR initialization

PCI automatic configuration

Creating a work area for auto configuration

Acquisition of PCI IRQ

Configuration

Storing the results of VGA configuration

0AH Initialization of H/W that is

necessary after PCI configuration

0BH First 6KB memory check

0CH Vector initialization

0DH NDP initialization

Running a task waiting the end of
PCI_CONFIGURATION

Initialization of H/W that is necessary after PCI
configuration

Printer port setting

Start of HDD initialization sequence

SD initialization

Creating output code

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-3 Printer port LED boot mode status (6/8)

LED Status Test item Message

0EH System initialization

0FH Display initialization Waiting for the end of VGA chip initialization

10H LOGO display

11H Conventional memory check (Boot)

12H Extension memory check Check of exceptional cases in protected mode (Boot)

Conventional memory initialization
(Reboot)

(LED=14H when an error is
detected in check of exceptional
cases in protected mode)

15H DMA Page Register check (Boot)

16H DMAC check (Boot)

17H DMAX initialization (Boot)

18H Printer check

19H SIO check

Storing CMOS error status in IRT error status buffer

Start of TIMER initialization

Initialization of buffer for power save

Update of system BIOS (model name, EDID of the LCD)

13H

1AH Password check

1BH Extension I/O ROM check

1CH Final setting up prior to boot-up

(Reboot)

Waiting for the end of HDD initialization

Key input check during IRT (Waiting for the end of KBC
initialization)

ATA priority initialization

(Boot)

BM loading

BM initialization

Key input check during IRT (Waiting for the end of KBC
initialization)

Password input

Enabling BM

Storing the value of 40:00h (for SIO save/store)

Font address setting for resume password

Setting of parameter for character repeat on a USB
keyboard

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2 Troubleshooting Procedures 2.5 FDD TroubleshootingSystem Board Troubleshooting

Table 2-3 Printer port LED boot mode status (7/8)

LED Status Test item Message

(1CH) (Final setting up prior to boot-up)

Getting keys pressed during the IRT

Storing shadow RAM size

Update of system resources information prior to boot-up

Rewriting memory map data for INT15h E820h

Waiting for the end of AC-Link initialization

Updating a table for DMI

Copying an ACPI table to the top of an expansion
memory

Waiting for the end of writing PSC version on BIOS

Waiting for the end of clock generator setting (Stop at
LED=1DH when an error occurred)

Waiting for the end of serial port initialization

Canceling NMI Mask

Examining the checksum of TIT

Clearance of IRT running flag for runtime

Updating checksum for runtime

Branching to hibernation

Bluetooth initialization

Check whether a target maintenance card is set

Disabling a PC card not used

HW initialization prior to boot, Waiting for the end of HW
initialization

Notifying the condition of DVI connection to VGA BIOS

Setting battery save mode

Setting of date

Waiting for the end of Bluetooth initialization

Updating DMI Wakeup factor and SM-BIOS structure
table

Closing configuration space for PCI device

Cache control

Updating of parameter block A

Process for CPU

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-3 Printer port LED boot mode status (8/8)

LED Status Test item Message

(1CH) (Final setting up prior to boot-up)

FFH End

Setting the clock speed of CPU to the appointed value by
setup

Waiting for motor off of a disabled HDD

Final decision of USB FDD drive information

After-treatment of setup prior to boot-up

Clearance of power button status

Enabling power button

Taking a measure against USB operation

Failure at high temperature

Check 1 If the following error codes are displayed, go to Procedure 5.

B0h, B1h, B2h, B3h, B4h, B5h, B6h, 00h, 01h, 02h, 03h, 04h, 05h, 06h, 07h,
08h, 09h, 0Ah, 0Bh, 0Ch, 0Dh, 0Eh, 0Fh, 10h, 11h, 12h, 13h, 14h, 15h, 16h,
17h, 18h, 19h, 1Bh, 1Ch, 1Dh, 1Eh

Check 2 If the error code 81h or 82h is displayed, go to Section 2.5 FDD Troubleshooting

and Section 2.6 HDD Troubleshooting.

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2 Troubleshooting Procedures 2.5 FDD TroubleshootingSystem Board Troubleshooting

Procedure 3 Diagnostic Test Program Execution Check

Execute the following tests from the Diagnostic Test Menu. Refer to Chapter 3, Tests and
Diagnostics, for more information on how to perform these tests.

1. System test

2. Memory test

3. Keyboard test

4. Display test

5. Floppy Disk test

6. Hard Disk test

7. Real Timer test

8. NDP test

9. Expansion test

10. Sound/Modem test

11. CD-ROM/DVD-ROM test

12. Bluetooth test

13. Wireless LAN test

If an error is detected during these tests, go to Procedure 3.

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Procedure 4 Replacement Check

The system board connectors may be disconnected. Disassemble the computer following the
steps described in Chapter 4, Replacement Procedures and perform Check 1.

Check 1 Visually check for the following:

a) Cracked or broken connector housing

b) Damaged connector pins

If their connectors are in good condition, but there is still a problem, go to
Check 2.

Check 2 The system board may be damaged. Replace the system board with a new one

following the steps described in Chapter 4, Replacement Procedures.

TECRA M1 Maintenance Manual (960-436) 2-29

2 Troubleshooting Procedures 2.5 FDD TroubleshootingFDD Troubleshooting

2.5 FDD Troubleshooting

This section describes how to determine if the FDD is functioning properly. Perform the
steps below starting with Procedure 1 and continuing with the other procedures as required.

Procedure 1: FDD Head Cleaning Check

Procedure 2: Diagnostic Test Program Execution Check

Procedure 3: Connector Check and Replacement Check

Procedure 1 FDD Head Cleaning Check

FDD head cleaning operation details are given in Chapter 3, Tests and Diagnostics.

Insert the Diagnostics Disk in the computer’s floppy disk drive, turn on the computer and run
the test. Clean the FDD heads using the cleaning kit. If the FDD still does not function
properly after cleaning, go to Procedure 2.

If the test program cannot be executed, go to Procedure 3.

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2.5 FDD Troubleshooting 2 Troubleshooting Procedures

Procedure 2 Diagnostic Test Program Execution Check

Insert the Diagnostics Disk in the FDD, turn on the computer and run the test. Refer to
Chapter 3, Tests and Diagnostics, for more information about the diagnostics test procedures.

Floppy disk drive test error codes and their status names are listed in Table 2-3. Make sure
the floppy disk is formatted correctly and that the write protect tab is disabled. If any other
errors occur while executing the FDD diagnostics test, go to Check 1.

Table 2-4 FDD error code and status

Code Status

01h Bad command

02h Address mark not found

03h Write protected

04h Record not found

06h Media removed on dual attach card

08h DMA overrun error

09h DMA boundary error

10h CRC error

20h FDC error

40h Seek error

60h No FDD

80h Time out error (Not ready)

EEh Write buffer error

FFh Data compare error

Check 1 If the following message appears, disable the write protect tab on the floppy disk.

If any other message appears, perform Check 2.

Write protected

Check 2 Make sure the floppy disk is formatted correctly. If it is, go to Procedure 3.

TECRA M1 Maintenance Manual (960-436) 2-31

2 Troubleshooting Procedures 2.5 FDD Troubleshooting

Procedure 3 Connector Check and Replacement Check

The USB 3.5-inch FDD is connected to the System Board.

Check 1 When using the USB port 0 or 1, make sure the USB FDD cable is firmly

connected to PJ2033 or PJ2034 on the system board. When using the USB port 2,
make sure the USB FDD cable is connected to PJ3301, and the USB cable is
firmly connected to PJ1004 on the system board and PJ3300 on the USB board.

USB Board

PJ3301

PJ2033/
PJ2034

PJ3300

PJ1004

USB FDD cable

If any of the connections are loose, reconnect firmly and repeat Procedure 2.
If any of the connections is damaged, or there is still an error, go to Check 2.

Check 2 The USB FDD or USB FDD cable may be defective or damaged. Replace it with

a new one. If the USB FDD is still not functioning properly, perform Check 3.

Check 3 Replace the System board with a new one following the steps in Chapter 4,

Replacement Procedures.

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2.6 HDD Troubleshooting 2 Troubleshooting Procedures

2

2.6 HDD Troubleshooting

This section describes how to determine if the HDD is functioning properly. Perform the
steps below starting with Procedure 1 and continuing with the other procedures as required.

Procedure 1: Message Check

Procedure 2: Partition Check

Procedure 3: Format Check

Procedure 4: Diagnostic Test Program Execution Check

Procedure 5: Connector Check and Replacement Check

CAUTION: The contents of the hard disk will be erased when you execute the HDD
troubleshooting procedures. Transfer the contents of the hard disk to floppy disks or other
storage media.

Procedure 1 Message Check

When the computer’s HDD does not function properly, some of the following error messages
may appear on the display. Start with Check 1 below and perform the other checks as
instructed.

Check 1 If any of the following messages appear, go to Procedure 5. If the following

messages do not appear, perform Check 2.

HDC ERROR (After 5 seconds this message will disappear.)

or

IDE #0 ERROR (After 5 seconds this message will disappear.)

or

IDE #1 ERROR (After 5 seconds this message will disappear.)

Check 2 If either of the following messages appears, go to Procedure 2. If the following

messages do not appear, perform Check 3.

Insert system disk in drive

Press any key when ready .....

or
Non-System disk or disk error
Replace and press any key

Check 3 Make sure the Hard Disk option is set to not used. If it is set to not used, choose

another setting and restart the computer. If the problem still exists, go to
Procedure 2.

TECRA M1 Maintenance Manual (960-436) 2-33

2 Troubleshooting Procedures 2.6 HDD Troubleshooting

Procedure 2 Partition Check

Insert the Toshiba MS-DOS system disk and restart the computer with U key holding down.
Perform the following checks:

Check 1 Type C: and press Enter. If you cannot change to drive C, go to Check 2. If you

can change to drive C, go to Check 3.

Check 2 Type FDISK and press Enter. Choose Display Partition Information from the

FDISK menu. If drive C is listed, go to Check 3. If drive C is not listed, return to
the FDISK menu and choose the option to create a DOS partition on drive C.
Restart the computer from the Toshiba MS-DOS system disk. If the problem still
exists, go to Procedure 3.

Check 3 If drive C is listed as active in the FDISK menu, go to Check 4. If drive C is not

listed as active, return to the FDISK menu and choose the option to set the active
partition for drive C. Restart the computer and then go to Procedure 3.

Check 4 Remove the FD and restart the computer. If the problem still exists, go to

Procedure 3.

Check 5 Using the SYS command on the Toshiba MS-DOS system disk, install system

files on the HDD.

If the following message appears on the display, the system files have been
transferred to the HDD. Restart the computer. If the problem still exists, go to
Procedure 3.

System transferred

NOTE: If the computer is running Windows 2000, OSR2 or higher and the hard
disk has more than 512 MB capacity, the FDISK program will ask if you need
support for a partition larger than 2GB. Select Y for large partition support;
however, be sure to read the precaution regarding access by other operating

systems.

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2.6 HDD Troubleshooting 2 Troubleshooting Procedures

Procedure 3 Format Check

The computer’s HDD is formatted using the low level format program and the MS-DOS
FORMAT program. To format the HDD, start with Check 1 below and perform the other
steps as required.

Check 1 Format the HDD and transfer system files using FORMAT C:/S/U. If the

following message appears on the display, the HDD is formatted.

Format complete

If an error message appears on the display, refer to the Toshiba MS-DOS Manual
for more information and perform Check 2.

Check 2 Using the Diagnostics Disk, format the HDD with a low level format option.

Refer to Chapter 3, Tests and Diagnostics for more information about the
diagnostic program.

If the following message appears on the display, the HDD low level format is
complete. Partition and format the HDD using the MS-DOS FORMAT command.

Format complete

If you cannot format the HDD using the Tests and Diagnostic program, go to
Procedure 4.

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2 Troubleshooting Procedures 2.6 HDD Troubleshooting

Procedure 4 Diagnostic Test Program Execution Check

The HDD test program is stored in the Diagnostics Disk. Perform all of the HDD tests in the
Hard Disk Drive Test. Refer to Chapter 3, Tests and Diagnostics, for more information about
the HDD test program.

If an error is detected during the HDD test, an error code and status will be displayed.
Replace the HDD with a new one following the instructions in Chapter 4, Replacement
Procedures. The error codes and statuses are listed in Table 2-4. If an error code is not
generated or the problem still exists, go to Procedure 5.

Table 2-5 Hard disk drive error code and status

Code Status

01h Bad command

02h Bad address mark

04h Record not found

05h HDC not reset

07h Drive not initialized

08h HDC overrun (DRQ)

09h DMA boundary error

0Ah Bad sector error

0Bh Bad track error

10h ECC error

11h ECC recover enable

20h HDC error

40h Seek error

80h Time out error

AAh Drive not ready

BBh Undefined error

CCh Write fault

E0h Status error

EEh Access time out error

DAh No HDD

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2.6 HDD Troubleshooting 2 Troubleshooting Procedures

Procedure 5 Connector Check and Replacement Check

The HDD may be disconnected, or the HDD or the system board may be damaged.
Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures and perform the following checks:

Check 1 Make sure the HDD is firmly connected to PJ1509 on the system board.

If any of the connections are loose, reconnect firmly and repeat Procedure 1. If

there is still an error, go to Check 2.

Check 2 The HDD may be damaged. Replace it with a new one following the instructions

in Chapter 4, Replacement Procedures. If the problem still exists, perform Check

3.

Check 3 The System board may be damaged. Replace it with a new one following the

instructions in Chapter 4, Replacement Procedures. If the problem still exists,
perform Check 4.

Check 4 The CPU may be damaged. Replace it with a new one following the instructions

in Chapter 4, Replacement Procedures.

TECRA M1 Maintenance Manual (960-436) 2-37

2 Troubleshooting Procedures 2.7 Keyboard and Touch pad Troubleshooting

2.7 Keyboard and Touch pad Troubleshooting

To determine if the computer’s keyboard or touch pad is functioning properly, perform the
following procedures. Start with Procedure 1 and continue with the other procedures as
instructed.

Procedure 1: Diagnostic Test Program Execution Check

Procedure 2: Connector and Replacement Check

Procedure 1 Diagnostic Test Program Execution Check

Execute the Keyboard Test in the Diagnostic Program. Refer to Chapter 3, Tests and
Diagnostics, for more information on how to perform the test program.

If an error occurs, go to Procedure 2. If an error does not occur, the keyboard is functioning
properly.

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2.7 Keyboard and Touch pad Troubleshooting 2 Troubleshooting Procedures

Procedure 2 Connector and Replacement Check

The keyboard, touch pad or sensor/switch board may be disconnected or damaged.
Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures, and perform the following checks:

1. If the keyboard or AccuPoint malfunctions, start with Check 1.

2. If the touch pad malfunctions, start with Check 3.

3. If the power switch, InTouch button or Presentation button malfunctions, start with

Check 5.

Check 1 Make sure the keyboard cable is securely connected to PJ123 on the system

board.

If the connection is loose, reconnect firmly and repeat Procedure 2. If there is still
an error, go to Check 2.

Check 2 The keyboard or its cable may be damaged. Replace it with a new one following

the instructions in Chapter 4, Replacement Procedures. If the problem still exists,
perform Check 7.

Check 3 Make sure the touch pad cable is firmly connected to PJ2003 on the system board.

Touch pad

Touch pad cable

If the connection is loose, reconnect firmly and repeat Procedure 2. If there is still

an error, go to Check 4.

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2 Troubleshooting Procedures 2.7 Keyboard and Touch pad Troubleshooting

Check 4 The touch pad or the touch pad cable may be damaged. Replace it with a new one

following the instructions in Chapter 4, Replacement Procedures. If the problem
still exists, perform Check 7.

Check 5 Make sure the cable of the Sensor/Switch board is firmly connected to PJ1000 on

the system board, and the sensor/switch board cable is connected to PJ3200 on the
sensor/switch board.

Sensor/Switch

Board

PJ3200

If the connection is loose, reconnect firmly and repeat Procedure 1. If there is still

an error, go to Check 6.

Check 6 The Sensor/Switch board may be damaged. Replace it with a new one following

the instructions in Chapter 4, Replacement Procedures. If there is still an error, go
to Check 7.

Check 7 The system board may be damaged. Replace it with a new one following the

instructions in Chapter 4, Replacement Procedures.

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2.8 Display Troubleshooting 2 Troubleshooting Procedures

2.8 Display Troubleshooting

This section describes how to determine if the computer’s display is functioning properly.
Start with Procedure 1 and continue with the other procedures as instructed.

Procedure 1: Diagnostic Test Program Execution Check

Procedure 2: Connector and Cable Check

Procedure 3: Replacement Check

Procedure 1 Diagnostic Test Program Execution Check

The Display Test program is stored on the computer’s Diagnostics disk. This program checks
the display controller on the system board. Insert the Diagnostics disk in the computer’s
floppy disk drive, turn on the computer and run the test. Refer to Chapter 3, Tests and
Diagnostics for details. If an error is detected, go to Procedure 3.

Procedure 2 Connector and Cable Check

The LCD Module is connected to the system board by an LCD/FL cable. The FL inverter
board is also connected to the system board by an LCD/FL cable. The connectors may be
disconnected from the system board or may be damaged. Disassemble the computer
following the steps described in Chapter 4, Replacement Procedures.

If the connection is loose, reconnect firmly and restart the computer. If there is still an error,
go to Procedure 3.

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2 Troubleshooting Procedures 2.8 Display Troubleshooting

Procedure 3 Replacement Check

The FL, FL inverter board, LCD module, and system board are connected to display circuits.
Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for
instructions on how to disassemble the computer and then perform the following checks:

If the FL does not light, perform Check 1.

If characters or graphics are not displayed clearly, perform Check 1.

If some screen functions do not operate properly, perform Check 3.

If the FL remains lit when the display is closed, perform Check 5.

Check 1 Replace the FL with a new one following the instructions in Chapter 4,

Replacement Procedures and test the display again. If the problem still exists,
perform Check2.

Check 2 Replace the FL with a new one following the instructions in Chapter 4,

Replacement Procedures and test the display again. If the problem still exists,
perform Check 3.

Check 3 Replace the LCD module with a new one following the instructions in Chapter 4,

Replacement Procedures and test the display again. If the problem still exists,
perform Check 4.

Check 4 Replace the display cable (FL cable and LCD cable) with a new one following the

instructions in Chapter 4, Replacement Procedures and test the display again. If
the problem still exists, perform Check 5.

Check 5 The display controller on the system board may be damaged. Replace it with a

new one following the instructions in Chapter 4, Replacement Procedures.

2-42 TECRA M1 Maintenance Manual (960-436)

2.9 CD-ROM Drive Troubleshooting 2 Troubleshooting Procedures

2.9 CD-ROM Drive Troubleshooting

This section describes how to determine if the computer’s internal CD-ROM drive is
functioning properly. Perform the steps below starting with Procedure 1 and continue with
the other procedures as required.

Procedure 1: Diagnostic Test Program Execution Check

Procedure 2: Connector Check and Replacement Check

Procedure 1 Diagnostic Test Program Execution Check

The CD-ROM/DVD-ROM test program is stored in the Diagnostics Disk.

For the CD-ROM test, prepare a test CD-RW.

Then insert the Diagnostics Disk in the computer’s floppy disk drive, turn on the computer
and run the test. Refer to Chapter 3, Tests and Diagnostics, for more information about the
diagnostics test procedures.

If any errors occur while executing the CD-ROM/DVD-ROM test, go to Procedure 2.

TECRA M1 Maintenance Manual (960-436) 2-43

2 Troubleshooting Procedures 2.9 CD-ROM Drive Troubleshooting

Procedure 2 Connector Check and Replacement Check

The CD-ROM drive is connected to the system board. The connectors may be disconnected
from the system board or may be damaged. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures, and perform the following checks:

Check 1 Make sure the CD-ROM drive is firmly connected to PJ1511 on the system board.

If the connection is loose, reconnect firmly and repeat Procedure 1. If there is still
an error, go to Check 2.

Check 2 The CD-ROM drive may be defective or damaged. Replace the drive with a new

one. If there is still an error, go to Check 3.

Check 3 Replace the system board with a new one following the steps in Chapter 4,

Replacement Procedures.

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