Toshiba tecra m2 Service Manual

Toshiba Personal Computer

TECRA M2

Maintenance Manual

TOSHIBA CORPORATION

File Number 960-468

Copyright

© 2004 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 M2 Maintenance Manual

First edition January 2004

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 M2 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 SpeedStep and Penteium are trademarks 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 M2 Maintenance Manual (960-468)

Preface

This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer TECRA M2.

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 M2 Maintenance Manual (960-468) iii

The manual is divided into the following parts:

Chapter 1 Hardware Overview describes the TECRA M2 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
 EC/KBC rewrite procedures
 Reliability

iv TECRA M2 Maintenance Manual (960-468)

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 M2 Maintenance Manual (960-468) v

Table of Contents

Chapter 1 Hardware Overview

1.1 Features ...................................................................................................................... 1-1

1.2 System Unit Block Diagram ...................................................................................... 1-8

1.3 3.5-inch Floppy Disk Drive (USB External) ........................................................... 1-15

1.4 2.5-inch Hard Disk Drive......................................................................................... 1-16

1.5 DVD-ROM Drive .................................................................................................... 1-20

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

1.7 DVD±R/±RW Drive ................................................................................................ 1-24

1.8 DVD Multi Drive..................................................................................................... 1-25

1.9 Keyboard..................................................................................................................1-27

1.10 TFT Color Display...................................................................................................1-28

1.11 Power Supply ........................................................................................................... 1-30

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 .............................................................................................. 2-29

2.6 HDD Troubleshooting ............................................................................................. 2-32

2.7 Keyboard and Touch pad Troubleshooting.............................................................. 2-37

2.8 Display Troubleshooting.......................................................................................... 2-40

2.9 Optical Drive Troubleshooting ................................................................................ 2-42

2.10 Modem Troubleshooting.......................................................................................... 2-44

2.11 LAN Troubleshooting.............................................................................................. 2-46

2.12 Bluetooth Troubleshooting ...................................................................................... 2-47

2.13 Wireless LAN Troubleshooting............................................................................... 2-50

vi TECRA M2 Maintenance Manual (960-468)

2.14 Sound Troubleshooting............................................................................................ 2-53

2.15 SD Card Slot Troubleshooting................................................................................. 2-56

Chapter 3 Tests and Diagnostics

3.1 The Diagnostic Test ................................................................................................... 3-1

3.2 Executing the Diagnostic Test ................................................................................... 3-3

3.3 Subtest Names............................................................................................................ 3-8

3.4 System Test.............................................................................................................. 3-11

3.5 Memory Test............................................................................................................ 3-14

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

3.7 Display Test ............................................................................................................. 3-18

3.8 Floppy Disk Test...................................................................................................... 3-22

3.9 Printer Test............................................................................................................... 3-24

3.10 Async Test ............................................................................................................... 3-26

3.11 Hard Disk Test ......................................................................................................... 3-28

3.12 Real Timer Test........................................................................................................ 3-31

3.13 NDP Test.................................................................................................................. 3-33

3.14 Expansion Test......................................................................................................... 3-34

3.15 CD-ROM/DVD-ROM Test ..................................................................................... 3-35

3.16 Wireless LAN Test (Cisco)...................................................................................... 3-36

3.17 Wireless LAN Test (Atheros) .................................................................................. 3-41

3.18 Wireless LAN Test (Calexico)................................................................................. 3-44

3.19 Sound/Modem/LAN Test......................................................................................... 3-45

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

3.21 Bluetooth Test.......................................................................................................... 3-51

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...................................................................................... 3-70

TECRA M2 Maintenance Manual (960-468) vii

3.28 System Configuration .............................................................................................. 3-75

3.29 SETUP ..................................................................................................................... 3-77

3.30 Repair Initial Config Set.......................................................................................... 3-93

3.31 Thermal Radiation Control Test .............................................................................. 3-94

Chapter 4 Replacement Procedures

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

4.2 Battery pack ............................................................................................................... 4-8

4.3 PC card..................................................................................................................... 4-10

4.4 SD card..................................................................................................................... 4-11

4.5 HDD......................................................................................................................... 4-12

4.6 Expansion memory .................................................................................................. 4-16

4.7 Slim select bay module ............................................................................................ 4-19

4.8 Keyboard.................................................................................................................. 4-22

4.9 Modem Daughter Card (MDC)................................................................................ 4-28

4.10 RTC battery.............................................................................................................. 4-30

4.11 Cover/Touch pad...................................................................................................... 4-32

4.12 Memory module....................................................................................................... 4-38

4.13 Wireless LAN board ................................................................................................ 4-40

4.14 Bluetooth module..................................................................................................... 4-42

4.15 Display assembly ..................................................................................................... 4-44

4.16 Sound board ............................................................................................................. 4-49

4.17 LAN jack.................................................................................................................. 4-52

4.18 RGB harness holder/RGB board/Modem jack ........................................................4-53

4.19 Fan............................................................................................................................ 4-57

4.20 Cooling fin/CPU ...................................................................................................... 4-59

4.21 System board/ DC-IN jack....................................................................................... 4-63

4.22 Speaker..................................................................................................................... 4-64

4.23 Power switch board.................................................................................................. 4-66

4.24 LCD unit/FL inverter ............................................................................................... 4-68

4.25 Microphone/Wireless LAN antenna/Bluetooth antenna.......................................... 4-79

4.26 Hinge........................................................................................................................ 4-82

viii TECRA M2 Maintenance Manual (960-468)

4.27 Fluorescent Lamp..................................................................................................... 4-87

Appendices

Appendix A Handling the LCD Module ........................................................................... A-1

Appendix B Board Layout ................................................................................................ B-1

Appendix C Pin Assignments............................................................................................ C-1

Appendix D Keyboard Scan/Character Codes .................................................................. D-1

Appendix E Key Layout.....................................................................................................E-1

Appendix F Wiring Diagrams............................................................................................F-1

Appendix G BIOS Rewrite Procedures............................................................................. G-1

Appendix H EC/KBC Rewrite Procedures........................................................................ H-1

Appendix I Reliability........................................................................................................I-1

TECRA M2 Maintenance Manual (960-468) ix

x TECRA M2 Maintenance Manual (960-468)

Chapter 1

Hardware Overview

1 Hardware Overview

1-ii TECRA M2 Maintenance Manual (960-468)

1 Hardware Overview

Chapter 1 Contents

1.1 Features.......................................................................................................................1-1

1.2 System Unit Block Diagram.......................................................................................1-8

1.3 3.5-inch Floppy Disk Drive (USB External)............................................................1-15

1.4 2.5-inch Hard Disk Drive .........................................................................................1-16

1.5 DVD-ROM Drive.....................................................................................................1-20

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

1.7 DVD±R/±RW Drive.................................................................................................1-24

1.8 DVD Multi Drive .....................................................................................................1-25

1.9 Keyboard ..................................................................................................................1-27

1.10 TFT Color Display ...................................................................................................1-28

1.10.1 LCD Module .......................................................................................1-28

1.10.2 FL Inverter Board ...............................................................................1-29

1.11 Power Supply............................................................................................................1-30

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 M2 Maintenance Manual (960-468) 1-iii

1 Hardware Overview

Figures

Figure 1-1 Front of the computer .....................................................................................1-6

Figure 1-2 System unit configuration...............................................................................1-7

Figure 1-3 System unit block diagram .............................................................................1-8

Figure 1-4 3.5-inch FDD (USB External) ......................................................................1-15

Figure 1-5 2.5-inch HDD ...............................................................................................1-16

Figure 1-6 DVD-ROM drive ..........................................................................................1-20

Figure 1-7 CD-RW/DVD-ROM drive ...........................................................................1-22

Figure 1-8 DVD±R/±RW Drive .....................................................................................1-24

Figure 1-9 DVD Multi drive ..........................................................................................1-25

Figure 1-10 Keyboard ......................................................................................................1-27

Figure 1-11 LCD module .................................................................................................1-28

Tables

Table 1-1 3.5-inch FDD specifications .........................................................................1-15

Table 1-2 2.5-inch HDD specifications ........................................................................1-16

Table 1-3 DVD-ROM drive specifications ...................................................................1-20

Table 1-4 CD-RW/DVD-ROM drive specifications ....................................................1-22

Table 1-5 DVD±R/±RW drive specifications...............................................................1-24

Table 1-6 DVD multi drive specifications ....................................................................1-25

Table 1-7 LCD module specifications ..........................................................................1-28

Table 1-8 FL inverter board specifications ...................................................................1-29

Table 1-9 Power supply output rating...........................................................................1-31

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 M2 Maintenance Manual (960-468)

1.1 Features 1 Hardware Overview

1 Features

1.1 Features

The Toshiba TECRA M2 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 (BTO)

The TECRA M2 computer is equipped with an Intel Banias Processor. The Intel Banias
Processor incorporates a math co-processor, a 64KB L1 cache memory and a 1MB L2
cache memory.
The processor runs with one of the following speeds:

Intel Banias Processor

Intel Banias Processor 1.4GHz / 1.5GHz / 1.6GHz / 1.7GHz (1.484V) •

These processors operate at 400MHz bus clock.

 Chipset

The TECRA M2 is equipped with Intel Odem, Intel ICH4-M and YEBISU3S.

 Video Controller

The computer has a nVIDIA NV34M VGA controller. The internal VRAM is 32MB
(64MB is also supported.), DDR250MHz.

 Memory (BTO)

Two memory slots are provided to accommodate 2.5V drive PC2100/PC2700 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 (64M×8bit×16, 2.5V, SDRAM)

 HDD (BTO)

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

•

30/40/60/80GB

TECRA M2 Maintenance Manual (960-468) 1-1

1 Hardware Overview 1.1 Features

 USB FDD (BTO)

A 3.5-inch USB FDD accommodates 2HD (1.44MB) or 2DD (720KB) disks.

 Slim Select Bay (BTO)

A DVD-ROM drive, CD-RW/DVD-ROM drive, DVD±R/±RW drive, DVD Multi drive,
2nd HDD or 2nd Battery can be installed in the Slim Select Bay.

 DVD-ROM Drive (BTO)

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 (BTO)

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±R/±RW Drive (BTO)

This full size DVD±RW/±RW drive module lets you record data to rewritable CD/DVDs
as well as run either 12 cm (4.72-inch) or 8 cm (3.15-inch) CD/DVD without using an
adaptor. It is a high-performance drive that reads DVD at maximum 8-speed, writes
DVD-R/-RW at 2-speed, DVD+R/+RW at 2.4-speed and reads CD at maximum 24-speed
(3,600 KB per second).

 DVD Multi Drive (BTO)

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.

 Display (BTO)

The display comes in the following two 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

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

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1.1 Features 1 Hardware Overview

 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.

 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 cursor.

 Batteries

The computer has two or three batteries: a rechargeable Lithium-Ion main battery pack
and RTC battery (that backs up the Real Time Clock and CMOS memory).

Second battery can be mounted in the slim select bay as an option.

 Universal Serial Bus (USB2.0)

Two 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 (BTO)

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)

 External monitor (RGB) 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.

 PC card slot

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

TECRA M2 Maintenance Manual (960-468) 1-3

1 Hardware Overview 1.1 Features

 SD Card

The 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, which use SD Card flash-memory.

 Docking interface port

The docking interface port enables connection of an optional Advanced Port Replicator
III. It provides additional features as follows:

RJ-45 LAN jack, RJ-11 Modem jack •

•

External monitor port

•

PS/2 mouse and PS/2 keyboard ports

•

Parallel port

•

Serial port

•

DC IN socket

•

Audio line-in, line out jack

•

Four USB ports

•

IEEE 1394 port

•

DVI port

 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 (in ICH4-M) and Analog Deveices AD1981B

•

AMP: Matsushita AN12490 and NSC LM4911

•

Stereo speakers

•

Built-in microphone

•

Volume control knob

•

Stereo headphone jack

•

External microphone jack

•

Supports VoIP

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1.1 Features 1 Hardware Overview

 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 a RJ11 modem jack
for connecting to a telephone line. Both of V.90 and V.92 are 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 (1000 megabits per second, 1000BASE-T). It also supports
Wakeup on LAN (WOL), Magic Packet and LED.

 Bluetooth (BTO)

The computer is equipped with Bluetooth (V1.1) communications standard enable
wireless connection between electronic devices such as computers and printers. It
supports kill SW.

 Mini PCI card slot (BTO)

The computer is equipped with Wireless LAN board compatible with the Standard of
IEEE 802.11b, IEEE 802.11a/b, IEEE 802.11b/g, or IEEE 802.11a/b/g in the Mini PCI
card slot.

 Presentation button

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

 Toshiba Console button

When this button is pressed during power-on, the PC is connected to “Toshiba Console”.
When this button is pressed during power-off, the PC is turned on and connected to
“Toshiba Console”.

TECRA M2 Maintenance Manual (960-468) 1-5

1 Hardware Overview 1.1 Features

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

Figure 1-1 Front of the computer

1-6 TECRA M2 Maintenance Manual (960-468)

1.1 Features 1 Hardware Overview

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

Figure 1-2 System unit configuration

TECRA M2 Maintenance Manual (960-468) 1-7

1 Hardware Overview 1.2 System Unit Block Diagram

1.2 System Unit Block Diagram

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

Figure 1-3 System unit block diagram

1-8 TECRA M2 Maintenance Manual (960-468)

1.2 System Unit Block Diagram 1 Hardware Overview

The system unit is composed of the following major components:

 Processor

• Intel Banias Processor 1.40GHz/1.50GHz/1.60GHz/1.70GHz
– Processor core speed:1.40GHz/1.50GHz/1.60GHz/1.70GHz
– 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

 Memory

Two BTO-compatible memory slots are provided. Expansion up to 2GB (2,048MB) is
available.

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

• 128MB/256MB/512MB/1GB selectable

– 128 MB (16M×16bit×4)
– 256 MB (16M×16bit×8)
– 512 MB (32M×8bit×16)
– 1GB (64M×8bit×16)

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

• 2.5 volt operation

• Supports DDR266 (128MB, 256MB, 512MB and 1GB) and DDR333 (256MB,

512MB and 1GB)

• Supports PC2100 and PC2700

 Intel Odem (North Bridge)

• One Intel RG82855MP is used.

• Features:

– Banias Processor System Bus Support
– DRAM Controller: DDR333/DDR266 Support, 2GB 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

TECRA M2 Maintenance Manual (960-468) 1-9

1 Hardware Overview 1.2 System Unit Block Diagram

 Intel ICH4-M (South Bridge)

• One Intel FW82801DBM 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 Ports (EHCI: Enhanced Host Controller)
– I/O APIC (ACPI 1.0b)
– 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
– 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 Rev. 2.2)
– CardBus/PC Card controller (Yenta2 Ver. 2.2)
– SD memory card controller (SDHC Ver. 1.2)
– SD IO card controller (Ver. 1.0)
– SmartMedia controller (SMHC Ver.01/SMIL1.0) (not used in this computer)
– SIO (UART) controller (MS Debug Port Specification Ver. 1.0)
– Docking station interface (Q-SW control, reset control)
– External device interface

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1.2 System Unit Block Diagram 1 Hardware Overview

 Firmware Hub (FWH)

• One STMicro M50FW080N1 is used.

• This gate array has the following features:

– Firmware hub hardware interface mode
– Two configurable interfaces
– Program/erase controller
– Program and erase suspend
– 8Mbits of flash memory for platform code/data nonvolatile storage
– Address/Address-Multiplexed (A/A Mux) interface/mode
– Case temperature operating range
– Vcc: 3V to 0.36V
– Vpp: 12V for fast programming

• 8Mbits of flash memory are used as shown below:
– 64KB are used for VGA-BIOS.
– 288KB 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.
– 32KB are used for ACPI P code.
– 48KB are used for LOGO.
– 128KB are reserved for LAN BIOS.

− 432KB are reserved.

 VGA Controller

One nVIDIA NV34M chip is used. The video controller incorporates graphics accelerator
and video accelerator.

• Internal VRAM, 32MB/64MB DDR 250MHz

• AGP bus R2.0 ×4

• LCD Interface LVDS 2ch

• TV Encoder: Supports S-video

• DVI Supported by Dock

 Sound Controller

• One AC'97Codec AD1981B chip and AC-Link controller embedded in ICH4-M

• SW sound

TECRA M2 Maintenance Manual (960-468) 1-11

1 Hardware Overview 1.2 System Unit Block Diagram

 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 and internal

keyboard

 PSC (Power Supply Controller)

• One TMP87PM48U chip is used.

• This controller controls the power sources.

 Clock Generator

• One ICS950812CGT is used.

• This device generates the system clock.

1-12 TECRA M2 Maintenance Manual (960-468)

1.2 System Unit Block Diagram 1 Hardware Overview

 Modem Controller

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

• This controller has the following functions:

– One RJ11 port
– Digital line protection support
– Ring wake up support
– Analog audio 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 (33.6K to 2400bps) data communication control
V.44, V.42, V.42bis and MNP class 5 data compression
V.32 turbo, V.32 bis and fallbacks
Fax:
V.34 (33.6K to 2400 bps)
V.17 (14.4K, 12K, 7200 bps)
V.29 (9600, 7200 bps)
V.27 ter (4800, 2400 bps)
V.21 ch2 (300 bps)

 Internal LAN Controller

• One MAC incorporated with ICH4-M and PHY (Kinnereth-R 82562EZ) or

82540EP (KENAI32M) are used for the internal chip, and are connected with
RJ11/RJ45 combo connector.

• This controller has the following functions:
– Gigabit-Ethernet ([MAC+PHY] 82540EP)
– 10/100M-Ethernet ([MAC] ICH4M+[PHY]82562EZ)
– WOL support
– Magic Packet support
– LED support

 Wireless LAN

• One Mini PCI card for wireless LAN with Type IIIA card bus controller. Ardon

(Intel) or AR5121 (Askey) Mini PCI I/F controller is used.

 Super I/O

• One SMSC Kona-Lite chip is used.

• This gate array has the following features:

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

TECRA M2 Maintenance Manual (960-468) 1-13

1 Hardware Overview 1.2 System Unit Block Diagram

 IEEE1394

• One Ti TSB43AB22 is used.

 Sensor

• Thermal Sensor: One ADM1032AR chip is used.

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

1-14 TECRA M2 Maintenance Manual (960-468)

1.3 3.5-inch Floppy Disk Drive 1 Hardware Overview

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 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 1.44MB mode

FDD part 250K bits/second 500K bits/second Data transfer rate

USB Full speed mode (12M bits/second)

Disk rotation speed 300rpm

Track density 5.3 track/mm (135TPI)

TECRA M2 Maintenance Manual (960-468) 1-15

1 Hardware Overview 1.4 2.5-inch Hard Disk Drive

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, 60GB and 80GB 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 (1/4)

Specifications

Items

Outline Width (mm)

dimensions Height (mm)

Depth (mm)

Weight (g)

Storage size (formatted) 30GB 30GB 30GB

Speed (RPM) 4,200 4,200 4,200

Data transfer speed (Mbits/s) 154.3 – 298.0 - 183.2-347.2

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

Track density (Ktpi) 78.9 63 80

Average seek time (ms)
Read
Write

TOSHIBA

HDD 2181B

69.85 69.85 69.85

9.5 9.5 9.5

100 100.2 100

99 max. 95 max. 91

12

ITACHI GST

G8BC0000Z310

12 typ.
14 typ.

HITACHI GST

G8BC00017310

13 typ.

-

Motor startup time (ms) 4 typ 5 5 typ. (Power on)

1-16 TECRA M2 Maintenance Manual (960-468)

1.4 2.5-inch Hard Disk Drive 1 Hardware Overview

Table 1-2 2.5-inch HDD specifications (2/4)

Specifications

Items

Outline Width (mm)

dimensions Height (mm)

Depth (mm)

Weight (g)

Storage size (formatted) 40GB 40GB

Speed (RPM) 4,200 4,200

Data transfer speed (MB/s) 175.0-341.7 -

TOSHIBA

HDD 2190B

69.85 69.85

9.5 9.5

100 100.2

95 max. 95 max.

HITACHI GST

G8BC0000Z410

Interface transfer rate

(MB/s)

Track density (Ktpi) 88.1 63

Average seek time (ms)
Read
Write

Motor startup time (ms) 4typ 5

100 (MAX Ultra DMA mode)

12

12 typ.

14 typ

Specifications

Items

Outline Width (mm)

dimensions Height (mm)

Depth (mm)

Weight (g)

Storage size (formatted) 40GB 40GB 40GB

Speed (RPM) 5,400 5,400 5,400

Data transfer speed (Mbits/s) 154.3-298.0 450 443.2

TOSHIBA

HDD 2193B

69.85 69.85 70

9.5 9.5 9.5

100 100.2 100

95 max. 95 max. 99 max.

HITACHI GST

G8BC00014410

G8BC00019410

FUJITSU

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

Track density (Ktpi) 78.9 96.0 -

Average random seek time
(read) (ms)

Motor startup time (ms) 4 3.5 4

12

TECRA M2 Maintenance Manual (960-468) 1-17

1 Hardware Overview 1.4 2.5-inch Hard Disk Drive

Table 1-2 2.5-inch HDD specifications (3/4)

Specifications

Items

Outline Width (mm)

dimensions Height (mm)

Depth (mm)

Weight (g)

Storage size (formatted) 60GB 60GB 60GB

Speed (RPM) 4,200 4,200 4,200

Data transfer speed (Mbits/s) 154.3-298.0 160-297

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

Track density (Ktpi) 78.9 80 63

TOSHIBA
HDD2183

69.85 69.85 69.85

9.5 9.5 9.5

100 100 100.2

99 max. 95 99 max.

HITACHI GST

G8BC00017610

HITACHI GST

G8BC0000Z610

Average seek time (ms)
Read
Write

Motor startup time (ms) 4 typ. 5 typ.(Power on) 5

12

13 typ.

-

Specifications

Items

Outline Width (mm)

dimensions Height (mm)

Depth (mm)

Weight (g)

Storage size (formatted) 60GB 60GB 60GB

Speed (RPM) 5,400 5,400 5,400

Data transfer speed (Mbits/s) 258-394 450 263.2-407.2

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

Track density (Ktpi) 88.8 96 85.5

TOSHIBA

HDD2194B

69.85±0.25

9.5±0.25

100±0.25

95 max. 102 max. 95 max.

HITACHI GST

G8BC00014610

69.85 70.1 max.

9.5 9.5

100.2 100

HITACHI GST

G8BC00013610

12 typ.
14 typ.

Average seek time (ms)
Read
Write

Motor startup time (ms) 4 typ. 3.5 5 (Power on)

12

12
14

13 typ.

-

1-18 TECRA M2 Maintenance Manual (960-468)

1.4 2.5-inch Hard Disk Drive 1 Hardware Overview

Table 1-2 2.5-inch HDD specifications (4/4)

Specifications

Items

Outline Width (mm)

Dimensions Height (mm)

Depth (mm)

Weight (g)

Storage size (formatted) 60GB 60GB 80GB

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

Data transfer speed (Mb/s) 443.2 max. 507 max. 450 max.

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

Track density (Ktpi) - 88.2 96

FUJITSU

G8BC00019610

70 69.85 69.85

9.5 9.5 9.5

100 100.2 100.2

99 max. 115 max. 102 max.

HITACHI GST

G8BC00015610

HITACHI GST

G8BC00014810

Average seek time (ms)
Read
Write

Motor startup time (ms) 4 typ. 4 3.5

12 typ.

-

10
11

12 typ.
14 typ.

TECRA M2 Maintenance Manual (960-468) 1-19

1 Hardware Overview 1.5 DVD-ROM Drive

1.5 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 1-6. Specifications for the DVD-ROM drive are
described in table 1-3.

Figure 1-6 DVD-ROM drive

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

Item

DVD-ROM mode CD-ROM mode

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

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

130 (Dual Layer)

Rotation speed (rpm) 4,710 (Single Layer)

5,180 (Dual Layer)

Data Buffer Capacity (Kbytes) 256

Supported Format DVD:

CD:

TOSHIBA G8CC00015410

5,670 max.

DVD-ROM, DVD-R (read, 3.95 Gbytes/side and

4.7 Gbytes/side),
DVD-RW (read, 4.7 Gbytes/side),
DVD-RAM (read, 2.6 Gbytes/side and 4.7
Gbytes/side),

CD-ROM Mode-1 data disc
CD-ROM Mode-2 data disc, CD-ROM XA
CD-I Digital Video, Photo-CD Multisession,
CD-Audio disc, Mixed mode CD-ROM disc
(data and audio), CD-EXTRA, CD-TEXT,
CD-R (read), CD-RW (read)

85

1-20 TECRA M2 Maintenance Manual (960-468)

1.5 DVD-ROM Drive 1 Hardware Overview

Table 1-3 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. 5,136 max

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 G8CC0000R410

110 (Typ.)

85 (Typ.)

TECRA M2 Maintenance Manual (960-468) 1-21

1 Hardware Overview 1.6 CD-RW/DVD-ROM Drive

1.6 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 1-7. Specifications are listed in Table 1-4.

Figure 1-7 CD-RW/DVD-ROM drive

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

Item

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

CD-ROM 90 Average access

time (msec)

Data Buffer Capacity 2MB

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

DVD-ROM 110

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

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

Authoring), DVD-RW, DVD-RAM (4.7GB, 2.6GB)
Multi Boader (DVD-R/DVD-RW)

Specifications

TEAC G8CC0001D410

33.3 (Ultra DMA)

1-22 TECRA M2 Maintenance Manual (960-468)

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

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

Item

ATAPI Burst (Mbytes/s) 16.6 (PIO Mode 4, Multi-word 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 typ.

DVD-ROM 180 typ.

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 G8CC0001C410

33.3 (Ultra DMA Mode2)

Item

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

CD-ROM 120 typ. Average access

time (msec)

DVD-ROM 110 typ.

Specifications

HITACHI G8CC0001K410

33.3 (Ultra DMA Mode2)

Data Buffer Capacity 2MB

Supported Formats CD: CD-ROM, CD-ROM XA, CD-I FMV, Video CD, CD-

EXTRA, Photo-CD (Single and multi session), CD­DA, CD-R, CD-RW

DVD: DVD-ROM

TECRA M2 Maintenance Manual (960-468) 1-23

1 Hardware Overview 1.7 DVD±R/±RW Drive

1.7 DVD±R/±RW Drive

This full size DVD±R/±RW drive module lets you record data to rewritable CD/DVDs as
well as run either 12 cm (4.72-inch) or 8 cm (3.15-inch) CD/DVD without using an adaptor.
It is a high-performance drive that reads DVD at maximum 8-speed, writes DVD-R/-RW at
2-speed, DVD+R/+RW at 2.4-speed and reads CD at maximum 24-speed (3,600 KB per
second).

The DVD±R/±RW drive is shown in Figure 1-8. Specifications for the DVD ±R/±RW drive
are described in table 1-5.

Figure 1-8 DVD±R/±RW drive

Table 1-5 DVD±R/±RW drive specifications

Item

ATAPI Burst (MB/sec) 33.3 (Ultra DMA mode 2)

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

Average access time (ms)
DVD-ROM

CD-ROM

Data buffer (MB) 2

Supported format (Read) CD: Photo CD (single and multiple session)

CD-ROM mode1
CD-ROM XA mode2 (form1, form2)
Video CD, CD-DA, CD-Extra
Mixed-CD, CD-Text,
CD-R, CD-RW,

DVD : DVD-ROM (DVD-5, DVD-9,DVD-10,

DVD-18)
DVD-R (Ver.1.0, Ver.2.0)
DVD-RW(Ver.1.0, Ver.1.1), DVD+R,
DVD+RW

Pioneer

G8CC0001L810

150
130

1-24 TECRA M2 Maintenance Manual (960-468)

1.8 DVD Multi (DVD-R/-RW/-RAM) Drive 1 Hardware Overview

1.8 DVD Multi (DVD-R/-RW/-RAM) 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 G8CC00019410

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)

Data Buffer Capacity (MB) 2

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

DVD:DVD-VIDEO, DVD-ROM,

180 150

CD-ROM XA, CD-I Ready,
Photo CD, Video CD,
CD-Extra (CD+), CD-TEXT

DVD-R (3.9GB, 4.7GB),
DVD-RW (Ver.1.1), DVD-RAM
(2.6GB, 4.7GB, 9.4GB)

CD-R/CD-RW

(Write)

-

CD-R, CD-RW

TECRA M2 Maintenance Manual (960-468) 1-25

1 Hardware Overview 1.8 DVD Multi (DVD-R/-RW/-RAM) Drive

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

TEAC G8CC00013410

Item

DVD-ROM mode CD-ROM mode

CD-R/CD-RW

(Write)

ATAPI Burst (Mbytes/s)

Access time (ms) 130 110 -

Data Buffer Capacity (Mbytes) 2

Supported Format CD: CD-DA, CD-ROM Mode1, Mode2,

DVD: DVD-VIDEO, DVD-ROM,

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

CD-R/W, CD-R, CD-ROM XA
Mode2 (Form1,Form2),
Photo CD (Single/multi-session),
CD-TEXT, Enhanced CD

DVD-R (General, Authoring),
DVD-RAM

33.3 (Ultra DMA mode 2)

CD-R, CD-RW

1-26 TECRA M2 Maintenance Manual (960-468)

1.9 Keyboard 1 Hardware Overview

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

TECRA M2 Maintenance Manual (960-468) 1-27

1 Hardware Overview 1.10 TFT Color Display

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
nVIDIA NV34M 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 (G33C0001P110)

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

Dot spacing (mm) 0.279 (H) x 0.279 (V)

Display range (mm) 285.7 (H) x 214.3 (V)

Specifications

Item

14.1-inch XGA TFT (G33C0001M110)

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

Dot spacing (mm) 0.279 (H) x 0.279 (V)

Display range (mm) 285.7 (H) x 214.3 (V)

Specifications

1-28 TECRA M2 Maintenance Manual (960-468)

1.10 TFT Color Display 1 Hardware Overview

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

G71C00011121 G71C00011110

Voltage (V) DC 5 Input

Power (W) 7

Output

Voltage (V) 750

Current (mA) 6.00

Power (mA) 5W/7VA

TECRA M2 Maintenance Manual (960-468) 1-29

1 Hardware Overview 1.11 Power Supply

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.

1-30 TECRA M2 Maintenance Manual (960-468)

1.11 Power Supply 1 Hardware Overview

Table 1-9 Power supply output rating

Name Voltage (V) Use

PPV

MCH1R2-P1V

PTV 1.075 CPU, MCH-M, ICH4-M

2R5-P2V 2.5 GPU

2R5-B2V 2.5 MCH-M, DDR-SDRAM

LAN2R5-E2V 2.5 GBit LAN Controller

1R25-P1V 2.5 MCH-M, DDR-SDRAM, GBit LAN Controller

PGV 1.15 GPU

LAN-E3V 3.3 ICH4-M, KINNERETH

S3V 3.3 ICH4-M, EC/KBC

E3V 3.3 YEBISU3S, PC Card, MDC, RS2322

P3V 3.3

SD-P3V 3.3 SD

E5V 5 USB, PC Card

P5V 5 ICH4-M, KB, LED, FL inverter, HDD, Select Bay, GPU

IF-P5V 5 Dock

0.748-1.484 CPU

1.2

MCH-M

Clock Generator, ADM 1032, ICH4-M, FWH, Mini-PCI,
GPU, LCD, AD1981B, Super I/O, 1394

A4R7-P4V 4.7 AD1981B, Headphone, Int-Mic, Ext-Mic

1R8-P1V 1.8 CPU, MCH-M, ICH4-M

1R5-P1V 1.5 MCH-M, ICH4-M, GPU

1R5-S1V 1.5 ICH4-M

LAN1R5-E1V 1.5 ICH4-M, GBit LAN Controller

M5V 5 LM26CIM5, LED

S5V 5 ICH4-M, Dock

MCV 5 PSC

A4R7-P4V 4.7 AD1981B, MIC

R3V 2.0-3.3 ICH4-M

TECRA M2 Maintenance Manual (960-468) 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 3.0 V 17 mAh

Secondary battery Lithium-Ion 10.8 V 3,600 mAh

12 cell 8,800 mAh

6 cell

Lithium-Ion 10.8 V

4,400 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 M2 Maintenance Manual (960-468)

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
lists the charging time required for quick charges.

Table 1-11 Time required for quick charges

Status Charging time

Quick charge 1

(Power off)

(Power on)

12 cell About 4.5 hours

6 cell About 2.5 hours

12 cell About 10.5 to 21.5 hours Quick charge 2

6 cell About 5.0 to 11.0 hours

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 M2 Maintenance Manual (960-468) 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) 8 hours

Data preservation period (full charge) 30 days

1-34 TECRA M2 Maintenance Manual (960-468)

Chapter 2

Troubleshooting Procedures

2 Troubleshooting Procedures

2-ii TECRA M2 Maintenance Manual (960-468)

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 ...............................2-27

Procedure 4 Replacement Check....................................................................2-28

2.5 FDD Troubleshooting...............................................................................................2-29

Procedure 1 FDD Head Cleaning Check........................................................2-29

Procedure 2 Diagnostic Test Program Execution Check ...............................2-30

Procedure 3 Connector Check and Replacement Check ................................2-31

2.6 HDD Troubleshooting ..............................................................................................2-32

Procedure 1 Message Check ..........................................................................2-32

Procedure 2 Partition Check...........................................................................2-33

Procedure 3 Format Check .............................................................................2-34

Procedure 4 Diagnostic Test Program Execution Check ...............................2-35

Procedure 5 Connector Check and Replacement Check ................................2-36

2.7 Keyboard and Touch pad Troubleshooting ..............................................................2-37

Procedure 1 Diagnostic Test Program Execution Check ...............................2-37

Procedure 2 Connector and Replacement Check ...........................................2-38

2.8 Display Troubleshooting ..........................................................................................2-40

Procedure 1 Diagnostic Test Program Execution Check ...............................2-40

Procedure 2 Connector and Cable Check.......................................................2-40

Procedure 3 Replacement Check....................................................................2-41

TECRA M2 Maintenance Manual (960-468) 2-iii

2 Troubleshooting Procedures

2.9 Optical Drive Troubleshooting.................................................................................2-42

Procedure 1 Diagnostic Test Program Execution Check ...............................2-42

Procedure 2 Connector Check and Replacement Check ................................2-43

2.10 Modem Troubleshooting ..........................................................................................2-44

Procedure 1 Diagnostic Test Program Execution Check ...............................2-44

Procedure 2 Connector Check and Replacement Check ................................2-45

2.11 LAN Troubleshooting ..............................................................................................2-46

Procedure 1 Connector Check and Replacement Check ................................2-46

2.12 Bluetooth Troubleshooting.......................................................................................2-47

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

Procedure 2 Connection Check ......................................................................2-48

Procedure 3 Replacement Check....................................................................2-49

2.13 Wireless LAN Troubleshooting ...............................................................................2-50

Procedure 1 Diagnostic Test Program Execution Check ...............................2-50

Procedure 2 Connection Check ......................................................................2-51

Procedure 3 Replacement Check....................................................................2-52

2.14 Sound Troubleshooting ............................................................................................2-53

Procedure 1 Diagnostic Test Program Execution Check ...............................2-53

Procedure 2 Connector Check........................................................................2-54

Procedure 3 Replacement Check....................................................................2-55

2.15 SD Card Slot Troubleshooting .................................................................................2-56

Procedure 1 Check on Windows ....................................................................2-56

Procedure 2 Connector/Replacement Check..................................................2-56

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2 Troubleshooting Procedures

Figures

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

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

Tables

Table 2-1 Battery icon..........................................................................................................2-6

Table 2-2 DC IN icon...........................................................................................................2-6

Table 2-3 Error code ............................................................................................................2-7

Table 2-4 Result code ........................................................................................................2-14

Table 2-5 Printer port LED boot mode status ....................................................................2-20

Table 2-6 FDD error code and status .................................................................................2-30

Table 2-7 HDD error code and status ................................................................................2-35

TECRA M2 Maintenance Manual (960-468) 2-v

2 Troubleshooting Procedures

2-vi TECRA M2 Maintenance Manual (960-468)

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. Optical Drive 11. Sound components

2. Floppy Disk Drive 7. Modem 12. SD Card Slot

3. Hard Disk Drive 8. LAN

4. Keyboard/Touch pad 9. Bluetooth

5. Display 10. Wireless LAN

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. Philips screwdriver with type 0 bit and 1 bit

3. Toshiba MS-DOS system disk(s)

(You must install the following onto the disk: SYS.COM, FORMAT.COM,
FDISK.COM and FDISK.EXE)

4. 2DD or 2HD formatted work disk for floppy disk drive testing

5. Cleaning kit for floppy disk drive troubleshooting

6. PC card wraparound card

7. Multimeter

8. External USB FDD

9. External RGB monitor

10. Headphone

11. Microphone

12. Speaker

13. USB test module and USB cable

14. Printer wraparound connector

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. Advanced Port Replicator III

21. RS-232C cable

22. LAN wraparound connector

23. Personal computer that can communicate by wireless LAN for wireless LAN

troubleshooting and by Bluetooth for Bluetooth troubleshooting

TECRA M2 Maintenance Manual (960-468) 2-1

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.

 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.

2-2 TECRA M2 Maintenance Manual (960-468)

2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures

Figure 2-1 Troubleshooting flowchart (1/2)

TECRA M2 Maintenance Manual (960-468) 2-3

2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart

Figure 2-1 Troubleshooting flowchart (2/2)

2-4 TECRA M2 Maintenance Manual (960-468)

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/DVD-ROM test, perform the Optical Drive

Troubleshooting Procedures in Section 2.9.

7. If an error is detected on the modem test, perform the Modem Troubleshooting

Procedures in Section 2.10.

8. If an error is detected on the LAN test, perform the LAN Troubleshooting Procedures

in Section 2.11.

9. If an error is detected on the Bluetooth test, perform the Bluetooth Troubleshooting

Procedures in Section 2.12.

10. If an error is detected on the Wireless LAN test, perform the Wireless LAN

Troubleshooting Procedures in Section 2.13.

11. If an error is detected on the sound test, perform the Sound Troubleshooting

Procedures in Section 2.14.

TECRA M2 Maintenance Manual (960-468) 2-5

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 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 orange Battery has been charging and AC adapter is connected.

Lights green Battery is fully charged and AC adapter is connected.

Flashes orange The battery charge is low. The AC adaptor must be connected to

recharge the battery.

Doesn’t light Any condition other than those above.

Table 2-2 DC IN icon

DC IN icon Power supply status

Lights green DC power is being supplied from the AC adapter.

Flashes orange There is a problem with the power supply.

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.

Table 2-3 Error code

Error code Where Error occurs

1*h Adaptor

(AC Adaptor, DS)

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

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

4*h S3V output Operating Power ON

5*h 1R5-C1V output

6*h 1R8-C1V output

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

Error code begins with : 0x40

Error code ends with : 0xEF

A*h E3V output

B*h PTV output

C*h MCH1R2-P1V output

D*h 1R25-P1V output

E*h 2R5-B2V output

F*h

TECRA M2 Maintenance Manual (960-468) 2-7

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 7.00A.

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 Overvoltage is detected. (Not supported)

21h Main battery charge current is over 7.00A.

 2nd Battery

22h Main battery discharge current over 0.5A when there is no load.

23h

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 Secondary battery charge current is over 7.00A.

32h Secondary battery discharge current is over 0.5A when there is no

33h Secondary battery charge current is over 3.1A when AC adapter is not

34h Current sensing IC is not normal.

35h Secondary battery charge current is over 0.3A.

Main battery charge current is over 4.3A when AC adapter is not
connected.

load.

connected.

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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 when the computer is powered on/off.

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. (CV

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.

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 1.62V 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

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

B1h PTV voltage is 0.89V or less when the computer is powered on.

B2h PTV voltage is 0.89V or less when the computer is booting up.

B3h PTV voltage is 0.89V or more when the computer is powered off.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

 MCH1R2-P1V output

Error code Meaning

C0h MCH1R2-P1V voltage is over 1.44V when the computer is powered

on/off.

C1h MCH1R2-P1V voltage is 1.02V or less when the computer is powered

on.

C2h MCH1R2-P1V voltage is 1.02V or less when the computer is booting

up.

C3h MCH1R2-P1V voltage is 1.02V or more when the computer is

powered off.

C4h MCH1R2-P1V voltage is 1.02V 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

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

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

 2R5-B2V output

Error code Meaning

E0h 2R5-B2V voltage is over 3.00V when the computer is powered on/off.

E1h 2R5-B2V voltage is 2.125V or less when the computer is powered on.

E2h 2R5-B2V voltage is 2.125V or less when the computer is booting up.

E3h 2R5-B2V voltage is 2.125V or more when the computer is powered off.

E4h 2R5-B2V voltage is 2.125V or less when the computer is suspended.

on.

off.

TECRA M2 Maintenance Manual (960-468) 2-11

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

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.

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

DC IN jack 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 jack is firmly connected to the system board.

• If the DC IN jack is not firmly connected, go to Procedure 5.

• If it is connected, 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 M2 Maintenance Manual (960-468) 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.

Table 2-4 Result code

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.

2-14 TECRA M2 Maintenance Manual (960-468)

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

4, Replacement Procedures.

TECRA M2 Maintenance Manual (960-468) 2-15

2 Troubleshooting Procedures 2.4 System 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 Boot 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 XP 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 ......

TECRA M2 Maintenance Manual (960-468) 2-17

2 Troubleshooting Procedures 2.4 System 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 4.

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 Optical Drive Troubleshooting
Procedures in Section 2.9.

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.

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 3.

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

Procedure 4.

NOTE: If an error is detected by the IRT test, the printer port LED displays an error

code. For example, when the printer port LED displays B0 and halts, it indicates
an error has been detected during the Flash ROM check.

TECRA M2 Maintenance Manual (960-468) 2-19

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-5 Printer port LED boot mode status (1/7)

LED Status Test item Message

Start

B0h Flash ROM check

B1h EC/KBC rewrite check Transition to BIOS rewriting when required

B2h Start initializing the SC (HLT when Initialization for SC error occurred) B3H

(HLT when processing the SC can not be continued by

Executing initialization of KBC

sequence

Key check at Boot Block

B5h Enabling CPU cache

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 (FEF00000h-FEFF7FFFh)

Transition to protected mode

Boot block checksum (HLT when checksum error
occurred.)

Checksum check except boot block

the HW failure) B4H

transmission of KB enable command

B6h BIOS signature check

BIOS rewrite request check Checksum error except boot block

(When key rewriting is requested, go to BIOS rewrite
process)

B7h

System BIOS rewrite transition to
IRT

Rewriting BIOS

H/W initialization

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

Initialization of PIT, DMAC, PIC

Prohibition of cache

Setting of base for Power Management I/O Space

Permission of BIOS writing

Serial interrupt control

Releasing BIOS rewrite protection

Enabling SM Bus I/O space

Enabling SM Bus access

Opening work I/O for SDRAM initialization

Setting FDC port

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-5 Printer port LED boot mode status (2/7)

LED Status Test item Message

(B7h) Memory type check

Initialization of cache Bus L2

configuration

Permission of cache

Prohibition of L2 cache

Memory clear

B9h Setting of TASK_1ms_TSC

FAN control

Sound controller initialization (for
beep)

Controlling LED instead of display
massage

Reading policy

(When reading error above is occurred, beep sounds

Key input
(Key input is skipped when the
BIOS is damaged)

Reading CHGBIOS.EXE

Enabling system speaker setting

Reading security status

every one second for thirty seconds)

Sound beep

FDC reset

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

Reading first sector

When using 2HD (1.44MB), go to Search of entry for
CHGBIOSA.EXE

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" from the sector
read

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

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

00h CHECK_SYSTEM

Prohibition of cache

Initialization of special register and

Intel chipset

PIT CH1 initialization (Setting refresh interval to 30ms)

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-5 Printer port LED boot mode status (3/7)

LED Status Test item Message

Check of DRAM type and size (Reading DRAM size at Warm Boot) 01h

(DRAM check at Cold Boot))

11h Check of DRAM size (HLT when the DRAM type is 0)

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

02h

03h

Cache configuration (L1 cache
only)

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

Battery level check of CMOS

CMOS checksum check

Initialization of CMOS data (1)

Setting of IRT status (Boot status, the remaining bit is 0.)

Storing DRAM size in CMOS

Resume error check SM-RAM checksum check (Resume error 0F4H)

Check of memory configuration change

RAM area checksum check in system BIOS (Resume

PnP RAM checksum check (Resume error 0F8H)

PIT test and initialization (HLT when refresh signal is not

Initialization of PIT CH0 (Setting of timer interrupt interval

Not resume when a CMOS error occurred Resume branch (at Cold Boot)

Not resume when resume status code is not set

error 0FAH)

changed)

to 55ms)

Initialization of PIT CH2 (Setting of sound generator

frequency to 664Hz)

Transition to RESUME-MAIN

Resume error process

Boot mode process (Not resume) Check hibernation from S4 OS

Check hibernation status code

ROM/RAM copy of system BIOS (HLT when copied

Reset of CPU clock to low

Prohibition of all SMI

Clearance of resume status

Return to ROM

Initialization of memory map

Setting of resume error request

BIOS checksum error)

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-5 Printer port LED boot mode status (4/7)

LED Status Test item Message

04h BIOS signature check (at Cold

Boot)

SMRAM initialization 05h

Check of Wake Up factor

Rewriting of SMRAM base and

storing CPU state map for BIOS
(Enabling SMI only by ASMI)

06h Initialization of a device which

needs initialization before
initialization of PCI bus

Test of PIT CH2 (Check whether the speaker gate is

Measuring of CPU clock

PIT test (at the Cold Boot) and initialization

Setting of test pattern for PIT#0 of 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.)

working properly.)

07h

Enabling SMI except for auto-off function

Check of parameter block A

Control of input voltage over rating

Control of battery discharge current

Control of AC adapter over current rating

Division process of measuring IRT time

Setting for clock generator

CPU initialization

Setting of CPU core frequency

Setting of Gsv high and low frequency

Check of Geyserville support

Setting of CPU clock to high

Storing memory configuration in
buffer

Reading EC version

Update of flash ROM type

Evaluation of destination
(home/overseas) by DMI data

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-5 Printer port LED boot mode status (5/7)

LED Status Test item Message

(07h) Setting default when a CMOS

default (Bad Battery, Bad
Checksum (ROM, CMOS)) check

Initialization of ACPI table (for

executing an option ROM)

Initialization of a device that needs

initialization before PCI bus
initialization

Initialization of temperature control information

Initialization of HC sequence start, Recognition of device

VGA display off and reset control

KBC initialization

Sound initialization

Acquisition of multi box status

Control of interval LAN enable/disable

Check whether self test is necessary or not (at Cold

PIC initialization

PIC test

AC’97 control

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

Password initialization

08h PCI Bus initialization

Initialization of LAN information

Check of Wakeup factor

09h Running a task waiting for the end

of INIT PCI

CMOS data initialization (2)

PnP initialization

Setting of setup item Setting of power on enable

Clearance of Wake Up condition

Controling CPU speed

Controling panel open/close

Initialization of PC card slot

of PnP resource

Serial interrupt control

Initialization of H/W related to PnP

0Ah Running a task waiting for the end

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-5 Printer port LED boot mode status (6/7)

LED Status Test item Message

(0Ah) PCI automatic configuration Creating a work area for auto configuration

Configuration

Storing the results of VGA configuration

0Bh Running a task waiting the end of

PCI_CONFIGURATION

Initialization of H/W that is

necessary after PCI configuration

Enabling power off

Creating output code

0Ch FIRST_64KB_CHECK (Check memory of first 64KB)

0Dh INIT_INT_VECTOR (Vector initialization)

0Eh INIT_DNP (NDP initialization)

0Fh INIT_SYSTEM

SMI Permission of Dock Port Multi box

11h Display initialize pre post (Far Call emulation)

12h INIT_DISPLAY (VGA chip, Waiting for the end of initialization,

Storing CMOS error status in IRT_ERR_STS_BUF

Start of TIMER initialization

Initialization of EC and Reading battery information

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

Setting of DRAM window from memory size

initialization of VGA BIOS)

13h DISP_LOGO (LOGO display)

14h SYS_MEM_CHECK (Conventional memory check) (Boot)

15h EXT_MEM_CHECK (Check of exceptional cases in protected mode) (Boot)

16h EXT_MEM_CHECK (Occurrence of exceptional case)

17h INIT_SYS_MEM (Conventional memory initialization) (Reboot)

18h CHK_DMA_PAGE (Boot)

19h CHECK_DMAC (Boot)

1Ah INIT_DMAC (Boot)

1Bh CHECK_PRT

1Ch CHECK_SIO

1Dh BOOT_PASSWORD (Password check)

(Waiting for the end of INIT_KBC division process)

1Eh EX_IO_ROM_CHECK (Option I/O ROM check)

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-5 Printer port LED boot mode status (7/7)

LED Status Test item Message

1Fh PRE_BOOT_SETUP Storing the value of 40:00h (for SIO save/restore)

Font address setting for resume password

Setting of parameter for character repeat on a USB

keyboard

Getting keys pressed during the IRT

Storing T_SHADO_RAM_SIZE

Reflecting expansion memory size to CMOS

Update of system resources information just before
booting

Updating a table for DMI

Rewriting memory map data for INT15h E820h

Rewriting Wake UP factor of DMI and SM-BIOS structure
table

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 and check
(Stop at LED=20H 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 upgrade of CPU, HDD, etc.

Check whether a target maintenance card is set

Disabling a PC card not used

Setting of Wake UP status data for ACPI

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

SID of SC initialization

Cutting power consumption of built-in LAN

21h IRT_POST_END

FFh

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

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. Printer test

7. ASYNC test

8. Hard Disk test

9. Real Timer test

10. NDP test

11. Expansion test

12. CD-ROM/DVD-ROM test

13. Sound/Modem/LAN test

14. Bluetooth test

15. Wireless LAN test

16. IEEE1394 test

If an error is detected during these tests, go to Procedure 4.

TECRA M2 Maintenance Manual (960-468) 2-27

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

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.

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2.5 FDD Troubleshooting 2 Troubleshooting Procedures

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.

TECRA M2 Maintenance Manual (960-468) 2-29

2 Troubleshooting Procedures 2.5 FDD Troubleshooting

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 2-6. 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 2-6 FDD error code and status

Code Status

01h Bad command error

02h Address mark not found

03h Write protected

04h Record not found

06h Media removed

08h DMA overrun error

09h DMA boundary error

10h CRC error

20h FDC error

40h Seek error

60h Not drive error

80h Time out error

EEh Write buffer 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.

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2.5 FDD Troubleshooting 2 Troubleshooting Procedures

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, make sure the USB FDD cable is firmly connected to

PJ4600 (USB port 0) or PJ4601 (USB port 1) on the SN board and the SN cable is
firmly connected to PJ9501 on the system board and PJ9511 on the SN board.

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 The SN board or SN cable may be defective or damaged. Replace it with a new

one following the steps in Chapter 4, Replacement Procedures. If the USB FDD
is still not functioning properly, perform Check 4.

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

Replacement Procedures.

TECRA M2 Maintenance Manual (960-468) 2-31

2 Troubleshooting Procedures 2.6 HDD Troubleshooting

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 .....

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

or

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.

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2.6 HDD Troubleshooting 2 Troubleshooting Procedures

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 Troubleshooting Procedures 2.6 HDD Troubleshooting

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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2.6 HDD Troubleshooting 2 Troubleshooting Procedures

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 2-7. If an error code is not
generated or the problem still exists, go to Procedure 5.

Table 2-7 HDD error code and status

Code Status

01h Bad command error

02h Address mark not found

04h Record not found

05h HDC not reset

07h Drive not initialized

08h Overrun error (DRQ ON)

09h DMA boundary error

0Ah Bad sector error

0Bh Bad track error

10h ECC error

11h ECC recover enable

12h DMA CRC error

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 error

DAh No HDD

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2 Troubleshooting Procedures 2.6 HDD Troubleshooting

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 PJ1800 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.

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2.7 Keyboard and Touch pad Troubleshooting 2 Troubleshooting Procedures

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 Troubleshooting Procedures 2.7 Keyboard and Touch pad Troubleshooting

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 PJ3200 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 PJ3201 on the system board.

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

an error, go to Check 4.

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.

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2.7 Keyboard and Touch pad Troubleshooting 2 Troubleshooting Procedures

Check 5 Make sure the cable of the sensor/switch board is firmly connected to PJ9600 on

the system board, and the sensor/switch board cable is connected to PJ9610 on the
sensor/switch board.

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.

TECRA M2 Maintenance Manual (960-468) 2-39

2 Troubleshooting Procedures 2.8 Display Troubleshooting

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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2.8 Display Troubleshooting 2 Troubleshooting Procedures

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:

1. If the FL does not light, perform Check 1.

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

3. If some screen functions do not operate properly, perform Check 2.

4. If the FL remains lit when the display is closed, perform Check 4.

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 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 3.

Check 3 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 4.

Check 4 The display controller on the system board may be damaged. Replace the system

board with a new one following the instructions in Chapter 4, Replacement

Procedures.

TECRA M2 Maintenance Manual (960-468) 2-41

2 Troubleshooting Procedures 2.9 Optical drive Troubleshooting

2.9 Optical drive Troubleshooting

This section describes how to determine if the optical drive (DVD-ROM, CD-RW/DVD­ROM, DVD±R/±RW or DVD Multi drive) in the Slim Select Bay 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 test, prepare test Media.

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.

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2.9 Optical drive Troubleshooting 2 Troubleshooting Procedures

Procedure 2 Connector Check and Replacement Check

The optical drive (DVD-ROM, CD-RW/DVD-ROM, DVD±R/±RW or DVD Multi 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 drive to test is firmly connected to PJ1801 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 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.

TECRA M2 Maintenance Manual (960-468) 2-43

2 Troubleshooting Procedures 2.10 Modem Troubleshooting

2.10 Modem Troubleshooting

This section describes how to determine if the computer's modem is functioning properly.
Perform the steps below starting with Procedure 1 and continuing 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

Insert the Sound/Modem/LAN test program in the USB 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 Sound/Modem/LAN test, go to Procedure 2.

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2.10 Modem Troubleshooting 2 Troubleshooting Procedures

Procedure 2 Connector Check and Replacement Check

The Modem is installed as a modem daughter card (MDC). If the modem malfunctions, there
may be a bad connection between the MDC and the system board. Or the MDC, system
board or their connectors might be damaged.

Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures and perform the following checks:

Check 1 Make sure the MDC is firmly connected to PJ3000 on the system board, and the

modem/jack cable is connected to PJ3001 on the system board and the connector
of the MDC.

If a connector is disconnected, connect it firmly and repeat Procedure 1. If the
modem is still not functioning properly, perform Check 2.

Check 2 The MDC may be defective or damaged. Replace it with a new one following the

steps in Chapter 4, Replacement Procedures. If the modem is still not functioning
properly, perform Check 3.

Check 3 The modem jack or modem/jack cable may be defective or damaged. Replace it

with a new one following the steps in Chapter 4, Replacement Procedures. If the
modem is still not functioning properly, perform Check 4.

Check 4 The system board may be defective or damaged. Replace it with a new one

following the steps in Chapter 4, Replacement Procedures.

TECRA M2 Maintenance Manual (960-468) 2-45

2 Troubleshooting Procedures 2.11 LAN Troubleshooting

2.11 LAN Troubleshooting

This section describes how to determine if the computer's LAN is functioning properly.
Perform Procedure 1.

Procedure 1: Connector Check and Replacement Check

Procedure 1 Connector Check and Replacement Check

The RJ45 jack with LAN cable is connected to the system board. If the LAN malfunctions,
the system board might be damaged.

Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures and perform the following check:

Check 1 Make sure the RJ-45 jack is firmly connected to PJ4100 on the system board.

If the connector is disconnected, connect it firmly and repeat Procedure 1. If the
LAN port is still not functioning properly, perform Check 2.

Check 2 The RJ-45 jack may be defective or damaged. Replace the RJ-45 jack with a new

one. If the LAN port is still not functioning properly, perform Check 3.

Check 3 The system board may be defective or damaged. Replace the system board with a

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

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