Toshiba satellite a10, satellite pro a10, tecra a1 Service Manual

1

Toshiba Personal Computer

Satellite A10/TECRA A1/

Satellite Pro A10 (not released in U.S.)

Maintenance Manual

TOSHIBA CORPORATION

File Number 960-445

Copyright

© 2003 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual cannot be
reproduced in any form without the prior written permission of Toshiba. No patent liability is assumed with
respect to the use of the information contained herein.

Toshiba Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual

First edition May 2003

Disclaimer

The information presented in this manual has been reviewed and validated for accuracy. The included set of
instructions and descriptions are accurate for the Satellite A10/TECRA A1/Satellite Pro A10 at the time of this
manual's production. However, succeeding computers and manuals are subject to change without notice.
Therefore, Toshiba assumes no liability for damages incurred directly or indirectly from errors, omissions, or
discrepancies between any succeeding product and this manual.

Trademarks

Intel, Intel Speed Step, Pentium and Celeron 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.

ii Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

Photo CD is a trademark of Eastman Kodak

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) iii

Preface

This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer Satellite A10/TECRA A1/Satellite Pro A10.

NOTE: This Satellite A10/TECRA A1/Satellite Pro A10 is a BTO-support personal
computer. Each model of Satellite A10/TECRA A1/Satellite Pro A10 has a different
configuration. For each model’s configuration, refer to the parts list dedicated to it.

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. Be sure to use the PH

Point size “0” and “1” screwdrivers complying with the ISO/DIS 8764-1:1996. If a
screw is not fully fastened, it could come loose, creating a danger of a short circuit,
which could cause overheating, smoke or fire.

 If you replace the battery pack or RTC battery, be sure to use only the same model

battery or an equivalent battery recommended by Toshiba. Installation of the wrong
battery can cause the battery to explode.

iv Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

The manual is divided into the following parts:

Chapter 1 Hardware Overview describes the Satellite A10/TECRA A1/Satellite

Pro A10 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 assignment
 Display codes
 Key layout
 Wiring diagrams
 BIOS/KBC/EC Update
 Reliability

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) v

Conventions

This manual uses the following formats to describe, identify, and highlight terms and
operating procedures.

Acronyms

On the first appearance and whenever necessary for clarification acronyms are enclosed in
parentheses following their definition. For example:

Read Only Memory (ROM)

Keys

Keys are used in the text to describe many operations. The key top symbol as it appears on
the keyboard is printed in boldface type.

Key operation

Some operations require you to simultaneously use two or more keys. We identify such

operations by the key top symbols separated by a plus (+) sign. For example, Ctrl + Pause
(Break) means you must hold down Ctrl and at the same time press Pause (Break). If

three keys are used, hold down the first two and at the same time press the third.

User input

Text that you are instructed to type in is shown in the boldface type below:

DISKCOPY A: B:

The display

Text generated by the Satellite 1870 that appears on its display is presented in the type face
below:

Format complete
System transferred

vi Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

Table of Contents

Chapter 1 Hardware Overview

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

1.2 System Block Diagram .............................................................................................. 1-5

1.3 3.5-inch Floppy Disk Drive .......................................................................................1-9

1.4 2.5-inch Hard Disk Drive......................................................................................... 1-10

1.5 CD-ROM.................................................................................................................. 1-13

1.6 DVD-ROM Drive .................................................................................................... 1-14

1.7 Combo Drive............................................................................................................ 1-16

1.8 Combo+2 Drive ....................................................................................................... 1-19

1.9 DVD Multi Drive..................................................................................................... 1-20

1.10 Keyboard.................................................................................................................. 1-21

1.11 TFT Color Display................................................................................................... 1-22

1.12 Power Supply ........................................................................................................... 1-25

1.13 Batteries ...................................................................................................................1-27

1.14 AC Adapter .............................................................................................................. 1-30

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 3.5” FDD Troubleshooting ......................................................................................2-39

2.6 2.5” HDD Troubleshooting...................................................................................... 2-42

2.7 Keyboard Troubleshooting ......................................................................................2-47

2.8 Display Troubleshooting.......................................................................................... 2-48

2.9 Touch Pad Troubleshooting..................................................................................... 2-50

2.10 Optical drive Troubleshooting ................................................................................. 2-51

2.11 Modem Troubleshooting.......................................................................................... 2-52

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) vii

2.12 LAN Troubleshooting.............................................................................................. 2-53

2.13 Sound Troubleshooting............................................................................................ 2-54

2.14 Wireless LAN 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............................................................................................................ 3-7

3.4 System Test................................................................................................................3-9

3.5 Memory Test............................................................................................................ 3-12

3.6 Keyboard Test.......................................................................................................... 3-14

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

3.8 Floppy Disk Test...................................................................................................... 3-21

3.9 Printer Test............................................................................................................... 3-23

3.10 ASYNC Test ............................................................................................................ 3-25

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

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 ..................................................................................... 3-36

3.16 LAN Test ................................................................................................................. 3-37

3.17 Sound/LAN/Modem Test......................................................................................... 3-38

3.18 Wireless LAN Test(Agere)...................................................................................... 3-42

3.19 Wireless LAN Test(Atheros) ................................................................................... 3-47

3.20 Error Code and Error Status Names......................................................................... 3-50

3.21 Hard Disk Test Detail Status.................................................................................... 3-53

3.22 FDD Cleaning .......................................................................................................... 3-55

3.23 Log Utilities ............................................................................................................. 3-56

3.24 Running Test............................................................................................................ 3-58

3.25 Floppy Disk Drive Utilities...................................................................................... 3-60

3.26 System Configuration ..............................................................................................3-65

3.27 SETUP ..................................................................................................................... 3-67

viii Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

Chapter 4 Replacement Procedures

4.1 Overview....................................................................................................................4-1

4.2 Battery Pack/PC Card ............................................................................................... 4-8

4.3 Memory Module ...................................................................................................... 4-12

4.4 HDD......................................................................................................................... 4-14

4.5 MDC Modem ........................................................................................................... 4-18

4.6 Mini PCI Card.......................................................................................................... 4-20

4.7 Fan Module/Cooling Fin/CPU................................................................................. 4-22

4.8 Keyboard.................................................................................................................. 4-28

4.9 Optical Drive............................................................................................................ 4-32

4.10 Display Assembly .................................................................................................... 4-35

4.11 Touch Pad ................................................................................................................ 4-39

4.12 BAT CON Holder .................................................................................................... 4-41

4.13 System Board/DC-IN Jack/RTC Battery................................................................. 4-42

4.14 BAT LOCK ASSY/HDD UPPER ASSY................................................................ 4-46

4.15 Touch pad Switch ....................................................................................................4-49

4.16 LCD Unit/FL Inverter.............................................................................................. 4-50

4.17 Wireless LAN Antenna/Display Cover/Display Cable............................................ 4-54

4.18 Fluorescent Lamp..................................................................................................... 4-64

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) ix

Appendices

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

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

Appendix C Pin Assignment .......................................................................................... C-1

Appendix D Display Codes............................................................................................ D-1

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

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

Appendix G BIOS/KBC/EC Update .............................................................................. G-1

Appendix H Reliability................................................................................................... H-1

x Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) xi

Chapter 1

Hardware Overview

1 Hardware Overview

1 Hardware Overview

1-ii Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1 Hardware Overview

Chapter 1 Contents

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

1.2 System Block Diagram .............................................................................................. 1-5

1.3 3.5-inch Floppy Disk Drive ....................................................................................... 1-9

1.4 2.5-inch Hard Disk Drive......................................................................................... 1-10

1.5 CD-ROM.................................................................................................................. 1-13

1.6 DVD-ROM Drive ....................................................................................................1-14

1.7 Combo Drive............................................................................................................ 1-16

1.8 Combo+2 Drive ....................................................................................................... 1-19

1.9 DVD Multi Drive..................................................................................................... 1-20

1.10 Keyboard.................................................................................................................. 1-21

1.11 TFT Color Display................................................................................................... 1-22

1.11.1 LCD Module ....................................................................................... 1-22

1.11.2 FL Inverter Board................................................................................ 1-24

1.12 Power Supply........................................................................................................... 1-25

1.13 Batteries ................................................................................................................... 1-27

1.13.1 Main Battery........................................................................................ 1-27

1.13.2 Battery Charging Control .................................................................... 1-28

1.13.3 RTC Battery ........................................................................................ 1-29

1.14 AC Adapter .............................................................................................................. 1-30

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-iii

1 Hardware Overview

Figures

Figure 1-1 Front of the computer and the system units configuration ............................ 1-4

Figure 1-2 System block diagram.................................................................................... 1-5

Figure 1-3 3.5-inch USB FDD......................................................................................... 1-9

Figure 1-4 2.5-inch HDD............................................................................................... 1-10

Figure 1-5 CD-ROM Drive ........................................................................................... 1-13

Figure 1-6 DVD-ROM Drive ........................................................................................ 1-14

Figure 1-7 Combo Drive................................................................................................ 1-16

Figure 1-8 Combo+2 Drive ........................................................................................... 1-19

Figure 1-9 DVD Multi Drive ......................................................................................... 1-20

Figure 1-10 Keyboard...................................................................................................... 1-21

Figure 1-11 LCD module................................................................................................. 1-23

Tables

Table 1-1 Difference of each model............................................................................... 1-1

Table 1-2 3.5-inch USB FDD specifications.................................................................. 1-9

Table 1-3 2.5-inch HDD dimensions ........................................................................... 1-10

Table 1-4 2.5-inch HDD specification ......................................................................... 1-11

Table 1-5 CD-ROM Drive specifications .................................................................... 1-13

Table 1-6 DVD-ROM Drive dimensions ..................................................................... 1-15

Table 1-7 Combo Drive specifications......................................................................... 1-16

Table 1-8 Combo+2 Drive specifications .................................................................... 1-19

Table 1-9 DVD Multi Drive speciifcations.................................................................. 1-20

Table 1-10 LCD module specifications.......................................................................... 1-22

Table 1-11 FL inverter board specifications .................................................................. 1-23

Table 1-12 Power supply output rating .......................................................................... 1-26

Table 1-13 Battery specifications................................................................................... 1-27

Table 1-14 Time required for charges of main battery .................................................. 1-28

Table 1-15 Data preservation time ................................................................................. 1-28

Table 1-16 Time required for charges of RTC battery................................................... 1-29

Table 1-17 AC adapter specifications ............................................................................ 1-30

1-iv Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.1 Features 1 Hardware Overview

1 Features

1.1 Features

The Satellite A10/TECRA A1/Satellite Pro A10 is a high performance all-in-one PC running
a Pentium 4 or Celeron processor.

There are five models of Satellite A10/TECRA A1/Satellite Pro A10 according to the
combination of CPU and LCD. Table 1-1 lists the difference of each model.

Table 1-1 Difference of each model

Model A Model B Model C Model D Model E Model F

CPU Pentium 4 Pentium 4 Pentium 4 Celeron Celeron Celeron

LCD

15inchTFT

(SXGA+)

The HDD, FDD, Optical devices and Wireless LAN support CTO.

Other features are listed below.

15-inchTFT

(XGA)

14-inchTFT

(XGA)

15-inchTFT

(SXGA+)

15-inchTFT

(XGA)

14-inchTFT

(XGA)

 Microprocessor

Microprocessor used is different from each model.

Mobile Intel

®

Pentium®4-M model

A 1.80/1.90/2.00/2.20GHz Pentium 4 processor with a

1.80/1.90/2.00/2.20/1.20GHz internal clock, 400MHz bus and 1.30/1.20V core
operation

Mobile Intel Celeron model

A 1.80/2.00/2.20GHz Celeron processor with a 1.80/2.00/2.20GHz internal clock,
400MHz bus and 1.30V core operation

 Cache memory

Mobile Intel

®

Pentium®4-M model

12KB primary cache (in CPU) and 512KB secondary cache (in CPU)

Mobile Intel Celeron model

12KB primary cache (in CPU) and 256KB secondary cache (in CPU)

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-1

1 Hardware Overview 1.1 Features

 Memory

Two DDR266 SO-DIMM slots. Memory modules can be installed to provide a
maximum of 1GB. Memory modules are available in 128MB, 256MB and 512MB
sizes.

 VRAM

The computer has VGA imbedded in North Bridge and VRAM in 16-64MB.

 HDD

Single 20GB, 30GB, 40GB, or 60GB internal drive. 2.5 inch x 9.5mm height.

 USB FDD

The three-mode 3.5-inch USB FDD supports 720KB, 1.2MB and 1.44MB formats.

 Display

LCD

Built-in 14.1- or 15.0-inch, XGA (1,024 x 768 dots), or 15-inch, SXGA+ (1,400 x
1,050 dots), 262,144 colors, amorphous silicon TFT color display.

CRT

Supported via an RGB connector.

TV-out

The S-Video terminal supports VIDEO-OUT.

 Keyboard

An easy-to-use 85(US)-/86(UK)-key keyboard (101 Key emulation). Windows key is
supported.
The keyboard also supports touchpad as a pointing device.

 Optical devices

A CD-ROM, DVD-ROM, Combo, Combo+2 or DVD Multi Drive is supported.

1-2 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.1 Features 1 Hardware Overview

 Battery

The RTC battery is mounted inside the computer.
The main battery is a detachable lithium ion battery (3,600mAh: Li-Ion, 6cell or
4,400mAh: Li-Ion, 6cell).

 USB (Universal Serial Bus)

The computer has two USB ports which support USB2.0.

 PC card slot

The PC card slot accepts one Type II (5mm thick) card. The slot is equipped with an
ejector and supports ToPIC-100 (3.3V/CardBus).

 Sound system

The computer has an external monaural microphone connector, stereo headphone
connector and internal stereo speakers.

 Wireless LAN (Mini PCI slot)

The wireless LAN (802.11b or 802.11a/b Combo) is equipped on the mini PCI slot.

 LAN/MODEM

Connectors for LAN and Modem are separately mounted.

 Printer/PS2

Ports for Printer and PS2 are separately mounted.

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-3

1 Hardware Overview 1.1 Features

Figure 1-1 shows the front of the computer and the system units configuration.

Memory 0

Memory 1

Optical drive

HDD

PC Card

MDC

Debug Port

Keyboard

To u c h P a d

Parallel

Network

PJ1420

PJ1440

PJ1800

PJ1801

PJ2001

PJ3000

PJ3203

PJ3200

PJ3201

PJ3202

PJ4100

PJ8800

PJ2200

PJ4600

PJ5600

PJ5620

PJ5640

PJ6002

PJ6000

PJ6001

PJ6004

PJ8810

PJ8790

PJ8770

USB

LCD

CRT

TV

External

Microphone

Speaker (Left)

Speaker (Right)

Headphone

1st Battery

RTC Battery

Fan

DC-IN

Mini PCI

Wireless LAN antenna (left)

Wireless LAN antenna (right)

Figure 1-1 Front of the computer and the system units configuration

1-4 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.2 System Block Diagram 1 Hardware Overview

1.2 System Block Diagram

Figure 1-2 shows the system block diagram.

Exp.Memory
128/256/

Exp.Memory
128/256/
512MB

CD-ROM,
DVD-ROM,
Combo,
Combo+2,
DVD-Multi

Figure 1-2 System Block Diagram

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-5

1 Hardware Overview 1.2 System Block Diagram

The PC contains the following components.

 CPU

Intel® Mobile Pentium®4-M model

• 1.80/1.90/2.00/2.20GHz (Internal clock: 1.80/1.90/2.00/2.20GHz, Bus:
400MHz, Core voltage: 1.30/1.20V, Built-in NDP)

• Internal cache memory: 12KB (in CPU)

• Secondary cache memory: 512KB (in CPU)

Intel Mobile Celeron model

• 1.80/2.00/2.20GHz (Internal clock: 1.80/2.00/2.20GHz, Bus: 400MHz, Core
voltage: 1.30V, Built-in NDP)

• Internal cache memory: 12KB (in CPU)

• Secondary cache memory: 256KB (in CPU)

 Memory

Two memory slots capable of accepting 128MB, 256MB or 512MB memory modules
for a maximum of 1GB.

• 200-pin DDR-SDRAM (PC2100)

• Pipeline configuration

• 3.3V operation

• Support PC133

 BIOS ROM

• 8Mbit (Flash memory)

− 64KB used for logo

− 32KB used for setup and checksum

− 128KB used for system BIOS

− 64KB used for VGA-BIOS

− 64KB used for ACPI

− 8KB used for PnP

− 8KB used for password security

− 16KB used for booting

− 128KB are reserved

• 5.0V operation

• Access time : 120 ns or 90 ns

• Data transfer: 8-bit

1-6 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.2 System Block Diagram 1 Hardware Overview

 Chipset

This gate array has the following elements and functions.

• North Bridge (Intel Montara-GML)

− CPU interface and controller

− Host bus support

− System memory SDRAM controller

− Hub interface

− AGP interface

− Power management

− Graphic controller

• South Bridge (Intel ICH4-M)

− LAN controller

− IDE controller

− DMA controller

− USB interface

− SM Bus interface

− Interrupt controller

− Power management

− Firmware Hub interface

− Low Pin count (LPC) interface

− Real time clock

− AC’97 interface

− Audio controller

− Hub interface

 PC card controller (YEBISUSS)

− PCI interface (PCI Revision 2.2)

− Deeper Sleep control interface

− Chipset interface

Intel serial interrupt

− Card Bus /PC card controller (Yenta Version 2.2: 1 slot)
Parallel power control (Toshiba style)

− SD memory card controller (SDHC Version 1.2)

− SD IO card controller (Version 1.1)

− Smart Card interface debug port

− Docking station interface

Q Switch control, reset control

− External device interface
FDD/IDE hot plug plug-and-play control

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-7

1 Hardware Overview 1.2 System Block Diagram

 VGA controller

Imbedded in North Bridge

 Super I/O (SMSC-made LPC-47N259)

• FDC (765B FDC)

• Parallel port control (PS/2 bi-directional compatible, EPP compatible,

IEEE1284 ECP)

 Other main system chips

• EC/KBC (SMSC-made LPC microcontroller LPC47N259 x 1)

• PSC (Toshiba-made TMP87PM48U x 1)

• Thermal sensor (AnalogDevice-made ADM1032 x 1)

• Audio AMP (Mitsumi-made MM1517X x1)

• AC97-CODEC (AnalogDevice-made AD1981B x1)

 Mini PCI (802.11b: made by Agere or Cisco, 802.11a/b Combo: made by Atheros x

1)

2.4 GHz DSSS wireless LAN card is equipped in the mini PCI card slot. Conformity
with IEEE 802.11b. Transfer speed is maximum of 11Mbit/sec. Supports 128bit WEP.

 LAN (Intel-made Kinnereth (ED82562 x 1)

Controls LAN.
Supports 100Base-TX and 10Base-T.

 MODEM (Askey-made 1456VQL4A (INT) x 1)

Supported by MDC.
Uses secondary AC97 line.
Data and FAX transmission is available.
Supports ITU-TV.90 and V.92.
The transfer speed of data receiving is 56kbps, of data sending is 33.6kbps and of
FAX is 14,400bps. Actual speed depends on the quality of the line used.
Connected to telephone line through RJ11 modem jack.

1-8 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.3 3.5-inch USB Floppy Disk Drive 1 Hardware Overview

1.3 3.5-inch USB Floppy Disk Drive

This compact, lightweight and high-reliability FDD can be used with 720KB, 1.2MB and

1.44MB floppy disks.

Figure 1-3 shows the 3.5-inch FDD. Table 1-2 lists the specifications.

Figure 1-3 3.5-inch USB FDD

Table 1-2 3.5-inch USB FDD specifications

Item Specifications

Disk used 2DD 2HD 2HD

Unformatted capacity 1.0MB 1.6MB 2.0MB

Formatted capacity 720KB 1.2MB 1.44MB

Data transfer speed
（Kb/s）

Rotation speed（rpm）

250 500 500

300 360 300

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-9

1 Hardware Overview 1.4 2.5-inch Hard Disk Drive

1.4 2.5-inch Hard Disk Drive

The computer has a compact, high-capacity HDD with a height of 9.5 mm. The HDD
contains a 2.5-inch magnetic disk and magnetic heads.

Figure 1-4 shows a view of the 2.5-inch HDD and Tables 1-3 and 1-4 list the dimensions and
specifications.

Figure 1-4 2.5-inch HDD

Table 1-3 2.5-inch HDD dimensions (1/3)

Item

HDD2187B HDD2181B HDD2182B HDD2183B

Width (mm) 69.85

Height (mm) 9.5

Depth (mm) 100.0

Weight (g) (MAX) 95 99

Standard

TOSHIBA

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

Standard

Item

G8BC0000Z310 G8BC0000Z410 G8BC0000Z610

Width (mm) 69.85

Height (mm) 9.5

Depth (mm) 100.2

Weight (g) (MAX)

95 99

IBM

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1.4 2.5-inch Hard Disk Drive 1 Hardware Overview

Table 1-3 2.5-inch HDD dimensions (3/3)

Standard

Item

G8BC0000F210 G8BC0000F310 G8BC0000F410 G8BC0000F610

HITACHI

Width (mm) 70

Height (mm) 9.5

Depth (mm) 100.0

Weight (g)

91 95

Table 1-4 2.5-inch HDD Specifications (1/3)

Item

Specifications

TOSHIBA

HDD2187B HDD2181B HDD2182B HDD2183B

Storage size
(formatted)

Rotation speed (RPM) 4,200

Data transfer rate
(Mb/s)

Interface transfer rate
(MB/s)

Storage density (Kbpi) 543 618 618

Track density (Ktpi) 72 78.9 78.9

Average random seek
time (read) (ms)

Average random seek
time (write) (ms)

Motor startup time (ms) 4

20GB 30GB 40GB 60GB

164.6-257.1 154.3-298.0 154.3-298.0

100

12

-

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-11

1 Hardware Overview 1.4 2.5-inch Hard Disk Drive

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

Item

Specifications

IBM

G8BC0000Z310 G8BC0000Z410 G8BC0000Z610

Storage size (formatted) 30GB 40GB 60GB

Rotation speed (RPM) 4,200

Data transfer rate (MB/s) -

Interface transfer rate (MB/s) 100

Storage density (Kbpi) -

Track density (Ktpi) 63

Average random seek time
(read) (ms)

Average random seek time
(write) (ms)

Motor startup time (ms) 5.0

12

14

Table 1-4 2.5-inch HDD Specifications (3/3)

Specifications

Item

HITACHI

G8BC0000F210 G8BC0000F310 G8BC0000F410 G8BC0000F610

Storage size (formatted) 20GB 30GB 40GB 60GB

Rotation speed (RPM) 4,200

Data transfer rate (MB/s) 19.4-37.1 22.1-42.8

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

Storage density (Kbpi) 644 (MAX) 716 (MAX)

Track density (Ktpi) 70.0

Average random seek time
(read) (ms)

Average random seek time
(write) (ms)

Motor startup time (ms) 5.0

13

-

1-12 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.5 CD-ROM Drive 1 Hardware Overview

1.5 CD-ROM Drive

The CD-ROM drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CD. It is a
high-performance drive that reads at maximum 24-speed (3,600 KB per second).

The CD-ROM drive is shown in Figure 1-5. The specifications of the CD-ROM drive are
described in Table 1-5.

Figure 1-5 CD-ROM drive

Table 1-5 CD-ROM drive specifications

Item Specifications

TEAC G8CC00005810

Data transfer rate (MB/s) 16.7 (PIO Mode 0 to 4)

16.7 (Multiple word DMA Mode 0 to 2)

33.3 (Ultra DMA)

Average random access time 110 ms

Average full stroke access time 240 ms

Data buffer capacity 128 MB

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

CD-ROM XA Mode 2 (Forum 1, Forum 2)
Photo CD (single/multi-session),
Enhanced CD

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-13

1 Hardware Overview 1.6 DVD-ROM Drive

1.6 DVD-ROM Drive

The DVD-ROM drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CD, CD­R/RW and DVD. It is a high-performance drive that reads DVD at maximum 8-speed, and
reads CD at maximum 24-speed (3,600 KB per second).

The DVD-ROM drive is shown in Figure 1-6. The specifications of the DVD-ROM drive are
described in Table 1-6.

Figure 1-6 DVD-ROM drive

1-14 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.6 DVD-ROM Drive 1 Hardware Overview

Table 1-6 DVD-ROM drive dimensions (1/2)

Specifications

Item

DVD-ROM CD-ROM DVD-RAM

Toshiba G8CC0000R810

Burst data transfer rate
(MB/s)

Average random access time (ms) 100 95 170

Average random seek time (ms) 95 90 120

Average random full strike access
time (ms)

Data buffer capacity (KB) 192

DVD

Supported
formats

CD

16.7 (PIO Mode 4)

16.7 (Multi-word DMA Mode 2)

33.3 (Ultra DMA Mode 2)

160 160 350

DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18)
DVD-R (read), DVD-RW (read), DVD-RAM (read,
Version 2.1), DVD-RAM (read, Version 1.0)

CD-Audio, 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, CD­RW), CD-R (read), CD-RW (read)

Table 1-6 DVD-ROM drive dimensions (2/2)

Specifications

Item

DVD-ROM CD-ROM DVD-RAM

Hitachi G8CC00015H10

Burst data transfer rate
(MB/s)

Transfer rate (MB/s)

Average random access time (ms)

Data buffer capacity (KB) 256

DVD

Supported
formats

CD

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-15

33.3 (Ultra DMA Mode 2)

10.8

(Single/Dual

layer)

90 (Single)
130 (Dual)

DVD-ROM, DVD-RAM (2.6GB/4.7GB, read only),
DVD-R (3.95GB/4.7GB, read only),
DVD-RW (4.7GB, read only)

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

3.6

85

2.7

(2.6GB/4.7GB

Disc)

250

(4.7 GB Disc)

1 Hardware Overview 1.7 Combo Drive

1.7 Combo Drive

The Combo drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CD, CD­R/RW and DVD. It is a high-performance drive that reads DVD at maximum 8-speed, and
reads CD at maximum 24-speed (3,600 KB per second).

The Combo drive is shown in Figure 1-7. The specifications of the Combo drive are
described in Table 1-7.

Figure 1-7 Combo drive

Table 1-7 Combo drive specifications (1/5)

Item

Burst data transfer rate
(MB/s)

Average random access time (ms) CD-ROM: 105, DVD-ROM: 120, DVD-RAM: 130 (Typ.)

Average random seek time (ms) CD-ROM: 105, DVD-ROM: 120, DVD-RAM: 130 (Typ.)

Average full stroke access time
(ms)

Data buffer capacity 2,048KB

Supported
formats
(for play)

CD

DVD

CD-ROM: 105, DVD-ROM: 120, DVD-RAM: 130 (Typ.)

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

DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), DVD-R
(Ver.1.0, Ver.2.1)

16.7 (Multi-word DMA Mode 2)

Specifications

Toshiba SDR2412OAA

16.7 (PIO Mode 4)

33.3 (Ultra DMA Mode 2)

1-16 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.7 Combo Drive 1 Hardware Overview

Table 1-7 Combo drive specifications (2/5)

Item

For read

Transfer rate

Average access
time (ms)

Data buffer capacity 2MB

formats

(CD-ROM)

For read
(DVD-ROM)

CD-ROM 90

DVD-ROM 110

CD-DA, CD-ROM Mode1, Mode2, CD-ROM XA Mode 2

CD

DVD

(Form 1, Form 2), Photo CD (single/multi-session),
Enhanced CD, CD-TEXT Supported

DVD-ROM, DVD-Video, DVD-R (General, Authoring)
DVD-RAM (4.7GB, 2.6GB)

Specifications

TEAC G8CC0000Q810

1,545 to 3,600 KB/sec.

4,469 to 10,816 KB/sec.

Table 1-7 Combo drive specifications (3/5)

Item

Specifications

Panasonic G8CC00010810

Transfer rate

time (ms)

Data buffer capacity 2MB

Supported
formats

For read
(CD-ROM)

For read
(DVD-ROM)

For write
(CD-R)

For write
(CD-RW)

CD-ROM 130 Average access

DVD-ROM 180

CD CD-DA, CD-ROM, CD-ROM XA, CD-R, CD-RW, 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)

MAX 8x CAV (MAX 10,800KB/sec.)

MAX 24x CAV (MAX 3,600KB/sec.)

4x, 8x (CLV), MAX 16x, MAX 24x (ZCLV)

4x (CLV)

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-17

1 Hardware Overview 1.7 Combo Drive

Table 1-7 Combo drive specifications (4/5)

Item

For read

Transfer rate

Average access
time (ms)

Data buffer capacity 2MB

Supported
formats

(CD-ROM)

For read
(DVD-ROM)

CD-ROM 90

DVD-ROM 110

CD

DVD

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

DVD-ROM, DVD-R,(General, Authoring), DVD-Video,
DVD-RW, DVD-RAM(4.7GB, 2.6GB)

Specifications

TEAC G8CC0001D810

1,545 to 3,600KB/sec.

4,469 to 10,816KB/sec.

Table 1-7 Combo drive specifications (5/5)

Item

Specifications

Panasonic G8CC0001C810

For read

Transfer rate

Average access
time (ms)

Data buffer capacity 2MB

Supported
formats

(CD-ROM)

For read
(DVD-ROM)

CD-ROM 130

DVD-ROM 180

CD

DVD

CD-DA, CD-ROM XA, CD-R, CD-Extra(CD+), CD-RW,
Photo CD, Video CD, CD-text

DVD-Video, DVD-ROM, DVD-R(3.9GB, 4.7GB), DVD­RW, DVD-RAM(4.7GB)

MAX 24×CAV(MAX 3600KB/s)

MAX 8× CAV(MAX 10800KB/s)

1-18 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.8 Combo+2 drive 1 Hardware Overview

1.8 Combo+2 drive

The Combo+2 drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CD, CD­R/RW and DVD. It is a high-performance drive that reads DVD at maximum 8-speed, writes
DVD-R/-RW at 1-speed, and reads CD at maximum 24-speed (3,600 KB per second).

The Combo+2 drive is shown in Figure 1-8. The specifications of the Combo+2 drive are
described in Table 1-8.

Figure 1-8 Combo+2 drive

Table 1-8 Combo+2 drive specifications

Specifications

Item

DVD-ROM CD-ROM DVD-RAM

33.3 (Ultra DMA)
Burst data transfer rate
(MB/s)

Average random access time (ms) 100 95 170

Average random seek time (ms) 95 90 120

Average full stroke access time
(ms)

Data buffer capacity 2MB

DVD (read) DVD-ROM (DVD-5/-9/-10/-18), DVD-R (Ver.1.0,

Supported
formats

CD (read) CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-

16.7 (PIO mode 4)

16.7 (Multi word DMA Mode 2)

160 160 350

Ver.2.0), DVD-RW (Ver.1.0, Ver.1.1), DVD-RAM
Ver.2.1/1.0

ROM XA, CD-I, CD-I Bridge (Photo-CD, Video-CD),
Multisession CD (Photo-CD, CD-EXTRA, CD-R, CD­RW, Portfolio), CD-R, CD-RW

Toshiba G8CC0000ZH10

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-19

1 Hardware Overview 1.9 DVD Multi drive

1.9 DVD Multi drive

The DVD Multi drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CD, CD­R/RW and DVD. It is a high-performance drive that reads DVD at maximum 8-speed, writes
DVD-R/-RW at 1-speed, and reads CD at maximum 24-speed (3,600 KB per second).

The DVD Multi drive is shown in Figure 1-9. The specifications of the DVD Multi drive are
described in Table 1-9.

Figure 1-9 DVD Multi drive

Table 1-9 DVD Multi drive specifications

Specifications

Item

DVD-ROM CD-ROM DVD-RAM

Burst data transfer rate
(MB/s)

Access time (ms)
1/3 Stroke Access (typ.)

Data buffer capacity 2MB

DVD DVD-VIDEO, DVD-ROM,

Supported
formats

CD CD-DA, CD-ROM, CD-R/W, CD-R,

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

180 130 -

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

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

Panasonic G8CC00019810

33.3 (Ultra DMA mode 2)

CD-R, CD-RW

1-20 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.10 Keyboard 1 Hardware Overview

1.10 Keyboard

An 85(US)-/86(UK)- key (101 emulation) keyboard is mounted on the system unit. The
keyboard is connected to membrane connector on the system board and controlled by the
keyboard controller.

Figure 1-10 shows a view of the keyboard.

See Appendix E for details of the keyboard layout.

Figure 1-10 Keyboard

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-21

1 Hardware Overview 1.11 TFT Color Display

1.11 TFT Color Display

The TFT color display has a 14.1-inch (XGA) or 15.0-inch (XGA, SXGA+) LCD module
and the FL inverter board.

1.11.1 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. North
Bridge can control both internal and external XGA- or SXGA+- support displays
simultaneously.

Figure 1-11 shows a view of the LCD module and Table 1-10 lists the specifications.

Figure 1-11 LCD module

1-22 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.11 TFT Color Display 1 Hardware Overview

Table 1-10 LCD module specifications (14.1-inch XGA TFT) (1/3)

Specifications

Item

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

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

G33C00012210, G33C00013110, G33C00014110,

VF2093P01, VF2058P01, VF2048P01, VF2062P01

Display range (mm)

285.696(H) x 214.272(V)

Table 1-10 LCD module specifications (15.0-inch XGA TFT) (2/3)

Item

G33C0000L110 G33C0000G110 G33C0000M110 G33C0000Q110

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

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

Display range (mm) 304.128(H) x 228.096(V)

Specifications

Table 1-10 LCD module specifications (15.0-inch SXGA+ TFT) (3/3)

Item

G33C0000P110 G33C0000N110 G33C0000R110

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

Dot spacing (mm) 0.2175(H) x 0.2175(V)

Specifications

Display range (mm) 304.5(H) x 228.375(V)

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-23

1 Hardware Overview 1.11 TFT Color Display

1.11.2 FL Inverter Board

The FL inverter board supplies a high frequency current to illuminate the LCD module FL.

Table 1-11 lists the FL inverter board specifications.

Table 1-11 FL inverter board specifications

Item Specifications

Input

Output

Voltage (V) DC5

Power (W) 7

Voltage (V) 750

Current (mA) 6.00

Power (W) 5W/7VA

1-24 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.12 Power Supply 1 Hardware Overview

1.12 Power Supply

The power supply supplies 28 different voltages to the system board.

The power supply microcontroller has the following functions.

1. Judges if the DC power supply (AC adapter) is connected to the computer.

2. Detects DC output and circuit malfunctions.

3. Controls the battery icon, and DC IN icon.

4. Turns the battery charging system on and off and detects a fully charged battery.

5. Turns the power supply on and off.

6. Provides more accurate detection of a low battery.

7. Calculates the remaining battery capacity.

8. Controls the transmission of the status signal of the main battery.

Table 1-12 lists the power supply output specifications.

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-25

1 Hardware Overview 1.12 Power Supply

Table 1-12 Power supply output rating

Name Voltage [V] Name/Use

PPV

1R5-C1V 1.5 Power 1.5V&1.2V

1R5-S1V 1.5 ICH4-M

LAN1R5-E1V 1.5 ICH4-M (LAN)

1R5-P1V 1.5 Montara-GML, ICH4-M

1R2-P1V 1.2 Montara-GML

1R2VID-P1V 1.2 CPU

2R5-B2V 2.5 Montara-GML, Memory

2R5-P2V 2.5 Montara-GML

1R25-B1V 1.25 Memory

MR1R25-B1V 1.25 Memory

E3V 3.3 YEBISU3S-GA, Mini-PCI, MDC

LAN-E3V 3.3 ICH4-M (LAN)

B3V 3.3 YEBISU3S-GA, Mini PCI, PC-Card

P3V 3.3 Montara-GML, ICH4-M

PNL-P3V 3.3 LCD

E5V 5.0 USB Power, RGB

B5V 5.0 PC-Card

P5V 5.0 TouchPad, HDD, ODD, FAN, LEDs

FL-P5V 5.0 FL-inverter

SND-P5V 5.0 Sound

A4R7-P4V 4.7 Sound

15-EBV 9.0-11.5 Pull-ups

M5V 5.0 LEDs, Battery

S3V 5.0 EC/KBC, ICH4-M

S5V 5.0 ICH4-M

MCV 5.0 PSC

R3V 2.0-3.5 ICH4-M (RTC)

1.30 -

1.00

CPU, Montara-GML, ICH4-M

1-26 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.13 Batteries 1 Hardware Overview

1.13 Batteries

The PC has the following two batteries.

 Main battery

 Real time clock (RTC) battery

Table 1-13 lists the specifications for these two batteries.

Table 1-13 Battery specifications

Battery Name Battery

Main battery

Real time clock

(RTC) battery

G71C0002N210

G71C0002N110

G71C0002P210

G71C0002P110

P71035017110

Element

lithium ion 10.8V 3,600mAh

lithium ion 10.8V 4,400mAh

Nickel metal

hydride

Output

Voltage

3.0V 17mAh

Capacity

1.13.1 Main Battery

The main battery is the primary power supply for the computer when the AC adapter is not
connected. In resume (instant recovery) mode, the main battery maintains the current status
of the computer.

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-27

1 Hardware Overview 1.13 Batteries

1.13.2 Battery Charging Control

Battery charging is controlled by a power supply microprocessor. The power supply
microprocessor controls power supply and detects a full charge when the AC adaptor and
battery are connected to the computer.

 Battery Charge

When the AC adapter is connected, normal charging is used while the system is
turned on, and quick charge is used while the system is turned off or in suspend mode.
Table 1-14 shows the time required for charges of main battery.

Table 1-14 Time required for charges of main battery

Condition Charging Time

3,600mAh About 3.5 to 9 hours or longer Normal charge

4,400mAh About 4 to 12 hours or longer

Charge is stopped in the following cases.

1. The main battery is fully charged

2. The main battery is removed

3. Main battery or AC adapter voltage is abnormal

4. Charging current is abnormal

 Data preservation time

When turning off the power in being charged fully, the preservation time is as
follows:

3,600mAh About 2.6 hours Quick charge

4,400mAh About 2.6 hours

Table 1-15 Data preservation time

Condition Preservation time

3,600mAh About 3 days Standby Mode

4,400mAh About 3.6 days

3,600mAh About 25 days Boot Mode

4,400mAh About 30 days

1-28 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

1.13 Batteries 1 Hardware Overview

1.13.3 RTC Battery

The RTC battery provides the power supply to maintain the date, time, and other system
information in memory.

Table 1-15 lists the Time required for charges of RTC battery.

Table 1-16 Time required for charges of RTC battery

Condition Time

Power ON (Lights Power LED) 8 hours

Power OFF (Doesn’t light Power LED) Doesn’t charge

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 1-29

1 Hardware Overview 1.14 AC Adapter

1.14 AC Adapter

The AC adapter is used to charge the battery.

Table 1-17 lists the AC adapter specifications.

Table 1-17 AC adapter specifications

Item Specifications

G71C00002T G71C00002S

Input voltage AC100V/240V 100V/240V

Input frequency 50Hz/60Hz 50Hz/60Hz

No load input power 0.5W or less 0.5W or less

Output voltage 15.0V 15.0V

Output current 5.0A 4.0A

1-30 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

Chapter 2

Troubleshooting Procedures

2 Troubleshooting Procedures

2

2-ii Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

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 Power Status Check ............................................................... 2-6

Procedure 2 Error Code Check .................................................................. 2-8

Procedure 3 Connection Check................................................................ 2-14

Procedure 4 Charging 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 Printer Port LED Check on Suspend/Resume Mode ........... 2-30

Procedure 4 Diagnostic Test Program Execution Check ......................... 2-38

Procedure 5 Replacement Check ............................................................. 2-38

2.5 3.5” FDD Troubleshooting ......................................................................................2-39

Procedure 1 FDD Head Cleaning Check ................................................. 2-39

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

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

2.6 2.5” HDD Troubleshooting...................................................................................... 2-42

Procedure 1 Partition Check..................................................................... 2-42

Procedure 2 Message Check .................................................................... 2-43

Procedure 3 Format Check....................................................................... 2-44

Procedure 4 Diagnostic Test Program Execution Check ......................... 2-45

Procedure 5 Connector Check and Replacement Check.......................... 2-46

2.7 Keyboard Troubleshooting ......................................................................................2-47

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

Procedure 2 Connector Check and Replacement Check.......................... 2-47

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-iii

2 Troubleshooting Procedures

2.8 Display Troubleshooting.......................................................................................... 2-48

Procedure 1 Diagnostic Test Program Execution Check ......................... 2-48

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

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

2.9 Touch Pad Troubleshooting..................................................................................... 2-50

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

Procedure 2 Connector and Cable Check................................................. 2-50

Procedure 3 Replacement Check ............................................................. 2-50

2.10 Optical Drive Troubleshooting ................................................................................ 2-51

Procedure 1 Diagnostic Test Program Execution Check ......................... 2-51

Procedure 2 Connector Check and Replacement Check.......................... 2-51

2.11 Modem Troubleshooting.......................................................................................... 2-52

Procedure 1 Diagnostic Test Program Execution Check ......................... 2-52

Procedure 2 Connector Check and Replacement Check.......................... 2-52

2.12 LAN Troubleshooting.............................................................................................. 2-53

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

Procedure 2 Connector Check and Replacement Check.......................... 2-53

2.13 Sound Troubleshooting............................................................................................ 2-54

Procedure 1 Diagnostic Test Program Execution Check ......................... 2-54

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

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

2.14 Wireless LAN Troubleshooting............................................................................... 2-56

Procedure 1 Transmitting-Receiving Check ............................................ 2-56

Procedure 2 Antennas' Connection Check ............................................... 2-57

Procedure 3 Antenna Check..................................................................... 2-58

Procedure 4 Replacement Check ............................................................. 2-59

2-iv Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2 Troubleshooting Procedures

Figures

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

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

Figure 2-3 Printer port LED board ................................................................................ 2-19

Figure 2-4 Antenna Test cable....................................................................................... 2-58

Tables

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

Table 2-2 DC IN icon..................................................................................................... 2-7

Table 2-3 Printer port LED boot mode status ............................................................. 2-21

Table 2-4 Printer port LED suspend mode error status................................................ 2-31

Table 2-5 Printer port LED resume mode error status ................................................ 2-34

Table 2-6 FDD error code and status ........................................................................... 2-40

Table 2-7 2.5” Hard disk drive error code and status................................................... 2-45

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-v

2 Troubleshooting Procedures

2-vi Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.1 Troubleshooting 2 Troubleshooting Procedures

2

2.1 Troubleshooting

Chapter 2 describes how to determine which Field Replaceable Unit (FRU) in the computer is
causing the computer to malfunction. (The “FRU” means the replaceable unit in the field.)
The FRUs covered are:

1. Power supply 7. Touch pad

2. System Board 8. Optical Drive

3. 3.5” USB FDD 9. Modem

4. 2.5” HDD 10. LAN

5. Keyboard 11. Sound

6. Display 12. Wireless LAN

The Test Program operations are described in Chapter 3. Detailed replacement procedures are
given in Chapter 4.

The following tools are necessary for implementing the Diagnostics procedures:

1. Diagnostics Disk (Test program for maintenance)

2. Phillips screwdrivers

NOTE: Be sure to use the PH point size “0” screwdriver complying with the ISO/DIS
8764-1:1996.

3. Toshiba MS-DOS system FD

4. Work disk (for USB FDD testing)

5. Cleaning disk kit (for USB FDD head cleaning)

6. Printer port LED

7. Wraparound connector for PC card

8. Tester

9. External CRT

10. External USB FDD (for no internal-FDD model)

11. External USB keyboard

12. External USB mouse

13. External USB test module

14. External USB cable

15. PS2 mouse

16. Headphone

17. Microphone

18. Toshiba CD-ROM test disk (ZA1217P01/P000204190)

19. Toshiba-EMI DVD-ROM test disk TSD-1

20. Music CD

21. CD-RW media (recommended :RICOH, Mitsubishi Kagaku supporting 4x media)

22. DVD-ROM media (normal media on the market)

23. RJ-11 connector checker LED

24. LAN wraparound connector

25. Speaker with an input terminal for S/PDIF

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

27. Antenna test cable

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 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 procedure is
executed. Before going through the flowchart steps, check the following:

 Make sure that Toshiba Windows

®

2000/XP-HE/XP-PRO is installed on the hard disk.

Non-Toshiba operating systems can cause the computer malfunction.

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

 Make sure the external floppy disk drive is empty.

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2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures

START

Connect the AC adapter to the DC IN socket.

Does the DC IN icon glow?

Ye s

Does the Battery icon glow?

Ye s

Turn the Power Switch on.

Does the DC IN icon flash when the

power is turned on?

No

Is an error message displayed?

No

No

Perform the Power Supply

Troubleshooting Procedures

in section 2.3.

Perform the Power Supply

No

Troubleshooting Procedures

in section 2.3.

Perform the Power Supply

Ye s

Troubleshooting Procedures

in section 2.3.

Ye s

Perform the System Board

Troubleshooting Procedures

in section 2.4.

Is the “TOSHIBA” logo

message displayed?

Ye s

If the “Password=” message displays,

type the password.

Is Toshiba Windows 2000/XP-HE/XP-

Pro being loaded?

Ye s

1

Figure 2-1 Troubleshooting flowchart (1/2)

Perform the Display

No

Troubleshooting Procedures

in section 2.8.

No

Perform the 2.5” Hard Disk Drive

Troubleshooting Procedures

in section 2.6.

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2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart

A

1

Do typed characters

appear correctly?

Ye s

Insert the diagnostic disk into FDD

and run the diagnostics test program.

(The reboot of the PC is needed.)

Is the diagnostic test loaded?

Ye s

Perform each test of the diagnostic test.

Is an error

detected by any of the

diagnostic test?

No

Perform the

No

Troubleshooting Procedures

in section 2.7.

Perform the 3.5”Floppy Disk Drive

No

Troubleshooting Procedures

in section 2.5.

Ye s

fter conforming which diagnostic
test has detected an error, perform
the appropriate procedures as
outlined below.

Keyboard

System is normal.

END

Figure 2-1 Troubleshooting flowchart (2/2)

2-4 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures

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

1. If an error is detected on the system test, memory test, display test, CD-ROM/DVD­ROM test, printer test, Async test, expansion test, real timer test or
Sound/Modem/LAN 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 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.

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

2.3 Power Supply Troubleshooting

The power supply controller 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: Power Status Check

Procedure 2: Error Code Check

Procedure 3: Connection Check

Procedure 4: Charging Check

Procedure 5: Replacement Check

Procedure 1 Power Status Check

The following icons indicate the power supply status:

 Battery icon

 DC IN icon

The power supply controller displays the power supply status with the Battery icon and the
DC IN icon as listed in the tables below.

Table 2-1 Battery icon

Battery icon Power supply status

Lights orange Battery is charged and the external DC is input. It has no relation with

ON/OFF of the system power.

Lights green Battery is fully charged and the external DC is input. It has no relation

with ON/OFF of the system power.

Blinks orange
(even intervals)

Doesn’t light Any condition other than those above.

The battery level is low while the system power is ON.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

Table 2-2 DC IN icon

DC IN icon Power supply status

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

Blinks orange Power supply malfunction*1

Doesn’t light Any condition other than those above.

*1 When the power supply controller detects a malfunction, the DC IN icon blinks

orange. It shows an error code.

When the icon is blinking, perform the following procedure.

1. Remove the battery pack and the AC adapter.

2. Re-attach the battery pack and the AC adapter.

If the icon is still blinking after the operation above, check the followings:

Check 1 If the DC IN icon blinks orange, go to Procedure 2.

Check 2 If the DC IN icon does not light, go to Procedure 3.

Check 3 If the battery icon does not light orange or green, go to Procedure 4.

NOTE: Use the supplied AC adapter (G71C0002T210 or G71C0002S210).

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

Procedure 2 Error Code Check

If the power supply microprocessor detects a malfunction, the DC IN icon blinks orange. The
blink pattern indicates an error as shown below.

 Start Off for 2 seconds

 Error code (8 bit)

“1” ON for one second

“0” ON for half second

Interval between data bits Off for half second

The error code begins with the least significant digit.

Example: Error code 13h (Error codes are given in hexadecimal format.)

Read

On

Off

Start

1

D0 D1 D2

1

Order

0

01

D3

D4

00

D5

D6

0

D7

Check 1 Convert the DC IN icon blink pattern into the hexadecimal error code and

compare it to the tables below. Then go to Check 2.

 DC power supply (AC adapter)

Error code Meaning

10h AC Adapter output voltage is over 16.5V.

11h Common Dock output voltage is over 16.5V.

12h Current from the DC power supply is over 6.60A.

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

14h Abnormal current has been sensed.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

 Main Battery

Error code Meaning

21h Main battery charge current is over 6.60A.

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

23h Main battery charge current is over 3.9A when AC adapter is not

connected.

24h Abnormal current has been sensed.

25h Main battery charge current is over 0.3A.

 Second Battery

Error code Meaning

31h Second battery charge current is over 6.60A.

32h Second battery discharge current is over 0.5A when there is no load.

33h Second battery charge current is over 3.9A. when AC adapter is not

connected.

34h Abnormal current has been sensed.

35h Second battery charge current is over 0.3A.

 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

 1R5-C1V output (P61)

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 while the computer is suspended.

54h 1R5-C1V voltage is abnormal while the computer is shutdown. (CV

support)

support)

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

(CV support)

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

 1R5-C1V output (P62)

Error code Meaning

60h 1R5-C1V voltage is over 1.80V when the computer is powered on/off.

61h 1R5-C1V voltage is 1.275V or less when the computer is powered on.

62h 1R5-C1V voltage is 1.275V or less when the computer is booting up.

63h 1R5-C1V voltage is 1.275V or less while the computer is suspended.

64h 1R5-C1V voltage is abnormal while the computer is shutdown. (CV

support)

65h 1R5-C1V voltage is 1.275V or less when the computer is booting up.

(CV support)

 PPV output

Error code Meaning

70h PPV voltage is over 1.56V when the computer is powered on/off.

71h PPV voltage is 0.68V or less when the computer is powered on.

72h PPV voltage is 0.68V or less when the computer is booting up.

73h PPV voltage is 0.68V or more when the computer is powered off.

 1R2VID-P1V output

Error code Meaning

80h 1R2VID-P1V voltage is over 1.44 when the computer is powered

81h 1R2VID-P1V voltage is 1.02 or less when the computer is powered on.

82h 1R2VID-P1V voltage is 1.02 or less when the computer is booting up.

83h 1R2VID-P1V voltage is 1.02 or more when the computer is powered

84h 1R2VID-P1V voltage is 1.02 or less when the computer is suspended.

on/off.

off.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

 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.

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.

 E3V output

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.

 PPV output

Error code Meaning

 1R2-P1V output

Error code Meaning

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.

B0h PPV voltage is over 1.56V when the computer is powered on/off.

B1h PPV voltage is 0.68V or less when the computer is powered on.

B2h PPV voltage is 0.68V or less when the computer is booting up.

B3h PPV voltage is 0.68V or more when the computer is powered off.

C0h 1R2-P1V voltage is over 1.44V when the computer is powered on/off.

C1h 1R2-P1V voltage is 1.02V or less when the computer is powered on.

C2h 1R2-P1V voltage is 1.02V or less when the computer is booting up.

C3h 1R2-P1V voltage is 1.02V or more when the computer is powered off.

C4h 1R2-P1V voltage is 1.02V or less when the computer is suspended.

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

 1R25-B1V output

Error code Meaning

D0h 1R25-B1V voltage is over 1.50V when the computer is powered on/off.

D1h 1R25-B1V voltage is 1.063V or less when the computer is powered on.

D2h 1R25-B1V voltage is 1.063V or less when the computer is booting up.

D3h 1R25-B1V voltage is 1.063V or more when the computer is powered

off.

D4h 1R25-B1V voltage is 1.063V or less when the computer is suspended.

 2R5-B2V output

Error code Meaning

C0h 2R5-B2V voltage is over 3.00V when the computer is powered on/off.

C1h 2R5-B2V voltage is 2.125V or less when the computer is powered on.

C2h 2R5-B2V voltage is 2.125V or less when the computer is booting up.

C3h 2R5-B2V voltage is 2.125V or more when the computer is powered off.

C4h 2R5-B2V voltage is 2.125V or less when the computer is suspended.

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

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

 Make sure the AC adapter 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 adapter and AC power cord. If the error still exists, go to

Procedure 5.

Check 3 In the case of error code 21h:

 Go to Procedure 3.

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

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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

Procedure 3 Connection Check

The wiring diagram related to the power supply is shown below:

System

Board

Battery pack

Power
Cord

AC

adapter

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

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

IN 15 V socket and wall outlet. If these cables are connected correctly, go to Check

2.

Check 2 Replace the AC adapter and the AC power cord with new ones.

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

• If the battery icon does not light, go to Check 3.

Check 3 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.

Procedure 4 Charging Check

Check if the power supply controller charges the battery pack properly. Perform the following
procedures:

Check 1 Make sure the AC adapter is firmly plugged into the DC IN socket.

Check 2 Make sure the battery pack 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 while connecting the battery pack and the AC adapter. If the battery
pack is still not charged, go to Check 4.

Check 4 The battery’s temperature is too high or low. Return the temperature to normal

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

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

to Procedure 5.

2-14 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures

Procedure 5 Replacement Check

The power is supplied to the system board by the AC adapter. If either the AC adapter or the
system board was damaged, perform the following Checks.

To disassemble the computer, follow the steps described in Chapter 4, Replacement
Procedures.

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

properly, perform Check 2.

Check 2 Replace the system board with a new one.

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting

2.4 System Board Troubleshooting

This section describes how to determine if the system board is defective. 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: Printer Port LED Check on Suspend/Resume Mode

Procedure 4: Diagnostic Test Program Execution Check

Procedure 5: 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 MS-DOS or Windows 2000/XP-HE/ XP-PRO is properly loaded, go to Procedure 4.

Check 1 If one of the following error messages is displayed on the screen, press the F1 key

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 the F1 key as the message instructs, the SETUP screen appears to set

the system configuration. If error message (b) appears often when the power is
turned on, replace the RTC battery. If any other error message is displayed,
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 ......

Check 2 If the following error message is displayed on the screen, press any key as the

message instructs. If any other error message displays, perform Check 3.
The following error message appears when data stored in RAM under the resume
function is lost because the battery has become discharged or the system board is
damaged. Go to Procedure 3.

WARNING: RESUME FAILURE.

PRESS ANY KEY TO CONTINUE.

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Check 3 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) is displayed,
go to Procedure 5.

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

If error message (19), (20) or (21) is displayed, go to the 2.5” HDD
Troubleshooting Procedures in Section 2.6.

If error message (22) or (23) is displayed, go to the 3.5” 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) HDD #0 ERROR
(21) HDD #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 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

Figure 2-3 shows the function of the printer port LED board.

Lighting (ON)

Not-lighting (OFF)

(Binary notation)

(Hexadecimal notation)

Printer port LED status = 35 H

Figure 2-3 Printer port LED board

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting

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

System Board

Printer Port
LED

PJ3202

1. Turn on the computer’s power and set it to boot mode.

2. Turn off the computer’s power.

3. Plug the printer port LED into the parallel port.

4. While holding down the space bar, turn on the computer’s power.

5. Read the LED status from left to right.

6. Convert the status from binary to hexadecimal notation.

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

8. If the final LED status matches any of the test status values in Table 2-3, perform
Check 1.

NOTE: If an error condition is detected by the IRT test, the printer port LED displays the
status for the last test item which ended correctly. For example, when the printer port LED
displays 0Ch and halts, the IRT test has already completed the Vector initialization. In this
instance, the IRT indicates an error has been detected during the NDP initialization.

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

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

LED Status Test item Contents

Start Clear of software reset bit

Prohibition of APIC

Initialization of MCHM

Initialization of ICHM

Initialization of Super I/O

Initialization of debug port

Dummy read of 3rd Bus data

B0h Flash ROM check PIT CH0 initialization (for HOLD_ON)

BIOS rewrite factor flag initialization

CHECK SUM CHECK

Transition to protected mode

Boot block checksum (skip when returned to S3)

The program halts when checksum error occurred.

Checksum other than boot block (skip when
returned to S3)

EC/KBC rewrite check B1h KBC initialization

If “rewrite” is requested, go to “BIOS rewrite
process”.

Transition of process to System BIOS IRT when

returned to S3)

Key input

B2h BIOS rewrite request check BIOS rewrite request check if Checksum check

B3h BIOS rewrite (1)

B5h Saving of key scan code

Setting of TASK_1ms_TSC

B6h BIOS rewrite FAN control

Sound initialization (for BEEP sound)

System speaker enable

Check of Tilde key ( key) and Tab key if a key
is pressed

error occurred on except Boot Block or rewrite is
required by user. “BIOS rewrite process”.

Transits to System BIOS IRT.

Initialization of ICHM. D31

DRAM configuration

Permission of cache (L1 cache only)

Memory clear

Transition to real mode and copy of BIOS to RAM

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting

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

LED Status Test item Contents

(B6H) (BIOS rewrite) Cancel of sound mute

Setting of volume to max.

Display of messages (EC/KBC

UPDATE/DAMAGED, BIOS UPDATE/DAMAGED)

Key input

Prohibition of USB

BEEP

Waiting for Key input

Reading of CHGBIOSA.EXE/CHGFIRMA.EXE

FDC RESET

Setting of parameters for 2HD (1.44MB)

Reading of first sector, If it is the data of 1.44MB

(2HD), the media type is definite.

Setting of parameters for 2DD (720KB)

Reading of EXE header of “CHGBIOSA.EXE”

Execution of “CHGBIOSA.EXE” and

(B3h) (BIOS rewrite)

00h Initialization of PIT channel 1 Initialization of PIT channel 1 (Setting the refresh

Retrieval of “CHGBIOSA.EXE” from the root
directory.

Calculates the directory start header and sector.

Reads one sector of the root directory.

Retrieval the entry of “CHGBIOSA.EXE” and
“CHGFIRMA.EXE” from the sector read.

and “CHGFIRMA.EXE”, key input when error
occurred.

“CHGFIRMA.EXE”

Prohibition of cache

Initialization of H/W (before DRAM recognition)

Initialization of MCHM

Initialization of ICH4M.D31.Func0

Initialization of ICH4M.D31.Func1

Initialization of USB.Func0,1,2,7

Initialization of ICH4M.D31.Func3

Initialization of ICH4M.D31.Func5

Initialization of FLUTE

interval “30µs”)

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

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

LED Status Test item Contents

01h Memory check DRAM type and size check (at Cold boot)

If RAM size is "0", the program halts

02h CMOS check and initialization Permission of cache (L1/L2 cache)

CMOS access test (at Cold boot only)

CMOS checksum check

CMOS data initialization (1)

IRT status setting (Setting of “Boot status” and “IRT

Storing of DRAM size

In the case of CMOS error, no resume occurs.

03h Resume branch check If “resume status code” is not set, no resume

(at Cold boot only) Resume error check

S3 return error Resume error F17AH

SM-RAM checksum check Resume error F173H

Memory configuration change check

Checksum check of system BIOS RAM area

Checksum check of PnP RAM

To resume process (RESUME_MAIN)

Resume error process

Returns the CPU clock to “Low”

Prohibition of all SMI

Clears resume status

Returns to ROM

SM-RAM stack area test

If the SM-RAM cannot be used as stack, the
program halts

Cache configuration

If any error occurred, the program halts

CMOS battery level check

busy flag” and “0” to the remaining bits)

occurs

Resume error F173H

Resume error F179H

Checksum check of Expanded Memory

Resume error F176H

Resume error F177H

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting

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

LED Status Test item Contents

(03h) Forwards the area of C0000h to EFFFFh to PCI

(prohibition of DRAM)

Sets resume error request

Copying ROM/RAM of system BIOS (HLT when

error occurred)

04h SMRAM initialization SMRAM initialization

WakeUp factor check

SMRAM base rewriting and CPU state map saving

for BIOS

Permission of SMI based on ASMI

05h Initialization of devices PIT test (at Cold boot only) and initialization

which need initialization Setting of test pattern to channel 0 of PIT#0

before PCI initialization Check whether the set test pattern can be read

Initialization of PIT channel 0 (Setting of timer

interruption interval to 55ms)

Initialization of PIT channel 2(Setting of the

sound generator frequency to 664Hz)

Test of PIT channel 2 (Check whether the

CPU clock measurement

Permission of SMI except auto-off function

Battery discharge current control (1CmA)

CPU Initialization

microcode update

Judgement of CPU type

Geyserville support check

Setting of CPU clock to “high"

Graphics Aperture Size setting

Test of PIT channel 1 (Check whether the refresh
signal works normally in 30 micro-s refresh interval.)
The system halts when the time is out.

speaker gate works normally.)

AC adapter rated over current control

Dividing procedures for time measuring by IRT

Setting for clock generator

Check of parameter block A

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures

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

LED Status Test item Contents

06h

Initialization of temperature control information

KBC initialization

VGA display off, Reset control

Sound initialization

PC multi-box status acquisition

Control of built-in LAN permission/prohibition

PIC initialization

PIC test

Password Initialization

07h PCI bus initialization (connection of DS Bus)

Initialization of LAN information

WakeUp factor check

08h

CMOS data initialization (2)

PnP initialization

Setting of setup items

H/W setting based on PnP resource

Saving memory configuration to buffer

Reading of EC version

Update of flash ROM type

Judging of destination (Japan or except Japan)
based on DMI data

CMOS default setting check (Default set if Bad
battery, Bad checksum (ROM, CMOS) is
detected)

ACPI table initialization (for execution of option
ROM)

Initialization of devices which need initialization
before PCI bus initialization

AC’97 control

HC initialization, USB Device recognition and
initialization

Task generation for waiting INIT_PCI
completion

Waiting for the completion of Multi-box status
check

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-25

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

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

LED Status Test item Contents

09h

PCI automatic configuration Making of work for automatic configuration

Acquisition of PCI IRQ

PCI configuration

Saving of VGA configuration result

0Ah

Initialization of H/W needed

HDD initialization sequence start

Enabling power off

Task generation for waiting
PnP resource making
completion

Serial interruption control (before use of interruption)

PnP H/W initialization PC card slot initialization

SIO initialization (for models supporting SIO)

FIR initialization (for models supporting FIR)

Task generation for waiting
PCI_CONFIGURATION
completion

after PCI configuration

Task generation for waiting PnP resource making
completion

Task generation for waiting PCI_CONFIGURATION
completion

Printer port setting (for models supporting printer
port)

Output code generation

0Bh FIRST_64KB_CHECK Check of first 64KB memory

0Ch INIT_INT_VECTOR Initialization of vectors

0Dh INIT_NDP Initialization of NDP

0Eh INIT_SYSTEM

(Initialization of system)

Timer initialization start

Initialization of buffers for power saving

EC initialization & Reading of battery information

Update of system BIOS (Update of model name and

0Fh INIT_DISPLAY Waiting for VGA chip initialization completion

VGA BIOS initialization

10h DISP_LOGO Logo display

Storing of CMOS error status to
IRT_ERR_STS_BUF

EDID information for LCD)

2-26 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.4 System Board Troubleshooting 2 Troubleshooting Procedures

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

LED Status Test item Contents

11h SYS_MEM_CHECK Check of conventional memory (Cold boot only)

12h EXT_MEM_CHECK Exception check in protected mode (Cold boot only)

13h (14h) INIT_SYS_MEM

(LED=14h if error occurred
during exception check in
protected mode)

15h CHK_DMA_PAGE Check of DMA Page Register (Cold boot only)

16h CHECK_DMAC Check of DMAC (Cold boot only)

17h INIT_DMAC Initialization of DMAC (Cold boot only)

18h CHECK_PRT Check of printer port existence (for models

19h CHECK_SIO Check of SIO (for models supporting SIO)

1Ah BOOT_PASSWORD Check of password

(In the case of “Reboot”) Waiting for HDD initialization completion

Check of key input during IRT (waiting for KBC

ATA priority initialization

(In the case of “Boot”) BM loading process (for models supporting

Initialization of BM (for models supporting

Initialization of conventional memory (Reboot only)

supporting PRIT)

initialization completion)

fingerprint certification function)

fingerprint certification function)

Check of key input during IRT (waiting for KBC

initialization completion)

Input of password

BM open (for models supporting fingerprint

certification function)

1Bh EX_IO_ROM_CHECK Check of option I/O ROM

1Ch PRE_BOOT_SETUP Saving of value in 40:00h (for SIO saving/restoring)

Setting of font address for resume password

Setting of repeat parameter for USB KB

Final check of key input during IRT

Storing of T_SHADOW_RAM_SIZE

Update of system resource before boot

Rewriting of memory map data of INT15h E820h

function

Waiting for AC-Link initialization completion

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-27

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

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

LED Status Test item Contents

(1Ch) (PRE_BOOT_SETUP) Updating of table for DMI

Copy of ACPI table to top of expansion memory

Waiting for completion writing of PSC version to BIOS

Waiting for clock generator setting completion (The

system halts in LED = 1DH when an error is detected.)

Waiting for serial port initialization completion (for models

supporting SIO)

Cancel of NMI Mask

TIT check sum

Clearance of the IRT flag of Runtime side

Update of check sum of Runtime side

Hibernation branch (for models supporting BIOS

Hibernation )

Initialization of Bluetooth (For models supporting

Bluetooth)

Check of existence of object maintenance cards

Prohibition of unused PC cards

Setting of WAKEUP status data for ACPI

HW initialization before Boot, Waiting for initialization

completion

Notifies the DVI connection status to VGA BIOS (for

models supporting DVI)

Setting of battery save mode

Setting of date

Waiting for Bluetooth initialization completion (for

models supporting Bluetooth)

Update of DMI Wakeup factor, Update of SM-BIOS

structure table

PCI device configuration space close

Cache control

Update of parameter block A

Process for CPU (Make the CPU clock to be set by

SETUP)

Waiting of motor-off completion of disabled HDD

Final decision of USB FDD drive information

Post processing of PRE_BOOT_SETUP

Clearance of PWRBTN_STS, Enabling POWER

FFh End Button

2-28 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.4 System Board Troubleshooting 2 Troubleshooting Procedures

NOTE: The printer port LED outputs the status of an item in which an error is occurred.

If the printer port LED outputs “0Ch” and then halts, it indicates memory check of first
64KB is completed and an error occurred during initialization of vector.

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

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

Check 2 If error code 0Ah is displayed, go to the following Sections:

Section 2.5 3.5” FDD Troubleshooting
Section 2.6 2.5” HDD Troubleshooting

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-29

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Procedure 3 Printer Port LED Check on Suspend/Resume Mode

The printer port LED displays the IRT status and error status by turning lights on and off as an
eight-digit binary value after turning on of the power.

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

1. Turn on the computer’s power and set it to the resume mode.

2. Turn off the computer’s power.

3. Plug the printer port LED into the parallel port (printer port).

4. Read the LED status from left to right as you face the computer.

5. Convert the status from binary to hexadecimal notation.

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

7. If the final LED status matches any of the test status values in Table 2-4, perform
Procedure 5.

2-30 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-4 Printer port LED suspend mode error status (1/3)

LED Status Test item Contents

Sets the parallel port to D0 state.

2Bh

2Ch

Forced execution of dividing (Permission of SMI for dividing)

Waiting for completion of dividing

2Dh

Clears resume/power-off status.

Release resources used for identification
of fingerprint.

Prohibition of THERMAL DUTY (to
prevent not generating of SMI).

When powering-off request from OS is
required, waiting for the completion of
dividing process because waiting in
SUSPEND of Runtime returns the
process to OS.

After prohibiting of all SMI, permits I/O
trap(EHCI) and external SMI.

Starts dividing to transmit periodically
extension command (every 25 seconds)
not to generate time-out of power-off.

When in recovery from hibernation, turn
off the power, without doing anything.

Storing and initializing of special
configuration register

(For model supporting the fingerprint
identification)

Prohibits clock control.

2Eh Powering-off during resuming Halts HC.

Prohibits forced-power-off by detection of
LB2.

Recognition of suspending for boot/
resume

Branch of resume mode (LED=2EH) or
boot mode(LED=33H)

If in password process, recovers display
information.

Starts sequence for storing display
system.

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-31

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-4 Printer port LED suspend mode error status (2/3)

LED Status Test item Contents

2Fh Resume error check in suspend mode. Checks if in IRT.

Checks if external cards are connected (If PNP OS exists, does not check.)

Execution of driver for suspend

Clearing of data for Remote Lockout

Storing of FDD register (Models supporting built-in FDD)

Storing of USB register

Halt of HC.

Storing CPU register

Permission of system area, memory cache (to work at high-speed)

Suspending of HDD

Storing KBC,SCC and MOUSE

Storing of PCI device

Storing of PIT

Starts sequence for storing display system.

Storing of PIC

Storing of DMAC

Storing of system status command port

Storing of SIO

Storing of PCMCIA card

Storing of RTC

Calculation of check sum (conventional memory)

31h Hibernation if requested.

32h

33h Suspending for boot mood

Processing of VGA –off (boot)

Suspending of HDD (boot)

Transition to S5 of Bluetooth (boot) (For models supporting Bluetooth)

34h Suspending of boot/ resume for PnP

Suspending of boot /resume for password (Stores password information into Flash ROM.)

Marks in CMOS that suspending is
completed normally for resume function.

(to LED=34H)

(Stores PnP resource information into Flash
ROM.)

35h Waiting for completion of suspending for HDD password

2-32 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-4 Printer port LED suspend mode error status (3/3)

LED Status Test item Contents

36h Prohibition of PCI arbiter

Setting of Wakeup event

Power-off of PC card

Re-setting backup current

Forced off of fan

Power LED control during suspending

Isolates built-in LAN.

Makes the power of sound off.

Makes the power of Dock off. (Models supporting Dock)

37h

Setting Speed Step to Low

38h Measure for USB over current

Checks whether off-process for resume is
needed

Model-unique processing just before
suspending

Waiting for completion of dividing for
suspending
Stops dividing of extension command for
power off.

Setting the corresponding-time of power
switch to 50ms
Setting the corresponding-time of panel
opening to 50ms

Serial interrupt control

Calculation of check sum of PnP RAM area (Not work in suspending for boot)

Acquires how to turn the power off.

Resets by EC. (when required)

Makes not to send Eject Power Off

Prohibition of all SMI

Initializing of special register in suspending

39h

Setting status of suspend completion

Prohibition of L1&L2 Power off (completion of BIOS))

command when turn the power off by the
date check of alarm power on.

Calculates the check sum of SMRAM and
stores it in SMRAM.
Calculates the checksum of system BIOS in
the IRT side.

(Checksum does not match during IRT)

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-33

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-5 Printer port LED resume mode error status (1/4)

LED Status Test item Contents

00h Refer to IRT printer LED error status.

01h Refer to IRT printer LED error status.

02h Refer to IRT printer LED error status.

03h Refer to IRT printer LED error status.

Clears flag for SMI control.

Renewal of Resume counter

1F Checks the WakeUp factors.

Rewriting of SMRAM BASE

20h

initialization before initializing

PCI bus (1)

Measuring CPU clock

Permission of SMI other than auto-off function

Control of battery discharging current (1CmA)

Dividing for measuring of IRT time

Setting to clock generator

Check of parameter block A

Initializing of CP

Updating P6 micro-code

Check of supporting Geyserville

Sets the CPU clock to High.

Setting of Graphics Aperture Size

Recovery of PIC register

Initialization of devices necessary for AC'97 control

Initializing devices necessary for

Initializing of PIT

Initializing of PIT channel 0 (Sets the interval of
timer interruption to 55ms)
Initializing of PIT channel 2 (Sets the sound
generator frequency to 664Hz)

initialization before initializing Initializing of temperature control information

PCI bus (2) Initializing of KBC

Initializing of sound

Acquires the multi-box status.

Initializing of HC , recognizing of USB devices connection and initializing the USB devices

VGA display-off and Reset control, Starts VGA
recovery.

2-34 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-5 Printer port LED resume mode error status (2/4)

LED Status Test item Contents

Control of permission/prohibition for built-in LAN

21h Initializing of PCI devices

22h Waiting for initializing of devices

Recovery of each device (1) Processing of RESUME for PnP

Tentative initialization of printer port

Serial interrupt control

Processing of RESUME for PCI

Check of the checksum of conventional
memory

Check of WakeUp factors after initializing
PCI bus

which have to be initialized before
setting HW by PnP resource

Resume error 74H

Waiting for completion of MultiBox status
check

Waiting for the completion of VGA power­down control (because the VGA
configuration can not be seen)

Recovery of FDC

Checks slots that were in ON status during
suspending ( for fingerprint identification)

Recovery of PCMCIA card

Error when an ATA card is pulled out
Resume error 7BH
Executing of dividing process of device
detection of PC card

Initializing COM

Initializing FIR

Check of HDD pack connection Resume error 72H when HDD is mounted

Start of IDE device resume sequence

23h

Recovery of user alarm setting and
cancel of alarm power-on function

(only one time)

Initializing buffer for power saving

Initializing EC and start of reading
battery information

Recovery of each device (2) Setting items to be set up

Initializing DMAC

Initializing printer mode

Recovery of display system, but not
displayed

(only when internal VGA is enabled in
suspending)

24h Processing of password for RESUME

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-35

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-5 Printer port LED resume mode error status (3/4)

LED status Test item Contents

25h Recovery of each device(3) Recovery of COM register

Recovery of DMAC register

PnP Resume processing 2

Turns the disabled HDD motor off.

26h

Recovery of USB register (not in ACPI mode)

Recovery of CPU register

Processing of SIO dummy-reading

Resetting NDP interruption

Wakeup check

Setting WAKEUP status data for ACPI

Setting battery saving mode

Waiting for completion of KBC initializing

Recovery of system, status, command and
port

Initializing HW just before booting or
waiting for the completion

(not in ACPI mode)

Notifies the device change status to the high
rank.

Notifies the DVI connection status to VGA BIOS

Setting date

Closing PCI device configuration area

Cache control

Renewal of parameter block A

Process related to CPU

Setting of CPU to SETUP designation

Waiting for motor-off of disabled HDD

Final decision of USB FDD information

Clears PWRBTN_STS.

Enables Power Button.

Waiting for the completion of Bluetooth
initializing (models supporting Bluetooth)
Renewal of Wakeup factor of DMI and SM­BIOS structure table

After process of PRE_BOOT_SETUP

Measures against USB failure at high
temperature

2-36 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-5 Printer port LED resume mode error status (4/4)

LED status Test item Contents

Recovery of PIT register

Recovery of PCI configuration register

Recovery of PIC MASK

Executing of driver for RESUME

27h Turns the power off if required during

Waiting for the completion of recovery of
VGA register

Waiting for the completion of recovery of
FDD

Hibernation.

(models supporting built-in FDD)

Checks if the power-off switch is
pressed or not during resume

(Suspends if pressed.)

processing/

Executes HOTKEY F1 when booting
in instant security

28h Clears key buffer (Not in ACPI mode)

29h Clears IRT status. (In ACPI mode)

2Ah (In ACPI mode)

Clears flag in Resume process

Acquires Wake Up Vector address.

Clears key buffer.

Renewal of date/time

ACPI mode on

Recovery of write-protected status
before.

FFh (In ACPI mode / not in ACPI mode)

Initializing printer port

Returning to the main process

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-37

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Procedure 4 Diagnostic Test Program Execution Check

Execute the following tests from the Diagnostic Test Menu. These tests check the system
board. Refer to Chapter 3, Tests and Diagnostic, 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/ LAN / Modem test

14. Wireless LAN test

If an error is detected during these tests, go to Procedure 5.

Procedure 5 Replacement Check

The system board may be damaged. Disassemble the computer following the steps described
in Chapter 4, Replacement Procedures and replace the system board with a new one.

2-38 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.5 3.5” FDD Troubleshooting 2 Troubleshooting Procedures

2

2.5 3.5” FDD Troubleshooting

This section describes how to determine if the 3.5” 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 is one option available in the Diagnostic Program.

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

Detailed operation is given in Chapter 3, Tests and Diagnostics.

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

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-39

2 Troubleshooting Procedures 2.5 3.5” FDD Troubleshooting

Procedure 2 Diagnostic Test Program Execution Check

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

Make sure the floppy disk is formatted correctly and that the write protect tab is disabled.
Floppy disk drive test error codes and their status names are listed in Table 2-6. 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

02h Address mark not found

03h Write protected

04h Record not found

06h Media replaced

08h DMA overrun error

09h DMA boundary error

10h CRC error

20h FDC error

40h Seek error

60h FDD not drive

80h Time out error (Not ready)

EEh Write buffer error

FFh Data compare error

Check 1 If the following message is displayed, disable the write protect tab on the floppy

disk by sliding the write protect tab to “write enable”. 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.

2-40 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.5 3.5” FDD Troubleshooting 2 Troubleshooting Procedures

Procedure 3 Connector Check and Replacement Check

The USB connector may be disconnected from the system board. Check visually that the
connector is connected firmly.

Check 1 Make sure the following cable and connector are firmly connected to the system

board.

システム基板

System Board

USB FDD

PJ4600

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

Check 2 The USB FDD may be defective or damaged. Replace it with a new one. If the

FDD is still not functioning properly, perform Check 3.

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

Replacement Procedures.

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-41

2 Troubleshooting Procedures 2.6 2.5” HDD Troubleshooting

2.6 2.5” HDD Troubleshooting

This section describes how to determine if the 2.5” HDD is functioning properly. Perform the
steps below starting with Procedure 1 and continuing with the other procedures as required.

Procedure 1: Partition Check

Procedure 2: Message 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 the 2.5” HDD
troubleshooting procedures are executed. Transfer the contents of the hard disk to floppy
disks or other storage drive(s). For the backup, refer to the User’s Manual.

Procedure 1 Partition Check

Insert the Toshiba MS-DOS system disk and start the computer. 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 Procedure 2.

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

FDISK menu. If drive C is listed in the Display Partition Information, go to Check

3. If drive C is not listed, return to the FDISK menu and choose the option to
create a DOS partition or a logical DOS drive on drive C. If the problem still exists,
go to Procedure 2.

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. Then go to Procedure 2.

Check 4 Remove the system disk from the FDD and reboot the computer. If the problem

still exists, go to Procedure 2. Otherwise, the 2.5” HDD is operating normally.

2-42 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.6 2.5” HDD Troubleshooting 2 Troubleshooting Procedures

Procedure 2 Message Check

When the power is turned on, the system performs the Initial Reliability Test (IRT) installed
in the BIOS ROM. When the test detects an error, an error message is displayed on the screen.

Make sure of no floppy disk in the FDD. Turn on the computer and check the message on the
screen. When an OS starts from the 2.5” HDD, go to Procedure 3. Otherwise, start with Check
1 below and perform the other checks as instructed.

Check 1 If any of the following messages appear, go to Procedure 3. If the following

messages do not appear, perform Check 2.

HDC ERROR

or

HDD #X ERROR (After 5 seconds this message will disappear.)

Check 2 If either of the following messages appears, go to Check 3. If the following

messages do not appear, perform Check 5.

Insert system disk in drive

Press any key when ready .....

or

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

Check 3 Check SETUP to see whether the Hard Disk option is set to Not used. If it is set to

Not used, choose another setting and return to Check 1. If it is not set to Not used,
go to Check 4.

Check 4 Using the SYS command of the MS-DOS, transfer the system to the 2.5” HDD. If

the system is not transferred, go to Procedure 3. Refer to the MS-DOS Manual for
detailed operation.

If the following message appears on the display, the system program has been
transferred to the HDD.

System Transferred

If an error message appears on the display, perform Check 5.

Check 5 The 2.5” HDD and the connector of the system board may be disconnected (Refer

to the steps described in Chapter 4, Replacement Procedures for disassembling.).
Insert the connectors firmly. If they are firmly connected, go to Procedure 3.

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-43

2 Troubleshooting Procedures 2.6 2.5” HDD Troubleshooting

Procedure 3 Format Check

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

Refer to the MS-DOS Manual for the operation of MS-DOS. For the format by the test
program, refer to the Chapter 3.

Check 1 Format an 2.5” HDD using MS-DOS FORMAT command. Type as FORMAT

C:/S/U.

If the 2.5” HDD can not be formatted, perform Check 2.

Check 2 Using the MS-DOS FDISK command, set the 2.5” HDD partition. If the partition

is not set, go to Check 3. If it is set, format the 2.5” HDD using MS-DOS
FORMAT command.

Check 3 Using the Diagnostic Disk, format the 2.5” HDD with a format option (physical

format). If the HDD is formatted, set the 2.5” HDD partition using MS-DOS
FDISK command.

If you cannot format the 2.5” HDD using the Tests and Diagnostic program, go to
Procedure 4.

2-44 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

2.6 2.5” 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. The
error codes and statuses are described in Table 2-7. If an error code is not displayed but the
problem still exists, go to Procedure 5.

Table 2-7 2.5” Hard disk drive error code and status

Code Status

01h Bad command

02h Address mark not found

04h Record not found

05h HDC not reset

07h Drive not initialized

08h HDC overrun error (DRQ)

09h DMA boundary error

0Ah Bad sector error

0Bh Bad track error

10h ECC error

11h ECC recover enable

20h HDC error

40h Seek error

80h Time out error

AAh Drive not ready

BBh Undefined error

CCh Write fault

E0h Status error

EEh Access time out error

DAh No HDD

FFh Data compare error

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-45

2 Troubleshooting Procedures 2.6 2.5” HDD Troubleshooting

Procedure 5 Connector Check and Replacement Check

The HDD is connected to the connector of the system board. The connecting portion may be
disconnected. Disassemble the computer following the steps described in Chapter 4,
Replacement Procedures and perform the following checks to check the connecting portion:

Check 1 Make sure the following connectors are firmly connected to the system board.

System Board

HDD

PJ1801

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

Check 2 The 2.5” HDD may be damaged. Replace it with a new one following the

instructions in Chapter 4, Replacement Procedures and check the operation. 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.

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2.7 Keyboard Troubleshooting 2 Troubleshooting Procedures

2.7 Keyboard Troubleshooting

To determine if the computer’s keyboard 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 Check 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.

Procedure 2 Connector Check and Replacement Check

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

Check 1 Make sure the keyboard cable is firmly connected to the system board.

System Board

Keyboard

PJ3200

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

Check 2 The keyboard 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.

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-47

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 Diagnostics disk. 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.

This program checks the display controller on the system board. If an error is detected, go to
Procedure 3.

Procedure 2 Connector and Cable Check

The LCD module is connected to the system board through the LCD harness. The cable may
be disconnected from the board or damaged. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures. Check that the pin of the LCD I/F connector
is not bent or broken. If the connection is loose, reconnect firmly and repeat Procedure 2. If
there is still an error, go to Procedure 3.

System Board

LCD

PJ5600

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2.8 Display Troubleshooting 2 Troubleshooting Procedures

Procedure 3 Replacement Check

The display unit has an FL inverter board, Display module, System board, LCD harness and
Display ON/OFF switch. Any of the components may be damaged. Disassemble the computer

following the steps described in Chapter 4, Replacement Procedures､ then perform the
following checks:

If characters or graphics are not displayed on the internal display, perform Check 1.

If characters are displayed on the internal display but the display is not normal, perform Check

2.

If characters are displayed on the internal display but the display is dark (the back-light does
not light), perform Check 5.

Check 1 The display ON/OFF switch may be damaged. Remove the display ON/OFF

switch and repeat Procedure 4. If there is still an error, go to Check 2.

Check 2 The LCD harness may be damaged. Replace the damaged harness with a new one

and repeat Procedure 4. If there is still an error, go to Check 3.

Check 3 The display module may be damaged. Replace it with a new one and repeat

Procedure 4. If there is still an error, go to Check 4.

Check 4 The FL inverter board may be damaged. Replace it with a new one and repeat

Procedure 4. If there is still an error, go to Check 5.

Check 5 The FL tube may be damaged. Replace it with a new one and repeat Procedure 4.

If there is still an error, go to Check 6.

Check 6 The display controller of the system board may be damaged. Replace the system

board with a new one.

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