Toshiba portege 2000 Service Manual

1

Toshiba Personal Computer

Portege 2000

Maintenance Manual

TOSHIBA CORPORATION

File Number 960-333

Copyright

© 2002 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual cannot be
reproduced in any form without the prior written permission of Toshiba. No patent liability is assumed with
respect to the use of the information contained herein.

Toshiba Portege 2000 Maintenance Manual
First edition January 2002

Disclaimer

The information presented in this manual has been reviewed and validated for accuracy. The included set of
instructions and descriptions are accurate for the Portege 2000series at the time of this manual's production.
However, succeeding computers and manuals are subject to change without notice. Therefore, Toshiba assumes
no liability for damages incurred directly or indirectly from errors, omissions, or discrepancies between any
succeeding product and this manual.

Trademarks

IBM is a registered trademark, and IBM PC/AT, PS/2, OS/2 and VGA are registered trademarks of IBM
Corporation.
Microsoft and MS-DOS and Windows are registered trademarks of Microsoft Corporation.
Intel and Cerelon are registered trademarks, and MMX is a trademark of Intel Corporation.
Sound Blaster and Pro are registered trademarks of Creative Technology Ltd.
Super I/O and MICROWIRE are registered trademarks of National Semicon d ucto r Cor po rati o n.
All other properties are trademarks or registered trademarks of their respective holders.

ii Portege 2000 Maintenance Manual (960-3 33)

Preface

This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer Portege 2000, referred to as Portege 2000 in this manual.

The procedures described in this manual are intended to help service technicians isolate
faulty Field Replaceable Units (FRUs) and replace them in the field.

SAFETY PRECAUTIONS

Four types of messages are used in this manual to bring important information to your
attention. Each of these messages will be italicized and identified as shown below.

DANGER: “Danger” indicates the existence of a hazard that could result in death or
serious bodily injury, if the safety instruction is not observed.

WARNING: “Warning” indicates the existence of a hazard that could result in bodily
injury, if the safety instruction is not observed.

CAUTION: “Caution” indicates the existence of a hazard that could result in property
damage, if the safety instruction is not observed.

NOTE: “Note” contains general information that relates to your safe maintenance
service.

Improper repair of the computer may result in safety hazards. Toshiba requires service
technicians and authorized dealers or service providers to ensure the following safety
precautions are adhered to strictly.

 Be sure to fasten screws securely with the right screwdriver. 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.

Portege 2000 Maintenance Manual (960-333) iii

The manual is divided into the following parts:

Chapter 1 Hardware Overview describes the Portege 2000 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
❑ Keyboard scan/character codes
❑ Key layout
❑ Wiring diagrams
❑ BIOS/KBC/EC Update
❑ Reliability
❑ Key FD

iv Portege 2000 Maintenance Manual (960-3 33)

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 Portege 3410CT/3440CT that appears on its display is presented in the
type face below:

Format complete
System transferred

Portege 2000 Maintenance Manual (960-333) v

Table of Contents

Chapter 1 Hardware Overview

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

1.2 1.8-inch Hard Disk Drive...........................................................................................1-9

1.3 Keyboard..................................................................................................................1-11

1.4 TFT Color Display...................................................................................................1-12

1.5 Power Supply ...........................................................................................................1-14

1.6 Batteries....................................................................................................................1-15

1.7 AC Adapter ..............................................................................................................1-17

Chapter 2 Troubleshooting Procedures

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

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

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

2.4 Main Board Troubleshooting...................................................................................2-15

2.5 USB 3.5” FDD Troubleshooting..............................................................................2-27

2.6 1.8” HDD Troubleshooting......................................................................................2-30

2.7 Keyboard Troubleshooting.......................................................................................2-35

2.8 Display Troubleshooting..........................................................................................2-36

2.9 Touch Pad.................................................................................................................2-38

2.10 Modem .....................................................................................................................2-39

2.11 LAN..........................................................................................................................2-41

2.12 Sound........................................................................................................................2-43

2.13 SD card slot..............................................................................................................2-45

2.14 Wireless LAN Troubleshooting...............................................................................2-46

vi Portege 2000 Maintenance Manual (960-333)

Chapter 3 Tests and Diagnostics

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

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

3.3 Subtest .......................................................................................................................3-7

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

3.5 Memory Test............................................................................................................3-11

3.6 Keyboard Test..........................................................................................................3-13

3.7 Display Test..............................................................................................................3-16

3.8 USB Floppy Disk Test .............................................................................................3-19

3.9 ASYNC Test ............................................................................................................3-21

3.10 Hard Disk Test .........................................................................................................3-22

3.11 Real Timer Test........................................................................................................3-25

3.12 NDP Test..................................................................................................................3-27

3.13 Expansion Test.........................................................................................................3-28

3.14 Wireless LAN Test Program....................................................................................3-30

3.15 Sound/LAN/Modem Test.........................................................................................3-37

3.16 Error Status Code .....................................................................................................3-39

3.17 HDC Status...............................................................................................................3-41

3.18 FDD Cleaning ..........................................................................................................3-43

3.19 Log Utilities..............................................................................................................3-44

3.20 Running Test............................................................................................................3-46

3.21 Floppy Disk Drive Utilities......................................................................................3-48

3.22 System Configuration...............................................................................................3-54

Chapter 4 Replacement Procedures

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

4.2 Battery pack/PC card..................................................................................................4-8

4.3 Memory Module.......................................................................................................4-11

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

4.5 Keyboard/Bottom cover...........................................................................................4-17

4.6 Speaker/RTC battery................................................................................................4-22

Portege 2000 Maintenance Manual (960-3 33) vii

4.7 Wireless LAN board/MDC board/HDD cable.........................................................4-24

4.8 PC card slot ..............................................................................................................4-27

4.9 Main board/FAN .....................................................................................................4-28

4.10 Sound board/SW knob .............................................................................................4-31

4.11 Touch pad/MODEM jack/LED SW membrane.......................................................4-33

4.12 Power Membrane SW/Wireless LAN antenna.........................................................4-37

4.13 LCD mask/FL inverter/LCD/LCD cable..................................................................4-41

4.14 Hinge........................................................................................................................4-47

4.15 Fluorescent Lamp.....................................................................................................4-51

Appendices

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

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

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

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

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

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

Appendix G Reliability...................................................................................................G-1

Appendix H Key FD.......................................................................................................H-1

viii Portege 2000 Maintenance Manual (960-3 33)

Chapter 1
Hardware Overview

1 Hardware Overview

1 Hardware Overview

1-ii Portege 2000 Maintenance Manual (960- 3 33)

1 Hardware Overview

Chapter 1 Contents

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

1.2 1.8-inch Hard Disk Drive...........................................................................................1-9

1.3 Keyboard..................................................................................................................1-11

1.4 TFT Color Display...................................................................................................1-12

1.4.1 LCD Module.......................................................................................1-12

1.4.2 FL Inverter Board...............................................................................1-13

1.5 Power Supply ...........................................................................................................1-14

1.6 Batteries....................................................................................................................1-15

1.6.1 Main Battery.......................................................................................1-15

1.6.2 Battery Charging Control ...................................................................1-16

1.6.3 RTC battery ........................................................................................1-16

1.7 AC Adapter ..............................................................................................................1-17

Portege 2000 Maintenance Manual (960-333) 1-iii

1 Hardware Overview

Figures

Figure 1-1 Front of the computer.....................................................................................1-4

Figure 1-2 System units configuration.............................................................................1-4

Figure 1-3 System Block Diagram...................................................................................1-5

Figure 1-4 1.8-inch HDD.................................................................................................1-9

Tables

Table 1-1 1.8-inch HDD dimensions..............................................................................1-9

Table 1-2 1.8-inch HDD Specifications .......................................................................1-10

Table 1-3 LCD module specifications..........................................................................1-12

Table 1-4 FL inverter board specifications...................................................................1-13

Table 1-5 Power supply output specifications..............................................................1-14

Table 1-6 Battery specifications...................................................................................1-15

Table 1-7 Time required for charges of main battery...................................................1-16

Table 1-8 RTC battery charging/data preservation time ..............................................1-16

Table 1-9 AC adapter specifications.............................................................................1-17

1-iv Portege 2000 Maintenance Manual (960- 3 33)

1.1 Features 1 Hardware Overview

1 Features

1.1 Features

The Portage 2000 is a ultra thin and lightweight PC realizing cable-less environment on a
table by wireless function with a Pentium III processor realizing high performance.

❑ Microprocessor

Pentium III-ULV

A 750/350MHz Pentium III-ULV processor with a 750/350MHz internal clock,
100MHz bus and 1.10/0.95V core operation.

❑ Cache memory

A Pentium III has 32KB primary cache and 512KB secondary cache (in CPU)

❑ Memory

One memory slot. Memory module can be installed to provide a maximum of 512MB.
Memory modules in 256MB size is available.

❑ VRAM

16MB VRAM in ALi/Trident NAPA2T.

❑ HDD

Single 20GB internal drive. 1.8-inch, 8.0mm height

❑ USB FDD

Three-mode 3.5 inch USB FDD supporting 720KB, 1.2MB and 1.44MB formats is
prepared as option.

❑ Display

LCD
Built-in 12.1 inch, 262,144 colors, XGA (1024×768 dots), thin type low temperature

poly- silicon TFT color display. Video controller is included in North Bridge chip.
CRT
Supported via an RGB connector

Portege 2000 Maintenance Manual (960-333) 1-1

1 Hardware Overview 1.1 Features

❑ Keyboard

Keyboards has 84(US)/85(UK)-key and supports Windows key.

❑ Touch pad

Touch pad is installed as a pointing device.

❑ Battery

The RTC battery is mounted inside computer.
The main battery is a detachable lithium polymer main battery (10.8V-1,600mAh)
and the RTC battery is a lithium ion battery(3V-17mAH).

❑ USB (Universal Serial Bus)

Four USB ports supporting USB 2. Two of these are occupied and others are usable.

❑ PC card slot

A PC card Type I or II is acceptable. Supports ToPIC-100 (3.3V/CardBus).

❑ SD card slot

One SD card slot.

❑ Sound system

Incorporates an internal speaker, external monaural microphone connector and stereo
headphone connector.

❑ One touch button

Internet button and Mail button are installed.

❑ Built-in Modem

The computer contains a MDC, enabling data and fax communication. It supports
ITU-TV.90. The transfer rates are 56 Kbps for data reception, 33.6 Kbps for data
transmission, and 14,400 bps for fax transmission. However, the actual speed
depends on the line quality. The RJ11 modem jack is used to accommodate a
telephone line.

❑ LAN

The internal LAN supports 10BASE-T and 100BASE-TX.

1-2 Portege 2000 Maintenance Manual (960-333)

1.1 Features 1 Hardware Overview

❑ Wireless LAN

The internal wireless LAN supports Mini PCI Type III(802.11B) made by Agere.

❑ FIR(Fast Serial InfraRed) communication port

Fast Serial InfraRed(FIR) communication port supports IrDA1.1. 1.15Mbps or
4Mbps wireless communication is realized by this FIR.

Portege 2000 Maintenance Manual (960-333) 1-3

1 Hardware Overview 1.1 Features

d

N

k

Figure 1-1 shows the front of the computer and Figure 1-2 shows the system units
configuration.

Figure 1-1 Front of the computer

Headphone

Fan

RTC Battery

Battery

AC Adapter

Outer Microphone

Intouch

PC Car

Keyboard

Docking I/F
Speaker

etwor

SD Card
Debug Port

Figure 1-2 System units configuration

1-4 Portege 2000 Maintenance Manual (960-333)

1.1 Features 1 Hardware Overview

Figure 1-3 shows the system block diagram.

Figure 1-3 System Block Diagram

Portege 2000 Maintenance Manual (960-333) 1-5

1 Hardware Overview 1.1 Features

The PC contains the following components.

❑ CPU

Pentium III-ULV

• A 750/350MHz Pentium III processor with a 750/350MHz internal clock,

100MHz bus and 1.10V/0.95 core operation voltage (built-in NDP).

• Internal cache memory: 16KB Data and 16KB Instruction, Write-Back

• Secondary cache memory: 512KB (in CPU)

❑ Memory

One memory slot capable of accepting 256MB-memory module for a maximum of
512MB.

• 3.3V operation

• 140-pin exclusive memory board

• Access time : 6ns

• Memory Supporting PC-133(Operation is PC100)

❑ BIOS ROM (Flash memory)

• 4Mbit (256K×16-bit chip)

− 64KB used for logo

− 64KB 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

− 64KB used for LAN

− 32KB are reserved

• 5.0V operation

• Access time : 120 ns or 90 ns

• Data transfer: 8-bit

1-6 Portege 2000 Maintenance Manual (960-333)

1.1 Features 1 Hardware Overview

❑ PCI chipset

This gate array incorporates the following elements and functions

• North Bridge (Ali/Trident-made M1644T)

− Pentium II/III supported

− Maximum capacity of SDRAM or DDR-SDRAM is 3GB

− DRAM control

− Complies with AGP V2.0 x 4 modes

− Complies with PCI R2.2

− Complies with APCI 1.0b

− PCI Mobile Busy#/STOP# supported

− 555-ball 35x35mm BGA package

• South Bridge (Ali/Trident-made M1535B)

− PCI 3.3V/5V tolerance interface

− Provides Steerable PCI interrupts for PCI device Plug-and-Play

− Enhanced DMA controller

− Interrupt controller

− Counter/timers

− Distributed DMA supported

− PC/PCI DMA supported

− Serial IRQ supported

− Low Pin Count (LPC) host controller

− Plug-and-Play supported

− Built-in KB controller

− ACPI supporting features

− Built-in PCI IDE controller

− USB interface

− SMBus interface

− Super I/O interface

− Audio system

− SW modem interface

− 352-ball (27mm x 27mm) BGA package

❑ VGA controller

Included in North Bridge

❑ PC card controller (YEBISU3S)

• PCI interface (PCI Reision2)

• Chipset interface

Intel serial interrupt

• CardBus/PC Card controller (Yenta Version2.2) :2 slots

Portege 2000 Maintenance Manual (960-333) 1-7

1 Hardware Overview 1.1 Features

Parallel power supply control (Toshiba style) and serial power supply control
(Texas Instruments style)

• SD card controller (SDHC Ver.1.2)

• SDIO card controller (Ver.1.0)

• SmertMedia controller (SMHC Ver.01/SMIL 1.0)

• SmertCard interface

• SIO controller

• Docking station interface

Q switch control, reset control

• External device interface

FDD/IDE hot plugging and removal control

❑ Other main system chips

• EC/KBC (Mitsubishi-made LPC microcontroller M306K5F8LRP x 1)

• PSC (TMP87PM48U x 1)

• Temperature sensor (ADM1032 x 1)

2

PROM (BR93LC46F-Q (used for LAN MAC address))

• E

❑ Modem controller

Supported by MDC. Using of the secondary AC97 Line

❑ LAN controller (MOAB-made Intel:82550PM)

Controls LAN, supports 100Base-TX and 10Base-T.

1-8 Portege 2000 Maintenance Manual (960-333)

1.2 1.8-inch Hard Disk Drive 1 Hardware Overview

1.2 1.8-inch Hard Disk Drive

A compact, high-capacity HDD with a height of 8.0mm. Contains a 1.8-inch magnetic disk
and magnetic heads.

Figure 1-4 shows a view of the 1.8-inch HDD and Tables 1-1 and 1-2 list the specifications.

Figure 1-4 1.8-inch HDD

Table 1-1 1.8-inch HDD dimensions

Standard value

Parameter

Outline Width (mm) 54.0
dimensions Height (mm) 8.0
Depth (mm) 78.5
Weight (g) 62 (MAX)

TOSHIBA

MK2003GAH

Portege 2000 Maintenance Manual (960-333) 1-9

1 Hardware Overview 1.2 1.8-inch Hard Disk Drive

Table 1-2 1.8-inch HDD Specifications

Specification

Parameter

Storage size (formatted) 20GB
Speed (RPM) 4,200
Data transfer speed (Mbits/s) 115.6 to 204.4
Interface transfer rate (MB/s) 100
Track density

Track/mm(TPI)
Bit/mm
Access time (msec)

Track to track
Average time
Max seek

Start time (sec) 3.5 (Typ.)

TOSHIBA

MK2003GAH

2237 (56.8K) max.

24.4K(621K) max.

3
15
26

20 (Max.)

1-10 Portege 2000 Maintenance Manual (960-333)

1.3 Keyboard 1 Hardware Overview

1.3 Keyboard

The keyboard is mounted 84(US)/85(UK) keys that consist of character key and control key,
and in conformity with JIS. The keyboard is connected to membrane connector on the system
board and controlled by the keyboard controller. See Appendix E about a layout of the
keyboard.

Portege 2000 Maintenance Manual (960-333) 1-11

1 Hardware Overview 1.4 TFT Color Display

1.4 TFT Color Display

The TFT color display consists of a LCD module and FL inverter board.

1.4.1 LCD Module

The LCD module used for the TFT color display uses a backlight as the light source and can
display images and characters of 262,144 colors with 1024×768 resolution. The video
controller is incorporated into the North Bridge (M1644M) chip and can control both internal
and external XGA-support displays simultaneously.

Table 1-5 shows list the specifications.

Table 1-3 LCD module specifications (12.1 TFT)

Specifications Item

VF2095P01

Number of Dots
Dot spacing (mm) 0.24(H) x 0.24(V)
Display range (mm) 245.76(H) x 184.32(V)
Outline

dimensions

267.4(w) x 197.5(H) x 5.55Max(D)

1024×768

1-12 Portege 2000 Maintenance Manual (960-333)

1.4 TFT Color Display 1 Hardware Overview

1.4.2 FL Inverter Board

The FL inverter board supplies a high frequency current to illuminate the LCD module FL.
Table 1-4 lists the FL inverter board specifications.

Table 1-4 FL inverter board specifications

Specifications Item

UA2040P02

Input Voltage (V) DC 5
Output

Voltage (V) 750
Current MAX (mA) 4.22
Current MIN (mA) 0.412

Portege 2000 Maintenance Manual (960-333) 1-13

1 Hardware Overview 1.5 Power Supply

1.5 Power Supply

The power supply supplies ten different voltages to the system board.
The power supply microcontroller has the following functions.

1. Judges that 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 1-5 lists the power supply output specifications.

Table 1-5 Power supply output specifications

Name

PCOREV

PGTLV
B1R8V 1.8

B3V

B2R5V

P3V
B5V

VCC

Voltage

[V]

1.35±0.1V

1.50±3%

3.30±5%

2.5±5%

3.30±5%

5.00±5%

5.00±5%

Name/Use

PⅢ-ULV
PⅢ-ULV , M1644
M1644

M1644,CLKGen(ICS94258), Memory slot1/2, YEBISUSS, PCMCIA
slot1, MDC(Asky), LAN(REL8139CL)

M1644M, CLKGen(ICS94258)
CPU(ADM11032), M1535, LCD, BIOS(TC58F401FT),

RTC(bq3285LD), Sound(YMF753),Mini PCI(Wireless LAN)
M1644, PCMCIA slot1
M1535, FLINV, YEBISUSS, Sound(YMF753), HDD, CD-R/W, USB,

FAN

SNDVCC

S5V

5.00±5%

5.00±5%

Sound(MMM1517)
CPU(MAX6501), SB(M1535)

1-14 Portege 2000 Maintenance Manual (960-333)

1.6 Batteries 1 Hardware Overview

1.6 Batteries

The PC has the following two batteries.

❑ Main battery
❑ Real time clock (RTC) battery

Table 1-6 lists the specifications for these two batteries.

Table 1-6 Battery specifications

Battery Name Battery Element Output Voltage Capacity

Main battery (XM2043P02) Lithium ion 10.8V 1600mAh
Real time clock (RTC) battery Nickel hydride 3.0 V 17 mAh

1.6.1 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.

Portege 2000 Maintenance Manual (960-333) 1-15

1 Hardware Overview 1.6 Batteries

Q

A

1.6.2 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. The system charges the battery using quick charge or
trickle charge.

❑ Quick 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.
(See Table 1-7)

Table 1-7 Time required for charges of main battery

uick charge

bout 2 hours

Quick battery 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

❑ Trickle charge

When the main battery is fully charged and the AC adapter is plugged in, the power
supply microcontroller automatically switches from quick charge to trickle charge.

1.6.3 RTC Battery

The RTC battery provides the power supply to maintain the date, time, and other system
information in memory. Table 1-8 lists the battery charging time and data preservation times.

Table 1-8 RTC battery charging/data preservation time

Data preservation time (when fully charged) 1 month

1-16 Portege 2000 Maintenance Manual (960-333)

1.7 AC Adapter 1 Hardware Overview

1.7 AC Adapter

The AC adapter is also used to charge the battery.
Table 1-9 lists the AC adapter specifications.

Table 1-9 AC adapter specifications

Parameter Specification

Input voltage AC 90 to 264V
Input frequency 47Hz/63Hz
Input current(MAX) 1.2A (100VAC)
Output voltage DC 15V
Output current 3.0A

Portege 2000 Maintenance Manual (960-333) 1-17

1 Hardware Overview 1.7 AC Adapter

1-18 Portege 2000 Maintenance Manual (960-333)

Chapter 2
Troubleshooting Procedures

2 Troubleshooting Procedures

2

2-ii Portege 2000 Maintenance Manual (960-333)

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................................................................2-7

Procedure 2 Error Code Check...................................................................2-9

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

Procedure 4 Quick Charge Check ............................................................2-13

Procedure 5 Replacement Check..............................................................2-14

2.4 Main Board Troubleshooting...................................................................................2-15

Procedure 1 Message Check.....................................................................2-16

Procedure 2 Debug Port Check on Boot Mode........................................2-18

Procedure 3 Diagnostic Test Program Execution Check .........................2-26

Procedure 4 Replacement Check..............................................................2-26

2.5 USB 3.5” FDD Troubleshooting..............................................................................2-27

Procedure 1 FDD Head Cleaning Check..................................................2-27

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

Procedure 3 Connector Check and Replacement Check..........................2-29

2.6 1.8” HDD Troubleshooting......................................................................................2-30

Procedure 1 Partition Check.....................................................................2-30

Procedure 2 Message Check.....................................................................2-31

Procedure 3 Format Check.......................................................................2-32

Procedure 4 Diagnostic Test Program Execution Check .........................2-33

Procedure 5 Connector Check and Replacement Check..........................2-34

2.7 Keyboard Troubleshooting.......................................................................................2-35

Procedure 1 Diagnostic Test Program Execution Check .........................2-35

Procedure 2 Connector Check and Replacement Check..........................2-35

Portege 2000 Maintenance Manual (960-333) 2-iii

2 Troubleshooting Procedures

2.8 Display Troubleshooting..........................................................................................2-36

Procedure 1 Diagnostic Test Program Execution Check .........................2-36

Procedure 2 Connector and Cable Check.................................................2-36

Procedure 3 Fuse connection check .........................................................2-36

Procedure 4 Replacement Check..............................................................2-40

2.9 Touch Pad.................................................................................................................2-38

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

Procedure 2 Connector checking and replacement checking...................2-38

Procedure 3 Replacement Check..............................................................2-38

2.10 Modem .....................................................................................................................2-39

Procedure 1 Diagnostic Test Program Execution Check .........................2-39

Procedure 2 Connector checking and replacement checking...................2-40

2.11 LAN..........................................................................................................................2-41

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

Procedure 2 Connector checking and replacement checking...................2-42

2.12 Sound........................................................................................................................2-43

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

Procedure 2 Connector Check..................................................................2-42

Procedure 3 Replacement Check..............................................................2-44

2.13 SD card slot..............................................................................................................2-45

Procedure 1 Check on Windows ..............................................................2-54

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

2.14 Wireless LAN Troubleshooting...............................................................................2-46

Procedure 1 Trancemitting-Receiving Check ..........................................2-46

Procedure 2 Antennas’ Connection Check...............................................2-47

Procedure 3 Antenna Check.....................................................................2-48

Procedure 4 Replacement Check..............................................................2-50

2-iv Portege 2000 Maintenance Manual (960-333)

2 Troubleshooting Procedures

Figures

Figure 2-1 Troubleshooting flowchart(1/2) .....................................................................2-3

Figure 2-2 Troubleshooting flowchart(2/2) .....................................................................2-4

Figure 2-3 A set of tool for debug port test....................................................................2-18

Figure 2-4 Antenna Test jig ...........................................................................................2-48

Tables

Table 2-1 Battery icon....................................................................................................2-7

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

Table 2-3 D port status .................................................................................................2-20

Table 2-4 FDD error code and status............................................................................2-28

Table 2-5 Hard disk drive error code and status...........................................................2-33

Portege 2000 Maintenance Manual (960-333) 2-v

2 Troubleshooting Procedures

2-vi Portege 2000 Maintenance Manual (960-333)

2.1 Troubleshooting 2 Troubleshooting

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. Main Board 8. Modem

3. 3.5" USB FDD 9. LAN

4. 1.8" HDD 10. Sound

5. Keyboard 11. SD card slot

6. Display 12. Wireless LAN

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

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 FDD testing)

5. Cleaning disk kit (for FDD head cleaning)

6. A set of tools for debug port test (test cable, test board, RS-232C cross cable, display,
D port FD)

7. PC with a serial port (for displaying debug port test result)

8. Wraparound connector for PC card

9. Tester

10. External CRT

11. External USB Keyboard

12. External USB mouse

13. Headphone

14. Microphone

15. RJ-11 connector checker LED

16. LAN wraparound connector

17. Speaker with S/PDIF input terminal

Portege 2000 Maintenance Manual (960-333) 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 FRU malfunctions. Before
going through the flowchart steps, check the following:

®

 Make sure that Toshiba Windows

Toshiba operating systems can cause the computer malfunction.

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

98,2000 or XP is installed on the hard disk. Non-

2-2 Portege 2000 Maintenance Manual (960-333)

2.2 Troubleshooting Flowchart 2 Troubleshooting

START

Connect the AC adapter

to the DC IN socket.

Does the DC IN icon glow?

Yes

Does the Battery icon glow?

Perform the Power Supply

No

Troubleshooting Procedures
in section 2.3.

Perform the Power Supply

No

Troubleshooting Procedures
in section 2.3.

Yes

Turn the Power Switch on.

Perform the Power Supply

Does the DC IN icon flash when the

power is turned on?

No

Is an error message displayed?

Yes

Troubleshooting Procedures
in section 2.3.

Perform the Main Board

Yes

Troubleshooting Procedures
in section 2.4.

Is the

Yes

No

Perform the Display

No

Troubleshooting Procedures
in section 2.8.

“Toshiba” logo

message displayed?

If the “Password=” message displays,

type the password.

Perform the 1.8” HDD

Are Toshiba Windows 98,2000 or

XP being loaded?

No

Troubleshooting Procedures
in section 2.6.

Yes

1

Figure 2-1 Troubleshooting flowchart (1/2)

Portege 2000 Maintenance Manual (960-333) 2-3

2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart

A

Do typed characters

appear correctly?

Insert the diagnostic disk into USB FDD

and run the diagnostics test program.

(The reboot of the PC is needed.)

1

Yes

Perform the Keyboard

No

Troubleshooting Procedures
in section 2.7.

Do the touch pad work

correctly?

Yes

Insert the diagnostic disk into USB FDD

and run the diagnostics test program.

(The reboot of the PC is needed.)

Perform the Touch pad

No

Troubleshooting Procedures
in section 2.9.

Perform the 3.5” USB FDD

No

Is the diagnostic test loaded?

Troubleshooting Procedures
in section 2.5.

Yes

Perform each test of the diagnostic test.

Is an error

detected by any of the

diagnostic test?

No

Yes

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

System is normal.

END

Figure 2-2 Troubleshooting flowchart (2/2)

2-4 Portege 2000 Maintenance Manual (960-333)

2.2 Troubleshooting Flowchart 2 Troubleshooting

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, Expansion test,
Real timer test or Sound/LAN/modem test, perform the Main Board Troubleshooting
Procedures in Section 2.4.

2. If an error is detected on the floppy disk test, perform the USB 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.

Portege 2000 Maintenance Manual (960-333) 2-5

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 supply icon Check
Procedure 2: Error Code Check
Procedure 3: Connection Check
Procedure 4: Quick Charge Check
Procedure 5: Replacement Check

2-6 Portege 2000 Maintenance Manual (960-333)

2.3 Power Supply Troubleshooting 2 Troubleshooting

Procedure 1 Power supply icon Check

The following two icons indicate the power supply status:

 Battery icon
 DC IN icon

The power supply controller uses 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)

Flashes orange The battery level is low and the power switch is pressed on in the

Doesn’t light Any condition other than those above.

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

battery driving.

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

Doesn’t light Any condition other than those above.

Power supply malfunction

* 3

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

orange. It shows an error code.

Portege 2000 Maintenance Manual (960-333) 2-7

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

When icons are blinking, perform the following procedure.

1. Remove the battery pack and the AC adapter and cut off the power supply to the
computer by force.

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

If icon s are 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.

CAUTION: Use a recommended AC adapter (ADP-45W) only.

2-8 Portege 2000 Maintenance Manual (960-333)

2.3 Power Supply Troubleshooting 2 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 On for half second
The error code begins with LSB (Least Significant bit)
Example: Error code 11h (Error codes are given in hexadecimal format.)

On

Off
Start D0 D1 D2 D3 D4 D5 D6 D7

Re ad

1 0 0 0 1 0 0 0

Order

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 Commondock output voltage is over 16.5V.
12h Current from the DC power supply is over 4.95A.
13h Current from the DC power supply is over 0.5A when there is no lo ad.
14h Abnormal current has been sensed 0[A].

 Main Battery

Error code Meaning

20h Overvoltage is detected.
21h Main battery charge current is over 4.9 5A.
22h Main battery discharge current is ove r 0.5A whe n there is no load.
23h Main battery charge current is over 2.3 A .
24h Abnormal current has been sensed 0[A].
25h Main battery charge current is over 0.3 A .

Portege 2000 Maintenance Manual (960-333) 2-9

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

 Second Battery

Error code Meaning

30h Overvoltage is detected.
31h Main battery charge current is over 4.9 5A.
32h Main battery discharge current is ove r 0.5A whe n there is no load.
33h Main battery charge current is over 2.3 A .
34h Abnormal current has been sensed 0[A].
35h Main battery charge current is over 0.3 A .

 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 at power-on (CV support)

 E5V output

 E3V output

Error code Meaning

50h E5V voltage is over 6.0V when the computer is powered on/off.
51h E5V voltage is 4.5V or less when the computer is po wered on.
52h E5V voltage is 4.5V or less when the computer is boo ting up.
53h E5V voltage is abnormal while the computer is suspended.
54h E5V voltage is abnormal during shutdown (CV support)
55h E5V voltage is 4.5V or less at power-on (CV support)

Error code Meaning

60h E3V voltage is over 3.96V when the computer is powered on/off.
61h E3V voltage is 2.81V or less when the computer is powered on.
62h E3V voltage is 2.81V or less when the computer is booting up.
63h E3V voltage is abnormal while the computer is suspended.
64h E3V voltage is abnormal during shutdown (CV support)
65h E3V voltage is 2.81V or less at power-on (CV support)

2-10 Portege 2000 Maintenance Manual (960-333)

2.3 Power Supply Troubleshooting 2 Troubleshooting

 PPV output

Error code Meaning

70h PPV voltage is over 1.68V 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.

 PTV output

Error code Meaning

80h PTV voltage is over 1.50V when the computer is powered on/off.
81h PTV voltage is 1.00V or less when the computer is powered on.
82h PTV voltage is 1.00V or less when the computer is booting up.
83h PTV voltage is 1.00V or more when the computer is powered off.

 2R5-E2V output

Error code Meaning

 EMV output

Error code Meaning

90h 2R5-E2V voltage is over 3.00V when the computer is powered on.
91h 2R5-E2V voltage is 2.125V or less when the computer is powered on.
92h 2R5-E2V voltage is 2.125V or less when the comp uter is booting up.
93h 2R5-E2V voltage is abnormal while the com puter is suspended.

A0h EMV voltage is over 3.00V when the computer is powered on.
A1h EMV voltage is 1.53V or less when the computer is powered on.
A2h EMV voltage is 1.53V or less when the computer is booting up.
A3h EMV voltage is abnormal while the computer is suspended.

EMV voltage is over 1.53V when the computer is powered off.

Portege 2000 Maintenance Manual (960-333) 2-11

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

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

 Make sure the AC 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.

2-12 Portege 2000 Maintenance Manual (960-333)

2.3 Power Supply Troubleshooting 2 Troubleshooting

Procedure 3 Connection Check

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

AC

Power
Cord

adapter

Main

Board

Battery pack

Any of the connectors may be disconnected. Perform starting from 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 Quick Charge 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.

Portege 2000 Maintenance Manual (960-333) 2-13

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

Procedure 5 Replacement Check

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

To disassemble the computer, follow the steps described in Chapter 4.
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 main board with a new one.

2-14 Portege 2000 Maintenance Manual (960-333)

2.4 Main board Troubleshooting 2 Troubleshooting

2.4 Main board Troubleshooting

This section describes how to determine if the main 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: Debug port (D port) Check on Boot Mode
Procedure 3: Diagnostic Test Program Execution Check
Procedure 4: Replacement Check

Portege 2000 Maintenance Manual (960-333) 2-15

2 Troubleshooting Procedures 2.4 Main board Troubleshooting

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 main 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 XP/2000/98 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.
The following error message appears when data stored in RAM under the resume
function is lost because the battery has become discharged or the main board is
damaged. Go to Procedure 3.

WARNING: RESUME FAILURE.
PRESS ANY KEY TO CONTINUE.

2-16 Portege 2000 Maintenance Manual (960-333)

2.4 Main board Troubleshooting 2 Troubleshooting

If any other error message is displayed, perform Check 3.

Check 3 The IRT checks the main 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 1.8” HDD

Troubleshooting Procedures in Section 2.6.
If error message (22) or (23) is displayed, go to the 3.5” USB 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

Portege 2000 Maintenance Manual (960-333) 2-17

2 Troubleshooting Procedures 2.4 Main board Troubleshooting

Procedure 2 Debug Port Check on Boot Mode

Check the D port status by a debug port test. The tool for debug port test is shown below.

Figure 2-3 A set of tool for debug port test

The test procedures are follows;

1. Connect the debug test cable to the connector PJ325 of the main board. For
disassembling to connect the test cable, refer to Chapter 4.

2. Connect the debug port test cable and RS-232C cross-cable to the test board.

3. Connect the RS-232C cross-cable to the PC that displays the results.

Debug port test cableRS232C cross-cable

PC that displays

Test board

PJ325 Main board

4. Boot the computer in MS-DOS mode.

2-18 Portege 2000 Maintenance Manual (960-333)

2.4 Main board Troubleshooting 2 Troubleshooting

p

5. Execute GETDPORT.COM in the text menu in CPU REAL mode. (Insert the FD for
starting D port into FDD and input “FD starting drive:>dport”.)
The D port status is displayed in the following form;

F100 : 000.000382 IRT_CHK_INI\SYSI_START

D port
status

Time (second) to

rocess

Contents of process

6. When the D port status is FFFFh (normal status), go to Procedure 3

7. When the D port status falls into any status in Table 2-3, execute Check 1.

Portege 2000 Maintenance Manual (960-333) 2-19

2 Troubleshooting Procedures 2.4 Main board Troubleshooting

Table 2-3 D port status (1/6)

D port
status

F000h

F001h Initializing a KBC (1) Checking if EC/KBC firmware is to be rewritten
Initializing a KBC
Disabling network connecting
Sending command bytes
Sending scan enable command
Checking F12 key-in
F002h Checking whether BIOS rewrite

F003h Rewriting BIOS Initializing GPIO I/O space
Enabling BIOS writing
Serial interrupt control
Disabling BIOS write protection
Enabling SMBus I/O space
Enabling SMBus access
Setting up FDC port
Configuring DRAM
Enabling L1 cache memory
Clearing memory
F004h Storing key scan code
Setting up TASK_1ms_TSC
Enabling FDC interrupt

Inspection items details

Start Clearing a software reset bit
Enabling address line A20
Initializing special registers and Intel chipset
Checking a flash memory Initializing the CH0 of a PIT
Initializing flags determining whether BIOS is rewritten
Switching to protected mode
Examining the checksum of BootBlock
Examining the checksum of other data in a flash memory

Checking whether BIOS rewrite is requested

is requested

2-20 Portege 2000 Maintenance Manual (960-333)

2.4 Main board Troubleshooting 2 Troubleshooting

Table 2-3 D port status (2/6)

D port status

F005h Executing CHGBIOSA Loading CHGBIOSA.EXE and CHGFIRMA.EXE
Executing CHGBIOSA.EXE and CHGFIRMA.EXE
Transferring system BIOS handling to IRT
F100h Checking system Disabling cache memory
Initializing special reg isters
Initializing the Ch1 of a PIT
F101h Checking the size and type of DRAM

F102h Configuring cache memory
Enabling L1 cache memory
Testing CMOS for access
Checking the voltage of a CMOS backup battery
Examining the checksum of CMOS
Initializing data in CMOS (1)
Setting up IRT status

Inspection items details

Checking the size and type of
DRAM

Testing the stack area of
SMRAM

Checking and initializing
CMOS

Testing the stack area of SMRAM

F103h Checking for branch of resuming
ICH2-M Power Failure
Examining the checksum of SMRAM
Checking whether the memory configuration have been

Examining the checksum of system BIOS RAM area
Examining the checksum of PnP RAM
Conducting resuming
Disabling all SMIs
Clearing resuming status
Setting a request for a resuming error

F104h Initializing SMRAM

Checking for branch of
resuming

Copying the contents of ROM
to RAM

Storing the size of DRAM

changed

Copying system BIOS from ROM to RAM
Initializing SMRAM

Checking the factor of WakeUp
Changing SMRAM base
Enabling SMI

Portege 2000 Maintenance Manual (960-333) 2-21

2 Troubleshooting Procedures 2.4 Main board Troubleshooting

Table 2-3 D port status (3/6)

D port status

F105h Initializing a PIT and a CPU Initializing the channel 0 of a PIT
Initializing the channel 2 of a PIT

Testing the channel 1 of a PIT
Testing the channel 2 of a PIT
Measuring the clock speed of a CPU
Enabling SMIs except auto-off feature
Handling events from an EC
Performing timeshared process for time measurement of
Updating microcodes
Enabling or disabling the fu nction of processor serial
Checking whether Geyserville is supported
Switching CPU clock speed to high
F106h Initializing ACPI, KBC, VGA, Storing the size of ROM in a buffer
sound function, and PIC Reading EC version
Updating the type of flash memory
Determining what country the computer is designed to b e
Checking the default settings of CMOS

Inspection items details

Initializing ACPI table
Setting up a clock generator
AC’97 control
Initializing information of thermal control
Initializing a KBC
Turning VGA display off and controlling reset
Initializing sound function
Starting the computer multiple box status check
Initializing a PCI
Testing a PIC
Initializing self-test control status
Initializing password
F107h Initializing PCI Initializing PCI
Initializing a LAN Initializing information of LAN
Checking the factor of WakeUp

2-22 Portege 2000 Maintenance Manual (960-333)

2.4 Main board Troubleshooting 2 Troubleshooting

Table 2-3 D port status (4/6)

D port status

F108h Initializing the data in CMOS Running a task waiting for the end of INIT_PCI
Initializing PnP Initializing the data in CMOS (2)

Setting up the setup
Setting up the setup par ameters
Waiting for the end of multiple box states check
Setting up the hardware parameters based on resources
F109h Serial interrupt control Serial interrupt control
Initializing PnP hardwares Initializing PC Card Slots
Configuration Initializing SIO
Initializing FIR
Creating a work area for auto configuration
Configuration
Storing the results of VGA configuration
F10Ah Initializing drives Starting an HDD initialization sequence
Starting an FDD initialization sequence
Initializing a USB Host Controller, and recognizing a device
Generating output codes
F10Bh Checking the first 64KB of Checking the first 64KB of memory

Inspection items details

Initializing PnP

F10Ch Initializing interrupt vectors Initializing inter rupt vectors
F10Dh Initializing a NDP Initializing a NDP
F10Eh Setting up system Storing CMOS error information in SMRAM
Initializing timer
Initializing a buffer for power saving
Initializing an EC, and reading battery information
Updating system BIOS (model name, and EDID of the LCD)
F10Fh Initializing the display Initializing VGA BIOS
F110h Displaying a logo Displaying a logo on the screen
F111h Checking system memory Checking system memor y
F112h Checking an expansion Checking an expansion memory
F113h Initializing system memory Initializing system memory
F114h Initializing an expansion Initializing an expansion memory
F115h Checking DMA pages Checking DMA pages

Portege 2000 Maintenance Manual (960-333) 2-23

2 Troubleshooting Procedures 2.4 Main board Troubleshooting

Table 2-3 D port status (5/6)

D port status

F116h Checking a DMAC Checking a DMAC
F117h Setting up DMA Initializing DMA

F118h Checking a printer port Checking a printer port
F119h Checking SIO Checking a SIO port
F11Ah Checking password Waiting for the end of the FDD initialization process
Waiting for the end of the HDD initialization
Checking key-in pressed during the IRT
Loading BM
Prioritizing ATA
Initializing BM
Entering password
Canceling BM
F11Bh Checking optional I/O ROM Checking optional I/O ROM
F11Ch Final setting up prior to boot-up Storing the value of 40;00
Setting up the address of font data for resuming password
Setting up the parameters for character repeat on a USB
Getting keys pressed during the IRT

Inspection items Details

Storing shadow RAM size
Updating system resources information prior to boot-up
Renewing memory mapping data for INT15h E820h
Updating a table for DMI
Copying an ACPI table to the top of an expansion memory
Waiting for the end of writing PSC version on BIOS
Waiting for the end of serial port initialization
Canceling NMI mask
Examining the checksum of TIT
Clearing IRT running flag for runtime
Update checksum for runtime
Branching to hibernation
Initializing Bluetooth
Checking whether a CPU, an HDD or other component
Disabling a PC Card that is not being used

2-24 Portege 2000 Maintenance Manual (960-333)

2.4 Main board Troubleshooting 2 Troubleshooting

Table 2-3 D port status (6/6)

D port status

Setting up battery safe mode
Setting up date
Waiting for the end of AC-Link initialization
Waiting for the end of Bluetooth initialization
Updating DMI Wakeup factor and SM-BIOS structure table
Closing configuration space of PCI devices
Cache control
Updating parameter block A
Setting up the clock speed of the CPU to the appointed

Waiting for the motor off of a disabled HDD
Concluding FDD information
Clearing power button status
Enabling the power button
F11Dh Waiting for setting up of a

FFFFh Completion Completion of checking DPORT status

Inspection items details

value by the Setup

Waiting for setting up of a clock generator

clock generator

Check 1 If the D port status error code F11Ah is displayed, go to the 3.5” USB FDD

Troubleshooting Procedures in Section 2.5 or the 1.8” HDD Troubleshooting

Procedures in Section 2.6.
Check 2 If any other D port status error code is displayed, perform Procedure 3.
D port error statuses are following:

Error code Contents

F160h Timer CH2 error
F161h PIT error
F162h PIC #1 error
F163h PIC #2 error
F11Eh Clock generator setting error

Portege 2000 Maintenance Manual (960-333) 2-25

2 Troubleshooting Procedures 2.4 Main board Troubleshooting

Procedure 3 Diagnostic Test Program Execution Check

Execute the following tests from the Diagnostic Test Menu. These tests check the main board
and I/O unit. 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. ASYNC test

7. Hard Disk test

8. Real Timer test

9. NDP test

10. Expansion test

11. Sound/LAN/Modem test

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

Procedure 4 Replacement Check

I/O units or main board may be damaged. Replace the I/O units or disassemble the computer
following the steps described in Chapter 4 and replace the main board with a new one.

2-26 Portege 2000 Maintenance Manual (960-333)

2.5 USB 3.5” FDD Troubleshooting 2 Troubleshooting

2

2.5 USB 3.5” FDD Troubleshooting

This section describes how to determine if the USB 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 floppy disk drive of the computer, 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.

Portege 2000 Maintenance Manual (960-333) 2-27

2 Troubleshooting Procedures 2.5 USB 3.5” FDD Troubleshooting

Procedure 2 Diagnostic Test Program Execution Check

Insert the Diagnostics Disk in the FDD of the computer, 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 2-4. If any other
errors occur while executing the FDD diagnostics test, go to Check 1.

Table 2-4 FDD error code and status

Code Status

01h Bad command

02h Address mark not found

03h Write protected

04h Record not found

06h Media 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.

2-28 Portege 2000 Maintenance Manual (960-333)

2.5 USB 3.5” FDD Troubleshooting 2 Troubleshooting

Procedure 3 Connector Check and Replacement Check

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

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

board.

システム基

Main board

USB FDD

PJ4

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 main board with a new one following the steps in Chapter 4,

Replacement Procedures.

Portege 2000 Maintenance Manual (960-333) 2-29

2 Troubleshooting Procedures 2.6 1.8” HDD Troubleshooting

2.6 1.8” HDD Troubleshooting

This section describes how to determine if the 1.8” 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 1.8” hard disk will be erased when the 1.8” 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 HDD is operating normally.

2-30 Portege 2000 Maintenance Manual (960-333)

2.6 1.8” HDD Troubleshooting 2 Troubleshooting

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 1.8” 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 1.8" 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 1.8" HDD and the connector of the main 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.

Portege 2000 Maintenance Manual (960-333) 2-31

2 Troubleshooting Procedures 2.6 1.8” HDD Troubleshooting

Procedure 3 Format Check

The computer’s 1.8" HDD is formatted using the MS-DOS FORMAT program or the physical
format program of the test program. To format the 1.8" 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 the 1.8" HDD using MS-DOS FORMAT command. Type as FORMAT

C:/S/U.

If the 1.8" HDD can not be formatted, perform Check 2.

Check 2 Using the MS-DOS FDISK command, set the 1.8" HDD partition. If the partition

is not set, go to Check 3. If it is set, format the 1.8" HDD using MS-DOS

FORMAT command.

Check 3 Using the Diagnostic Disk, format the 1.8" HDD with a format option (physical

format). If the 1.8" HDD is formatted, set the 1.8" HDD partition using MS-DOS

FDISK command.

If you cannot format the 1.8" HDD using the Tests and Diagnostic program, go to

Procedure 4.

2-32 Portege 2000 Maintenance Manual (960-333)

2.6 1.8” HDD Troubleshooting 2 Troubleshooting

Procedure 4 Diagnostic Test Program Execution Check

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

If an error is detected during the HDD test, an error code and status will be displayed. The
error codes and statuses are described in Table 2-5. If an error code is not displayed but the
problem still exists, go to Procedure 5.

Table 2-5 1.8” HDD 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

Portege 2000 Maintenance Manual (960-333) 2-33

2 Troubleshooting Procedures 2.6 1.8” HDD Troubleshooting

Procedure 5 Connector Check and Replacement Check

The HDD is connected to the connector PJ3 of the main 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 connector is firmly connected to the HDD and main board.

PJ2

HD
board

PJ1

HDD

Main
board

PJ3

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

there is still an error, go to Check 2.

Check 2 The 1.8" HDD may be damaged. Replace it with a new one and check the

operation. If the problem still exists, perform Check 3.

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

instructions in Chapter 4, Replacement Procedures.

2-34 Portege 2000 Maintenance Manual (960-333)

2.7 Keyboard Troubleshooting 2 Troubleshooting

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 main 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 main board.

Keyboard

Main board

PJ445

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 main board may be damaged. Replace it with a new one following the

instructions in Chapter 4, Replacement Procedures.

Portege 2000 Maintenance Manual (960-333) 2-35

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: Fuse Conduction Check

Procedure 4: 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 main board. If an error is detected, go to
Procedure 3.

Procedure 2 Connector and Cable Check

The LCD module is connected to the main board through the LCD harness. The cable may be
disconnected from each board or damaged. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures. If the connection is loose, reconnect firmly
and repeat Procedure 2. If there is still an error, go to Procedure 3.

Procedure 3 Fuse Conduction check

Some fuses may be blown. To test the conduction of the fuse F1 and F2 near the I/F connector
(PJ34/PJ35), disassemble the computer following the steps described in Chapter 4,
Replacement Procedures. If either fuse is blown, replace the system board repeat Procedure 3.
If there is still an error, go to Procedure 4.

2-36 Portege 2000 Maintenance Manual (960-333)

2.8 Display Troubleshooting 2 Troubleshooting

Procedure 4 Replacement Check

The display unit has a FL inverter board, Display module, Main 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:

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

(2) If characters are displayed on the internal display but the display is not normal,

perform Check 2.

(3) 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 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 main board may be damaged. Replace the main board

with a new one.

Portege 2000 Maintenance Manual (960-333) 2-37

2 Troubleshooting Procedures 2.9 Touch Pad

d

2.9 Touch Pad

To determine whether the Touch Pad is faulty or not, perform the following procedures:

Procedure 1 Diagnostic Test Program Execution Check

Procedure 2 Connector checking and replacement checking

Procedure 3: Replacement Check

Procedure 1 Diagnostic Test Program Execution Check

Execute the keyboard test program, or maintenance test program, because the pointing device
test program is a component of the keyboard test program. For the operating procedure, see
Chapter 3.

If any error is detected, perform Procedure 2. The pointing device is operating normally if no
error is detected.

Procedure 2 Connector checking and replacement checking

The touch pad is connected to the main board (PJ334) with a flexible cable. This cable may
have come off the connector or the connector may have come off the main board. Disassemble
the computer and check the cable connections. See Chapter 4 for the disassembly procedure.
If the connector has come off, connect firmly and make sure the operation. If there is still an
error, go to Procedure 3.

Touch Pad

Main boar

PJ334

Procedure 3 Replacement Check

The touch pad may be damaged. Replace the touch pad.

2-38 Portege 2000 Maintenance Manual (960-333)

2.10 Modem 2 Troubleshooting

2.10 Modem

To check if the modem is defective or malfunctioning, follow the troubleshooting procedures
below 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 Modem test program available as part of the maintenance test program. This
program checks the modem. See Chapter 3 for information on how to perform the test.

If any error is detected by the test, go to Procedure 2.

Portege 2000 Maintenance Manual (960-333) 2-39

2 Troubleshooting Procedures 2.10 Modem

Procedure 2 Connector Check and Replacement Check

The Modem jack is connected to the MDC board and MDC board is connected to the main
board. If the modem malfunctions, these connections may be bad or the MDC or main board
might be faulty.

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

Check 1 Make sure the MDC has been firmly connected to the PJ3 on the HD board. And

make sure the PJ1 on the HD board has been firmly connected to the PJ3 on the

Main board

MDC

HD board

PJ3

PJ1

Main board

PJ3

If any connector is disconnected, connect it firmly and return to Procedure 1. If
there is still an error, perform Check 2.

Check 2 The Modem jack may be faulty. Replace it with a new one. If the modem function

is still not working properly, perform Check 3.

Check 3 The MDC may be faulty. Replace it with a new one following the steps in Chapter

4. If the modem function is still not working properly, perform Check 4.

Check 4 The main board may be faulty. Replace it with a new one following the

instructions in Chapter 4.

2-40 Portege 2000 Maintenance Manual (960-333)

2.11 LAN 2 Troubleshooting

2.11 LAN

To check if the computer’s LAN is defective or malfunctioning, follow the troubleshooting
procedures below as instructed.

Procedure 1 Diagnostic Test Program Execution Check

Procedure 2 Connector Check and Replacement Check

Procedure 1 Diagnostic Test Program Execution Check

To check the LAN function, execute the Modem test program subtest 03 (LAN loop-back test).
See Chapter 3 for information on how to perform the test.

If any error is detected by the test, go to Procedure 2.

Portege 2000 Maintenance Manual (960-333) 2-41

2 Troubleshooting Procedures 2.11 LAN

N

Procedure 2 Connector Check and Replacement Check

The LAN function is installed on the main board. The modem/LAN jack is connected to the
main board by the cable. If the LAN malfunctions, the connection is bad or the main board
might be faulty.

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

Check 1 Check if the LAN jack is connected firmly to the connector PJ352 of the main

board.

Main board

etwork

PJ352

If it is loose or disconnected, connect it firmly and return to Procedure 1. If there is
still an error, perform Check 2

Check 2 The LAN jack may be defective. Replace the LAN jack with a new one. If the

problem persist, perform Check 3.

Check 3 The main board may be faulty. Replace the Main board following the steps

described in Chapter 4.

2-42 Portege 2000 Maintenance Manual (960-333)

2.12 Sound 2 Troubleshooting

2.12 Sound

To check if the sound function is defective or malfunctioning, follow the troubleshooting
procedures below as instructed.

Procedure 1 Diagnostic Test Program Execution Check

Procedure 2 Connector Check

Procedure 2 Replacement Check

Procedure 1 Diagnostic Test Program Execution Check

Execute the Sound test program available as part of the maintenance test program. See
Chapter 3 for information on how to perform the test.

If any error is detected by the test, go to Procedure 2

Procedure 2 Connector Check

The speakers are connected to the main board shown in the following figure.

Speaker

Main board
PJ10 PJ9

FL board

PJ500 PJ501

PJ997

SC board

PJ999

PJ998

Headphone

External Microphone

These connecters may have come off. Disassemble the computer and check the connector
connections.

Execute Chapter 1 if the speaker is not working properly.

Go to Check 2 if the external Microphone terminal and the Headphone are not working
properly.

Check 1 If the speaker is not working properly, the speaker cable may come off. Make sure

the speaker cables are connected to the Main board PJ10 firmly. If there is still an
error, perform Check 3

Check 2 If external Microphone terminal and the Headphone are not working properly, the

cable between the Main board and SC board, or the Main board and FL board may
come off. Or the cable between the SC board and the Microphone terminal or the
SC board and the Headphone may come off. Make sure those cables are connected
firmly. If there is still an error, perform Check 3.

Portege 2000 Maintenance Manual (960-333) 2-43

2 Troubleshooting Procedures 2.12 Sound

Procedure 3 Replacement Check

Check 1 If the speaker is not working properly, the speaker may be faulty. Replace it with a

new one following the steps in Chapter 4. If the speaker is still not working

properly, go to Check 2.

Check 2 The main board may be faulty. Replace it with a new one following the

instructions in Chapter 4.

Check 3 The external Microphone terminal and the Headphone are not working properly,

the Main board, the FL board or the SC board may be faulty. Replace those boards

with new ones following the steps in Chapter 4.

2-44 Portege 2000 Maintenance Manual (960-333)

2.13 SD card slot 2 Troubleshooting

2.13 SD card slot

To check if the SD card/Smart Media slot is good or no good, follow the troubleshooting
procedures below as instructed.

Procedure 1 Check on Windows

Procedure 2 Connector/Replacement Check

Procedure 1 Check on Windows

Insert a SD card into the slot. Check if the installed Windows XP recognizes automatically the
SD card and the data in the SD card can be read.

If the card is nor recognized or data are not read, go to Procedure 2.

Procedure 2 Connector/Replacement Check

The SD card is connected to the connector PJ364 of the main board.

SD card

Check 1 Check the SD card is firmly inserted to the connector PJ364 of the main board. If

not, insert it firmly. If the SD card is still not functioning properly, perform Check

2.

Check 2 The SD card may be faulty. Replace it with a new one in order. If the problem

persists, perform Check 3.

Check 3 The main board may be faulty. Replace it with a new one.

Main board

PJ364

Portege 2000 Maintenance Manual (960-333) 2-45

2 Troubleshooting Procedures 2.14 Wireless LAN Troubleshooting

2.14 Wireless LAN Troubleshooting

To check if the Wireless LAN is good or no good, follow the troubleshooting procedures
below as instructed.

Procedure 1: Transmitting-Receiving Check

Procedure 2: Antennas' Connection Check

Procedure 3: Antennas' Capability Check

Procedure 4: Replacement Check

Procedure 1 Transmitting-Receiving Check

Make sure the wireless communication switch on the computer is turned ON. If it is not, turn
ON.

Check 1 Execute test program CERT201T.EXE to check the transmitting-receiving function

of the wireless LAN. You will need a second computer that can communicate by

the wireless LAN

If the computer passes the test, the function is correctly working.

If the computer does not pass the test, perform Procedure 2.

2-46 Portege 2000 Maintenance Manual (960-333)

2.14 Wireless LAN Troubleshooting 2 Troubleshooting

Procedure 2 Antennas' Connection Check

The wireless LAN function wiring diagram is shown below:

Right Antenna

Wireless LAN
board

Main board

PJ100 PJ9

SC board
(Switch)

PJ999

Left Antenna

Antenna Cable

Cable

Any of the connections may be disconnected. Disassemble the computer following the steps
described in Chapter 4, perform the following checks:

Check 1 Make sure the connection between the Wireless board and the Main board (the

Main board connecter PJ100).

If the connecter is disconnected, connect firmly then return to Procedure 1. If there

is still an error, go to Check 2.

Check 2 Make sure the wireless LAN antennas (black and white) are firmly connected to

the Wireless board. If the antennas are disconnected, connect firmly then return to

Procedure 1. If there is still an error , go to Check 3.

Check 3 Make sure the connection between the SC board PJ999 and the Main board PJ9.

If the cable is disconnected, connect firmly then return to Procedure 1. If there is

still an error, perform Procedure 3.

Portege 2000 Maintenance Manual (960-333) 2-47

2 Troubleshooting Procedures 2.14 Wireless LAN Troubleshooting

Procedure 3 Antenna Check

Use an antenna test cable to check the antennas' connection. Follow the steps below.

Any of the connections may be disconnected. Disassemble the computer following the steps
described in Chapter 4, perform the following checks

1. Remove the wireless LAN slot cover and lift it off. Refer to Chapter 4 for
detailed procedure.

2. Disconnect the wireless LAN antenna (white and black) from the wireless LAN
board.

3. Connect the tester set up for impedance measurement to the antenna jig.
Measure the white antenna’s resistance

4. Determine the resistance. The antenna passes the test when the resistance is
less than 5Ω. If it is more than 5Ω, the antenna is faulty.

5. Measure the black antenna’s resistance. Check if there is faulty.

Figure 2-4 Antenna Test jig

Measurement Value Pass/fail Comment

Less than 5Ω

More than 5Ω

Pass Include cable loss

Fail The digital tester shows 0L ,etc. if there is a broken wire.

NOTE: 1. The resistances determined with the steps above may not be stable according

to the length of the antenna. The impedance of the antenna itself is about 0.5-

0.8

Ω

.

2. The above steps cannot accurately determine the impedance of the antenna.

Use an LC meter for a precise measure of impedance.

2-48 Portege 2000 Maintenance Manual (960-333)

2.14 Wireless LAN Troubleshooting 2 Troubleshooting

If each wireless antenna pass the above test, return the Wireless LAN module back, then
perform Procedure 1.

If the wireless LAN has still an error, go to Procedure 4.

Portege 2000 Maintenance Manual (960-333) 2-49

2 Troubleshooting Procedures 2.14 Wireless LAN Troubleshooting

Procedure 4 Replacement Check

Check if the wireless LAN board, the SC board and the Main board are connected properly.
Any of these components may be damaged. Disassemble the computer following the steps
described in Chapter 4 and replace the board with a new one.

Check 1 The wireless LAN board may be defective or damaged. Disassemble the computer

following the steps described in Chapter 4 and replace the board with a new one. If
there is still an error go to Check 2.

Check 2 The SC board may be defective or damaged. Disassemble the computer following

the steps described in Chapter 4 and replace the board with a new one. If there is
still an error go to Check 3.

Check 3 The Main board may be defective or damaged. Disassemble the computer

following the steps described in Chapter 4 and replace the board with a new one.

2-50 Portege 2000 Maintenance Manual (960-333)

Chapter 3
Tests and Diagnostics

3 Tests and Diagnostics

3

3-ii Portege 2000 Maintenance Manual (960-333)

3 Tests and Diagnostics

Chapter 3 Contents

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

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

3.3 Subtest .......................................................................................................................3-7

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

3.5 Memory Test............................................................................................................3-11

3.6 Keyboard Test..........................................................................................................3-13

3.7 Display Test..............................................................................................................3-16

3.8 USB Floppy Disk Test .............................................................................................3-19

3.9 ASYNC Test ............................................................................................................3-21

3.10 Hard Disk Test .........................................................................................................3-22

3.11 Real Timer Test........................................................................................................3-25

3.12 NDP Test..................................................................................................................3-27

3.13 Expansion Test.........................................................................................................3-28

3.14 Wireless LAN Test Program....................................................................................3-30

3.15 Sound/LAN/Modem Test.........................................................................................3-37

3.16 Error Status Code.....................................................................................................3-39

3.17 HDC Status...............................................................................................................3-41

3.18 FDD Cleaning ..........................................................................................................3-43

3.18.1 Function Description ..........................................................................3-43

3.18.2 Operations...........................................................................................3-43

3.19 Log Utilities..............................................................................................................3-44

3.19.1 Function Description ..........................................................................3-44

3.19.2 Operations...........................................................................................3-45

Portege 2000 Maintenance Manual (960-333) 3-iii

3 Tests and Diagnostics

3.20 Running Test............................................................................................................3-46

3.20.1 Function Description ..........................................................................3-46

3.20.2 Operations...........................................................................................3-46

3.21 Floppy Disk Drive Utilities......................................................................................3-48

3.21.1 Function Description ..........................................................................3-48

3.21.2 Operations...........................................................................................3-48

3.22 System Configuration...............................................................................................3-54

3.22.1 Function Description ..........................................................................3-54

3.22.2 Operations...........................................................................................3-55

Tables

Table 3-1 Subtest names ......................................................................................................3-7

Table 3-2 Error status codes names....................................................................................3-39

Table 3-3 Hard disk controller status register contents......................................................3-41

Table 3-4 Error register contents........................................................................................3-42

3-iv Portege 2000 Maintenance Manual (960-333)

3.1 The Diagnostic Test 3 Tests and Diagnostics

3 Tests and Diagnostics

3.1 The Diagnostic Test

This chapter explains how to use the Diagnostic Test program to test the functions of the
computer’s hardware modules. They are grouped into the Service Program Modules and the
Test Program Modules and the Diagnostic Test consists of 10 programs.

NOTE: To start the diagnostics, follow these steps:

1. Check all cables for loose connections.

2. Exit any application and close Windows.

The DIAGNOSTIC MENU consists of the following 6 test programs.

 DIAGNOSTIC TEST
 HEAD CLEANING
 LOG UTILITIES
 RUNNING TEST
 FDD UTILITIES
 SYSTEM CONFIGURATION

The DIAGNOSTIC TEST MENU contains the following 10 functional tests:

 SYSTEM TEST
 MEMORY TEST
 KEYBOARD TEST
 DISPLAY TEST
 FLOPPY DISK TEST
 ASYNC TEST
 HARD DISK TEST
 REAL TIMER TEST
 NDP TEST
 EXPANSION TEST

Portege 2000 Maintenance Manual (960-333) 3-1

3 Tests and Diagnostics 3.1 The Diagnostic Test

You will need the following equipment to perform some of the Diagnostic test programs.

 The Diagnostics Disk (all tests, 3 disks)
 A formatted working disk (Floppy disk test)
 A cleaning kit to clean the floppy disk drive heads (FDD Head Cleaning)
 A PC card wraparound connector (Expansion test)
 An external CRT monitor (Expansion test)
 Headphone (Sound/LAN/Modem test)
 A microphone (Sound/LAN/Modem test)
 FAT-MODE inspection device (Sound/LAN/Modem test)

The following sections detail the tests of the DIAGNOSTIC TEST MENU. Refer to Sections

3.17 through 3.21 for detailed information on the remaining Service Program Module
functions.

3-2 Portege 2000 Maintenance Manual (960-333)

3.2 Executing the Diagnostic TestExecuting the Diagnostic Test 3 Tests and Diagnostics

3.2 Executing the Diagnostic Test

To start the DIAGNOSTIC PROGRAM, follow these steps:

1. Insert the test program disk (No.1) in the floppy disk drive.

2. Turn on the computer by pressing the F12 key and, select the FDD in the display for
selecting booting unit. Then press ENTER. The following menu will appear:

TOSHIBA personal computer XXXX DIAGNOSTICS
version X.XX (c) copyright TOSHIBA Corp. 20XX

DIAGNOSTICS MENU :
1 - DIAGNOSTIC TEST

2–
3­4 - HEAD CLEANING
5 - LOG UTILITIES
6 - RUNNING TEST
7 - FDD UTILITIES
8 - SYSTEM CONFIGURATION
9 - EXIT TO MS-DOS

NOTE: To exit the DIAGNOSTIC TEST MENU, press the [Esc] key. If a test program is
in progress, press[ Ctrl] + [Break] to exit the test program. If a test program is in
progress, press [Ctrl] + [C] to stop the test program.

Portege 2000 Maintenance Manual (960-333) 3-3

3 Tests and Diagnostics 3.2 Executing the Diagnostic Test

3. Set the highlight bar to 1, and press Enter. The following TEST MENU will appear:

TOSHIBA personal computer XXXX DIAGNOSTICS
Version X.XX (c) copyright TOSHIBA Corp. 20XX
DIAGNOSTIC TEST MENU :

1 - SYSTEM TEST
2 - MEMORY TEST
3 - KEYBOARD TEST
4 - DISPLAY TEST
5 - FLOPPY DISK TEST
6­7 – ASYNC test
8 - HARD DISK TEST

9 - REAL TIMER TEST
10 - NDP TEST
11 - EXPANSION TEST
12 ­13 –
14 –
88 - ERROR RETRY COUNT SET [FDD & HDD]
99 - EXIT TO DIAGNOSTICS MENU

Functions 1 through 14 are the Diagnostic Tests. Function 88 sets the floppy disk
drive and hard disk drive error retry count (0-255).

Return to the Diagnostics Menu, set the highlight bar to Function 99 and press Enter.

3-4 Portege 2000 Maintenance Manual (960-333)

3.2 Executing the Diagnostic TestExecuting the Diagnostic Test 3 Tests and Diagnostics

4. Select the option you want to execute on the test menu and press Enter. When you

select 1- SYSTEM TEST, the following message will appear:

TEST NAME XXXXXXX XXXX DIAGNOSTIC TEST VX.XX

[Ctrl]+[Break] ; test end
[Ctrl]+[C] ; key stop

SUB-TEST : XX
PASS COUNT: XXXXX ERROR COUNT: XXXXX
WRITE DATA: XX READ DATA : XX
ADDRESS : XXXXXX STATUS : XXX

SUB-TEST MENU :
01 - ROM checksum

02 ­03 ­04 – Fan ON/OFF
05 ­06 - Quick charge
07 - DMI read
08 - DMI write
99 - Exit to DIAGNOSTIC TEST MENU

NOTE: The menu displayed by your computer may be slightly different from the one
shown above.

5. Select the desired subtest number from the subtest menu and press Enter. The

following message will appear:

TEST LOOP : YES (or NO)
ERROR STOP : YES (or NO)

Use the right and left arrow keys to move the cursor to the desired option.
Selecting YES of TEST LOOP increases the pass counter by one, each time the test

cycle ends and restarts the test cycle.
Selecting NO of TEST LOOP returns the process to the subtest menu after the test is

complete.

Portege 2000 Maintenance Manual (960-333) 3-5

3 Tests and Diagnostics 3.2 Executing the Diagnostic Test

Use the up and down arrow keys to move the cursor to “ERROR STOP”.
Use the right and left arrow keys to move the cursor to the desired option and press
Enter.

Selecting YES of ERROR STOP stops the test program when an error is found and
displays the operation guide on the right side of the display screen as shown below:

ERROR STATUS NAME [[ HALT OPERATION ]]

1: Test end
2: Continue
3: Retry

Press [1] Terminates the test program and returns to the subtest menu.
Press [2] Continues the test.
Press [3] Restarts the test from the error.

Selecting NO of ERROR STOP keeps the test running even if an error is found.
When an error occurred, the error status is displayed and the error counter is
increased by one.

6. Table 3-1 in section 3.3 describes the function of each test on the subtest menu. Table
3-2 in section 3.15 describes the error codes and error status for each error.

3-6 Portege 2000 Maintenance Manual (960-333)

3.3 SubtestSubtest 3 Tests and Diagnostics

3.3 Subtest

Table 3-1 lists the subtest names for each test program in the DIAGNOSTIC TEST MENU.

Table 3-1 Subtest names (1/2)

No. Test Name Subtest No. Subtest Name

1 SYSTEM 01

04
06
07
08

2 MEMORY 01

02
04
05
06

3 KEYBOARD 01

02
04
05
07
08

4 DISPLAY 01

02
03
04
05
06
07
08

ROM checksum
Fan ON/OFF
Quick charge
DMI read
DMI write
Conventional memory
Protected mode
Cache memory
L2 Cache memory
Stress

Pressed key display
Pressed key code display
Pointing Stick
USB test
Intouch key
Internet key

VRAM read/write for VGA
Gradation for VGA
Gradation for LCD
Gradation & Mode test for VGA
All dot on/off for LCD
“H” pattern display
LCD Brightness
CRT shadow

5 FLOPPY DISK 01

02
03
04
05

Portege 2000 Maintenance Manual (960-333) 3-7

Sequential read
Sequential read/write
Random address/data
Write specified address
Read specified address

3 Tests and Diagnostics 3.3 Subtest

Table 3-1 Subtest names (2/2)

No. Test Name Subtest No. Subtest Name

7 ASYNC 06 FIR/SIR point to point (send)
8 HARD DISK 01

02
03
04
06
07
09
10

9 REAL TIMER 01

02

03
10 NDP 01 NDP test
11 EXPANSION 01

03

SOUND/MO

DEM/
LAN

01

02

03

04

Sequential read
Address uniqueness
Random address/data
Cross talk & peak shift
Write specified address
Read specified address
Sequential write
W-R-C specified address

Real time
Backup memory
Real time carry

PCMCIA wraparound
RGB monitor ID
Microphone recording & play
DOREMI
LAN
MODEM

3-8 Portege 2000 Maintenance Manual (960-333)

3.4 System TestSystem Test 3 Tests and Diagnostics

3.4 System Test

To execute the System Test, select 1-SYSTEM TEST from the DIAGNOSTIC TEST
MENU, press Enter and follow the directions on the screen. The System test contains five
subtests. Move the highlight bar to the subtest you want to execute and press Enter.

Subtest 01 ROM Checksum

This subtest executes a checksum test of the BIOS ROM (range: F0000h to
FFFFFh, 64KB) on the System Board.

Subtest 04 Fan On/Off

This subtest turns on/off the fan motor by force with Fan ON/OFF commands.
The following message will appear. Make sure the rotation of the fan stops

and press Enter.

*** Fan OFF ***: Press [Enter] key?

The following message will appear. Make sure the rotation of the fan starts
and press Enter.

*** Fan ON ***: Press [Enter] key?

Subtest 06 Quick charge

This subtest checks the status for the quick charge.

Subtest 07 DMI read

The information in the Flash-ROM is displayed in the following format.

Model Name : DyanBook SS S4/275PNH
Version Number : XAS4275PNH
Serial Number : Y1055826

Press [Enter] to EXIT

To exit this subtest and return to the SYSTEM test menu, press Enter.

Subtest 08 DMI write

The following messages appear in order. Input each information. (If you do
not replace the PCB, the DMI information should not be changed.)

Portege 2000 Maintenance Manual (960-333) 3-9

3 Tests and Diagnostics 3.4 System Test

1. “Enter Model Name ?”

Input the computer’s name and press Enter. (e.g. DynaBook Satellite)

2. “Enter Version Number ?”

Input the computer’s version number and press Enter. (e.g.
XP341C401A86)

3. “Enter Serial Number ?”

Input the computer’s serial number and press Enter. (e.g. Z9012374)

4. “Enter Model Number ?”

Input the computer’s sales model number and press Enter. (e.g.
XP341C401A86)

5. “Enter Bundle Number ?”

Input the computer’s PCN/bundle number and press Enter. (e.g.
PCN0482TOZ01/S2A0281D990)

6. When you press Enter, the DMI information is written to the Flash-ROM.

3-10 Portege 2000 Maintenance Manual (960-333)