Toshiba Portege 2000 User manual

1
Toshiba Personal Computer
Portege 2000
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-333

ii Portege 2000 Maintenance Manual (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 Semiconductor Corporation.
All other properties are trademarks or registered trademarks of their respective holders.

Portege 2000 Maintenance Manual (960-333) iii
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.

iv Portege 2000 Maintenance Manual (960-333)
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

Portege 2000 Maintenance Manual (960-333) v
Conventions
This manual uses the following formats to describe, identify, and highlight terms and
operating procedures.
Acronyms
On the first appearance and whenever necessary for clarification acronyms are enclosed in
parentheses following their definition. For example:
Read Only Memory (ROM)
Keys
Keys are used in the text to describe many operations. The key top symbol as it appears on
the keyboard is printed in boldface type.
Key operation
Some operations require you to simultaneously use two or more keys. We identify such
operations by the key top symbols separated by a plus (+) sign. For example, Ctrl + Pause
(Break) means you must hold down Ctrl and at the same time press Pause (Break). If
three keys are used, hold down the first two and at the same time press the third.
User input
Text that you are instructed to type in is shown in the boldface type below:
DISKCOPY A: B:
The display
Text generated by the Portege 3410CT/3440CT that appears on its display is presented in the
type face below:
Format complete
System transferred

vi Portege 2000 Maintenance Manual (960-333)
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

Portege 2000 Maintenance Manual (960-333) vii
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

viii Portege 2000 Maintenance Manual (960-333)
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

Chapter 1
Hardware Overview

1Hardware Overview
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1 Hardware Overview

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

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

1.1 Features 1 Hardware Overview
Portege 2000 Maintenance Manual (960-333) 1-1
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

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❑ 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.

1.1 Features 1 Hardware Overview
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❑ 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.

1 Hardware Overview 1.1 Features
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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
Figure 1-2 System units configuration
Headphone
Outer Microphone
Fan
RTC Battery
Battery
AC Adapter
Intouch PC Car
d
Keyboar
d
Pad
Debug Port
SD Card
N
etwor
k
Speaker
Docking I/F

1.1 Features 1 Hardware Overview
Portege 2000 Maintenance Manual (960-333) 1-5
Figure 1-3 shows the system block diagram.
Figure 1-3 System Block Diagram

1 Hardware Overview 1.1 Features
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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

1.1 Features 1 Hardware Overview
Portege 2000 Maintenance Manual (960-333) 1-7
❑ 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

1 Hardware Overview 1.1 Features
1-8 Portege 2000 Maintenance Manual (960-333)
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)
• E2PROM (BR93LC46F-Q (used for LAN MAC address))
❑ 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.