Toshiba Portege R400 Series User manual

[CONFIDENTIAL]
Toshiba Personal Computer
PORTÉGÉ R400
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-623
First Edition

ii [CONFIDENTIAL] PORTÉGÉ R400 Maintenance Manual (960-623)
Copyright
© 2006 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual
cannot be reproduced in any form without the prior written permission of Toshiba. No patent
liability is assumed with respect to the use of the information contained herein.
Toshiba Personal Computer PORTÉGÉ R400 Maintenance Manual
First edition December 2006
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 PORTÉGÉ R400 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 is a trademark of International Business
Machines Corporation.
Intel, Intel SpeedStep, Intel Core, Celeron and Centrino are trademarks or registered
trademarks of Intel Corporation or its subsidiaries in the United States and other
countries/regions.
Windows and Microsoft are registered trademarks of Microsoft Corporation.
Photo CD is a trademark of Eastman Kodak.
Bluetooth is a trademark owned by its proprietor and used by TOSHIBA under license.
i.LINK is a trademark of Sony Corporation.

PORTÉGÉ R400 Maintenance Manual (960-623))[CONFIDENTIAL] iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer PORTÉGÉ R400.
The procedures described in this manual are intended to help service technicians isolate
faulty Field Replaceable Units (FRUs) and replace them in the field.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important information to your
attention. Each of these messages will be italicized and identified as shown below.
DANGER: “Danger” indicates the existence of a hazard that could result in death or
serious bodily injury, if the safety instruction is not observed.
WARNING: “Warning” indicates the existence of a hazard that could result in bodily
injury, if the safety instruction is not observed.
CAUTION: “Caution” indicates the existence of a hazard that could result in property
damage, if the safety instruction is not observed.
NOTE: “Note” contains general information that relates to your safe maintenance
service.
Improper repair of the computer may result in safety hazards. Toshiba requires service
technicians and authorized dealers or service providers to ensure the following safety
precautions are adhered to strictly.
Be sure to fasten screws securely with the right screwdriver. If a screw is not fully
fastened, it could come loose, creating a danger of a short circuit, which could cause
overheating, smoke or fire.
If you replace the battery pack or RTC battery, be sure to use only the same model
battery or an equivalent battery recommended by Toshiba. Installation of the wrong
battery can cause the battery to explode.

iv [CONFIDENTIAL] PORTÉGÉ R400 Maintenance Manual (960-623)
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the T PORTÉGÉ R400. system unit and
each FRU.
Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve
FRU problems.
Chapter 3 Test and Diagnostics describes how to perform test and diagnostic
operations for maintenance service.
Chapter 4 Replacement Procedures describes the removal and replacement of the
FRUs.
Appendices The appendices describe the following:
Handling the LCD module
Board layout
Pin assignments
Keyboard scan/character codes
Key layout
Wiring diagrams
BIOS rewrite procedures
EC/KBC rewrite procedures
Reliability

PORTÉGÉ R400 Maintenance Manual (960-623))[CONFIDENTIAL] 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 computer that appears on its display is presented in the type face
below:
Format complete
System transferred

vi [CONFIDENTIAL] PORTÉGÉ R400 Maintenance Manual (960-623)
Table of Contents
Chapter 1 Hardware Overview
1.1 Features......................................................................................................................1-1
1.2 1.8-inch Hard Disk Drive.........................................................................................1-12
1.3 Keyboard..................................................................................................................1-14
1.4 TFT Color Display...................................................................................................1-15
1.4.1 LCD Module............................................................................................................1-15
1.5 Power Supply...........................................................................................................1-16
1.6 Batteries ...................................................................................................................1-18
1.6.1 Main Battery ............................................................................................................1-18
1.6.2 RTC battery..............................................................................................................1-19
1.7 AC Adaptor..............................................................................................................1-20
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting.........................................................................................................2-1
2.2 Troubleshooting Flowchart........................................................................................2-3
2.3 Power Supply Troubleshooting..................................................................................2-7
2.4 System Board Troubleshooting................................................................................2-17
2.5 USB FDD Troubleshooting .....................................................................................2-33
2.6 1.8-inch HDD Troubleshooting...............................................................................2-36
2.7 Keyboard and Touch pad Troubleshooting..............................................................2-41
2.8 Display Troubleshooting..........................................................................................2-43
2.9 LAN Troubleshooting..............................................................................................2-45
2.10 Bluetooth Troubleshooting ......................................................................................2-46
2.11 Wireless LAN Troubleshooting...............................................................................2-48
2.12 3G Troubleshooting.................................................................................................2-50
2.13 Tablet Pen Troubleshooting.....................................................................................2-53
2.14 Sound Troubleshooting............................................................................................2-55
2.15 Fingerprint sensor Troubleshooting.........................................................................2-58

PORTÉGÉ R400 Maintenance Manual (960-623))[CONFIDENTIAL] vii
Chapter 3 Tests and Diagnostics
3.1 The Diagnostic Test...................................................................................................3-1
3.2 Executing the Diagnostic Test...................................................................................3-4
3.3 Setting of the hardware configuration .......................................................................3-9
3.4 Heatrun Test.............................................................................................................3-11
3.5 Subtest Names..........................................................................................................3-12
3.6 System Test..............................................................................................................3-14
3.7 Memory Test............................................................................................................3-16
3.8 Keyboard Test..........................................................................................................3-17
3.9 Display Test.............................................................................................................3-18
3.10 Floppy Disk Test......................................................................................................3-21
3.11 Printer Test...............................................................................................................3-23
3.12 Async Test ...............................................................................................................3-25
3.13 Hard Disk Test.........................................................................................................3-26
3.14 Real Timer Test........................................................................................................3-29
3.15 NDP Test..................................................................................................................3-31
3.16 Expansion Test.........................................................................................................3-32
3.17 CD-ROM/DVD-ROM Test .....................................................................................3-34
3.18 Error Code and Error Status Names.........................................................................3-35
3.19 Hard Disk Test Detail Status ...................................................................................3-38
3.20 ONLY ONE TEST...................................................................................................3-40
3.21 Head Cleaning..........................................................................................................3-48
3.22 Log Utilities.............................................................................................................3-49
3.23 Running Test............................................................................................................3-51
3.24 Floppy Disk Drive Utilities......................................................................................3-52
3.25 System Configuration ..............................................................................................3-57
3.26 Wireless LAN Test Program (Intel-made b/g, a/b/g)...............................................3-59
3.28 3D Test Program......................................................................................................3-78
3.29 Sound Test program.................................................................................................3-80
3.30 SETUP .....................................................................................................................3-86

viii [CONFIDENTIAL] PORTÉGÉ R400 Maintenance Manual (960-623)
Chapter 4 Replacement Procedures
4.1 Overview....................................................................................................................4-1
4.2 Battery pack...............................................................................................................4-8
4.3 PC card.....................................................................................................................4-10
4.4 Memory module B...................................................................................................4-11
4.5 HDD.........................................................................................................................4-13
4.6 Keyboard..................................................................................................................4-17
4.7 Memory module A...................................................................................................4-21
4.8 Cover assembly and Base assembly ........................................................................4-23
4.9 Base latch.................................................................................................................4-26
4.10 Front panel/Microphone ..........................................................................................4-27
4.11 Bluetooth module.....................................................................................................4-33
4.12 Touch pad.................................................................................................................4-35
4.13 UWB module ...........................................................................................................4-40
4.14 Wireless LAN card ..................................................................................................4-42
4.15 3G card.....................................................................................................................4-44
4.16 LAN jack..................................................................................................................4-46
4.17 MJ board ..................................................................................................................4-47
4.18 RTC battery..............................................................................................................4-50
4.19 RGB board...............................................................................................................4-51
4.20 Sensor board.............................................................................................................4-53
4.21 Fan/Heat sink...........................................................................................................4-54
4.22 PC card slot..............................................................................................................4-57
4.23 System board and LCD cover assembly..................................................................4-58
4.24 LCD mask................................................................................................................4-61
4.25 LCD unit ..................................................................................................................4-63
4.26 Digitizer ...................................................................................................................4-66
4.27 Switch board ............................................................................................................4-73
4.28 Fingerprint sensor board..........................................................................................4-74

PORTÉGÉ R400 Maintenance Manual (960-623))[CONFIDENTIAL] ix
Appendices
Appendix A Handling the LCD Module ........................................................................... A-1
Appendix B Board Layout ................................................................................................ B-1
Appendix C Pin Assignments............................................................................................ C-1
Appendix D Keyboard Scan/Character Codes .................................................................. D-1
Appendix E Key Layout.....................................................................................................E-1
Appendix F Wiring Diagrams............................................................................................F-1
Appendix G BIOS rewrite Procedures .............................................................................. G-1
Appendix H EC/KBC rewrite Procedures.........................................................................H-1
Appendix I Reliability........................................................................................................I-1

x [CONFIDENTIAL] PORTÉGÉ R400 Maintenance Manual (960-623)

[CONFIDENTIAL]
Chapter 1
Hardware Overview

1-ii [CONFIDENTIAL] PORTEGE R400 Maintenance Manual (960-623)

PORTEGE R400 Maintenance Manual (960-623) [CONFIDENTIAL] 1-iii
Chapter 1 Contents
1.1 Features.......................................................................................................................1-1
1.2 1.8-inch Hard Disk Drive.........................................................................................1-12
1.3 Keyboard ..................................................................................................................1-14
1.4 TFT Color Display ...................................................................................................1-15
1.4.1 LCD Module.......................................................................................1-15
1.5 Power Supply............................................................................................................1-16
1.6 Batteries....................................................................................................................1-18
1.6.1 Main Battery .......................................................................................1-18
1.6.2 RTC battery.........................................................................................1-19
1.7 AC Adaptor ..............................................................................................................1-20

Figures
Figure 1-1 Front of the computer.....................................................................................1-5
Figure 1-2 System unit configuration...............................................................................1-6
Figure 1-3 System unit block diagram ............................................................................1-7
Figure 1-4 1.8-inch HDD ...............................................................................................1-12
Figure 1-5 Keyboard ......................................................................................................1-14
Figure 1-6 LCD module.................................................................................................1-15
Tables
Table 1-1 1.8-inch HDD specifications........................................................................1-12
Table 1-2 LCD module specifications..........................................................................1-15
Table 1-3 Power supply output rating...........................................................................1-17
Table 1-4 Battery specifications ...................................................................................1-18
Table 1-5 Time required for charges ............................................................................1-18
Table 1-6 Data preservation time..................................................................................1-19
Table 1-7 RTC battery charging/data preservation time...............................................1-19
Table 1-8 AC adapter specifications.............................................................................1-20
1-iv [CONFIDENTIAL] PORTEGE R400 Maintenance Manual (960-623)

1 Hardware Overview
PORTEGE R400 Maintenance Manual (960-623) [CONFIDENTIAL] 1-1
1.1 Features
The Toshiba PORTÉGÉ R400 Personal Computer uses advanced Large Scale Integration
(LSI), and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to
provide compact size, minimum weight, low power usage and high reliability. This computer
incorporates the following features.
There are some models and options according to BTO system. Refer to the Parts List for the
configuration of each model and options.
Microprocessor
The PORTÉGÉ R400 computer is equipped with one of the following processors.
Intel®CoreTM Duo ULV
1.2GHz (Processor Number : U2500)
Chipset
Equipped with Intel Calistoga GM as North Bridge, Intel ICH7-M as South Bridge and
Texas Instrument PCI7412 as Card Controller.
VGA Controller
An internal Graphics Controller in North Bridge is used.
Memory
Two DDR2-533/DDR2-667 SDRAM slots. Memory modules can be installed to provide
a maximum of 4GB. Memory modules are available in 512MB( DDR2-533),
1024MB( DDR2-533) and 2048MB(DDR2-667)sizes.
HDD
The computer has a 1.8-inch PATA HDD. The following capacities are available.
•80 GB
USB FDD
A 3.5-inch USB FDD accommodates 2HD (1.44MB) or 2DD (720KB) disks.

1 Hardware Overview
1-2 [CONFIDENTIAL] PORTEGE R400 Maintenance Manual (960-623)
Display
LCD : Built-in 12.1inch, 16M colors, WXGA(1280×800dots) thin type low
temperature poly-silicon TFT color display.
External monitor : Supported via an RGB connector.
Digitizer
A digitizer is installed at the rear of LCD unit. The supplied tablet pen enables pen
computing.
Tablet pen / Reserve pen
The Tablet pen / Reserve pen can be used as a mouse by touching the display softly with
the pen tip. Tablet button on the side of the pen corresponds to the right click of the mouse.
Erase button on the pen tail can be used as an eraser depending on the application.
Keyboard
An-easy-to-use 84(US)/85(UK)-key keyboard provides a numeric keypad overlay for fast
numeric data entry or for cursor and page control. The keyboard also includes two keys
that have special functions in Microsoft®Windows VistaTM.
Touch pad
A Touch Pad and control buttons in the palm rest enable control of the on-screen pointer
and scrolling of windows.
Batteries
The computer has two batteries: a rechargeable Lithium-Ion main battery pack and RTC
battery (that backs up the Real Time Clock and CMOS memory).
Universal Serial Bus(USB2.0)
Three USB ports are provided. The ports comply with the USB2.0 standard.
External monitor (RGB) port
The port enables connection of an external monitor, which is recognized automatically by
Video Electronics Standards Association (VESA) Display Data Channel (DDC) 2B
compatible functions.

1 Hardware Overview
PORTEGE R400 Maintenance Manual (960-623) [CONFIDENTIAL] 1-3
PC card slot
A PC card slot is provided. The PC card slot (PCMCIA) accommodates one Type II card.
Fingerprint sensor
The computer is equipped with a fingerprint sensor and fingerprint authentication utility.
They enable only person who has registered his/her fingerprint to use the computer.
Sound system
The sound system is equipped with the following features:
•
•
•
•
•
speakers
Volume control
Stereo headphone jack
External microphone jack
Built-in microphone
Internal LAN
The computer has built-in support for Ethernet LAN (10 megabits per second, 10BASE-
T), Fast Ethernet LAN (100 megabits per second, 100BASE-TX) and Gigabit Ethernet
LAN (1000 megabits per second, 1000BASE-T).
Bluetooth
The computer is equipped with Bluetooth (V2.0+EDR) communications standard enable
wireless connection between electronic devices such as computers and printers. It
supports wireless communication switch.
Wireless LAN
The computer is equipped with PCI Express Mini Card type wireless LAN card that
supports 802.11 a/b/g in the PCI Express Mini Card slot. This function can be switched
on and off by a switch on the computer.
UWB
The computer is equipped with PCI Express Mini Card type UWB card

1 Hardware Overview
1-4 [CONFIDENTIAL] PORTEGE R400 Maintenance Manual (960-623)
3G
The computer is equipped with PCI Express Mini Card type 3G card
Switch/Button
The following switches and buttons are equipped.
-Power on switch
-Cross Function button
-ESC/Rotation button
-Windows-Security button
-Wireless Mail button

1 Hardware Overview
The front of the computer is shown in figure 1-1.
Figure 1-1 Front of the computer
PORTEGE R400 Maintenance Manual (960-623) [CONFIDENTIAL] 1-5

1 Hardware Overview
The system unit configuration is shown in figure 1-2.
Figure 1-2 System unit configuration
1-6 [CONFIDENTIAL] PORTEGE R400 Maintenance Manual (960-623)