Toshiba Qosmio G10 Series User manual

1
Toshiba Personal Computer
QOSMIO G10
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-497

Copyright
© 2004 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual cannot be
reproduced in any form without the prior written permission of Toshiba. No patent liability is assumed with
respect to the use of the information contained herein.
Toshiba QOSMIO G10 Maintenance Manual
First edition September 2004
Disclaimer
The information presented in this manual has been reviewed and validated for accuracy. The included set of
instructions and descriptions are accurate for the QOSMIO G10 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, Centrino and Pentium 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.
Bluetooth is a trademark owned by its proprietor and used by TOSHIBA under license.
Memory Stick is a registered trademark and i.LINK is a trademark of Sony Corporation.
Other trademarks and registered trademarks not listed above may be used in this manual.
ii QOSMIO G10 Maintenance Manual (960-497)

Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer QOSMIO G10.
NOTE: Each model of QOSMIO G10 has a different configuration. For each model’s
configuration, refer to the parts list dedicated to it.
The procedures described in this manual are intended to help service technicians isolate
faulty Field Replaceable Units (FRUs) and replace them in the field.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important information to your
attention. Each of these messages will be italicized and identified as shown below.
DANGER: “Danger” indicates the existence of a hazard that could result in death or
serious bodily injury, if the safety instruction is not observed.
WARNING: “Warning” indicates the existence of a hazard that could result in bodily
injury, if the safety instruction is not observed.
CAUTION: “Caution” indicates the existence of a hazard that could result in property
damage, if the safety instruction is not observed.
NOTE: “Note” contains general information that relates to your safe maintenance
service.
Improper repair of the computer may result in safety hazards. Toshiba requires service
technicians and authorized dealers or service providers to ensure the following safety
precautions are adhered to strictly.
Be sure to fasten screws securely with the right screwdriver. Be sure to use the PH
Point size “0” and “1” screwdrivers complying with the ISO/DIS 8764-1:1996. If a
screw is not fully fastened, it could come loose, creating a danger of a short circuit,
which could cause overheating, smoke or fire.
If you replace the battery pack or RTC battery, be sure to use only the same model
battery or an equivalent battery recommended by Toshiba. Installation of the wrong
battery can cause the battery to explode.
QOSMIO G10 Maintenance Manual (960-497) iii

The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the QOSMIO G10 system unit and each
FRU.
Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve
FRU problems.
Chapter 3 Test and Diagnostics describes how to perform test and diagnostic
operations for maintenance service.
Chapter 4 Replacement Procedures describes the removal and replacement of the
FRUs.
Appendices The appendices describe the following:
❑Handling the LCD module
❑Board layout
❑Pin assignment
❑Display codes
❑Key layout
❑Wiring diagrams
❑BIOS Rewrite procedures
❑EC/KBC Rewrite procedures
❑Reliability
iv QOSMIO G10 Maintenance Manual (960-497)

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 QOSMIO G10 that appear on its display is presented in the type face
below:
Format complete
System transferred
QOSMIO G10 Maintenance Manual (960-497) v

Table of Contents
Chapter 1 Hardware Overview
1.1 Features ...................................................................................................................... 1-1
1.2 System Block Diagram .............................................................................................. 1-5
1.3 2.5-inch Hard Disk Drive......................................................................................... 1-10
1.4 Optical Drive............................................................................................................ 1-15
1.5 Keyboard.................................................................................................................. 1-24
1.6 TFT Color Display................................................................................................... 1-25
1.7 Power Supply ........................................................................................................... 1-27
1.8 Batteries ................................................................................................................... 1-29
1.9 AC Adapter .............................................................................................................. 1-32
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 ..................................................................................... 2-37
2.6 2.5” HDD Troubleshooting...................................................................................... 2-41
2.7 Keyboard Troubleshooting ...................................................................................... 2-46
2.8 Touch pad Troubleshooting ..................................................................................... 2-48
2.9 Display Troubleshooting.......................................................................................... 2-50
2.10 Optical Disk Drive Troubleshooting........................................................................ 2-53
2.11 Modem Troubleshooting.......................................................................................... 2-54
2.12 LAN Troubleshooting.............................................................................................. 2-56
2.13 Wireless LAN Troubleshooting............................................................................... 2-57
2.14 Sound Troubleshooting............................................................................................ 2-60
2.15 TV Tuner Troubleshooting ...................................................................................... 2-62
vi QOSMIO G10 Maintenance Manual (960-497)

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........................................................................ 3-8
3.4 Heatrun Test............................................................................................................. 3-10
3.5 Subtest Names.......................................................................................................... 3-11
3.6 System Test .............................................................................................................. 3-13
3.7 Memory Test............................................................................................................ 3-15
3.8 Keyboard Test.......................................................................................................... 3-16
3.9 Display Test ............................................................................................................. 3-17
3.10 Floppy Disk Test...................................................................................................... 3-20
3.11 Printer Test............................................................................................................... 3-22
3.12 Async Test ............................................................................................................... 3-24
3.13 Hard Disk Test ......................................................................................................... 3-25
3.14 Real Timer Test........................................................................................................ 3-28
3.15 NDP Test.................................................................................................................. 3-30
3.16 Expansion Test......................................................................................................... 3-31
3.17 CD-ROM/DVD-ROM Test ..................................................................................... 3-33
3.18 Error Code and Error Status Names......................................................................... 3-34
3.19 Hard Disk Test Detail Status.................................................................................... 3-37
3.20 Only One Test .......................................................................................................... 3-39
3.21 Head Cleaning.......................................................................................................... 3-46
3.22 Log Utilities ............................................................................................................. 3-47
3.23 Running Test............................................................................................................ 3-49
3.24 Floppy Disk Drive Utilities...................................................................................... 3-50
3.25 System Configuration .............................................................................................. 3-55
3.26 Wireless LAN Test Program (Intel-made b/g)......................................................... 3-57
3.27 Wireless LAN Test Program (Intel-made a/b/g)...................................................... 3-61
3.28 Wireless LAN Test Program (Askey-made)............................................................ 3-66
3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program .................................................. 3-70
3.30 Sound Test Program................................................................................................. 3-84
3.31 SETUP ..................................................................................................................... 3-90
QOSMIO G10 Maintenance Manual (960-497) vii

Chapter 4 Replacement Procedures
4.1 Overview....................................................................................................................4-1
4.2 Battery pack ............................................................................................................... 4-8
4.3 PC card/Bridge media .............................................................................................. 4-10
4.4 HDD......................................................................................................................... 4-12
4.5 Wireless LAN card .................................................................................................. 4-16
4.6 Memory module....................................................................................................... 4-18
4.7 Keyboard.................................................................................................................. 4-20
4.8 Switch membrane..................................................................................................... 4-24
4.9 Optical disk drive..................................................................................................... 4-26
4.10 Display assembly ..................................................................................................... 4-28
4.11 Cover assembly........................................................................................................ 4-34
4.12 Bluetooth / LE board................................................................................................ 4-39
4.13 SD board / Microphone / MDC ............................................................................... 4-42
4.14 Touch pad................................................................................................................. 4-47
4.15 Hinge (cover assembly side).................................................................................... 4-49
4.16 RTC battery / BT board ........................................................................................... 4-45
4.17 CPU fan.................................................................................................................... 4-51
4.18 US board .................................................................................................................. 4-54
4.19 Speaker (R) / TJ board ............................................................................................. 4-55
4.20 System board............................................................................................................ 4-61
4.21 VGA fan................................................................................................................... 4-63
4.22 Speaker (L)............................................................................................................... 4-64
4.23 CPU.......................................................................................................................... 4-65
4.24 VGA heat sink.......................................................................................................... 4-68
4.25 TV tuner module ...................................................................................................... 4-69
4.26 PC card slot .............................................................................................................. 4-72
4.27 LCD unit / FL inverter ............................................................................................. 4-73
4.28 LCD harness............................................................................................................. 4-78
4.29 Wireless antennas..................................................................................................... 4-80
4.30 Fluorescent lamp...................................................................................................... 4-83
viii QOSMIO G10 Maintenance Manual (960-497)

Appendices
Appendix A Handling the LCD Module ........................................................................ A-1
Appendix B Board Layout ............................................................................................. B-1
Appendix C Pin Assignment .......................................................................................... C-1
Appendix D Display Codes ............................................................................................ D-1
Appendix E Key Layout..................................................................................................E-1
Appendix F Wiring Diagrams.........................................................................................F-1
Appendix G BIOS Rewite procedures............................................................................ G-1
Appendix H EC/KBC Rewrite procedures..................................................................... H-1
Appendix I Reliability.....................................................................................................I-1
QOSMIO G10 Maintenance Manual (960-497) ix

x QOSMIO G10 Maintenance Manual (960-497)

Chapter 1
Hardware Overview
QOSMIO G10 Maintenance Manual (960-497) 1-i

1 Hardware Overview
1-ii QOSMIO G10 Maintenance Manual (960-497)

Chapter 1 Contents
1.1 Features...................................................................................................................... 1-1
1.2 System Block Diagram .............................................................................................. 1-5
1.3 2.5-inch Hard Disk Drive......................................................................................... 1-10
1.4 Optical Drive............................................................................................................ 1-15
1.4.1 DVD-ROM & CD-R/RW Drive ........................................................ 1-15
1.4.2 DVD Super Multi Drive..................................................................... 1-18
1.4.3 DVD Super Multi Drive (supporting Double-Layer)......................... 1-21
1.5 Keyboard.................................................................................................................. 1-24
1.6 TFT Color Display................................................................................................... 1-25
1.6.1 LCD Module ...................................................................................... 1-25
1.6.2 FL Inverter Board............................................................................... 1-26
1.7 Power Supply........................................................................................................... 1-27
1.8 Batteries ................................................................................................................... 1-29
1.8.1 Main Battery....................................................................................... 1-29
1.8.2 Battery Charging Control ................................................................... 1-30
1.8.3 RTC battery ........................................................................................ 1-31
1.9 AC Adapter .............................................................................................................. 1-32
QOSMIO G10 Maintenance Manual (960-497) 1-iii

1-iv QOSMIO G10 Maintenance Manual (960-497)
Figures
Figure 1-1 Front of the computer and the system units configuration ............................ 1-4
Figure 1-2 System block diagram.................................................................................... 1-5
Figure 1-3 2.5-inch HDD............................................................................................... 1-10
Figure 1-4 DVD-ROM & CD-R/RW drive ................................................................... 1-15
Figure 1-5 DVD Super Muti drive................................................................................. 1-18
Figure 1-6 DVD Super Muti drive (Double-Layer) ...................................................... 1-21
Figure 1-7 Keyboard...................................................................................................... 1-24
Figure 1-8 LCD module................................................................................................. 1-25
Tables
Table 1-1 2.5-inch HDD dimensions ........................................................................... 1-10
Table 1-2 2.5-inch HDD specifications........................................................................ 1-12
Table 1-3 DVD-ROM & CD-R/RW drive outline dimensions.................................... 1-15
Table 1-4 DVD-ROM & CD-R/RW drive specifications ............................................ 1-16
Table 1-5 DVD Super Multi drive outline dimensions ................................................ 1-18
Table 1-6 DVD Super Multi drive specifications ........................................................ 1-19
Table 1-7 DVD Super Multi drive (Double-Layer) outline dimensions...................... 1-21
Table 1-8 DVD Super Multi drive (Double-Layer) specifications .............................. 1-22
Table 1-9 LCD module specifications.......................................................................... 1-25
Table 1-10 FL inverter board specifications .................................................................. 1-26
Table 1-11 Power supply output rating .......................................................................... 1-28
Table 1-12 Battery specifications................................................................................... 1-29
Table 1-13 Time required for charges of main battery .................................................. 1-30
Table 1-14 Data preservation time ................................................................................. 1-30
Table 1-15 Time required for charges of RTC battery................................................... 1-31
Table 1-16 AC adapter specifications ............................................................................ 1-32

1 Hardware Overview 1.1 Features
1 Features
1.1 Features
The QOSMIO G10 series are high performance all-in-one PCs running a Pentium-M
processor.
The features are listed below.
❑Microprocessor
Microprocessor that is used will be different of the model.
Intel ®Mobile Pentium ®-M
Pentium-M 1.50GHz (Processor Number ; 715)
1.60GHz (Processor Number ; 725)
1.70GHz (Processor Number ; 735)
1.80GHz (Processor Number ; 745)
2.00GHz (Processor Number ; 755)
2.10GHz (Processor Number ; 765)
L1 cache : 64KB (32KB + 32KB)
L2 cache : 2MB
❑Memory
Two DDR333 SO-DIMM slots. Memory modules can be installed to provide a
maximum of 2GB. Memory modules are available in 256MB, 512MB and 1024MB
sizes.
❑VRAM
nVIDIA NV36m is mounted.
❑HDD
Double (or single) 40GB, 60GB 80GB or 100GB internal drives. 2.5 inch x 9.5mm
height.
❑USB FDD
USB FDD supports 720KB and 1.44MB.
❑S/PDIF
This port can send or receive the digital sound data with the equipment like CD, MD
Player. (This port is also used for headphone I/F.)
QOSMIO G10 Maintenance Manual (960-497) 1-1

1.1 Features 1 Hardware Overview
❑Display
LCD
Built-in 17.0-inch, WXGA+ (1,440 x 900 dots), 320,000 colors, amorphous
silicon TFT color display.
CRT
Supported via a RGB connector.
TV-out
S-VIDEO OUT port supported.
D-VIDEO port supported.
❑Monitor-IN port
AV input terminal is supported (for composite cable). This port can be also used as
LINE-IN port enables connection of a stereo device for audio input.
❑TV-tuner (Mini PCI slot)
This enables to watch TV and record it. (Supporting world wide signal : NTSC, PAL
and SECAM)
According to the government regulation, it is not permitted to bring PAL/SECAM TV
tuner into Korea.
❑Remote controller
A remote controller for watching TV is equipped.
❑Keyboard
An-easy-to-use 85(US)/86(UK)-key keyboard provides a numeric keypad overlay for
fast numeric data entry or for cursor and page control. The keyboard also includes
two keys that have special functions in MicrosoftWindowsXP. It supports
software that uses a 101- or 102-key enhanced keyboard.
❑PC card slot
The PC card slot (PCMCIA) accommodates one 5mm Type II card. The slot support
16-bit PC cards and Card Bus PC cards. CardBus supports 32-bit PC cards.
1-2 QOSMIO G10 Maintenance Manual (960-497)

1 Hardware Overview 1.1 Features
❑Optical devices
A DVD-ROM & CD-R/RW drive or DVD Super Multi drive is equipped.
❑Battery
The RTC battery is equipped inside the computer.
The main battery is a detachable lithium ion battery (4,400mAh:Li-Ion, 6cell).
❑USB (Universal Serial Bus)
Four USB ports are provided. The ports comply with the USB2.0 standard, which
enables data transfer speeds 40 times faster than USB1.1 standard. USB1.1 is also
supported.
❑Bridge Media slot
One SD card/Memory stick (PRO)/xDPicture card/MultiMedia card/SDIO card slot.
Data can be read and written by inserting each media to the slot. Memory stick
Duo/PRO Duo and memory stick adapter is not supported.
❑Sound system
Harman/Kardon-made stereo speaker is equipped. An internal microphone, external
monaural microphone connector, stereo headphone connector is also equipped.
❑Wireless LAN (Mini PCI slot)
The wireless LAN is equipped on the mini PCI slot.
❑LAN/MODEM
Connectors for LAN and Modem are separately mounted.
❑IEEE1394 port
The computer has one IEEE 1394 port. It enables high-speed data transfer directly
from external devices such as digital video cameras.
❑Bluetooth
Depending on the model, the computer is equipped with a dedicated Bluetooth
module. This enables a communication to devices that support Bluetooth
Version 1.2/1.1/. Adopting AFH (Adaptive Frequency Hopping), reduce the
interference with the wireless communication in 2.4GHz. It can be switched on or off
with a switch on the computer.
QOSMIO G10 Maintenance Manual (960-497) 1-3

1.1 Features 1 Hardware Overview
Figure 1-1 shows the front of the computer and the system units configuration.
Figure 1-1 Front of the computer and the system units configuration
1-4 QOSMIO G10 Maintenance Manual (960-497)

1 Hardware Overview 1.2 System Block Diagram
1.2 System Block Diagram
Figure 1-2 shows the system block diagram.
Figure 1-2 System block diagram
QOSMIO G10 Maintenance Manual (960-497) 1-5

1.2 System Block Diagram 1 Hardware Overview
The PC contains the following components.
❑CPU
Intel ®Mobile Pentium ®-M
Pentium-M 1.50GHz (Processor Number ; 715)
1.60GHz (Processor Number ; 725)
1.70GHz (Processor Number ; 735)
1.80GHz (Processor Number ; 745)
2.00GHz (Processor Number ; 755)
2.10GHz (Processor Number ; 765)
L1 cache : 64KB (32KB + 32KB)
L2 cache : 2MB
FSB : 400MHz Core voltage : 1.340~0.748V
❑Memory
Two memory slots capable of accepting DDR-SDRAM 256MB, 512MB, or 1024MB
memory modules for a maximum of 2GB.
•200-pin small-size DIMM
•2.5V operation
•PC2100/PC2700 support
❑BIOS ROM (Flash memory)
•8Mbit (512K×16-bit chip)
−64KB used for logo/icon
−224KB used for system BIOS
−64KB used for VGA-BIOS
−60KB used for Intel PXE
−32KB used for ACPI
−16KB used for MBI
−17KB used for booting
−16KB used for Parameter Block
−19KB are reserved
1-6 QOSMIO G10 Maintenance Manual (960-497)