Toshiba Qosmio F50 Series User manual

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Toshiba Personal Computer
QosmioF50
Maintenance Manual
TOSHIBA CORPORATION

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Copyright
© 2008 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 Qosmio  Maintenance Manual
First edition June. 2008
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 TOSHIBA Qosmio  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® CoreTM, Celeron and Centrino are trademarks
or registered trademarks of Intel Corporation.
Windows, Microsoft and Windows Vista® are registered trademarks of
Microsoft Corporation.
Photo CD is a trademark of Eastman Kodak.
Bluetooth is a trademark or registered 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.
DVD MovieFactory is a registered trademarks of Ulead Systems, Inc.
Labelflash is a trademark of YAMAHA CORPORATION.
Manufactured under license from Dolby Laboratories.
Dolby and the double-D symbol are trademarks of Dolby Laboratories.
Dolby Home Theater is a trademark of Dolby Laboratories.
PalmCheck and TouchPad are trademarks of Synaptics Incorporated.
ExpressCard is a trademark of PCMCIA.
ConfigFree is a trademark of Toshiba Corporation.
Wi-Fi is a registered trademark of the Wi-Fi Alliance.
Secure Digital and SD are trademarks of SD Card Association.
MultiMediaCard and MMC are trademarks of MultiMediaCard Association.
xD-Picture Card is a trademark of FUJIFILM Corporation.
Other trademarks and registered trademarks not listed above may be used
in this manual.

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Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer Qosmio 0, referred to as the Qosmio 0 Series 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. 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.

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The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the Qosmio 0 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
Screw torque list
Reliability
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

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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 typeface below:
Format complete
System transferred

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Table of Contents
Chapter 1 Hardware Overview
1.1 Features..............................................................................Error! Bookmark not defined.
1.2 2.5-inch HDD ....................................................................Error! Bookmark not defined.
1.3 DVD Super Multi (+-R Double Layer)..............................Error! Bookmark not defined.
1.4 Power Supply.....................................................................Error! Bookmark not defined.
1.5 Batteries .............................................................................Error! Bookmark not defined.
1.5.1 Main Battery.......................................................Error! Bookmark not defined.
1.5.2 Battery Charging Control .................................... Error! Bookmark not defined.
1.5.3 RTC Battery ........................................................Error! Bookmark not defined.
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting Introduction ........................................ Error! Bookmark not defined.
2.2 Troubleshooting Flowchart
……………………………………………………………

Error! Bookmark not
defined.
2.3 Power Supply Troubleshooting .......................................Error! Bookmark not defined.
2.4 Display Troubleshooting............................................... Error! Bookmark not defined.
2.5 Keyboard Troubleshooting ........................................... Error! Bookmark not defined.
2.6 External USB Devices Troubleshooting....................... Error! Bookmark not defined.
2.7 TV-tuner Failure Troubleshooting................................ Error! Bookmark not defined.
2.8 TouchPad Troubleshooting........................................... Error! Bookmark not defined.
2.9 Speaker Troubleshooting .............................................. Error! Bookmark not defined.
2.10 Optical drive troubleshooting ....................................... Error! Bookmark not defined.
2. Modem Troubleshooting …………………………………………………………….

Error! Bookmark not defined.

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2.12 Express card Troubleshooting.......................................Error! Bookmark not defined.
2.13 IEEE 1394 Troubleshooting..........................................Error! Bookmark not defined.
2.14 Wireless LAN Troubleshooting ....................................Error! Bookmark not defined.
2.15 Camera troubleshooting ................................................Error! Bookmark not defined.
2.16 Bluetooth Troubleshooting…………………...…………………………….………..
Error! Bookmark not defined.
2.17 7 in 1 card
Troubleshooting……………………………………………………..……Error!
Bookmark not defined.
2.18 HDD Troubleshooting………………………………………………………………..
Error! Bookmark not defined.
2.19 CRT failure Troubleshooting
……………………………………………………….

Error! Bookmark not defined.
2.20 HDMI Troubleshooting ……………………………………………………………...
Error! Bookmark not defined.
2.21 SPDIF Troubleshooting ………….………………………………………………….
Error! Bookmark not defined.
2.22 MIC Troubleshooting ……………………………………………………………….
Error! Bookmark not defined.
2.23 Finger Troubleshooting ……………………………………………………………..
Error! Bookmark not defined.
2.24 FM tuner Troubleshooting …………………………………………………………..
Error! Bookmark not defined.
2.25 E-SATA Troubleshooting ………………………………………….………………..
Error! Bookmark not defined.
2.26 Felica Troubleshooting ………………………….…………………………………..
Error! Bookmark not defined.
2.27 TMA Troubleshooting …………………………….………….……………………..
Error! Bookmark not defined.

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2.28 UWB Troubleshooting ………..……………………………………………………..
Error! Bookmark not defined.
2.29 IR-blaster Troubleshooting ………..…………………………………………….…..
Error! Bookmark not defined.
2.30 GPS Troubleshooting ………………………………………………………………..
Error! Bookmark not defined.
Chapter 3 Tests and Diagnostics
3.1 The Diagnostic Test .........................................................Error! Bookmark not defined.
3.2 Executing the Diagnostic Test .........................................Error! Bookmark not defined.
3.3 Display Configuration .................................................. Error! Bookmark not defined.
3.4 Beep sound Test...............................................................Error! Bookmark not defined.
3.5 Fan ON/OFF Test ......................................................... Error! Bookmark not defined.
3.6 Main Battery Charge Test ..............................................Error! Bookmark not defined.11
3.7 FDD Test ................... …Error! Bookmark not defined.Error! Bookmark not defined.
3.8 Computrace Check.........................................................Error! Bookmark not defined.14
3.9 Keyboard Test................ Error! Bookmark not defined.Error! Bookmark not defined.
3.10 Mouse (Pad) Test...........................................................Error! Bookmark not defined.17
3.11 LCD Pixels Mode Test ..................................................Error! Bookmark not defined.18
3.12 Magnetic switch Test .....................................................Error! Bookmark not defined.19
3.13 LAN Test .......................................................................Error! Bookmark not defined.21
3.14 RTC Test........................................................................Error! Bookmark not defined.24
3.15 Read 1394 GUID ...........................................................Error! Bookmark not defined.25
3.16 Speaker EQ
Check…………...………….…….……………..……………...…….......Error!
Bookmark not defined.26
3.17 Button
Test…………..……………………….………….……………….….….……

Erro
r! Bookmark not defined.26
3.18 HDCP Key Check..........................................................Error! Bookmark not defined.27

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3.19 Memory
check ...….. ……………….………………………..…………………….....Error! Bookmark
not defined.29
3.20 1st HDD
Test ……………………………....…………….……………....….………

Error! Bookmark
not defined.30
3.21 2nd HDD
Test ……………………………....…………….……………....….………

Error! Bookmark
not defined.32
3.22 RDMI
Test ……………...………………………….………………...…..……………Error! Bookmark
not defined.35
3.23 WDMI Test …………….…………………………….…………….…....….…………36
3.24 Memory R/W Test .…….…………………………….…………….…....….…………38
Chapter 4 Replacement Procedures
4.1 General .............................................................................. Error! Bookmark not defined.
Safety Precautions ..........................................................

Error! Bookmark not defined.
Before You Begin .............................................................. Error! Bookmark not defined.
Disassembly Procedures .................................................... Error! Bookmark not defined.
Assembly Procedures......................................................... Error! Bookmark not defined.
Tools and Equipment......................................................... Error! Bookmark not defined.
Screw Tightening Torque .................................................. Error! Bookmark not defined.
Colors of Screw Shanks..................................................... Error! Bookmark not defined.
Symbols of Screws on the Computer Body....................... Error! Bookmark not defined.
Symbol examples............................................................... Error! Bookmark not defined.
4.2 Battery ............................................................................... Error! Bookmark not defined.
Removing the Battery Pack ............................................... Error! Bookmark not defined.
Installing the Battery Pack ................................................. Error! Bookmark not defined.
4.3 HDD .................................................................................. Error! Bookmark not defined.
Removing the HDD ........................................................... Error! Bookmark not defined.
Installing the HDD............................................................. Error! Bookmark not defined.
4.4 Memory ............................................................................. Error! Bookmark not defined.

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Removing the Optional Memory .......................................Error! Bookmark not defined.
Installing the Optional Memory ......................................... Error! Bookmark not defined.
4.5 Express Card......................................................................Error! Bookmark not defined.
Removing the Optional Express Card or PC Card.............Error! Bookmark not defined.
Installing the Optional Express Card or PC Card ..............Error! Bookmark not defined.
4.6 Optional Memory Card......................................................Error! Bookmark not defined.
Removing the Optional Memory Card...............................Error! Bookmark not defined.
Installing the Optional Memory Card ................................Error! Bookmark not defined.
4.7 Keyboard Cover and Keyboard..........................................Error! Bookmark not defined.
Removing the Keyboard Cover and Keyboard ..................Error! Bookmark not defined.
Installing the keyboard Cover and Keyboard.....................Error! Bookmark not defined.
4.8 ODD...................................................................................Error! Bookmark not defined.
Removing the ODD Bay Module.......................................Error! Bookmark not defined.
Installing the ODD Bay Module ........................................Error! Bookmark not defined.
Disassembling the ODD Drive...........................................Error! Bookmark not defined.
Assembling the ODD Drive ...............................................Error! Bookmark not defined.
4.9 Top Cover ..........................................................................Error! Bookmark not defined.
Removing the Top Cover...................................................Error! Bookmark not defined.
Installing the Top Cover.....................................................Error! Bookmark not defined.
4.10 Display Assembly .............................................................. Error! Bookmark not defined.
Removing the Display Assembly.......................................Error! Bookmark not defined.
Installing the Display Assembly.........................................Error! Bookmark not defined.
4.11 Modem/FM Card & Mini Cards ........................................Error! Bookmark not defined.
Removing the Modem/FM card and Mini cards ................ Error! Bookmark not defined.
Installing the Modem/FM Card & Mini Cards ..................Error! Bookmark not defined.
4.12 Speakers.............................................................................Error! Bookmark not defined.
Removing the Speakers......................................................Error! Bookmark not defined.
Installing the Speakers .......................................................Error! Bookmark not defined.
4.13 Touch Pad and Finger Print Board ....................................Error! Bookmark not defined.
Removing the Touch Pad and Finger Print Board .............Error! Bookmark not defined.
Installing the Touch Pad and Finger Print Board...............Error! Bookmark not defined.