Toshiba Satellite P775 User manual

Toshiba Personal Computer
Satellite P770/P775 Series
Maintenance Manual
TOSHIBA CORPORATION
[CONFIDENTIAL]

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] ii
Copyright
© 2011 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 Satellite P770/P775 Series Maintenance Manual
First edition March. 2011
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 Satellite Series 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 OS/2 and PS/2 are trademarks of IBM Corporation.
Microsoft, MS-DOS, Windows, DirectSound and DirectMusic are registered trademarks of
Microsoft Corporation.
Intel and Pentium are registered trademarks, and SpeedStep is a trademark of Intel Corporation.
Sound Blaster is a registered trademark of Creative Technology Ltd.
Centronics is a registered trademark of Centronics Data Computer Corporation.
Photo CD is a trademark of Eastman Kodak.
All other properties are trademarks or registered trademarks of their respective holders.

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the Toshiba
Personal Computer Satellite, referred to as the Satellite 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.

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] iv
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the Satellite Series 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

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] v
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

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] vi
Table of Contents
Chapter 1 Hardware Overview
1.1Features................................................................................................................................1
1.22.5-inch HDD/SSD..............................................................................................................9 
1.3DVD Super Multi Drive (±R Double Layer).....................................................................11
1.4BD-Rewriter and BD-Combo Drives ................................................................................12
1.5Power Supply.....................................................................................................................13
1.6Batteries.............................................................................................................................15
1.6.1Main Battery........................................................................................................15
1.6.2Battery Charging Control....................................................................................15
1.6.3RTC Battery........................................................................................................16
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting Introduction............................................................................................ 3
2.2 Troubleshooting Flowchart ……………………………………………………………4
2.3 Power Supply Troubleshooting ……………………………………………………….9
2.4 Display Troubleshooting ...................................................................................................14
2.5 Keyboard Troubleshooting............................................................................................... 17
2.6 External USB Devices Troubleshooting............................................................................19
2.7 TV-tuner Troubleshooting.................................................................................................21
2.8 TouchPad Troubleshooting................................................................................................23
2.9 Speaker Troubleshooting...................................................................................................25
2.10 Optical drive troubleshooting............................................................................................27
2.11 Wireless LAN Troubleshooting.........................................................................................30
2.12 Camera Troubleshooting…………………………………………… ……………….32
2.13 Bluetooth Troubleshooting…………………...…………………………….……….. 34
2.14 Bridge Media slot Troubleshooting……………………………………………..……36
2.15 HDD/SSD Troubleshooting……………………………………………..……………38

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] vii
2.16 CRT failure Troubleshooting ……………………………………………………….. 40
2.17 HDMI CEC Troubleshooting ………………………………………………………...42
2.18 MIC Troubleshooting ………………………………………………………………. 44
2.19 USB3.0 Troubleshooting …………………………………...………..…………….46
2.20 3D sensor troubleshooting process …………………………………………………..48
2.21 Sleep & charge Troubleshooting……………………………………………………..50
2.22 CIR Troubleshooting…………………………………………………………………52
2.23 Sleep & Play music Troubleshooting……………………………………………...…54
2.24 Wimax Troubleshooting………………………………………………………………56
2.25 LAN Troubleshooting………………………………………………...………………58
2.26 JET Troubleshooting……………………………………………………………...…..60
2.27 Ambient Light sensor Troubleshooting ……………….…………...………………62
2.28 Battery Troubleshooting………………………………………………..………...…..64
2.29 LED Troubleshooting ……………….……………………...……...………………66
Figures
Figure 2-1 Troubleshooting flowchart (2/1) ………………………………………………5
Figure 2-1 Troubleshooting flowchart (2/2) ………………………………………………6
Figure2-2 Power Supply Troubleshooting Process …………………………………..…..9
Figure 2-3 Display troubleshooting process ……………………………………………..14
Figure 2-4 Keyboard troubleshooting process...................................................................17
Figure 2-5 External USB device troubleshooting process.................................................19
Figure 2-6 TV-tuner troubleshooting process ...................................................................21
Figure 2-7 TouchPad troubleshooting process..................................................................23
Figure 2-8 Speaker troubleshooting process .....................................................................25
Figure 2-9 Optical drive troubleshooting process .............................................................27
Figure 2-10 Wireless LAN troubleshooting process…………………………………...…30
Figure 2-11 Camera Troubleshooting process…………………………………………….32
Figure 2-12 Bluetooth troubleshooting process ....……………………………….……….34
Figure 2-13 5 in 1 card troubleshooting process……………………………..…….………36
Figure 2-14 HDD troubleshooting process……………………………….………………..38
Figure 2-15 CRT failure troubleshooting process ………………………………………...40
Figure 2-16 HDMI CEC troubleshooting process ………………………………………...42

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] viii
Figure 2-17 MIC troubleshooting process ………………………………………………...44
Figure 2-18 USB3.0 Troubleshooting process………………………….………………....46
Figure 2-19 3D sensor troubleshooting process ………………..…………………………48
Figure 2-20 Sleep & Charge Troubleshooting…………….………….……….…..…...….50
Figure 2-21 CIR troubleshooting process …………….………...…………………………52
Figure 2-22 Sleep and Play music troubleshooting process ………………………………54
Figure 2-23 Wimax Troubleshooting process.…………….………….……….…..…...….56
Figure 2-24 LAN troubleshooting process …………………….…………………………..58
Figure 2-25 JET Troubleshooting process………………….………….……….…..…....…60
Figure 2-26 Ambient Light Sensor troubleshooting process………………………….........62
Figure 2-27 Battery troubleshooting process………………….………….………...…....…64
Figure 2-28 LED troubleshooting process…………………………………………….........66
Chapter 3 Tests and Diagnostics
3.1 The Diagnostic Test...............................................................................................................2
3.2 Executing the Diagnostic Test...............................................................................................3
3.3 Display Configuration ...........................................................................................................6
3.4 Audio sound Test...................................................................................................................7
3.5 Fan ON/OFF Test ................................................................................................................10
3.6 Main Battery Charge Test....................................................................................................12
3.7 FDD Test..............................................................................................................................14
3.8 Memory Check ....................................................................................................................15
3.9 Keyboard Test......................................................................................................................18
3.10 Mouse (Pad) Test.................................................................................................................20
3.11 LCD Pixels Mode Test ........................................................................................................21
3.12 Magnetic switch Test...........................................................................................................22
3.13 LAN Test .............................................................................................................................23
3.14 RTC Test..............................................................................................................................25
3.15 BUTTON Test……..…………...………….…….……………..………...……...............26
3.16 1st HDDTest ……………………………....…………….……….…....….………..........28
3.17 2nd HDDTest………………………………………………………………………………30

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] ix
3.18 RDMI Test………………...………………………….……………………..…….….......32
3.19 WDMI Test …………….…………………………….…………….…....…..….…….....33
3.20 G Sensor Test ……………………………………………………………….……….........35
3.21 TP TYPE R/W Test………………………………………………….…….……..…..…...39
3.22 EEPROM Setting ………………………..………………………..……….………..…...42
3.23 TOSHIBA LOGO Setting………………………………………………………….....…...46
3.24 DYNABOOK LOGO Setting...........................................................................................48
3.25 LED Test..........................................................................................................................50
Chapter 4 Replacement Procedures
4.1General................................................................................................................................ 1
Safety Precautions............................................................................................................... 2
Before You Begin................................................................................................................ 4
Disassembly Procedures...................................................................................................... 5
Assembly Procedures.......................................................................................................... 5
Tools and Equipment .......................................................................................................... 6
Screw Tightening Torque.................................................................................................... 6
Colors of Screw Shanks ...................................................................................................... 7
Symbols of Screws on the Laptop Body............................................................................. 7
Symbol examples ................................................................................................................ 7
4.2Battery................................................................................................................................. 8
Removing the Battery Pack................................................................................................. 8
Installing the Battery Pack.................................................................................................. 9
4.3HDD.................................................................................................................................. 10
Removing the HDD........................................................................................................... 10
Installing the HDD............................................................................................................ 12
4.42nd HDD (Depending on the model)................................................................................ 15
Removing the 2nd HDD.................................................................................................... 15
Installing the 2nd HDD..................................................................................................... 16

Satellite P770/P775 Series Maintenance Manual [CONFIDENTIAL] x
4.5Memory..............................................................................................................................17
Removing the Optional Memory .......................................................................................17
Installing the Optional Memory.........................................................................................18
4.6ODD...................................................................................................................................19
Removing the ODD............................................................................................................19
Installing the ODD.............................................................................................................19
Disassembling the ODD.....................................................................................................20
Assembling the ODD Drive...............................................................................................20
4.7TV Card .............................................................................................................................21
Removing the TV Card......................................................................................................21
Installing the TV Card........................................................................................................21
4.8Keyboard............................................................................................................................22
Removing the Keyboard ....................................................................................................22
Installing the Keyboard......................................................................................................24
4.9WLAN Card.......................................................................................................................25
Removing the WLAN Card................................................................................................25
Installing the WLAN Card.................................................................................................26
4.10Logic Upper Assembly......................................................................................................27
Removing the Logic Upper Assembly...............................................................................27
Installing the Logic Upper Assembly ................................................................................29
4.11Speakers.............................................................................................................................30
Removing the Speakers......................................................................................................30
Installing the Speakers .......................................................................................................30
4.12Touchpad on/off & Light bar.............................................................................................31
Removing the Touchpad on/off & Light bar......................................................................31
Installing the Touchpad on/off & Light bar.......................................................................31
4.13Touchpad Button Board 32
Removing the Touchpad Button Board..............................................................................32
Installing the Touchpad Button Board...............................................................................32
4.14ODD Board........................................................................................................................33
Removing the ODD Board.................................................................................................33
Installing the ODD switch board .......................................................................................33