Toshiba Satellite User manual

Toshiba Personal Computer
Satellite
Maintenance Manual
TOSHIBA CORPORATION

Satellite L550/ProL550 Series Maintenance Manual
Copyright
© 2009 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 Maintenance Manual
First edition May. 2009
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 L550/ProL550 Series Maintenance Manual 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 L550/ProL550 Series Maintenance Manual
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 L550/ProL550 Series Maintenance Manual 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 L550/ProL550 Series Maintenance Manual
Table of Contents
Chapter 1 Hardware Overview
1.1 Features .............................................................................................................................. 1-1
1.2 2.5-inch HDD ..................................................................................................................... 1-9
1.3 DVD Super Multi (+-R Double Layer) ............................................................................ 1-10
1.4 Power Supply.................................................................................................................... 1-11
1.5 Batteries............................................................................................................................ 1-13
1.5.1 Main Battery....................................................................................................... 1-13
1.5.2 Battery Charging Control ................................................................................... 1-13
1.5.3 RTC Battery ....................................................................................................... 1-14
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 TouchPad Troubleshooting ..................................................................................................22
2.8 Speaker Troubleshooting......................................................................................................24
2.9 Wireless LAN Troubleshooting ...........................................................................................26
2.10 Camera troubleshooting .........................…………………………………………………..28
2.11 Bluetooth Troubleshooting...................................................................................................30
2.12 3 in 1 card Troubleshooting..................................................................................................32
2-13 HDD/SSD troubleshooting process......................................................................................34
2-14 CRT failure troubleshooting process....................................................................................36
2-15 LAN Troubleshooting ..........................................................................................................38
2-16 MIC troubleshooting process ...............................................................................................40

Satellite L550/ProL550 Series Maintenance Manual vii
2-17 BUTTON troubleshooting process.......................................................................................41
2.18 Modem troubleshooting process...........................................................................................44
2.19 Express card troubleshooting process ..................................................................................46
2.20 HDMI troubleshooting process ............................................................................................48
2.21 E-SATA troubleshooting process.........................................................................................50
2.22 Optical Drive Troubleshooting.............................................................................................52
Chapter 3 Tests and Diagnostics
3.1 The Diagnostic Test................................................................................................................3
3.2 Executing the Diagnostic Test................................................................................................4
3.3 Display Configuration ...........................................................................................................8
3.4 Audio sound Test....................................................................................................................9
3.5 Fan ON/OFF Test ...................................................................................................................9
3.6 Main Battery Charge Test.....................................................................................................11
3.7 FDD Test ..........................................................................................................................…11
3.8 Memory Check .....................................................................................................................14
3.9 Keyboard Test.......................................................................................................................14
3.10 Mouse (Pad) Test..................................................................................................................16
3.11 LCD Pixels Mode Test .........................................................................................................17
3.12 Magnetic switch Test............................................................................................................18
3.13 LAN Test ..............................................................................................................................20
3.14 RTC Test ..............................................................................................................................23
3.15 BUTTON Test ......................................................................................................................24
3.16 1st HDDTest.........................................................................................................................26
3.17 RDMI Test............................................................................................................................27
3.18 WDMI Test...........................................................................................................................28

Satellite L550/ProL550 Series Maintenance Manual
Chapter 4 Replacement Procedures
4.1 General ............................................................................................................................... 4-1
Safety Precautions .............................................................................................................. 4-2
Before You Begin............................................................................................................... 4-4
Disassembly Procedures..................................................................................................... 4-5
Assembly Procedures ......................................................................................................... 4-5
Tools and Equipment.......................................................................................................... 4-6
Screw Tightening Torque ................................................................................................... 4-6
Colors of Screw Shanks ..................................................................................................... 4-7
Symbols of Screws on the Laptop Body............................................................................. 4-7
Symbol examples ............................................................................................................... 4-7
4.2 Battery ................................................................................................................................ 4-8
Removing the Battery Pack ................................................................................................ 4-8
Installing the Battery Pack.................................................................................................. 4-9
4.3 HDD ................................................................................................................................. 4-10
Removing the HDD.......................................................................................................... 4-10
Installing the HDD ........................................................................................................... 4-11
4.4 Memory .................................................................................................................................. 4-12
Removing the Optional Memory...................................................................................... 4-12
Installing the Optional Memory ....................................................................................... 4-13
4.5 ODD ................................................................................................................................. 4-14
Removing the ODD Bay Module ..................................................................................... 4-14
Installing the ODD Bay Module....................................................................................... 4-15
Disassembling the ODD Drive......................................................................................... 4-15
Assembling the ODD Drive ............................................................................................. 4-16
4.6 Keyboard Cover and Keyboard ........................................................................................ 4-17
Removing the Keyboard Cover and Keyboard................................................................. 4-17
Installing the Keyboard Cover and Keyboard .................................................................. 4-19
4.7 Logic Upper Assembly..................................................................................................... 4-20
Removing the Logic Upper Assembly ............................................................................. 4-20
Installing the Logic Upper Assembly............................................................................... 4-22

Satellite L550/ProL550 Series Maintenance Manual ix
4.8 Function Board ................................................................................................................. 4-23
Removing the Function Board.......................................................................................... 4-23
Installing the function board............................................................................................. 4-23
4.9 Bluetooth Card ....................................................................................................................... 4-24
Removing the Bluetooth card........................................................................................... 4-24
Installing the Bluetooth card............................................................................................. 4-25
4.10 Touch Pad Button Board and Bracket .............................................................................. 4-26
Removing the Touch pad button board and bracket......................................................... 4-26
Installing the Touch Pad Button Board and Bracket ........................................................ 4-27
4.11 Speakers............................................................................................................................ 4-28
Removing the Speakers .................................................................................................... 4-28
Installing the the Speakers................................................................................................ 4-28
4.12 Display Assembly............................................................................................................. 4-29
Removing the Display Assembly ..................................................................................... 4-29
Installing the Display Assembly....................................................................................... 4-30
4.13 Thermal Fan...................................................................................................................... 4-31
Removing the Thermal Fan .............................................................................................. 4-31
Installing the Thermal Fan................................................................................................ 4-31
4.14 Motherboard ..................................................................................................................... 4-32
Removing the Motherboard.............................................................................................. 4-32
Installing the Motherboard ............................................................................................... 4-34
4.15 USB Board........................................................................................................................ 4-36
Removing the USB Board ................................................................................................ 4-36
Installing the USB Board.................................................................................................. 4-36
4.16 ODD Board....................................................................................................................... 4-37
Removing the ODD Board ............................................................................................... 4-37
Installing the ODD Board................................................................................................. 4-37
4.17 Thermal Moduleand VGA Board (Optional) ................................................................... 4-38
Removing Removing the Thermal Module and VGA Board........................................... 4-38
Installing the VGA Board and Thermal Module .............................................................. 4-39
4.18 CPU .................................................................................................................................. 4-41
Removing the CPU........................................................................................................... 4-41

Satellite L550/ProL550 Series Maintenance Manual
Installing the CPU ............................................................................................................ 4-42
4.19 WLAN Card ..................................................................................................................... 4-43
Removing the WLAN Card.............................................................................................. 4-43
Installing the WLAN Card ............................................................................................... 4-43
4.20 Modem Card (Optional) ................................................................................................... 4-44
Removing the Modem Card ............................................................................................. 4-44
Installing the Modem Card............................................................................................... 4-44
4.21 LCD Bezel Assembly ....................................................................................................... 4-45
Removing the LCD Bezel Assembly................................................................................ 4-45
Installing the LCD Bezel .................................................................................................. 4-47
4.22 LCD Module..................................................................................................................... 4-50
Removing the LCD Module ............................................................................................. 4-50
Installing the LCD Module............................................................................................... 4-53
4.23 CMOS Board and Microphone (Optional) ....................................................................... 4-53
Removing the CMOS Board and Microphone ................................................................. 4-53
Installing the CMOS Board and Microphone................................................................... 4-53
Figures
Figure 4.1 Removing the Battery Pack....................................................................................4-8
Figure 4.2 Removing the HDD door .....................................................................................4-10
Figure 4.3 Removing the HDD plate.....................................................................................4-11
Figure 4.4 Removing the RAM door.....................................................................................4-12
Figure 4.5 Removing the RAM from the laptop ...................................................................4-13
Figure 4.6 Removing the ODD Bay module .........................................................................4-14
Figure 4.7 Removing the bracket from the ODD drive .........................................................4-15
Figure 4.8 Removing the keyboard cover..............................................................................4-17
Figure 4.9 Removing screws and releasing hooks from the keyboard ..................................4-18
Figure 4.10 Removing the keyboard........................................................................................4-19
Figure 4.11 Removing the screws from the bottom of the laptop ...........................................4-20
Figure 4.12 Removing six screws from under the keyboard. ..................................................4-21
Figure 4.13 Detaching cables from under the keyboardp ........................................................4-22

Satellite L550/ProL550 Series Maintenance Manual xi
Figure 4.14 Removing the function board ...............................................................................4-23
Figure 4.15 Removing the Bluetooth card...............................................................................4-24
Figure 4.16 Removing the screws from the touch pad button board.......................................4-26
Figure 4.17 Removing the touch pad bracket..........................................................................4-27
Figure 4.18 Removing the speakers.........................................................................................4-28
Figure 4.19 Removing the display assembly ...........................................................................4-29
Figure 4.20 Removing the hinge brackets ...............................................................................4-30
Figure 4.21 Removing the thermal fan from the logic lower assembly...................................4-31
Figure 4.22 Removing the motherboard from logic lower assembly ......................................4-32
Figure 4.23 Removing the DC IN connector and cable...........................................................4-33
Figure 4.24 Picking up the motherboard .................................................................................4-34
Figure 4.25 Aligning the motherboard connectors ..................................................................4-35
Figure 4.26 Installing the DC IN connector.............................................................................4-36
Figure 4.27 Removing the USB Board....................................................................................4-37
Figure 4.28 Removing the ODD Board ...................................................................................4-38
Figure 4.29 Removing the Thermal Module ...........................................................................4-39
Figure 4.30 Removing the VGA Board ..........................................................................................
Figure 4.31 Reapply Shinetsu 7726 grease on the thermal module and
remove any release papers....................................................................................4-40
Figure 4.32 Removing the CPU...............................................................................................4-41
Figure 4.33 Removing the WLAN card...................................................................................4-43
Figure 4.34 Removing the modem card ..................................................................................4-44
Figure 4.35 Removing the LCD Bezel Assembly ...................................................................4-45
Figure 4.36 Taking out the hinge wall.....................................................................................4-46
Figure 4.37 Removing the bezel from the hinge wall..............................................................4-46
Figure 4.38 Reroute the cables ................................................................................................4-47
Figure 4.39 Pressing the bezel hinge wall ...............................................................................4-48
Figure 4.40 Pressing the bezel downside hook........................................................................4-49
Figure 4.41 Pressing the left and right side of the bezel..........................................................4-49
Figure 4.42 Pressing the bezel upside hooks ...........................................................................4-50
Figure 4.43 Removing the LCD Module from the LCD cover assembly................................4-51
Figure 4.44 Removing the LCD Hinge Assembly...................................................................4-52

Satellite L550/ProL550 Series Maintenance Manual
Figure 4.45 Removing the LVDS cable ..................................................................................4-53
Figure 4.46 Installing the LCD Hinge Assembly ....................................................................4-53
Figure 4.47 Removing the LCD Module from the LCD cover assembly................................4-53
Figure 4.48 Removing the CMOS board and Microphone......................................................4-53
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 Series Screw Torque List ...................................................................................... F-1
Appendix G Reliability..............................................................................................................G-1

Chapter 1
Hardware Overview

1 Hardware Overview
Satellite L550 Maintenance Manual 1-ii
Chapter 1 Contents
1.1 Features...................................................................................................................1-1
1.2 2.5-inch HDD .........................................................................................................1-9
1.3 DVD Super Multi (+-R Double Layer).................................................................1-10
1.4 Power Supply........................................................................................................1-11
1.5 Batteries ................................................................................................................1-13
1.5.1 Main Battery..........................................................................................1-13
1.5.2 Battery Charging Control ......................................................................1-13
1.5.3 RTC Battery ..........................................................................................1-14

1 Hardware Overview
Satellite L550 Maintenance Manual 1-iii
Figures
Figure 1-1A
ID Parts Description Placement Part A ..........................................................1-5
Figure 1-2 SATA HDD....................................................................................................1-9
Figure 1-3 DVD Super Multi Drive...............................................................................1-10
Tables
Table 1-1
HDD Specifications........................................................................................1-9
Table 1-2 DVD Super Multi Drive Specifications .......................................................1-10
Table 1-3 Quick/Normal Charging Time......................................................................1-13

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Satellite L550 Maintenance Manual 1-1
1.1 Features
The Toshiba Satellite L550/L550D is a full-size PC notebook equipped with a Dual Core
Processor, providing high-speed processing capabilities and advanced features. The computer
employs a lithium ion battery that allows it to be battery-operated for long periods of time. The
display uses 17.3-inch WXGA LCD panel. Many features can be Built To Order (BTO) to
customize the system for each user.
The computer has the following features:
Processor (BTO)
The computer is equipped with one of the following Intel®processors:
Intel®Dual CoreTM 2 Duo Processor
Intel®Penryn/Celeron Processor Support
Memory (BTO)
The computer has two SODIMM slots which come standard with 512MB/1GB/2GB/4GB,
accepting BTO for your memory requirements. It can incorporate up to either 4GB or 8 GB
of main memory depending on the models. It supports DDR2 at 667MHz and 800MHz.
Battery Pack
The computer is powered by one rechargeable and removable lithium ion battery pack. The
capacity can be either 3-cell, 6-cell or 12-cell, depending on the model of the computer.
RTC Battery
The internal RTC battery backs up the Real Time Clock and calendar.
Hard Disk Drive (HDD) (BTO)
The computer accommodates a 9.5 mm HDD with the following storage capacities:
120/160/250/320 GB, S-ATA (5,400rpm)
160/200/320 GB, S-ATA (7,200rpm)
The computer has an optional 9.5mm SSD with the following capacities:
64/128 GB

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ODD (BTO)
12.7mm height DVD Super Multi drive supporting ±R Double Layer
 12.7mm height DVD Super Multi drive supporting ±R Double Layer w/ Labelflash
Display
The LCD display comes with the following:
17.3" W (16:9) HD+ (1600x900) CSV WhiteLED
Graphics (BTO)
Intel®GM45/GL40 integrated graphics display
ATI Mobility RadeonTM HD 4500 for external graphics support, DDR3 (256/512MB)
(depending on model)
Keyboard
The computer is equipped with a Toshiba standard 360mm keyboard, which has A4 + 10key
Genchaku Keyboard without stick-point. It is a Vista-compliant keyboard with optional
Windows keys and application keys (except for Linux models).
Pointing Device
The integrated Wide Touch Pad and two control buttons in the palm rest allow control of
the on-screen pointer and support functions such as the scrolling of windows.
External Monitor Port
The analog VGA port provides support for VESA DDC2B compatible functions. A WDDM
driver is ready for Vista.
Universal Serial Bus (USB) Ports
The computer has two USB 2.0 ports along with one USB/eSATA combo port (see below).
It is supported to daisy-chain a maximum of 127 USB devices. The serial data transfer rate
is 480 Mbps or 12 Mbps and 1.5 Mbps. These ports support PnP installation and hot
plugging.

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Satellite L550 Maintenance Manual 1-4
eSATA
The external SATA or eSATA port executes high-speed data transfer to external devices
and supports shielded cable lengths of up to 2 meters outside the PC. The port also provides
dual USB compatibility.
Express Card Slot (BTO)
The internal Express Card slot is a universal slot. This slot supports ExpressCard 34/54 and
comes with a dummy card. It also supports USB/PCI Express signals.
Bridge Media Slot
This slot allows you to insert SD, MiniSD/ MicroSD (through an adaptor), Memory Stick,
Memory Stick Pro and MMC memory cards. It supports high-speed SD and SDHC. This
model does not support CF, SmartMedia cards, xD or Memory Stick Duo cards.
Sound system
The integrated sound system is composed of two Realtek Azalia internal speakers, an
internal microphone (BTO with internal camera), and standard Microphone-IN and
Headphone-OUT ports.
Internal Camera (BTO)
It supports 0.3M and 1.0M pixels with Auto Macro and comes with a blue LED indicator.
An internal microphone is BTO with the internal camera and includes echo cancellation.
The camera is not a rotation type.
Headphones/Line-out Jack
This jack connects digital speakers or stereo headphones (16 ohm minimum). When
connected to digital speakers or headphones, the internal speaker is automatically disabled.
Microphone/ Line-in Jack
A 3.5mm mini microphone jack enables connection of a three-conductor microphone for
monaural input and also enables the connection of a stereo device for audio input.
HDMI Out Port (BTO)
The HDMI 1.3 out port can connect with a Type A connector HDMI cable. The HDMI out