Toshiba Personal Computer Prol450D Maintenance Manual

2014-12-13

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Toshiba Personal Computer
Satellite
Maintenance Manual

TOSHIBA CORPORATION

[CONFIDENTIAL]

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.

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Satellite L450D / ProL450D Series Maintenance

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 L450D / ProL450D Series Maintenance Manual

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iii

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.

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Key operation
Some operations require you to simultaneously use two or more keys. We identify such operations
by the key top symbols separated by a plus (+) sign. For example, Ctrl + Pause (Break) means
you must hold down Ctrl and at the same time press Pause (Break). If three keys are used, hold
down the first two and at the same time press the third.
User input
Text that you are instructed to type in is shown in the boldface type below:
DISKCOPY A: B:
The display
Text generated by the computer that appears on its display is presented in the typeface below:
Format complete
System transferred

Satellite L450D / ProL450D Series Maintenance Manual

[CONFIDENTIAL]

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

Touchpad Troubleshooting ................................................Error! Bookmark not defined.

2.8

Speaker Troubleshooting ...................................................Error! Bookmark not defined.

2.9

Optical drive troubleshooting ............................................Error! Bookmark not defined.

2.10

Modem Troubleshooting....................................................Error! Bookmark not defined.

2.11

Wireless LAN Troubleshooting.........................................Error! Bookmark not defined.

2.12

Camera Troubleshooting....................................................Error! Bookmark not defined.

2.13

3 in 1 card Troubleshooting ...............................................Error! Bookmark not defined.

2.14

HDD Troubleshooting .......................................................Error! Bookmark not defined.

2.15 CRT Port Troubleshooting.....................................................Error! Bookmark not defined.
2.16

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HDMI Troubleshooting .....................................................Error! Bookmark not defined.

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Satellite L450D / ProL450D Series Maintenance

2.17 MIC troubleshooting process ………………………………………………………….. 42
2.18 Thermal Module troubleshooting ..........................................Error! Bookmark not defined.
2.19 LAN 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 ................................................................................................................10

3.6

Main Battery Charge Test....................................................................................................12

3.7

FDD Test..........................................................................................................................…13

3.8

Memory Check.....................................................................................................................14

3.9

Keyboard Test......................................................................................................................17

3.10

Mouse (Pad) Test .................................................................................................................19

3.11

LCD Pixels Mode Test ........................................................................................................20

3.12

Magnetic switch Test ...........................................................................................................21

3.13

LAN Test .............................................................................................................................23

3.14

RTC Test..............................................................................................................................26

3.15

Read 1394 GUID .................................................................................................................27

3.16

Speaker EQ Check…………...………….…….……………..……………...……………28

3.17

Button Test…………..……………………….………….……………….….…. ……….28

3.18

Front edge Logo Check........................................................................................................29

3.19

1st HDD Test ……………………………....…………….……………....….…………..32

3.20

2nd HDD Test ……………………………....…………….……………....….…………..34

3.21

RDMI Test ………………...………………………….………………...…..……………38

3.22

WDMI Test

…………….…………………………….…………….…....….…………38

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Chapter 4
4.1

Replacement Procedures

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 Laptop 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.
Removing the Optional Memory .......................................Error! Bookmark not defined.
Installing the Optional Memory .........................................Error! Bookmark not defined.

4.5

WLAN Card.......................................................................Error! Bookmark not defined.
Removing the WLAN Card................................................Error! Bookmark not defined.
Installing the WLAN Card .................................................Error! Bookmark not defined.

4.6

Modem Card (BTO)...........................................................Error! Bookmark not defined.
Removing the Modem Card ...............................................Error! Bookmark not defined.
Installing the Modem Card.................................................Error! Bookmark not defined.

4.7

ODD...................................................................................Error! Bookmark not defined.
Removing the ODD Bay Module.......................................Error! Bookmark not defined.
Installing the ODD Bay Module ........................................Error! Bookmark not defined.

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Disassembling the ODD Drive...........................................Error! Bookmark not defined.
Assembling the ODD Drive ...............................................Error! Bookmark not defined.
4.8

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.

4.9

Logic Upper Assembly ......................................................Error! Bookmark not defined.
Removing the Logic Upper Assembly ...............................Error! Bookmark not defined.
Installing the Logic Upper Assembly ................................Error! Bookmark not defined.

4.10

Power Board.......................................................................Error! Bookmark not defined.
Removing the Power Board ...............................................Error! Bookmark not defined.
Installing the power switch board ......................................Error! Bookmark not defined.

4.11

Speakers .............................................................................Error! Bookmark not defined.
Removing the Speakers......................................................Error! Bookmark not defined.
Installing the Speakers .......................................................Error! Bookmark not defined.

4.12

Touch Pad Bracket.............................................................Error! Bookmark not defined.
Removing the Touch Pad Bracket......................................Error! Bookmark not defined.
Installing the Touch Pad Bracket .......................................Error! Bookmark not defined.

4.13

Thermal Fan .......................................................................Error! Bookmark not defined.
Removing the Thermal Fan................................................Error! Bookmark not defined.
Installing the Thermal Fan .................................................Error! Bookmark not defined.

4.14

Motherboard.......................................................................Error! Bookmark not defined.
Removing the Motherboard ...............................................Error! Bookmark not defined.
Installing the Motherboard.................................................Error! Bookmark not defined.

4.15

CPU and Thermal Module .................................................Error! Bookmark not defined.
Removing CPU and Thermal Module................................Error! Bookmark not defined.
Installing CPU and Thermal Module .................................Error! Bookmark not defined.

4.16

Display Assembly ..............................................................Error! Bookmark not defined.
Removing the Display Assembly.......................................Error! Bookmark not defined.
Installing the Display Assembly ........................................Error! Bookmark not defined.

4.17

LCD Bezel Assembly ........................................................Error! Bookmark not defined.
Removing the LCD Bezel Assembly .................................Error! Bookmark not defined.

Satellite L450D / ProL450D Series Maintenance Manual

[CONFIDENTIAL]

Installing the Display Mask ...............................................Error! Bookmark not defined.
4.18

LCD Module and Inverter Board.......................................Error! Bookmark not defined.
Removing the LCD Module and Inverter Board................Error! Bookmark not defined.
Installing the LCD Module and Inverter Board .................Error! Bookmark not defined.

4.19

Camera (BTO) ...................................................................Error! Bookmark not defined.
Removing the Camera........................................................Error! Bookmark not defined.
Installing the Camera .........................................................Error! Bookmark not defined.

4.20

Hinge Saddle......................................................................Error! Bookmark not defined.
Removing the Hinge Saddle...............................................Error! Bookmark not defined.
Installing the Hinge Saddle ................................................Error! Bookmark not defined.

4.21

USB Board.........................................................................Error! Bookmark not defined.
Removing the USB Board..................................................Error! Bookmark not defined.
Installing the USB Board ...................................................Error! Bookmark not defined.

4.22

RJ11 Jack ...........................................................................Error! Bookmark not defined.
Removing the RJ11 Jack....................................................Error! Bookmark not defined.
Installing the RJ11 Jack .....................................................Error! Bookmark not defined.

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 .................................................................................. 4-13

Figure 4.5

Removing the RAM from the laptop ................................................................. 4-14

Figure 4.6

Removing the ODD Bay module....................................................................... 4-16

Figure 4.7

Removing the bracket from the ODD drive....................................................... 4-17

Figure 4.8

Removing the keyboard cover ........................................................................... 4-19

Figure 4.9

Removing screws from the keyboard ................................................................ 4-20

Figure 4.10

Removing the keyboard ..................................................................................... 4-21

Figure 4.11

Removing the WLAN card ................................................................................ 4-22

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Figure 4.12

Removing the screws from the bottom of the laptop.........................................4-23

Figure 4.13

Removing six screws from under the keyboard.................................................4-24

Figure 4.14

Detaching cables from under the keyboard .......................................................4-25

Figure 4.15

Removing the power board................................................................................4-26

Figure 4.16

Removing the screws from the touch pad button board ....................................4-27

Figure 4.17

Removing the touch pad bracket .......................................................................4-28

Figure 4.18

Removing the thermal fan from the logic lower assembly ................................4-29

Figure 4.19

Removing the motherboard from logic lower assembly....................................4-30

Figure 4.20

Removing the DC IN connector and cable ........................................................4-31

Figure 4.21

Picking up the motherboard ...............................................................................4-31

Figure 4.22

Aligning the motherboard connectors................................................................4-32

Figure 4.23

Installing the DC IN connector..........................................................................4-33

Figure 4.24

Removing the Thermal Module .........................................................................4-35

Figure 4.25

Removing the VGA Board.................................................................................4-36

Figure 4.26

Reapply Shinetsu 7726 grease on the thermal module and
remove any release papers .................................................................................4-37

Figure 4.27

Removing the CPU ............................................................................................4-38

Figure 4.28

Removing the modem card ................................................................................4-40

Figure 4.29

Removing the speakers ......................................................................................4-41

Figure 4.30

Removing the display assembly.........................................................................4-43

Figure 4.31

Removing the LCD Bezel Assembly.................................................................4-45

Figure 4.32

Taking out the hinge wall ..................................................................................4-46

Figure 4.33

Removing the bezel from the hinge wall ...........................................................4-46

Figure 4.34

Reroute the cables ..............................................................................................4-47

Figure 4.35

Pressing the bezel hinge wall.............................................................................4-48

Figure 4.36

Pressing the bezel downside hook .....................................................................4-48

Figure 4.37

Pressing the left and right side of the bezel .......................................................4-49

Figure 4.38

Pressing the bezel upside hooks.........................................................................4-49

Figure 4.39

Removing the Inverter Board ............................................................................4-50

Figure 4.40

Removing the LCD Module from the LCD cover assembly .............................4-51

Figure 4.41

Removing the LCD Hinge Assembly ................................................................4-51

Figure 4.42

Removing the LVDS cable ................................................................................4-52

Satellite L450D / ProL450D Series Maintenance Manual

[CONFIDENTIAL]

Figure 4.43

Installing the LCD Hinge Assembly.................................................................. 4-53

Figure 4.44

Removing the LCD Module from the LCD cover assembly ............................. 4-54

Figure 4.45

Removing the CMOS board and MIC ............................................................... 4-55

Figure 4.46

Removing the USB Board ................................................................................. 4-56

Figure 4.47

Removing the Bluetooth card ............................................................................ 4-57

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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

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Chapter 1
Hardware Overview

1 Hardware Overview

Chapter 1

Contents

1.1

Features .................................................................................................................. 1-1

1.2

2.5-inch HDD ....................................................................................................... 1-10

1.3

DVD Super Multi (+-R Double Layer) ................................................................ 1-11

1.4

Power Supply ....................................................................................................... 1-12

1.5

Batteries................................................................................................................ 1-14
1.5.1

Main Battery ......................................................................................... 1-14

1.5.2

Battery Charging Control ..................................................................... 1-14

1.5.3

RTC Battery.......................................................................................... 1-15

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-ii

1 Hardware Overview

Figures
Figure 1-1

ID Parts Description Placement Part A.......................................................... 1-5

Figure 1-2

The system diagram of the computer (Intel platform) ................................... 1-6

Figure 1-3

The system diagram of the computer (AMD platform) ................................. 1-7

Figure 1-4

SATA HDD ................................................................................................. 1-10

Figure 1-5

DVD Super Multi Drive .............................................................................. 1-11

Tables
Table 1-1

HDD Specifications ..................................................................................... 1-10

Table 1-2

DVD Super Multi Drive Specifications....................................................... 1-11

Table 1-3

Quick/Normal Charging Time ..................................................................... 1-14

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-iii

Error! Style not defined. Error! Style not defined.

1.1

1 Hardware Overview

Features

The Toshiba Satellite L450/Pro L450/L450D/Pro L450D is a full size notebook PC based on the
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 a longer period
of time. The display uses 15.6-inch WXGA LCD panel. The PGA socket supports BTO for the
CPU so that the system can be designed to suit your needs.

The computer has the following features:
 Processor
The computer is equipped with one of the following processors.
 Intel Penryn processor Dual (25W/35W) Core
 Intel Penryn SEAM CPU
 Intel Merom Celeron/ SEAM CPU
 AMD Lion (Turion X2) Ultra Dual-Core Processor
 AMD Lion (Turion X2) Dual-Core Processor
 AMD Athlon X2 Dual-Core Processor
 AMD Sable (Sempron) Processor
 Memory
The computer has two SODIMMs slot comes standard with 1GB/2GB, accepting BTO for
your memory requirements. It can incorporate up to 8 GB of main memory. It supports
DDR2 at 800MHz.
 Battery Pack
The computer is powered by one rechargeable and removable Lithium Ion battery pack. The
capacity can be either 3-cell or 6-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)
The computer accommodates 9.5 mm HDD types with following storage capacities:
 160/250/320/400/500 GB (9.5 mm thick) SATA (5,400rpm)
Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-1

1 Hardware Overview

Error! Style not defined. Error! Style not defined.

 ODD
 12.7mm height DVD Super Multi drive supporting ±R Double Layer w/ Labelflash

 Display
The LCD displays available come with one of following types:
 15.6" COLOR TFT/HD LCD, 1366 X 768 HD Resolution
 Graphics
 Intel GM45/GL40 integrated graphic
 AMD RS780MN/RS780MC integrated graphic
(depending on the model of the computer).
 Keyboard
The computer is equipped with a Toshiba standard 300mm keyboard, which has 86/87 keys
support without stick-point. It is a Vista compliance keyboard, where you may find
Windows key and application keys.
 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 three USB 2.0 ports. 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.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-2

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1 Hardware Overview

 Bridge Media Slot
This slot allows you to insert SD, MiniSD/ MicroSD (through adapter), Memory Stick and
MMC memory card. It supports High speed SD and SDHC. An I/O port heel cover is
needed. This model does not support CF cards.
 Sound system
The integrated sound system provides support for the computer's internal speakers and
microphone, as allowing an external microphone and headphones to be connected via the
appropriate jacks.
 Internal Camera (BTO)
It supports 0.3M and 1.3M pixels with Auto Macro. It comes with blue LED. The internal
microphone is BTO with the internal camera. The microphone comes with echo
cancellation. This camera is not a rotation type.
 HDMI Out Port (BTO)
HDMI 1.3 out port can connect with Type A connector HDMI cable. One HDMI cable can
send and receive video, audio and control signals.
 Headphones Line out Jack
This jack connects digital speakers or a stereo headphone (16 ohm minimum). When
connected to a digital speaker 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.
 LAN
The computer has built-in support for 10M/100M Ethernet LAN (10/100 megabits per
second, 10/100BASE-T). It is a Realtek 8103EL for 10M/100Mbit LAN.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-3

1 Hardware Overview

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 Wireless LAN
Some computers in this series are equipped with a Wireless LAN card. This WLAN module
may come in with the following types (depending on the model):
 Intel 802.11a/b/g/n (Shirley Peak 1x2; Shirley Peak 3x3)
 Intel 802.16e & 80211a/b/g/n (Echo Peak 1x2)
 Atheros HB93, Atheros HB95 – HMC type; Atheros XB91, Atheros XB95 – FMC type
 Realtek 802.11b/g (RTL8187B) – FMC type, Realtek 802.11b/g (RTL8187SE) – HMC
type, 802.11b/g/n (RTL8191SE)
 Internal Modem (BTO)
Some models are equipped with the integrated modem. The integrated modem provides
capability for data and fax communications that support the V.90 (V.92) standards and
includes a modem jack for connection to the telephone line. Please note that both the V.90
and V.92 standards are only supported in the USA, Canada, United Kingdom, France,
Germany and Australia - only the V.90 standard is supported in other regions. You should
also be aware that the speed of data and fax transfer will depend on the analog telephone
line conditions. The integrated model is only installed as a standard device in some markets.
This internal modem comes with MDC 1.5 solution (Azalia interface).
 Figure 1-1 shows the computer and its system unit configuration.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-4

Error! Style not defined. Error! Style not defined.

Figure 1-1

1 Hardware Overview

ID Parts Description Placement Part A

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-5

1 Hardware Overview

Error! Style not defined. Error! Style not defined.

Compal Confidential
Model Name : NBWAA
File Name : LA-5821P

page 5

uPGA-478 Package
(Socket P) page

FSB

H_A#(3..35)

CRT

667/800/1066MHz

Clock Generator
SLG8SP556VTR

EMC1402-1
page 5

page 17
1

5,6,7

H_D#(0..63)

Memory BUS(DDRII)

page 18

Intel Cantiga

LCD Conn.

Dual Channel

GM45/GL40

page 18

page 19

USB port 7
page 25

BANK 0, 1, 2, 3

page 15,16

page 8,9,10,11,12,13,14

DMI x 4
PCIeMini Card
WLAN

200pin DDRII-SO-DIMM X2

1.8V DDRII 533/667/800

uFCBGA-1329

Level Shifter

HDMI Conn.

Thermal Sensor

Intel Penryn Processor

Fan Control

C-Link

USB
5V 480MHz

USB conn

USB port 0,1

USB port 3

page 24

USB

PCIe 1x [2,4,5]
1.5V 2.5GHz(250MB/s)

PCIe port 4
page 25

USB/B
5V 480MHz

Intel ICH9-M

page 24

Int. Camera
USB port 11
page 18,25

BGA-676
RJ45

RTL8103EL 10/100M

page 26

PCIe port 3

SATA port 1

PCIe 1x
1.5V 2.5GHz(250MB/s)

page 19,20,21,22

5V 1.5GHz(150MB/s)

SATA port 4
5V 1.5GHz(150MB/s)

RTS5159-VDD 3IN1

page 24

SATA ODD

page 24

USB
5V 480MHz

page 29

LPC BUS

USB port 10

3.3V 33 MHz

SATA HDD

page 26

HD Audio

3.3V 24.576MHz/48Mhz

HDA Codec

MDC 1.5 Conn
Debug Port
NBWAA Sub-boards

RTC CKT.

ALC272

page 25

ENE KB926 D3

page 31

page 27

page 30

page 21

USB/B

Touch Pad
page 31

page 33

Power/B

AMP.

page 24

DC/DC Interface CKT.

Int.KBD

page 31

Int.
MIC CONN
page 28

SPI ROM
page 31

MIC CONN
page 28

TPA6017

HP CONN
page 28

page 28

page 32
SPK CONN
page 28

Power Circuit DC/DC

CS/B

page 34~40

page 31

Compal Electronics, Inc.

Compal Secret Data

Security Classification
2009/07/28

Issued Date

Deciphered Date

2010/07/28

THIS SHEET OF ENGINEERING DRAWING IS THE PROPRIETARY PROPERTY OF COMPAL ELECTRONICS, INC. AND CONTAINS CONFIDENTIAL
AND TRADE SECRET INFORMATION. THIS SHEET MAY NOT BE TRANSFERED FROM THE CUSTODY OF THE COMPETENT DIVISION OF R&D
DEPARTMENT EXCEPT AS AUTHORIZED BY COMPAL ELECTRONICS, INC. NEITHER THIS SHEET NOR THE INFORMATION IT CONTAINS
MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC.
A

Figure 1-2

Title

Block Diagrams
Size

Document Number

Rev
1.0

NBWAA LA5821P M/B
Date:

Monday, August 10, 2009

Sheet

The system diagram of the computer (Intel platform)

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-6

Error! Style not defined. Error! Style not defined.
A

Compal Confidential

Fan Control

Thermal Sensor
ADM1032ARMZ

Dual Channel

uFCPGA-638 Package

File Name : LA-5831P

Memory BUS(DDRII)

AMD S1G2 CPU

page 5

Model Name : NBWAE

1 Hardware Overview

Clock Generator

page 7

SLG8SP626

page 16

1.8V DDRII 667/800MHZ

page 5,6,7.8

200pin DDRII-SO-DIMM X2

Hyper Transport Link 2.6GHz
16X16

CRT

page 9,10

BANK 0, 1, 2, 3

ATI

page 17

RTL8103E LAN 10/100M

RS780MN
RS780MC

LCD Conn.

page 18

PCIe port 3

RJ45

page 26

PCIe 4x
1.5V 2.5GHz(250MB/s)

PCIe Mini Card WLAN
HDMI Conn.

PCIe Port 2

PCIE-Express 4X

USB Port 8

page 19

page 27

page 11,12,13,14.15

A-Link Express II
4X PCI-E

USB/B Right

USB/B Left

USB port 0,1

USB port 2

page 25

USB

page 25

3IN1 Card Reader
RTS5159-VDD

5V 480MHz

Int. Camera
USB port 9
page 18

USB port 4

ATI

page 28

SB700

SATA port 1
5V 1.5GHz(150MB/s)

SATA port 3
5V 1.5GHz(150MB/s)

SATA HDD

page 25

SATA ODD

page 25

page 20,21,22,23,24
3

HD Audio

LPC BUS

3.3V 24.576MHz/48Mhz

3.3V 33 MHz

HDA Codec
ALC272

MDC 1.5 Conn
Debug Port
page 31

ENE KB926D3

page 31

page 29

page 32

RTC CKT.
page 20

RJ11

NBWAE Sub-boards
Power On/Off CKT.
page 33

DC/DC Interface CKT.
4

page 34

Power Circuit DC/DC

Touch Pad
page 33

Power/B
LS-4574P

page 31

SPI ROM
page 31

page 31

MIC Conn
page 30

AMP.
TPA6017

Int. MIC Conn HP Conn
page 30

page 30

page 33

SPK Conn

Cap Sensor/B
LS-5822P page
USB/B
LS-5821P

Int.KBD

page 30

page 25

page 35,36,37,38
39,40,41.42

Compal Secret Data

Security Classification
2009-02-12

Issued Date

2009-02-12

Deciphered Date

Title

Compal Electronics, Inc.

THIS SHEET OF ENGINEERING DRAWING IS THE PROPRIETARY PROPERTY OF COMPAL ELECTRONICS, INC. AND CONTAINS CONFIDENTIAL
Size Document Number
AND TRADE SECRET INFORMATION. THIS SHEET MAY NOT BE TRANSFERED FROM THE CUSTODY OF THE COMPETENT DIVISION OF R&D
DEPARTMENT EXCEPT AS AUTHORIZED BY COMPAL ELECTRONICS, INC. NEITHER THIS SHEET NOR THE INFORMATION IT CONTAINS Custom
MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC.

Date:

Figure 1-3

Block Diagram
Rev
1.0

LA-5831P

Thursday, August 06, 2009

Sheet

The system diagram of the computer (AMD platform)

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-7

1 Hardware Overview

Error! Style not defined. Error! Style not defined.

The system unit of the computer consists of the following components:
 Processor
The computer is equipped with one of the following processors.
 Intel Penryn processor Dual (25W/35W) Core
 Intel Penryn SEAM CPU
 Intel Merom Celeron/ SEAM CPU
 AMD Lion (Turion X2) Ultra Dual-Core Processor
 AMD Lion (Turion X2) Dual-Core Processor
 AMD Athlon X2 Dual-Core Processor
 AMD Sable (Sempron) Processor
 Memory
The computer has two SODIMMs slot comes standard with 1GB/2GB, accepting BTO for
your memory requirements. It can incorporate up to 8 GB of main memory. It supports
DDR2 at 800MHz.
 BIOS ROM (EEPROM)
The system BIOS and Keyboard BIOS share one single 1024KB flash ROM. The flash
utility can be used to program both system and keyboard BIOS at the same time.
 System Controllers
 Advanced Power Management 1.2 support
 ACPI2.0 b and PC2001 compliant
 Support SMBus specification V2.0
 Hot keys for system control
 Audio volume output control
 External LED control
 Battery scope report and control
 Sticky key support
 Power switch control
 Two host interface channels support
 Supports three independent devices
 Internal Keyboard country selection
 Wireless LAN on/off button
Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

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1 Hardware Overview

 EC/KBC
Supported by ENE KB926QFD3
 Clock Generator
Supported by Realtek (RTM880N), Silego (SLG8SP626), SILEGO SLG8SP626 and
REALTEK RTM880N
 Graphics Controller
 Intel® GM45/GL40 as integrated graphics solution
 AMD RS780MN/RS780MC as intergrated solution
 DVI-D supported by conversion cable from HDMI
 Audio Controller
 Realtek Azalia ALC272
 One Audio-in port: Mic.-in/Line-in
 One Audio-out port: Headphone-out / Line-out
 Internal Microphone (with Internal Camera, MIC with echo cancellation)
 Volume control: Digital control, rotary type, no mute function
 Microsoft inbox audio driver support
 Software EQ support
 Wireless LAN Controller
 Intel 802.11a/b/g/n [Echo Peak 1x2 (TBD) & Shirley Peak 1x2 & Shirley Peak 3x3
(TBD)]
 Atheros 802.11b/g [XB95 (TBD) & HB95 (TBD)] , b/g/n [XB91 1x2 (TBD) & HB93
2x2 (TBD)]
 Realtek 802.11b/g (RTL8187B & RTL8187SE) , b/g/n (RTL8191SE 1x2)
 Intel WiMAX 802.16e (Echo Peak 1x2) (TBD)
 Normal screw for all model

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-9

1 Hardware Overview

1.2

Error! Style not defined. Error! Style not defined.

2.5-inch HDD

The computer contains an extremely low-profile and lightweight, high-performance HDD. The
HDD incorporates 9.5 mm height magnetic disk and mini-Winchester type magnetic heads. The
HDD interface conforms to Serial ATA. Storage capacities supported are 160/250/320/400/500
GB.
The HDD is shown in Figure 1-2 and some of its specifications are listed in Table 1-1.

Figure 1-4
Table 1-1

SATA HDD
HDD Specifications
Specifications

Item
Capacity (GB)
Rotational Speed (RPM)
Height
User Data Sectors
Bytes / Sector

160 GB

250 GB

320G

400 GB

500 GB

5400 RPM

9.5 mm

312,581,808

488,397,168

625,142,448

781,422,768

976,773,168

512

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-10

Error! Style not defined. Error! Style not defined.

1.3

1 Hardware Overview

DVD Super Multi (+-R Double Layer)

The DVD Super Multi drive accepts 12-cm (4.72-inch) and 8-cm (3.15-inch) discs. At maximum,
the drive can play back a DVD at 8x speed, read CD-ROM at 24x speed, and write CD-R at 24x
speed, CD-RW at 4x speed, US CD-RW at 24x speed, High Speed CD-RW at 10x speed,
DVD-R at 8x speed, DVD-RW at 6x speed, DVD+R at 8x speed, DVD+R (Double Layer) at 6x
speed, DVD-R (Double Layer) at 6x speed, DVD+RW at 8x speed and DVD-RAM at 5x speed.
The DVD Super Multi drive is shown in Figure 1-3 and its specifications are listed in Table 1-2.

Figure 1-5
Table 1-2

DVD Super Multi Drive Specifications

Item
Data Transfer Rate (Mbytes/s)

DVD Super Multi Drive

DVD-ROM Mode

CD-ROM Mode

33.3 (U-DMA transfer mode 2)
16.6 (PIO mode 4, Multiword DMA mode 2)

Access Time (ms)
Average Random Access

180

Data Buffer Size (Mbytes)

2MB

130

DVD:

Formats Supported

DVD-VIDEO, DVD-ROM, DVD-R, DVD-RW, DVD-RAM, DVD+R,
DVD+-R (Double Layer), DVD+RW.
CD:
CD-DA, CD-ROM, CD-R, CD-RW, CD-ROMXA, Photo CD
(Multi-Session), Video CD, CD-Extra (CD+), CD-Text.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-11

1 Hardware Overview

1.4

Error! Style not defined. Error! Style not defined.

Power Supply

The power supply unit provides constant voltage 19V for the system board and performs the
following functions:
1. Power input monitor
 Checks whether the AC adapter (DC power supply) is connected to the computer.
 Checks whether the battery pack is connected to the computer.
 Monitors the DC power supply input voltage (AC Adapter output voltage).
2. Power supply's internal control
 Turns on and off the battery pack charging power supply.
 Issues a charging current instruction to the PWM control IC of the battery pack charging
power supply.
 Controls the supply of DC power supply input (AC Adapter output) to the power supply
unit.
 Controls the supply of power to the system block (load/logic circuit side).
 Controls forced shutdown if the power supply malfunctions.
3. Logic circuit control
 Instructs the gate array to enable/disable tuning the power on.
 Controls power-on/off operation.
4. Status display
 Battery indicator (in green or amber).
 DC-IN indicator (in green color)
5. External interface
 Performs communication through the I2C bus (via the internal EC/KBC).
 Transfers the power supply operation mode.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-12

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1 Hardware Overview

6. Output monitor
 Monitors the voltage output to the system block (load/logic circuit side).
 Monitors the voltage, over voltage, input/output current of the battery pack.
 Monitors the internal temperature of the battery pack.
 Monitors the supply voltage from the AC adapter.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-13

1 Hardware Overview

1.5

Error! Style not defined. Error! Style not defined.

Batteries

The computer has the following two types of batteries:
 Main Battery Pack
 Real Time Clock (RTC) Battery

1.5.1

Main Battery

The main battery pack serves as the computer's main power source when the AC adapter is not
attached. The main battery maintains the state of the computer so that it can resume it.
 3-cell LI-ION / 6-cell LI-ION
 Inserted from bottom side
 Charging time 12 hrs max.(System on)/ 4 hrs max. (System off)
 One hour quick charge to 60%~70%

1.5.2

Battery Charging Control

Battery charging is controlled by EC KB926. When the AC adapter and battery pack are attached
to the computer, the EC KB926 controls the charge on/off state and detects a full charge.
 Battery Charge
When the AC adapter is attached, the battery is charged by off-state charge when the system
is powered off or by on-state charge when it is powered on.
Table 1-3

Quick/Normal Charging Time

State

Charge Time

Off-State Charge

3/6 Cell

About 4 hours max

On-State Charge

3/6 Cell

About 12 hours max

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-14

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1 Hardware Overview

NOTE: The time required for normal charge depends on the power consumption by the
system. Using the fluorescent lamp and frequently accessing the disk consume much power
and lengthen the charge time.
Any of the following cases stops battery charge:
1. The battery becomes fully charged.
2. The AC adapter or battery pack is removed.
3. The battery or AC adapter voltage is abnormal.

 Detection of full charge
A full charge is detected only when the battery is being charged by quick or normal charge.
A full charge is detected when either of the following conditions is met:
1. The current in the battery charging circuit drops below the predetermined value.
2. The charging time exceeds the fixed limit.

1.5.3

RTC Battery

The RTC battery provides power to keep the current date, time and other system information in
memory while the computer is turned off.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

1-15

Chapter 2
Troubleshooting Procedures
2

2 Troubleshooting Procedures

Chapter 2

Contents

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 ..............................................................................................21
2.8 Speaker Troubleshooting .................................................................................................23
2.9 Optical drive troubleshooting ..........................................................................................25
2.10 Modem Troubleshooting..................................................................................................29
2.11 Wireless LAN Troubleshooting.......................................................................................31
2.12 Camera Troubleshooting..................................................................................................33
2.13 3 in 1 card Troubleshooting .............................................................................................35
2.14 HDD Troubleshooting .....................................................................................................37
2.15 CRT Port Troubleshooting...............................................................................................39
2.16 HDMI Troubleshooting ...................................................................................................41
2.17 MIC troubleshooting process ………………………………………………………….. 42
2.18 Thermal Module troubleshooting ....................................................................................45
2.19 LAN troubleshooting .......................................................................................................47

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Figure
Figure 2-1

Troubleshooting Flowchart(1/2) ….…………………………………………..4

Figure 2-1

Troubleshooting Flowchart(2/2)…..…………………………………………..6

Figure 2-2

Power Supply Flowchart ………….…………………………………………..9

Figure 2-3

Display Flowchart ……………………………………………………………14

Figure 2-4

Keyboard troubleshooting process .................................................................. 17

Figure 2-5

External USB device troubleshooting process ................................................ 19

Figure 2-6

TouchPad troubleshooting Process …………………………………………..21

Figure 2-8

Speaker troubleshooting process ..................................................................... 23

Figure 2-9

Optical drive troubleshooting process ……………………………………….25

Figure 2-10

Modem troubleshooting process ………….…………………………………28

Figure 2-11

Wireless LAN troubleshooting process ….…………………………………..30

Figure 2-12

Camera troubleshooting process ……………………………………………. 32

Figure 2-13 3 in 1 card troubleshooting process………………………….…..…….………34
Figure 2-14

HDD troubleshooting process……………………………….………………..36

Figure 2-15 CRT Port troubleshooting process …………………………………………....38
Figure 2-16

HDMI Troubleshooting process ……………………………………………..40

Figure 2-17

MIC troubleshooting process ……………………………………………….. 42

Figure 2-18

Thermal Module Troubleshooting………...…………………………………44

Figure 2-19

LAN Troubleshooting ………………………....………………………..........46

Tables
Table 2-1

Battery LED ....................................................................................................... 10

Table 2-2

DC-IN LED ........................................................................................................ 11

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

2.1

Troubleshooting Introduction

Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the computer is
causing the computer to malfunction. The FRUs covered are:
1. Display

5. Speaker

9. Camera

13. HDMI

2. Keyboard

6. Optical drive

10. 3in1 card

14. MIC

ports

7. Modem

11. HDD

15. Thermal

4. Touch Pad

8. Wireless LAN

12. CRT port

16. LAN

3. External USB

The Diagnostics Disk operations are described in Chapter 3. Detailed replacement
procedures are given in Chapter 4.
The following tools are necessary for implementing the troubleshooting procedures:
1. Diagnostics Disk (Repair and Sound Repair)
2. USB memory disk
3. Phillips screwdriver (2 mm)
4. 6mm nut driver (for the helix screw nuts on the rear ports for CPU door)
5. 2DD or 2HD formatted work disk for floppy disk drive testing
6. Cleaning kit for floppy disk drive troubleshooting
7. Cleaning kit for optical drive troubleshooting
8. Multimeter
9. External monitor
10. USB compatible keyboard
11. Multimedia sound system with line-in and line-out ports
12. Headphones
13. USB test module and USB cable
14. Music CD
15. MIC module and MIC line

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

2.2

Troubleshooting Flowchart

If you know the location of the malfunction, turn directly to the appropriate section of this
chapter. If the problem is unspecified, use the flowchart in Figure 2-1 as a guide for
determining which troubleshooting procedures to execute. Before performing any
troubleshooting procedures, verify the following:


Ask the user if a password is registered, if it is, ask him or her to enter the password.



Verify with the customer that Toshiba Windows 7 is installed on the hard disk.
Operating systems that were not preinstalled by Toshiba can cause the computer to
malfunction.



Make sure all optional equipment is removed from the computer.



Make sure the floppy disk drive, if installed, is empty. If no FDD module is installed,
you should use an external FDD to run the diagnostics tests

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

START

Connect the AC adapter to the DCIN socket

Is the DC-IN LED on?

Perform the Power Supply
Troubleshooting procedures
in section 2.3

Yes

Is the Battery LED on?

Perform the Power Supply
Troubleshooting procedures
in section 2.3

Yes

Turn the Power switch on
Yes

Is the Power On LED on?
Yes

Is the "Toshiba" logo message
display?

Perform the Power Supply
Troubleshooting procedures
in section 2.3

Yes

If the "password" message
displays, type the password, then
press Enter.
Is Toshiba Windows being
loaded?
Yes

Perform diagnostics
program. Run CM165.EXE
and select the HARD DISK
item.

A
Figure 2-1 Troubleshooting flowchart (1/2)

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

Does typed characters appear correctly?

Perform the Keyboard
Troubleshooting procedures
in section 2.6

Perform the FDD
Troubleshooting procedures
in section 2.5

Yes

After confirming which
diagnostics test has detected
an error, perform the
appropriate procedure as
outlined below.

Yes

Insert USB memory disk.
Then run the diagnostics test program.
Yes

Is the diagnostics test loaded?
Yes

Allow each test to perform
automatically

Is an error detected by any of the
diagnostics tests?

System is normal

End

Figure 2-1 Troubleshooting flowchart (2/2)
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
If the diagnostics program cannot detect an error, the problem may be intermittent. The test
program should be executed several times to isolate the problem. When a problem has been
located, perform the appropriate troubleshooting procedures as follows:
1. If an error is detected by the battery test, perform the Power Supply Troubleshooting
procedures in Section 2.3
2. If an error is detected by the display test, perform the Display Troubleshooting
procedures in Section 2.4
3. If an error is detected by the keyboard test, perform the Keyboard Troubleshooting
procedures in Section 2.5
4. If an error is detected by the TouchPad test, perform the TouchPad Troubleshooting
procedures in Section 2.7
5. If an error is detected by the audio beep test, perform the Speaker Troubleshooting
procedures in Section 2.8 and the Optical Drive Troubleshooting Procedures in
Section 2.9

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Other problems that are not covered by the diagnostics program may be discovered by a
user.
1. If an error is detected when using an external USB device, perform the External USB
Devices Troubleshooting procedures in Section 2.6
2. If an error is detected when using the speakers, perform the Speaker Troubleshooting
procedures in Section 2.8
3. If an error is detected when using the modem, perform the Modem Troubleshooting
procedures in Section 2.10
4. If an error is detected when using the Wireless LAN, perform the Wireless LAN
Troubleshooting procedures in Section 2.11
5. If an error is detected when using the HDMI TV, perform the HDMI TV
troubleshooting procedures in Section 2.16.
6. If an error is detected when using the MIC, perform the MIC troubleshooting
procedures in Section 2.17

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

2.3

Power Supply Troubleshooting

ST A R T

C heck P ower Supply Status
(P rocedure 1)

A re the D C -IN and
B attery LE D s lit?

R eplace adaptor / battery
(P rocedure 2)

Yes

R un diagnostic program
(P rocedure 4)

P erform internal connection
check
(P rocedure 5)

Yes

C heck power supply
connections
(P rocedure 3)

C an you turn the
com puter on?

A re the internal power
connections secure?

Yes

R eplace system board

END

Figure 2-2 Power Supply Troubleshooting Process

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
The power supply controls many functions and components. To determine if the power
supply is functioning properly, start with Procedure 1 and continue with the other Procedures
as instructed. The flowchart in Figure 2-2 gives a summary of the process. The procedures
described in this section are:
Procedure 1: Power status check
Procedure 2: Adaptor / battery replacement
Procedure 3: Power supply connection check
Procedure 4: Diagnostic check
Procedure 5: Internal connection check

Procedure 1

Power Status Check

The following LEDS indicate the power supply status:
Battery LED
DC-IN LED
The power supply controller displays the power supply status through the Battery and the DCIN LEDS as listed in the tables below.
Table 2-1 Battery LED
Battery State

LED colors

Definition

Charging

Red, solid on

Battery charging with AC.

White, solid on

Battery fully charged by AC

Red color off

Battery abnormal stop charging with AC
(Bad cell/ Overheated)

Discharging

Red, blinking

Battery within low state: 12 minutes
(LED on for 1 second remaining
every 4 seconds)
Red, blinking

Battery within critical low state: 3
(LED on for 1 second minutes remaining. The system is
protected and cannot be re-powered on
every 2 seconds)
without the AC power connected.
Red color off

Battery not in low or critical low state;
It’s in discharging state

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Table 2-2 DC-IN LED
AC-IN LED

Power supply status

Solid on

AC power exists (LED is solid White).

Off

No AC power exists.

To check the power supply status, install a battery pack and connect an AC adaptor to the
DC-IN port on the computer and to a power supply.
If the DC-IN LED or Battery LED is not lit, go to Procedure 2.

Procedure 2

Adaptor / battery replacement

A faulty adaptor may not supply power or may not charge the battery. Perform Check 1.
Check 1

Connect a new AC adaptor. If the problem is not resolved, go to Check 2.

Check 2

Insert a new battery. If the problem is still not resolved, go to Procedure 3.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

Procedure 3

Power supply connection check

The power supply wiring diagram is shown below:

AC adaptor cord
AC power cord
AC
adaptor

System
board

Battery

Any of the connectors may be disconnected. Perform Check 1.
Check 1

Disconnect the AC power cord from wall outlet. Check the power cable for
breaks. If the power cord is damaged, connect a new AC power cord. If there is
no damage, go to Check 2.

Check 2

Make sure the AC adaptor cord and AC power cord are firmly plugged into the
DC-IN socket, AC adaptor inlet and wall outlet. If these cables are connected
correctly, go to Check 3.

Check 3

Make sure that the DC-IN input port socket is firmly secured to the system board
of the computer.
 If the DC-IN input socket is loose, go to Procedure 5.
 If it is not loose, go to Check 4.

Check 4

Use a multi-meter to make sure that the AC adaptor output voltage is close to 19
V. If the output is several percent lower than 19 V, go to Check 5. If the output
is close to 19 V, go to Check 6.

Check 5

Connect a new AC adaptor or AC power cord.
 If the DC-IN LED does not light, go to Procedure 4.
 If the battery LED does not light, go to Check 6.

Check 6

Make sure the battery pack is installed in the computer correctly. If the battery is
properly installed and the battery LED still does not light, go to Procedure 4.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

Procedure 4

Diagnostic check

The power supply may not charge the battery pack. Perform the following procedures:
1. Reinstall the battery pack.
2. Attach the AC adaptor and turn on the power. If you cannot turn on the power, go to
Procedure 5.
3. Run the Diagnostic test following the procedures described in Chapter 3, Tests and
Diagnostics. If no problem is detected, the battery is functioning normally.
Procedure 5

Replacement check

The system board may be disconnected or damaged. Disassemble the computer following the
steps described in Chapter 4, Replacement Procedures. Check the connection between the AC
adaptor and the system board. After checking the connection, perform Check 1:
Check 1

Use a multi-meter to make sure that the fuses on the system board are not blown.
If a fuse is not blown, go to Check 2. If a fuse is blown, go to Check 3.

Check 2

Make sure that the battery cable is firmly connected to the system board. If it is
connected firmly, go to Check 3.

Check 3

The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.

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2 Troubleshooting Procedures

2.4

Display Troubleshooting

STA RT

P e r fo r m e x te r n a l d is p la y c h e c k
(P r o c e d u re 1 )

D o e s th e e x te r n a l
d is p la y f u n c tio n o k ?

No
P e r fo r m d ia g n o s tic c h e c k
( P ro c e d u r e 2 )
Y es

W a s a d is p la y
p ro b le m d e te c te d ?

D is p la y is n o t
f a u lty . C o n tin u e
tro u b le s h o o tin g re fe r to F ig u re 2 .1

Y es
P e r fo rm c o n n e c to r a n d
re p la c e m e n t c h e c k
( P ro c e d u r e 3 )

R e p la c e s y s te m b o a rd

END

Figure 2-3 Display troubleshooting process

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2 Troubleshooting Procedures

This section describes how to determine if the computer’s display is functioning properly.
The process is outlined in Figure 2-3. Start with Procedure 1 and continue with the other
procedures as instructed.
Procedure 1: External display check
Procedure 2: Diagnostic check
Procedure 3: Connector and replacement check

Procedure 1

External display check

Connect an external display to the computer’s external monitor port, and then boot the
computer. The computer automatically detects the external display.
If the external display works correctly, the internal LCD may be damaged. Go to Procedure 3.
If the external monitor appears to have the same problem as the internal monitor, the system
board may be damaged. Go to Procedure 2.

Procedure 2

Diagnostic check

The Display Test program is stored on the computer’s Diagnostics disk. This program checks
the display controller on the system board. Insert the Diagnostics disk in the computer’s
floppy disk drive, turn on the computer and run the test. Refer to Chapter 3, Tests and
Diagnostics for details.
If an error is detected, go to Procedure 3. If an error is not detected, the display is functioning
properly.

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2 Troubleshooting Procedures

Procedure 3

Connector and replacement check

The FL inverter board, LCD module, and system board are connected to the display circuits.
Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for
instructions on how to disassemble the computer and then perform the following checks:
Check 1

Make sure the DDR RAM module is seated properly. Test display again. If the
problem still exits, replace the DDR RAM module. If the problem still exists,
perform Check 2.

Check 2

Replace the FL inverter board with a new one and test display again. If the
problem still exists, perform Check 3.

Check 3

Replace the LCD module with a new one and test display again. If the problem
still exists, perform Check 4.

Check 4

Replace the LCD/FL cable with a new one and test display again. If the problem
still exists, perform Check 5.

Check 5

Replace the CPU with another of the same specifications. If the problem still
exists, perform Check 6.

Check 6

The system board may be damaged. Replace it with a new one.

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2 Troubleshooting Procedures

2.5

Keyboard Troubleshooting

STA RT

P e r f o r m e x te r n a l k e y b o a r d c h e c k
(P ro ce d u re 1 )

D o e s th e e x te r n a l
k e y b o a r d f u n c tio n o k ?

Y es
P e r f o r m d ia g n o s tic c h e c k
(P ro c e d u re 2 )

W a s a k e y b o a rd
p r o b le m d e te c te d ?

K e y b o a r d is n o t
f a u lty . C o n tin u e
tr o u b le s h o o tin g - r e f e r
to F ig u r e 2 .1

Y es
P e r f o r m c o n n e c to r a n d
r e p la c e m e n t c h e c k
(P ro c e d u re 3 )

R e p la c e s y s te m b o a r d

END

Figure 2-4 Keyboard troubleshooting process

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
To determine if the computer’s keyboard is functioning properly, perform the following
procedures. Figure 2-4 outlines the process. Start with Procedure 1 and continue with the
other procedures as instructed.
Procedure 1: External keyboard check
Procedure 2: Diagnostic check
Procedure 3: Connector and replacement check
Procedure 1

External keyboard check

Connect a USB keyboard to one of the computer’s USB ports, and then boot the computer.
The computer automatically detects the external keyboard.
If the external keyboard works correctly, the internal keyboard or its connections may be
faulty. Go to Procedure 2.
If the external keyboard appears to have the same problem as the internal keyboard, the
system board may be having some problem. Replace it with a new one and following the
instructions in Chapter 4.
Procedure 2

Diagnostic check

Run the test and Diagnostics Program, which will automatically execute the Keyboard Test.
Refer to Chapter 3, Tests and Diagnostics for more information on how to run the program.
If an error is located, go to Procedure 3. If an error does not occur, the keyboard is
functioning ok.
Procedure 3

Connector and replacement check

The keyboard and/or system board may be disconnected or damaged. Disassemble the
computer following the steps described in Chapter 4, Replacement Procedures and perform
the following checks.
Check 1

Make sure the keyboard cable is firmly connected to the system board.
If the connection is loose, reconnect firmly and repeat Procedure 2. If there is still
an error, go to Check 2.

Check 2

The keyboard may be damaged. Replace it with a new one following the
instructions in Chapter 4.
If the problem still exists, perform Check 3.

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2 Troubleshooting Procedures
Check 3

2.6

The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.

External USB Devices Troubleshooting

STA R T

P e r f o r m e x te r n a l d e v ic e a n d
c o n n e c tio n c h e c k
(P ro c ed u re 1 )

C heck U SB
p o rt
c o n n e c tio n

Y es

D o e s th e d e v ic e fu n c tio n
w h e n c o n n e c te d to a
d iffe re n t U S B p o rt?

D o e s a n a lte rn a tiv e U S B
d e v ic e fu n c tio n c o rre c tly ?

Y es

O r ig in a l U S B
d e v ic e is f a u lty

No
R e p la c e s y s te m b o a rd
(P ro c ed u re 2 )

EN D

Figure 2-5 External USB device troubleshooting process

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2 Troubleshooting Procedures

To determine if the computer’s external USB devices are functioning properly, perform the
following procedures. Figure 2-5 outlines the process. Start with Procedure 1 and continue as
instructed.
Procedure 1: External device and connection check
Procedure 2: Replace system board
Procedure 1

External device and connection check

The USB device may be damaged or the connection may be faulty. Perform Check 1.
Check 1

Make sure USB device cable is firmly plugged into one of the USB sockets. If the
cable is connected correctly, go to Check 2.

Check 2

Plug the USB device into another USB socket (there are three in all). If the USB
device still does not work, go to Check 4.
If the device functions correctly when connected to another USB port, go to
Check 3.

Check 3

Make sure that the USB socket is firmly secured to the system board of the
computer. If the malfunction remains, the system board or USB small board may
be damaged. Go to Procedure 2.

Check 4

Connect an alternative USB device to one of the computer’s USB ports, and then
boot the computer. The computer automatically detects the external device.
If the alternative USB device works correctly, the original device may be
damaged and should be replaced.
If the alternative USB device appears to have the same problem as the original
device, the system board or USB small board may be damaged. Go to Procedure
2.

Procedure 2

Replace system board

If the error persists, the system board or USB small board may be damaged. Replace it with a
new one following the instructions in Chapter 4.

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2 Troubleshooting Procedures

2.7

Touchpad Troubleshooting

START

TouchPad connection
check (Procedure 1)

TouchPad replacement
check (Procedure 2)

Replace system board

END

Figure 2-6 Touchpad troubleshooting process

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
To determine if the computer’s built-in TouchPad is functioning properly, perform the
following procedures. Figure 2-9 outlines the process. Start with Procedure 1 and continue as
instructed.
Procedure 1: TouchPad connection check
Procedure 2: TouchPad replacement check
Procedure 1

TouchPad connection check

The TouchPad is connected via the TouchPad FPC to the system board. Make sure the
TouchPad FPC cable is firmly connected to the TouchPad and system board. Refer to Chapter
4, Replacement Procedures, for instructions on how to disassemble the computer and then
perform the following checks.
If any of the connections are loose, reconnect firmly. If any of the connections is damaged, or
there is still an error, go to Procedure 2.
Procedure 2

TouchPad replacement check

The TouchPad unit or FPC may be defective or damaged. Replace each with a new one
following the steps in Chapter 4. If the FPC is still not functioning properly, replace the
system board with a new one following the steps in Chapter 4.

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2 Troubleshooting Procedures

2.8

Speaker Troubleshooting
START

Perform audio source test
(Procedure 1)

Do all sources have
same problem?

Speakers are not
faulty. Continue
troubleshooting see Figure 2-1

Yes

Perform earphone test
(Procedure 2)

Do earphones
function correctly?

Yes

Perform connection check
(Procedure 3)

Perform replacement
check
(Procedure 4)

Replace system board

END

Figure 2-7 Speaker troubleshooting process
To determine if the computer’s built-in speakers are functioning properly, perform the
following procedures. Figure 2-7 outlines the process. First adjust the speaker volume to an
appropriate level. Start with Procedure 1 and continue as instructed.

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2 Troubleshooting Procedures
Procedure 1: Audio source test
Procedure 2: Earphone test
Procedure 3: Connection check
Procedure 4: Replacement check
Procedure 1

Audio source test

Try different audio sources (e.g. an audio CD and digital music file) to determine whether the
fault is in the speaker system or not. If not all sources have sound problem, the problem is in
the source devices. If all have the same problem, continue with Procedure 2.
Procedure 2

Earphone test

Connect a set if earphones or external speakers. If these function correctly, go to Procedure 3.
If they do not function correctly, the system board may be defective or damaged. Replace it
with a new one.
Procedure 3

Connection check

Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures and make sure the speaker cable is firmly connected to the audio board. If the
stereo speakers are still not functioning properly, go to Procedure 4.
Procedure 4

Replacement check

If the stereo speakers don't sound properly, the stereo speakers may be defective or damaged.
Replace them with new ones. If the stereo speakers still do not work properly, try replacing in
turn the audio board and system board.

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2 Troubleshooting Procedures

2.9

Optical drive troubleshooting

START

Perform audio CD check
(Procedure 1)

Audio CD functions ok?

Perform drivecleaning check
(Procedure 2)

Yes

Perform software check
(Procedure 3)

Perform diagnostic test
(Procedure 4)

Perform connection and
replacement check
(Procedure 5)

Replace system board

END

Figure 2-8 Optical drive troubleshooting process
This section describes how to determine if the computer’s internal optical drive is functioning
properly. The Satellite A350, SATEGO A350, EQUIUM A350 Series Maintenance Manual
module bays can accommodate the following optical drives:
DVD SuperMulti supporting +-R Double Rayer
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2 Troubleshooting Procedures

Figure 2-8 outlines the process. Perform the steps below starting with Procedure 1 and
continue with the other procedures as required.

Procedure 1: Audio CD test
Procedure 2: Drive cleaning check
Procedure 3: Software check
Procedure 4: Diagnostic test
Procedure 5: Connection and replacement check
Procedure 1

Audio CD check

First, insert an audio CD into the CD/DVD drive. If it works, the problem is not with the
drive. Go to Procedure 3. If the audio CD does not work, go to Procedure 2. If the CD/DVD
LED on the front panel does not light when the disc is played and the drive gives no response,
go straight to Procedure 3.
Procedure 2

Drive cleaning check

Insert a CD/DVD drive-cleaning disk into the drive clean according to the drive-cleaning
product instructions. If the problem persists, go to Procedure 3.
Procedure 3

Software check

Ensure that the appropriate driver has been installed on the computer for the CD/DVD drive.
Procedure 4

Diagnostic test

The audio test program stored in the Diagnostics Disk will test the drive’s ability to play an
audio CD. See Chapter 3 for details.
If any errors occur while executing the diagnostic program, go to Procedure 5.

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2 Troubleshooting Procedures

Procedure 5

Connection check and replacement check

The optical drive connects to the system board. The drive may be disconnected, or the drive
or system board may be damaged. Disassemble the computer following the steps described in
Chapter 4, Replacement Procedures, and perform the following checks:

Check 1

Make sure the drive is firmly connected to the system board. If the connection is
good and there is still an error, go to Check 2.

Check 2

The drive or drive cable may be defective or damaged. Replace each with a new
one following the steps in Chapter 4, Replacement Procedures. If the drive is still
not functioning properly, perform Check 3.

Check 3

The system board may be damaged. Replace it with new one following the
instructions in Chapter 4, Replacement Procedures.

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2 Troubleshooting Procedures

2.10 Modem Troubleshooting

START

Perform telephone line
connection check
(Procedure 1)

Computer unable to
detect telephone signal?

Yes

Check / replace
telephone line and
connections

Perform connection check
(Procedure 2)

Perform replacement
check
(Procedure 3)

Replace system board

END

Figure 2-9 Modem troubleshooting process

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
This section describes how to determine if the computer's modem is functioning properly.
Figure 2-9 outlines the process. Perform the steps below starting with Procedure 1 and
continuing with the other procedures as required.

Procedure 1: Telephone line connection check
Procedure 2: Modem card connection check
Procedure 3: Modem card replacement check
Procedure 1

Telephone line connection check

The telephone cable may be damaged or the connections may be loose. Attempt to connect
the computer to a network through using the modem. If the modem does not function at all,
go to Procedure 3. If the attempt fails because the computer detects no telephone signal, the
fault may be in the telephone cable, the wall socket or the modem port. Perform Check 1:

Check 1

Make sure telephone cable is firmly plugged into both the telephone wall socket
and the modem port of the computer. If the cable is connected correctly, go to
Check 2.

Check 2

Make sure the modem port is firmly secured to the system board of the computer.
If the malfunction remains, go to Check 3.

Check 3

The telephone cable may be damaged. Replace with a good cable. If the
malfunction remains, go to Procedure 2.

Procedure 2

Modem card connection check

Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures and ensure that the modem card is well connected to the system board. If the
problem persists, perform Procedure 3.
Procedure 3

Modem replacement check

The modem card or RJ-11 jack may be faulty. Try replacing them. If the problem persists, the
system board may be defective or damaged. Replace the System Board with a new one
following the steps in Chapter 4, Replacement Procedures.

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2 Troubleshooting Procedures

2.11 Wireless LAN Troubleshooting

START

Perform diagnostic test
(Procedure 1)

Was a wireless LAN problem delected?

Wireless LAN system
is not faulty. Continue
troubleshooting - refer
to Figure 2.1

Yes
Perform connector and replacement check
(Procedure 2)

Replace wireless LAN antenna/unit

Replace system board

END

Figure 2-10 Wireless LAN troubleshooting process
The wireless LAN antenna wire, wireless LAN unit or system board may each be the source
of a wireless LAN fault. Any of these components may be damaged. To determine if the
computer’s wireless LAN system is functioning properly, perform the following procedures.
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2 Troubleshooting Procedures
Figure 2-10 outlines the process. Start with Procedure 1 and continue with the other
procedures as instructed.
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1

Diagnostic test

Run the Diagnostic Program, which will automatically execute the wireless LAN test. Test
and Diagnostic for more information on the program.
If an error is located, go to Procedure 2. If an error is not located, the wireless LAN system is
functioning properly.

Procedure 2

Connector and replacement check

The wireless LAN antenna, wireless LAN unit or system board may be disconnected or
damaged. Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures, and perform the following checks.

Check 1

Make sure that the wireless LAN antenna is firmly connected to the Wireless
LAN module (refer to Chapter 4 for instructions) and that the wireless LAN
module is securely slotted into the system board. If the problem persists, go to
Check 2.

Check 2

Check that the wireless communication switch is turned to “On”, and then make
sure that the wireless communication LED on the front panel is light. If the LED
is light but the wireless LAN function is still faulty, the antenna may be damaged.
Replace with a new antenna following the steps in Chapter 4, Replacement
Procedures. If the problem persists, or if the wireless LAN LED is not light when
the wireless communication switch is turned to “On”, go to Check 3.

Check 3

The wireless LAN unit may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 4.

Check 4

The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.

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2 Troubleshooting Procedures

2.12 Camera Troubleshooting

Figure 2-11 Camera troubleshooting process

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2 Troubleshooting Procedures
The Camera board or system board may be the reason of a Camera fault. Either of these two
components may be damaged. To determine if the computer’s Camera is functioning
properly, perform the following procedures. Figure 2-11 outlines the process. Start with
Procedure 1 and continue with the other procedures as instructed.
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1

Diagnostic test

Run the functioning Program in windows, which will display the Camera test result.
If tests and diagnostics result abnormal go to Procedure 2. If an error is not located, the
Camera system is functioning properly.

Procedure 2

Connector and replacement check

The Camera board or system board may be disconnected or damaged. Disassemble the
computer following the steps described in Chapter 4, Replacement Procedures, and perform
the following checks.

Check 1

Make sure that the Camera board FFC is securely slotted into the system board. If
the problem persists, go to Check 2.

Check 2

The Camera board may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 3.

Check 3

The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

2.13 3 in 1 card Troubleshooting

START

Perform 3 in 1 CARD test
(Procedure 1)

Do errors occur during 3
IN 1 CARD test?

3 IN 1 unit is not
faulty.

Yes

Perform 3 IN 1 card socket
replacement check
(Procedure 2)

Replace system board

END

Figure 2-12 3in 1 card troubleshooting process

This section describes how to determine if the Bridge media assemble card player is
functioning properly. The process is summarized in Figure 2-12. Perform the steps below
starting with Procedure 1 and continuing with the other procedures as required.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Procedure 1: Bridge media assemble card test
Procedure 2: Express socket replacement check
Procedure 1

Bridge media assemble card test

The Bridge media assemble card test card contains a Bridge media assemble card test
program. Ensure the card in fully inserted into the socket before running the program.
If an error occurs during the Bridge media assemble card test, perform Procedure 2. If no
error occurs, it is likely that the original Bridge media assemble card was faulty.
Procedure 2

Bridge media assemble card socket replacement check

The Bridge media assemble card socket may be damaged or defective, for instance the socket
pins can be bent. Disassemble the computer following the steps described in Chapter 4,
Replacement Procedures If the problem persists, the system board may be defective or
damaged. Replace the system board with a new one following the steps in Chapter 4.

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2 Troubleshooting Procedures

2.14 HDD Troubleshooting

Figure 2-13 HDD troubleshooting process

The HDD or system board may be the reason of a HDD fault. Either of these two components
may be damaged. To determine if the computer’s HDD is functioning properly, perform the
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
following procedures. Figure 2-13 outlines the process. Start with Procedure 1 and continue
with the other procedures as instructed.
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1

Diagnostic test

Run the Diagnostic Program, which will automatically execute the HDD R/W test. Refer to
Chapter 3, Tests and Diagnostics for more information on the program.
If an error is located, go to Procedure 2. If an error is not located, the HDD function is
functioning properly.

Procedure 2

Connector and replacement check

The HDD module or system board may be disconnected or damaged. Disassemble the
computer following the steps described in Chapter 4, Replacement Procedures, and perform
the following checks.

Check 1

Make sure that the HDD module is securely slotted into the system board. If the
problem persists, go to Check 2.

Check 2

The HDD module may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 3.

Check 3

The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

2.15 CRT Troubleshooting
ST A R T

P er f o r m C R T c o n n ec ti o n
c h ec k
( P r o c ed u r e 1 )

D o es r ep l ac em en t
C R T c ab l e
f u n c ti o n p r o p er l y ?

Y es

R ep l ac e C R T
c ab l e

Y es

U se d i f f er en t
C R T set

N o

P er f o r m C R T set c h ec k
( P r o c ed u r e 2 )

C R T f u n cti o n i n g o k ?

N O

C h ec k C R T
Port
c o n n ec ti o n

R e p l ac e sy st e m b o a r d

EN D

Figure 2-14 CRT Troubleshooting Process

To determine if the computer’s CRT port is functioning properly, perform the following
procedures. Figure 2-14 outlines the process. Start with Procedure 1 and continue as
instructed.
Procedure 1: CRT connection check
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Procedure 2: CRT set check
Procedure 1

CRT connection check

The CRT cable may be damaged or the connections may be loose. Perform Check 1:
Check 1

Make sure CRT cable is firmly plugged into both the CRT set and the CRT port
of the computer. If the cable is connected correctly, go to Check 2.

Check 2

Make sure the CRT port is firmly secured to the system board of the computer. If
the malfunction remains, go to Check 3.

Check 3

The CRT cable may be damaged. Replace with a good cable. If the malfunction
remains, go to Procedure 2.

Procedure 2

CRT set check

The CRT set may be faulty. Perform Check 1:
Check 1

Try using the set for CRT reception. If it does not work, the set may be damaged.
If the set does work, perform Check 2.

Check 2

Try connecting a different CRT to the computer. If the replacement CRT works,
the original set may be damaged. If the replacement set does not work the system
board may be damaged. Replace it with a new one following the instructions in
Chapter 4.

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2 Troubleshooting Procedures

2.16 HDMI Troubleshooting
STA RT

P e rfo rm H D M I c o n n e c tio n
check
(P ro c e d u re 1 )

D o e s re p la c e m e n t H D M I
c a b le
fu n c tio n p ro p e rly ?

Y es

R e p la c e H D M I
c a b le

Y es

U s e d iffe re n t
H D M I set

No
P e rfo rm H D M I s e t c h e c k
(P ro c e d u re 2 )

H D M I fu n c tio n in g o k ?

No
R e p la c e s y s te m b o a rd

END

Figure 2-15 HDMI troubleshooting process

To determine if the computer’s HDMI port is functioning properly, perform the following
procedures. Figure 2-15 outlines the process. Start with Procedure 1 and continue as
instructed.
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Procedure 1: HDMI connection check
Procedure 2: HDMI set check
Procedure 1

HDMI connection check

The CRT cable may be damaged or the connections may be loose. Perform Check 1:
Check 1

Make sure HDMI cable is firmly plugged into both the CRT set and the CRT port
of the computer. If the cable is connected correctly, go to Check 2.

Check 2

Make sure the HDMI port is firmly secured to the system board of the computer.
If the malfunction remains, go to Check 3.

Check 3

The HDMI cable may be damaged. Replace with a good cable. If the malfunction
remains, go to Procedure 2.

Procedure 2

HDMI set check

The TV set may be faulty. Perform Check 1:
Check 1

Try using the set for television reception. If it does not work, the set may be
damaged. If the set does work, perform Check 2.

Check 2

Try connecting a different television to the computer. If the replacement
television works, the original set may be damaged. If the replacement set does not
work, the system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

2.17 MIC Troubleshooting

Figure 2-16 MIC troubleshooting process
The MIC line or system board may be the reason of a MIC fault. Either of these two
components may be damaged. To determine if the computer’s MIC is functioning properly,
perform the following procedures. Figure 2-16 outlines the process. Start with Procedure 1
and continue with the other procedures as instructed.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1

Diagnostic test

Run the functioning Program on Windows model, which will display the MIC test result.
If tests and diagnostics result abnormal go to Procedure 2. If an error is not located, the MIC
module functioning is properly.

Procedure 2

Connector and replacement check

The MIC line or system board may be disconnected or damaged. Disassemble the computer
following the steps described in Chapter 4, Replacement Procedures, and perform the
following checks.

Check 1

Make sure that the MIC line is securely slotted into the system board. If the
problem remains, go to Check 2.

Check 2

The MIC line may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 3.

Check 3

The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

2.18 Thermal Module troubleshooting

START

CPU replacement check
(Procedure 1)

Thermal module
replacement check
(Procedure 2)

Replace system board

END

Figure 2-17 Thermal Module troubleshooting process

To determine if the computer’s built-in Thermal Module is functioning properly, perform the
following procedures. Figure 2-17 outlines the process. Start with Procedure 1 and continue
as instructed.
Procedure 1: CPU replacement check
Procedure 2: Thermal Module replacement check
Procedure 3: System board replacement check
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Procedure 1

CPU replacement check

Refer to Chapter 4, Replacement Procedures, for instructions on how to disassemble the
computer and then perform the following checks.
If there is still an error after replacement CPU, go to Procedure 2.
Procedure 2

Thermal Module replacement check

System board replacement check

Replace the system board with a new one following the steps in Chapter 4.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures

2.19 LAN troubleshooting

ST A R T

P e rfo rm L A N c a b le
c o n n e c tio n c h e c k
(P ro c e d u re 1 )

D o e s re p la c e m e n t
L A N c a b le
fu n c tio n p ro p e rly ?

R e p la c e L A N
c a b le

N o

U s e d iffe re n t
L A N p o rt

Y es

P e rfo rm L A N p o rt c h e c k
(P ro c e d u re 2 )

L A N p o rt fu n c tio n in g o k ?

Y es

R e p la c e s y s te m b o a rd

E N D

Figure 2-18 LAN troubleshooting process
To determine if the computer’s built-in LAN is functioning properly, perform the following
procedures. Figure 2-18 outlines the process. Start with Procedure 1 and continue as
instructed.
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

2 Troubleshooting Procedures
Procedure 1: LAN connection check
Procedure 2: LAN port check
Procedure 1

LAN connection check

The LAN cable may be damaged or the connections may be loose. Perform Check 1:
Check 1

Make sure LAN cable is firmly plugged into both the LAN set and the LAN port
of the computer. If the cable is connected correctly, go to Check 2.

Check 2

The LAN cable may be damaged. Replace with a good cable. If the malfunction
remains, go to Procedure 2.

Procedure 2

LAN port check

The LAN set may be faulty. Perform Check 1:
Check 1

Try connecting a different LAN port to the computer. If the replacement LAN
works, the original set may be damaged. If the replacement set does not work, the
system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.

Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual

3. Tests and Diagnostics

Chapter 3
Tests and Diagnostics

3. Tests and Diagnostics
Contents

3.1 The Diagnostic Test .................................................................................................................. 4
3.2 Executing the Diagnostic Test................................................................................................... 5
3.3

Display Configuration ......................................................................................................... 9

3.4 Beep sound test........................................................................................................................ 10
3.5 Fan ON/OFF Test.................................................................................................................... 11

........................................................................................................................................... 12
3.6 Main Battery Charge Test ....................................................................................................... 13
3. 7 FDD Test ................................................................................................................................ 14
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............................................................................................................................... 24
3.14 RTC Test ............................................................................................................................... 27
3.15 Read 1394 GUID................................................................................................................... 28
3.16 Speaker EQ(Equalizer Quality factor) Type Check&Re-Write ............................................ 29
3.17 Sensor Button Test ................................................................................................................ 29
3.18

Front Edge Logo check ..................................................................................................... 30

3. Tests and Diagnostics
3.19 1st HDD Test ......................................................................................................................... 33
3.19

2nd HDD Test .................................................................................................................... 35

3.21 Read DMI.............................................................................................................................. 39
3.22 Write DMI............................................................................................................................. 39

3. Tests and Diagnostics

3.1 The Diagnostic Test
This chapter explains how to use the Test & Diagnostic program to test the functions of the
(Base on Los Angeles 10A+/10AG+/10AL+ T&D version 1.2) hardware modules. The Test &
Diagnostic Program is stored on the T&D diskettes. The program consists of a series of tests that
run automatically when the Diagnostics Program items are selected and executed.
NOTES: To start the diagnostics, follow these steps
1. Check all cables for loose connections.
2. Exit this program when you are at Main Menu.
The TEST & DIAGNOSTIC PROGRAM contains the following functional tests:





















CONFIG CHECK TEST
Beep sound TEST
FAN ON/OFF TEST
MAIN BATTERY CHARGE TEST
FDD TEST
Memory check
KEYBOARD TEST
MOUSE(PAD) TEST
LCD PIXELS MODE TEST
MAGNETIC SWITCH TEST
LAN TEST
RTC TEST
IEEE1394 CODE TEST
Speaker EQ Check&Rewrite
Button Test
Front Edge logo Check
1st HDD Test
2nd HDD Test
RDMI Test
WDMI Test

You will need the following equipment to perform some of the Diagnostic test programs.
 The diagnostics USB disk
 A formatted working diskette for the floppy disk drive test (Floppy Disk Drive Test)
 A LAN loopback

3. Tests and Diagnostics

3.2 Executing the Diagnostic Test
Free_DOS is required to run the DIAGNOSTICS PROGRAM. To start the DIAGNOSTIC
PROGRAM, follow these steps:
Insert the diagnostics USB disk drive and turn on the computer. (The diagnostics diskette
contains the Free-DOS boot files.) And then follow the instructions for T&D program
installed in USB driver)
The T&D Program can run single test by you press corresponsive English letter of test item, and
it also asks you if you like to copy test log file to USB disk as reference at the end of test(s).
The test list is as the following:
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
L.
M.
N.
O.
P.
Q.
R.
S.
T.

CONFIG CHECK TEST
Beep sound TEST
FAN ON/OFF TEST
MAIN BATTERY Charge TEST
FDD TEST
Memory check
KEYBOARD TEST
MOUSE (PAD) TEST
LCD PIXELS MODE TEST
MAGNETIC Switch TEST
LAN TEST
RTC TEST
IEEE1394 CODE TEST
SPEAKER EQ CHECK TEST
Button Test
Front Edge logo Check
1st HDD Test
2nd HDD Test
RDMI Test
WDMI Test

3. Tests and Diagnostics
The below display will show up at the beginning of T&D program

If the test result passes, the following display will show up:

3. Tests and Diagnostics
If an error is detected and a test fails, the following message displays:

Then press any key for next actions – the below display presented if copying test log file
onto diskette is necessary. This action will be executed when “Y” key pressed.

3. Tests and Diagnostics

It will skip this process if “N” key pressed.
And then it will check if it’s necessary to leave this program. Program will quit when “Y”
key pressed and it will go back main menu for next test if “N” key pressed.

3.3 Display configuration

3.3

3 Tests and Diagnostics

Display Configuration

This Item will show the unit configuration. It includes:


CPU (CPU type)



DDRAM SIZE



Panel ID



HDD1 type & capacity (Vendor ID. Model .Firmware)



HDD2 type & capacity (Vendor ID. Model .Firmware)



VRAM size / VGA CHIP TYPE



Battery cell (3cell; 6cell; 9cell)



Wireless type



LAN Type



1394



Bluetooth



SKUID

The screen should display as below:

3. Tests and Diagnostics

3.4 Beep sound test
The beep sound test allows the user to aurally confirm the speaker functions. And the speaker
will send out music during test.
NOTE: Remember to tune up the volume as “Maximum” before this test starts.

The screen should display as below, indicating whether the test is passed or failed after the
question.

3 Tests and Diagnostics

3.5 Fan ON/OFF Test
The fan test allows the user to test aurally whether the fan is working. And follow the below
procedures for this test:


The computer will let the fan be “ON” after any key pressed. Feel the wind or
listen the rotating sound to check whether the fan is working or not.

NOTE: Remember to approach fan outlet that is near right side of unit whether fan is
“ON”.


The computer will stop the fan working after any key pressed. Feel the wind or
listen the sound to check if the fan is “OFF”.

The screen should display as below, indicating whether the test is passed or failed after the
question.

3. Tests and Diagnostics



After Press “Y”, computer will auto test FAN RPM, and it will auto check.

The screen will show below picture, if FAN RPM check is OK;

If FAN RPM check is NG, it will show as below:

3. Tests and Diagnostics

3.6 Main Battery Charge Test
NOTE: The AC adaptor should be connected to successfully run this test
1.>. 90W with 19V DC for UMA SKU
2.>- 120W with 19V DC for discrete SKU

This test shows and measures the main battery:


Battery type (Lion)



Manufacturer (Sanyo/Panasonic/Sony)



Remain charge capacity (0 ~ 100%)



Charge function (PASS/FAIL)
- “Battery Is Full” showed when “remain charge capacities” is 100%

The screen should display as below, if the charge function is OK, will show:.

If the charge function is NG, the screen will display as:

3. Tests and Diagnostics

3.7 Main Battery Change Test

3. 7 FDD Test
NOTE: Before running the FDD test, prepare a formatted work diskette (1.44 MB).
Remove the diagnostics diskette and insert the work diskette into the FDD. The contents of
the floppy diskette maybe erased.
The Floppy Disk Test includes three subtests of the:
1. Sequential seek/verify function (Range: Track 0 ~ 79)
2. Funnel code seek/verify function (Range: Track 0 ~ 79)
3. Write/Read/Compare pattern function (Range: Track 75 ~ 79)
NOTE: The write-protected device of this formatted diskette should be “Disable”.

The subtests run automatically.

NOTE: Press “Esc” key can skip the current subtest.

The screen should display as below, indicating whether the subtests pass or fail when finished.

3. Tests and Diagnostics

3.8

Memory check

This test will check if the computer’s Memory Frequency and Size is correct in every slot.
Before Memory test start, you should choice the below item:
1. Memory Read test
2. Memory Write test
3. Memory Read & Write test
4. Memory INFO test

3 Tests and Diagnostics

When you execute this test, after you press the related number, the test picture will show as
below:
Memory Read Test

3. Tests and Diagnostics
Memory Write Test

Memory Read & Write Test

3 Tests and Diagnostics
Memory Info Test

3. 9 Keyboard Test
The keyboard test checks the all keys function.
NOTE: The Num Lock and the Overlay mode must be off to execute the keyboard test.

Before keyboard test starts, the keyboard matrix code should be chosen as below display:
1. S (US, for America)
2. J (Japan, for Japan)
3. K(UK, for United Kingdom)
When you execute this test, the keyboard layout is drawn on the display. When any key is

3. Tests and Diagnostics
pressed, the corresponding key on the screen changes to black as shown below.
It will indicate whether the sub test is passed or failed after the question.
US Keyboard

Japan keyboard
NOTE: The “Fn” key cannot be tested in the keyboard test.

To determine whether the “Fn” key is working correctly, press “Fn+F6
” keys to check if LCD display brightness change gradually.

” or “Fn+F7

3 Tests and Diagnostics
UK keyboard

3.10 Mouse (Pad) Test
The Mouse test allows the user to select and assign values to the following, using the Touch Pad
or “Tab” key to move between selections:
1.

Mouse Speed (on a scale from slow to fast)

Acceleration (Off, Low, Medium, High)

Button Assignments (Left + Right / Right button, either Unassigned or Drag
Lock)

Swap Buttons (Left /Right)

NOTE: The Touch Pad test cannot be used to test an external USB mouse.

3. Tests and Diagnostics
The Touch Pad button subtest allows users to test their Touch Pad buttons. If the buttons are
clicked, the cursors should appear in the corresponding box of the button figure that is displayed
on the screen as below.

After checking T/Pad buttons and cursor’s function, use “Tab” key or use T/Pad cursor to click
the “OK” column will end this test.
It will indicate whether the subtests pass or fail after three questions.
NOTE: The above figure has three compartments although the Touch Pad installed may
only have two buttons. In this case, the central compartment in the figure does not
correspond to any button.

3.11 LCD Pixels Mode Test
This LCD pixels mode test checks whether video display is fine.
This test includes two modes of the test:
1. Text Mode
- including 40*25 (16 colors) and 80*25 (2/16colors).
2. VGA Mode

3. Tests and Diagnostics
- including 320*200 (4/16/256 colors), 640*200 (2/16 colors), 640*350 (2/16 colors),
640*480 (2/16/256 colors), 800*600 (256 colors) and 1024*768 (256 colors).
The screen should display as below, indicating whether the test is passed or failed after the
question.

3.12 Magnetic Switch Test
The Magnetic switch test checks the Magnetic function of the unit. When LCD cover closed, the
Magnetic should enable to turn off the display.
Follow below steps to run this test:
1. Close the LCD cover.
2. Open the LCD.
Then it will indicate whether the test is passed or failed.
1>. If the Magnetic switch test fail, it will show below display:

3. Tests and Diagnostics

2>. If the Magnetic switch test pass, it will show below display:

3. Tests and Diagnostics

3.13 LAN Test
The LAN test checks the LAN full-duplex environment.
NOTE: LAN loopback needs to plug in before test begins.

And LAN information will show on the test screen:



IO Base – Port: A000H



IRQ – BH, it’s “IRQ B”.



Node – it is “MAC Address”.



Line Speed – 1000Mbps or 100Mbps or 10 Mbps.

3. Tests and Diagnostics


Bus ID – it’s “14”.

The LAN test includes three subtests of the:
1. Speed1000
2. Speed100
3. Speed10
The subtests run automatically.

The screen should display as below, indicating whether the subtests pass or fail when finished.

3. Tests and Diagnostics

If an error is detected and a test fails, the following message displays:

3. Tests and Diagnostics

3.14 RTC Test
Checks the computer’s RTC (Real Time Clock) and calendar functions by comparing the DOS
and CMOS values.
The test runs automatically.
The screen should display as below, indicating whether the test is passed or failed when finished.

3. Tests and Diagnostics

3.15 Read 1394 GUID
This test will check if the computer’s EEPROM 1394GUID code is correct.
NOTE: Must open the RAM Door to see RAM connector GUID bar code before test item
begins. LC_LA don’t support this function

The figure below will be displayed:

3. Tests and Diagnostics

3.16 Speaker EQ(Equalizer Quality factor) Type Check&Re-Write
This test will check if the computer’s EEPROM EQ type is correct.
The EQ Type test includes two subtests of the:
1. Read EQ Type from EEPROM
2. Re-Write EQ Type to EEPROM
NOTE: To execute this test, you must select speaker type (Harman or No brand).
LC_LA only support No brand mode.

The figure below will be displayed:

3.17 Sensor Button Test

NOTE: LC_LA don’t support this function.

3. Tests and Diagnostics

The Sensor button test allows the user to manually test each of Sensor button
buttons.

Press each of the buttons on the front panel in turn. A yellow bar will appear on the relevant
section of the figure if the button passes the test.
Press ESC to quit the test.

3.18 Front Edge Logo check
NOTE: LC_LA don’t support this function.
Because this Model have Front Edge Logo, must set the Front Edge Logo if the unit has this logo,
if you select this item, the figure below will be displayed:

3. Tests and Diagnostics

Please check the units whether have the Front Edge Logo:
If have the logo, please key 1 to set the Front Edge Logo.
If not have the logo, please key 2 to disable the Front Edge Logo.
Please read the notice to check the function is enabling or be disable in BIOS setup menu.
Restart the computer after you change BIOS setting of this function every time.

Notice: Check logo LED on/off function.
1. If we select “2” to disable the Front Edge logo function by program, there haven’t the item
of Illumination LED in BIOS Menu, the picture likes below.

3. Tests and Diagnostics

2. If we select “1” to enable the Front Edge logo function by program, There have the item of
Illumination LED in BIOS Menu.

2.1 Select enable to let the Front Edge logo item in enable mode (show as below picture),
and then restart the machine, the Front Edge Logo Led will be light.

3. Tests and Diagnostics

3.19 1st HDD Test
The HDD test allows the user to verify the 1st HDD ok or not. First, please select HDD test
method, Screen would display as below:

After you select the method, then input password: “hard disk”, if input password is Right, the
screen would display as below:

3. Tests and Diagnostics
If input password is wrong, the screen would display as below:

The screen will display as below picture to show the subtest is passed or failed when finished:
If it is show the picture as below, it means HDD function is OK

3. Tests and Diagnostics

If the picture shows as below, it means he HDD function is NG

3.19 2nd HDD Test
NOTE: LC_LA don’t support this function.

The HDD test allows the user to verify the 2nd HDD ok or not. It will show the below picture,
and user must select whether it has 2nd HDD.

3. Tests and Diagnostics

If you second HDD, please press “Y”, then computer will request you select HDD test method,
Choice HDD test method, Screen would display as below:

After you select the method, then input password: “hard disk”, if input password is Right, the

3. Tests and Diagnostics
screen would display as below:

If input password is wrong, the screen would display as below:

The screen will display as below picture to show the subtest is passed or failed when finished:
If it is show the picture as below, it means HDD function is OK

3. Tests and Diagnostics

If the picture shows as below, it means he HDD function is NG

3. Tests and Diagnostics

3.21 Read DMI
Compal write Toshiba Part No (version), Toshiba Serial No (Serial No), Product Name, OEM
string and UUID, If you want to double check the DMI data, please select Read DMI item, the
figure below will be displayed:

3.22 Write DMI
When you want to write DMI data, please select which data you want to write, the figure below
will be displayed:
1. Write OME string (64)

3. Tests and Diagnostics
2. Write Version (32)
3. Write Serial (32)
4. Write Product (32)

After write OK, you should reboot the system that can make the setting effective, or you can
write next data before reboot system, the figure below will displayed:

3. Tests and Diagnostics

NOTE: should input correct DMI data, and should reboot the system that can make the
setting effective.

Chapter 4
Replacement Procedures

4 Replacement Procedures

Chapter 4
4.1

Contents

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 ....................................................................................... 4-12

4.4

Memory ................................................................................................................ 4-13
Removing the Optional Memory.................................................................. 4-13
Installing the Optional Memory ................................................................... 4-14

4.5

WLAN Card ......................................................................................................... 4-15
Removing the WLAN Card.......................................................................... 4-15
Installing the WLAN Card ........................................................................... 4-15

4.6

Modem Card (BTO) ............................................................................................. 4-16
Removing the Modem Card ......................................................................... 4-16
Installing the Modem Card........................................................................... 4-16

4.7

ODD ..................................................................................................................... 4-17
Removing the ODD Bay Module................................................................. 4-17
Installing the ODD Bay Module .................................................................. 4-18

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-ii

4 Replacement Procedures
Disassembling the ODD Drive..................................................................... 4-18
Assembling the ODD Drive ......................................................................... 4-19
4.8

Keyboard Cover and Keyboard............................................................................ 4-20
Removing the Keyboard Cover and Keyboard ............................................ 4-20
Installing the keyboard Cover and Keyboard............................................... 4-22

4.9

Logic Upper Assembly......................................................................................... 4-23
Removing the Logic Upper Assembly ......................................................... 4-23
Installing the Logic Upper Assembly .......................................................... 4-24

4.10

Power Board......................................................................................................... 4-25
Removing the Power Board ......................................................................... 4-25
Installing the power switch board ................................................................ 4-25

4.11

Speakers ............................................................................................................... 4-26
Removing the Speakers................................................................................ 4-26
Installing the Speakers ................................................................................. 4-26

4.12

Touch Pad Bracket ............................................................................................... 4-27
Removing the Touch Pad Bracket................................................................ 4-27
Installing the Touch Pad Bracket ................................................................. 4-27

4.13

Thermal Fan ......................................................................................................... 4-28
Removing the Thermal Fan.......................................................................... 4-28
Installing the Thermal Fan ........................................................................... 4-28

4.14

Motherboard ......................................................................................................... 4-29
Removing the Motherboard ......................................................................... 4-29
Installing the Motherboard........................................................................... 4-31

4.15

CPU and Thermal Module ................................................................................... 4-33
Removing CPU and Thermal Module.......................................................... 4-33
Installing CPU and Thermal Module ........................................................... 4-35

4.16

Display Assembly ................................................................................................ 4-37
Removing the Display Assembly................................................................. 4-37
Installing the Display Assembly .................................................................. 4-38

4.17

LCD Bezel Assembly........................................................................................... 4-39
Removing the LCD Bezel Assembly ........................................................... 4-39
Installing the Display Mask ......................................................................... 4-40

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-iii

4 Replacement Procedures
4.18

LCD Module and Inverter Board ......................................................................... 4-43
Removing the LCD Module and Inverter Board.......................................... 4-43
Installing the LCD Module and Inverter Board ........................................... 4-46

4.19

Camera (BTO)...................................................................................................... 4-47
Removing the Camera .................................................................................. 4-47
Installing the Camera ................................................................................... 4-47

4.20

Hinge Saddle ........................................................................................................ 4-48
Removing the Hinge Saddle......................................................................... 4-48
Installing the Hinge Saddle .......................................................................... 4-48

4.21

USB Board ........................................................................................................... 4-49
Removing the USB Board............................................................................ 4-49
Installing the USB Board ............................................................................. 4-49

4.22

RJ11 Jack.............................................................................................................. 4-50
Removing the RJ11 Jack .............................................................................. 4-50
Installing the RJ11 Jack ............................................................................... 4-50

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-iv

4 Replacement Procedures
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............................................................................. 4-13

Figure 4.5

Removing the RAM from connector ........................................................... 4-14

Figure 4.6

Removing the WLAN card .......................................................................... 4-15

Figure 4.7

Removing the modem card .......................................................................... 4-16

Figure 4.8

Removing the ODD Bay module ................................................................. 4-17

Figure 4.9

Removing the bracket from the ODD drive................................................. 4-18

Figure 4.10

Removing the keyboard cover ..................................................................... 4-20

Figure 4.11

Removing screws from the keyboard .......................................................... 4-21

Figure 4.12

Removing the keyboard ............................................................................... 4-21

Figure 4.13

Removing the screws from the bottom of the laptop................................... 4-23

Figure 4.14

Removing five screws from the laptop and detach four cables. .................. 4-24

Figure 4.15

Removing the power board.......................................................................... 4-25

Figure 4.16

Removing the speakers ................................................................................ 4-26

Figure 4.17

Removing the screws from the touch pad bracket ....................................... 4-27

Figure 4.18

Removing the thermal fan from the logic lower assembly .......................... 4-28

Figure 4.19

Removing motherboard from logic lower assembly.................................... 4-29

Figure 4.20

Removing the DC_IN .................................................................................. 4-30

Figure 4.21

Picking up the motherboard ......................................................................... 4-30

Figure 4.22

Align the VGA CONN and RJ45 CONN .................................................... 4-31

Figure 4.23

Align the Audio CONN ............................................................................... 4-31

Figure 4.24

Installing the DC-in jack.............................................................................. 4-32

Figure 4.25

Removing the Thermal Module spring screws ............................................ 4-34

Figure 4.26

Removing the CPU ...................................................................................... 4-35

Figure 4.27

Reapply the Shinetsu 7726 grease on the thermal module and
remove the release papers ............................................................................ 4-36

Figure 4.28

Removing the screws from the rear of the laptop ........................................ 4-37

Figure 4.29

Removing the display assembly................................................................... 4-37

Figure 4.30

Removing the LCD Bezel Assembly........................................................... 4-39

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-v

4 Replacement Procedures
Figure 4.31

Peel off the bezel.......................................................................................... 4-40

Figure 4.32

Remove the bezel......................................................................................... 4-40

Figure 4.33

Press the bezel downside hook .................................................................... 4-41

Figure 4.34

Press the left and right side of the bezel ...................................................... 4-41

Figure 4.35

Press the bezel upside hooks........................................................................ 4-42

Figure 4.36

Removing the Inverter Board ...................................................................... 4-43

Figure 4.37

Removing the LCD Module from the LCD cover assembly ....................... 4-44

Figure 4.38

Removing the LCD Hinge Assembly .......................................................... 4-45

Figure 4.39

Removing the LCD module ......................................................................... 4-45

Figure 4.40

Removing the camera .................................................................................. 4-47

Figure 4.41

Removing the Hinge Saddle ........................................................................ 4-48

Figure 4.42

Removing the USB Board ........................................................................... 4-49

Figure 4.43

Removing the FM Jack ................................................................................ 4-50

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4 Replacement Procedures

General

This chapter explains how to disassemble the laptop and replace Field Replaceable Units (FRUs).
Some replacement procedures may not require you to remove all the surrounding FRUs to
replace only one FRU. The chart below shows the FRUs in the order in which they should be
removed in a top-down manner, irrespective of their physical locations. The FRUs shown in the
top area of the chart should normally be removed before removing the FRUs shown in the
bottom area. To replace the FRUs, first identify the suspect FRU for the system failure. Next,
according to this chart, determine the FRUs that need to be removed before removing the suspect
FRU. After you determine those FRUs, go to the appropriate sections according to the section
numbers shown in the boxes. Then start removal and replacement.
4.2 Battery

4.3 HDD

4.4 Memory

4.10 Power Board

4.5 WLAN Card

4.6 Modem Card
(BTO)

4.7 ODD

4.11 Speakers

4.8 Keyboard Cover
and Keyboard
4.13 Thermal
Fan

4.12 Touch Pad
Bracket

4.9 Logic Upper
Assembly
4.14 Motherboard

4.15 CPU and
Thermal Module

4.20 Hinge Saddle

4.17 LCD Bezel
Assembly

4.21 USB Board

4.18 LCD Module
and Inverter Board

4.22 RJ11 Jack

4.16 Display Assembly

4.19 Camera

How to use the chart (two examples):
 For removing the Motheroard:
First, remove parts from 4.8
Keyboard Cover & Keyboard, 4.9
Logic Upper Assembly, 4.13
Thermal Fan.
 For removing the LCD Module:
First, remove LCD Bezel Assembly,
then remove the LCD module and
the Inverter Board.

4.2 Battery

4.3 HDD

4.4 Memory

4.10 Power Board

4.5 WLAN Card

4.6 Modem Card
(BTO)

4.7 ODD

4.11 Speakers

4.8 Keyboard Cover
and Keyboard
4.13 Thermal
Fan

4.12 Touch Pad
Bracket

4.9 Logic Upper
Assembly

4.14 Motherboard

4.15 CPU and
Thermal Module

4.20 Hinge Saddle

4.17 LCD Bezel
Assembly

4.21 USB Board

4.18 LCD Module
and Inverter Board

4.22 RJ11 Jack

4.16 Display Assembly

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4 Replacement Procedures

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Safety Precautions
Before you begin disassembly read the following safety precautions carefully. Be sure to follow
them while you are working.
DANGER:
1.

Always use the genuine batteries or replacement batteries authorized by Toshiba.
Batteries other than those differ in specifications and are incompatible with the laptop.
They may burst or explode. To avoid leakage of alkaline solutions, never heat or
disassemble the battery packs. Never throw the battery packs into a fire. If this is
violated, they will explode.

The components such as the power supply and inverter carry high voltages. When you
partially disassemble the laptop and turn on the components, use extreme care not to
touch the connectors and components to avoid the risk of electrical shock. Do not
disassemble individual components during first-level maintenance.

WARNING:
1.

To avoid the risk of electrical shock, turn the laptop off and remove the AC adapter from
the electrical outlet.

Because the battery in the laptop is left charged, the risk of electrical shock remains
even after the AC adapter is removed from the electrical outlet. To avoid the risk of
electrical shock, be sure to remove any metal jewelry or accessories such as necklaces,
bracelets, and rings before starting work. Never work with damp or wet hands.

To avoid personal injury, use care to avoid the sharp edges or corners of the
components.

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CAUTION:
1.

Before replacing a component, make sure that the replacement component meets the
required specifications. To avoid laptop failures, never use components that do not meet
the specifications.

To avoid internal damage such as short circuits and fire, never drop metal objects such
as screws, pins, paper clips, etc. into the components. When a screw is removed, be sure
to replace a screw that is the same size as the original screw. Make sure that all the
screws are fastened securely. Loose screws can cause short circuits, overheating,
smoke, or fire.

Before raising a FRU or other component, make sure that all the component cables
have been disconnected to avoid the risk of electrical shock caused by accidental
contact with the energized components.

For AC input, be sure to use the AC adapter and AC power cable that come with your
laptop or Toshiba-recommended equivalents.

To avoid the risk of electrical shock, make sure that all the replacement components
meet the specifications of the laptop and that all the cables and connectors are fastened
securely.

Inside the PC are components that become hot during operation (such as the CPU and
cooling module). To avoid burns, let the hot components cool down before starting
inspection or repair task.

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Before You Begin
Before you begin to disassemble the laptop, keep in mind the precautions and advice in this
section. Always begin disassembly by removing the AC adapter and battery pack. Remove the
optional parts and accessories as well. The procedures for removing the batteries will be
explained later.
Disassemble the laptop only when an abnormality has occurred.
Use only the recommended tools.
To run and store the laptop, be sure to prepare a working environment that is free from:
 Dust and contaminants
 Static electricity
 Extremely high or low temperatures and extremely high humidity
Run the diagnostic tests explained in Chapter 2 of this manual to identify the FRU that has
probably caused the system failure.
Perform only the required machine operations. Use only the disassembly and reinstallation
procedures described in this manual.
Place the removed components in a safe place away from the laptop so that they are not damaged
or get in the way of you doing your work.
Normally, a number of screws need to be removed or replaced during disassembling. Place the
removed screws in a safe place so that you can easily find the right screws for the right
components.
When assembling the laptop, use the specified screws to fasten the parts to the specified
locations. See the appropriate explanations and figures for screw sizes.
To avoid personal injury, use care to handle components that have sharp edges or corners.
After you have replaced a FRU, check that the FRU works correctly to ensure normal laptop
operation.

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Disassembly Procedures
The cable connectors come in these two basic types:
 Pressure plate connectors
 Normal pin connectors
To remove a pressure plate connector, pull up the tabs on either side of the connector's plastic
pressure plate and gently pull the cable out of the connector. To reconnect the cable to the
pressure plate's connector, raise the pressure plate up to a satisfactory height and slide the cable
into the connector. Secure the cable in the correct position by pressing down the sides of the
pressure plate so that the plate is flush with the sides of the connector. Grasp and pull the cable
gently to check that the cable is connected firmly. If the cable came off the connector, reinsert
the cable by raising the pressure plate up to a satisfactory height.
Normal pin connectors are used for all the other types of cables. These connectors can be
installed or removed by simply inserting them or pulling them out.
Assembly Procedures
You have to reassemble the laptop after you have disassembled the laptop and fixed the
component that caused the problem.
When reassembling the laptop, keep the following general guidelines in mind:
 Take your time to carry out the suggested instructions completely. Hurried reassembly
can often cause problems.
 Check that all the cable and connectors are fastened securely.
 Before securing the FRUs or other parts, check that the cables are not caught by the
screws or FRUs.
 Check that all the latches are closed securely.
 Check that all the required screws are used to secure the FRUs. Using wrong screws can
damage the threads or heads of the screws or does not ensure that the FRUs are secure.
After installing a FRU, make sure that the FRU and laptop work normally.

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Tools and Equipment
For your safety and that of other people in the working environment, it is strongly recommended
that you use electrostatic discharge (ESD) equipment. The proper use of this equipment will
ensure successful repair work and reduce the costs for repairing damaged components. The
equipment and tools required for disassembly and reassembly are:










One 2 mm Phillips screwdriver
One 4 mm flat-blade screwdriver
Torx screwdriver
Tweezers (for pulling out screws)
ESD mats (for the floor and work desks)
An ESD wrist strap or heel grounder
Anti-static carpets or flooring
Air ionizers (for highly electrostatic sensitive areas)
A plastic card (in credit card size)

Screw Tightening Torque
To secure screws, follow the torque values listed below. Over tightening can damage
components and screws. Under tightening can loosen the screw or cause screws to come off,
which may result in short circuits or other damage.
 M2 (2 mm)

0.22 N･m (2.2 kgf･cm)

 M2.5 (2.5 mm)

0.36 N･m (3.5 kgf･cm)

 M3 (3 mm)

0.51 N･m (5.0 kgf･cm)

 M2.5x4 PSP TITE screws

0.204 N･m (2.0 kgf･cm)

 M2.5x6 GIZA TITE screws

0.36 N･m (3.5 kgf･cm)

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Colors of Screw Shanks
For easy identification of the correct screws, the screw shanks are colored according to their
lengths, as follows:
 Screws of an odd-numbered length
White
 Screws of a special length
Black
Screws of a special length are those of a length having decimal places (i.e. 16mm).
Symbols of Screws on the Laptop Body
For easy maintenance, the screw types are shown on the laptop body as symbols. A symbol
consists of a letter representing the screw type and a numeral representing the screw length.







Screw type
Bind screw
Flat-head screw
Super flat-head screw
Tapping screw
Other screws

Letter
B (stands for bind)
F (stands for flat-head)
S (stands for super flat-head)
T (stands for tapping)
U (stands for unique-pan head screws, studs, etc.)

Symbol examples
 6 mm bind screw
B6
 12 mm bind screw
B12
 5 mm stud
U5
(The numeral represents the rounded length of the threaded portion regardless of the
entire stud length.)

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Battery

Removing the Battery Pack
Remove the battery pack according to the following procedures and Figure 4.1.
CAUTION: When handling the battery packs, use care not to short circuit the terminals. Do
not drop, hit, twist, or bend the battery packs. Do not scratch or break up their casing.
1. Turn the laptop upside down so that the bottom is facing you.
2. Slide out the battery lock.
3. Slide the battery release latch and remove the battery pack from the laptop.

Figure 4.1 Removing the Battery Pack
NOTE: Dispose of the used battery packs as required by local ordinances or regulations.

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Installing the Battery Pack
Install the battery pack according to the following procedures.
CAUTION: The battery packs contain a lithium ion battery, which can explode due to
improper replacement, use, handling, or disposal. Always dispose of the battery packs as
required by local ordinances or regulations. Use only replacement batteries recommended by
Toshiba.

NOTE: Visually check the battery's terminals. If they are dirty, clean them with a dry cloth.

1. Gently insert a new or recharged battery pack into place. Check that the battery release
latch slides in and stops with a click.
2. Slide in the battery lock.

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4.3

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HDD

Removing the HDD
CAUTION: Do not press on the top or bottom of the drive.
Applying such pressure can either corrupt the data in the drive
or damage the drive.

There is one HDD equipped in the laptop. Remove the HDD (hard disk drive) according to the
following procedures and Figure 4.2, 4.3.
1. To remove the HDD, remove two M2.5x6 HDD door screws that secure the HDD and
then remove the HDD door.
M2.5×6*2

Figure 4.2 Removing the HDD door

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4 Replacement Procedures

2. Remove the HDD pack by pulling on the tab attached to the pack.
NOTE: Do not disassemble the HDD pack when it is working normally. Disassemble or
replace the HDD pack only if it fails.
3. Place the HDD pack on a flat surface such as a desk.
4. To separate the plate from the HDD, remove four M3x3 screws according to the number
sequence sealed on the HDD plate.
1

M3×3*4

Figure 4.3 Removing the HDD plate

CAUTION: Do not apply pressure to the top or bottom of the drive.

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Installing the HDD
Install the HDD according to the following procedures.
CAUTION: To avoid damage, always hold the HDD only by its sides.
1. Place the HDD into the HDD plate.
2. Secure the HDD and its plate with four M3x3 screws.
CAUTION: To prevent the HDD plate from being distorted when installing the HDD pack
into the laptop, do not press the center of the HDD pack. Always hold the HDD pack by its
sides.
3. Install the HDD pack into the correct position in the laptop. Connect the HDD pack to the
laptop.
4. Secure the HDD door by tightening two M2.5x6 screws.

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4.4

4 Replacement Procedures

Memory

Removing the Optional Memory
Remove the optional memory according to the following procedures and Figure 4.4, and 4.5 after
checking that the laptop is turned off.
CAUTION: Remove the optional memory after turning off the laptop. If this is violated, the
laptop or memory can be damaged.
1. Turn the laptop upside down.
2. Remove one M2.5x5.4 screw that secures the RAM door.
3. Remove the RAM door.
CAUTION: Do not touch the connectors on the memory or in the laptop. Contaminated
connectors can cause memory access problems.
M2.5×5.4*1

Figure 4.4 Removing the RAM door

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4. Spread out the two memory lock latches so that the memory pops up.

Figure 4.5 Removing the RAM from connector
5. Pull the memory up and out at an angle, using care to avoid touching the connectors.

Installing the Optional Memory
Install the optional memory according to the following procedures after checking that the laptop
is turned off.
CAUTION: Install the optional memory after turning off the laptop. If this is violated, the
laptop or memory can be damaged.
1. Insert the memory into the connector at an angle of 45 degrees.
2. Press down on the memory module so that it is secured with both memory lock latches.
3. Reinstall the optional RAM door.
4. Secure the RAM door with one M2.5x5.4 screw.
After the laptop is turned on, check the hardware configuration in the Hardware Setup or
TESTUP program to make sure that the installed memory has been recognized by the system. If
it has not been recognized yet, check the connections.

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4.5

4 Replacement Procedures

WLAN Card

Removing the WLAN Card
Remove the WLAN card according to the following procedures and Figure 4.6.
1. Detach the two antennas on the WLAN card.
2. Remove two M2.5x3 screws securing the WLAN card.
3. Pull the WLAN card out at an angle.
M2.5×3*2

Figure 4.6 Removing the WLAN card

Installing the WLAN Card
Install the WLAN card according to the following procedures.
1. Insert the WLAN card into the connector.
2. Press the card down and secure it with two M2.5x3 screws.
3. Attach the two antennas to the WLAN card.

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4.6

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Modem Card (BTO)

Removing the Modem Card
Remove the modem card according to the following procedures and Figure 4.7.
1. Remove two M2.5x3 screws that secure the modem card.
2. Flip the modem card over, and detach the cable connected to the card.
M2.5×3*2

Figure 4.7 Removing the modem card

Installing the Modem Card
Install the modem card according to the following procedures.
1. Attach the cable to the back of the modem card.
2. Install the card in the correct position and secure it with two M2.5x3 screws.

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4.7

4 Replacement Procedures

ODD

Removing the ODD Bay Module
NOTE: The installation and removal procedures are the same for all the modules that can be
installed in the ODD bay. See the appropriate sections for the disassembly procedures of
specific modules.
Remove the ODD bay module according to the following procedures and Figure 4.8.

M2.5×3*1

Figure 4.8 Removing the ODD Bay module
1. Turn the laptop upside down.
2. Remove one M2.5x3 screw.
3. Push the ODD bracket in the direction of the arrow.
CAUTION: Handle the ODD bay module carefully it can become hot during operation.

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Installing the ODD Bay Module
Install the ODD bay module according to the following procedures.
1. Place the ODD bay module in the correct position and slide it in.
2. Push it in until it meets the end.
3. Secure the ODD bay module with one M2.5x3 screw.

Disassembling the ODD Drive
NOTE: Do not disassemble the ODD drive when it is working normally. Disassemble or
replace the ODD drive only if it fails.
Disassemble the ODD drive according to the following procedures and Figure 4.9.
1. Remove two M2×2.5 screws.
2. Remove the bracket.

M2×2.5*2
Figure 4.9 Removing the bracket from the ODD drive

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4 Replacement Procedures

Assembling the ODD Drive
Assemble the ODD drive according to the following procedures.
1. Seat the bracket in the correct position.
2. Secure them with two M2×2.5 screws.

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4.8

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Keyboard Cover and Keyboard

Removing the Keyboard Cover and Keyboard
Remove the Keyboard Cover and Keyboard according to the following procedures and Figure
4.10, 4.11, 4.12.
1. Use a flat head screwdriver to lift the keyboard cover from the laptop.
2. Remove the keyboard cover.

Figure 4.10 Removing the keyboard cover

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4 Replacement Procedures

3. Remove two M2.0x3 screws.
M2.0×3*2

Figure 4.11 Removing screws from the keyboard
4. Flip the keyboard over and detach the cable on the back of the keyboard from the
motherboard.

Figure 4.12 Removing the keyboard

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Installing the keyboard Cover and Keyboard
Install the keyboard cover and keyboard according to the following procedures.
1. Attach the cable on the back of the keyboard to the motherboard and place the keyboard
in the correct position.
2. Secure the keyboard with two M2.0x3 screws.
3. Place the keyboard cover in the correct position, then press the cover down from the
middle to the left side, make sure the three hooks on the back of the cover stuck in the
laptop.
4. Press down the cover on the right side to make sure the two hooks on the back of the
cover stuck in the laptop.
5. Press down the cover in the position around the key F9 and slide to the left side to make
one hook on the back of the cover stuck in the laptop.

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4.9

4 Replacement Procedures

Logic Upper Assembly

Removing the Logic Upper Assembly
Remove the logic upper assembly according to the following procedures and Figure 4.13 and
4.14.
1. Turn the laptop upside down and remove the following 19 screws:
 Sixteen M2.5x10 screws
 Three M2.5x3 screws
M2.5×3*3
M2.5×10*16

Figure 4.13 Removing the screws from the bottom of the laptop

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2. Turn to the front and remove five M2.5x10 screws and detach four cables as indicated in
the Figure 4.14.
M2.5×10*5

Figure 4.14 Removing five screws from the laptop and detach four cables.
3. Lift up the logic upper assembly.

Installing the Logic Upper Assembly
Install the logic upper assembly according to the following procedures.
1. Seat the logic upper assembly to the front of the laptop, and adjust to the correct position.
2. Attach the four cables and secure the five screws as indicated in Figure 4.14.
3. Turn the laptop upside down and secure it with 19 screws as indicated in Figure 4.13:
 Sixteen M2.5x10 screws
 Three M2.5x3 screws

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4.10

4 Replacement Procedures

Power Board

Removing the Power Board
Remove the power board according to the following procedures and Figure 4.15.
1. Remove one M2.5x4 screw from the power board.
2. Separate the power board from the logic upper assembly.
M2.5×4*1

Figure 4.15 Removing the power board

Installing the power switch board
Install the power switch according to the following procedures.
1. Seat the power board in the correct place on the logic upper assembly.
2. Secure the power board with one M2.5x4 screw.

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4.11

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Speakers

Removing the Speakers
Remove the Speakers according to the following procedures and Figure 4.16.
1. Remove four M2.5x4 screws from the left and right speaker.
2. Remove the left and right speakers from the logic upper assembly.

M2.5×4*4

Figure 4.16 Removing the speakers

Installing the Speakers
Install the speakers according to the following procedures.
1. Seat the left and right speaker in the correct position.
2. Press speakers and secure the speakers with four M2.5x4 screws.

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4.12

4 Replacement Procedures

Touch Pad Bracket

Removing the Touch Pad Bracket
Remove the touch pad bracket according to the following procedures and Figure 4.17.
1. Remove three M2x4 screws from the pouch pad bracket.
M2×4*3

Figure 4.17 Removing the screws from the touch pad bracket

2. Push the touch pad bracket upward to remove it.

Installing the Touch Pad Bracket
Install the touch pad bracket according to the following procedures.
1. Seat the touch pad bracket in the correct position and secure it with three M2x4 screws.

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Thermal Fan

Removing the Thermal Fan
Remove the thermal fan according to the following procedures and Figure 4.18.
1. Detach the cable from the motherboard.
2. Remove one M2.5x5 screw from the thermal fan.
3. Remove the thermal fan from the logic lower assembly.
M2.5×5*1

Figure 4.18 Removing the thermal fan from the logic lower assembly

Installing the Thermal Fan
Install the thermal fan according to the following procedures.
1. Seat the thermal fan in the correct position on the logic lower assembly.
2. Secure the thermal fan with one M2.5x5 screw.
3. Attach the cable to the motherboard.

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4.14

4 Replacement Procedures

Motherboard

Removing the Motherboard
Remove the motherboard according to the following procedures.
1. Remove one M2.5x4 screw and detach three cables from the logic lower assembly as
indicated by arrows in Figure 4.19.
M2.5×4*1

Figure 4.19 Removing motherboard from logic lower assembly

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2. Remove the DC_IN CONN and pull it out of the routing channel, as shown in Figure 4.20.

Figure 4.20 Removing the DC_IN
3. Use left hand to hold down the lower part of the motherboard and right hand to pick the
motherboard up.

Figure 4.21 Picking up the motherboard
4. Remove the motherboard from the logic lower assembly.

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Installing the Motherboard
Install the motherboard according to the following procedures.
1. Before seat the motherboard on the logic lower assembly, pull out the USB FFC to avoid
being pressed.
2. Align the VGA CONN and RJ45 CONN to the holes in the logic lower assembly as shown in
Figure 4.22.

Figure 4.22 Align the VGA CONN and RJ45 CONN
3. Align the Audio CONN to the holes in the logic lower assembly and push the motherboard
downward. Make sure the SPDIF & Audio CONN fit the holes.

Figure 4.23 Align the Audio CONN
4. Put the DC_IN CONN in the lower DC_IN trough and route the cable from left to right under
the routing channel as shown in Figure 4.24.

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Figure 4.24 Installing the DC-in jack
5. Secure one M2.5x4 screw.
6. Attach three cables to the motherboard as indicated by arrows in Figure 4.19.

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4.15

4 Replacement Procedures

CPU and Thermal Module

Removing CPU and Thermal Module
Remove the CPU and the CPU thermal module according to the following procedures and Figure
4.25, 4.26.
CAUTION:
When removing the thermal module, keep the following in mind:
1.

The thermal module can become very hot during operation. Be sure to let it cool down
before starting the repair work.

If you remove the CPU thermal module, please use soft cloth with alcohol to clean the
CPU and CPU thermal module. Reapply Shinetsu 7762 grease before installing the
CPU thermal module. If you use one new CPU thermal module, please make sure
remove the release paper first.

1. Remove four spring screws securing the thermal module to the motherboard, according to
the number sequence sealed on the thermal module.
2. Remove the thermal module from the motherboard.

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4 Replacement Procedures

Error! Style not defined. Error! Style not defined.
2 4

Figure 4.25 Removing the Thermal Module spring screws

CAUTION:
When removing the CPU, keep the following in mind:
The CPU can become very hot during operation. Be sure to let it cool down before starting
repair work.

3. Unlock the CPU by rotating the cam on the CPU socket counterclockwise to the unlock
position with a flat-blade screwdriver.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-34

Error! Style not defined. Error! Style not defined.

4 Replacement Procedures

Figure 4.26 Removing the CPU
4. Remove the CPU.

Installing CPU and Thermal Module
Install the CPU and Thermal Module according to the following procedures.
1. Check the cam is in the unlock position.
2. Seat the CPU on the socket, using care not to damage the pins. Align the CPU with the
CPU socket by using the triangle as a guide.
3. Rotate the cam clockwise to the lock position with a flat-blade screwdriver.
CAUTION:
When installing the thermal module, keep the following in mind:
1.

Be sure to confirm the correct position for the module.

Secure the relevant screws on the motherboard according to the number sequence
sealed on the thermal module.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-35

4 Replacement Procedures

Error! Style not defined. Error! Style not defined.

4. Reapply Shinetsu 7762 grease on the CPU thermal module as shown in Figure 4.27. If
you use one new CPU thermal module, remove the release papers on the thermal pads
first.

Thermal pad

Thermal Grease

Figure 4.27 Reapply the Shinetsu 7726 grease on the thermal module and remove the release
papers
5. Install the thermal module into the correct position in the laptop.
6. Secure it with four spring screws according to the number sequence sealed on the thermal
module.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-36

Error! Style not defined. Error! Style not defined.

4.16

4 Replacement Procedures

Display Assembly

Removing the Display Assembly
CAUTION: Use care to avoid the antenna cable being caught between the display assembly
and the laptop.
Remove the display assembly according to the following procedures and Figure 4.28, 4.29.
1. Turn the laptop so the rear is facing you and remove two M2.5x4.5 screws.

M2.5×4*2

Figure 4.28 Removing the screws from the rear of the laptop

2. Remove three M2.5x4 and one M2.5x5 screws securing the display assembly to the
laptop.
M2.5×4*3
M2.5×5*1

Figure 4.29 Removing the display assembly
3. Remove the display assembly.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-37

4 Replacement Procedures

Error! Style not defined. Error! Style not defined.

Installing the Display Assembly
Install the display assembly according to the following procedures.
1. Place the display assembly in the correct position.
2. Secure the display assembly with three M2.5x4 screws and one M2.5x5 screw.
3. Close the display panel and turn the laptop so the rear is facing you and secure two
M2.5x4.5 screws.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-38

Error! Style not defined. Error! Style not defined.

4.17

4 Replacement Procedures

LCD Bezel Assembly

Removing the LCD Bezel Assembly
Remove the LCD bezel assembly according to the following procedures.
1. Remove four rubber seals from the LCD bezel assembly.
2. Remove two M2.5x5 and two M2.5x6 screws as shown in Figure 4.30.
M2.5×6*2
M2.5×5*2

Figure 4.30 Removing the LCD Bezel Assembly

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-39

4 Replacement Procedures

Error! Style not defined. Error! Style not defined.

3. Peel off the bezel from left and right side as shown in Figure 4.31.

Figure 4.31 Peel off the bezel
4. Push the bezel from the left and right side as shown in Figure 4.32 and remove the bezel
from the display assembly.

Figure 4.32 Remove the bezel

Installing the Display Mask
Install the LCD bezel assembly according to the following procedures.
1. Seat the LCD bezel assembly in the correct position.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-40

Error! Style not defined. Error! Style not defined.

4 Replacement Procedures

2. Press the bezel downside hook as shown in Figure 4.33.

Figure 4.33 Press the bezel downside hook
3. Press the left and right side of the bezel as shown in Figure 4.34.

Figure 4.34 Press the left and right side of the bezel

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-41

4 Replacement Procedures

Error! Style not defined. Error! Style not defined.

4. Press the bezel upside hooks as shown in Figure 4.35.

Figure 4.35 Press the bezel upside hooks
5. Secure it to the display assembly with two M2.5x5 and two M2.5x6 screws.
6. Put four rubber seals over the screw holes.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-42

Error! Style not defined. Error! Style not defined.

4.18

4 Replacement Procedures

LCD Module and Inverter Board

Removing the LCD Module and Inverter Board
Remove the LCD module and the inverter board according to the following procedures and
Figure 4.36, 4.37, 4.38 and 4.39.
1. Remove one M2x4 screw securing the inverter board and detach two cables connected to
the two ends of the inverter. Then remove the inverter board.
M2×4*1

Figure 4.36 Removing the Inverter Board

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-43

4 Replacement Procedures

Error! Style not defined. Error! Style not defined.

2. Remove ten M2.5x4 screws securing the LCD module to the LCD cover assembly and
detach one cable from camera.
3. Lift the LCD module out of the LCD cover assembly.
M2.5×4*10

Figure 4.37 Removing the LCD Module from the LCD cover assembly

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-44

Error! Style not defined. Error! Style not defined.

4 Replacement Procedures

4. Remove six M2x3 screws according to the sequence indicated in Figure 4.38 on each side
of the LCD hinge assembly and then remove the LCD hinge assembly.
M2×3*6
2

Figure 4.38 Removing the LCD Hinge Assembly
5. Turn the LCD module over and place it face down on a protective surface, such as a foam
pad.
6. Remove the tape and LVDS cable connector. Then detach the LVDS cable.

Figure 4.39 Removing the LCD module
Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-45

4 Replacement Procedures

Error! Style not defined. Error! Style not defined.

NOTE:
ICs are fragile. Use extreme care not to apply pressure to the ICs along the edges of the LCD
module.
Dispose of used LCD panels (fluorescent (FL) tubes) as required by local ordinances or
regulations.
The LVDS cable must be carefully peeled away before disconnecting it from the LCD panel.

Installing the LCD Module and Inverter Board
Install the inverter board according to the following procedures.
1. Place the LCD module cover face down on a protective surface such as a foam pad.
2. Connect the LVDS cable to the LCD panel connector.
3. Turn the LCD right side up.
4. Seat the LCD hinge assembly in the correct position beside the LCD panel and secure it
with six M2x3 screws.
5. Seat the LCD module in the correct position in the LCD cover assembly and secure it to
the LCD cover assembly with ten M2.5x4 screws.
6. Seat the inverter board in correct position and connect two cables to the two ends of the
inverter board. Then secure it with one M2x4 screw.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-46

Error! Style not defined. Error! Style not defined.

4.19

4 Replacement Procedures

Camera (BTO)

Removing the Camera
Remove the camera according to the following procedures and Figure 4.40.
1. Pick the camera up from the LCD cover.

Figure 4.40 Removing the camera

Installing the Camera
Install the camera according to the following procedures.
1. Put the camera in the correct position on the LCD cover.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-47

4 Replacement Procedures

4.20

Error! Style not defined. Error! Style not defined.

Hinge Saddle

Removing the Hinge Saddle
Remove the hinge saddle according to the following procedures and Figure 4.41.
1. Remove two M2.5x6 screws that secure the hinge saddles to the logic lower assembly.
2. Remove the hinge saddles from the logic lower assembly.

M2.5×6*2

Figure 4.41 Removing the Hinge Saddle

Installing the Hinge Saddle
Install the hinge saddle according to the following procedures.
1. Seat the hinge saddles in the correct position on the logic lower assembly.
2. Secure the hinge saddles with two M2.5x6 screws.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-48

Error! Style not defined. Error! Style not defined.

4.21

4 Replacement Procedures

USB Board

Removing the USB Board
Remove the USB board according to the following procedures and Figure 4.42.
1. Remove one M2.5x3 screw that secures the USB board to the logic lower assembly.
2. Remove the USB board from the logic lower assembly.
M2.5×3*1

Figure 4.42 Removing the USB Board

Installing the USB Board
Install the USB board according to the following procedures.
1. Seat the USB board in the correct position on the logic lower assembly.
2. Secure the USB board to the logic lower assembly with one M2.5x3 screw.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-49

4 Replacement Procedures

4.22

Error! Style not defined. Error! Style not defined.

RJ11 Jack

Removing the RJ11 Jack
Remove the RJ11 jack according to the following procedures and Figure 4.43.
1. Pick up the RJ11 jack from the socket on the logic lower assembly and pull the cable out of
the routing channel.

Figure 4.43 Removing the FM Jack

Installing the RJ11 Jack
Install the RJ11 Jack according to the following procedures.
1. Seat the RJ11 jack in the socket on the logic lower assembly.
2. Align the cable to the routing channel on the logic lower assembly.

Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual

4-50

Appendix A

Appendix A Handling the LCD Module
Precautions for handling the LCD module
The LCD module can be easily damaged during assembly or disassembly. Observe the following
precautions when handling it to prevent damaging it.

1. When installing the LCD module in the display assembly, make sure that you seat it so
that it is properly aligned and maximum visibility of the display is maintained.

2. Be careful to align the holes at the four corners of the LCD module with the
corresponding holes in the LCD cover before securing the module with screws.
Do not force the module into place, because stress can affect its performance.
Note: The panel’s polarized surface is easily scratched and damaged, so handle it
carefully.

Satellite L450/L450D Series Maintenance Manual

[CONFIDENTIAL]

A-1

3. If the panel’s surface gets dirty or moist, wipe it with cotton or a soft cloth. If it is still
dirty, try breathing on the surface to create a light condensate and wipe it again.
If the surface is very dirty, we recommend a CRT cleaning agent. Apply the agent to a
soft cloth and then wipe the panel’s surface. Do not apply cleanser directly to the panel.

CRT
Cleaner

4. If water or other liquid is left on the panel’s surface for a long period, it can change the
screen’s tint or stain it. Be sure to quickly wipe off any liquid.

A-2

[CONFIDENTIAL]

Satellite L450/L450D Series Maintenance Manual

5. Glass is used in the panel, so be careful not to drop it or let it strike a hard object, which
could cause breakage or cracks.

6. CMOS-LSI circuits are used in the module, so guard against damage from electrostatic
discharge. Be sure to wear a wrist or ankle grounding device when handling the module.

Satellite L450/L450D Series Maintenance Manual

[CONFIDENTIAL]

A-3

7. Do not expose the module to direct sunlight or strong ultraviolet rays for long periods.

8. Do not store the module at temperatures below its specifications. Cold can cause the
liquid crystals to freeze, lose their elasticity or otherwise suffer damage.

9. Do not disassemble the LCD module. Disassembly can cause malfunctions.

A-4

[CONFIDENTIAL]

Satellite L450/L450D Series Maintenance Manual

10. If you transport the module, do not use packing material that contains epoxy resin (amine)
or silicon glue (alcohol or oxime). These materials can release gas that can damage the
panel’s polarization.

Satellite L450/L450D Series Maintenance Manual

[CONFIDENTIAL]

A-5

Appendix B

Appendix B Board Layout
B.1

System Board Top View

Figure B-1 System Board Layout (Top)

Low Cost Los Angeles 10AL+ Maintenance Manual
1

[CONFIDENTIAL]

B-

B.2

System Board Bottom View

Figure B-2 System Board Layout (Bottom)

B-2

[CONFIDENTIAL] Low Cost Los Angeles 10AL+ Maintenance Manual

Table B-1 System Board ICs (top and bottom)
Number

Name

North Bridge (RS780MN / RS780MC)

U10

Clock Generator (SLG8SP626VTR)

U15

South Bridge (SB700)

U33

EC (KB926QFD3)

U46

BIOS ROM

UA2

CODEC (ALC272-GR)

UC1

Card Reader Controller (RTS5159-VDD-GR )

UL1

LAN Controller (RTL8103EL-GR)

Table B-2 System Board Connectors (top and bottom)
Number

Name

JCPU

CPU Socket

JFAN

Fan conn.

JDDRL, JDDRH

DDRII conn.

JCRT

CRT conn.

JREAD

3 in 1 Card Reader conn.

JMIC

Microphone conn.

JSPKR, JSPKL

Speaker conn.

JWLAN
JHDD0

WLAN conn.
1

SATA HDD conn.

JODD

ODD conn.

JUSB

USB conn.

JHDMI

HDMI conn.

JKB

Keyboard conn.

JTOUCH

TP/B conn.

JPOWER

Power/B conn.

JLAN

LAN conn.

JLINE

Headphones conn.

JEXMIC

External MIC conn.

JLVDS

LVDS conn.

JUSBB

USB/B conn.

JMDC

MDC conn.

Low Cost Los Angeles 10AL+ Maintenance Manual

[CONFIDENTIAL]

B-3

B-4

PJP1

AC Adaptor conn.

PJP2

Battery conn.

[CONFIDENTIAL] Low Cost Los Angeles 10AL+ Maintenance Manual

Appendix C

Pin Assignments

System Board
C.1

JFAN
Table C-1 FAN I/F pin assignments (3-pin)
Pin No.

C.2

Signal name

I/O

Pin No.

Signal Name

I/O

FAN_SPEED1

+FAN1

GND

JLVDS
Table C-2 LVDS I/F pin assignments (40-pin)

Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

GND

UMA_LCD_TXCLK_ACLK+

UMA_LCD_TXOUT0_A0+

UMA_LCD_TXCLK_ACLK-

UMA_LCD_TXOUT0_A0-

GND

DAC_BRIG

UMA_LCD_TXOUT0_A1+

INVT_PWM

UMA_LCD_TXOUT0_A1-

GND

UMA_LCD_TXOUT0_A2+

UMA_LCD_TXOUT0_A2-

GND

UMA_LCD_DDC_CLK

UMA_LCD_DDC_DAT

+5V_LVDS_CAM

+LCDVDD_R

GND

+LCDVDD_R

USB20_P9_R

+3VS

USB20_N9_R

GND

+LCD_INV

GND

+LCD_INV

BKOFF#

Low Cost Los Angeles 10AL+ Maintenance Manual

[CONFIDENTIAL]

C-1

C.3

JCRT
Table C-3 CRT pin assignments (15-pin)
Pin No.

C.4

Signal name

I/O

Pin No.

Signal Name

I/O

RED_L

GREEN_L

BLUE_L

GND

+CRT_VCC

GND

D_DDCDATA

HSYNC

VSYNC

D_DDCCLK

JHDMI
Table C-4 HDMI I/F pin assignments (19-pin)
Pin No.

C.5

Signal name

I/O

Pin No.

Signal Name

I/O

HDMI_R_D2+

GND

HDMI_R_D2-

HDMI_R_D1+

GND

HDMI_R_D1-

HDMI_R_D0+

GND

HDMI_R_D0-

HDMI_R_CK+

GND

HDMI_R_CK-

HDMI_SCLK

HDMI_SDATA

GND

+HDMI_5V_OUT

HDMI_HPD

JHDD0
Table C-5 HDD I/F pin assignments (22-pin)
Pin No.

C-2

Signal name

I/O

Pin No.

Signal Name

I/O

GND

SATA_TXP1

SATA_TXN1

GND

[CONFIDENTIAL]

Low Cost Los Angeles 10AL+ Maintenance Manual

C.6

SATA_IRX_DT
X_N1

SATA_IRX_DT
X_P1

GND

+3VS

GND

+5VS

GND

JODD
Table C-6 SATA ODD I/F pin assignments (14-pin)
Pin No.

C.7

Signal name

I/O

Pin No.

Signal Name

I/O

GND

SATA_TXP3

SATA_TXN3

GND

SATA_IRX_DT
X_N3

SATA_IRX_DT
X_P3

GND

+5VS

GND

JCAM
Table C-7 Internal Camera Connector pin assignments (5-pin)
Pin No.

Signal name

+5V_CAM

USB20_P9_R_R

GND

Low Cost Los Angeles 10AL+ Maintenance Manual

I/O

Pin No.

Signal Name

I/O

USB20_N9_R_R

I/O

GND

[CONFIDENTIAL]

C-3

C.8

JWLAN
Table C-8 WLAN Connector pin assignments (52-pin)
Pin No.

C-4

Signal name

I/O

Pin No.

Signal Name

I/O

+3VS

GND

+1.5VS

CLKREQ_MCARD
2#

GND

A10

A11

CLK_PCIE_MCAR
D2#

A12

A13

CLK_PCIE_MCAR
D2

A14

A15

GND

A16

A17

A18

GND

A19

A20

WL_OFF#

A21

GND

A22

PLT_RST#

A23

PCIE_PTX_C_IRX
_N2

A24

+3VS

A25

PCIE_PTX_C_IRX
_P2

A26

GND

A27

GND

A28

+1.5VS

A29

GND

A30

SMB_CK_CLK1

I/O

A31

PCIE_ITX_C_PRX
_N2

A32

SMB_CK_DAT1

I/O

A33

PCIE_ITX_C_PRX
_P2

A34

GND

A35

GND

A36

USB20_N8

I/O

A37

GND

A38

USB20_P8

I/O

A39

+3VS

A40

GND

A41

+3VS

A42

A43

GND

A44

A45

A46

A47

A48

+1.5VS

A49

E51_TXD_R

A50

GND

A51

E51_RXD_R

A52

+3VS

[CONFIDENTIAL]

Low Cost Los Angeles 10AL+ Maintenance Manual

C.9

JLAN
Table C-9 LAN Connector pin assignments (14-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

RJ45_MIDI0+

I/O

RJ45_MIDI0-

I/O

RJ45_MIDI1+

I/O

RJ45_MIDI1-

+3V_LAN

LAN_SK_LAN_LI
NK#

+3V_LAN

LAN_ACTIVITY#

LANGND

I/O

C.10 JDDRL, JPDDRH
Table C-10 SODIMM I/F pin assignments (200-PIN) (1/4)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

VREF

VSS

DQ4

I/O

DQ0

I/O

DQ5

I/O

DQ1

I/O

VSS

DM0

I/O

DQS0#

I/O

VSS

DQS0

I/O

DQ6

I/O

VSS

DQ7

I/O

DQ2

I/O

VSS

DQ3

I/O

DQ12

I/O

VSS

DQ13

I/O

DQ8

I/O

VSS

I/O

DQ9

I/O

DM1

VSS

DQS1#

I/O

CK0

I/O

DQS1

I/O

CK0#

I/O

Table C-10 SODIMM I/F pin assignments (200-PIN) (2/4)

Low Cost Los Angeles 10AL+ Maintenance Manual

[CONFIDENTIAL]

C-5

Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

VSS

DQ10

I/O

DQ14

I/O

DQ11

I/O

DQ15

I/O

VSS

DQ16

I/O

DQ20

I/O

DQ17

I/O

DQ21

I/O

VSS

DQS2#

I/O

50v

DQS2

I/O

DM2

I/O

VSS

DQ18

I/O

DQ22

I/O

DQ19

I/O

DQ23

I/O

VSS

DQ24

I/O

DQ28

I/O

DQ25

I/O

DQ29

I/O

VSS

DM3

I/O

DQS3#

I/O

DQS3

I/O

VSS

DQ26

I/O

DQ30

I/O

DQ27

I/O

DQ31

I/O

VSS

CKE0

I/O

NC/CKE1

I/O

VDD

NC/A15

BA2

I/O

NC/A14

VDD

A12

I/O

A11

I/O

VDD

Table C-10 SODIMM I/F pin assignments (200-PIN) (3/4)

C-6

[CONFIDENTIAL]

Low Cost Los Angeles 10AL+ Maintenance Manual

Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

100

I/O

101

I/O

102

I/O

103

VDD

104

VDD

105

A10/AP

I/O

106

BA1

I/O

107

BAD

I/O

108

RAS#

I/O

109

WE#

I/O

110

S0#

I/O

111

VDD

112

VDD

113

CAS#

I/O

114

ODT0

I/O

115

NC/S1#

I/O

116

NC/A13

I/O

117

VDD

118

VDD

119

NC/ODT1

I/O

120

121

VSS

122

VSS

123

DQ32

I/O

124

DQ36

I/O

125

DQ33

I/O

126

DQ37

I/O

127

VSS

128

VSS

129

DQS4#

I/O

130

DM4

I/O

131

DQS4

I/O

132

VSS

133

VSS

134

DQ38

I/O

135

DQ34

I/O

136

DQ39

I/O

137

DQ35

I/O

138

VSS

139

VSS

140

DQ44

I/O

141

DQ40

I/O

142

DQ45

I/O

143

DQ41

I/O

144

VSS

145

VSS

146

DQS5#

I/O

147

DM5

I/O

148

DQS5

I/O

149

VSS

150

VSS

151

DQ42

I/O

152

DQ46

I/O

153

DQ43

I/O

154

DQ47

I/O

155

VSS

156

VSS

157

DQ48

I/O

158

DQ52

I/O

159

DQ49

I/O

160

DQ53

I/O

Table C-10 SODIMM I/F pin assignments (200-PIN) (4/4)

Low Cost Los Angeles 10AL+ Maintenance Manual

[CONFIDENTIAL]

C-7

Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

161

VSS

162

VSS

163

DQ18

I/O

164

DQ22

I/O

165

DQ19

I/O

166

DQ23

I/O

167

VSS

168

VSS

169

DQ24

I/O

170

DQ28

I/O

171

DQ25

I/O

172

DQ29

I/O

173

VSS

174

VSS

175

DM3

I/O

176

DQS3#

I/O

177

178

DQS3

I/O

179

VSS

180

VSS

181

DQ26

I/O

182

DQ30

I/O

183

DQ27

I/O

184

DQ31

I/O

185

VSS

186

VSS

187

CKE0

I/O

188

NC/CKE1

I/O

189

VDD

190

VDD

191

192

NC/A15

193

BA2

I/O

194

NC/A14

195

VDD

196

VDD

197

A12

I/O

198

A11

I/O

199

I/O

200

I/O

C.11 JMIC
Table C-11 Internal Microphone Connector pin assignments (2-pin)
Pin No.
1

C-8

Signal name
INT_MIC

[CONFIDENTIAL]

I/O

Pin No.

Signal Name
GND

I/O
-

Low Cost Los Angeles 10AL+ Maintenance Manual

C.12 JLINE
Table C-12 HEADPHONE Connector pin assignments (10-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

GND

HP_L_L

HP_R_L

NBA_PLUG

GND

C.13 JKB
Table C-13 Keyboard Connector pin assignments (34-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

NUM_LED#

CURS_LED#

CAPS_LED#

+3VS

KSI1

KSI6

KSI5

KSI0

KSI4

KSI3

KSI2

KSI7

KSO15

KSO12

KSO11

KSO10

KSO9

KSO8

KSO13

KSO7

KSO6

KSO14

KSO5

KSO3

KSO4

KSO0

KSO1

KSO2

+3VS

Low Cost Los Angeles 10AL+ Maintenance Manual

[CONFIDENTIAL]

C-9

Table C-14 USB Connector pin assignments (4P-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

+USB_VCCB

USB20_N2_R

USB20_P2_R

I/O

GND

I/O
I/O
-

C.14 JUSBB
Table C-15 USB/B Connector pin assignments (12P-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

+USB_VCCA

GND

USB20_N0_R

I/O

USB20_P0_R

I/O

GND

USB20_N1_R

I/O

USB20_P1_R

I/O

GND

C.15 JCS
Table C-16 FUN/B connector pin assignments (8P-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

+3VL_CS

CAP_INT#

CAP_RST#

GND

ESB_CK_L

I/O

ESB_DA_L

I/O
-

C.16 JPOWER
Table C-17 POWER/B connector pin assignments (4P-pin)
Pin No.
1

C-10

Signal name
NC

[CONFIDENTIAL]

I/O

Pin No.

Signal Name
NC

I/O
-

Low Cost Los Angeles 10AL+ Maintenance Manual

ON/OFFBTN#

GND

C.17 JREAD
Table C-18 CARD READER connector pin assignments (21-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

SDWP#

SD_DATA1

SD_MS_DATA0

GND

MSBS

SDCLK

MS_DATA1

SD_MS_DATA0

+VCC_3IN1

MS_DATA2_SD_D
ATA7

GND

MSCD#

MS_DATA3_SD_D
ATA6

SDCMD

MSCLK

+VCC_3IN1

SD_DATA3

GND

SD_DATA2

SDCD#

I/O

C.18 JEXMIC
Table C-19 EXMIC connector pin assignments (5P-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

GND

MIC1_L_L

MIC1_L_R

MIC_SENSE

GND

C.19 JSPKL
Table C-20 SPKL connector pin assignments (2P-pin)
Pin No.
1

Signal name
SPK_L1

Low Cost Los Angeles 10AL+ Maintenance Manual

I/O

Pin No.

Signal Name
SPK_L2

[CONFIDENTIAL]

I/O
O

C-11

C.20 JSPKR
Table C-21 SPKR connector pin assignments (2P-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

SPK_R1

SPK_R2

C.21 JTOUCH
Table C-22 T/P connector pin assignments (6P-pin)
Pin No.

Signal name

I/O

Pin No.

Signal Name

I/O

TP_CLK

I/O

+5VS_TOUCH

TP_DATA

I/O

TP_SWL

TP_SWR

GND

C.22 JMDC
Table C-23 MDC connector pin assignments (12-pin)
Pin No.

C-12

Signal name

I/O

Pin No.

Signal Name

I/O

GND

+3VALW

HDA_SDOUT_MDC

GND

+3VALW

HDA_SYNC_MDC

GND

HDA_SDIN1_MDC

GND

HDA_RST#_MDC

HDA_BITCLK_MDC

[CONFIDENTIAL]

Low Cost Los Angeles 10AL+ Maintenance Manual

Appendix D

Keyboard Scan/Character Codes
Table D-1 Scan codes (set 1 and set 2) (1/4)

Cap
No.

Keytop

Code set 1

Code set 2

Note

Make

Break

Make

‘ ~

1 !

2 @

3 #

4 $

5 %

6 ^

7 &

8 *

9 (

0 )

- _

= +

BkSp

Tab

[ {

] }

Low Cost Los Angeles L450/L450D Maintenance Manual

Break

[CONFIDENTIAL]

D-1

Table D-1 Scan codes (set 1 and set 2) (2/4)

D-2

Cap
No.

Keytop

Code set 1

Code set 2

Note

Make

Break

Make

\ |

Caps Lock

; :

‘ “

Enter

Shift (L)

No.102
key

, <

. >

/ ?

Shift (R)

[CONFIDENTIAL]

Break

Low Cost Los Angeles L450/L450D Maintenance Manual

Table D-1 Scan codes (set 1 and set 2) (3/4)
Cap
No.

Keytop

Code set 1

Code set 2

Note

Make

Break

Make

Ctrl(L)

Alt (L)

Space

ALT (R)

Ctrl(R)

Ins

Del



Home

End





PgUp

PgDn



110

Esc

112

113

114

115

116

117

118

119

120

121

F10

Satellite A350/A350D Series Maintenance Manual

Break

[CONFIDENTIAL]

D-3

Table D-1 Scan codes (set 1 and set 2) (4/4)
Cap
No.

Keytop

Code set 1

122

F11

123

F12

124

PrintSc

126

Pause

—

Win

App

Make

Code set 2

Break

Make

Note

Break

Notes:
1.
2.
3.
4.
5.
6.
7.

D-4

*
*
*
*
*
*
*

Scan codes differ by mode.
Scan codes differ by overlay function.
Combination with the Fn key gives different codes.
The Fn key does not generate a code by itself.
This key corresponds to key No. 42 in a 102-key model.
Refer to Table D-6, No. 124 key scan code.
Refer to Table D-7, No. 126 key scan code.

[CONFIDENTIAL]

Low Cost Los Angeles L450/L450D Maintenance Manual

Table D-2 Scan codes with left Shift key
Cap

Key

Code set 1

No.

top

E0 AA E0 35 E0 B5 E0 2A E0

E0 4A E0

4A E0

INS

E0 AA E0 52 E0 D2 E0 2A E0

DEL

E0 AA E0 53 E0 D3 E0 2A E0



E0 AA E0 4B E0 CB E0 2A E0

E0 6B E0

6B E0

Home

E0 AA E0 47 E0 C7 E0 2A E0

E0 6C E0

F0 6C E0

End

E0 AA E0 4F E0 CF E0 2A E0



E0 AA E0 48 E0 C8 E0 2A E0



E0 AA E0 50 E0 D0 E0 2A E0

PgUp

E0 AA E0 49 E0 C9 E0 2A E0

E0 7D E0

F0 7D E0

PgDn

E0 AA E0 51 E0 D1 E0 2A E0

E0 7A E0

7A E0



E0 AA E0 4D E0 CD E0 2A E0

Win

E0 AA E0 5B E0 DB E0 2A E0

App

E0 AA E0 5D E0 DD E0 2A E0

Make

Code set 2
Break

Make

Break

Note : The table above shows scan codes with the left Shift key. In combination
with the right Shift key, scan codes are changed as listed below:
Set 1
Set 2

With left Shift
E0 AA ___________
E0 2A ___________
E0 F0 12_________
E0 12____________

Satellite A350/A350D Series Maintenance Manual

With right Shift
E0 B6
E0 36
E0 F0 59
E0 59

[CONFIDENTIAL]

D-5

Table D-3 Scan codes in Numlock mode
Cap

Key

Code set 1

No.

top

INS

E0 2A E0

E0 D2 E0

AA E0 12

E0 F0

F0 12

DEL

E0 2A E0

E0 D3 E0

AA E0 12

E0 F0

F0 12



E0 2A E0 4B E0 CB E0

AA E0 12

6B E0 F0

6B E0

F0 12

Home

E0 2A E0

E0 C7 E0

AA E0 12

E0 6C E0 F0 6C E0

F0 12

End

E0 2A E0

E0 CF E0

AA E0 12

E0 F0

F0 12



E0 2A E0

E0 C8 E0

AA E0 12

E0 F0

F0 12



E0 2A E0

E0 D0 E0

AA E0 12

E0 F0

F0 12

PgUp

E0 2A E0

E0 C9 E0

AA E0 12

E0 7D E0 F0 7D E0

F0 12

PgDn

E0 2A E0

E0 D1 E0

AA E0 12

7A E0 F0

7A E0

F0 12



E0 2A E0 4D E0 CD E0

AA E0 12

E0 F0

F0 12

Win

E0 2A E0 5B E0 DB E0

AA E0 12

E0 F0

F0 12

App

E0 2A E0 5D E0 DD E0

AA E0 12

E0 F0

F0 12

Make

Code set 2
Break

Make

Break

Table D-4 Scan codes with Fn key
Cap

D-6

Code set 1

Code set 2

No.

Keytop

ENT

L-CTRL

L-ALT

121

ARROW

122

NUMERIC

123

Scrl

Make

[CONFIDENTIAL]

Break

Make

Break

Low Cost Los Angeles L450/L450D Maintenance Manual

Table D-5 Scan codes in overlay mode
Cap
No.

Code set 1

Keytop

Code set 2

Make

Break

Make

Break

(8)

(9)

(*)

(4)

(5)

(6)

(–)

(1)

(2)

(3)

;

(+)

(0)

(.)

(/)

Table D-6 No.124 key scan code
Key
top
Prt Sc

Code set 1

Shift
Common

Make
2A

Ctrl 

Shift 

Alt 

Code set 2
Break

Satellite A350/A350D Series Maintenance Manual

Make
AA

Break
7C

[CONFIDENTIAL]

D-7

Table D-7 No.126 key scan code
Key top

Pause

Shift

Code set 1

Code set 2

Make

Common

Ctrl

*: This key generates only make codes.

D-8

[CONFIDENTIAL]

Low Cost Los Angeles L450/L450D Maintenance Manual

Appendix E Key Layout

United Status (US) Keyboard

Figure US keyboard

Traditional Chinese (CH) Keyboard

Figure CH keyboard

3. Thai (TI) Keyboard

Figure TI keyboard

Korean (KO) Keyboard

Figure KO keyboard

5. United Kingdom (UK) Keyboard

Figure UK keyboard

6. US International (UI) Keyboard

Figure UI keyboard

7. Hebrew (HB) Keyboard

Figure HB keyboard

8. Danish (DM) Keyboard

Figure DM keyboard

9. Swiss (SW) Keyboard

Figure SW keyboard

10. Arabic (ARE) Keyboard

Figure ARE keyboard

11. Czech (CZ) Keyboard

Figure CZ keyboard

12. Russian (RU) Keyboard

Figure RU keyboard

13. Portuguese (PO) Keyboard

Figure PO keyboard

14. Slovakian (SL) Keyboard

Figure SL keyboard

15. Italian (IT) Keyboard

Figure IT keyboard

16. French (FR) Keyboard

Figure FR keyboard

17. German (GR) Keyboard

Figure GR keyboard

18. Greek (GK) Keyboard

Figure GK keyboard

19. Canada French (CF) Keyboard

Figure CF keyboard

20. Hungarian (HG) Keyboard

Figure HG keyboard

21. Spanish (SP) Keyboard

Figure SP keyboard

22. Turkish (TR) Keyboard

Figure TR keyboard

3. Turkish F (TF-F) Keyboard

Figure TF-F keyboard

24. Swedish (SD) Keyboard

Figure SD keyboard

25. Belgian (BE) Keyboard

Figure BE keyboard

26. Yugoslavian (YU) Keyboard

Figure YU keyboard

27. Norwegian (NW) Keyboard

Figure NW keyboard

28. Scandinavian (ND) Keyboard

Figure ND keyboard

29. Canadian Multinational (AC) Keyboard

Figure AC keyboard

30. Canadian Bilingual (CB) Keyboard

Figure CB keyboard

31. Japanese (JP) Keyboard

Figure JP keyboard

32. Romania (RO) Keyboard

Figure RO keyboard

32. Bulgaria (BU) Keyboard

Figure BU keyboard

Appendix F

Series Screw Torque List (KTKAA)
Table F-1 Series Screw Torque List

SCREW P/N

SCREW SPEC

Q'ty

LOCATION

SCREW
TORQUE

LCD ASSY
MACK2002MG0

M2.0*3

LCD BRK TO LCD PANEL(R/L)

1.2~1.5kg

MAAA00153G0

M2.0*4

INVERTER TO COVER SUB ASSY (SINGLE
LAMP)

2.5~3.0 kg

MA0000061G0

M2.5*4

LCD BRACKET ASSY (R/L) TO COVER SUB
ASSY (LCD INSIDE 2+8)

2.5~3.0 kg

MACA00173G0

M2.5*5

LCD BEZEL TO COVER ASSY(TOP SIDE)

2.5~3.0 kg

MAC925006G0

M2.5*6 WHITE

LCD BEZEL TO COVER ASSY(DOWN SIDE)

2.5~3.0 kg

MB
MA0000081G0(M2*6) M2*4

BATTERY CONN TO MB

2.5~3.0 kg

MA0000081G0

M2*6

ODD CONN TO MB

2.5~3.0 kg

MA0000081G0

M2*6

1st HDD CONN TO MB

2.5~3.0 kg

MACA00023G0

M2.5*3

WLAN CARD TO MB

2.5~3.0 kg

MACA00023G0

M2.5*3

MDC TO MB

2.5~3.0 kg

AM01O000300

SPRING SCREW 4

CPU SINK ASSY TO CPU PLATE STANDOFF

2.5~3.0 kg

HDD ASSY
MAAA03032G0

M3*3

HDD BRACKET TO HDD (MAIN)

2.5~3.0 kg

MAAA03032G0

M3*3

HDD BRACKET TO HDD (2nd)

2.5~3.0 kg

ODD ASSY
MACK20251G0

M2*2.5

ODD BRK TO ODD MODULE

1.2~1.5kg

LOG UP
MA000009KG0

M 2.0* 6.8 (半牙)

SPEAKER R/L TO LOG UP

2.5~3.0 kg

MA0000061G0

M 2.5* 4

POWER PCB TO UP

2.5~3.0 kg

MA0000069G0

M 2* 4

TP BRK TO LOG UP

2.5~3.0 kg

LOG LOWER ASSY

Low Cost Los Angeles L450/L450D Maintenance Manual

[CONFIDENTIAL]

F-1

MA0000062G0

M 2.5*6

SADDLE TO LOWER

2.5~3.0 kg

LOGIC ASSY
MA0000061G0

M2.5*4

LCD HINGE (L/R) TO SADDLE

2.5~3.0 kg

MA0000061G0

M2.5*4

MB TO LOWER

2.5~3.0 kg

MA0000061G0

M2.5* 4

USB BOARD TO LOWER

2.5~3.0 kg

MACA00173G0

M2.5* 5

FAN TO LOWER

2.5~3.0 kg

MACA00023G0

M2.5* 3

ODD BRK TO LOWER

2.5~3.0 kg

MACA00023G0

M2.5* 3

LOWER (BATT HOUSING) TO UP

2.5~3.0 kg

MAC925010G0

M2.5X10

KB SUPPORT TO LOWER

2.5~3.0 kg

MAC925010G0

M2.5X10

LOWER TO UPPER

2.5~3.0 kg

MA0000062G0

M2.5X 6

HDD 1st DOOR TO LOWER

2.5~3.0 kg

MA0000061G0

M2.5* 4

HDD 2

MA0000035G0

M2.5X5.4(半牙)

RAM DOOR TO LOWER

2.5~3.0 kg

MACK2002MG0

M 2.0*3

KeyBoard to UP

1.2~1.5kg

F-2

[CONFIDENTIAL]

DOOR TO LOWER

2.5~3.0 kg

Low Cost Los Angeles L450/L450D Maintenance Manual

Appendix G

Appendix G Reliability
The following table shows MTBF (Mean Time Between Failures) for each component.

Table G-1 MTBF
Component

Time (hours)

LCD

10,000

Keyboard

60,000

HDD

300,000

Optical (DVD/CD) drive

60,000

AC adaptor

60,000

Low Cost Los Angeles L450/L450D Maintenance Manual

[CONFIDENTIAL]

G-1

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Toshiba Personal Computer Prol450D Maintenance Manual

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