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Chapter 3
5.
Remove the ODD PCB bo
ard.
6.
Release the ODD door latch on one side.
7.
Then remove the ODD door carefully
.
TM420.book Page 76
Monday, Septembe
r 23, 2002 10:27 AM
Contents
Main
Page
Copyright
Disclaimer
Conventions
Preface
Page
Table of Contents
Chapter 1 System Specifications 1
Chapter 2 System Utilities 39
Chapter 3 Machine Disassembly and Replacement 61
Page
System Specifications
Chapter 1
Features
Performance
Display
Expansion
Keyboard and Pointing Device
I/O Ports
Chapter 1 3
SG_TM420_Ch1.fm Page 3 Thursday, September 26, 2002 9:23 AM
System Block Diagram
CardBus Controller
SMsC LPC47N227
EC NS87591S
4Chapter 1
Board Layout
Top View
Chapter 1 5
SG_TM420_Ch1.fm Page 5 Thursday, September 26, 2002 9:23 AM
Bottom View
6Chapter 1
Outlook View
Front View
Chapter 1 7
Page
Chapter 1 9
Right Panel
10 Chapter 1
Rear Panel
Chapter 1 11
Bottom Panel
12 Chapter 1
Indicators
The computer has seven easy-to-read status icons below the display screen.
The status LCD displays icons that show the status of the computer and its components.
Chapter 1 13
Lock Keys
The keyboard has three lock keys which you can toggle on and off.
Embedded Numeric Keypad
Chapter 1 15
Windows Keys
The keyboard has two keys that perform Windows-specific functions.
Hot Keys
Page
The Euro Symbol
Launch Keys
Page
Touchpad
Touchpad Basics
Page
Chapter 1 23
Hardware Specifications and Configurations
Processor
BIOS
Second Level Cache
System Memory
24 Chapter 1
Memory Combinations
LAN Interface
Modem Interface
Chapter 1 25
26 Chapter 1
Chapter 1 27
Audio Interface
Video Interface
Video Resolutions Mode (for both LCD and CRT)
Parallel Port
28 Chapter 1
USB Port
PCMCIA Port
System Board Major Chips
Keyboard
Page
30 Chapter 1
Electrical Characteristics
I
I
rms
rms
I
Page
32 Chapter 1
LCD
AC Adapter
Chapter 1 33
Power Management
Environmental Requirements
AC Adapter
34 Chapter 1
Mechanical Specification
Memory Address Map
Environmental Requirements
Chapter 1 35
36 Chapter 1
IRQ Assignment Map
Page
Page
System Utilities
Chapter 2
BIOS Setup Utility
Navigating the BIOS Utility
Page
Chapter 2 41
Info.
This menu provides you the information of the system.
Page
Page
Page
System Devices
46 Chapter 2
Security
Setting a Password
Removing a Password
Changing a Password
Page
Page
Exit
BIOS Flash Utility
System Diagnostic Diskette
Page
Running Diagnostics Program
Page
Page
Page
Page
Page
Page
Chapter 3
Machine Disassembly and Replacement
General Information
Before You Begin
Chapter 3 63
TM420.book Page 63 Monday, September 23, 2002 10:27 AM
Disassembly Procedure Flowchart
64 Chapter 3
TM420.book Page 64 Monday, September 23, 2002 10:27 AM
Screw List
Page
Removing the Optical Module/HDD Module and Memory
Removing the Keyboard/ LCD Module and VGA Board
Removing the Keyboard
Removing the LCD module and VGA Board
Page
Disassembling the Main Unit
Page
Page
Page
Page
Disassembling the LCD Module
Disassembling the External Modules
Page
Troubleshooting
Chapter 4
System Check Procedures
External Diskette Drive Check
External CD-ROM/DVD-ROM Drive Check
Keyboard or Auxiliary Input Device Check
Memory Check
Power System Check
Check the Power Adapter
Check the Battery Pack
Touchpad Check
Display Check
Sound Check
Power-On Self-Test (POST) Error Message
84 Chapter 4
Index of Error Messages
Error Message List
Chapter 4 85
Error Message List
86 Chapter 4
Index of Symptom-to-FRU Error Message
LCD-Related Symptoms
Indicator-Related Symptoms
Power-Related Symptoms
Chapter 4 87
PCMCIA-Related Symptoms
Memory-Related Symptoms
Speaker-Related Symptoms
Power Management-Related Symptoms
88 Chapter 4
Peripheral-Related Symptoms
Keyboard/Touchpad-Related Symptoms
Modem-Related Symptoms
Intermittent Problems
Undetermined Problems
Chapter 4 91
POST Task Routines
92 Chapter 4
Chapter 4 93
94 Chapter 4
Chapter 4 95
Index of Flash BIOS Error Message
Index of flashing BIOS Error Message using PHLASH.EXE.
Page
Jumper and Connector Locations
Chapter 5
Chapter 5 97
Top View
Page
Chapter 5 99
Bottom View
Page
FRU (Field Replaceable Unit) List
Chapter 6
Page
Page
Page
Page
Page
Page
108 Chapter 6
Chapter 6 109
110 Chapter 6
Chapter 6 111
112 Chapter 6
Chapter 6 113
114 Chapter 6
Chapter 6 115
116 Chapter 6
Chapter 6 117
Model Definition and Configuration
Appendix A
Appendix A 118
TravelMate 420 Series
Main Features
Page
Test Compatible Components
Appendix B
122 Appendix B
Microsoft Windows XP Home Environment Test
Appendix B 123
124 Appendix B
Appendix B 125
Microsoft Windows XP Pro Environment Test
126 Appendix B
Appendix B 127
Microsoft Windows 2000 Environment Test
128 Appendix B
Online Support Information
Appendix C
Page
A
Index
B
C
D
L
M
N
O
P
