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62 Chapter 3

General Information

Before You Begin

Before proceeding with the disassembly procedure, make sure that you do the following:

1. Turn off the power to the system and all peripherals.

2. Unplug the AC adapter and all power and signal cables from the system.

3. Remove the battery pack.

NOTE: TravelMate 420 series product uses mylar or tape to fasten the FFC/FPC/connectors/cable, you may

need to tear the tape or mylar before you disconnect different FFC/FPC/connectors.

TM420.book Page 62 Monday, September 23, 2002 10:27 AM

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 139 140

Acer TravelMate 420 Series 1
Revision History 2
Copyright 3
Disclaimer 3
Conventions 4
Table of Contents 7
System Specifications 9
Expansion 10
Keyboard and Pointing Device 10
I/O Ports 10
System Block Diagram 11
Board Layout 12
Outlook View 14
Chapter 1 7 15
Left Panel 16
Right Panel 17
Rear Panel 18
Bottom Panel 19
Indicators 20
Lock Keys 21
Embedded Numeric Keypad 22
Windows Keys 23
Hot Keys 24
Chapter 1 17 25
The Euro Symbol 26
Launch Keys 27
E-Mail Detection 28
Touchpad 29
22 Chapter 1 30
Chapter 1 25 33
DVD-ROM Interface 33
26 Chapter 1 34
Chapter 1 31 39
Electrical specification 39
°C (storage package) 41
34 Chapter 1 42
Mechanical Specification 42
Memory Address Map 42
I/O Address Map 42
Environmental Requirements 42
Chapter 1 35 43
36 Chapter 1 44
IRQ Assignment Map 44
Chapter 1 37 45
DMA Channel Assignment 45
38 Chapter 1 46
System Utilities 47
Chapter 2 41 49
42 Chapter 2 50
Chapter 2 43 51
System Devices 53
46 Chapter 2 54
Setting a Password 55
Removing a Password 56
Changing a Password 56
50 Chapter 2 58
Chapter 2 51 59
BIOS Flash Utility 60
System Diagnostic Diskette 60
Running Diagnostics Program 62
Chapter 2 59 67
60 Chapter 2 68
Chapter 3 69
General Information 70
Removing the Battery Pack 73
Removing the Optical Module 74
Removing the HDD module 74
Removing the Memory 74
Removing the Keyboard 75
Disassembling the Main Unit 77
Disassembling the LCD Module 82
Disassembling the HDD Module 83
76 Chapter 3 84
5. Remove the ODD PCB board 84
Troubleshooting 85
System Check Procedures 86
Memory Check 87
Power System Check 87
Check the Power Adapter 88
Touchpad Check 89
Display Check 89
Sound Check 90
Index of Error Messages 92
Chapter 4 85 93
Error Message List 93
86 Chapter 4 94
LCD-Related Symptoms 94
Indicator-Related Symptoms 94
Power-Related Symptoms 94
Chapter 4 87 95
PCMCIA-Related Symptoms 95
Memory-Related Symptoms 95
Speaker-Related Symptoms 95
Intermittent Problems 97
Undetermined Problems 98
POST Task Routines 99
92 Chapter 4 100
Chapter 4 93 101
94 Chapter 4 102
Chapter 4 95 103
96 Chapter 4 104
Top View 105
Chapter 5 105
SW1 Settings (Lid switch) 106
SW2 Settings 106
Bottom View 107
100 Chapter 5 108
Chapter 6 109
Exploded Diagram 110
LOGIC UP ASSY 111
LOGIC UP ASSY (Wireless) 112
LCD 14.1” 113
DVD ASSY 114
CD-ROM ASSY 114
Combo ASSY 115
108 Chapter 6 116
Chapter 6 109 117
110 Chapter 6 118
Chapter 6 111 119
112 Chapter 6 120
Chapter 6 113 121
114 Chapter 6 122
Chapter 6 115 123
116 Chapter 6 124
Chapter 6 117 125
TravelMate 420 Series 126
Appendix A 126
Main Features 127
Appendix A 120 128
Test Compatible Components 129
Microsoft 130
XP Home Environment Test 130
Appendix B 123 131
124 Appendix B 132
XP Pro Environment Test 133
126 Appendix B 134
2000 Environment Test 135
128 Appendix B 136
Online Support Information 137
130 Appendix C 138

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