Table of Contents

Laptop Repair Made Easy

Laptop Repair Made Easy

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Chapter 4 Troubleshooting 75

System Check Procedures 76

External Diskette Drive Check 76

External CD-ROM/DVD-ROM Drive Check 76

Keyboard or Auxiliary Input Device Check 77

Memory Check 77

Power System Check 77

Touchpad Check 79

Display Check 79

Sound Check 80

Power-On Self-Test (POST) Error Message 81

Index of Error Messages 82

Index of Symptom-to-FRU Error Message 84

Intermittent Problems 87

Undetermined Problems 88

POST Task Routines 89

Index of Flash BIOS Error Message 93

Chapter 5 Jumper and Connector Locations 95

Top View 95

SW1 Settings (Lid switch) 96

SW2 Settings 96

Bottom View 97

Chapter 6 FRU (Field Replaceable Unit) List 99

Appendix A Model Definition and Configuration 118

TravelMate 420 Series 118

Main Features 119

Appendix B Test Compatible Components 121

Microsoft® Windows® XP Home Environment Test 122

Microsoft® Windows® XP Pro Environment Test 125

Microsoft® Windows® 2000 Environment Test 127

Appendix C Online Support Information 129

Index 131

Chapter 1

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