Acer Keyboard Darfon German Technical Information PDF herunterladen (Seite 84)

78 Chapter 4

Intermittent Problems

Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a

hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement

should be considered only when a recurring problem exists.

When analyzing an intermittent problem, do the following:

1. Run the diagnostic test for the system board in loop mode at least 10 times.

2. If no error is detected, do not replace any FRU.

3. If any error is detected, replace the FRU. Rerun the test to verify that there are no more errors.

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 121 122

Acer TravelMate 4400 Series 1
Revision History 2
Copyright 3
Disclaimer 3
Conventions 4
System Specifications 7
Communication 8
I/O Ports 8
Bolsena Block Diagram 9
Board Layout 10
Bottom View 11
6 Chapter 1 12
A TravelMate tour 13
Closed Front View 14
# Icon Item Description 14
# Item Description 14
Left View 15
Right View 16
Rear Panel 17
Bottom Panel 18
Indicators 19
Launch Keys 20
Touchpad 21
Touchpad Basics 21
16 Chapter 1 22
Using the Keyboard 23
Windows Keys 24
Hot Keys 25
20 Chapter 1 26
Special Key 27
Chapter 1 25 31
Combo Drive Interface 31
DVD-Dual Interface 31
Hard Disk Drive Interface 31
26 Chapter 1 32
Audio Interface 32
Video Interface 32
Video Memory 32
Chapter 1 27 33
USB Port 33
IEEE 1394 Port 33
PCMCIA Port 33
System Board Major Chips 33
28 Chapter 1 34
Keyboard 34
LCD 15 inch 34
30 Chapter 1 36
AC Adaptor 36
System Power Management 36
LCD Inverter 36
System Utilities 37
Navigating the BIOS Utility 38
Advanced 42
Chapter 2 37 43
Disabled or Enabled 43
Security 44
Setting a Password 45
Removing a Password 46
Changing a Password 46
42 Chapter 2 48
Chapter 2 43 49
BIOS Flash Utility 50
Chapter 3 51
General Information 52
Chapter 3 47 53
48 Chapter 3 54
Chapter 3 49 55
Screw List 55
Removing the Battery Pack 56
Removing the HDD Module 57
Removing the ODD Module 59
Removing the LCD Module 59
Disassembling the Main Unit 61
58 Chapter 3 64
Disassembling the LCD Module 65
60 Chapter 3 66
Disassembling the HDD Module 67
62 Chapter 3 68
Troubleshooting 69
System Check Procedures 70
Power System Check 71
Touchpad check 72
Index of Error Messages 74
Chapter 4 69 75
Error Message List 75
Phoenix BIOS Beep Codes 76
Chapter 4 71 77
72 Chapter 4 78
Chapter 4 73 79
74 Chapter 4 80
LCD-Related Symptoms 80
Indicator-Related Symptoms 80
Power-Related Symptoms 80
76 Chapter 4 82
Peripheral-Related Symptoms 82
Chapter 4 77 83
Problems” on page 79 83
Modem/LAN-Related Symptoms 83
Intermittent Problems 84
Undetermined Problems 85
CD to Disk Recovery 86
Chapter 4 81 87
82 Chapter 4 88
Disk to Disk Recovery 89
Chapter 4 85 91
86 Chapter 4 92
Chapter 5 93
88 Chapter 5 94
90 Chapter 5 96
Chapter 6 97
Exploded Diagram 98
Chapter 6 92 99
93 Chapter 6 100
TravelMate 4400 100
Chapter 6 94 101
95 Chapter 6 102
Chapter 6 96 103
97 Chapter 6 104
Chapter 6 98 105
99 Chapter 6 106
TravelMate 4500 106
Chapter 6 100 107
101 Chapter 6 108
Chapter 6 102 109
103 Chapter 6 110
Chapter 6 104 111
105 Chapter 6 112
Chapter 6 106 113
TravelMate 4400 Series 114
Appendix A 114
Test Compatible Components 115
Microsoft 116
XP Pro Environment Test 116
Appendix B 121 117
122 Appendix B 118
Appendix B 123 119
124 Appendix B 120
Online Support Information 121
126 Appendix C 122

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