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Chapter 4
79
I/O-related Symptoms
Symptom / Error
Action in Sequence
System configuration values does not
match the installed devices.
Run the Setup Utility, then press
F9
to load the system
defaults.
Reconnect hard disk/CD-ROM/diskette drives.
External display does not work correctly.
Press
Fn
+
F5
, LCD/CRT/both display switching
System board
USB does not work correctly
System board
Print problems
Run printer self-test.
Printer driver
Printer cable
Printer
System board
Keyboard (one or more keys) does not
work.
Reconnect the keyboard cable.
Keyboard
System board
Touchpad does not work.
Reconnect the touchpad cable.
Touchpad board
System board
Internal modem does not work correctly.
Modem port
Modem board
System board
Acer TM 4520 SG.book Page 79 Friday, June 22, 2007 5:43 PM
Summary of Contents for Extensa 4120
Page 6: ...VI ...
Page 10: ...X Table of Contents ...
Page 36: ...26 Chapter 2 ...
Page 93: ...Chapter 5 83 System Block Diagram System Block Diagram and Board Layout Chapter 5 ...
Page 98: ...88 Chapter 6 Aspire 5910 Exploded Diagram ...
Page 100: ...90 Chapter 6 Cables Category No Part Name and Description Acer Part No ...
Page 101: ...Chapter 6 91 Fan Hard Disk Drive Category No Part Name and Description Acer Part No ...
Page 102: ...92 Chapter 6 Keyboard Category No Part Name and Description Acer Part No ...
Page 103: ...Chapter 6 93 Keyboard TM LCD Panel Category No Part Name and Description Acer Part No ...
Page 104: ...94 Chapter 6 Mechanical parts Category No Part Name and Description Acer Part No ...
Page 105: ...Chapter 6 95 Memory Optical Disc Drive Category No Part Name and Description Acer Part No ...
Page 106: ...96 Chapter 6 Power related Processor Category No Part Name and Description Acer Part No ...
Page 107: ...Chapter 6 97 Screws Miscellaneous Category No Part Name and Description Acer Part No ...
Page 108: ...98 Chapter 6 Category No Part Name and Description Acer Part No Audio related Boards ...
Page 109: ...Chapter 6 99 Cables Category No Part Name and Description Acer Part No ...
Page 110: ...100 Chapter 6 Fan Hard Disk Drive Category No Part Name and Description Acer Part No ...
Page 111: ...Chapter 6 101 Keyboard Category No Part Name and Description Acer Part No ...
Page 112: ...102 Chapter 6 Keyboard TM LCD Panel Category No Part Name and Description Acer Part No ...
Page 113: ...Chapter 6 103 Mechanical parts Category No Part Name and Description Acer Part No ...
Page 114: ...104 Chapter 6 Memory Optical Disc Drive Category No Part Name and Description Acer Part No ...
Page 115: ...Chapter 6 105 Power related Processor Category No Part Name and Description Acer Part No ...
Page 116: ...106 Chapter 6 Screws Miscellaneous Category No Part Name and Description Acer Part No ...
Page 122: ...112 Appendix A ...
Page 136: ...126 Appendix C ...
Page 143: ...Index 133 ...