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131
Devices
Keyboard and touchpad
Symptom / Error
Action in Sequence
System configuration does not match the
installed devices.
n
Run “Load Setup Defaults” using the BIOS Setup Utility, then reboot
the notebook.
n
Reconnect the hard disk drive and optical drive.
The external display does not work correctly.
n
Press Fn+F4 repeatedly to switch between LCD, external display, and
both displays.
n
Test or replace the system board.
USB does not work correctly.
n
Test or replace the USB board.
n
Test or replace the system board.
Printer problems.
n
Run the printer self-test.
n
Reinstall the printer driver.
n
Test or replace the printer cable.
n
Test or replace the printer.
n
Test or replace the system board.
Symptom / Error
Action in Sequence
The keyboard (one or more keys) does not work.
n
Reconnect the keyboard cable.
n
Test or replace the keyboard.
n
Test or replace the system board.
The touchpad does not work.
n
Reconnect the touchpad cable.
n
Test or replace the touchpad board.
n
Test or replace the system board.
Important
If you cannot find a symptom or an error in this list and the problem remains,
see
“Undetermined problems” on page 133
.
Содержание ENTJ75
Страница 1: ...ENTJ75 ENTJ76 ENTJ77 ENTJ78 SERVICEGUIDE ...
Страница 6: ...Contents iv ...
Страница 12: ...CHAPTER 1 System specifications 6 System block diagram ...
Страница 48: ...CHAPTER 2 System utilities 42 ...
Страница 140: ...CHAPTER 4 Troubleshooting 134 ...
Страница 141: ...CHAPTER5 135 Connector locations System board layout ...
Страница 145: ...CHAPTER6 139 FRU Field Replaceable Unit list Introduction Exploded diagram FRU list ...
Страница 152: ...CHAPTER 6 FRU Field Replaceable Unit list 146 ...
Страница 153: ...APPENDIXA 147 Test compatible components Introduction Microsoft Windows 7 Compatibility Test ...
Страница 156: ...APPENDIX A Test compatible components 150 ...
Страница 157: ...APPENDIXB 151 Online support information ...
Страница 163: ......
Страница 164: ...MAN NV5x SVC GDE R1 04 09 ...