Aspire 7720 / 7720G Service Guide
Page 78
... Test. 3. Replace the external diskette drive/CD-ROM module. 3. Boot from the keyboard is required. Keyboard or Auxiliary Input Device Check Remove the external keyboard if the internal keyboard is correct, run the Keyboard Test. If the keyboard cable connection is to it . Reconnect the keyboard cables. 2. NOTE... in the message window. If an error occurs, reconnect the connector on the system board. Replace the main board. If the tests detect a keyboard problem, do the following auxiliary input devices are supported by this computer: T Numeric keypad T External...
... Test. 3. Replace the external diskette drive/CD-ROM module. 3. Boot from the keyboard is required. Keyboard or Auxiliary Input Device Check Remove the external keyboard if the internal keyboard is correct, run the Keyboard Test. If the keyboard cable connection is to it . Reconnect the keyboard cables. 2. NOTE... in the message window. If an error occurs, reconnect the connector on the system board. Replace the main board. If the tests detect a keyboard problem, do the following auxiliary input devices are supported by this computer: T Numeric keypad T External...
Aspire 7720 / 7720G Service Guide
Page 83
..., no message will show message. Hard disk drive System board Stuck Key see "Keyboard or Auxiliary Input Device Check" on page 72. Keyboard locked - Unlock key switch Unlock external keyboard Monitor type does not match CMOS - Replace and run Setup Replace RTC battery and Run BIOS Setup Utility to reconfigure system time, then reboot system...
..., no message will show message. Hard disk drive System board Stuck Key see "Keyboard or Auxiliary Input Device Check" on page 72. Keyboard locked - Unlock key switch Unlock external keyboard Monitor type does not match CMOS - Replace and run Setup Replace RTC battery and Run BIOS Setup Utility to reconfigure system time, then reboot system...