Keyboard Troubleshooting - Compal JHL90 Service Manual

JHL90 Service Manual
5.

Keyboard Troubleshooting

START
Perform external keyboard cheek
(Procedure 1)
Does the external
keyboard function
ok?
No
Perform diagnostic check
(Procedure 2)
Yes
Keyboard is not
faulty. Continue
Was a keyboard problem
No
troubleshooting
detected?
refer to Figure 2.1
Yes
Perform connector and
replacement check (Procedure 3)
Replace system board
END
Figure 6-4 Keyboard troubleshooting process
6-13