Compal JHL90 - 5. Keyboard Troubleshooting

JHL90 Service Manual
5. Keyboard Troubleshooting
START
Perform external keyboard cheek
(Procedure 1)
Does the external
keyboard function
ok?
Perform diagnostic check
(Procedure 2)
Was a keyboard problem
detected?
Keyboard is not
faulty. Continue
troubleshooting
refer to Figure 2.1
Perform connector and
replacement check (Procedure 3)
Replace system board
END
No
No
Yes
Yes
Figure 6-4 Keyboard troubleshooting process
6-13