Compaq NC4000 manual Flowchart 2.18-Nonfunctioning Keyboard

Troubleshooting

Flowchart 2.18—Nonfunctioning Keyboard

Keyboard

not operating

properly.

Connect notebook

to good external

keyboard.

N

External

device

works?

Y

Reseat internal

keyboard connector (if applicable).

Replace system board.

N

OK?

Y

Done

Replace internal

keyboard or

cable.

Y

OK?

N

Replace system board.

Done

2–28 Maintenance and Service Guide