Compaq 407511-002 manual Flowchart 2.18-Nonfunctioning Keyboard

Troubleshooting

Flowchart 2.18—Nonfunctioning Keyboard

Keyboard

not operating

properly.

Connect computer

to good external

keyboard.

	N
External		Replace
device		system
works?		board.

Y

Reseat internal

keyboard connector (if applicable).

N

OK?

Y

Done

Replace internal

keyboard or

cable.

Y

OK?

N

Replace

system

board.

Done

2–24 Maintenance and Service Guide