Compaq 800 Series Maintenance And Service Manual page 57

Flowchart 2.17—Nonfunctioning Keyboard
Keyboard
not operating
properly.
Connect notebook
to good external
keyboard.
External
device
works?
Y
Reseat internal
keyboard
connector
(if applicable).
OK?
Y
Done
Maintenance and Service Guide
N
Replace
system
board.
N
Replace internal
keyboard or
cable.
OK?
N
Replace
system
board.
Y
Done
Troubleshooting
2–27