Compaq 800 Series Maintenance And Service Manual page 58

Troubleshooting
Flowchart 2.18—Nonfunctioning Pointing Device
Pointing device
not operating
properly.
Connect notebook
to good external
pointing device.
External
device
works?
Y
Reseat internal
pointing device
connector
(if applicable).
OK?
Y
Done
2–28
N
Replace
system
board.
N
Replace internal
pointing device
or cable.
OK?
N
Replace
system
board.
Y
Done
Maintenance and Service Guide