Dead A1000 🙁
Karl,
Does your friend's A1000 have the PAL grounding modification?
The A1000 does use the same 8520's that the A500/A2000. The usual way to
check them is to swap them in the machine and see if the symptoms change.
If so, at least one of them is bad.
The monitor will be fine. The mouse will work electrically, but, if it
has a 90-degree plug on it, your friend might need to experiment with
different physical arrangements.
David