IBM Personal Computer AT Manual To Operations page 372

13
Did you receive any of the following error
messages during diagnostic testing?
199
432
901
1001
1401
YES Go to Step 14.
NO If you are still having a problem, go to
Step 16.
14
Leave the printer cable disconnected from your
printer and run the system tests again. Verify
that the list of installed devices and options is
correct. (Your printer will be missing from the
list).
15
Did you receive any error when you ran the system
diagnostic tests this time?
YES Have your system unit serviced. Be sure
your Key Lock key is with your system
unit.
NO Have your system unit, printer and cable
serviced. Be sure your Key Lock key is
with your system unit.
8000-6 Test