Test 1200 - IBM Personal Computer AT Manual To Operations

Test 1200
Press Enter
(..-.J )
to start this test.
DID YOU RECEIVE A 12XX ERROR?
XX:XX:XX
ERROR
SYSTEM UNIT 12XX
END - TEST 1200
PRESS "ENTER" TO CONTINUE
?
(X can be any number.)
YES Have your system unit serviced. Be sure your
Key Lock key is with your system unit.
NO You have completed the serial portion of the
Alternate Serial/Parallel Adapter tests. Press
Enter
(..-.J )
and refer to the screen for the next
test.
Test 1200-1