85
Keyboard
001 - START
q
Power off the system unit and make sure that the
keyboard plug is connected properly.
002 -
q
Insert the diagnostics diskette into the diskette drive and
power on the system unit.
q
Select Interactive Tests menu, then execute Keyboard
test.
003 - DOES THE KEYBOARD FUNCTION CORRECTLY?
(YES, READ AHEAD. NO, GO TO STEP 004.)
q
Keyboard is functioning normally.
q
End.
004 - ARE THERE ANY STUCK KEYS OR ANY GRIME IN
THE GAP OF KEYCAPS? (YES, READ AHEAD.
NO, GO TO STEP 005.)
q
Power off the system unit. Carefully remove the grime
and solve the stuck keys problem.
q
Go to step 001.
005 - ARE THERE ANY BROKEN PINS IN THE
KEYBOARD PLUG? (YES, GO TO STEP 007. NO,
READ AHEAD.)
q
Try with a known good keyboard.
006 - DOES THE ERROR SYMPTOM STILL REMAIN?
(YES, READ AHEAD. NO, GO TO STEP 007.)
q
Replace the system board.
q
End.
007 -
q
Replace the keyboard.
q
End.
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