Mouse - IBM MICRO TOWER 2169 Hardware Maintenance Manual

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.
q

Mouse

NOTE: A sticking key button can cause the mouse to operate
incorrectly. If you suspect this, go to "Keyboard" on
page 96.
001 - START
q
Make sure that the mouse ball turns freely.
q
Make sure that the mouse plug connects properly.
002 -
q
Power off the system unit.
q
Insert the diagnostics diskette into the diskette drive.
q
Power on the system unit.
q
Select Interactive Tests menu, then execute Mouse test.
003 - DO YOU SEE THE MOUSE CURSOR IN THE
DIAGNOSTICS PROGRAM? (YES, READ AHEAD.
NO, GO TO STEP 011)
97