IBM 2283 Hardware Maintenance Service page 103

Service level a
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007
Power off the system unit.
Check the mouse or receiver plug.
008 - ARE THERE ANY BROKEN PINS IN THE
MOUSE PLUG? (YES, GO TO STEP 010. NO,
READ AHEAD.)
Try with a known good mouse.
009 - DO THE ERROR SYMPTOMS STILL
REMAIN? (YES, READ AHEAD. NO, GO TO STEP
010.)
Replace the system board.
End.
010 -
Replace the mouse.
End.
011 -
Exit diagnostics program.
Ensure that the mouse driver is properly installed.
Go to step 002.
Check Procedures 71

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