IBM 2283 Hardware Maintenance Service page 70

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004 - DO ANY MESSAGES, ERROR CODES, OR
SYMPTOMS APPEAR? (YES, READ AHEAD. NO,
GO TO STEP 005)
Go to "Index of Symptoms, Messages, Error
Codes, or Beeps" on page 40.
End.
005 -
If the keyboard responds incorrectly, go to
"Keyboard" on page 69.
If monitor problems appear, such as jittering,
shifting, or being out of focus, go to "Monitor" on
page 75.
006 - DOES THE SYSTEM CONFIGURATION
REPORT CORRECTLY IDENTIFY THE DEVICES
INSTALLED IN SYSTEM? (YES, READ AHEAD.
NO, GO TO STEP 007.)
Select Diagnostics from the diagnostics program
menu.
Select and execute All Tests.
- Go to step 008.
007 -
The system configuration report shows only those
devices supported by the diagnostics program.
If a device is missing from the list and is not factory
installed, refer to the service manual provided for
that device.
008 - DO THE DIAGNOSTICS FINISH WITHOUT
ANY ERRORS? (YES, READ AHEAD. NO, GO TO
STEP 009.)
If the Diagnostics \ All Tests did not detect a failure
but the system still indicates a failure:
- Check all adapter card jumper settings.
- Check all adapter card switch settings.
- Check all adapter card cables and connectors.
Make sure that all of the above are set correctly
and show the correct voltages and continuity. Re-
place any defective cables or adapter cards. See
"Introduction" on page 116.
- Run the Diagnostics \ All Tests again.
38
IBM Desktop System HMM

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