IBM Infoprint 6500-v05 Maintenance Manual page 181

Symptom
Operator panel blank
Table 5. General Symptom List
1. Power off and unplug the printer. Remove the paper guide assembly or pedestal top cover. Check
all cable connections into the controller board; make sure the operator panel cable is seated in
connector J110 on the controller board.
2. If the printer has the coax/twinax expansion board, check the adapter connection to the controller
board. Make sure the 60-pin expansion adapter is correctly seated in the controller board and the
coax/twinax expansion board.
3. Plug in the printer and power it on. Inspect the operator panel display and cooling fans. If the
operator panel is blank and the cooling fans come on, replace the operator panel cable assembly
and/or the operator panel, as required.
4. Check the shuttle for electrical shorts (page 252).
5. Plug in the printer and power it on. If the operator panel is blank and the fans do not come on, do the
power supply operational check (page 258). If the power supply fails the check, replace it. If it
passes the check, go to the next step.
6. Cycle power. If the operator panel is blank, replace the controller board (page 319). After replacing
the controller board, DO NOT make the printer READY, but proceed immediately to the next step.
7. Download and install the latest code from IBM First (page 231).
8. Power on the printer in download mode and load flash memory (page 238).
9. If you encounter the failure after replacing the controller board, reinstall the original controller board
and contact your DDS and Second Level Support.
Corrective Action
General Symptom List
181