Printronix P5000 Maintenance Manual page 61

Message
HMR BANK FAN FLT
ILL EXT BUS ACC*
ILL INST ACCSS*
Table 2. Message List
Explanation
Hammer Bank Fan Fault.
Sensors cannot detect
current in the fan circuit.
Illegal External Bus Access.
Firmware error on the
controller board.
Illegal Instruction Accessed.
Firmware error on the
controller board.
List Of Messages
Solution
1. Cycle power. If the message
appears, press CLEAR. If the
message does not clear, go to
step 2.
2. Power off the printer. Remove the
paper path or pedestal top cover.
Disconnect connector P107 from
the controller board. Test
connector P107/HBF for shorts or
opens. (Refer to the Main Wire
Harness Test Tables in Appendix
A.) Replace components that fail
test.
3. Make sure P107/HBF has a good
connection at J107 on the
controller board.
4. Inspect for obstructions of
airways and vents. Remove
obstructions.
5. Power on the printer. If the
message appears, replace the
controller board. Record the
message and return it with
defective board.
1. Cycle power. Run the print job
again. If the message appears,
download the emulation software
again (page 150).
2. Cycle power. Run the print job
again. If the message appears,
replace the controller board.
Record the message and return it
with defective board.
1. Cycle power. Run the print job
again. If the message appears,
download the emulation software
again (page 150).
2. Cycle power. Run the print job
again. If the message appears,
replace the controller board.
Record the message and return it
with defective board.
61