Printronix P5000 Maintenance Manual page 45

Message
48V PWR FAIL*
733 DP FIFO Busy*
Table 2. Message List
Explanation
48 Volt Power Failed: an
internal power failure.
There is a timing problem in
the Engine Controller
firmware.
List Of Messages
Solution
1. Power off the printer. Remove the
paper path or pedestal top cover.
Check that power supply
connector P101 is fully seated in
connector J101 on the controller
board.
2. If the printer has the expansion-
CT board, make sure the 60-pin
expansion adapter is correctly
and fully seated in the controller
board and the CT board.
3. Power on the printer. If the
message appears, replace the
hammer bank logic cable
assembly (P108) and the power
cable assembly (P105). (Refer to
Appendix A.)
4. Power on the printer. If the
message appears, replace the
power supply board.
5. Power on the printer. If the
message appears, replace the
controller board. Record the
message and return it with
defective board.
6. Power on the printer. If the
message appears, replace
shuttle frame assembly.
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 flash memory.
3. Power on the printer. Run the
print job again. If the message
appears, replace the controller
board. Record the message and
return it with the defective board.
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