Printronix P5000 Maintenance Manual page 94

Chapter 3
Troubleshooting Other Symptoms
Symptom
No power, and control panel
blank, and card cage fan not
running
94
Table 3. General Symptom List
Power Failures
1. Check that the AC power outlet has power. Restore AC
power if necessary.
2. Unplug the printer AC power cord from the printer (leave it
plugged into the power outlet) and check for AC power at
the printer end of the cord. If there is no power through the
AC power cord, replace it. Plug the AC power cord into the
printer and power outlet.
3. Remove the paper path or pedestal top cover. Verify that
the AC-In power cable and the AC power input cables are
connected to the on/off switch-circuit breaker. (See Figure
44, page 246.) Make sure all ground connections are
clean and tight.
4. Check that AC-in power cable connector P1 is connected
to J1 on the power supply board. Reseat the connector.
5. Check that power supply cable connector P101 is
connected to J101 on the controller board. Reseat the
connector.
6. Check all cable connections on the controller board.
7. If the printer has the expansion-CT board, make sure the
60-pin expansion adapter is correctly seated in the
controller board and the CT board.
8. Disconnect AC-in power supply cable connector P1. Set
the circuit breaker to 1 (on). Measure AC voltage at pins 1
and 2 of connector P1. If no voltage, replace the circuit
breaker. If there is voltage, replace the power supply
board.
Solution