Xerox ColorQube 9303 Series - Page 39

February 2013
2-15
ColorQube® 9303 Family
01-542-00, 01-546-00
Status Indicator RAPs
01-542-00, 01-546-00 50V Failure RAP
01-542-00 The IME +50V or -50V supply has shutdown unexpectedly.
01-546-00 The IME +50V or -50V supply has failed to switch on.
Initial Actions
If possible, repair all the current listed faults, before performing this procedure, refer to dC123.
Procedure
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP 14. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
Switch off the machine GP 14. Refer to WD 1.4 and WD 9.4. Check the condition of the drum
driver power supply interface cable between PJDC2 on the power supply unit and PJ902 on
the drum driver PWB. It should be correctly and securely connected at each end, and should
be undamaged, PL 1.15 Item 10.
The ribbon cable is secure and in good condition.
YN
Correct the cable connection or install a new drum driver power supply interface cable, PL
1.15 Item 10, as necessary.
Switch on the machine GP 14. The fault code is still present.
YN
Perform SCP 5 Final Actions.
Check the 3 LEDs on the power supply are illuminated, Figure 1. The 3 LEDs are on and
remain illuminated after 60 seconds.
YN
Either the power supply unit is not enabled or is faulty or there is a short circuit on the
+50V or -50V output circuits.
NOTE: The voltage on PJ902 at pin 28 must be greater than +2.5V to enable +/-50V out-
puts.
Switch on the machine GP 14. Go to WD 1.4 and WD 9.4. Check the voltage on PJ902
pin 28 on the drum driver PWB.
The voltage is greater than +2.5V.
YN
Refer to WD 1.4 and WD 9.4. Check the drum driver power supply interface cable for
short circuits on PJ902 at pin 28 and pin 29.
The cable is good.
YN
Repair the drum driver power supply interface cable as necessary, REP 1.1. If
necessary, install a new drum driver power supply interface cable, PL 1.15 Item
10.
Install a new drum driver PWB, PL 1.15 Item 4.
The control voltages are correct. If the +50V or -50V supplies are still not present, either
there is a power supply unit fault or there is a short circuit. Go to 01-530-00 +/-50V Short
Circuit and Overload RAP.
Refer to WD 1.4 and WD 9.4. Check the red LED, Figure 1, is illuminated and the voltage on
PJ902 pin 26 on the Drum driver PWB is greater than +2.5V.
The LED is illuminated and the
voltage is greater than 2.5V.
YN
Switch off the machine GP 14. Check PJ902 pin 26 on the drum driver PWB. Pin 26 is
shorted to ground.
YN
Install a new power supply unit, PL 1.15 Item 2.
Repair the wiring, REP 1.1.
Install a new drum driver PWB, PL 1.15 Item 4.
Figure 1 Component location
Three LEDs
Green = +3.3V ESTAR
Yellow = +5V, Red = +50V
Power supply unit
A
A