Xerox ColorQube 9303 Series - Page 59

February 2013
2-35
ColorQube® 9303 Family
01J, 01K
Status Indicator RAPs
Figure 1 Component location
01K -50V Distribution RAP
Use this RAP to diagnose -50V supply and distribution faults.
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.
To view the -50V generation, refer to WD 1.3.
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 con
-
nected at each end, and should be undamaged. This cable carries power control signals from
and to the power supply unit.
The cable is good.
YN
Install a new drum driver power supply interface cable, PL 1.15 Item 10.
Check the red LED on top of the power supply unit, Figure 1 that indicates that the +50V sup-
ply is available in the power supply unit. The red LED is lit.
YN
The red LED is extinguished and the AC supply is good. Check the PEST fault history,
dC123.
There are hard PEST faults shown.
YN
Perform the 01-542-00, 01-546-00, 50V Failure RAP.
Perform the RAP(s) given by the hard PEST fault code(s), then return to this RAP.
Check that the -50V is within tolerance, -50V +/- 2% at JDC1 pin 18. Refer to WD 1.4. The -
50V is good.
YN
Install a new power supply unit, PL 1.15 Item 2.
Go to PWB Checks.
PWB Checks
Check the PWB’s below to determine which PWB has the distribution fault. Follow the distribu-
tion back to the supply. Repair the wiring, REP 1.1 or install a new PWB or power supply unit,
PL 1.15 Item 2 as necessary. Refer to GP 15 for the location and function of the LED’s on the
PWB’s.
IME Controller PWB
• To view the -50V distribution from the power supply unit, refer to WD 1.4.
• For -50V faults on the IME controller PWB, refer to:
– WD 9.5
– WD 9.6
• The quad wave amp PWB, PL 92.10 Item 3 is driven from -50V from the IME controller
PWB.
• Repair the wiring as necessary, REP 1.1.
• If necessary, install a new IME controller PWB, PL 92.10 Item 1.
Red LED
Power supply unit