Xerox ColorQube 9303 Series - Page 47

February 2013
2-23
ColorQube® 9303 Family
01D
Status Indicator RAPs
01D +5V Distribution RAP
Use this RAP to diagnose +5V supply and distribution faults.
NOTE: Refer to RAP 12A-171 to diagnose +5V supply and distribution faults on the HVF. Refer
to RAP 12D-110 to diagnose +5V supply and distribution faults on the LCSS.
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.
NOTE: To view the +5V supply generation, refer to WD 1.3.
The yellow LED on top of the power supply unit, Figure 1, indicates that the +5V supply is
available in the power supply unit.
The green LED is lit but the yellow led is extinguished.
YN
Go to the 01C 3.3V Distribution RAP.
Switch off, then switch on the machine, GP 14. Check the PEST fault history, dC123. There
are hard PEST faults shown.
YN
Check that the +5V is within tolerance, +5V +/- 2% at JDC1 pin 17. Refer to WD 1.4. The
+5V is good.
YN
Install a new power supply unit, PL 1.15 Item 2.
CAUTION
Do not disconnect or connect PJ’s while the machine has power on, to avoid equipment
damage.
Check for short circuits. Refer to 01-525-00 +24V, +/-12V, +5V Short Circuit and Overload
RAP, +5V short circuit check.
The circuit is good.
YN
Switch off the machine, GP 14. Disconnect connectors on the power supply to iso-
late the PWB’s that follow:
• PJDC1 to isolate the IME controller PWB.
• PJDC3 to isolate drum driver PWB and media path driver PWB.
• PJDC4 to isolate the power distribution PWB and HDD.
Repair the short circuit. Refer to REP 1.1. Install new parts as necessary.
Determine which PWB has the distribution fault, go to PWB Checks.
Perform the RAP(s) given by the hard PEST fault code(s), then return to this RAP.
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.
NOTE: Many PWB’s have distribution fuses.
Select the required PWB:
• IME Controller PWB
• Drum Driver PWB
• Media Path Driver PWB
• Power Distribution PWB
• 3 Tray Module PWB
• Registration / Pre-heat Interface PWB
• Marking Unit Driver PWB
• Tray 5 Control PWB
• Single Board Controller PWB
• Scanner PWB
• DADH PWB
• HDD
• Cleaning Unit PWB
• LCSS PWB
• HVF PWB
• BM PWB (Booklet Maker)
• Tri-folder PWB
• Inserter PWB
• OCT PWB
IME Controller PWB
• To view the +5V distribution from the power supply unit, refer to WD 1.4.
• For +5V faults on the IME controller PWB, refer to:
– WD 9.6
– WD 9.7
• The marking unit driver PWB PL 92.10 Item 4, is driven from +5V 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, or a new marking unit
driver PWB, PL 92.10 Item 4
Drum Driver PWB
• To view the +5V distribution from the power supply unit, refer to WD 1.5
• For +5V faults on the drum driver PWB, refer to:
– WD 9.1
– WD 9.2
– WD 9.3
• The components that follow are driven from +5V from the drum driver PWB:
– IOD assembly PL 94.15 Item 1
– Front transfix motor encoder, part of the front transfix motor, PL 10.20 Item 11
– Rear transfix motor encoder, part of the rear transfix motor, PL 10.20 Item 11
– Front and rear transfix flexure encoder PL 10.20 Item 5
– Drum position encoder assembly PL 94.20 Item 8
– Registration/Pre-heat interface PWB PL 88.10 Item 10
– Stripper latch sensor, PL 10.10 Item 17
– Pre exit sensor, PL 10.10 Item 6.
– Cleaning unit motor assembly, PL 94.10 Item 19