Xerox ColorQube 9303 Series Service Manual page 47

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
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
The yellow LED on top of the power supply
available in the power supply unit. The green LED is lit but the yellow led is extinguished.
Y N
Go to the 01C 3.3V Distribution RAP.
Switch off, then switch on the machine, GP
are hard PEST faults shown.
Y N
Check that the +5V is within tolerance, +5V +/- 2% at JDC1 pin 17. Refer to
+5V is good.
Y N
Install a new power supply unit,
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
RAP, +5V short circuit check. The circuit is good.
Y N
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
• PJDC4 to isolate the power distribution PWB
Repair the short circuit. Refer to
Determine which PWB has the distribution fault, go to
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,
PL 1.15 Item 2 as necessary. Refer to GP 15
PWB's.
ColorQube® 9303 Family
WARNING
WD 1.3.
unit, Figure 1, indicates that the +5V supply is
14. Check the PEST fault history, dC123. There
PL 1.15 Item 2.
CAUTION
+24V, +/-12V, +5V Short Circuit and Overload
and media path driver PWB.
and HDD.
REP 1.1. Install new parts as necessary.
PWB Checks.
REP 1.1 or install a new PWB or power supply unit,
for the location and function of the LED's on the
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
WD 1.4. The
• OCT PWB
IME Controller PWB
• To view the +5V distribution from the
• For +5V faults on the
– WD 9.6
– WD 9.7
• The marking unit driver PWB
PWB
• Repair the wiring as necessary,
• If necessary, install a new IME controller PWB,
driver PWB, PL 92.10 Item 4
Drum Driver PWB
• To view the +5V distribution from the
• For +5V faults on the
– WD 9.1
– WD 9.2
– WD 9.3
• The components that follow are driven from +5V from the
– IOD assembly
– Front transfix motor encoder, part of the front transfix motor,
– Rear transfix motor encoder, part of the rear transfix motor,
– Front and rear transfix flexure encoder
– Drum position encoder assembly
– Registration/Pre-heat interface PWB
– Stripper latch sensor,
– Pre exit sensor,
– Cleaning unit motor assembly,
February 2013
2-23
power supply unit, refer to
IME controller PWB, refer to:
PL 92.10 Item 4, is driven from +5V from the
REP 1.1
PL 92.10 Item
power supply unit, refer to
drum driver PWB, refer to:
drum driver
PL 94.15 Item 1
PL 10.20 Item 5
PL 94.20 Item 8
PL 88.10 Item 10
PL 10.10 Item 17
PL 10.10 Item 6.
PL 94.10 Item 19
WD 1.4.
IME controller
1, or a new marking unit
WD 1.5
PWB:
PL 10.20 Item 11
PL 10.20 Item 11
Status Indicator RAPs
01D