Xerox ColorQube 9303 Series, Service Manual, Page: 50 / 1812

February 2013
2-26 ColorQube® 9303 Family
01E
Status Indicator RAPs
01E +12V Distribution RAP
Use this RAP to di12V 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.
NOTE: To view the +12V 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 +5V and +12V supplies are generated from the -12V/
+24V supply in the power supply unit . The yellow LED is lit.
Y N
Install a new power supply unit,
PL 1.15 Item 2 .
Check that the +12V is within tolerance, +12V +/- 5% at JDC1 pin 13. The +12V is good.
Y
N
Install a new power supply unit,
PL 1.15 Item 2 .
CAUTION
To avoid equipment damage, do not disconnect or connect PJ’s while the machine is switched
on.
Check for short circuits. Refer to the 01-525-00 +24V, +/-12V, +5V Short Circuit and Overload
RAP, +5V short circuit check. The circuit is good.
Y
N
Switch off the machine,
GP 14 . Disconnect connectors on the power supply to isolate the
PWB’s that follow:
• PJDC1 to isolate the IME controller PWB .
• PJDC3 to isolate drum driver PWB and media path driver PWB .
Repair the short circuit. Refer to REP 1.1 . Install new parts as necessary.
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.
PWB Checks
• IME Controller PWB
• Marking Unit Driver PWB
• Solenoid Patch PWB
• Drum Driver PWB
• Cleaning Unit
• Media Path Driver PWB
• Registration/Pre-heat Interface PWB
• Power Distribution PWB
• Single Board Controller PWB
• Scanner PWB
• Full Width Array
• UI PWB
• Quad Wave Amp PWB
• Printheads 1 to 4
IME Controller PWB
• To view the +12V distribution from the power supply unit , refer to WD 1.4 .
• For +12V faults on the IME controller PWB , refer to:
– WD 9.5
– WD 9.6
– WD 9.7
• The items that follow are driven from +12V from the IME controller PWB :
– Print heads, PL 91.25 Item 2 , PL 91.25 Item 2 .
– Marking unit driver PWB PL 92.10 Item 4 .
• Repair the wiring as necessary, REP 1.1 .
• If necessary, install a new IME controller PWB, PL 92.10 Item 1 , or one of the items in the
list above.
Marking Unit Driver PWB
• To view the +12V distribution from the IME controller PWB , refer to WD 9.7 .
• For +12V faults on the marking unit driver PWB , refer to:
– WD 9.10
– WD 9.12
• The solenoid patch PWB , PL 93.10 Item 9 is driven from +12V from the marking unit
driver PWB
• Repair the wiring as necessary, REP 1.1 .
• If necessary, install a new marking unit driver PWB, PL 92.10 Item 4 .
Solenoid Patch PWB
• To view the +12V distribution from the marking unit driver PWB , refer to WD 9.12 .
• For +12V faults on the solenoid patch PWB , refer to WD 9.14 .
• The components that follow are driven from +12V from the solenoid patch PWB :
– Reservoir pump PL 93.10 Item 11 .
– LPA valve solenoid PL 93.10 Item 15 .
• Repair the wiring as necessary, REP 1.1 .
• If necessary, install a new solenoid patch PWB, PL 93.10 Item 9 , or one of the items in the
list above.
Drum Driver PWB
• To view the +12V distribution from the power supply unit , refer to WD 1.5 .
• For +12V faults on the drum driver PWB , refer to:
– WD 9.2
– WD 9.3
– WD 9.4
• The +12V LED on this PWB is shown in WD 9.2 .
• The components that follow are driven from +12V from the drum driver PWB :