Xerox ColorQube 9303 Series - Page 46

February 2013
2-22
ColorQube® 9303 Family
01C
Status Indicator RAPs
01C +3.3V Distribution RAP
Use this RAP to diagnose +3.3V supply and distribution faults. This supply is not to be con-
fused with the +3.3 ESTAR supply, which is generated in the power supply unit. Go to 01B to
diagnose +3.3V ESTAR 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.
The green LED is lit on the power supply, Figure 1.
YN
Go to 01B +3.3V ESTAR Distribution RAP.
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.
To view the +3.3V supply generation, refer to WD 1.6.
Power Distribution PWB
• For +3.3V faults on the power distribution PWB, refer to WD 1.6.
• If necessary repair the wiring, REP 1.1.
• If necessary, install a new power distribution PWB, PL 3.11 Item 1.
• If necessary, install a new power supply unit, PL 1.15 Item 2
Single Board Controller PWB
• To view the +3.3V distribution from the power distribution PWB, refer to WD 1.6.
• For +3.3V faults on the single board controller PWB, refer to:
– WD 3.1
– WD 3.2
• If necessary repair the wiring, REP 1.1.
• If necessary, install a new single board controller PWB, PL 3.11 Item 13.
Scanner PWB
• To view the +3.3V distribution from the power distribution PWB, refer to WD 1.7.
• For +3.3 faults on the scanner PWB, refer to:
– WD 6.1
– WD 6.2
– WD 6.3
• If necessary repair the wiring, REP 1.1.
• If necessary, install a new scanner PWB, PL 62.16 Item 8.
Full Width Array
• To view the +3.3V distribution from the scanner PWB, refer to WD 6.3.
• For +3.3 faults on the full width array, refer to WD 6.3.
• If necessary, install a new scan carriage assembly, PL 62.15 Item 1.
DADH PWB
• To view the +3.3V distribution from the DADH PWB, refer to WD 5.1.
• For +3.3 faults on the DADH PWB, refer to:
– WD 5.1.
– WD 5.2.
• If necessary repair the wiring, REP 1.1.
• If necessary, install a new DADH PWB, PL 5.10 Item 5.
UI PWB
• To view the +3.3V distribution from the single board controller PWB, refer to WD 3.2.
• For +3.3 faults on the UI PWB, refer to WD 3.2.
• If necessary repair the wiring, REP 1.1.
• If necessary, install a new user interface control PWB, PL 2.10 Item 2 or user interface
status PWB, PL 2.10 Item 4.
Registration / Pre-heat Interface PWB
• +3.3V is generated within this PWB from the +5V supply. Refer to WD 8.6.
• If necessary, install a new registration/pre-heat interface PWB, PL 88.10 Item 10.
IOD Pre-amplifier PWB
• +3.3V is generated within this PWB from the +5V supply. Refer to WD 9.22.
• If necessary, install a new IOD pre-amplifier PWB, PL 94.15 Item 4.
Figure 1 Component location
Green LED
Power supply unit