Xerox ColorQube 9303 Series - Page 61

February 2013
2-37
ColorQube® 9303 Family
01L
Status Indicator RAPs
01L 0V Distribution RAP
Use this RAP to diagnose 0V 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.
Important: 0V return lines are connected together and to the chassis, both inside the
power supply units and at the PWB’s.
• To measure the continuity of a 0V line between the power supply unit and a PWB, isolate
the line concerned by disconnecting the PJs at both ends. In this way there will be no mis
-
leading parallel paths. As necessary, repair the wiring, REP 1.1 or install a new harness.
The same applies between the power distribution PWB and other PWB’s.
• To check the connection of a 0V line to chassis via the power supply unit, connect the PJ
at the power supply unit only, disconnect from the PWB, and measure the continuity to the
chassis. As necessary, repair the wiring, REP 1.1 or install a new power supply unit, PL
1.15 Item 2.
• To check the connection of a 0V line to chassis via the PWB, connect the power PJ at the
PWB only, disconnect from the power supply unit, and measure the continuity to the chas
-
sis. If necessary repair the wiring or install a new PWB.
• To check the 0V line between a PWB and a component, (sensor, motor, etc.), disconnect
the PWB PJ, then check the wiring for condition, short circuits, open circuits etc. As nec
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essary, repair the wiring, REP 1.1, install a new harness, component or PWB.
This procedure lists the wiring diagrams that show the occurrence of 0V lines. Select the sus-
pect area from the list below, check the wiring for condition, short circuits and open circuits.
Repair the wiring as necessary, REP 1.1 or install a new harness or faulty component.
• Power Supply Unit
• Power Distribution PWB
• Single Board Controller PWB
• UI Control PWB, Touch Screen and UI Status PWB
• Foreign Device Interface PWB
• DADH PWB
• Scanner PWB
• Tray 5 Control PWB
• 3 Tray Module PWB
• Media Path Driver PWB
• Drum Driver PWB
• IME Controller PWB
• Marking Unit Heater PWB
• Marking Unit Driver PWB
• Quad Wave Amp PWB
• Solenoid Patch PWB
• Ink Load Entry PWB
• Cleaning Unit PWB
• Printheads 1, 2, 3 and 4 PWB’s
• IOD Pre-amplifier PWB
• LCSS PWB
• HVF Control PWB
• BM PWB (Booklet maker)
• Tri-folder PWB
• Inserter PWB
• OCT PWB
Power Supply Unit
•Refer to WD 1.3, WD 1.4 and WD 1.5.
• Repair the wiring as necessary, REP 1.1.
• If necessary install a new power supply unit, PL 1.15 Item 2.
Power Distribution PWB
•Refer to WD 1.6 and WD 1.7.
• Repair the wiring as necessary, REP 1.1.
• If necessary install a new power supply unit, PL 1.15 Item 2.
Single Board Controller PWB
•Refer to WD 3.1, WD 3.2 and WD 3.3.
• Repair the wiring as necessary, REP 1.1.
• If necessary, install a new single board controller PWB, PL 3.11 Item 13 or associated
components.
UI Control PWB, Touch Screen and UI Status PWB
•Refer to WD 3.1. If necessary, install new components from the list that follows:
– UI control PWB, PL 2.10 Item 2.
– Touch screen, PL 2.10 Item 3.
– UI status PWB, PL 2.10 Item 4.
– LCD to PWB harness, PL 2.10 Item 11.
– UI control to UI status harness, PL 2.10 Item 9.
• Repair the wiring as necessary, REP 1.1.
• If necessary, install a new user interface control PWB.
• If necessary, install a new touch screen, PL 2.10 Item 3.
• If necessary, install a new user interface status PWB, PL 2.10 Item 4.
Foreign Device Interface PWB
•Refer to WD 3.3.
• Repair the wiring as necessary, REP 1.1
• If necessary, install a new foreign device interface PWB, PL 3.11 Item 23, or associated
components.
DADH PWB
•Refer to WD 5.1 and WD 5.2
• Repair the wiring as necessary, REP 1.1
• If necessary, install a new DADH PWB, PL 5.10 Item 5, or associated components.
Scanner PWB
•Refer to WD 6.1, WD 6.2 and WD 6.3
• Repair the wiring as necessary, REP 1.1
• If necessary, install a new scanner PWB, PL 62.16 Item 8, or associated components.
Tray 5 Control PWB
•Refer to WD 7.1 and WD 7.2