Xerox WorkCentre 5790 Series Service Manual page 70

01E +5V Distribution RAP
Use this RAP to identify +5V distribution problems.
NOTE: Short circuit or overload of +3.3V or +5V supply will result in all outputs off, except
+3.3VSB (standby).
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.
Refer to Figure 1 and Figure 2. Go to the appropriate component in the list that follows that has
a suspect +5V supply. Check the wiring,
• Paper path module components (35-55 ppm); developer temperature sensor,
Item 5, relative humidity sensor and ambient temperature sensor,
toner full sensor, PL 9.10 Item 2, left door interlock,
switch, PL 9.10 Item 6, registration sensor,
Paper path module components (65-90 ppm); developer temperature sensor,
Item 5, relative humidity sensor and ambient temperature sensor,
toner full sensor, PL 9.10 Item 2, left door interlock,
switch, PL 9.10 Item 6, registration sensor,
– Flag 2, P/J7.
– Flag 1, P/J27.
• Xerographic CRUM, part of the xerographic
ppm) PL 9.20 Item 2.
– Flag 4, P/J142, P/J144.
– Flag 3, P/J149, P/J8.
– Flag 1, P/J27.
• Fuser CRUM, part of the fuser module,
– Flag 5, P/J146, PJ141.
– Flag 3, P/J149, P/J8.
– Flag 1, P/J27.
• Tray 1 and 2 control PWB, PL 7.10 Item
– Flag 6, P/J19, P/J270.
• HCF control PWB (W/O TAG 151),
– Flag 7, P/J394, P/J272.
– Flag 20, P/J394.
– Flag 6, P/J19, P/J270.
• HCF control PWB (W/TAG 151), PL 7.21 Item
– Flag 7, P/J272.
– Flag 21, P/J7.
– Flag 6, P/J19, P/J270.
• OCT Module, PL 12.10.
– Flag 8, P/J11.
– Flag 1, P/J27.
Status Indicator RAPs
01E
WARNING
GP 7.
PL 9.20 Item
PL 7.30 Item 3, waste toner door
PL 8.15 Item 3.
PL 9.20 Item
PL 7.30 Item 3, waste toner door
PL 8.17 Item 3.
module, (35 ppm) PL 9.22 Item 2
PL 10.10 Item 1.
2.
PL 7.20 Item 2.
2.
• Inverter motor driver PWB,
– Flag 9, P/J4.
– Flag 1, P/J27.
• Duplex motor driver PWB, (35-55 ppm)
– Flag 11, P/J4.
– Flag 1, P/J27.
• Single board controller PWB,
– Flag 17, P/J137, P/J106.
– Flag 16, P/J25, P/J131.
• Riser PWB, PL 3.22 Item
– Flag 16, P/J131, P/J25.
– Flag 18, P/J138, P/J155.
PL 9.22 • Embedded FAX PWB,
4, waste
– Flag 18, P/J138, P/J155, P/J157.
• Power distribution PWB,
– Flag 16, P/J131, P/J25.
PL 9.20
• IOT PWB, PL 1.10 Item
4, waste
– Flag 1, P/J27.
• Tray 5 control PWB,
– Flag 15, P/J502
• Hard disk drive, PL 3.22 Item
or (40-90 – Flag 19, P/J139, P/J999.
– Flag 16, P/J25, P/J131.
• DADH PWB, PL 5.10 Item
The +5V supply on the DADH PWB is generated on board from the +3.3V supply, refer to
Figure 2.
• Wait sensor, (65-90 ppm),
– Flag 10, P/J16, P/J553.
May 2013
2-38
PL 10.11 Item 22.
PL 8.22 Item 9 or (65-90 ppm)
PL 3.24 Item 3.
3.
PL 20.10 Item 4.
PL 3.24 Item 5.
2.
PL 7.68 Item 8.
2.
5.
PL 7.30 Item 25.
Xerox® WorkCentre® 5790 Family
PL 8.20 Item 9.