Xerox WorkCentre 5790 Series Service Manual page 628

Solution:
– Install new parts as necessary.
• Clicking Noise from the HVF / HVF BM.
Possible causes are:
– The noise is caused by the transport motor 2,
ating for approximately 15 seconds. This occurs every time the top tray,
Item 9, or the front door, PL 11.130 Item
Solution:
– Ensure the staple cartridge is fully seated and that the correct cartridge is installed.
NOTE: When a new staple cartridge is installed the stapler makes a repeating noise.
This is normal it is the stapler performing a priming cycle.
– Perform 11-371-171 to 11-377-171
Scanner
Possible causes and potential solutions are:
• Knocking.
Possible causes are:
– If the scan carriage moves to the right and repeatedly knocks against the frame
together with the UI screen remaining blank.
Solution.
– Check the condition of CR15 on the IOT PWB. Refer to the
tics RAP.
Status Indicator RAPs
OF1, OF2
dC330 code 11-001, continually oper-
PL 11.130
3, is opened then closed.
HVF Stapler Position and Priming RAP.
OF7 IOT PWB Diagnos-
OF2 Touch Screen Failure RAP
Use this RAP to solve UI touch screen problems when the machine has power but either the
display is missing, is too dark or the UI screen responds incorrectly or does not refresh.
Initial Actions
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP
death or injury. Moving parts can cause injury.
• Go to the Customer Tools application and adjust the backlight output level.
• Refer to REP 2.1 to access the user interface assembly.
• Check and re-seat all connectors on the UI control PWB,
screen PWB, PL 2.10 Item
• Enter dC305 UI test. Perform the relevant tests to check the operation of the UI.
• If the problem occurs while entering or exiting sleep mode, go to
Procedure
Go to Flag 1. +3.3V is available at
Y N
Check the harness and wiring,
P/J133 on the power distribution PWB. The wiring is good.
Y N
Repair the wiring, REP 1.2
harness, PL 2.10 Item
Refer to:
• 01D +3.3V Distribution RAP.
• 01B 0V Distribution RAP.
Go to Flag 2. +12V is available at
Y N
Check the harness and wiring,
P/J133 on the power distribution PWB. The wiring is good.
Y N
Repair the wiring, REP 1.2
harness, PL 2.10 Item
Refer to:
• 01F+12V Distribution RAP.
• 01B 0V Distribution RAP.
Go to Flag 3. Check the harness and wiring,
the information that follows:
• P/J104, Single Board Controller PWB.
• P/J130, User Interface PWB.
The wiring is good.
Y N
Repair the wiring, REP 1.2
ness, PL 2.10 Item 3.
Go to Flag 4. Check the harness and wiring,
the information that follows:
May 2013
2-596
WARNING
14. Disconnect the power cord. Electricity can cause
PL 2.10 Item 11
6.
01K
P/J130 between pin 1 and 2.
GP 7. Check between P/J130 on the UI control PWB and
or install a new single board controller PWB module/UI
3.
P/J130 between pin 3 and 4.
GP 7. Check between P/J130 on the UI control PWB and
or install a new single board controller PWB module/UI
3.
GP 7. Check between PJ104 and PJ130. Refer to
or install a new single board controller PWB module/UI har-
GP 7. Check between PJ103 and PJ81. Refer to
Xerox® WorkCentre® 5790 Family
and UI touch
Sleep Mode RAP.