Xerox WC5545F, Service Manual

Page: 929 / 2320

August 2007
2-737
WorkCentre 5687 Family
OF2
Status Indicator RAPs
OF2 UI Touch Screen Failure RAP
To solve UI touch screen problems when the machine has power but either the display is miss-
ing, is too dark or the UI screen responds incorrectly or does not refresh.
Initial Actions
• Go to the Customer Tools application and adjust the backlight output level.
• Refer to REP 2.1 to access the user interface assembly.
• Figure 1. Check and re-seat P/J3, P/J6, P/J81 and P/J130 on the user interface PWB.
• 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 01K Sleep Mode RAP.
Procedure
Go to Flag 1. +3.3V is available at P/J130 between pin 1 and 2.
Y
N
Check the harness and wiring, GP 7. Check between P/J130 on the UI PWB and P/J133
on the power distribution PWB. The wiring is good.
Y
N
Repair the wiring. REP 1.2.
Refer to:
• 01D +3.3V Distribution RAP.
• 01B 0V Distribution RAP.
Go to Flag 2. +12V is available at P/J130 between pin 3 and 4.
Y
N
Check the harness and wiring, GP 7. Check between P/J130 on the UI PWB and P/J133
on the power distribution PWB. The wiring is good.
Y
N
Repair the wiring. REP 1.2.
Refer to:
• 01F+12V Distribution RAP.
• 01B 0V Distribution RAP.
Go to Flag 3. Check the harness and wiring, GP 7. Check between PJ104 and PJ130. Refer to
the information that follows:
•
(32-55 ppm) P/J104 or (65-87 ppm) P/J104, Image Processing PWB.
• P/J130, User Interface PWB.
The wiring is good.
Y
N
Repair the wiring, REP 1.2.
Go to Flag 4. Check the harness and wiring, GP 7. Check between PJ103 and PJ81. Refer to
the information that follows:
•
(32-55 ppm) P/J103 or (65-87 ppm) P/J103, Image Processing PWB.
• P/J81, User Interface PWB.
CAUTION
Before installing a new User Interface Assembly, determine the current software level (GP 4).
The software on the new User Interface Assembly may not be compatible. Upgrade or down-
grade the software set to suit the customer machine requirements using the Customer Admin-
istration Tool (CAT).
Install new components as necessary:
• User interface PWB, (32-55 ppm) PL 2.15 Item 7 or (65-87 ppm) PL 2.10 Item 6.
• User interface touch screen, (32-55 ppm) PL 2.15 Item 6 or (65-87 ppm) PL 2.10 Item 5.
If the problem continues, install a new image processor PWB, (32-55 ppm) PL 3.20 Item 3, (65-
87 ppm) PL 3.10 Item 3.
Figure 1 Component location
P/J3
P/J6
P/J130
UI touch screen
User interface
PWB
P/J81
USB port