B-171 Hvf Bm To Machine Communications Interface And Bm Present Rap - Xerox WorkCentre 5687 Series Service Manual

11B-171 HVF BM to Machine Communications Interface
and BM Present RAP
A communication fault exists between the HVF BM and the machine.
Procedure
WARNING
Switch off the electricity to the machine, GP 14. Disconnect the power cord from the
customer supply while performing tasks that do not need electricity. Electricity can
cause death or injury. Moving parts can cause injury.
Figure 1 shows the communications between the booklet maker and the HVF control PWB. For
communications between the HVF control PWB and the machine, go to the 03-360, 03-408 to
03-410, 03-418 IOT to Output Device Error RAP.
The pulses on the connections at Flag 1 cannot be measured, but may be detected using a
meter that can record maximum and minimum voltage levels, or by using an AC voltage range.
Check the wiring and repair as necessary, REP 1.2. Refer to:
• P/J133, HVF control PWB.
• P/J562, Booklet maker PWB.
If necessary, install new components:
• Booklet maker PWB, PL 11.166 Item 10.
• HVF control PWB, PL 11.157 Item 2.
If the machine indicates that the booklet maker is not present, check that P/J133, pin 6 is held
at zero. If necessary, repair the wiring, REP 1.2 or install a new HVF control PWB, PL 11.157.
WorkCentre 5687 Family
August 2007
2-647
Figure 1 Circuit diagram
Status Indicator RAPs
11B-171