Xerox WorkCentre 4150 Service Manual page 67

03-500 Use Auxiliary Access RAP
The machine has detected that there is no credit in the foreign device.
Procedure
WARNING
Switch off the electricity to the machine. 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.
NOTE: The main PWB has 4 test points, GND, +3.3V, +5V and +24V. The location of the test
points is shown on the Main PWB PJ location illustration.
Refer to Wiring Diagram 8. Perform the following:
1. If there is credit in the foreign device, check the wiring between the foreign device and the
foreign device interface PWB, PL 1.10 Item 15
2. Check the wiring between CN2 on the foreign device interface PWB and CN28 the Main
PWB. If necessary, install a new foreign device interface harness, PL 1.10 Item 27.
3. If necessary, install a new foreign device interface PWB, PL 1.10 Item 15.
4. If necessary, install a new main PWB, PL 1.10 Item 1.
WorkCentre 4150
03-600 Memory Failure RAP
03-600 The machine has detected a memory access failure.
Procedure
Switch off the electricity to the machine. 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.
Refer to Wiring Diagram 5. Perform the following:
1. Switch off the machine, then switch on the machine.
2. Remove, then reinstall the memory DIMM, PL 1.10 Item 22.
3. Install new components as necessary:
• Memory DIMM, PL 1.10 Item 22.
• Main PWB, PL 1.10 Item 1.
September 2006
2-9
WARNING
Status Indicator RAPs
03-500, 03-600