Motor Driver Board Clock Frequency Error - Xerox Phaser 7400 Service Manual

Motor Driver Board Clock Frequency Error

The Sub-CPU clock frequency on the Motor Driver Board is inaccurate.
Applicable Status Code:
Code 930:
The Sub-CPU clock frequency is inaccurate.
Initial Actions:
Cycle the printer's power.
If the problem persists follow the procedure below.
Troubleshooting Reference Table
Applicable Parts
Motor Driver Board, PL2.1.10
Engine Control Board, PL1.1.4
Troubleshooting Procedure Table
Step Actions and Questions
1 Check the Motor Driver Board connection.
Is DRV0 harness damaged or
disconnected or?
2 Check all pins of the DRV0 harness for
continuity.
Disconnect the DRV1 ribbon cable.
Is the cable conductive?
3-170
Wiring and Plug/Jack References
Print Engine Map 3 (page 10-6)
Print Engine Map 5 (page 10-8)
Print Engine Motor Driver Board (5/6) (page 10-35)
Yes
Replace the
harness.
Replace the Motor
Driver Board
(page 8-141). If the
error persists,
replace the Engine
Control Board
(page 8-112).
Phaser 7400 Color Printer Service Manual
No
Go to Step 2.
Replace the DRV1
Harness.