Xerox 6250DT - Phaser Color Laser Printer Service Manual page 110

Troubleshooting Procedure Table (Continued)
Is the voltage between P/J18-3 <=> P/
5
J18-2, located under the electric housing
assembly (see page 8-71) on the Engine
Control Board is 0 VDC.
If possible, print a sheet of paper from
6
Tray 1.
Does the Main Drive Motor function
properly?
Use service diagnostics to test the Main
7
Drive Motor.
Does the Main Drive Motor turn?
Verify the voltage between P/J50-1 <=>
8
P/J60-2 on the Motor Driver Board is
+24 VDC
Use service diagnostics to test the
9
Interlock Switch.
Does the Interlock switch function
correctly?
Verify the voltage between SW-1 <=>
10
P/J60-2 and SW-2 <=> P/J60-2 on the
Motor Driver Board is +24 VDC.
Close the Interlock Switch.
Check the power supply by verifing the
11
voltage between P/J60-1 <=> P/J60-2 on
the Motor Driver Board is +24 VDC.
Check the power supply by verifing the
12
voltage between P/J61-8 <=> P/J61-7 on
the Motor Driver Board is +5 VDC.
Check the power supply by verifing the
13
voltage between P/J61-6 <=> P/J61-5 on
the Motor Driver Board is +3.3 VDC.
Check the LVNC3 Harness for continuity.
14
See "Main Wiring Diagram" on
page 10-15.
Check the DRV 1 Harness for continuity.
15
See "Drive Section" on page 10-18.
Error Messages and Codes
Replace
Registration
Sensor,
page 8-73.
Go to Step 16.
Replace the
Engine control
Board,
page 8-107.
Go to Step 12.
Go to Step 10.
Replace the ,
Motor Driver
Board,
page 8-101.
Replace the Motor
Driver Board,
page 8-101.
Go to Step 13.
Go to Step 15.
See "DC Power
Supply
Troubleshooting"
on page 4-12.
Replace in the
following order:
Main Drive
Assembly,
page 8-94
Engine Control
Board,
page 8-107.
Go to Step 6.
Go to Step 7.
Go to Step 8.
Go to Step 9.
Replace the ,
Motor Driver
Board,
page 8-101.
Go to Step 11.
See "DC Power
Supply
Troubleshooting"
on page 4-12.
Go to Step 14.
Go to Step 14.
Replace the
Harness LVNC3
PL 13.1.1.
Replace the
DRV 1 Harness
Assembly,
PL 13.1.1
3-29