Xerox 6200B - Phaser Color Laser Printer Service Manual page 56

Troubleshooting Procedure Table (cont'd.)
Steps Actions and Questions
7 Use service diagnostics to test the Main
Drive Motor.
Does the Main Drive Motor turn?
8 Verify the voltage between P/J48-1 <=>
P/J60-2 on the Motor Driver Board is
+24 VDC
9 Use service diagnostics to test the
Interlock Switch.
Does the Interlock switch function
correctly?
10 Verify the voltage between SW-1 <=>
P/J60-2 and SW-2 <=> P/J60-2 on the
Motor Driver Board is +24 VDC.
Close the Interlock Switch.
11 Check the power supply by verifing the
voltage between P/J60-1 <=> P/J60-2 on
the Motor Driver Board is +24 VDC.
12 Check the power supply by verifing the
voltage between P/J61-8 <=> P/J61-7 on
the Motor Driver Board is +5 VDC.
13 Check the power supply by verifing the
voltage between P/J61-6 <=> P/J61-5 on
the Motor Driver Board is +3.3 VDC.
14 Check the LVNC Harness for continuity.
See "Main Wiring Diagram" on page 352
15 Check the DRV 1 Harness for continuity.
See "Drive Section" on page 355
16 Perform steps 1 through 3 in RRP 3.1.
Open and close the front door.
Observe the Turn Roller.
Dose the Turn Roller turn while the
machine is warming up?
17 Using service diagnostics, test the MPT
Turn Clutch.
Does the Turn Clutch Assembly function
normally?
In the test, actuate the Interlock switch.
38 Phaser 6200 Color Laser Printer - Service Manual
Yes
Replace the
Engine control
Board, RRP 12.7
Go to step [12].
Go to step [10].
Replace the ,
Motor Driver
Board,
RRP 12.3
Replace the Motor
Driver Board,
RRP 12.3
Go to step [13].
Go to step [15].
See "DC Power
Supply
Troubleshooting"
on page 88.
Replace in the
following order:
Main Drive
Assembly, RRP
11.3
Engine Control
Board, RRP 12.7
Go to step [19].
Check the Clutch
for slip or the gear
for damage.
Replace if
necessary.
No
Go to step [8].
Go to step [9].
Replace the ,
Motor Driver
Board,
RRP 12.3.
Go to step [11].
See "DC Power
Supply
Troubleshooting
" on page 88.
Go to step [14].
Go to step [14].
Replace the
Harness LVNC
PL 13.1.1.
Replace the
DRV 1 Harness
Assembly,
PL 13.1.1.
Go to step [17].
Go to step [18].