Xerox Phaser 6300 Service Manual page 122

Troubleshooting Procedure Table (Continued)
Step Actions and Questions
4
Check all pins on the REGISNS Harness
PL4.1.4 for continuity.
1. Disconnect P/J181 and P/J18.
2. Check continuity between J181 <=> J18
5 Check the Registration Sensor signal.
Block the Registration Sensor.
Is the voltage across P/J18-3 <=> P/J18-2
0 V?
6
If possible, print a Test Print from
Tray 1 (MPT).
Does the Main Motor function properly?
7
Test the Main Drive Assembly.
Run the Service Diagnostics Main Motor
test.
Does the Main Motor turn?
8
Check for +24 V to the Main Drive Motor
1. Disconnect P/J481.
2. Close the Interlock Switch while testing.
Is there +24 V across J481-10 <=> J481-8?
9 Test the Interlock Switch.
Run the Service Diagnostics Interlock
Switch test.
Does the Interlock Switch function
correctly?
10 Check for +5 V to the Interlock Switch
Disconnect P/J161.
Is there +5 V across P161-1 <=> P161-2?
11 Check all pins on the FAN/PHD/MOT
Harness PL10.1.9 for continuity.
1. Disconnect P/J48 and P/J481.
2. Check continuity between J48 <=> J481.
12
Check Turn Roller function.
1. Perform Steps 1 through 3 on
(page 8-21).
2. Open and close the front door.
3. Observe the Turn Roller.
Does the Turn Roller turn while the
machine is warming up?
13
Test the Turn Clutch.
1. Close the Interlock Switch while testing.
2. Run the Service Diagnostics
Tray 1 (MPT) Turn Clutch test.
Does the Turn Clutch function normally?
Error Messages and Codes
Yes
Go to Step 5.
Replace
Registration Sensor
(page 8-36).
Go to Step 16.
Replace the Engine
Control Board
(page 8-104).
Go to Step 12.
Go to Step 11.
Replace the LVPS.
Replace Main Drive
Motor
Go to Step 16.
Check that the
Clutch doesn't slip.
Check the gears for
damage.
No
Replace the
Registration
Sensor Harness.
Go to Step 6.
Go to Step 7.
Go to Step 8.
Go to Step 9.
Replace the parts
concerned.
Replace the
Interlock Switch
(page 8-101).
Replace FAN/
PHD/MOT
Harness.
Go to Step 13
Go to Step 14.
3-21