Xerox Phaser 6600 Service Manual page 312

Error Troubleshooting
550 Option Feed Clutch Assembly (PL10.1.8)
Step Check
Possible causative parts:
• 550 Option Feed Clutch Assembly (PL10.1.8)
• C2 Turn Harness Assembly (PL10.1.15)
• Drawer 1 Feeder Harness Assembly (PL10.1.13)
• Main Harness Assembly (PL18.2.3)
• 550 Option Feeder Board (PL10.1.10)
• MCU Board (PL18.1.13)
1 Check the 550 Option Feed Clutch Assembly operation
Execute Digital Output diagnostic test 071-022, and check
the 550 Option Feed Clutch Assembly operation.
Does the 550 Option Feed Clutch Assembly function
normally?
2 Check the 550 Option Feed Clutch Assembly connection
Check the connection between the 550 Option Feed Clutch
Assembly and the 550 Option Feeder Board.
Are P/J4201 and P/J420 connected securely?
3 Check the continuity between the 550 Option Feed Clutch
Assembly and the 550 Option Feeder Board
Is each cable of P/J4201<=>P/J420 continuous?
4 Check the 550 Option Feed Clutch Assembly resistance value
Turn off the power, take off the 550 Option Feed Clutch
Assembly, and check the wire wound resistance between
both terminals.
Is the wire wound resistance value 240 ohm (20 degrees C)?
5 Check the power to the 550 Option Feed Clutch Assembly
(+24 VDC)
Close the interlock switch(es), and check if the voltage
between the PWBA FEED ground and the P/J421-1 pin is
about +24 VDC.
6 Check the power to the 550 Option Feeder Board (+24 VDC)
Close the interlock switch(es), and check if the voltage
between the 550 Option Feeder Board ground and the
P/J419-6 pin, and the voltage between the 550 Option
Feeder Board ground and the P/J419-7 pin is about +24 VDC.
7 Check the power from the MCU Board (+24 VDC)
Close the interlock switch(es), and check if the voltage
between the MCU Board ground and the P/J271-4 pin, and
the voltage between the MCU Board ground and the P/J27-5
pin is about +24 VDC.
2-216 Phaser 6600 and WorkCentre 6605
Service Manual
Yes No
Replace the MCU Go to step 2.
Board.
Go to step 3. Connect P/J4201
and P/J420
Go to step 4. Replace the C2
Turn Harness
Go to step 5. Replace the 550
Option Feed
Clutch Assembly.
Replace the 550 Go to step 6.
Option Feed
Clutch Assembly.
Replace the 550 Go to step 7.
Option Feeder
Board.
Go to step 8.
"+24 VDC Power
page 2-222.
Xerox Internal Use Only
securely.
Assembly.
Refer to
FIP" on