Xerox Phaser 6280 Service Manual page 170

Error Messages and Codes
3-34
Troubleshooting Procedure Table (continued)
Step Actions and Questions
25 Check the Duplex Unit for continuity.
1. Disconnect P/J27 from the MCU
Board.
2. Is there +3.3 V across ground <=>
J27-15 pin on the MCU Board?
1. Check the wiring harness connector
26
P/J429 between the Duplex Board
and the Duplex Motor.
2. Is P/J429 securely connected?
27 Check the Duplex Motor for continuity.
1. Disconnect P/J429 from the Duplex
Board.
2. Is there +24 V across ground <=>
J429-2 pin on the Duplex Board?
Yes
Replace the
Duplex Unit
(page 8-99).
Go to step 27.
Replace the
Duplex Unit
(page 8-99).
Phaser 6280 Color Laser Printer Service Manual
No
Replace the
MCU Board
(page 8-86).
Reconnect P/J
429 connector.
Perform steps
21 through 25.