Xerox Phaser 6280 Service Manual page 152

Error Messages and Codes
3-16
Troubleshooting Procedure Table (continued)
Step Actions and Questions
12 1. Check the wiring harness
connectors P/J422 and P/J4222
between the Tray 3 Feeder Board
and the Tray 3 Feeder Drive.
2. Are the connectors securely
connected?
13 Check the C2 Motor Harness for
continuity.
1. Disconnect P/J422 from the Feeder
Board and P/J4222 Feeder
Assembly.
2. Check continuity between
connectors P/J422 <=> P/J4222.
Check the Tray 3 Feeder Drive signal.
14
1. Disconnect P/J4222 from the
Optional Feeder Board.
2. Is there +24 V across ground <=>
J422-6 pin?
15 1. Check the wiring harness
connectors P/J419, P/J281, and P/
J28 between the Tray 3 Feeder
Board and the MCU Board.
2. Are the connectors securely
connected?
16 Check the Tray 3 Feeder Harness for
continuity.
1. Disconnect P/J419 from the Feeder
Board and P/J281 from the Right
Side Harness.
2. Check continuity between P/J419
<=> P/J281.
17 Check the Right Side Harness for
continuity.
1. Disconnect P/J281 from the Right
Side Harness and P/J28 from the
MCU Board.
2. Check continuity between P/J281
<=> P/J28.
Check the Tray 3 Feeder Board signal.
18
1. Disconnect P/J28 on the MCU
Board.
2. Is there +24 V across ground <=> J/
28-B4/J28-B5 when the Interlock
Switch is activated?
Yes
Go to step 13.
Go to step 14.
Replace the
Optional 550-
Sheet Feeder
(page 8-100).
Go to step 16.
Go to step 17.
Go to step 18.
Replace the
Optional 550-
Sheet Feeder
(page 8-100).
Phaser 6280 Color Laser Printer Service Manual
No
Reconnect the
connectors.
Replace the
Optional Sheet
Feeder
(page 8-100).
Go to step 15.
Reconnect the
connectors.
Replace the
Optional 550-
Sheet Feeder
(page 8-100).
Replace the
Right Side
Harness.
Replace the
MCU Board
(page 8-86).