Xerox Phaser 6128MFP Service Manual page 205

Phaser 6128MFP Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
14 Check connectors P/J23 and P/J232
between the MCU Board and
Registration Sensor.
Are the connectors secure?
15 Check Left Side Harness continuity.
Disconnect P/J23 from the MCU
Board and P/J232 from the
Registration Sensor.
Is the harness damaged?
16 Check for +3.3 V at J23 of the MCU
Board.
Is there +3.3 V across ground <=>
J23-3 pin on the MCU Board?
17 Check Registration Sensor signal.
Does the voltage between ground
<=>J23-5 on the MCU Board change
when the Registration Actuator In is
used to block the sensor?
18 Check connectors P/J26 and P/J262
between the MCU Board and
Registration Clutch.
Are the connectors secure?
19 Check KSNR Registration Clutch
harness continuity.
Disconnect P/J26 from the MCU
Board and P/J262 from the
Registration Clutch.
Is the harness damaged?
20 Check for +24 V at J26 of the MCU
Board.
Is there +24 V between ground <=>
J26-4 on the MCU Board when the
Interlock Switch is closed?
21 Check Registration Clutch resistance.
Disconnect P/J262 from the Feed
Solenoid
Is the resistance across J262-1 and
J262-2 about 280 Ohms?
Error Messages and Codes
Yes No
Go to step 15. Reconnect the
connectors.
Repair or Go to step 16.
replace the
harness
(PL10.4.18).
Go to step 17. Replace the
MCU Board
(page 8-57).
Replace the Replace the
MCU Board Registration
(page 8-57). Sensor
(page 8-29).
Go to step 19. Reconnect the
connectors.
Repair or Go to step 20.
replace the
harness
(PL10.8.9).
Go to step 21. Replace the
MCU Board
(page 8-57).
Replace the Replace the
MCU Board Registration
(page 8-57). Clutch
(page 8-35).
3-85