Phaser 6128MFP Service Manual 3-85
Error Messages and Codes
14 Check connectors P/J23 and P/J232
between the MCU Board and
Registration Sensor.
Are the connectors secure?
Go to step 15. Reconnect the
connectors.
15 Check Left Side Harness continuity.
Disconnect P/J23 from the MCU
Board and P/J232 from the
Registration Sensor.
Is the harness damaged?
Repair or
replace the
harness
(PL10.4.18).
Go to step 16.
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?
Go to step 17. Replace the
MCU Board
(page 8-57).
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?
Replace the
MCU Board
(page 8-57).
Replace the
Registration
Sensor
(page 8-29).
18 Check connectors P/J26 and P/J262
between the MCU Board and
Registration Clutch.
Are the connectors secure?
Go to step 19. Reconnect the
connectors.
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?
Repair or
replace the
harness
(PL10.8.9).
Go to step 20.
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?
Go to step 21. Replace the
MCU Board
(page 8-57).
21 Check Registration Clutch resistance.
Disconnect P/J262 from the Feed
Solenoid
Is the resistance across J262-1 and
J262-2 about 280 Ohms?
Replace the
MCU Board
(page 8-57).
Replace the
Registration
Clutch
(page 8-35).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No
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