Xerox Phaser 6500 Service Manual page 252

Error Messages and Codes
3-124
Troubleshooting Procedure (continued)
Step Actions and Questions
19 Disconnect J21 from the MCU Board.
Are the voltages across J21-2/J21-4
<=> ground on the MCU Board, about
+24 VDC when the interlock switch
(Interlock Harness Assy) is pushed?
20 Check the connections between the
MCU Board and Feed Solenoid.
Are P/J23 and P/J231 connected
correctly?
21 Check the Left Side Harness Assy for
continuity.
Disconnect J23 from the MCU Board.
Disconnect P231 from the Feed
Solenoid.
Is each cable of J23 <=> P231
continuous?
22 Check the power to the Feed Solenoid.
Disconnect J23 from the MCU Board.
Is the voltage across P23-1 <=> ground
on the MCU Board, about +24 VDC
when the Interlock Switch (Interlock
Harness Assy) is pushed?
23 Check the Feed Solenoid resistance.
Disconnect P/J231 of the Feed
Solenoid.
Is the resistance across J231-1 and
J231-2 about 96 ohm?
24 Check the connections between the
MCU Board and Registration Sensor.
Are P/J23 and P/J232 connected
correctly?
25 Check the Left Side Harness Assy for
continuity.
Disconnect J23 from the MCU Board.
Disconnect J232 from the Registration
Sensor.
Is each cable of J23 <=> J232
continuous?
26 Disconnect J23 from the MCU Board.
Is the voltage across P23-3 <=> ground
on the MCU Board, about +3.3 VDC?
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Yes
Replace the
Main Drive
Assy.
(page 8-114)
Go to step 21.
Go to step 22.
Go to step 23.
Replace the
MCU Board.
(SFP,
page 8-138;
MFP,
page 8-160)
Go to step 25.
Go to step 26.
Go to step 27.
Phaser 6500/WorkCentre 6505 Service Manual
No
Replace the
MCU Board.
(SFP,
page 8-138;
MFP,
page 8-160)
Reconnect the
connector(s) P/
J23 and/or P/
J231 correctly.
Replace the
Left Side
Harness Assy.
(PL 3.1.18)
Replace the
MCU Board.
(SFP,
page 8-138;
MFP,
page 8-160)
Replace the
Feed Solenoid.
(page 8-176)
Reconnect the
connector(s) P/
J23 and/or P/
J232 correctly.
Replace the
Left Side
Harness Assy.
(PL 3.1.18)
Replace the
MCU Board.
(SFP,
page 8-138;
MFP,
page 8-160)