5-275 Dadf Ram Check Fail Rap - Xerox DocuColor 12/DCCS50 Service Manual

A B C D
Replace the DADF Size Sensor 2 (Front)
Go to Flag 4 on BSD 5.3 and check the wire for an open circuit.
Replace the DADF Control PWB (PL
Replace the DADF Control PWB (PL 12.3).
Status Indicator RAPs
5-274 Original Size Sensor Fail RAP, 5-275 DADF
(PL 12.5).
12.3).

5-275 DADF RAM Check Fail RAP

The Control Logic has detected a DADF Size Sensor 1 or DADF Size Sensor 2 failure or a
DADF Ram Test failure after switching the power on or placing the originals in the Entrance
Tray.
Initial Actions
Check for the following:
• Ensure that the Document Handler is free of any paper or debris.
• Ensure that connectors P/J599,
Control PWB and DADF Size Sensors 1 and 2, and there are no obvious crimped or bro-
ken wires.
• Refer to BSD 5.3 for the following procedure.
Procedure
Enter dC330 005-150 #1 Size Sensor. Press Start. Block DADF Size Sensor 1. The display
changed from H to L.
Y N
With the sensor blocked, less than +1 VDC is measured at P/J599-8 on the DADF
Control PWB.
Y N
With the sensor blocked, less than +1 VDC is measured at P/J582-2 on DADF
Size Sensor 1.
Y N
There is +5 VDC between P/J582-1 and P/J582-3 on the DADF Size Sen-
sor 1.
Y N
Go to Flag 6
wires are good, replace the DADF Control PWB
Replace the DADF Size Sensor 1 (Rear)
Go to Flag 3 on BSD 5.3 and check the wire for an open circuit.
Replace the DADF Control PWB
Enter dC330 005-151 #2 Size Sensor. Press Start. Block DADF Size Sensor 2. The display
changed from H to L.
Y N
With the sensor blocked, less than +1 VDC is measured at P/J599-11 on the DADF
Control PWB.
Y N
With the sensor blocked, less than +1 VDC is measured at P/J583-2 on the
DADF Size Sensor 2.
Y N
There is +5 VDC between P/J583-1 and P/J583-3 on the DADF Size Sen-
sor 2.
Y N
Go to Flag 7
wires are good, replace the DADF Control PWB
A B C D
1/05
2-48
manuals4you.com manuals4you.com
P/J582 and P/J583 are seated correctly on the DADF
on BSD 5.3 and check the wires for an open circuit. If the
(PL 12.3).
(PL 12.5).
(PL 12.3).
on BSD 5.3 and check the wires for an open circuit. If the
(PL 12.3).
DocuColor 12/DCCS50
Reissue