Xerox 3050 Service Manual page 163

CONTROL PWB (43)
/
Go to
FLAG 2
and check the wiring
between the Front Document Sensor and
the Control PWB for an open circuit or a
short circuit to ground.
If there i s no open or short circuit,
replace the Front Document Sensor
(Q22).
If the problem persists, replace the
Control
PWB
(A3).
Enter the code [0503) In order to check the
Rear Document Sensor.
Manually activate the Rear Document
Sensor.
The display changes from
(00) to (01)
when
the sensor is
actuated.
Go to FLAG 3 and check the wiring
between the Rear Document Sensor and
the Control PWB for an open circuit or a
short circuit to ground.
If there
is
no open or short circuit,
replace the Rear Document Sensor (426).
If the problem persists, replace the
Control PWB (A3).
Go to the
5.1
Document Handler RAP.
I
101 92
3050 2-205
OF 2 Document Does Not Scan RAP