Xerox 3050 Service Manual page 149

A7 P l APPROXIMATE VOLTAGES: CAUTION
(A7 P I DISCONNECTED
F
ROM A7 DRIVE
a
TO PREVENT DAMAGE TO THE
MOTOR PWB).
COMPONENTS, PRESS THE POWEROFF (0)
SWITCH BEFORE DISCONNECTING THE
STANDBY 107031 I0704j PLUGS.
10703) ENERGIZES THE ROLL DRIVE
@
MOTOR AND THE MOTOR ROTATES IN
I
(
t 0 . 1 VDC
I I I
THE COUNTERCLOCKWISE DIRECTION.
PI-7
+
5
VDC (OR)
+
4.5
VDC
+
4.5
VDC
107041 ENERGIZES THE ROLL DRIVE
+
0.1 VDC
MOTOR AND
THE
MOTOR ROTATES IN
THE CLOCKWISE DIRECTION.
A7
DRIVE MOTOR
PWB
PL 7.2
DRIVER
ROLL3 /
FEED
DRIVE
SPROCKET
ROLL DRIVE
@
A7 P2 APPROXIMATE RESISTANCE:
(A7 P2 DISCONNECTED FROM A7
DRIVE MOTOR PWB)
PIN 1 TO PIN 2 = 3.5 OHMS
PIN 3 TO PIN
4 =
3.5 OHMS
7.3 Roll 3 Feed RAP