Xerox 8830 Service Manual page 331

K I L
7.3 MEDIA FEED, ROLL 2 (2 OF 2)
MACHINE RUN CONTROL DIAGNOSTIC CODES
[ 0708] ROLL 2 SENSOR (INPUT)
[0711] ROLL 2 MOTION SENSOR (INPUT)
[0717] ENERGIZES THE MEDIA DRIVE MOTOR (MOT1) AND THE ROLL 2 CONTROL
(OUTPUT) CONTROLS FEED AND REWIND CLUTCHES.
(0728) ROLL 2 REWIND CLUTCH (OUTPUT)
[0731 ] ROLL 2 FORWARD CLUTCH (OUTPUT)
MEASURE THE ROLL 2 MOVING SIGNAL AS FOLLOWS:
MOVING - +2.4 VDC.
STOPPED = 0 VDC OR +5 VDC
INPUT POWER BLOCK
VOLTAGE TEST POINT
+26 VDC (BULK) LVPS (A6) J3-18
DC COM LVPS (A5) J3-17
+5 VDC LVPS (A5) J3-14
DC COM LVPS (A5) J3-11
8830
I M I N
NOTE: THE ROLL 2 POSITION
SENSOR (Q2) IS ACCESSIBLE
FROM THE RIGHT SIDE OF THE
MACHINE (BETWEEN THE DRIVER
PWB AND THE MAIN PWB).
GF
1.2
1.2
1.2
1.2
ROLL 2
REWIND
DRIVE
SPROCKET
ROLL 2
POSITION
SENSOR (Q2)
REWIND REWIND DRIVE
GEARS
CLUTCH (CL6)
PL 7.2 PL 7.2
1/98
7-47
ROLL 2
FEED DRIVE
ROLLS
PL 7.1
Chain 7 Paper Supplying