GBC FusionPunch II Service Manual page 96

8. With the output active, check Optical
Relay Opto2 on the Punch I/O PWB.
The light on the relay is lit when the output
is active.
Y N
Replace Optical Relay Opto2 on
the Punch I/O PWB (PL 3.1).
Go to Step 9.
9. Check the fuse on the Optical Relay.
The fuse is OK
Y N
Replace the fuse.
Go to Step 10.
10. With the output active, check for +24VDC
supplied to the Back Gauge Solenoid by
placing the meter leads across P/J 4B-
24VI and P/J 4B-OUTB7.
There is +24VDC across these points.
Y N
Replace the Punch I/O PWB
(PL3.1).
Check continuity and shorts to ground in
the harness between the P/J 4B on the
Punch I/O PWB and the Back Gauge
Solenoid.
The harness is open or shorted to ground.
Y N
Replace the Back Gauge Solenoid
(PL 4.3C).
Replace the harness (PL 6.1A).
Quality RAP 5.7 Documents Punched in Center of Sheet
LITTLE STAR
CONTROLLER
PWB
PL 3.1
BACK GAUGE
J1
P1
FINGERS
HVO2
BLU
12/2003
3-16
PUNCH I/O PWB
PL 3.1
J4B P4B
P22 J22
24VI
OPTO 2
OUTB7 YEL
RELAY
OUTB7
WHT
GBC FusionPunch II Service Manual
BACK
GAUGE
SOLENOID
PL 4.3C