Troubleshooting
Table 5-12. The LCD Displays FEED JAM (3)
Cause
The feed solenoid of the
optional feeder unit coil may
be open or shorted.
The turn solenoid coil may
be open or shorted.
Step
1
2
Disconnect connector
on the FEEDER
board and check the
coil resistance between pin
1 and pin 2 on the
disconnected cable side of
the connector, using a
Is the resistance
120 ohms?
If the coil is shorted, check
the solenoid drive circuit
using the procedure below:
1. Set the
for
resistance check mode.
2. Place the (-) terminal of
the
on pin 2
of connector
on
the FEEDER
board.
3. Place the
terminal of
the
on
Does the muttimeter detect
any current?
connector
on the FEEDER
board and check the
coil resistance between pin
1 and pin 2 on the
disconnected cable side of
the connector, using a
Is the resistance
approximately 220 ohms?
If the
is shorted, check
the solenoid drive circuit
using the procedure below:
1. Set the
for
resistance check mode.
2. Place the (-) terminal of
the
on pin 2
of connector
on
the FEEDER
board.
3. Place the
terminal of
the
on
Does the
detect
any current?
Finding
No
No
Solution
Replace the feed
solenoid.
Replace the feed
solenoid and the
FEEDER
board.
Replace the turn
solenoid.
the turn
solenoid and the
FEEDER
board.
5-8
Rev.
