Kyocera Mita KM-4530 Service Manual page 200

• DF
Problem
(1) Defective original feed mo-
The original feed tor coil.
motor does not
The connector terminals of
operate.
the original feed motor
make poor contact.
Defective DF driver PCB.
(2) Defective original convey-
The original convey- ing motor coil.
ing motor does not
The connector terminals of
operate.
the original conveying mo-
tor make poor contact.
Defective DF driver PCB.
(3) Defective original feed so-
The original feed lenoid coil.
solenoid does not
The connector terminals of
operate.
the original feed solenoid
make poor contact.
Defective DF driver PCB.
(4) Defective switchback
The switchback feedshift solenoid coil.
feedshift solenoid
The connector terminals of
does not operate.
the switchback feedshift
solenoid make poor con-
tact.
Defective DF driver PCB.
(5) Defective eject feedshift
The eject feedshift solenoid coil.
solenoid does not
The connector terminals of
operate.
the eject feedshift solenoid
make poor contact.
Defective DF driver PCB.
(6) Defective switchback pres-
The switchback sure solenoid coil.
pressure solenoid
The connector terminals of
does not operate.
the switchback pressure
solenoid make poor con-
tact.
Defective DF driver PCB.
Causes
Check for continuity across the coil. If none, replace the original
feed motor.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check for continuity across the original feed motor coil and con-
nector terminals. If good, replace the DF driver PCB.
Check for continuity across the coil. If none, replace the original
conveying motor.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check for continuity across the original conveying motor coil and
connector terminals. If good, replace the DF driver PCB.
Check for continuity across the coil. If none, replace the original
feed solenoid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the original feed solenoid operates when CN5-B13 or
CN5-B12 on the DF driver PCB is low. If it does, replace the DF
driver PCB.
Check for continuity across the coil. If none, replace the switch-
back feedshift solenoid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the switchback feedshift solenoid operates when CN5-
B8 on the DF driver PCB is low. If it does, replace the DF driver
PCB.
Check for continuity across the coil. If none, replace the eject
feedshift solenoid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the eject feedshift solenoid operates when CN5-A7 on
the DF driver PCB is low. If it does, replace the DF driver PCB.
Check for continuity across the coil. If none, replace the switch-
back pressure solenoid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the switchback pressure solenoid operates when CN5-
A2 or CN5-A3 on the DF driver PCB is low. If it does, replace the
DF driver PCB.
Check procedures/corrective measures
2BC/D
1-5-53