Kyocera KM-4230 Service Manual page 534

Problem
(4) Defective switch-
The switch- back feedshift so-
back feedshift lenoid coil.
solenoid does
The connector
not operate.
terminals of the
switchback feed-
shift solenoid
make poor contact.
Defective DF
driver PCB.
(5) Defective eject
The eject feedshift solenoid
feedshift sole- coil.
noid does not
The connector
operate.
terminals of the
eject feedshift
solenoid make
poor contact.
Defective DF
driver PCB.
(6) Defective switch-
The switch- back pressure so-
back pressure lenoid coil.
solenoid does
The connector
not operate.
terminals of the
switchback pres-
sure solenoid
make poor contact.
Defective DF
driver PCB.
Causes Check procedures/corrective measures
Check for continuity across the coil. If none,
replace the switchback feedshift solenoid.
Reinsert the connector. Also check for
continuity within the connector 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 connector 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 switchback pressure solenoid.
Reinsert the connector. Also check for
continuity within the connector 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.
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