Kyocera FS-9120DN Service Manual page 108

FS-9120DN/9520DN
Problem
(19)
The MP paper feed
clutch does not op-
erate.
(20)
The MP feed clutch
does not operate.
(21)
The registration
clutch does not op-
erate.
(22)
The feedshift sole-
noid does not oper-
ate.
(23)
The toner feed sole-
noid does not oper-
ate.
(24)
The cleaning lamp
does not turn on.
1-5-38
Causes
Broken MP paper feed
clutch coil.
Poor contact in the MP
paper feed clutch connec-
tor terminals.
Defective engine controller
PWB.
Broken MP feed clutch
coil.
Poor contact in the MP
feed clutch connector ter-
minals.
Defective engine controller
PWB.
Broken registration clutch
coil.
Poor contact in the regis-
tration clutch connector
terminals.
Defective engine controller
PWB.
Broken feedshift solenoid
coil.
Poor contact in the
feedshift solenoid connec-
tor terminals.
Defective engine controller
PWB.
Broken toner feed solenoid
coil.
Poor contact in the toner
feed solenoid connector
terminals.
Defective engine controller
PWB.
Poor contact in the clean-
ing lamp connector termi-
nals.
Defective cleaning lamp.
Defective engine controller
PWB.
Check procedures/corrective measures
Check for continuity across the coil. If none, replace the MP pa-
per feed clutch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U032 and check if YC6-A9 on the engine
controller PWB goes low. If not, replace the engine controller
PWB.
Check for continuity across the coil. If none, replace the MP feed
clutch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U032 and check if YC6-A11 on the en-
gine controller PWB goes low. If not, replace the engine control-
ler PWB.
Check for continuity across the coil. If none, replace the registra-
tion clutch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U032 and check if YC16-B6 on the en-
gine controller PWB goes low. If not, replace the engine control-
ler PWB.
Check for continuity across the coil. If none, replace the feedshift
solenoid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the feedshift solenoid turns on when YC16-A1 and YC16-A2
on the engine controller PWB go low. If not, replace the engine
controller PWB.
Check for continuity across the coil. If none, replace the toner
feed solenoid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the toner feed solenoid turns on when YC9-B2 on the engine
controller PWB goes low. If not, replace the engine controller
PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check for continuity. If none, replace the cleaning lamp.
If the cleaning lamp turns on when YC9-B7 on the engine con-
troller PWB is held low, replace the engine controller PWB.