Kyocera KM-C2520 Service Manual page 217

Problem
(4) 1. Broken fan motor coil.
The high voltage fan
2. Poor contact in the con-
motor does not oper-
ate.
(5) 1. Broken clutch coil.
Paper feed clutch 1/
2. Poor contact in the con-
2, MP paper feed
clutch, MP paper
conveying clutch,
3. Defective feed PWB.
paper conveying
clutch or registration
clutch does not oper-
ate.
4. Defective engine PWB.
(6) 1. Broken fan motor coil.
The scanner motor
2. Poor contact in the con-
does not operate.
(7) 1. Broken LSU cleaning
The LSU cleaning
solenoid does not
2. Poor contact in the con-
operate.
3. Defective feed PWB.
4. Defective engine PWB.
(8) 1. Broken MP solenoid coil.
The MP solenoid
does not operate.
2. Poor contact in the con-
3. Defective engine PWB.
(9) 1. Defective drum unit.
Main charging is not
2. The connector terminals
performed.
3. Defective engine PWB.
4. Defective main high volt-
Causes
nector terminals.
nector terminals.
nector terminals.
solenoid coil.
nector terminals.
nector terminals.
of main high voltage
PWB make poor contact.
age PWB.
Check procedures/corrective measures
Check for continuity across the coil. If none, replace the fan 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 coil. If none, replace the 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 following terminals on
the feed PWB goes low. If not, replace the feed PWB.
Paper feed clutch 1/2: YC13-1, 14-1 on the feed PWB
Paper conveying clutch: YC11-1 on the feed PWB
Run maintenance item U032 and check if following terminals on
the engine PWB goes low. If not, replace the engine PWB.
MP paper feed clutch: YC24-B8 on the engine PWB
MP paper conveying clutch: YC24-B10 on the engine PWB
Registration clutch: YC8-20 on the engine PWB
Check for continuity across the coil. If none, replace the fan 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 coil. If none, replace the MP sole-
noid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U474 and check if the LSU cleaning sole-
noid operates. If not, replace the feed PWB.
Run maintenance item U474 and check if the LSU cleaning sole-
noid operates. If not, replace the engine PWB.
Check for continuity across the coil. If none, replace the MP sole-
noid.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U033 and check if the MP solenoid oper-
ates. If not, replace the engine PWB.
(See page 1-4-50.)
2FZ/2F0/2HC-5
1-4-57