Kyocera 300ci Service Manual page 289

Problem
(7) 1. Broken fan motor coil.
Loop fan motor or
2. Poor contact in the con-
paper conveying fan
motor 1/2 does not
operate.
3. Defective fan motor.
4. Defective feed PWB.
5. Defective engine PWB.
(8) 1. Broken fan motor coil.
Scanner fan motor
2. Poor contact in the con-
does not operate.
3. Defective fan motor.
4. Defective ISC PWB.
5. Defective ISM PWB.
(9) 1. Broken fan motor coil.
Main fan motor or
2. Poor contact in the con-
developing fan motor
3/4 does not operate.
(10) 1. Broken fan motor coil.
Middle motor, scan-
2. Poor contact in the con-
ner motor or transfer
motor does not oper-
ate.
Causes
nector terminals.
nector terminals.
nector terminals.
nector terminals.
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.
Run maintenance item U037 and check if the fan motor operates
when the following terminals on the PWB goes low. If not, replace
the corresponding fan motor.
40/40, 50/40 ppm model
Loop fan motor: YC14-A14 on the feed PWB
Paper conveying fan motor 1: YC14-B3 on the feed PWB
Paper conveying fan motor 2: YC14-B5 on the feed PWB
25/25, 30/30 ppm model
Loop fan motor: YC15-10 on the feed PWB
Paper conveying fan motor 1: YC14-1 on the feed PWB
Paper conveying fan motor 2: YC14-3 on the feed PWB
Run maintenance item U037 and check if following terminals on
the feed PWB goes low. If not, replace the feed PWB.
40/40, 50/40 ppm model
Loop fan motor: YC14-A14 on the feed PWB
Paper conveying fan motor 1: YC14-B3 on the feed PWB
Paper conveying fan motor 2: YC14-B5 on the feed PWB
25/25, 30/30 ppm model
Loop fan motor: YC15-10 on the feed PWB
Paper conveying fan motor 1: YC14-1 on the feed PWB
Paper conveying fan motor 2: YC14-3 on the feed PWB
Run maintenance item U037 and check if following terminals on
the engine PWB goes low. If not, replace the engine PWB.
Loop fan motor: YC20-A2 on the engine PWB
Paper conveying fan motor 1/2: YC20-B14 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.
Run maintenance item U037 and check if the fan motor operates
when the following terminals on the PWB goes low. If not, replace
the corresponding fan motor.
Scanner fan motor: YC3-2 on the ISM PWB
Run maintenance item U037 and check if following terminals on
the ISC PWB goes high. If not, replace the ISC PWB.
Scanner fan motor: YC3-24 on the ISC PWB
Run maintenance item U037 and check if following terminals on
the ISM PWB goes low. If not, replace the ISM PWB.
Scanner fan motor: YC3-2 on the ISM 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 fan motor.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
2JZ/2JX/2JV/2H7-1
1-4-71