3NB/3ND/3N0/3NK
1-4-29
(14)
DF eject clutch
does not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
DF eject clutch and DF main PWB (YC14)
2. Defective solenoid.
Replace the DF eject clutch.
3. Defective PWB.
Replace the DF main PWB and check for correct operation
(see page 1-5-2).
(15)
Bridge conveying
motor1,2 does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Bridge conveying motor1,2 and bridge PWB (YC7)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the bridge conveying motor1,2.
4. Defective PWB.
Replace the bridge PWB and check for correct operation.
(16)
Bridge solenoid
does not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Bridge solenoid and engine PWB (YC20)
2. Defective solenoid.
Replace the bridge solenoid.
3. Defective PWB.
Replace the engine PWB and check for correct operation.
(17)
CF main motor
does not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
CF main motor and CF main PWB (YC16)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the CF main motor.
4. Defective PWB.
Replace the CF main PWB and check for correct operation.
(18)
CF adjustment
motor 1,2 does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
CF adjustment motor 1,2 and CF main PWB (YC10)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the CF adjustment motor 1,2.
4. Defective PWB.
Replace the CF main PWB and check for correct operation.
(19)
CF side registra-
tion motor 1,2 does
not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
CF side registration motor 1,2 and CF main PWB (YC10)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the CF side registration motor 1,2.
4. Defective PWB.
Replace the CF main PWB and check for correct operation.
Problem
Causes
Check procedures/corrective measures
Service Manual Y113480-7
Summary of Contents for AK-730
Page 1: ...SERVICE MANUAL Options DF 790 BF 730 MT 730 AK 730 PH 7C Code Y113480 7 ...
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Page 32: ...3NB 3ND 3N0 3NK 1 2 14 3 Remove tape and pad Figure 1 2 18 Tape Pad Service Manual Y113480 7 ...
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