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Problem
(5)
The transfer motor
does not operate
(C2550).
(6)
Paper feed motor 1
does not operate.
(7)
Paper feed motor 2
does not operate.
(8)
Paper feed motor 3
does not operate.
1-5-58
Causes
Poor contact in the transfer
motor connector terminals.
Broken transfer motor gear.
Defective transfer motor.
Defective cassette PWB.
Defective engine PWB.
Poor contact in paper feed
motor 1 connector termi-
nals.
Broken paper feed motor 1
gear.
Defective paper feed motor
1.
Defective deck PWB.
Poor contact in paper feed
motor 2 connector termi-
nals.
Broken paper feed motor 2
gear.
Defective paper feed motor
2.
Defective deck PWB.
Poor contact in paper feed
motor 3 connector termi-
nals.
Broken paper feed motor 3
gear.
Defective paper feed motor
3.
Defective cassette PWB.
Check procedures/corrective measures
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check visually and replace the transfer motor if necessary.
Run maintenance item U030 and check if the transfer motor oper-
ates when YC3-3 on the cassette PWB goes low. If not, replace
the transfer motor.
Run maintenance item U030 and check if YC3-3 on the cassette
PWB goes low. If not, replace the cassette PWB.
Run maintenance item U030 and check if YC4-4 on the engine
PWB goes low. If not, replace the engine PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check visually and replace paper feed motor 1 if necessary.
Run maintenance item U030 and check if paper feed motor 1
operates when YC8-1, YC8-3, YC8-4 and YC8-6 on the deck
PWB go low. If not, replace paper feed motor 1.
Run maintenance item U030 and check if YC8-1, YC8-3, YC8-4
and YC8-6 on the deck PWB go low. If not, replace the deck PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check visually and replace paper feed motor 2 if necessary.
Run maintenance item U030 and check if paper feed motor 2
operates when YC8-7, YC8-8, YC8-9 and YC8-10 on the deck
PWB go low. If not, replace paper feed motor 2.
Run maintenance item U030 and check if YC8-7, YC8-8, YC8-9
and YC8-10 on the deck PWB go low. If not, replace the deck
PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check visually and replace paper feed motor 3 if necessary.
Run maintenance item U030 and check if paper feed motor 3
operates when YC6-11, YC6-12, YC6-13 and YC6-14 on the cas-
sette PWB go low. If not, replace paper feed motor 3.
Run maintenance item U030 and check if YC6-11, YC6-12, YC6-
13 and YC6-14 on the cassette PWB go low. If not, replace the
cassette PWB.
Service Manual
Y104350-7
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