Electrical Problems - Kyocera Mita KM-2530 Service Manual

1-3-3 Electrical problems

Problem
(1)
The paper conveying
motor does not
operate.
(2)
The feedshift
solenoid does not
operate.
(3)
The pickup solenoid
does not operate.
(4)
The front side
registration motor
does not operate.
(5)
The rear side
registration motor
does not operate.
(6)
The trailing edge
registration motor
does not operate.
Causes
Broken paper conveying
motor coil.
Poor contact of the paper
conveying motor connector
terminals.
Defective finisher main
PCB.
Broken feedshift solenoid
coil.
Poor contact of the
feedshift solenoid
connector terminals.
Defective finisher main
PCB.
Broken pickup solenoid
coil.
Poor contact of the pickup
solenoid connector
terminals.
Defective finisher main
PCB.
Broken front side
registration motor coil.
Poor contact of the front
side registration motor
connector terminals.
Defective finisher main
PCB.
Broken rear side
registration motor coil.
Poor contact of the rear
side registration motor
connector terminals.
Defective finisher main
PCB.
Broken trailing edge
registration motor coil.
Poor contact of the trailing
edge registration motor
connector terminals.
Defective finisher main
PCB.
Check procedures/corrective measures
Check for continuity across the coil. If none, replace the paper
conveying motor.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if a motor drive coil energization signal is output at CN9-9,
CN9-10, CN9-11 and CN9-12 on the finisher main PCB. If not,
replace the finisher main PCB.
Check for continuity across the coil. If none, replace the feedshift
solenoid.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if CN4-2 and CN4-4 on the finisher main PCB go low. If
not, replace the finisher main PCB.
Check for continuity across the coil. If none, replace the pickup
solenoid.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if CN4-7 on the finisher main PCB goes low. If not, replace
the finisher main PCB.
Check for continuity across the coil. If none, replace the front side
registration motor.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if a motor drive coil energization signal is output at CN5-1,
CN5-3, CN5-4 and CN5-5 on the finisher main PCB. If not,
replace the finisher main PCB.
Check for continuity across the coil. If none, replace the rear side
registration motor.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if a motor drive coil energization signal is output at CN5-6,
CN5-8, CN5-9 and CN5-10 on the finisher main PCB. If not,
replace the finisher main PCB.
Check for continuity across the coil. If none, replace the trailing
edge registration motor.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if a motor drive coil energization signal is output at CN6-1,
CN6-2, CN6-3 and CN6-4 on the finisher main PCB. If not,
replace the finisher main PCB.
3B5
1-3-7