Specifications

MX-3610N TROUBLESHOOTING 6 – 33
U2-91 PCU PWB EEPROM check sum error
U6-00 PCU PWB - Paper feed desk (paper
feed tray 3, 4) communication trouble
U6-01 Desk paper feed tray 1 lift trouble
U6-02 Desk paper feed tray 2 lift trouble
U6-09 LCC lift motor trouble
U6-10 Desk paper feed unit paper transport
motor trouble
U6-20 LCC control PWB - PCU PWB
communication error
Trouble content
Detail PCU
Cause PCU PWB EEPROM trouble
PCU PWB trouble
EEPROM socket contact trouble
Check & Remedy Replace the PCU PWB EEPROM.
Replace the PCU PWB.
Check contact of the EEPROM socket.
Use SIM16 to cancel the trouble. (The check sum
error detection data are calculated again to reset the
proper check sum data.)
Trouble content
Detail PCU
Cause Connection trouble of the connector and the harness.
Paper feed desk control PWB trouble
PCU PWB trouble
Check & Remedy Check connection of the connector and the harness.
Replace the paper feed desk control PWB.
Replace the PCU PWB.
Trouble content D1ULD does not turn ON within the specified time
when lift-up operation.
Detail PCU
Cause D1ULD sensor trouble.
Desk control PWB trouble.
Lift unit trouble.
Connection trouble of the connector and the harness.
PCU PWB trouble.
Check & Remedy Replace the D1ULD sensor.
Replace the desk control PWB.
Replace the lift unit.
Check connection of the connector and the harness.
Replace the PCU PWB.
Trouble content D2ULD does not turn ON within the specified time
when lift-up operation.
Detail PCU
Cause D2ULD sensor trouble
Desk control PWB trouble
Lift unit trouble
Connection trouble of the connector and the harness.
PCU PWB trouble
Check & Remedy Replace the D2ULD sensor.
Replace the desk control PWB.
Replace the lift unit.
Check connection of the connector and the harness.
Replace the PCU PWB.
Trouble content No variation in the motor rotation sensor signal
(encoder sign) is detected within the specified time
after booting or stopping the LCC lift motor.
Detail PCU
Cause LCC lift motor rotation sensor trouble
LCC control PWB trouble
LCC lift mechanism trouble
LCC lift motor trouble
Check & Remedy Use SIM4-2 and 4-3 to check the operation of the LCC
sensor and the lift motor.
Check the LCC lift motor rotation sensor, and replace
if necessary.
Check the LCC control PWB, and replace if
necessary.
Check the LCC lift mechanism, and repair if
necessary.
Check the LCC lift motor, and replace if necessary.
Use SIM15 to cancel the trouble.
Trouble content
Detail PCU
Cause Desk paper feed motor trouble (motor lock, motor rpm
abnormality, over-current to the motor).
Desk control PWB trouble
Connection trouble of the connector and the harness.
Check & Remedy Use SIM4-3 to check the operation of the desk
transport motor.
Replace the desk control PWB.
Replace the desk paper feed motor.
Check connection of the connector and the harness.
Trouble content .
Detail PCU
Cause Communication error between the LCC control PWB
and the PCU PWB.
Connection trouble of the harness and the connector
between the machine and the LCC and those of the
LCC control PWB.
LCC control PWB trouble
PCU PWB trouble
Malfunction due to noises.
Check & Remedy Check to confirm the LCC model.
Check the connection of the harness and the
connector between the machine and the LCC and
those of the LCC control PWB, and replace if
necessary.
Check the LCC control PWB, and replace if
necessary.
Check the PCU PWB, and replace if necessary.