Read Sharp MX-6201N / MX-7001N (serv.man20) Service Manual online
MX-7001N SELF DIAG AND TROUBLE CODE 8 – 32
U2-91
Adjustment value check sum error
(PCU detection)
(PCU detection)
U5-00
SPF communication trouble
U5-16
SPF fan motor trouble
U5-30
SPF tray lift-up trouble
U5-31
SPF tray lift-down trouble
U6-09
LCC lift motor trouble
U6-20
LCC communication trouble
U6-21
LCC transport motor trouble
U6-22
LCC 24V power abnormality
U6-23
LCC tray descending trouble
(reverse winding detection)
(reverse winding detection)
Trouble content
EEPROM (PCU) check sum error
Section
PCU
Case 1
Cause
Control circuit hang-up due to electrical noises
Check and
remedy
remedy
Use SIM16 to cancel the trouble.
Case 2
Cause
EEPROM trouble.
Check and
remedy
remedy
Check that EEPROM is properly set.
Use SIM16 to cancel the trouble.
Use SIM16 to cancel the trouble.
Case 3
Cause
PCU PWB EEPROM access circuit trouble
Check and
remedy
remedy
To avoid deletion of the counter data/adjustment
values, use the simulation to save the counter/
adjustment values. (If there is a printer option,
execute SIM22-1 to save the counter data and the
adjustment values.) Replace the PCU PWB.
Use SIM16 to cancel the trouble.
values, use the simulation to save the counter/
adjustment values. (If there is a printer option,
execute SIM22-1 to save the counter data and the
adjustment values.) Replace the PCU PWB.
Use SIM16 to cancel the trouble.
Trouble content
Communication error between the SCU and the
DSPF, communication line test error after turning
on the power or canceling the exclusive simulation
DSPF, communication line test error after turning
on the power or canceling the exclusive simulation
Section
SCU
Case 1
Cause
Malfunction due to electrical noises
Check and
remedy
remedy
Cancel the trouble by turning OFF/ON.
Case 2
Cause
Connector and harness connection trouble or
disconnection
disconnection
Check and
remedy
remedy
Check the connector and the harness of the
communication line.
communication line.
Case 3
Cause
Control (SCU) PWB trouble. DSPF PWB trouble
Check and
remedy
remedy
Replace the control (SCU) PWB. Replace the
DSPF PWB.
DSPF PWB.
Trouble content
The motor lock signal is detected during rotation of
the fan.
the fan.
Section
SCU
Case 1
Cause
Fan motor trouble, harness of the fan motor
related, circuit trouble
related, circuit trouble
Check and
remedy
remedy
Use SIM2-3 to check the operation.
Check harness, connector and fan motor related
circuit.
Check harness, connector and fan motor related
circuit.
Trouble content
Lift-up trouble is detected 5 times continuously.
(STUD does not turn ON within the specified time.)
When re-lifting, a trouble from the first time.
(STUD does not turn ON within the specified time.)
When re-lifting, a trouble from the first time.
Section
SCU
Case 1
Cause
STUD/STLD trouble
Check and
remedy
remedy
Check STUD/STLD and its harness and connector.
Check the lift-up unit.
Check the lift-up unit.
Trouble content
Lift-down trouble (STLD does not turn ON within
the specified time.)
the specified time.)
Section
SCU
Case 1
Cause
STUD/STLD trouble
Check and
remedy
remedy
Check STUD/STLD and its harness and connector.
Check the lift-up unit.
Check the lift-up unit.
Trouble content
• The encoder input value is not changed in
0.2sec (1st time)/0.5sec (2nd time and later)
after rotation of the motor.
after rotation of the motor.
• The motor is rotated for 24sec (LCX2)/48sec
(LCX3) or more.
Section
PCU
Case 1
Cause
Sensor trouble, LCC control PWB trouble, gear
breakage, lift motor trouble
breakage, lift motor trouble
Check and
remedy
remedy
Use SIM4-2 and 4-3 to check the operation of the
sensor and the lift motor. Use SIM15 to cancel the
trouble.
sensor and the lift motor. Use SIM15 to cancel the
trouble.
Trouble content
LCC communication error. Communication line test
error after turning ON the power or canceling the
exclusive simulation. LCC and machine model
codes discrepancy error
error after turning ON the power or canceling the
exclusive simulation. LCC and machine model
codes discrepancy error
Section
PCU
Case 1
Cause
Connector and harness connection trouble or
disconnection, LCC control PWB trouble, control
(PCU) PWB trouble, malfunction due to electrical
noises
disconnection, LCC control PWB trouble, control
(PCU) PWB trouble, malfunction due to electrical
noises
Check and
remedy
remedy
Turn OFF/ON the power to cancel the trouble.
Check the connector and the harness of the
communication line.
Check the connector and the harness of the
communication line.
Trouble content
After passing 1 sec from turning ON the motor, the
lock state of the motor lock signal is detected
continuously for 1 sec.
lock state of the motor lock signal is detected
continuously for 1 sec.
Section
PCU
Case 1
Cause
Motor lock, motor RPM abnormality, an
overcurrent to the motor, LCC control PWB trouble
overcurrent to the motor, LCC control PWB trouble
Check and
remedy
remedy
Use SIM4-3 to check the operation of the transport
motor.
motor.
Trouble content
DC24V power is not supplied to LCC.
Section
PCU
Case 1
Cause
Connector and harness connection trouble or
disconnection, LCC control PWB trouble, power
unit trouble
disconnection, LCC control PWB trouble, power
unit trouble
Check and
remedy
remedy
Check the connector and the harness of the power
line. Check that the power unit and the LCC control
PWB is of 24V.
line. Check that the power unit and the LCC control
PWB is of 24V.
Trouble content
Reverse winding of the LCC tray wire is detected.
Section
PCU
Case 1
Cause
Reverse winding of the wire
Check and
remedy
remedy
Check the wire.
Case 2
Cause
Connector and harness connection trouble
Check and
remedy
remedy
Check connection of the connector and the
harness.
harness.
Case 3
Cause
Reverse winding detection SW-ON, reverse
winding detection SW trouble, LCC control PWB
trouble
winding detection SW trouble, LCC control PWB
trouble
Check and
remedy
remedy
Replace the reverse winding SW and the LCC
control PWB.
control PWB.
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