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MX-5500N MX-6200N MX-7000N (serv.man47)
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33
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322.94 KB
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PDF
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Service Manual
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Device
Copying Equipment / Self diagnostics Trouble Codes
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mx-5500n-mx-6200n-mx-7000n-sm47.pdf
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Sharp MX-5500N / MX-6200N / MX-7000N (serv.man47) Service Manual ▷ View online

MX-7000N  SELF DIAG AND TROUBLE CODE  8 – 31
 
U2-50
HDD section individual data check
sum error (MFP)
 
U2-80
EEPROM read/write error 
(SCU detection)
 
U2-81
Adjustment value check sum error
(SCU detection)
 
U2-90
EEPROM read/write error 
(PCU detection)
 
U2-91
Adjustment value check sum error 
(PCU detection)
 
U5-00
SPF communication trouble
 
U5-16
SPF fan motor trouble
Trouble content
MFPcnt HDD individual data check sum error 
(One-touch, group, program, etc.)
Section
MFP
Case 1
Cause
Write/read error to/from HDD
Check and 
remedy
1)
Turn OFF/ON the power to initialize the data 
related to the check sum error contents 
automatically.
2)
Since the registered contents have been 
deleted, register them again.
3)
If the trouble is not canceled, replace the 
HDD.
Case 2
Cause
Control circuit hang-up due to electrical noises
Check and 
remedy
Use SIM16 to cancel U2 trouble.
Case 3
Cause
MFPcnt PWB HDD access circuit trouble
Check and 
remedy
Replace the MFPcnt PWB.
Trouble content
1)
EEPROM version error
2)
Write error to EEPROM
Section
SCU
Case 1
Cause
EEPROM trouble, installation of EEPROM which is 
not initialized
Check and 
remedy
Check that EEPROM is properly set.
Case 2
Cause
SCU PWB EEPROM access circuit trouble
Check and 
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 SCU PWB. Use 
SIM16 to cancel the trouble.
Trouble content
EEPROM (SCU) check sum error
Section
SCU
Case 1
Cause
Control circuit hang-up due to electrical noises
Check and 
remedy
Use SIM16 to cancel U2 trouble.
Case 2
Cause
EEPROM trouble
Check and 
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 SCU PWB. Use 
SIM16 to cancel the trouble.
Case 3
Cause
SCU PWB EEPROM access circuit trouble
Check and 
remedy
Check that EEPROM is properly set.
Trouble content
EEPROM version error, write error to EEPROM
Section
PCU
Case 1
Cause
EEPROM trouble,  installation of EEPROM which 
is not initialized.
Installation of 64KBit EEPROM
Check and 
remedy
Check that EEPROM is properly set.
Check to insure that 256KBit EEPROM is installed.
Case 2
Cause
PCU PWB EEPROM access circuit trouble
Check and 
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.
Trouble content
EEPROM (PCU) check sum error
Section
PCU
Case 1
Cause
Control circuit hang-up due to electrical noises
Check and 
remedy
Use SIM16 to cancel the trouble.
Case 2
Cause
EEPROM trouble.
Check and 
remedy
Check that EEPROM is properly set.
Use SIM16 to cancel the trouble.
Case 3
Cause
PCU PWB EEPROM access circuit trouble
Check and 
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.
Trouble content
Communication error between the SCU and the 
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
Cancel the trouble by turning OFF/ON.
Case 2
Cause
Connector and harness connection trouble or 
disconnection
Check and 
remedy
Check the connector and the harness of the 
communication line.
Case 3
Cause
Control (SCU) PWB trouble. DSPF PWB trouble
Check and 
remedy
Replace the control (SCU) PWB. Replace the 
DSPF PWB.
Trouble content
The motor lock signal is detected during rotation of 
the fan.
Section
SCU
Case 1
Cause
Fan motor trouble, harness of the fan motor 
related, circuit trouble
Check and 
remedy
Use SIM2-3 to check the operation.
Check harness, connector and fan motor related 
circuit.
MX-7000N  SELF DIAG AND TROUBLE CODE  8 – 32
 
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)
 
U6-24
LCC tray lock detection trouble
 
U6-51
LCC incompatibility trouble
 
UC-02
CPT-ASIC trouble
Trouble content
Lift-up trouble is detected 5 times continuously. 
(STUD does not turn ON within the specified time.)
Section
SCU
Case 1
Cause
STUD/STLD trouble
Check and 
remedy
Check STUD/STLD and its harness and connector. 
Check the lift-up unit.
Trouble content
Lift-down trouble (STLD does not turn OFF within 
the specified time.)
Section
SCU
Case 1
Cause
STUD/STLD trouble
Check and 
remedy
Check STUD/STLD and its harness and connector. 
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.
• 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
Check and 
remedy
Use SIM4-2 and 4-3 to check the operation of the 
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
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
Check and 
remedy
Turn OFF/ON the power to cancel the trouble. 
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.
Section
PCU
Case 1
Cause
Motor lock, motor RPM abnormality, an 
overcurrent to the motor, LCC control PWB trouble
Check and 
remedy
Use SIM4-3 to check the operation of the transport 
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
Check and 
remedy
Check the connector and the harness of the power 
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
Check the wire.
Case 2
Cause
Connector and harness connection trouble
Check and 
remedy
Check connection of the connector and the 
harness.
Case 3
Cause
Reverse winding detection SW-ON, reverse 
winding detection SW trouble, LCC control PWB 
trouble
Check and 
remedy
Replace the reverse winding SW and the LCC 
control PWB.
Trouble content
Malfunction of the LCC tray lock mechanism is 
detected.
Section
PCU
Case 1
Cause
Tray lock mechanism trouble
Check and 
remedy
Check the tray lock mechanism.
Case 2
Cause
Connector and harness connection trouble
Check and 
remedy
Check connection of the connector and the 
harness.
Case 3
Cause
Tray lock detection sensor trouble, LCC control 
PWB trouble
Check and 
remedy
Replace the tray lock detection sensor and the 
LCC control PWB.
Trouble content
Detection of LCC connection which is incompatible 
with the MX-5500N/6200N/7000N series.
Section
PCU
Case 1
Cause
Connection of the LCC, which is incompatible with 
the MX-5500N/6200N/7000N series is detected.
Check and 
remedy
Connect the MX-LCX2/MX-LCX3.
Trouble content
CPT-ASIC access error (When the ASIC does not 
operate normally.)
Section
SCU
Case 1
Cause
1)
CPT-ASIC abnormality
2)
SCU PWB abnormality
Check and 
remedy
Turn OFF/ON the power several times. If the 
trouble still occurs, replace the SCU PWB or the 
CPT-ASIC.
MX-7000N  SELF DIAG AND TROUBLE CODE  8 – 33
 
UC-20
Document control module trouble
 
UC-21
DOCC (Document Control) PWB 
not-detected (DSK model only)
Trouble content
Communication error between SCU and DOCC
Communication line test error when turning on the 
power or after canceling an exclusion simulation.
Section
SCU
Case 1
Cause
Connector or harness connection error or 
disconnection
Check and 
remedy
Check the connector and harness in the 
communication line.
Case 2
Cause
Control (SCU) PWB trouble. DOCC PWB trouble.
Check and 
remedy
Replace the SCU PWB or the DOCC PWB.
Case 3
Cause
Malfunction due to electrical noises.
Check and 
remedy
Turn OFF/ON the power to electrical cancel the 
trouble.
Trouble content
When the data security kit ROM (BOOT, PROG1, 
2) is installed, the DOCC PWB is not detected.
Section
SCU
Case 1
Cause
Connector or harness connection error or 
disconnection
Check and 
remedy
Check the connector and harness in the 
communication line.
Case 2
Cause
Control (SCU) PWB trouble. DOCC PWB trouble.
Check and 
remedy
Replace the SCU PWB or the DOCC PWB.
Case 3
Cause
DOCC PWB not-installed
Check and 
remedy
Install the DOCC PWB.
MX-7000N  SELF DIAG AND TROUBLE CODE  8 – 33
 
UC-20
Document control module trouble
 
UC-21
DOCC (Document Control) PWB 
not-detected (DSK model only)
Trouble content
Communication error between SCU and DOCC
Communication line test error when turning on the 
power or after canceling an exclusion simulation.
Section
SCU
Case 1
Cause
Connector or harness connection error or 
disconnection
Check and 
remedy
Check the connector and harness in the 
communication line.
Case 2
Cause
Control (SCU) PWB trouble. DOCC PWB trouble.
Check and 
remedy
Replace the SCU PWB or the DOCC PWB.
Case 3
Cause
Malfunction due to electrical noises.
Check and 
remedy
Turn OFF/ON the power to electrical cancel the 
trouble.
Trouble content
When the data security kit ROM (BOOT, PROG1, 
2) is installed, the DOCC PWB is not detected.
Section
SCU
Case 1
Cause
Connector or harness connection error or 
disconnection
Check and 
remedy
Check the connector and harness in the 
communication line.
Case 2
Cause
Control (SCU) PWB trouble. DOCC PWB trouble.
Check and 
remedy
Replace the SCU PWB or the DOCC PWB.
Case 3
Cause
DOCC PWB not-installed
Check and 
remedy
Install the DOCC PWB.
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Sharp MX-5500N / MX-6200N / MX-7000N (serv.man47) Service Manual ▷ Download