Read Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man15) Service Manual online
MX-4101N SELF DIAG AND TROUBLE CODE 7 – 10
E7-28
LSU-PCU connection error
E7-29
LSU ASIC frequency error
E7-42
Date error (ACRE ASIC)
E7-46
Decode error (ACRE ASIC)
E7-48
Memory error (ACRE ASIC)
E7-49
Water Mark data error
E7-50
Engine connection trouble
E7-55
PWB information sum error
(Engine detection)
(Engine detection)
E7-60
Combination error between the MFP
PWB and other PWB, firmware
PWB and other PWB, firmware
E7-61
Combination error between the MFP
PWB and the PCU PWB
PWB and the PCU PWB
E7-65
MFP EEPROM sum check error
Trouble content
Detail
PCU
Cause
Communication error between the CPU in the PCU
PWB and the control ASIC.
Improper connection of the communication
connector between the PCU PWB and the LSU cnt
PWB (interface PWB).
Harness trouble between the PCU PWB and the LSU
cnt PWB (interface PWB)
PCU PWB or LSU cnt PWB (interface PWB) trouble
PWB and the control ASIC.
Improper connection of the communication
connector between the PCU PWB and the LSU cnt
PWB (interface PWB).
Harness trouble between the PCU PWB and the LSU
cnt PWB (interface PWB)
PCU PWB or LSU cnt PWB (interface PWB) trouble
Check & Remedy
Check connection of the connector and the harness
between the PCU PWB and the LSU cnt PWB
(interface PWB).
Replace the LSU cnt PWB.
Replace the PCU PWB.
between the PCU PWB and the LSU cnt PWB
(interface PWB).
Replace the LSU cnt PWB.
Replace the PCU PWB.
Trouble content
Detail
PCU
Cause
Oscillation abnormality of the external oscillator and
the internal oscillating circuit used in the LSU ASIC.
LSU ASIC abnormality on the LSU ASIC PWB.
the internal oscillating circuit used in the LSU ASIC.
LSU ASIC abnormality on the LSU ASIC PWB.
Check & Remedy
Replace the LSU cnt PWB.
Trouble content
Detail
MFP
Cause
Image transfer trouble.
Detail
Check the connection state of the ACRE ASIC PWB
connector.
Replace the ACRE ASIC PWB.
connector.
Replace the ACRE ASIC PWB.
Trouble content
Detail
MFP
Cause
Compression data abnormality.
Garbled data are produced in image compression/
transmission.
ACRE ASIC PWB trouble.
Garbled data are produced in image compression/
transmission.
ACRE ASIC PWB trouble.
Check & Remedy
Check the installation state of the PWB.
Check connection of the ACRE ASIC PWB.
Replace the ACRE ASIC PWB.
Check connection of the ACRE ASIC PWB.
Replace the ACRE ASIC PWB.
Trouble content
Detail
MFP
Cause
DIMM trouble, memory slot trouble.
DIMM insertion trouble, different DIMM inserted.
DIMM insertion trouble, different DIMM inserted.
Check & Remedy
DIMM trouble.
Replace the PWB.
Replace the PWB.
Trouble content
Detail
MFP
Cause
Check & Remedy
Trouble content
Detail
PCU
Cause
A PWB, or firmware, or LSU which is not supported
by the machine specifications is detected in the PCU
PWB.
PCU PWB trouble.
LSU trouble.
by the machine specifications is detected in the PCU
PWB.
PCU PWB trouble.
LSU trouble.
Check & Remedy
Check the kind and the version of the firmware.
Check the LSU, and replace it if necessary.
Check the PCU PWB, and replace it if necessary.
Check the LSU, and replace it if necessary.
Check the PCU PWB, and replace it if necessary.
Trouble content
PCU EEPROM PWB information sum error
Detail
PCU
Cause
PCU EEPROM sum check error.
PCU EEPROM trouble.
PCU EEPROM contact trouble.
Malfunction due to noises
PCU EEPROM trouble.
PCU EEPROM contact trouble.
Malfunction due to noises
Check & Remedy
Replace the PCU PWB.
Replace the PCU EEPROM.
Replace the PCU EEPROM.
Trouble content
Detail
MFP
Cause
A PWB or firmware which is not supported by the
machine specifications is detected in the MFP PWB.
MFP PWB trouble.
The PWB/firmware which is not supported by the
machine specifications is connected.
machine specifications is detected in the MFP PWB.
MFP PWB trouble.
The PWB/firmware which is not supported by the
machine specifications is connected.
Check & Remedy
Check the kind and the version of the firmware.
Check the MFP PWB, and replace it if necessary.
Check the MFP PWB, and replace it if necessary.
Trouble content
Detail
MFP
Cause
Combination error between the MFP PWB and the
PCU PWB.
MFP PWB trouble.
PCU PWB trouble.
PCU PWB.
MFP PWB trouble.
PCU PWB trouble.
Check & Remedy
Check the combination between the MFP PWB and
the PCU PWB.
Replace the MFP PWB.
Replace the PCU PWB.
the PCU PWB.
Replace the MFP PWB.
Replace the PCU PWB.
Trouble content
Detail
MFP
Cause
MFP PWB EEPROM device breakdown.
Contact trouble of the MFP EEPROM device.
Malfunction due to noises.
Contact trouble of the MFP EEPROM device.
Malfunction due to noises.
Check & Remedy
Replace the MFP PWB.
Replace the MFP PWB EEPROM.
Replace the MFP PWB EEPROM.
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