Read Sharp AR-C170 (serv.man28) Service Manual online
AR-C170M TROUBLESHOOTING 11 - 6
Main
code
code
Sub
code
Title
Color correction data transfer
abnormality
abnormality
E7
41
Display
Lamp/Message
Phenomenon Detail
Data transfer error from the
Nand-Flash for holding
color correction data to the
FC-RAM for holding color
correction image process
Nand-Flash for holding
color correction data to the
FC-RAM for holding color
correction image process
Section
MFP PWB
Case 1
Cause
MFP PWB trouble
Check &
Remedy
Remedy
Replace the MFP PWB.
Main
code
code
Sub
code
Title
ICU-SCN communication trouble
(ICU detection)
(ICU detection)
E7
80
Display
Lamp/Message
Phenomenon Detail
Communication
establishment error,
framing, parity, protocol
error
establishment error,
framing, parity, protocol
error
Section
ICU/MFP PWB
Case 1
Cause
Disconnection of the ICU/
MFP PWB scanner
communication connector.
Defective harness of the
ICU PWB and the MFP
PWB.
MFP PWB scanner
communication connector.
Defective harness of the
ICU PWB and the MFP
PWB.
Check &
Remedy
Remedy
Check connection of the
ICU PWB and the MFP
PWB. Check the harness.
ICU PWB and the MFP
PWB. Check the harness.
Case 2
Cause
ICU/MFP PWB trouble
Check &
Remedy
Remedy
Check grounding of the
machine. Replace the ICU
PWB or the MFP PWB.
machine. Replace the ICU
PWB or the MFP PWB.
Main
code
code
Sub
code
Title
ICU-PCU communication trouble
(ICU detection)
(ICU detection)
E7
90
Display
Lamp/Message
Phenomenon Detail
Communication
establishment error,
framing, parity, protocol
error
establishment error,
framing, parity, protocol
error
Section
ICU/PCU PWB
Case 1
Cause
Disconnection of the ICU/
PCU PWB scanner
communication connector.
Defective harness of the
ICU PWB and the PCU
PWB.
PCU PWB scanner
communication connector.
Defective harness of the
ICU PWB and the PCU
PWB.
Check &
Remedy
Remedy
Check connection of the
ICU PWB and the PCU
PWB. Check the harness.
ICU PWB and the PCU
PWB. Check the harness.
Case 2
Cause
ICU/PCU PWB trouble
Check &
Remedy
Remedy
Check grounding of the
machine. Replace the ICU
PWB or the PCU PWB.
machine. Replace the ICU
PWB or the PCU PWB.
Main
code
code
Sub
code
Title
Saddle finisher/sorter
communication trouble (Machine
detection)
communication trouble (Machine
detection)
F1
00
Display
Lamp/Message
Phenomenon Detail
Communication line test
error when turning on the
power or after canceling the
exclusive simulation.
Communication error with
the saddle finisher/sorter.
error when turning on the
power or after canceling the
exclusive simulation.
Communication error with
the saddle finisher/sorter.
Section
PCU PWB and saddle
finisher/sorter
finisher/sorter
Case 1
Cause
Disconnection of the PCU-
saddle finisher/sorter
connector, defective contact
or disconnection of the
harness.
saddle finisher/sorter
connector, defective contact
or disconnection of the
harness.
Check &
Remedy
Remedy
Check the connector and
the harness of the
communication line.
the harness of the
communication line.
Case 2
Cause
Saddle finisher/sorter
control PWB trouble
control PWB trouble
Check &
Remedy
Remedy
Replace the saddle finisher/
sorter control PWB.
sorter control PWB.
Case 3
Cause
Control PWB (PCU) trouble
Check &
Remedy
Remedy
Replace the PCU PWB.
Case 4
Cause
Malfunctions by noises
Check &
Remedy
Remedy
—
Common
Cancel
method
method
Can be canceled by turning
OFF/ON the power.
OFF/ON the power.
Main
code
code
Sub
code
Title
Saddle finisher transport motor
trouble (Saddle finisher detection)
trouble (Saddle finisher detection)
F1
02
Display
Lamp/Message
Phenomenon Detail
Transport motor drive
trouble
trouble
Section
Transport
Case 1
Cause
Motor lock
Check &
Remedy
Remedy
Use SIM 3-3 to check the
transport motor operation.
transport motor operation.
Case 2
Cause
Motor RPM abnormality
Check &
Remedy
Remedy
Same as Case 1.
Case 3
Cause
Over current to the motor
Check &
Remedy
Remedy
Same as Case 1.
Case 4
Cause
Saddle finisher control PWB
trouble
trouble
Check &
Remedy
Remedy
Same as Case 1.
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