Read Sharp AR-C170 (serv.man28) Service Manual online
AR-C170M TROUBLESHOOTING 11 - 20
Main
code
code
Sub
code
Title
ICU-PRT communication trouble
(ICU detection)
(ICU detection)
F9
00
Display
Lamp/Message
Phenomenon Detail
Communication
establishment error,
framing, parity, protocol
error
establishment error,
framing, parity, protocol
error
Section
ICU/PRT PWB
Case 1
Cause
Defective connection of the
ICU/PRT PWB
communication connector,
defective harness between
the ICU PWB and the PRT
PWB
ICU/PRT PWB
communication connector,
defective harness between
the ICU PWB and the PRT
PWB
Check &
Remedy
Remedy
Check connection and the
harness between the ICU
PWB and the MFP PWB.
Check the machine earth.
harness between the ICU
PWB and the MFP PWB.
Check the machine earth.
Case 2
Cause
Defective ICU PWB/PRT
PWB
PWB
Check &
Remedy
Remedy
Replace the ICU or the PRT
PWB.
PWB.
Main
code
code
Sub
code
Title
PRT DRAM trouble
F9
01
Display
Lamp/Message
Phenomenon Detail
DRAM in the PRT PWB
cannot be accessed.
cannot be accessed.
Section
PRT PWB
Case 1
Cause
Defective installation of the
DRAM
DRAM
Check &
Remedy
Remedy
Check connection of the
DRAM.
DRAM.
Case 2
Cause
Defective DRAM
Check &
Remedy
Remedy
Replace the DRAM.
Main
code
code
Sub
code
Title
NIC port check error
F9
03
Display
Lamp/Message
Phenomenon Detail
NIC port check error
Section
—
Case 1
Cause
Defective connection of the
NIC connector.
NIC connector.
Check &
Remedy
Remedy
Check the NIC connector
again.
again.
Case 2
Cause
Defective NIC PWB
Check &
Remedy
Remedy
Replace the NIC.
Case 3
Cause
Defective PRT PWB
Check &
Remedy
Remedy
Replace the PRT PWB.
Main
code
code
Sub
code
Title
HDD trouble (PRT controller
detection)
detection)
F9
20
Display
Lamp/Message
Phenomenon Detail
The HDD (option) does not
operate normally in the
machine with the HDD.
operate normally in the
machine with the HDD.
Section
HDD
Case 1
Cause
Defective connection of the
HDD connector.
HDD connector.
Check &
Remedy
Remedy
Check the HDD connector
again.
again.
Case 2
Cause
Defective HDD
Check &
Remedy
Remedy
Replace the HDD.
Case 3
Cause
Defective PRT PWB
Check &
Remedy
Remedy
Replace the PRT PWB.
Main
code
code
Sub
code
Title
Thermistor open (HL1)
H2
00
Display
Lamp/Message
Phenomenon Detail
Thermistor open
Section
Fusing
Case 1
Cause
Disconnection of the fusing
section connector
section connector
Check &
Remedy
Remedy
Check the connector and
the harness between the
thermistor and the control
PWB.
the harness between the
thermistor and the control
PWB.
Case 2
Cause
The fusing unit is not
installed.
installed.
Check &
Remedy
Remedy
Install the fusing unit.
Case 3
Cause
Thermistor trouble, control
PWB trouble, AC power
supply trouble
PWB trouble, AC power
supply trouble
Check &
Remedy
Remedy
Replace the thermistor or
the control PWB. Check the
AC power supply.
the control PWB. Check the
AC power supply.
Main
code
code
Sub
code
Title
Thermistor open (HL2)
H2
01
Display
Lamp/Message
Phenomenon Detail
Thermistor open
Section
Fusing
Case 1
Cause
Disconnection of the fusing
section connector
section connector
Check &
Remedy
Remedy
Check the connector and
the harness between the
thermistor and the control
PWB.
the harness between the
thermistor and the control
PWB.
Case 2
Cause
The fusing unit is not
installed.
installed.
Check &
Remedy
Remedy
Install the fusing unit.
Case 3
Cause
Thermistor trouble, control
PWB trouble, AC power
supply trouble
PWB trouble, AC power
supply trouble
Check &
Remedy
Remedy
Replace the thermistor or
the control PWB. Check the
AC power supply.
the control PWB. Check the
AC power supply.
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