Read Sharp AR-C260 (serv.man14) Service Manual online
AR-C260/C260M TROUBLESHOOTING 11 - 22
Main
code
code
Sub
code
Title
ICU-OPE communication trouble
(ICU/OPE detection)
(ICU/OPE detection)
U0
00
Display
Lamp/Message
Phenomenon
Detail
Communication
establishment error,
framing/parity/protocol
error
establishment error,
framing/parity/protocol
error
Section
—
Case 1
Cause
Disconnection of the
operation panel
communication connector
of the ICU/MFP PWB,
harness trouble between
the ICU PWB and the MFP
PWB.
operation panel
communication connector
of the ICU/MFP PWB,
harness trouble between
the ICU PWB and the MFP
PWB.
Check &
Remedy
Remedy
Check the connector and
the harness between the
ICU PWB and the MFP
PWB.
the harness between the
ICU PWB and the MFP
PWB.
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
RTC read trouble
U1
02
Display
Lamp/Message
Phenomenon
Detail
Abnormal value is read
from the RTC on the ICU
PWB.
from the RTC on the ICU
PWB.
Section
—
Case 1
Cause
RTC circuit abnormality
Check &
Remedy
Remedy
Set the time again with the
key operation, and check
that time advances
properly.
Check the RTC circuit.
key operation, and check
that time advances
properly.
Check the RTC circuit.
Main
code
code
Sub
code
Title
EEPROM read/write error (ICU
detection)
detection)
U2
00
Display
Lamp/Message
Phenomenon
Detail
EEPROM version error
EEPROM write error
EEPROM write error
Section
—
Case 1
Cause
EEPROM trouble.
EEPROM is not initialized.
EEPROM is not initialized.
Check &
Remedy
Remedy
1. Check that the
EEPROM is properly
set.
set.
2. Use SIM 16 to cancel
the error.
Case 2
Cause
ICU PWB EEPROM
access circuit trouble
access circuit trouble
Check &
Remedy
Remedy
1. To prevent against
deletion of the counter
data and the
adjustment data,
record them with the
simulation. (When a
printer option is
installed, use SIM 22-1
to record the counter
data and the
adjustment data.)
data and the
adjustment data,
record them with the
simulation. (When a
printer option is
installed, use SIM 22-1
to record the counter
data and the
adjustment data.)
2. Replace the ICU PWB.
3. Use SIM 16 to cancel
3. Use SIM 16 to cancel
the error.
Main
code
code
Sub
code
Title
EEPROM check sum error (ICU
detection)
detection)
U2
11
Display
Lamp/Message
Phenomenon
Detail
EEPROM (ICU) check
sum error
sum error
Section
—
Case 1
Cause
EEPROM trouble
Check &
Remedy
Remedy
1. Check that the
EEPROM is properly
set.
set.
2. Use SIM 16 to cancel
the error.
Case 2
Cause
Control circuit freeze by
noises.
ICU PWB EEPROM
access circuit trouble.
noises.
ICU PWB EEPROM
access circuit trouble.
Check &
Remedy
Remedy
1. To prevent against
deletion of the counter
data and the
adjustment data,
record them with the
simulation. (When a
printer option is
installed, use SIM 22-1
to record the counter
data and the
adjustment data.)
data and the
adjustment data,
record them with the
simulation. (When a
printer option is
installed, use SIM 22-1
to record the counter
data and the
adjustment data.)
2. Replace the ICU PWB.
3. Use SIM 16 to cancel
3. Use SIM 16 to cancel
the error.
Main
code
code
Sub
code
Title
Production No. data discrepancy
U2
30
Display
Lamp/Message
Phenomenon
Detail
The production No.
recorded in the PCU
differs from that recorded
in the ICU.
recorded in the PCU
differs from that recorded
in the ICU.
Section
—
Case 1
Cause
EEPROM is not
exchanged when replacing
the PCU/ICU PWB.
exchanged when replacing
the PCU/ICU PWB.
Check &
Remedy
Remedy
Check that the EEPROM
is properly installed. When
replacement, check that
the EEPROM before
replacement is inserted to
the board after
replacement.
is properly installed. When
replacement, check that
the EEPROM before
replacement is inserted to
the board after
replacement.
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