AR-BC260 TROUBLESHOOTING 11 - 25
Main
code
Sub
code
Title
EEPROM check sum error (ICU
detection)
U2
11
Display
Lamp/Message
Phenomenon Detail
EEPROM (ICU) check sum
error
Section
—
Case 1
Cause
EEPROM trouble
Check &
Remedy
1. Check that the EEPROM
is properly set.
2. Use SIM 16 to cancel the
error.
Case 2
Cause
Control circuit freeze by
noises.
ICU PWB EEPROM access
circuit trouble.
Check &
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.)
2. Replace the ICU PWB.
3. Use SIM 16 to cancel the
error.
Main
code
Sub
code
Title
FAX backup SRAM memory check
sum error
U2
22
Display
Lamp/Message
Phenomenon Detail
FAX backup SRAM
memory check sum error
Section
FAX
Case 1
Cause
SRAM trouble
Check &
Remedy
Initialize the one-touch dial
and the FAX soft switch
registered in the SRAM.
Cancel the trouble with SIM
16.
Case 2
Cause
Control circuit freeze by
noises.
Access circuit trouble.
Check &
Remedy
Replace the FAX PWB. Use
SIM 16 to cancel the error.
Main
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.
Section
—
Case 1
Cause
EEPROM is not exchanged
when replacing the PCU/
ICU PWB.
Check &
Remedy
Check that the EEPROM is
properly installed. When
replacement, check that the
EEPROM before
replacement is inserted to
the board after
replacement.
Main
code
Sub
code
Title
EEPROM read/write error (SCN)
U2
80
Display
Lamp/Message
Phenomenon Detail
EEPROM version error
EEPROM write error
Section
—
Case 1
Cause
EEPROM trouble, Insertion
of EEPROM which is not
initialized or defective.
Check &
Remedy
1. Check that the EEPROM
is properly inserted.
2. Use SIM 16 to cancel the
error.
Case 2
Cause
SCN PWB EEPROM
access circuit trouble
Check &
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.)
2. Replace the SCN PWB.
3. Use SIM 16 to cancel the
error.
Main
code
Sub
code
Title
Adjustment value check sum error
(SCN)
U2
81
Display
Lamp/Message
Phenomenon Detail
EEPROM (SCN) check sum
error
Section
—
Case 1
Cause
EEPROM trouble
Check &
Remedy
1. Check that the EEPROM
is properly inserted.
2. Use SIM 16 to cancel the
error.
Case 2
Cause
SCN PWB EEPROM
access circuit trouble
Check &
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.)
2. Replace the SCN PWB.
3. Use SIM 16 to cancel the
error.