Main Power Switch Abnormality Detection; Pf 00 Ric Copy Inhibit Signal Reception Case; Rtc Read Trouble Case - Sharp AR-BC260 Service Manual

Main Sub Main power switch abnormality
Title
code code detection
L8 04 Display Lamp/Message
Phenomenon Detail
Section
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Case 3 Cause
Check &
Remedy
Main Sub
Title RIC copy inhibit signal reception
code code
PF 00 Display Lamp/Message
Phenomenon Detail
Section
Case 1 Cause
Check &
Remedy
Main Sub ICU-OPE communication trouble
Title
code code (ICU/OPE detection)
U0 00 Display Lamp/Message
Phenomenon Detail
Section
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Case 3 Cause
Check &
Remedy
Though the PCU program is
operating (the power is
supplied), the main power
switch OFF is detected.
—
Main power switch trouble
Replace the main power
switch.
Power supply unit trouble
Replace the power supply
unit.
Harness trouble
Check connection of the
harness and the connector.
The copy inhibit signal from
RIC (host) is received.
—
Depends on a judgment by
the host.
Make notification to the
host. Use SIM 27-1 to
ignore.
Communication
establishment error,
framing/parity/protocol error.
ROM version phase shift.
—
Disconnection of the
operation panel
communication connector
of the ICU/MFP PWB,
harness trouble between
the ICU PWB and the MFP
PWB.
Check the connector and
the harness between the
ICU PWB and the MFP
PWB.
ICU/MFP PWB trouble
Check grounding of the
machine.
Replace the ICU PWB or
the MFP PWB.
When the OPE-ROM
without security functions is
installed for the ICU-ROM
with security kit functions.
Check the ROM version,
and replace it if necessary.
AR-BC260 TROUBLESHOOTING 11 - 24
Main Sub
Title FAX battery abnormality
code code
U1 01 Display Lamp/Message
Phenomenon Detail
Section FAX
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Main Sub
Title RTC read trouble
code code
U1 02 Display Lamp/Message
Phenomenon Detail
Section
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Main Sub EEPROM read/write error (ICU
Title
code code detection)
U2 00 Display Lamp/Message
Phenomenon Detail
Section
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
FAX backup SRAM battery
voltage fall
Battery life
Check to insure that the
battery voltage is about
2.5V or above.
Battery circuit abnormality.
Check the battery circuit.
Abnormal value is read from
the RTC on the ICU PWB.
—
RTC circuit abnormality
Set the time again with the
key operation, and check
that time advances
properly.
Check the RTC circuit.
Battery voltage fall. Battery
circuit abnormality.
Check to insure that the
battery voltage is about
2.5V or above. Check the
battery circuit.
EEPROM version error
EEPROM write error
—
EEPROM trouble.
EEPROM is not initialized.
1. Check that the EEPROM
is properly set.
2. Use SIM 16 to cancel the
error.
ICU PWB EEPROM access
circuit trouble
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.