Sharp AR-BC320, Service Manual, Page: 265 / 344

AR-BC320 TROUBLESHOOTING 11 - 18
Main
code Sub
code
Title
Improper combination of the TEL/
LIU PWB and the FAX soft switch.
F6 21 Display Lamp/Message
Phenomenon Detail Improper combination of
the TEL/LIU PWB and the
FAX PWB information (soft
switch)
Section FAX
Case 1 Cause The destination of the
installed TEL/LIU PWB
differs.
Check &
Remedy Check the destination of
the TEL/LIU PWB.
Case 2 Cause The FAX PWB information
(soft switch) differs.
Check &
Remedy Check the FAX PWB
information (soft switch).
Case 3 Cause TEL/LIU PWB abnormality
Check &
Remedy Replace the TEL/LIU
PWB.
Main
code Sub
code
Title
The FAX-BOX PWB is not one for
the AR-BC320. (FAX detection)
F6 97 Display Lamp/Message
Phenomenon Detail The Modem controller of
the FAX-BOX is not one for
the AR-BC320.
Section FAX
Case 1 Cause The FAX-BOX Modem
controller PWB information
(hard detection) is not for
the AR-BC320. (A Modem
controller PWB for the AR-
FX5/FX6 or the AR-FX8 is
used.)
Check &
Remedy 1. Check the FAX-BOX
MODEM controller.
2. Replace the MODEM
controller PWB with one
for the AR-BC320.
Main
code Sub
code
Title
Improper combination of the FAX-
BOX destination data and the
main unit destination data
F6 98 Display Lamp/Message
Phenomenon Detail Improper combination of
the FAX-BOX destination
data and the main unit
destination data
Section FAX
Case 1 Cause Improper combination of
the destination written in
the EEPROM on the FAX-
BOX PWB and the main
unit destination data (set
with SIM 26-6).
Check &
Remedy 1. Check the destination of
the FAX-BOX.
2. Check the destination of
the main unit with SIM
26-6.
3. Use a proper
combination of the main
unit and the FAX-BOX.
Main
code Sub
code
Title
ICU-PRT communication trouble
(ICU detection)
F9 00 Display Lamp/Message
Phenomenon Detail Communication
establishment error,
framing, parity, protocol
error
Section —
Case 1 Cause Defective connection of the
ICU/PRT PWB
communication connector,
defective harness between
the ICU PWB and the PRT
PWB, defective ICU PWB/
PRT PWB
Check &
Remedy Check connection and the
harness between the ICU
PWB and the MFP PWB.
Check the machine earth.
Replace the ICU or the
PRT PWB.
Main
code Sub
code
Title PRT DRAM trouble
F9 01 Display Lamp/Message
Phenomenon Detail DRAM in the PRT PWB
cannot be accessed.
Section —
Case 1 Cause Defective DRAM, defective
installation of the DRAM
Check &
Remedy Replace the DRAM. Check
connection of the DRAM.
Main
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, defective
NIC PWB, defective PRT
PWB
Check &
Remedy Check the NIC connector
again. Replace the HDD.
Replace the PRT PWB.
Main
code Sub
code
Title
HDD trouble (PRT controller
detection)
F9 20 Display Lamp/Message
Phenomenon Detail The HDD (option) does not
operate normally in the
machine with the HDD.
Section —
Case 1 Cause Defective connection of the
HDD connector, defective
HDD, defective PRT PWB
Check &
Remedy Check the HDD again.
Replace the HDD. Replace
the PRT PWB.