Unit installation

AR-C330 SELF DIAG MESSAGE AND TROUBLESHOOTING 10 - 58
U0 0 Case 1 Trouble
position/
cause
Bad connection of the
signal line between the
PCU MAIN PWB and the
operation control PWB
Remedy (Check) Check the signal
line between the PCU MAIN
PWB and the operation
control PWB.
(Repair) Repair or replace
the cable and the connector
between the PCU MAIN
PWB and the operation
control PWB. / Power
Source-ON
(After-work)
Case 2 Trouble
position/
cause
PCU MAIN PWB trouble
Remedy (Check)
(Repair) Replace the PCU
MAIN PWB. / Power
Source-ON
(After-work) Re-enter setup
values and adjustment
values. (Install the
EEPROM of the defective
PCU MAIN PWB to a new
PCU MAIN PWB.)
Case 3 Trouble
position/
cause
Operation control PWB
trouble
Remedy (Check)
(Repair) Operation control
PWB replacement / Power
Source-ON
(After-work)
Main
code
Sub
code
Title
PCU MAIN PWB - PCU SUB PWB
communication trouble (PCU
detection)
U0 80 Phenomena Display Lamp
Message
Detail Communication (protocol,
data) error
Section PCU SUB PWB / PCU
MAIN PWB
Operation
mode
All modes
Note
Case 1 Trouble
position/
cause
Bad connection of the
signal line between the
PCUMAIN PWB and the
PCU SUB PWB.
Remedy (Check) Check connection
of the signal line between
the PCU MAIN PWB and
the PCU SUB PWB.
(Repair) Repair or replace
the cable and the connector
of the PCU MAIN PWB and
the PCU SUB PWB. /
Power Source-ON
(After-work)
Main
code
Sub
code
Title
Operation control PWB - PCU MAIN
PWB communication trouble (OPE/
PCU detection)
U0 80 Case 2 Trouble
position/
cause
PCU MAIN PWB trouble
Remedy (Check)
(Repair) Replace the PCU
MAIN PWB. / Power
Source-ON
(After-work) Re-enter setup
values and adjustment
values. (Install the
EEPROM of the defective
PCU MAIN PWB to a new
PCU MAIN PWB.)
Case 3 Trouble
position/
cause
PCU SUB PWB trouble
Remedy (Check)
(Repair) PCU SUB PWB
replacement / Power
Source-ON
(After-work)
Main
code
Sub
code
Title
EEPROM read/write error (PCU
MAIN PWB)
U2 0 Phenomena Display Lamp
Message
Detail EEPROM read/write error
Section PCU PWB
Operation
mode
Warm-up
Note
Case 1 Trouble
position/
cause
EEPROM trouble
Remedy (Check)
(Repair) Replace the
EEPROM. / SIM 16
(After-work)
Case 2 Trouble
position/
cause
PCU MAIN PWB trouble
Remedy (Check)
(Repair) Replace the PCU
MAIN PWB. / SIM 16
(After-work) Re-enter the
set values and the
adjustment values.
Main
code
Sub
code
Title
Counter data (EEPROM) check sum
error (PCU MAIN PWB)
U2 11 Phenomena Display Lamp
Message
Detail Counter data area check
sum error
Section PCU PWB
Operation
mode
All modes
Note
Main
code
Sub
code
Title
PCU MAIN PWB - PCU SUB PWB
communication trouble (PCU
detection)