Unit installation

AR-C330 SELF DIAG MESSAGE AND TROUBLESHOOTING 10 - 16
Main
code
Sub
code
Title
ICU PWB FLASH ROM trouble
E7 30 Phenomena Display Lamp
Message
Detail After turning ON the power,
consistency of the ICU
MAIN PWB and the ROM
(FLASH ROM) is checked
and no consistency is
found.
Section ICU MAIN PWB
Operation
mode
Warm-up / Initialize
Note
Case 1 Trouble
position/
cause
ICU MAIN PWB trouble /
ICU MAIN PWB ROM
(FLASH ROM) trouble
Remedy (Check)
(Repair) Replace the ICU
MAIN PWB. / Replace the
ICU MAIN PWB ROM
(FLASH ROM). / Power
Source-ON
(After-work) Adjust ADJM9/
M10/M12/M13/M14/M15/
M17. / Re-enter setup
values and adjustment
values. (Install the
EEPROM of the defective
ICU MAIN PWB to a new
ICU MAIN PWB.)
Main
code
Sub
code
Title
ICU MAIN PWB - PCU MAIN PWB
communication trouble (PCU side
detection)
E7 90 Phenomena Display Lamp
Message
Detail Caused by line noise on the
data line (Hardware trouble)
Section ICU MAIN PWB / PCU
MAIN PWB
Operation
mode
All modes
Note
Case 1 Trouble
position/
cause
PCU MAIN PWB / ICU
MAIN PWB signal line
connection trouble
Remedy (Check) Check connection
of the signal line between
the PCU MAIN PWB and
the ICU MAIN PWB.
(Repair) Repair or replace
the cable and the connector
between the PCU MAIN
PWB and the ICU MAIN
PWB. / Power Source-ON
(After-work)
E7 90 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
ICU MAIN PWB trouble
Remedy (Check)
(Repair) ICU MAIN PWB /
Power Source-ON
(After-work) Adjust ADJM9/
M10/M12/M13/M14/M15/
M17. / Re-enter setup
values and adjustment
values. (Install the
EEPROM of the defective
ICU MAIN PWB to a new
ICU MAIN PWB.)
Main
code
Sub
code
Title
ICU MAIN PWB - PCU MAIN PWB
communication trouble (PCU side
detection)
E8 0 Phenomena Display Lamp
Message
Detail No response from ICU PWB
for PCU PWB command
(Caused by Hardware
trouble)
Section ICU MAIN PWB / PCU
MAIN PWB
Operation
mode
All modes
Note
Case 1 Trouble
position/
cause
PCU MAIN PWB / ICU
MAIN PWB signal line
connection trouble
Remedy (Check) Check connection
of the signal line between
the PCU MAIN PWB and
the ICU MAIN PWB.
(Repair) Repair or replace
the cable and the connector
between the PCU MAIN
PWB and the ICU MAIN
PWB. / Power Source-ON
(After-work)
Main
code
Sub
code
Title
ICU MAIN PWB - PCU MAIN PWB
communication trouble (PCU side
detection)