JRC JMA-5212-4, Service Manual

Page: 133 / 172

6-17
PROC(INT)
Description
This message indicates that the processing reference pulse signal in the radar processing circuit
is faulty.
If TXRX(Trigger), TXRX(Data), or PROC(Trigger) is displayed, handle the error first.
A scanner equipment cable may be broken, the power terminal board circuit in the display system
may be faulty, or the radar processing circuit may be faulty.
Location of cause
o
Procedure
Power terminal board
circuit CBD-1702A in
the display system
x
Check the CBD-1702A cable connection. J5002, J5003
x
Replace the CBD-1702A.
CDC-1350 in the
display system
x
Check the insertion of J4402 and J4003 on the radar processing
circuit CDC-1350.
x
Replace the CDC-1350.
Indicator(Fan)
Description
If the NCD-4380(NCM-866) is used, a jumper plug is inserted instead of providing a cooling fan.
This message indicates that the jumper plug is faulty.
㩷
If the NCD-4390 is used, the message indicates that the cooling fan in the display system is
faulty.
The fan in the display system may be faulty or the jumper plug may be broken, or the input-output
section may be faulty.
Location of cause
o
Procedure
Fan or cable in the
display system
x
Replace the fan in the display system.
x
Replace the jumper cable in the display system.
Power terminal board
circuit CBD-1702A in
the display system
If the NCD-4380(NCM-866) is used:
x
Check the jumper cable connection of the CBD-1702A. J5006
x
Replace the CBD-1702A.
If the NCD-4390 is used:
x
Check the cooling fan on the CBD-1702A.
x
Replace the CBD-1702A.