JRC JMR-5410-4X - Page 500

Section 16 Failures and After-Sale Services 16-14
Symptom Cause Action
Water depth values are not
displayed.
The communication is not set
correctly.
Set the communication correctly.
The power supply for the echo
sounder is not turned on.
Turn on the power supply for the
echo sounder.
The connection with the echo
sounder is abnormal.
Check the connection with the echo
sounder.
When an echo sounder is
connected to the terminal board
circuit (CQD-2322), check if the
LED of the corresponding port is lit
at data reception.
The internal wiring is faulty.
Make a request to the distributor for
repair.
The processing unit (NDC-1678) is
faulty.
Make a request to the distributor for
repair.
Sensor signals are not
displayed.
The communication is not set
correctly.
Set the communication correctly.
The power supply for the sensor
equipment is not turned on.
Turn on the power supply for the
sensor equipment.
The connection with the sensor
equipment is faulty.
Check the connection with the
sensor equipment.
Check if the LED of the
corresponding port of the terminal
board circuit (CQD-2322) is lit at
data reception.
When a sensor is connected to
junction box NQE-1143, the power
is not supplied to the serial LAN
interface (CMH-2370) inside of
junction box NQE-1143.
Turn on the power supply for the
serial-LAN interface circuit.
The internal wiring is faulty.
Make a request to the distributor for
repair.
The processing unit (NDC-1678) is
faulty.
Make a request to the distributor for
repair.
The serial LAN interface circuit
(CMH-2370) inside of junction box
NQE-1143 is faulty.
Make a request to the distributor for
repair.