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Section 22 Failures and After-Sale Services
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Symptom
Cause
Action
AIS information is not
displayed.
The communication is not set
correctly.
Set the communication correctly.
The power supply for the AIS
equipment is not turned on.
Turn on the power supply for the AIS
equipment.
The AIS equipment does not perform
positioning.
Check the state of the AIS
equipment.
The connection with the AIS
equipment is abnormal.
Check the connection with the AIS
equipment.
When AIS equipment is connected to
the serial LAN interface circuit, check
if the LED of the corresponding port
is lit at data reception.
The power supply for the serial-LAN
interface circuit (CMH-2370) is not
turned on.
(Case where the AIS equipment is
connected to the serial-LAN interface
circuit)
Turn on the power supply for the
serial-LAN interface circuit.
The serial-LAN interface circuit
(CMH-2370) is faulty.
(Case where the AIS equipment is
connected to the serial-LAN interface
circuit)
Make a request to the distributor for
repair.
The internal wiring is faulty.
Make a request to the distributor for
repair.
The central control unit
(NDC-1590/A) is faulty.
Make a request to the distributor for
repair.
The azimuth of the Gyro
compass is not
displayed.
Alternatively, the azimuth
rotation direction is not
displayed correctly.
The communication is not set
correctly.
Set the communication correctly.
The power supply for the Gyro
compass equipment is not turned on.
Turn on the power supply for the
Gyro compass equipment.
The connection with the Gyro
compass equipment is abnormal.
Check the connection with the Gyro
compass equipment.
When gyro compass equipment is
connected to the serial LAN interface
circuit or gyro interface circuit, check
if the corresponding LED is lit at
signal reception.
The power supply for the serial-LAN
interface circuit (CMH-2370) is not
turned on.
(Case where the Gyro compass
equipment is connected to the
serial-LAN interface circuit)
Turn on the power supply for the
serial-LAN interface circuit.
The serial-LAN interface circuit
(CMH-2370) is faulty.
(Case where the Gyro compass
equipment is connected to the
serial-LAN interface circuit)
Make a request to the distributor for
repair.