JRC ECDIS Instruction Manual page 120

Symptom
The azimuth of the Gyro
compass is not
displayed.
Alternatively, the azimuth
rotation direction is not
displayed correctly.
Section 20 Failures and After-Sale Services
Cause
The communication is not set
correctly.
The power supply for the Gyro
compass equipment is not turned on.
The connection with the Gyro
compass equipment is abnormal.
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)
The serial-LAN interface circuit
(CMH-2370) is faulty.
(Case where the Gyro compass
equipment is connected to the
serial-LAN interface circuit)
The Gyro interface circuit (CMJ-554)
is not set correctly
(Case where the Gyro compass
equipment is connected to the Gyro
interface circuit)
The fuse of the gyro interface circuit
(CMJ-554) has blown.
The Gyro interface circuit (CMJ-554)
is faulty.
(Case where the Gyro compass
equipment is connected to the Gyro
interface circuit)
The internal wiring is faulty.
The central control unit (NDC-1590)
is faulty.
Set the communication correctly.
Turn on the power supply for the
Gyro compass equipment.
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.
Turn on the power supply for the
serial-LAN interface circuit.
Make a request to the distributor for
repair.
Set the Gyro interface circuit
correctly according to the Gyro
compass equipment.
Replace the fuse of the gyro interface
circuit.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
20-8
Action