User manual - JG Technologies

25.3 Radar troubleshooting
Problems with the radar and their possible causes and solutions are described here.
Problem Possible causes Possible solutions
No Data or No scanner message
Radar will not initialize (Voltage control
module (VCM) stuck in “sleep mode”
The bearing of a target on the radar
screen is incorrect.
Radar scanner power supply
SeaTalk hs / RayNet network problem
Software mismatch between equipment
may prevent communication.
Switch at scanner pedestal in OFF
position
Intermittent or poor power connection
The radar bearing alignment requires
correcting.
Check that the scanner power supply cable is sound and that all connections
are tight and free from corrosion.
Check relevant fuses and breakers.
Check power source is of the correct voltage and sufficient current (using
voltage booster if appropriate).
Check that the Scanner is correctly connected to a Raymarine network
switch or SeaTalk hs crossover coupler (as applicable).
Check the status of the Raymarine network switch.
Check that SeaTalk hs / RayNet cables are free from damage.
Contact Raymarine technical support.
Ensure scanner pedestal switch is in ON position.
Check power connection at VCM. (Voltage at input = 12 / 24 V, Voltage
at output = 40 V)
Check and adjust radar bearing alignment.
242 e7 / e7D / e95 / e97 / e125 / e127 / c95 / c97 / c125 / c127