Appendix А. Dépannage - Yacht Devices NMEA 2000 Manuel Utilisateur

Appendix А. Dépannage
Situation
The Device built-in LED does
not signal after the NMEA
2000 network is powered on.
The Device built-in LED
flashes every two seconds,
but the Device
displayed in the list of
external NMEA
devices on the plotter
No sound
No external LED indication
Possible cause and correction
1. No power supply to the bus. Check if the bus power is supplied
(NMEA 2000 network requires a separate power connection and cannot
be powered by a plotter or another device connected to the network).
2. Loose connection in the power supply circuit. Treat the Device
connector with a spray for cleaning electrical contacts. Plug the Device
into another connector.
1. Loose connection in the data circuit. Treat the Device connector
with a spray for cleaning electrical contacts. Plug the Device into another
is not connector.
2. Problems in the NMEA 2000 network. The network segment
2000 is not connected to the plotter or there are missing terminators
in the network. Plug another device into the selected connector and make
sure it appears in the list of devices on the plotter.
1. Speaker is connected incorrectly. See section III. 3.
2. Wiring issue. Check the speaker wiring for a short or a bad contact.
3. Speaker issue. Check the speaker impedance with an ohmmeter.
4. Sound volume is set to 0. Check and modify the volume setting
with an external button (see Section IV) or the YD:VOLUME command
(see Section V).
1. External LED is connected incorrectly. See section III. 2. Pay
attention to the LED polarity.
2. Wiring issue. Check the LED wiring for a short or a bad contact.
3. LED issue. Check the LED with a tester.
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