Question about Raymarine C80 GPS Receiver

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Fish finder not receiving data screen says no data source available Checked connections in back of unit & tried cleaning transducer

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  • Anonymous Mar 25, 2014

    the unit itself

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  • 16 Answers

You have either the DSM250 or DSM300 digital depth sounder module installed. The C80 is not seeing it.

There is an LED status light on the DSM. For starters, it should be lit either red, yellow or green to confirm it is actually powered on. We are hoping for a green light.

Double-check the cable between DSM and C80 for tightness. Also double-check the DSM's power cable for tightness.

The DSM's are sensitive to voltage level onboard. Make sure the DSM's connections to the circuit breaker panel or battery are tight and clean. Double check with a multimeter the there is 12V DC available to the DSM.

Let me know what you find.

Posted on Dec 28, 2007

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