Question about Lowrance GPS Devices

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I have a Lowrance LCX111HD and added a contour chip. How do you set unit up to download chip? I also received a fishing spot hot chip and cannot download chip data. Thanks

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  • 16 Answers

SOURCE: fish finder

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

hydetech
  • 113 Answers

SOURCE: False fish readings

False fish readings are commonly caused by electrical interference such as alternator noise, and by air bubbles flowing across transducer.

For starters make sure your fishfinder is on an independent circuit and not on one powered by your ignition switch. In other words, you should be able to turn your fishfinder on, even though the engine is turned off. Ideally the fishfinder should be wired directly to the battery with an in line fuse.

Try running the boat at a speed slightly higher than trolling speed, then kill the engine, as the boat slows down to trolling speed do you still see false echos? If yes then the problem probably lies with how the transducer is mounted, or where it is located on the hull.

If you don't see the false echos when the engine is off, it may be necessary to reroute the transducer cable to keep it away from the boat's ignition wires. You can get transducer extension cables if necessary. Also there are filters that you can buy that suppress alternator noise buy attaching between the battery and the engine.

Another common cause of false echos from electrical interference is a transducer cable that has been cut and spliced.

I hope this information helps. Please reply if you have any questions about my response.

Posted on Feb 26, 2008

  • 1 Answer

SOURCE: Troubleshooting my Lowrance LC X - 15MT Unit

lowrance mark 5x will not come on

Posted on Aug 22, 2011

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