Question about Lowrance X135 Power Pro Sonar Without Transducer

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Lowrance x135 not functioning properly

I have a lowrance x135 mounted on the bow with a trolling motor mounted transducer. The problem is sometime it works fine then the screen shows lines up and down the depth will go from 10ft to 100+ ft in 10 foot of water. And the tempature always reads 32 no matter the water tempature. It came on the boat when I bought it. Don't know if it is a unit problem or a transducer problem (transducer for this is about $70.00 so I didn't want to buy it if the unit is bad).

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  • Anonymous Mar 18, 2014

    The m68c transducer is 200K Hz. The m68c power out is 800 W
    The Elite 4 transducer is 83 to 200K Hz. The Elite 4 power out is 2100 W
    Can I adjust the sensitivity down to compensate for output power difference or install the new transducer?

  • Anonymous Mar 22, 2014

    how to make it work when you turn it on

  • Anonymous Mar 22, 2014

    how to make it work when turned on



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Had the same issue with another brand. Turned out the transducer cable was picking up noise from other cables (power, trolling mtr. etc). Try moving the transducer cable away from any other cables. I put the cable in a 1/4 " plastic housing up to the point where it was above deck and it stopped all the strange stuff. Not sure about the temp issue??

Posted on Jul 21, 2009

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I'd most likely just replace the entire unit with a warranty.  As it surely is more than a few years old.

Posted on Mar 29, 2009


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