Originally Posted by
caveman
I have a humminbird xp200 on my tracker pro 185. The problem is the depth finder works if nothing else is turned on, or the big motor is not running. The depth finder goes to 0 depth till everything is off. I ran a new ground wire from the battery and even tried the ground off the side of the boat and the same thing happened. The hot wire is plugged into the fuse box, I have moved the hot wire around and it does the same thing. It has to be in the wiring because I plugged in another unit and it did the same thing. Anyone know what I should do to fix this.
Problem could be with the transducer cable routing. Try moving it around some. They are susceptible to RFI. If your xducer is on trolling motor, and cable is laced to TM power, this will cause some troubs. Just a thought. If you were close by, I could hook it to my O'scope and find the troub.
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