SOURCE: a furuno 1715 lcd radar was wired to battery backwords
internal damage to the display, fixable by Furuno, and probably economically feasible (guess $250 with round trip to Furuno)
SOURCE: Our Radar Furuno 1715-24NM On. ( Power in Oke )
If you have no radar targets, go to longest range 24 miles, gain full, rain and sea minimum, do you have noise, if so, need magnetron, if not, need cable from display to dome.
SOURCE: Furuno 1715 gives
Heading pulse is a reed switch sensor built inside the dome. upon each rotation of the array the reed switch is activated. Do a visual inspection of your array (inside) to make sure it is spinning (verify from a distance). Don't get eye level with the rotating array it can cause great harm to your eyes. Normally I have seen the belt slip off and also the lanyard attachment get caught in the array. Check those two things as well.
Testimonial: "It was a failed reed switch. Replaced and it works well. Thanks."
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