HI, Ihave a lowrance X50 DS it is 1yr old and did not give me any trouble. Yesterday while installing a hourmeter I was checking fuses, I inadvertantly unhooked the fish finder, and of course had to restart it. But it will not turn on now I checked fuse at block, unplugged cable and checked pin at end all are ok with juice, but head will not go on. Anybody have an idea of problem? Jack