I am buying a 1989 Crestliner boat with a Bottomline Depth Finder, model 210f, I think. When I test drove the boat, the depth finder would boot up and them shut off. It would come up to the screen that shows an American Flag right before shutting down. It would even do the same thing sitting still on the trailer, so I don't think it is a loose wire problem.<br />Any clues as what is wrong?
