I noticed that my sonar mph indicator is out. I can get the wheel to spin freely - - am I overlooking any quick fixes? I get mph on GPS’s, too, but I like to have everything working. ALSO: where can I get good service on a color Furuno sonar? I think I have damaged the screen by trying to clean it - - now I have some “ghost” gray schools of fish with me always. thanks.
start shopping for a new one, when they get older, they generally stop supporting them or offering service for them, except for some of the commercial units