Furuno GaAs FET Front End 4 Tone Daylight Display - when closing the DC breaker for the rada unit, the 10 amp fuse blows. Don't have a schematic. Don't know the model number. There are no data nor nameplates on the unit. The unit name is what is on the top margin of the front panel. Any help would be appreciated
GPS - Furuno - 1715 LCD Radar System GPS Receiver
Answers & Comments
Unplug the radar from it and turn on the display. If that does not blow the fuse, then your problem is either in the cable to the antenna or the antenna itself. Start there.