Got a problem with a Furuno radar scanner.Display did not come up.I found a short mosfet in the modulator board(SK777)After changing the transistor,display shows no BP(bearing pulse)and I cannot enter in TX mode.I am using my own cable,so this is not the problem.No schematics
apart from the information in the user manuel.
Antenna is turning ok,but there is no magnetron current either.
electronii 389

Boating - Furuno