Reply to "JLC GG1 - Shorting out Help"

Joe FermaniOGR Forum Member

So I replaced the b!own mosfet and reinstalled the board. Tested the engine. Forward motion good. Sounds, couplers all work. Tried reverse. I saw a quick spark by the bridge rectifier which is tucked behind the figures. Then the same mosfet blew again. Magic smoke released. Took the board back out and the plastic insulator for the blown mosfet was melted. I also noticed the stand alone bridge rectifier that sparked was warm.

Can something be taking out the driver board or is the driver board board just bad?

8/23/1910:46 PM

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