Anyone repair inverters?

VISUAL INSPECTION! You could have one shorted turn. The App Note explains inverter operation and theory well.
Don't apply a load until you look at switching signals with a scope.
Visual inspection showed no sign of even an arc or a blown component. Cant do jack with no output stage MOSFETs installed. Will wait until I get the new ones installed. Im not an ET so a lot of that theory stuff was over my head.