anytime you get a track short and don't turn off the voltage immediately you can blow the boards , especially the ps3 and 3/2 boards! there is one thing you can try first! run the engine I question one at a time in conventional and see if it will work without tiu in the line. you can also try a factory reset 1W and 5 five Bell with 1/2 second intervals if you get 2 whistle toots the engine reset and then can try it again with dcs ! if it's non responsive in conventional the boards are probably damaged and an asc tech can check what the cost would be approximately to repair!
Alan