Somebody with too big a soldering iron. I only have the Fliptronics II schematics, I think they are the same on the driver side but please make sure we're looking at the right transistor. Take the board out and trace from pin 4 please.
Ah thanksTaf doesn‘t have those boards, it was the first generation of Fliptronics and still had leaf switches on the flipper buttons.
If you decide this route, I have a good second hand one.Was thinking on getting a replament board is this a good idea seeing mine has had a lot of previous repairs and looks nasty