Recently pick this game up and the drop targets were not working everything looked clean but put a new coil in the drop targets that didn't work put a new transistor and the power board that didn't work now I'm trying to find out what drives that transistor since a friend of mine told me you could touch the top of the transistor and to the ground and it would fire in test and it did. I can't figure out what the predriver is for that transistor Q 3 on the power board any help would be appreciated. Thanks, Matt