I am trying to fix my first EM machine a Williams Grand Prix and it is giving me a lot of trouble. The two main problems I am encountering are: the game will not advance to ball 2 or player 2 when the ball drains. I have cleaned all of the stepper units. The second problem I'm having is the roll over switch above the left spinner sets off the tilt. Any help with these problems will be greatly appreciated. Ive been racking my brain trying to figure out what is going on in this machine. Thanks

The bonus counts down but is not scoring points.