Hi guy's has anyone even experienced a problem with their stern where the ramp diverter is not diverting? grand prix has 2 ramps both lead to the wire forms that run down the table, the left goes into the wagon then fires to the right and then runs down the table to the flipper, the right ramp however isn't registering the ball passing under the spinner and thus not diverting the ball to come down the left wire form. are there any things to check out before replacing the ramp switch / relay coil and armature assembly.?? many thanks the relay coli is located under the black plastic "race control" assembly half way dow the right of the play filed. Many thanks James