I have a williams whirlwind pinball machine and need some advise on how to repair the bottom upper jet . The solenoid was burnt out so I replaced it and it still will not work . This is the only issue I have . When the ball hits the bumper it will score . I have buzzed all the wiring to make sure that i don't have a break in the wire . This test came back Ok . I have good wiring all the way to the interconnect board throught to the cpu . not really sure what to do now .