So I don't know a lot about pins. I just started working on a 1980 gottlieb the amazing Spider-Man! Fixed all the easy stuff game was playing great! I moved it a foot and raised the legs and now my left flippers are humming and staying energised even in the down position. I can feel the current through both flipper relays. When I move them up manually by pressing the plunger they magnetically lock into place. When I press the flipper button in the down position they go up stay up some play field lights go off and the game shuts down (shorts out) yet flippers stay up and energised until I kill power. All leaf contacts open and close as should. When the play field is up it hums less the farther down I lower it the louder it gets. Is there something I'm missing or could there be a problem with a board? Just changed diodes.