I recently purchased a DM in mostly working condition. One of the switch errors I'm getting is for the center ramp (switch #53). This is the wide metal ramp in the center (under all the wire and plastic ramps) which jumps the ball up a half inch or so into the back lanes. It has 5 red lights underneath visible through slots in the metal ramp. I see the switch on the right side, but there's no metal swinging gate across the ramp to activate the switch - I assume this is missing? Can someone who owns a DM confirm how the switch is activated? I'm not even sure how to find a part number? Maybe post a picture?
Thanks!