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Friday 26 January 2018 at 04:11
While I was reading the Service Bulletins I saw one about the switch that is in the bottom of the center scoop. I guess when the ball enters, it slams down on the floor of the scoop. The switch is mounted under that area and the vibration will eventually break the diode off the switch. I decided to ...
Source: http://pinside.com/pinball/forum/topic/jurassic-park-restoration/page/10#post-4195948