Bone Busters Inc.
Gottlieb, 1989You're currently viewing posts by Pinsider chrishibler.
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My first thought is an intermittent path to ground.
You can test the theory by reseating connectors on the bottom of the driver board, and in the cabinet as outlined here:
https://www.pinwiki.com/wiki/index.php?title=Gottlieb_System_80#Ground_Improvements_for_System_80B_at_the_Transformer_Panel_-_.22Arena.22_to_.22Bone_Busters.22
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Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info
My pleasure @tacolover.
We shall have some tacos together someday! You are buying. 
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Chris Hibler - CARGPB #31
Http://chrishiblerpinball.com/contact
http://www.PinWiki.com/ - The new place for pinball repair info
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Chesterfield, MO