Very new to pinball collecting, the first game I picked up was Bone Busters @ pinfest in Allentown 2019, never heard of it before but fell into my price range, gave it a shot, and fell in love with it. I am im having trouble with one of the ball locks not kicking the ball out. It is the ball lock in the lower left corner of the table. I am unable to find schematics and am getting very frustrated. It works for a little while then seems to be inoperable for days, I have checked the fuses but all are good. I did a wire trace and seem to have no questionable sections. Any help would be much appreciated.