My uncle has owned an Earthshaker machine for a while now. This machine is heavily played, unshopped, and border line abused. The problem is that when you shoot the right ramp to lock the first ball the machine does not send another ball into the shooter lane, but instead the machine sits there with all the lights and music off in what I like to call "stupid mode" until the lights and music finally turn back on the machine starts to look for the ball by first popping the ball lock trough then the ball is sent back into play with no lock. This leads to you never being able to have multiball. I am quite new to working on machines and know very minimal things maybe their is something real simple that I am just missing.