Trying to get this game going. I don’t know what the next step is. Looking for suggestions.
Cue Ball Wizard
-Game powers up, all LED lights on each board continually flashes and dmd shows image.

-Game sound does not work nor does the game start. A low buzzing sound is heard through the speakers then gets louder. When start is pressed the dmd shows ball 1 but no ball comes out. I turned the volume up and down and the buzzing is the same.

I figured it was the grounds. Cut the plugs, tied them together and grounded to metal plate in side of transformer. Still have buzzing and no gameplay.

There is a 3rd prong on the plug and it seems to be connected inside the cab.

Any suggestions what to check for? Or perhaps I’m totally chasing the wrong thing? Thank you.

Pics show grounding that was done and power cord entering cabinet and grounded.

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Definitely coming from speakers. Mostly bottom cabinet speaker then after 20 seconds sounds like a machine gun buzzing through all speakers. It’s not the dmd.
No the cap in bottom of cabinet looks original.

Coil test works except 1 coil. When I do the test, the buzzing almost disappears when the coil fires and then get loud when it stops.