I’m a newbie. I have a eightball deluxe. Where should I look for the best parts / circuit boards?

2 problems . Once the ball drains, it won’t eject. And one of the pins on a plug-in is broke off on a circuit board.

Thanks Roamin and EvanDickson!!! I will invest in a multimeter and run with your advice. Thx to you both!! And will try to post a pic

Well apparently I have a much bigger problem. In addition to the drain ball ejector not working , the 8 ball bonus pocket won’t eject either, along with 3x 4x 5x pop-ups. The #9 pin on plug J1 looks like it may supposed to be missing. Geez I need lots of help!!!!!

It seams it all went wrong at once. Does that infer board problem?

Possible short/bad connect with a wire in the plug. How do I fix? Or is it possible to buy a new plug?

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Everything starting working briefly

Thx For the help

Can anyone recommend a person who can do service on the pinball if needed ? 41094 zip code