So recently, sometimes my knocker goes off for a free game but then seems to stay energized, makes a terrible electrical chattering noise and gets really hot. When I turn the game off and on again it starts right back up making the same noise. It stops once I push the start button. Then it plays a few games fine with the knocker firing as it should but then randomly starts doing the same thing again after the knocker fires a few times.
Where do I start with troubleshooting this?
Here’s a link to the noise it’s making.
Thanks.