Hey everyone - I've been working through a refresh of a Simpsons cabinet for a bit. Everything is working well, so now I'm in the "details" stage electronically. Far from the "details" stage on the cabinet itself.
I've noticed that with my game, I can very clearly HEAR the attract mode lamp flashing patterns in the speakers. It's a light "buzz. buzz. buzz. buuUuuUuuUuuzzz" that PERFECTLY matches the GI lightshow pattern. When a game starts, sound is perfectly normal and the rhythmic buzzing disappears.
I've checked over all of my grounds and wiring on and around the sound board, everything looks ok. I haven't capped the sound board - didn't know if that was a normal thing to do on these game.
I wasn't sure if this was a common issue, or if I have something strange going on - has anyone encountered this? I tried to search the forum, but my term combination may have missed something.
For reference, here is my refresh thread: https://pinside.com/pinball/forum/topic/data-east-the-simpsons-refresh-and-repair