My Galaga has had a noticeable annoying high-pitched whine coming from the speaker since the day I got it. I've recapped both the 90414 power supply board and the game board, and the whine is still there. I unplugged the monitor to see if it was that. It's not. I unplugged the marquee lights to see if those were interfering somehow. They aren't.
Adjusting the game volume does not change the volume or pitch of the whine. The only thing that makes it stop is unplugging the speaker.
What on earth is this and how do I stop it?
Adjusting the game volume does not change the volume or pitch of the whine. The only thing that makes it stop is unplugging the speaker.
What on earth is this and how do I stop it?
