Museum of the Game® & International Arcade Museum® Forums

Working on this Atari Star Wars, the speakers are producing a rhythmic popping sound. Buh-duh Buh-duh Buh-duh... its a very annoying sound thats pitch causes hearing damage so I turned the volume pot down to work on other parts of the machine as I am still troubleshooting the monitor, flight-yoke, etc.
The popping plays during all modes (test, game, attract)

I think at least, most, if not all of the sounds/music are working fine during gameplay. Plays attract sound etc. (I need to check some more)
Sometimes the popping sound will stop briefly depending on where the game play is, which I guess means its is a boardset issue? I reseated all the chips and cleaned the connectors/sockets/legs with deoxit... as ideas what should be replaced?