I have a Bally Lost World project that I'm finishing up. It had no sound, but I was able to reflow the header pins and replace caps on the sound board to get some sound. I only get one pitch tone though that plays for everything(beeping, not solid). Any ideas?

32 was on, but switched 8 off and no change.

Here is video of the gameplay sound.

Thanks for the help guys. I replaced the prom with a new one and it fixed the problem!