I'm having a problem with the audio on a Jurassic Park Pinball. Most of the audio works fine such as the movie quotes, dinosaur noises, etc. However all of the background music sounds garbled. Its like the pitch of the audio is way too high.

For example, when you press start, its supposed to play the jurassic park theme. You can make out what it's trying to play, but its super high pitched, scratchy, and garbled. However, a helicopter shows up on the D.M.D. and John Hammond says, "Welcome to Jurassic Park," and its clear as day.

Any ideas? I've already tried changing out about 2/3s of the CAPS on the audio boards. The only ones I havn't changed are the ones that go to the individual speaker channels because the speakers are working fine.

I made 2 recordings of audio samples:

The first is of the game with just the attract music playing, then a game starting, and a little bit of game play.
http://www.filedropper.com/jurassicparkpinballaudiosample1

The second sample is of the actual sound test in the diagnostics. First are voice quotes, then the background music. It's the background music that's distorted. None of that scratchy high pitched noise is supposed to be there.
http://www.filedropper.com/jurassicparkpinballaudiosample2

These recordings are exactly how it sounds from the game, as far as I can tell there is nothing misleading about the quality of these on a computer.

Thanks!

Just FYI, I did end up fixing this problem. The Data East sound board has jumpers on it and there was one jumper whose location had to be changed. Unfortunately it was so long ago that I dont remember exactly which one, but I know this fixed it. Just wanted to say this because I noticed I had a couple PMs about it.