I have a Boss BS-3 Compression Sustainer that had hadn't touched for a couple years. I hooked it up to play around and it's now making a fuzz sound, as if the signal has been split and one half passes through the compressor, and the other half goes through a fuzz circuit. It does this whether it running off batteries or the adaptor. Here's a clip of how it sounds: https://s3.amazonaws.com/jh_examples/cs3fuzz.mp3 I've searched, and seen that some people have the same problem, but I've seen no solutions. Any idea what might be causing this, and if it's repairable? thanks!