If worst comes to worst (it might be the best way but price would be a bit higher because of shipping) you can always order it from Konami's website. I don't believe it but apparently they have some in stock with 1-2 day shipping.
Konami - Beatmania with DJ Controller
Not sure how much shipping would cost but at least you'd get it replaced. When I have enough money saved up for Distorted, I'm going to get a 3rd controller so I can replace parts if they begin to fail. Presently have 2 for doubles, but the controller I play singles with is starting to have keys that sound really bad, and one key might be starting to return slower.
Good luck with whichever method you take to getting another controller.