Does anyone know where to find a service manual for a Alpha Juno-2? Mine has a couple of keys that aren't working correctly and I tried to take it apart to find and fix the problem but couldn't quite figure out how to get it apart in such a way that it would be possible to reassemble it again. I bought the thing on EBay and it was filthy when it arrived so I'm guessing it may just be dirt on a contact but have never had one apart. Any advice? TIA