Hello, I bought the EX668 in a very decent condition. I've already changed the belt and got it all together. It works, but I don't see any tape selector. User manual for this one is very short and I couldn't find anything in it. Maybe this option is set somewhere in remote pilot? I don't have it, so I can't check it out. 

Any ideas? I'm looking forward for your anwsers

Andy

Probably an auto tape selector model. If it is, there will be a micro-switch inside the cassette compartment that match up with the notches on a CRO2 cassette.