50/60 HZ on an old Model 1 Saturn

The only thing i got is a french site :-(. There stands that i should connect JP1 and thats it. But instead of this I get a freaked-out picture and a sirring sound from my saturn and TV.

Well I`ve loosen this connection and everything was fine ... but how can I get to 60 hz via switch?
 
connecting JP1 should be the way to switch it into 60hz... perhaps your TV doesn't support 60hz? By the way, what video cable do you use?
 
of course my TV supports 60hz.

I've modded a new version Saturn with this switch and there it works fine. The cable is the standard cable as for the other mod.
 
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