http://www.youtube.com/watch?v=-hJLPz91mTk That's everything. The RF adapter is an NES one. I was recommended to use one. The adapter is a DC one that corresponds to the Famicom, but it's not official (though it does say for famicom/disk system on it). No idea what it is.
May just need a good cleaning on the connectors in the carts and down in the famicom itself. Had a simular issue with a toploading NES it would blink out and scrambled graphics I cleaned the connectors with rubbing alcohol diluted with water and a can of compressed air. worked fine after that, also if the cart is over wobbly you might have bent the connectors in the famicom not real sure if that can be fixed. Front loading NES had a big problem of bending after prolonged use, but they can be fixed.