Hello , I want to hook up my Nintendo Famicom with the AV cables that are attached to it (black and red cables). When I connect it to my crt tv the image looks kinda dark. I have connected it with the NES rf switch and it looks ok but I was wondering if there was a way to hook it up with the AV cables that are on the famicom for a better clearer picture. Are the AV cables that are attached to the famicom just for Japanese tv's? Thanks