I have a standard jamma cabinet, the only game I've had in it before was bubble bobble and the picture was fine.
Now I've just put Tekken 3 in it and the picture is messed up - it's like there are the picture is been put on the screen 3 times but there are squahed, ie one at the top, one in the middle and one at the bottom. My first thought was to mess about with dip switches, but I don't have a manual and can't find one on the web. My second thought was that it could be some sort of sync problem?
Any help please guys?