Sega-Naomi

I set up my Naomi in a Naomi Universal Cab. The only problem I have with set up is my video is messed up. It is sort of like a double image. I tried adjusting the knobs for the monitor but got nowhere. I am new to working with arcade equipment. So, I am not totally sure what I am doing. Any help would be appreciated.

nm. i figured it out. the naomi needed to be on high res.