when i turn my DC on all I get is a black screen
i recently bought a dreamcast via ebay. when i plugged the A/V cables into my TV and turn it on, nothing showed up on my screen. I went through all the inputs, and tried channel 3. I also tried another TV to see if that was it. It wasn't, I can't seem to get the audio or video to do anything.
This was with nothing in the dreamcast, I hadn't tried to put a game or music cd in yet. Is this problem known, common, am I doing something wrong, or did I just get a busted DC??
thanks