I tried this myself, and it’s working almost perfectly for me except for one problem: the bottom of the picture is cut off on my TV. The output image is clear and stable, but the image is shifted down and to the right, the bottom 4-8 pixels are cut off, and I can’t find any setting on my TV that lets me adjust overscan. Also, the leftmost column has a single black pixel every 8 or so lines, and the picture goes crazy when I’m in the loader.
I’m wondering if it’s a problem with the TV or the output signal. The TV is a relatively small flatscreen that was bought from a secondhand store. It might be because it’s an NTSC television, but I’ve heard that even cheap digital TVs are multi-region, and since the output picture is solid for most games I feel like that shouldn’t be the problem. I also tried using a black and white CRT TV, but that TV is having some serious issues that are unrelated. It does look like the entire picture is sent out, though, and occasionally (when the CRT’s vertical hold cooperates) it looks like the picture is correctly aligned on the CRT. Does anybody have some idea about what might be wrong, or is it just because I have a cheap TV?