Guys, I had a problem with my toploader and thought I had it fixed from this thread: https://atariage.com...garbled-screen/
I finally got my NESRGB board in and this is what I'm getting:
on a different monitor I get similar:
It has a loud audio buzz and wavy graphics. I don't really think it's a sync issue as I tried it on both monitors and with csync and composite sync. It looks identical using both types.
When I did the av circuit in the other post here It also was a bit wavy (and I didn't have audio hooked up) but I dismissed it as the av mod being a rush job. I now realize something else is going on.
Could this be a capacitor issue? I've not seen anything like this before so I'm kind of stumped.