Main problem at the top of the page was due to a corroded trade on the motherboard that had to be repaired. Other issue was I couldn't get a green signal for some reason. Worked correct on composite, but my amp and the amp I purchased from someone wasn't fixing the problem. Turned out the green leg on the 8 pin din I used was slightly too long and had rubbed mask of the board causing it to ground on the copper below. It was frustrating as fuck because I could trace the signal all the way to the green pin on my scart cable, but couldn't figure out where the issue was.
Very nice. Glad to see you got it working. How much did you pay for it?
I had something similar happen once. Since then, whenever I have a problem I always test it by just touching each pin with the multimeter to ground.