I was going to throw out my Sega Master System II today, but remembered there is an RCA mod you can do to it, and though I would give it a go..
I've found a few guides, but they all use a drawing rather than photos..
I find those type of guides hard to follow, as I don't know if that is the bottom of the board, or the top of the board..
Does anyone know of any guides like this one (different chip): http://www.youtube.com/watch?v=pJxBgH-zBVQ
My chip is the Sony CXA1145P.
Would be cool to try this out if its not too hard.