Playchoice 10 graphical glitches on PCH1-01-CPU, SMB3

emubastard01

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Playchoice 10 graphical glitches on PCH1-01-CPU, SMB3

So I saw another thread that stated that -G games on the PCH1-01-CPU revision of the playchoice 10 PCB would cause graphical issues. Specifically, in my case, Super Mario Bros. 3, which was also referenced in that thread as a -G game.

I've confirmed the issue because I also have a PCH1-04-CPU and SMB3 works without issue on that board.

I read someone talking about a "mod" for the PCH1-01-CPU revision to make the -G games work but couldn't find exactly what the mod was, does anyone know?
 
Has anyone seen a picture of this mod completed that can link it here or upload a picture of what this mod looks like on the physical board when it's complete?
 
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