S1 is also related to graphics. If you are going to start popping out roms to verify, start with S1 and the C roms. M1 and V1/2 are sound related so...
I'm not seeing anything with date codes written on the inside of the cab. There's these numbers written in the top above the serial sticker though.
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Someone should throw your tv out the window since you seem physically incapable of posting a video with the correct aspect ratio and are too mentally...
