MegaDrive 2 60/50Hz Colour Correction Modification using (PIC 12C508/P)

Hi,
I'm tired of attempts to correction Colour for MegaDrive 2 VA4, All attempts were used on the Internet and did not get a result i used oscillator's and crystals and everything did not get a Colour with switching from PAL to NTSC. After that I saw the chip SONY CAX1645M its same in the PSX 5502 so i moded MegaDrive 2 VA4 and used PIC 12C508/P with Crystal it's work prefect

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