My gba is up and running , snes waiting on caps and pick fuses. Mega drive is proving to be a pain voltage everywhere it should be yet still no pic, not got a scope to check data signals tho unfortunately , 5v is perfect on every chip
Doesn't the megadrive use an rf modulator? To be honest I would go straight in with a composite / rgb mod. You can pull video straight from the chip so can wire around the RF output and see if it works. I believe the RF modulator will also have a pot in it for adjustment.
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