-The best part of these is the Sony CXA1645 video encoder. I have found on my particular TV these model Sega Genesis project the best video image.
-I have a late Sega Genesis model 2 with a VA4 motherboard. That one has a date stamp on the motherboard, the Majesco does not. Also my other VA4 Model 2 has a different pin connector.
This tutorial will show you how to remove the vertical lines that plague the NTSC Model 2 Sega Genesis version. It will show you how to feed a new clock signal to the video encoder chip to clean up the composite video.