I bought a Mega Drive 2 a few days ago and found there was a problem with the display. The screen is purple and blurry with occasional flickering. At first I thought it was a bad RF cable so I ordered a new AV scart cable off amazon. Got it today, hooked it up, and I still get the same problem. I've deep cleaned the motherboard and cartridge slot, so all I can think is that there's something wrong with the AV socket itself.
Oddly, Primal Rage displays normally on the game screen, but the menus have the same purple flickering graphics. I'm using an LCD flatscreen TV.
FYI, I have no soldering skills at all. If the console itself is broken in some way I wont be able to repair it.