sega genesis model 2 video issues

i have a genesis that displays a picture and all, but it has a purple tint to it, thought it was the a/v port at first but after remelting the solder(they can come loose after a while) it still had the purple tint. im thinking that maybe one of the capacitors near it has gone bad, but i dont know which one specifically would control the video and pulling caps at random doesnt seem like a good idea. anyone know which cap could be the culprit?

 

Two things, are you sure it isn't your TV and are you using composite or RGB?

 

itts not the tv bc i tried another genesis and it showed the colors fine. im using composite, systen has never been modified in anyway.