Nes Top loader Video Problems

Hey picked up a NES Top loaders today and when I hooked it up and tested it the game comes on the screen but looks glitched like a dirty game. Not sure whats going on tried cleaning the game, changing the RF, Changing the AC adapter, and cleaning the pins inside. The game comes on the screen with sounds and sounds like its loading fine. Like in Mega man 3 I can here the music come on at the menu and everything. Double Dribble starts up with it yelling its name and then doing the slam dunk. Seams like everything is working fine but the picture. The picture looks like the game is glitched anyone have this problem? I can make a video also

 

If you can, open the system up and inspect it for any signs of bad traces, there's a possibility that there might be some corrosion near the cart port that got to one of the traces. There's also a chance that the PPU might be on its way out, but that's less likely than having bad traces.