FC Twin problems

I bought an FC Twin last year around christmas time. It plays both NES and SNES games. recently however it has lost the ability to play nes games. It started by just putting lines on the screen over the games. Now nothing comes up on the screen except occasional glitches and noises. The Super Nintendo port still works just fine. Anyone know how I can fix it? or should I just buy a Nintendo?

 

Buy a nintendo. Clones are always a complete crock of shit. Poor parts and poor build uality.

If you really what to fix it open it up and see if it uses a 72pin connectors