Err… How to fix Samsung Series 5 LED TV black strip issue? Besides horizontal black bar, it has green vertical lines too sometimes. That’s the issue that I faced with my 40″ Samsung LED TV UA40D5000. I searched online for solution but failed to find one. Do you know how to solve it? Okay, here are the solutions. If your Samsung TV still in warranty period, sends it back to repair. Else you always buy a new one if you are rich. Or fix it manually by yourself. Yes, I solved it by myself. But no guarantee that this solution will do the same to your TV too. At least you can try if out of warranty.