820-3476-a distorted screen

[PPVCC_S0_CPU]

i have 820-3476 that have distorted screen, i checked it under microscope and found that one pin of lvds connector was burnt, so i replaced it and it worked fine for few hours and now its back doing same thing, board have no liquid damage or whatsoever what should i check next?

 

[2informaticos]

Video cable wasn't affected in the same pin?
Which pin/signal is that?
Can you post a picture of the failing screen?

 

[JohnB8812]

Yes please post a picture of the issue.

 

[PPVCC_S0_CPU]

The screen was faulty as well, had replaced lvds before and it worked for few hours and started doing same thing, which led me think that problem was with logic board, checked with new screen and its working fine