Help, I need to fix my LG TV Screen

[KrOo12]

KrOo12

Hello, I own an LG TV model 42LA6200-UA. It suddenly started flickering, why can this be happening?
Which tests do I need to run?

 

[rgd1101]

MERGED QUESTION
Question from KrOo12 : "LG TV Flickering"

Hello, I own an LG TV model 42LA6200-UA. It suddenly started flickering, why can this be happening?
Which tests do I need to run?