Chosen Solution
I moved my 50" 4k SEIKI to her house and it now has vertical lines on display. I did bend a video input connection as I took off coax antenna cable. Looked at that connection on board and it does not seem to be shorting anything. Should I try to replace that board? Could cable connections have come loose? There are several versions of this tv. I see all boards listed for sale from one with broken screen, but the one I damaged looks different. Could I just replace all with new (keep same screen)?
I’m not an expert on televisions, but this looks like potential LCD damage. I see very similar lines when there is damage to an LCD in a phone or a tablet.
