Chosen Solution
TV model: LG 70UM7370PUA This TV has its right side darker than the left, except for certain horizontal areas where it seems to match the left side in brightness. Additionally, the darker areas on the right side areas seem to refresh slower; when the image abruptly changes, it takes a while before the new image reaches the far right end of the panel, if that makes any sense. Also, it seems there’s some wavelike distortion within the panel itself on the right side, although it’s not too noticeable unless it’s a solid bright color. I’ve only seen others online whose TVs have horizontal line issues, or whose TVs have one side darker than the other, but none whose TVs seem to match this TVs image condition. Is there a basic reason why this is happening? Typical image:
Displaying a white background (with some text):
With one t-con ribbon disconnected:
With other t-con ribbon disconnected (receiving the same image input as above):
Something is wrong with the backlight. Main things that fail are be the inverter or the leds. Typically when I see an inverter fail, all the leds go out, so first thing I would do is try putting some new leds in. You should know that this typically involves removing the panel from the front of the TV, when doing this be very careful not to catch the ribbon cables running off of the panel on something as this will cause lines running across the screen.
I fixed my issue by peeling off the strips on one side of the TV. I followed these guides: https://www.reddit.com/r/TVRepair/commen… https://badcaps.net/forum/showthread.php…
