Chosen Solution
I have an LG 55UF6450-UA. The bottom half of the screen appears fuzzy but when viewed closely, I notice that every other scan line seems to be grayed out. The top hallf of the screen is ok. Also, sometimes the bottom half of the screen will flicker. I tested this with the menu screen displayed and no external input connected. I was wondering if this might be the t-con board? This shows the dual scan lines with some grayed out. Notice the top half of the screen is ok.
This shows a closer look…
@tilson looks like it could be a bad panel. You can of course try a new main board first, but horizontal lines etc. are usually caused by failed Gate Drivers on your panel. Take a look at the side of the panel and see if there is a circuit board that has small ribbon cables going into the inside of the panel. Check on that circuit board and try to exert some pressure on those ribbon cables. See if that changes anything. Again , a picture is worth a thousand words ;-)
I have a fuzzy digitalization lime bottom of my Sony. Only on regular tv. When apps and Netflix put on it’s gone. Ifk what to do.
