P55-F1 with Irregular Dead Backlight Zones and Flickering

The TV started displaying an irregular dark area in the middle and occasional LED flickers. Sometimes the dead zone moves to other areas. I attached a picture showing the irregular dead backlight zone.

Sometimes the entire screen works fine but still flickers in some areas if I dim the backlight. .

Pushing the backlight up to 100% seems to limit the amount of flickering.

. One time it turned on but had a vertical line down the center of the Vizio logo and then turned itself off.

I have the TV apart on my table. I don’t see any obvious burned traces or dead capacitors.

Does this sound like the power board, inverter, T-Con, or main board? I'm not entirely sure which component actually sends the "light em up" signal but its obvious its getting some weird signalling.

Any ideas what parts to throw at it?