LG 55UH6150- trouble powering up, then half lit screen (pictures!)

[valvashon]

The 55" LG has been in the basement for a few months without being used. Turned it on yesterday, set came on as it should and showed a complete screen for about 5 seconds (was on a broadcast channel but no antenna was connected), then the screen went mostly dark with about 1/3 of the screen on the right lighting up with brighter lines in that lit part (sorry, no pictures of that). Power LED was cycling too, preventing the TV from fully powering up.
Pulled the back off, all boards looked OK. Pulled the LED connector, turned the set on to see if it would power up but I don't belive it did. I then plugged the LED's in and powered it back up. Heard a bit of a snap and then the TV finished powering up but now with the entire right half dark and the left half lit up.


I'm probably looking at LED replacement of course, any ideas how difficult it is on these? Are there LED's on the top and bottom like there was in the CCFL days? Are the LG sets all glued and bonded together or are they serviceable? I can pull it apart again to take pictures of the boards or anything else if it would be helpful.

[valvashon]

I did find an "iFixit" for this but it's light on the details. What voltage should I look for at the LED driver connector to make sure it's the LED's and not the board?

[Davi.p]

How was in this period the climate in that basement? Humidity? Was it well covered? The wiser action you can do, since at first power up the behavior was different, is to wait for eventual humidity residue to evaporate, then if in a 3-4 days i does not fixes itself think about opening it and watch for the bars codes (left is one code, right is another)