Purchased from AAFES on Black Friday 2015 so out of warranty and LG Tech Support is useless. I haven't had any previous issues and absolutely love the TV. The other day watching Hulu it started locking up and freezing then began powercycling itself over. If you shut it off and turn back on it will be fine for a few minutes then freeze and shut itself off again. I have tried a different wall outlet, a new power cable and reset to initial settings but nothing has resolved the issue. I'm somewhat proficient with electronics and believe I am capable of replacing circuit cards if necessary but need help determining whether it is the Power Supply (LG EAY63989301) or Main Board (LG EBT64049102). Been hesitant on opening it up and reseating things but that is likely my next step. Am I missing any obvious troubleshooting steps/ideas or easy fixes for the problem? Any help would be greatly appreciated! Deploying soon and don't want to leave the family with a useless TV.
Note: There are two variations of this TV, the one I have is the AUSYLJR.

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