My LG lg32lp620h tv turns on stays on for like 30 min then shuts off won't come back on unless I unplug it and wait for a few

[justinjfair1]

LG shuts off on it's own but comes back after unplugging it

 

[Mark RM]

probably the DC power board is shot.

 

[YoFavRussian]

Is it hot when this happens? If so, that could be your cause. Panels that get hot will go into a protection mode to prevent from burning, up, next time it happens put your hand around the back and look for a hot spot.