Chosen Solution
I have a LG 60PN5700, about 5 or 6 years old, it works perfectly fine, but it seems if it is left on standby for an extended period it will power cycle when you attempt to turn it on. Leaving it unplugged for a few day seems to temporarily alleviate the issue. I can not see any visual issues on any of the boards, have tested all voltages and have not seen any out of range or fluctuating. Any help would be much appreciated.
@lostkime this “Leaving it unplugged for a few day seems to temporarily alleviate “ is usually a power board issue. either power MOSFET or some failed caps.
