Chosen Solution
I have Panasonic (TH50PV600M) TH50PX600U, The TV won`t start, when power on I get red lights blinking (one time) and then followed by green lights blinking (three time), then the TV just shuts down and start again to do the same sequence in a loop, which board do I need to replace? Update (01/19/2020) Panasonic (TH50PV600M) service manual (Blinking codes)
sweetnoble 3 blinks for your model indicate a 3.3V SOS and points toward the D-board having failed.
