Tv turns on but then it shuts back off

hey @poolartduster1,

i would first try to see if there are any signs of a blink code on your set. that could point to a place to start. if not applicable, you can unplug any periphial thats connected to your power supply, i.e main board, driver boards….to see if your tv will post and stay on this way. could help to narrow down what may be causing the shut down. of course the first , first thing i would do is to take voltages on the main power supply to see if there is any variances from the printed voltages on the board.

if you are uncomfortable working with live voltages, dont. you do so at your own risk.