I TV comes on stay on for 1 minute and turn off why

[bigdom3d]

My TV comes on for 1 minute and 27 seconds and turns back off why

 

[kanewolf]

Overheating board? Bad board? Bad internal power supply? There is no way for anyone that does not have hands on the TV with a troubleshooting guide to diagnose it. You either need to take it to a repair shop or replace it.