Tv powers on then off within a minute
Sanyo DP55441 Tv powers on then off within a minute
Is there any video input to the TV because many new TV's will turn off after about a minute if there isn't any video signal detected. Try connecting a DVD player and play a DVD then turn on your TV. Then if it doesn't stay on then in the correct Input mode in this case either DTV or DVD or even Aux. Whatever input you use the TV should now show it. If it still turns off then it is probably a power issue.