goes off on its own sharp tv

[Darran]

i have a sharp lc-42sb48ut why does it power up an then goes off completely after 10 seconds an it has no blinking lights none what so ever i then have to remove the power cord for about 10 seconds an then i can on it again an the same thing happens

 

[Darran]

MERGED QUESTION
Question from Darran : "tv goes off"

i have a sharp lc-42sb48ut why does it power up an then goes off completely after 10 seconds an it has no blinking lights none what so ever i then have to remove the power cord for about 10 seconds an then i can on it again an the same thing happen