It is possible that the power supply in your TV is no longer functioning. If it's an older set you DO NOT want to try to fix it because even a non-working power supply can hold a very dangerous charge. It should to be fixed by a professional.
First look either the TV lamp or the TV's various special features to correct the issue. If the red light steadily blinks then replacement of lamp is required.
make sure that the power cord is not damaged please remember that you stand by the tv via remote control.110 volt dc power checked in smps& the startup circuit .