HOW TO FIX MY AV-32WFT1EK TELEVISION?

MY TV WAS WORKING FINE ONE DAY, NEXT DAY I COULD NOT GET IT TO COME OFF STANDBY. I PRESSED THE REMOTE AND FOR A FEW SECONDS IT CHANGES TO A GREEN LIGHT I, HEAR SOUND AS IF IT IS COMING ON AND THEN IT DROPS BACK OFF TO THE RED STANDBY LIGHT. A COUPLE OF WEEKS AGO PRIOR TO THIS PROBLEM IT CAME BACK ON FROM STANDBY WITHOUT ANY ONE TOUCHING THE SET OR REMOTE.