I am currently trying to connect a Element TV ELEFW408 to a Sony DVD Home Theatre System DAV-HDX275. I connected both using a Digital Optical Cable yet the sound still doesn't run through the speakers connected to the Home Theatre System. I can't find a option in the TV Settings to enable external speakers. The TV doesn't have a Coaxial Digital Cable input and the TV doesn't support ARC HDMI. Does anyone know the solution to my problem?