I have an older Vizio 32" HDTV Model # VW32L HDTV20A. It doesn't produce any sound throught the headphone jack or the component sound port. I have been through all the settings on the TV and can't get it to work. I've had this tv for about 5 years but this is the first time I wanted to use earphones/headset for the sound. If anyone has any suggestions it would be appreciated.