Bought a set of Sennheiser 160 wireless headphones. My model TV has no headphone output, so I must use the 2 RCA jacks audio out. No problem with that. Problem lies with trying to figure out how to disable internal sound - currently disabled in favor of external speakers via HDMI to a soundbar with bass unit that has no bluetooth or external audio out.
In order to disable internal audio, Sony says i need to first switch external sound to TV sound, and then switch from there. After having done so, I have no easy to find way of disabling the TV sound to receive sound only through headphones. There is no sound "on-off" control only a fixed or variable function. Is there an easy way to do this?