I have a Sharp tv, sonos sound bar, play1’s and sub.
Tv connects to a hdmi Cat6 converter via hdmi. The cat6 connects to another cat6 hdmi converter then hdmi to the cable box.
Red light is coming out of optical cable at the end that connects to sound bar.
Sonos system plays music. But when you switch to tv input, the icon appears for tv but no sound.
Best answer by Codechick
I fitzed around and have discovered that the app has the incorrect volume. If you connect an IR remote to the playbar through the app - and then use the volume - it will start to play the TV audio. Once volume is raised the app detects that the source is TV.