Look around for options to set the audio to PCM or Stereo but this is all about you remembering the setting. I have come to accept I get to try settings when this happens as the industry is all over the map here.
Be sure to check if your model TV has some demo or shop mode. I find this resets the settings after a time and can undo my work.
Hi, I have a lg 55" oled tv model no 55EC939V and a lg soundbar all working fine until I reset the tv now the problem I have is when I turn the tv on the soundbar comes on as well but it comes up tv arc then the sound goes off I then have to get the soundbar remote and press the optical button to get he sound on, before the reset it automatically came on as optical and stayed on any help would be great thanks

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