“Seems to work fine when on, but when I turn off the sound bar, no audio and video passes through the unit to the TV. Shouldn't the signal from the cable box simply pass through the sound bar so I can watch TV without the soundbar's sound?”
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Hello there, Alcohen. It sounds like your LG S70TR soundbar is set up in a way that is interrupting the signal pass-through when it’s turned off. The soundbar should pass the signal from your cable box to the TV when it's powered off, but this functionality depends on the connection type you're using (HDMI ARC/eARC or optical). If you're using HDMI ARC or eARC for the connection, it typically supports audio pass-through. However, if the soundbar is off, the audio may not pass through, and you'll have no sound or video output on the TV. To ensure it works properly: Check the HDMI ARC connection: Ensure the HDMI cable is plugged into the HDMI ARC/eARC port on both the TV and soundbar. Enable HDMI CEC (Simplink): This allows the TV to control the soundbar and can enable pass-through when the soundbar is off. Use the TV’s internal speakers: When the soundbar is off, make sure the TV is set to output sound through its built-in speakers if that’s what you intend. Verify the input source on the soundbar: If the soundbar is set to the wrong input (e.g., optical or Bluetooth), audio pass-through may not work correctly. If you're still experiencing issues after checking these, please refer to the LG troubleshooting guide for soundbars for further steps. LG Sound Bar – Troubleshooting No Audio from External Sound System - https://www.lg.com/us/support/help-library/lg-sound-bar-troubleshooting-no-audio-from-external-sound-system--1422464978777 Feel free to reach out through private messages on Social Media @LGUSSupport if you'd like more personalized assistance! —Renzo
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