“Sound bar volume fluctuates (goes up and down), without manually changing volume on remote or sound bar. Does it on all programming. I am using HDMI ARC, have tried optical cable, with no positive results. Any suggestions?”

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• Sorry to hear you are not having a smooth experience. I would love the opportunity to have our technical support team learn more about the issues you are experiencing. When you have a free moment, they’re available through text message, chat, or over the phone. Just go to support.VIZIO.com and click on ‘Contact Us’.

  Answered by VIZIO 5 years ago

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