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No sound for all channels | Xfinity Community Forum

    https://forums.xfinity.com/conversations/x1/no-sound-for-all-channels/602daf20c5375f08cd01d6a8
    Many tv's have one HDMI to DVI port. That port passes a HD signal but NO AUDIO. You can use it if you connect a additional DIGITAL cable (or Optical cable) to get stereo or 5.1 surround sound. Otherwise connect to a true HDMI port.

Xfinity TV Audio Issue Troubleshooting - Xfinity Support

    https://www.xfinity.com/support/articles/troubleshooting-audio-issues-with-xfinity-tv

    No audio on one channel | Xfinity Community Forum

      https://forums.xfinity.com/conversations/x1/no-audio-on-one-channel/602dae46c5375f08cde49109
      One device in my house with one channel that doesn’t have audio. Video is fine. No audio on the show but audio on the commercials. while watching a silent channel press the down button on the remote (not page down). then press the left button and go to SAP and press OK to turn that choice off. working now? 0.

    No voice track on Comcast HD channels - Comcast …

      https://www.dslreports.com/forum/r20386261-No-voice-track-on-Comcast-HD-channels

      No Audio on Local Channels - Cable TV Issues | Rainier Connect

        https://www.rainierconnect.com/support/kb/12105
        No Audio on Local Channels - Cable TV Issues. Solution: If you have audio on most channels, but have silence on some or all of your local network channels, you may have the Secondary Audio Programming (SAP) turned ON. The SAP feature allows your TV, VCR or Digital Cable box to tune in a second "track" of audio programming.

      HDTV channels blank video, but have audio? : …

        https://www.reddit.com/r/Comcast_Xfinity/comments/7eahmo/hdtv_channels_blank_video_but_have_audio/

        No sound on specific channels? : Comcast_Xfinity

          https://www.reddit.com/r/Comcast_Xfinity/comments/je9f1z/no_sound_on_specific_channels/
          Some channels will have spanish language audio. Some will just have the same audio as the primary track, but some channels are silent on SAP. Follow the instructions below to turn it back to English. If you don't have X1 boxes, look for a button …

        XFINITY TV No Sound - How to FIX? Comcast Xfinity - …

          https://www.youtube.com/watch?v=jXIxIDC5WRw

          How to fix no sound on cable tv channels Review - YouTube

            https://www.youtube.com/watch?v=l9nWDt_p30k

            HD Troubleshooting for Your Non-X1 TV Box - Xfinity …

              https://www.xfinity.com/support/articles/troubleshooting-your-hd

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