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johnjo569
Avid Contributor I
January 11, 2021

Sonos Arc isn't compatible with 2020 Panasonic HZ OLED Series with eARC

I have had my Panasonic HZ1000 since Christmas and updated from a Playbar to an Arc a week ago. No matter what I try I am unable to get the native tv apps to output Dolby sound. PCM in stereo yes no cut out, nothing wrong but as soon as I switch to Dolby output no sound or it is constantly breaking up. I had no problem at all with the playbar outputting 5:1. It wasn’t Atmos but at least I could get some form of surround sound.

I think I have no choice but to return the Arc as it seems its a common fault with all kinds of new TV’s and at £800 I might as well get something else that actually works with my TV!! Really poor from Sonos!!

 

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29 replies

BoredofBalham
Prodigy II
January 11, 2021

connecting by wifi? A big no no.
My, albeit lg, tv is connected via the arc hdmi and set to pcm. It works fine. All apps output the appropriate sound. Are the apps settings correct.

If this doesn’t work then the Panasonic tv HDMI ARC isn’t working as it should, thus making the TV not compatible rather than the other way round.

your connection to the Arc is from your tv HDMI ARC (or eARC)? You have the hdmi lead properly pushed into the Arc - it clicks into place?

    K.Tryggeseth
    Trending Lyricist I
    January 11, 2021

    I have HZ1000 and Arc

    just tested with internal Netflix app (The Midnight Sky) and i get Atmos (DD+).

    no problem at all

    Makes sure the Arc has latest firmware!

      GuitarSuperstar
      Lead Maestro
      January 11, 2021

      @johnjo569 The HZ1000 is capable of playing Dolby Digital Plus/Dolby Atmos audio from your TV’s native apps like Netflix. If you are using Netflix, be sure you have the Netflix premium account. Also be sure your Sonos Arc is connected to the HDMI eARC port on your TV.

      And make sure your TV settings are set to this:

      Speaker Selection - Home Cinema
      Dolby Atmos - ON
      HDMI Audio Format - Auto

      "Receive with simplicity everything that happens to you." - Rashi
        K.Tryggeseth
        Trending Lyricist I
        January 11, 2021


        Latest firmware i have is 12.2.2 on the Arc.

          K.Tryggeseth
          Trending Lyricist I
          January 11, 2021

           

            K.Tryggeseth
            Trending Lyricist I
            January 11, 2021

            I have Mode 2 selected here

             

              K.Tryggeseth
              Trending Lyricist I
              January 11, 2021

              ….and i have Software version 3.653 on telly..

               

               

              sorry.. many posts but hope they help.

                johnjo569Author
                Avid Contributor I
                January 11, 2021

                Thanks for all the time and help guys, its much appreciated.

                All the suggestions you have mentioned I have already done. 

                The Sonos and TV software is bang up to date as well.

                Tried alternative HDMI lead and get the same result, audio breaking up upon start then it disappears completely but it is in Dolby then at least.

                All the settings are as suggested and I do have a Netflix Premium account.

                K.Tryggeseth - Have you tried watching the native Netflix for longer than 5 mins? The first time it happened it was a gradual deterioration rather than straight away… were you on Apple 4K tv for the HDMI Auto settings (mode2) you showed me on the photo as this doesn’t appear with the native app?

                Boedofbalham - When I set the tv to PCM it only outputs in stereo not Dolby, is yours showing dolly for PCM?

                The actual power lead on my arc is very loose fitting, it doesn’t fit snugly into the Soundbar, it kind of easily wobbles about as if the socket is too big or there should be a piece of rubber or something in there, Is anybody else’s like that? Just wondering if that could have anything to do with it.  

                  K.Tryggeseth
                  Trending Lyricist I
                  January 11, 2021

                  Used nativ Netflix many times, but mostly before Sonos fixed LPCM from ATV 4K, since i only got stereo from there.

                  now i use ATV 4K only.

                  Mode 2 setting is in TV settings menu, not on the ATV4K menu.

                  You using the HDMI cable that came with the Arc?

                    johnjo569Author
                    Avid Contributor I
                    January 11, 2021

                    Yes using the supplied HDMI cable. I did try it with a new 2:0 HDMI cable I got but its still the same.

                     

                    Sorry I meant the mode 2 setting is on on the tv menu>set up but only appears when on Apple TV. If you go onto the native Netflix tv app then press menu > set up the option isn’t there?

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