Enthusiast II

No audio from Sonos Port digital output - "PCM Zero" signal.

Forum|Forum|3 years ago
March 29, 2023
49 replies
3064 views

Hi Folks, my Sonos Port is plugged in to a Lyngdorf amplifier via digital coax and has worked fine since I set it up initially. However, I’m not hearing any sound from the Port now, and the amp says it’s receiving a “PCM Zero” signal - it was fine on Sunday but no sound from any source on via the Port now. Has an update changed something? Any help would be hugely appreciated, thanks!

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Pinned Reply By Corry P

Hi @only_sleeping et al

We now consider this issue fully resolved. If anyone is still experiencing problems, I recommend they get in touch with our technical support team.

Thank you for your patience.

N

Nielsen

Lyricist I

I have the same problem, but with Genelec 8340 active speakers. Hopefully there will be a fix soon.

Airgetlam

I’m not aware of any change in the update that would factor in to this. Have you tried to submit a system diagnostic , and called Sonos Support to discuss it?

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the phone folks, they have tools at their disposal that will allow them to give you advice specific to your Sonos system and network.

Bruce

M

metalifloyd

Lyricist I

I also have the same problem but with an Arcam SA20. Amp shows 44.1kHz signal received but it’s totally silent. This worked fine for a year until a couple days ago. I also noticed my system did an update so I expect the update broke this. I tried contacting support, they said my Port is out of warranty and I need to buy a new one. Not helpful. I actually have more than one Port. They all exhibit this sudden behavior change. I wish we could somehow report this bug to the actual engineers.

O

only_sleepingAuthor

Enthusiast II

Thanks for the replies so far, they are useful if only to confirm that I’m not the only one with the issue and that the unit has updated and Sonos have caused the issue.

I chatted with support last night who refused to help any further until I contacted Lyngdorf to ask what “PCM ZERO” meant! The replies from other posters this morning seem to confirm that this is an issue caused by a Sonos update though, the second time in recent memory that an update has broken some functionality with the system for me (which I find really hard to forgive).

I’ll wait to hear back from Lyngdorf and then contact support, but in the meantime, if anyone else learns anything new, please share.

M

MartinSande

Contributor I

Same problem here. I have a pair of Dynaudio Xeo 4 and have used the coax-output for years without any problems. Stopped working yesterday. Hopefully a fix soon…

S

SoupNoodle

Lyricist I

I’m having the same issue with my Port + Genelec 8330A/7350A system. This is most certainly an artifact of the recent update, as I also had this issue with the beta.

G

Gliderman

Trending Lyricist I

Same problem with me! Arcam SA30 amp which was working fine now says the digital input from the Port is ‘Not Valid’. So frustrating!

K

kalamon

Lyricist I

I have the same issue. My Port is connected to NAD 3020 and it stopped receiving digital signal from Sonos today. Worked fine last time. Analog output works properly. I thought my coax input or output blew up, but apparently not.

Any word on a fix?

O

only_sleepingAuthor

Enthusiast II

I’m chatting with support.

They are aware of the issue and working on a fix, but refusing to blame the update or provide any kind of timeframe.