Panasonic jz1500 – sounds keeps dropping when connected to soundbar

stephentw

Prominent Member
Sorry I don't understand what you mean by switching back to HDMI2? I only have one HDMI cable from my AV amp to the TV. Do you have two?
If you're still having this issue you might want to try changing the HDMI Audio Format to "Pass Through" that's the equivalent of bitstream so it should send the audio as intended to a soundbar/AVR. Also it might be worth changing the "HDMI auto setting" to mode 2 in the setup menu. That drops the HDMI port back to HDMI 2.0 instead of 2.1 meaning you lose the gaming features e.g. VRR, 4k120fps but it seemed to fix my audio issues.

Annoying though because I want to use the gaming features. Fingers crossed for this firmware fix.
 

avfmaniac

Standard Member
I also get audio dropouts when watching cable. My TV is connected via HDMI 2 to the AVR's HDMI ARC port. Note that I get cable using the DVB-C tuner and a CAM module in the CI slot. So I am not utilizing any HDMI to get the signal.

Is this a software bug indeed or a faulty TV?
 

Timmie

Established Member
Have you tried launching Netflix from the AV input, instead of hdmi 1 to 4, as this usually fixes the issues until I turn the tv ooff and in again.

Thanks, I'm having the same audio drop-out problem with my new JZ1500 and this fixes it. Hopefully there will be a software update.
 

Snowfire

Established Member
When the sound drops out or has issues, have you checked the sound options to make sure that it says "home cinema" and isn't set on "tv".

I had an issue where my sound was reverting to TV, even though it was still coming out my Soundbar. When I tried to change it back it just moaned to check the HDMI cable.

In the end it was HDMI port 1 causing the issues. As soon as I rebooted the device plugged into HDMI 1 or removed the HDMI cable it fixed the issue. (soundbar is connected to HDMI 2 for earc).
 

lukusw

Novice Member
Just to say, I'm experiencing the same problem.

I'm connecting to a Panasonic soundbar (HTB600) via an HDMI cable via eArc to HDMI 2 on the TV.

Sound cuts out for about 5 seconds sporadically then reconnects.
 

kcabhead

Established Member
Same here, i'm connected to a Sonos Beam 2 and get drop outs on the native apps mainly.

When will panansonic pull there fingers out and admit this is a genuine issue, shame because the TV other than this issue is awesome!!!
 

Masher

Standard Member
Just got my JZ1500, and have been watching the native apps (Netflix - Dolby Vision and Dolby Atmos), You Tube, Disney, Amazon Prime - absolutely no dropouts to my Samsung Q950A soundbar.
Have you checked the spec of your HDMI cables, can they handle 4K and uncompressed sound? Personally, I stick with QED cables, and currently have my system connected with
QED PERFORMANCE Ultra High Speed HDMI cables.

 

lukusw

Novice Member
@Masher How long have you been listening / watching for?

This happens to me briefly (and intermittently) once or twice a day over hours of viewing.
 

lukusw

Novice Member
I bought a cable that's compatible with HTML 2.1. Currently in conversation with Panasonic support who are looking into the issue.
 

kcabhead

Established Member
Fingers crossed your situation doesn't change! If it does, be sure to report back ..
It does only happen occasionally…but it should not happen at all!! I have a Sonos Beam 2 which is compatible and it comes with the relevant HDMI cable, tried switching to the QED cables mentioned and still no change.
This is definitely an issue with the TV due to how many people on this forum and others are raising the point.
 

Tron04

Established Member
I only occasionally connect my soundbar to the TV and then sound is fine without any sound drops. But interesting enough when I disconnect the soundbar and switch sound back to TV mode, the TV video playback engine sometimes goes "mad". But only on video playback through internal apps or internal mediaplayer (not regular TV or stuff that comes in via HDMI)
What I mean by this: When playing videos through the internal mediaplayer then, there are microsound stutters in the video and also videoplayback stutters a bit too. the stutters are just for a fraction of a second and also irregular. Quite barely noticable. Turning the TV off and on again via remote does NOT help.
However unplugging the TV from mains for 5-10 seconds and then plugging in again fixes it.
What is this all about.... !?
 

greencode

Established Member
I’ve got the same issue. Beam 2 connected to HDMI2. Sound either cuts out for 5 seconds or so or the sound is really glitchy. Not all the time. Very random and happens on both TV and any other connected device.
 

greencode

Established Member
I’ve got the same issue. Beam 2 connected to HDMI2. Sound either cuts out for 5 seconds or so or the sound is really glitchy. Not all the time. Very random and happens on both TV and any other connected device.
Happened again yesterday. Only way to stop it was to turn the tv off at the mains and back on again!
 

Tron04

Established Member
I can only recommend to report such issues to Panasonic via chat on their internet support page. They will open a ticket and you will get a ticket number via email and can also reply to that email.
 

phat-ant

Standard Member
Did anyone, get a resolution to this yet?
Something similar has just started to happen to our TV, same model, purchased in November last year, everything been fine until yesterday however when trying to use the Native APPs we get alot of clipping/blipping on the audio.
Only resolution is to pull the power out of the wall and plug it back in.
Happens with both the AVR output and the local speakers, though not as pronouced on the local speakers. We will trail more setups tonight to see if we can find a common pattern.
 

Snowfire

Established Member
When it happens, if you go into sound settings does it still show as home cinema, or has it reverted to TV speakers (even though it still plays through external ones). If so, might have a rogue device causing handshake issues (again this is if you have things plugged into the hdmi ports). Suggest unplugging them one at a time and seeing if it fixes it. If it does it will be cec on that device causing all the problems. You can buy a cecless adapter from Amazon to solve it.

Obviously this might be a completely different issue, but this was my problem and drove me mad. 😅
 

greencode

Established Member
Did anyone, get a resolution to this yet?
Something similar has just started to happen to our TV, same model, purchased in November last year, everything been fine until yesterday however when trying to use the Native APPs we get alot of clipping/blipping on the audio.
Only resolution is to pull the power out of the wall and plug it back in.
Happens with both the AVR output and the local speakers, though not as pronouced on the local speakers. We will trail more setups tonight to see if we can find a common pattern.
No, not yet. I was trying to see if there was a pattern before reporting to Panasonic but unfortunately and annoyingly it's very random. I've tried with and without the soundbar (Sonos Beam Gen 2) connected (HDMI2) but still the same happens. It does only appear to be on the native apps. Last night although I wasn't getting the constant glitches until I pull the power cable out to resolve but instead the sound would cut off for around 5 seconds and then start back up again.
 

Ashketchup

Established Member
When it happens, if you go into sound settings does it still show as home cinema, or has it reverted to TV speakers (even though it still plays through external ones). If so, might have a rogue device causing handshake issues (again this is if you have things plugged into the hdmi ports). Suggest unplugging them one at a time and seeing if it fixes it. If it does it will be cec on that device causing all the problems. You can buy a cecless adapter from Amazon to solve it.

Obviously this might be a completely different issue, but this was my problem and drove me mad. 😅
Thank you! Previously, CEC was extremely flaky with my JZ980 and Marantz pre-amp. Often the TV would boot with the sound mode setting on 'TV' rather than 'Home Theater', not seeing the pre-amp at all.

When in the Panasonic boots in 'TV' sound mode, trying to change it to 'Home Theater' results in an error. The eARC pass through function doesn't work and everything is converted into 2.0 PCM. Controlling the volume with the TV remote doesn't work and neither does auto powering on/off the pre-amp.

After disconnecting my Kodi box, CEC on the Marantz works perfectly. Probably my biggest annoyance with the TV now solved :thumbsup:
 
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greencode

Established Member
Is anybody still getting this issue? I’ve been in touch constantly with Sonos and they have run through everything they can to try to resolve the issue. I just can’t figure out whether it’s an issue with the Sonos Beam 2 or the Panasonic tv?!?!
 

rjn21

Standard Member
If your symptoms are a randomly occurring sound drop out whilst a soundbar is connnected to eARC 2, which lasts for about 5 seconds then recovers with no action required, I have the same with a Samsung Q70T soundbar. It occurs maybe once a week. I can’t determine any pattern of occurrence. Internal apps, tuner, ps5, all show the issue.
 
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