I have a home theater setup with LG TV+Beam+subwoofer + 2SLs speakers,Beam connected to TV via eARC HDMI, using Sonos S2 system.Connected to the TV via HDMI are a Dish Hopper 3 receiver, a Samsung Blue-ray and an Amazon Fire TV box.
TV has latest software and firmware. The Sonos system was purchased in March 2020 and so is out of warranty.
All worked well until 2 days ago when I suddenly lost all sound on the system. Spent 90 minutes on the phone with Sonos tech and completely reset up the whole system. After I hung up with tech, I realized I was getting audio dropouts which became more frequent the longer the system was on. I disconnected the HDMI from the ARC port and used the TV sound instead.
Yesterday I rebooted the entire system by disconnecting the power and reconnecting after 1 minute but it did not help.
Today I switched out the ARC HDMI cable but still was getting dropouts, more frequent the longer the whole system was on, such that after 1 hour the audio was unintelligible .
I called Sonos tech again, and they ran several diagnostics, had me unplug all the HDMI cables, then replug and repeated the diagnostics. He was able to demonstrate that I could play Amazon music directly thought the Sonos without any dropouts.
The tech said that the diagnostics show that the system is working fine, even though I insisted it is not, given the persistent audio dropouts.
I was told my only recourse is to call tech again (3d time) after which they would arrange a replacement beam at a “reduced cost”.
Is there anything else I can do ,especially involving the LG TV settings, that might avoid having to send the Beam back to Sonos?
It just seems suspicious that everything worked fine and this problem suddenly appeared, but looking though the recent posts on the Home Theater forum, it seems people have had this problem for at least the last month with different models of TVs, especially LG and Samsung.
Thanks for any assistance.
Best answer by Airgetlam
I’d jump in another direction on that assumption, honestly. It’s more likely that there’s another device that is causing CEC interference with the ability of the TV to send a clear signal to the Beam. I’d look at turning off CEC on all other connected devices.
Yes, there’s a small chance it’s interference on the cable, but that’s a really small chance.