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Nucman
Contributor I
June 20, 2021

playbar play one and sub have humming sound

Out of the blue my surround setup started humming during tv play back only connected via optical input. It changes to a buzz of changing input type to pcm. Noise changes based on how control sees the sound. No buzz when using Dolby 1.0 starts when it switches to 2.0

 

Diagnostic number 1730440927. 

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1 reply

GuitarSuperstar
Lead Maestro
June 20, 2021

Try unplugging all the speakers and TV from power for a couple of minutes. You might consider testing a different optical cable too.

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