Beolab 8000 working condition but background sound

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cpucomp Posted: Thu, Feb 6 2020 10:14 PM

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Hi everyone

I have a Beolab 8000 in working condition , but has a background noise (brumm) all the time .

the internal connection from the audio plug to the amplifier I have disconnected both side , the background sound remains stedy on. because of this sound  the loudspeacker is not going to the standby mode.

the dissolfing foam I have removed and the prints are cleaned from the remaining trash.

Does anybody has an idea how to proceed?

Thanks for answers.

regards  Ueli

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BritishRaj replied on Sat, Feb 8 2020 7:10 PM

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Hello Ueli

I am new to B&O. I also have 8000s which make a hum ... until I connect them to an amplifier or a smart phone.

As soon as the cables are connected to a signal source, the hum disappears 100%.

What are they connected to when they are humming? Through what cables?

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cpucomp replied on Mon, Feb 10 2020 2:14 PM

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Thanks for the reply. I have several BL8000 , normaly I connect them to my mobile, and only this one has the hum noise . I will try to connect to amplifier.

the problem is: If this noise is still present , the loudspeacker does not go to standby mode, He thinks the source of music is still on.

I will update you.....

regards Ueli 

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cpucomp replied on Fri, Feb 28 2020 2:04 PM

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hi 

its with all the sources the same! With the sound in the back I could live, its not hearable when music is playing , the problem is: the loudspeacker is no more going to standby mode. ( I think the sound is the reason that the sound shows the system , that there is still input on the cinch. 

thanks for further inputs..

Ueli