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Beolab 8000 hums ...

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merlin
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North from Germany
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merlin Posted: Sun, Feb 14 2021 7:37 PM 
Hello B&O community,

since today one of our Beolab 8000s hums when it is switched on

disgusting in "felt" 50 Hertz (network) frequency ...

I suspect the power supply capacitors, or am I lying

possibly completely wrong ...?

I have the service manual and I can handle the measuring device and soldering iron.


Thank you for constructive information

Greetings from Merlin
Daniel
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Svinarp, Sweden
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Daniel replied on Mon, Feb 15 2021 7:21 AM
Hi,

It could be a faulty/damaged powerlink cable. It’s easy to check, just switch the cables to see if the problem remain on the same speaker.
merlin
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merlin replied on Mon, Feb 15 2021 5:19 PM 
Hi Daniel , 

thank you for your quick reply. I tried 2 other Powerlink cables ... 

unfortunately no improvement can be heard. 

Nevertheless, thank you again for your help and 

greetings from Merlin to Sweden
Daniel
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Daniel replied on Mon, Feb 15 2021 10:14 PM

OK, sorry it didn’t help. That’s where my knowledge ends, so I hope someone else can help you more.

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