Beolab 8000 hums ...

4 replies
xxxxx
Offline
xxxxx
Bronze
Posted February 14, 2021 at 19:37 GMT
#2151848
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
Offline
Daniel
BronzeFounder
Posted February 15, 2021 at 07:21 GMT
#2151849
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.
xxxxx
Offline
xxxxx
Bronze
Posted February 15, 2021 at 17:19 GMT
#2151850
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
Offline
Daniel
BronzeFounder
Posted February 15, 2021 at 22:14 GMT
#2151851

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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