ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Like described in another thread our mk1 BV11-40 suffers from a buzzing/humming sound from the right speaker during bright scenes with large colour squares, for example netflix cartoons, commercials or news bulletins with (partly) animated screens. The strenght of the humming sound is influenced by the brightness and colour of the screen and constantly changes in intensity and pitch.
If you turn up up the volume you cannot hear it anymore but with low volume levels the sound is annoying.
the dealer has exchanged the power board and all three icepower amplifier boards, no result whatsover.
The dealer now claims his demo BV11-46 unit also has the buzz as well and is model specific, kind of a deadlock situation. We are not exactly whining about it for fun, the humming sound is just too annoying during some programs.
To all BV11 mk1 owners, could you do me a big favour and play a (netflix)! cartoon with bright colours and check if any kind of buzzing humming is audible from the right speaker? Many thanks, your help is appreciated!
LeMirage: Like described in another thread our mk1 BV11-40 suffers from a buzzing/humming sound from the right speaker during bright scenes with large colour squares, for example netflix cartoons, commercials or news bulletins with (partly) animated screens. The strenght of the humming sound is influenced by the brightness and colour of the screen and constantly changes in intensity and pitch. If you turn up up the volume you cannot hear it anymore but with low volume levels the sound is annoying. the dealer has exchanged the power board and all three icepower amplifier boards, no result whatsover. The dealer now claims his demo BV11-46 unit also has the buzz as well and is model specific, kind of a deadlock situation. We are not exactly whining about it for fun, the humming sound is just too annoying during some programs. To all BV11 mk1 owners, could you do me a big favour and play a (netflix)! cartoon with bright colours and check if any kind of buzzing humming is audible from the right speaker? Many thanks, your help is appreciated!
Are you sure this is from the speaker ? My old BV7-40 had the humming, also based on the brightness and color of the scene. B&O claimed bad Samsung panel, and exchanged it with a new panel, that helped a bit, but never to an extend where I was happy with it. This seems to be a problem with the Samsung panels used at that time.
/Jacob
I cannot check with Netflix because I don't have it, but I can assure you that I cannot ear a buzzing/humming of any kind on my parents BV11-46 MK1.
I have a MK2 and it's also dead silent.
Of course if you stick your ears on the speakers there's always a white noize of some sort but I believe it's not the point.
And I'm very very picky with those things.
@jacob, yes, 100 percent sure the sound is from the right speaker. The dealer confirmed that by disconnecting the three icepower amplifier boards, no sound obviously but also no humming! This was the lead for the dealer to exchange these boards but that didn't help at all.
Beogreg, thank you very much for your reply, very helpful. Let me clarify the dealer is really helpful but just started to think this quirk belomgs to the model. This info hopefuly can convince him our unit is just faulty and we need to look for other solutions (exchange).
we are not even real picky customers, the humming sound is just so explicitly present during certain kinds of television programs.
hopefully more BV11 mk1 owners are willing to chime in, naturally mk2/3 input also very welcome. Thanks agian all !
I have a 11-55 MK1 and no buzzing whatsoever. Unfortunate that B&O could not find the issue but I very much doubt this is a common issue with MK1s, but rather a manufacturing issue with your specific TV. Otherwise we would have heard a lot of complaints on here.
BV11-55, BS9000, BL1, BL19, Transmitter 1, Beo4, Beocom 6000, BeoTalk1 200, Sennheiser HD600, McIntosh MHA100
BV11-40 mk1.
No speaker hum or noise... including bright colourful cartoons on Netflix.
Graham
Checked at the moment on Mk2 with youtube and a video called 10 hours of white screen + room adaptation off ( so picture very bright).
No buzzz or hum appart the very low permanent white noize on each speaker. Sound muted or not.
Thank you very much gentlemen, so our unit is just faulty, it already seemded impossible B&O would allow this humming as a model specific "feature" . I will get in touch with the dealer soon.
anymore input still appreciated!
Well finally this problem is solved!!
An external repair company ( Wessels Audio Video service) brought us a visit ans after some extented troubleshooting they found some faults in cable routing causing the interference. Once the cables were rerouted, annoying backround noise/humming was gone.
many thanks to engineer Mr. Saeed Ahmed who was able to fix this after many other people did not succeed.