Question Samsung JU7500 buzzing/humming noise

BorisDG

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I am on my second of these and both have had slight vibration on the metal frame so I assume it's normal. It's very much just a vibration and does not shock or spark or anything like that.
Hello. I bought JU7500 week ago and I've noticed it that too. Also I have slight buzzing/humming noise coming from the main circuit board (where are the connections) - sounds like coil noise. It's only noticable when I put my ear there and the sound is muted. When the TV is "relaxing" is not that noticable. Probably all of this is normal and I should keep it? After all it's in waranty. Can someone with same model share his situation?

Thank you very much.
 
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There will always be some and if you can only hear it that close then I can't see a problem.
 
I'm uploading audio file. Sorry about the quality, but it's recorded with Samsung's Voice Recorder:

Buzz noise

Sounds like "scratching". It's not non-stop like this. It stops and it's starts. Caught be related to CPU load.
 

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