Beovision 7-40 Mk 4 – strange tone

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30 October 2022 at 08:16 #10406
carlos99
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Hello

I have recently carried out some repairs to my BV7, including a Power Board and an Optical Drive … all is working well.

There is one thing though, when playing a disk there is a tone coming from the set … not the speakers, it’s from inside the set. The tone is around the 200Hz range. I can’t recall this tone being present prior to the repairs. That said, when switching between sources the same tone has always been present, also when initially setting up my Apple TV, with some input setting incorrect I got the same tone, this was easily resolved, but I can’t figure out this new issue.

Anyone have any ideas?
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