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Beolab 4000 not working

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AndyD posted on Sun, Oct 24 2021 7:01 AM

Hi chaps, I've had a look at some of the Beolab threads as I have a fault with one of my 4000s.  They were new in 2007 (model with LED as a light rather than a button/switch) & are linked to a pair of Beolab 8000s, which is all set up ok.

A while ago my wife heard a low pitched pop from one on start up, result that there's no LED illuminated, no signal or sound.  I've checked the mains lead & Beolink cable & they're ok.  Not sure if the problem is due to the dreaded foam issue or maybe an internal fuse that's blown.  Any advice or thoughts from anyone who's had a similar experience gratefully received.  Thanks.

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Bw789 replied on Sun, Oct 24 2021 10:21 AM

I’ve checked the service manuals on Beoworld and they have one for the 4000 mk2.

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If they are from 2007 they should not have the foam issue. 

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Emil replied on Mon, Oct 25 2021 10:28 PM

It might be the amplifier or amplifier board that needs to be changed. I had a problem with mine with a static or crackling noise (not completely silent as yours though). Understood from the repair shop that it was not an uncommon problem.  See this thread also

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