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Beogram 6002 strange sound

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carle621
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carle621 posted on Tue, May 23 2017 9:11 PM

I just bought an old Beogram 6002 very cheap. I have tested it, and everything works beautiful except for a strange sound. 

I wonder if the sound problem is due to a worn pickup? or an electronic problem:

Generally most records are very low on volume. But f.ex.  one specific record has a normal volume on both stereo channels, but the artist singing is very low in volume, only the accompanied music has a normal volume (on both channels!). The pickup is a SMMC4. It is too costly just to buy a new one for testing purposes :-( so I hope somebody might have some experience with worn pickups.

Carl

 

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beo3000
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Answered (Verified) beo3000 replied on Tue, May 23 2017 11:20 PM
Verified by carle621

most likely the cartridge, and its likely to be the suspension of it, 

 

http://www.audio-origin.co.uk/retipping-stylus.html

 

This way you can have the pickup tested before the refurbishment anyway.

 

best of luckBig Smile

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beo3000
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Answered (Verified) beo3000 replied on Tue, May 23 2017 11:20 PM
Verified by carle621

most likely the cartridge, and its likely to be the suspension of it, 

 

http://www.audio-origin.co.uk/retipping-stylus.html

 

This way you can have the pickup tested before the refurbishment anyway.

 

best of luckBig Smile

MediaBobNY
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It has a relatively new Soundsmith SMMC4, not an old OEM MMC-4.  So I'd rethink suspension degradation.  The problem might still be with the cartridge.  You need to either test it out on another B&O turntable or put a known working cartridge in your turntable to compare the sound.  Depending upon where you are you might find a Beoworld member willing to assist.  If the problem is the cartridge you should try to find out when it was purchased. Soundsmith offers a 1-year warranty.  If out of warranty they will repair it for just 20% of the original cost - which is cheaper than any alternative.  

 

 

 

solderon29
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Does'nt seem like a pu problem.What amplifier are you using,and how is it connected to the turntable?

Nick

carle621
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solderon29:

Does'nt seem like a pu problem.What amplifier are you using,and how is it connected to the turntable?

Nick

No I don't think its an amplifier problem. I changed the DIN-plug into Phono-plugs and connected it to my Denon amplifier, same input as used for another record player. So it might be an internal amplifier problem in the beogram6002, but not externally.

Tks for reply

Carl

 

Dillen
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Dillen replied on Wed, May 24 2017 8:28 PM

carle621:

So it might be an internal amplifier problem in the beogram6002, but not externally.

There isn't one.
There are no electronics in the signal path in Beogram 6002.
There's the MMC cartridge, wires and the DIN socket. That's all.
(And a muting relay, but it cannot break the signals - merely short them to ground). 

Martin

solderon29
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As Martin assert's,there is no pre-amp in the deck,but the wiring between the pu via the arm etc is very fine wire which connects to a ribbon board,and then on to the output socket assembly

I had a weird problem like this once,where the signal ground was missing(no hum tho!)and the sound was sort of "out of phase" as you describe!!

.Does your '6002 also have RCA(phono) sockets,not all types did?

Are you sure of your connections into the new RCA phono connections?Can't go wrong really,but you never know?How did you connect the outer(chassis) ground connection?

The B&O pu will seem quiet through a third party amplifier,as they are obviously optimised for use with compatible B&O product.

Nick

 

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