Bruel & Kjaer 2639 Service Manual - diyAudio
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Old 10th April 2012, 08:10 PM   #1
lvigone is offline lvigone  Italy
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Join Date: Oct 2007
Location: North of Italy, in the hearth of rice fields
Default Help: I'm desperately looking for Bruel & Kjaer 2639 Service Manual

Does anyone have a copy of the B&K 2639 mic preamplifier service manual?
I need the schematic to repair a faulty unit.

Many thanks.
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Ciao,
Luigi

Last edited by lvigone; 22nd April 2012 at 03:02 PM.
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Old 23rd April 2012, 08:15 PM   #2
lvigone is offline lvigone  Italy
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Join Date: Oct 2007
Location: North of Italy, in the hearth of rice fields
Default Help: I'm desperately looking for Bruel & Kjaer 2639 Service Manual

Service Instructions found.
Thanks to a very kind german company!!
__________________
Ciao,
Luigi
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Old 6th May 2012, 01:18 AM   #3
m2003br is offline m2003br  Brazil
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Join Date: Dec 2004
Location: Sao Paulo
Hello Luigi,

I would be pleased if you send me a copy of the 2639 manual, for my personal collection.
For your repair, if you need, I'm glad to help you.

Thank you.

Kind regards,

Marcos
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Old 6th May 2012, 02:47 PM   #4
lvigone is offline lvigone  Italy
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Join Date: Oct 2007
Location: North of Italy, in the hearth of rice fields
Hello Marcos,

please, PM me your e-mail and I will send you B&K 2639 service instruction.
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Ciao,
Luigi
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Old 25th May 2012, 09:32 PM   #5
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Location: Malibu, CA
Hello Luigi.

I would also be very grateful for a copy of the B&K 2639 Service manual (I haven't yet figured out how to get the case open without damaging it!!!!).

Thanks,
Chris
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Old 18th June 2012, 10:18 AM   #6
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Join Date: Jun 2012
Location: Gorzow Wlkp
Hi Luigi,

I would also ask about these service manual - I have problem with noise at low levels, and I would like to look into, but also I don't want to damage it.

Best regards
Andrzej
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Old 26th September 2012, 08:42 AM   #7
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Unhappy B&K 2639

Hi, I also have 2 of these preamps that are not working, and I
Am uncertain how to open them up. So a service manual
Would be really handy. Do the bodies separate in the mIddle
Please help.
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Old 4th October 2012, 01:42 PM   #8
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Join Date: Jun 2012
Location: Gorzow Wlkp
Hi Drifter, I also have 2645 preamp which is simillar to 2639 - I'm also wondering how to open it, but I'm pretty sure that it doesn't open in the middle (i use microscope to look at the case ).
I think that on the bottom side - black cover is screved to the body - but I'm not sure
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Old 13th August 2014, 08:11 AM   #9
arni is offline arni  Iceland
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Join Date: Sep 2004
Location: Sweden
Default Opening 2639 preamplifier

This is an old thread, but this information can be helpful for anyone meddling with Bruel & Kjaer microphones.
The case is opened in the middle, but screwed clockwise to open (reversed thread). The metal is very soft, so be careful. I usually wind a cable around the housing to get a grip, but if that is not enough you should drill a hole in two wooden blocks and split them, to make a secure and soft grip. B&K have special pliers for this purpose (WA 0327), but I assume those are not cheap.
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