Bruel & Kjaer 2203 service manual - diyAudio
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Old 10th February 2010, 11:13 AM   #1
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Default Bruel & Kjaer 2203 service manual

Hi there,

Has anyone got a service manual for a Brue & Kjaer Sound Level Meter?

Cheers

Alex
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Old 12th August 2011, 09:32 PM   #2
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Default Bruel & Kjaer 2203 service manual

Alex-

Did you ever find a Bruel & Kjaer 2203 service manual? I'm looking for one too. My 2203 measures about 20 db low, I suspect the polarization voltage is the problem. Did you fix your meter?

Thanks,
Mark
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Old 12th August 2011, 09:53 PM   #3
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Precision Sound Level Meter 2203 Radio Brel & Kjr; Nrum
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Old 21st August 2011, 07:58 PM   #4
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The schematic on Radiomuseum.org is for the tube version only. Does anyone have the FET version?

I noticed there's a quick disconnect connector on one of the wires that may be associated with the 200v polarization voltage. Does anyone know the purpose of this? Is there a reason to disconnect the polarization voltage for some microphones that can be used with the 2203? Or is this some kind of test mode?
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Old 21st August 2011, 09:15 PM   #5
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Quote:
Originally Posted by rumreich View Post
The schematic on Radiomuseum.org is for the tube version only. Does anyone have the FET version?

I noticed there's a quick disconnect connector on one of the wires that may be associated with the 200v polarization voltage. Does anyone know the purpose of this? Is there a reason to disconnect the polarization voltage for some microphones that can be used with the 2203? Or is this some kind of test mode?
Not all mics require the voltage. I found both versions when I looked!
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Old 16th September 2011, 03:57 PM   #6
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HI chaps,
I wonder if any of you ever got hold of service information for that B+K 2203 Sound level meter?
I have contacted B+K this week and they no longer support this model , neither do they have any remaining service data for it...:-(
The serial number of my instrument is 887512 making it a later NON thermionic tube/valve input device.
Looking inside the pcb's are littered with silicon transistors and a couple of what look like op-amps.
Can anyone supply me with the correct service data for this model please?
Thanks in anticipation
Dave
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Old 1st November 2011, 04:21 PM   #7
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Hi,
I now have a free copy of the B+K 2203 service manual in .pdf format if anyone is still looking for it!
Dave
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Old 8th November 2011, 07:44 PM   #8
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Hi Dave,

I almost forgot about this, and I'd love to have a copy. You have a Private Mail from me!

Alex
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Old 9th November 2011, 09:36 AM   #9
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Hi Alex.
no problem how do I get a direct email address to send it to.
Dave
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Old 9th November 2011, 01:55 PM   #10
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Hi Dave,

If you look at the top right of the diyaudio page, just under "welcome, davebullock" there is a link called Private Messages, and you should have 1 unread from me.

Alex
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