Bruel & Kjaer 2203 service manual

The Chump · 10th February 2010, 10:13 AM

Hi there,

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

Cheers

Alex

rumreich · 12th August 2011, 08:32 PM

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

simon7000 · 12th August 2011, 08:53 PM

Precision Sound Level Meter 2203 Radio Brüel & Kjær; Nærum

rumreich · 21st August 2011, 06:58 PM

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?

simon7000 · 21st August 2011, 08:15 PM

Quote:

Originally Posted by rumreich

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!

davebullock · 16th September 2011, 02:57 PM

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

davebullock · 1st November 2011, 03:21 PM

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

The Chump · 8th November 2011, 06:44 PM

Hi Dave,

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

Alex

davebullock · 9th November 2011, 08:36 AM

Hi Alex.
no problem how do I get a direct email address to send it to.
Dave

The Chump · 9th November 2011, 12:55 PM

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

10th February 2010, 10:13 AM	#1
The Chump diyAudio Member Join Date: Oct 2006	Bruel & Kjaer 2203 service manual Hi there, Has anyone got a service manual for a Brue & Kjaer Sound Level Meter? Cheers Alex

12th August 2011, 08:32 PM	#2
rumreich diyAudio Member Join Date: Mar 2006 Location: indianapolis	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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12th August 2011, 08:53 PM	#3
simon7000 diyAudio Member Join Date: Nov 2008 Location: Oakmont PA	Precision Sound Level Meter 2203 Radio Brüel & Kjær; Nærum

21st August 2011, 06:58 PM	#4
rumreich diyAudio Member Join Date: Mar 2006 Location: indianapolis	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?

16th September 2011, 02:57 PM	#6
davebullock diyAudio Member Join Date: Sep 2011	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

1st November 2011, 03:21 PM	#7
davebullock diyAudio Member Join Date: Sep 2011	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

8th November 2011, 06:44 PM	#8
The Chump diyAudio Member Join Date: Oct 2006	Hi Dave, I almost forgot about this, and I'd love to have a copy. You have a Private Mail from me! Alex

9th November 2011, 08:36 AM	#9
davebullock diyAudio Member Join Date: Sep 2011	Hi Alex. no problem how do I get a direct email address to send it to. Dave

9th November 2011, 12:55 PM	#10
The Chump diyAudio Member Join Date: Oct 2006	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