Neumann NS 424 schematics/manual

[phenomental]

Hi Folks!

I got myself a NS 424 power supply unit by Neumann from ebay.
Sadly I got no manual.

Does anyone have a wiring diagram or knows which pins get the 230V ac and let out the 24V dc?

Big thanks in advance and a happy christmas to all of you!

 

[echorec]

Don´t have the manual but it should be very easy to figure out if you open up the unit.

 

[moqtev]

Hi Pheno...

On the input pins on the left of the backside pin 58 and 54 is 220V 50Hz and pin 61 is ground (Schutzleiter)

On the 31 pin connector on the right backside pin 31 is 24V+ and 29 is -

Hope you can understand this

Morten

 

[phenomental]

Thanks Mort and echorec,

a phone call at the german Neumann Mischpultservice "AudioSonic" - extremely friendly people there BTW - in Berlin helped me: the NS 424 gets 27,5 V AC.

So I built a power supply (glad to find a transformator) with 25 V and it works fine now.

If anyone needs the pins let me know.... :green:

 

[Soufis]

Thanks Mort and echorec,

a phone call at the german Neumann Mischpultservice "AudioSonic" - extremely friendly people there BTW - in Berlin helped me: the NS 424 gets 27,5 V AC.

So I built a power supply (glad to find a transformator) with 25 V and it works fine now.

If anyone needs the pins let me know.... :green:

..and after 17 years since you posted here, I am interested for the pinsout of the NS424