NTP schematics?

[gyraf]

1/2Ub+ is NTP's half-supply-voltage reference point, for working on single 24V supplies. Do NOT confuse with ground, as this usually kills a M100 opamp.

Jakob E.

 

[DerEber]

Ok good warning!
So I have a lot of good refereces on the connector  ;D
It is supposed to be used with an +/- supply then.

 

[mjrippe]

Attached is the 179-270 schematic.  There is some sort of strapping for +15dB or +5dB in the upper right corner.  Might be of interest...

 

[DerEber]

Hey,
Those schematics are indeed very helpful.
It seems to be more like the 179-250b
I can find similaritiys to this on my board.
So I could figure out there is the LED implementation.
I am also having the same Stereo control and meter output.
I´ll have to check out how to connect the units for stereo mode. Simply connect the points? I search here later.
But thats it. No other options for this on the connector. So no limit control.
But I accidently misscalculated the max output level. It´s only +15dbu 

And I am not getting the circuits right now, But I keep on stearing at it
;D
more later.

Thanks for your kind help.
DerEber

 

[DerEber]

Hey,

Ok if anyone will need the pinout of the 179-280. I can help out now.

Maybe someone can take a quick look at the 179-250 Schematic
http://groupdiy.com/index.php?topic=46971.msg613885#msg613885

Wouldn´t I need a diode or anything for conecting the Stereo Control voltage of two units like this?
Simply conecting 2 units well tye 2 LM310 outputs directly together.

best,
Stephan

 

[DerEber]

All I can say is that they are running and sounding quite good!!
Stereo is working too.

best Stephan

 

[alexmartin]

Hello my friends, original  post is from 2006 and all images are gone. I got a pair or those euro cards, so I'm looking for 179-400 manual and or schematics. If anyone sends it to me I'll take care of creating a link here for sharing.
cheers
Alex

 

[scott2000]

There is a Technical Documents area here on the main page above all of the threads... Maybe something in there...

https://groupdiy.com/index.php?topic=46971.0

 

[alexmartin]

Ok found it in another thread!

 

[alexmartin]

There is a Technical Documents area here on the main page above all of the threads... Maybe something in there...

https://groupdiy.com/index.php?topic=46971.0

Gold mine! thank you