ADR Rack Power Supply - need help on defining output connections

[musika]

Hello,

I could use some help defining output connections on my ADR Power Supply.  Top cover I think has this labeling, which did not come with my unit.  Does anyone have schematics that would show this, or can someone please tell me which screw terminals are +28v, -28v, 0v, 48V , Ground??

Thanks!

 

[musika]

here's a photo of the unit...

 

[musika]

and the front side....

 

[jwhmca]

ummm.... what am I missing? Can't you just measure the outputs?

 

[musika]

Well I did measure, but shows 0V across the board. I thought I was missing something. All the fuses seem Ok when continuity tested.

 

[fazer]

Do LED's light up on face plate?

 

[musika]

The only LED that fires up is the 48V.

 

[mjrippe]

Fuses can be fine if there is no power going through them ;-)  LEDs may or may not indicate what is going on.  You need to trace voltages in and out of the transformer, then through the diodes/rectifier bridges, regulators, etc.

 

[musika]

Thanks for all the replies. 

I did notice a ~350mA reading on the one terminal second from right.  I'm not sure I can do the tracing, but if I had the layout, I could get some help.

Does anyone have the schematics for this power supply?  I'm not even sure if there is any model number.... just ' rack mounted ADR Scamp Power Supply '. 

I've searched forums / the internet and haven't come up with much about this unit.

 

[Youngwhisk]

I found and posted some Scamp power supply information into the technical documents section. I am not sure if it directly applies to your power supply but it may help.

http://groupdiy.com/index.php?topic=56151.0

 

[musika]

This is great!  A little hard to read though.  I see some of the same part numbers.

Could you please email me a higher resolution of this documentation. 

I tried to download from that website before without success.

[email protected]

 

[Youngwhisk]

Sorry, I got it from that site. I don't have anything better.

 

[musika]

Found a photo of the top panel on Ebay showing the connection descriptions... now I need to fabricate one for my supply.

http://www.ebay.com/itm/Scamp-Rack-mount-power-supply-28-and-28V-/111144924967?pt=AU_Pro_Audio&hash=item19e0c0f727

 

[mjrippe]

Nice!  I have downloaded more than a couple schematics from ebay auctions  ;D