Wanted: Behringer Europower EP2500 Schematics

steve_v · 23rd September 2011, 08:26 AM

I have sheet 1 of 3, anyone got the rest?

Cheers,

Steve.

jhworkz · 30th September 2011, 12:31 PM

good day ,.TRY AUDIO CIRCUIT DENMARK

Enzo · 30th September 2011, 11:33 PM

And Electrotanya

And when you google it, don;t stop at the first page, sometimes what you want doesn't turn up until page 5 or 6.

thejohn · 1st October 2011, 05:28 AM

Hi Steve, Hope this is what you're looking for...

steve_v · 30th October 2011, 07:10 AM

Thanks muchly, but still no joy getting the thing to go.

Seems I still have no +15v rail (after replacing the obviously cooked parts in the muting / thermal circuit)
It would appear the +15v rail is being pulled down somewhere but buggered if i can find it.

Anyone worked on one of these?

daviddavis · 23rd June 2012, 01:02 PM

I'm working on one now, where the main power transformer has died. I know this because (a) the primary mains winding shows under 0.02 milli-ohms on my low-res ohm-meter (that#s about as low as it'll reliably read), and a 60 watt light bulb glows strongly in series with the AC mains input. Does anyone know where I could get a spare transformer for little money? It has four separates secondaries of 0-55-110 volts each, a rather strange design but I can see why it was done.

eccentricload · 9th September 2012, 06:33 AM

hi daviddavis, have you tried powering up , without the load on the transformer?

djk · 9th September 2012, 11:14 AM

15V problem?

Did you check the zener diodes and the opamps?

wg_ski · 9th September 2012, 03:38 PM

Quote:

Originally Posted by daviddavis

Does anyone know where I could get a spare transformer for little money? It has four separates secondaries of 0-55-110 volts each, a rather strange design but I can see why it was done.

You get one from another amp that everything else is blown up in except the transformer. You need the exact winding configuration or it won't work. Good luck with that, other than something designed for a similar amp - and they will probably want $300 for it. The closest possible off the shelf kludge would be *four* 40-0-40's (55/110 is the DC voltage), and that probably won't fit and will still be expensive. If you were cloning the amp, and could get 40-0-40's cheap that's how I would do it.

23rd September 2011, 08:26 AM	#1
steve_v diyAudio Member Join Date: Sep 2004 Location: Dunedin	Wanted: Behringer Europower EP2500 Schematics I have sheet 1 of 3, anyone got the rest? Cheers, Steve.

9th September 2012, 11:14 AM	#8
djk diyAudio Member Join Date: Feb 2001 Location: USA	15V problem? Did you check the zener diodes and the opamps? __________________ Candidates for the Darwin Award should not read this author.

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30th September 2011, 12:31 PM	#2
jhworkz diyAudio Member Join Date: Nov 2009	good day ,.TRY AUDIO CIRCUIT DENMARK

30th September 2011, 11:33 PM	#3
Enzo diyAudio Member Join Date: Sep 2004 Location: Lansing, Michigan	And Electrotanya And when you google it, don;t stop at the first page, sometimes what you want doesn't turn up until page 5 or 6.

30th October 2011, 07:10 AM	#5
steve_v diyAudio Member Join Date: Sep 2004 Location: Dunedin	Thanks muchly, but still no joy getting the thing to go. Seems I still have no +15v rail (after replacing the obviously cooked parts in the muting / thermal circuit) It would appear the +15v rail is being pulled down somewhere but buggered if i can find it. Anyone worked on one of these?

23rd June 2012, 01:02 PM	#6
daviddavis diyAudio Member Join Date: Feb 2010	I'm working on one now, where the main power transformer has died. I know this because (a) the primary mains winding shows under 0.02 milli-ohms on my low-res ohm-meter (that#s about as low as it'll reliably read), and a 60 watt light bulb glows strongly in series with the AC mains input. Does anyone know where I could get a spare transformer for little money? It has four separates secondaries of 0-55-110 volts each, a rather strange design but I can see why it was done.

9th September 2012, 06:33 AM	#7
eccentricload diyAudio Member Join Date: Oct 2009	hi daviddavis, have you tried powering up , without the load on the transformer?