Question about Behringer EUROPOWER EPX3000 Stereo Power Amp

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I need a service manual with a circuit diagramme to repair one of these with an input circuit fault.

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GO ONLINE AND CHECK BEHRINGER EUROPOWER EXP3000 STEREO POWER AMP. YOU MAY GET SOME HELP THERE.

Posted on Mar 23, 2011

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I need a service manual for my Behringer BX1200. No power at all. I think it's the transformer, but have no specs to check and the schematic doesn't show the power distribution!
Help Help!!!!

Posted on Dec 31, 2011

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How can I fix it?


If it only works in certain positions then the normal fault is that the solder connection breaks on the circuit board and will need to be replaced.

Locate the circuit board DCIN and unsolder socket and replace, check the solder tabs on the circuit board as these sometimes breakaway. You will need to bridge these along the track if they are damaged.

https://www.beckettsmusic.co.uk/shop/scripts/prodView.asp?idproduct=17018



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Apr 03, 2016 | Yamaha YDP-135R Arius Digital Piano

1 Answer

I have four 200b lights that i must have connected to a wrong device and all 4 blew fuses. I replaced the fuses but they continue to blow as soon as I plug them in.Any suggestions would greatly appreciate.


first need to know if the other device you connected it is with dmx and if not, the most likely need replacement on the circuit 8 pin controller dmx its easy to know the locate its the circuit most close to the input signal, I hope you test the input volt regulators and are well, if not also need more data presents fault.

Feb 16, 2013 | Chauvet (2) Chauvet Ledsplash 200b Dmx...

1 Answer

Peavey dpc1000 service manual


Don't do what Fred said. this is a complicated switch-mode amplifier - you'll need to pass it to someone who knows these.
after you recplace the obviously burned parts, you need to run it up in test mode and go through the test procedures until you find the other faults that caused it to fail.

Jan 24, 2013 | Music

2 Answers

Low volume on my marshall


I am very new here and don't know how to answer a question to a specific problem so I will write about the most common problems that I have had over the decades doing guitar amp repairs. If you find that your amp is extremely low in volume and then suddenly comes back to normal- check out the effects return [or power amp in] jack. Especially in Marshall amps-these corrode and your signal dies. If there is loud noise such as hissing and crackling with no guitar patch cord in the input jack- the input jack is likely at fault. They normally have switching contacts that ground part of the input circuit when the 1/4 inch male plug is disconnected. When this in is corroded or too weak to make normal contact, you can get these symptoms. If your amp is a solid state Marshall or Fender and there is a random buzzing sound with no guitar signal connected- hit the side of the amp and listen for the buzz to go away or become louder-if it does, this usually means that the connections are loose at the two large filter capacitors. In one or more Marshall amps, they use a filter circuit in the low voltage power supple for the preamp tubes. If you encounter a dead Marshall[the model escapes me now] remove the circuit board and resolder the four connections at the bottom of the bridge rectifier. If you have any other amplifier repair questions you can email me direct at computerlen@hotmail.com.

Nov 14, 2011 | Marshall Mg100dfx 100-Watt Combo Guitar...

1 Answer

Hi, I need the pmp5000 schematic or service manual. Because my mixer smps is faulty.. (On the smps pcb following parts are problem : T12 - D24 and 25? R11 open - D6 and D9 are short - TOP221 ? ) Best...


Oh yeah... know them well The IGBT transistors fail, the sand coated resistors blow open... replace as a pair. The driver transistors get blown... 2SA1020's and 2SC2655-Y's. One or more of the gate speedup diodes for the IGBT's get blown. The switching reg chips, IR2153 is usually gone. and more...

Here is your service manual: http://elektrotanya.com/behringer_europower-p0569_hca2400_sps1000_dpx_pmp-1280s_5000_sch.pdf/download.html

Scroll down to "get manual" and click to download. Ignore other "download links".

You will likely find that one of the power amps has shorted... been there, done that several times. Usually the channel A (rearmost) power amp shorts takeing out the 9140 Mosfets and other parts. Often an internal short between an interior and upper layer of the amp circuit board is the fault that causes all this. Use a light bulb (150 watt) in series with the power input when testing after repair. Use an isolation transformer when working on the supply for personal safety. When supply is running again, discharge the 70 volt source caps before plugging onto the amp to avoid welding arcs at the connectors. I have seen the supply hold charge for several days.

Jun 29, 2011 | Behringer Europower Pmp5000 Powered Mixer...

1 Answer

How do I replace the fuse on a Mackie SRM 350 v2?


The fuse is inside and is to be replaced ONLY after you repair the cause of it blowing. Additional damage may result if repair is not made first. Power it up with a 150 watt light in series with the power cord as a resetting fuse. When light remains out, unit should be good.

The fuse is mounted on a circuit board behind the power input connector.

Here is a link to a service manual that is probably close to your unit:

http://elektrotanya.com/mackie_srm450_active_speaker.rar/download.html

Scroll down at the web page to a small link that says "Get Manual" Click on that and after download unzip the file... it is free... ignore the winrar thing...

Apr 01, 2011 | Mackie SRM350V2 POWERED SPEAKER

1 Answer

Hi all i own a behringer XENYX 802 audio mixer. this device is powered by a power supply that as input to the mixer gives 18,5 x2 Ac, 150ma. i would like to know in which point of the circuit i can...


You would need TWO DC supplies as they use AC so they can create both a plus and minus 15 volt power source to run the internal op amps.

Here is a schematic for the 1202 which has same power supply configuration as the 802.

http://elektrotanya.com/behringer_xenyx_1202.pdf/download.html

Scroll down to the little link "Get Manual" and download the service manual and schematic. You will find the power input in the upper left corner of page 5.

Mar 29, 2011 | Behringer Xenyx 802 8-input 2-bus Mixer W/...

3 Answers

I got a Marshall MG100HFX Amplifier for guitar. The problem is that whenever i turn treble switch on it gives clean sound as it should, but in couple seconds it fades away. When I turn the switch again it...


I haven't played or worked on a MG100HFX but I understand amp circuits very well. The behavior you are describing sounds to me like a bad capacitor in the Treble circuit. This is a problem that would require the skills of an experienced amp tech. If you are within your warranty period you might want to return it. If not, a good local repair shop should be able to diagnose the problem.

Good luck and keep rockin'!

Mar 01, 2011 | Marshall Amplification Marshall MG100HFX...

2 Answers

I get no sound at all when I plug in to the input and its not my lead or guitar, how can I fix the amp?


This is probably not a DIY repair. You best take it to a repair shop. Likely the power amp has failed or other common problems are broken connectors/jacks, broken volume pots, and finally circuit board cracks.

Nov 20, 2010 | Fender Frontman 212R 100W 2x12 Guitar...

1 Answer

Where are the input and output of the microphone in the mixing consol yamaha mg8/2fx???? i need a diagramme or shema


Email me and I will send you a link to download the SM. The file is nearly 12Mb. Put MG82 in the subject line.

Sep 29, 2010 | Yamaha Music

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