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My Behringer 2500 wat pa amp keeps getting hot and cutting off

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Step 1:

Overheating is typically caused by poor ventilation. The best thing is to make sure that you --

Step 2:

have plenty of space ALL-AROUND the amp

Step 3:

Fan(s) are working correctly (should always be on).

Step 4:

Boards are clean -- may require opening up housing and spraying with compressed air.

Step 5:

Be sure that the speakers you're pushing are acceptable to amp's output.

Step 6:

If still overheating, may require service.

Posted on Jan 16, 2013

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Posted on Jan 02, 2017

  • 5603 Answers

SOURCE: I own a Behringer Ultratone

This is most LIKELY an electronic problem... possibly in the final power amp. Repair may be a simple failed component or a mass number that fail like a stack of dominos. Take it to a shop for repair.

Posted on Apr 16, 2011

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Power light is on but no speaker output?


Disassemble it enough to get to the speaker to check for continuity. If it's blown, replace it, If not, the amp board is probably blown and needs to go in for repair.

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Bass went out


The 15 inch woofer is blown and you are hearing only the tweeter horn. I would definitely check that speaker on something else though, because the amps inside will also blow fairly easy, and you can't get parts for these. I would salvage what you can and move on. If both speakers work alone, check connections and amp. If you find that the 15 does work, then make an unpowered monitor. Behringer does not give any referencing of any parts. They have all special part numbers that you can't crossreference to find replacements. This is a marketing strategy to eliminate others from repairing, so you will buy another one. They think they would sell more but it just turns musicians away from their junk. The only piece of behringer equipment worth using is the FCB1010 controller and nothing else.

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I have a Behringer PMP 6000 powered mixer. Channels 4 & 5 yellow overload light is constantly lit. No sound from either channel (just a faint hum when volume slider approaches max level...


There are NO "yellow" overload LED's period. The clip or overload RED LED's are just above the PFL buttons for selecting a solo channel. There are "yellow" signal received lights (level set) up near the trim controls. In normal operation these will light when signal is received. Here is schematic for the PMP5000 which is really identical for the 6000.
http://elektrotanya.com/behringer_europower-p0569_hca2400_sps1000_dpx_pmp-1280s_5000_sch.pdf/download.html This has part of the DSP and PS and the PA circuits.
Scroll down to "get manual" and click on it to download. Ignore other download links on the page.
Try turning off the Phantom power if it might be on... If that stops the hum, something is the matter with the bypasses feeding Phantom power to those channels... Possible problem might be shorting of one of the coupling caps at the preamp input. The PMH5000 drawings are more accurate at the input circuits. You will note that the level set LED's are the yellows, and the clip/PFL LED's are the red ones. I suspect that RF bypass caps such as C110 or C121 (example typical for channel one) might be shorted. This makes noise on the Phantom power line unbalanced and will get into the channel where one of these caps is shorted. Do a test: Plug a shorting jack that shorts the tip to the sleeve intot he inssert for the channel. With the LOW CUT button up, observe is the level set LED for that channel dims or goes out. If it does, then I supect you have a shorted RF bypass cap at the input..The next test involves driving a KNOWN balanced signal into the XLR jack and using a TRS in tthe inout 1/4 inch, test the levels with an oscilloscope to verify the hot and the return have equal amplitudes. I they don't, congratualtions you have to tear the main board out... lots of knobs and screws to access the inout circuits and verifuy the cause... it could ALSO be a bad transistor in the inout pair, etc...

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I own a Behringer Ultratone K3000fx 300 watt PA/Keyboard Amp that stopped putting sound out. The amp is getting power just not putting out any sound at all. Just wondering if this is an easy fix or I...


This is most LIKELY an electronic problem... possibly in the final power amp. Repair may be a simple failed component or a mass number that fail like a stack of dominos. Take it to a shop for repair.

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Where (on-line) can we find download for advanced manual for Behringer PMP 4000 16 channel powered mixer? What we found on-line was the exact manual that came with the mixer.


There really ISN'T and "advanced" manual... Everything you need to know is in the user manual that comes with it... Service manual with schematics will not give you much you can use unless you are into electronics detail.

PLEASE read my tip about Behringer PMP mixers on here regarding a hazard if you use Speakon to 1/4 inch cables or adapters. Essentially, the sleeve, NOT the tip is the HOT lead for a speaker on channel A. Ground it inadvertently and goodbye channel A amp.

Be VERY careful of speaker leads with this amp as it is easy to pop a channel IF a speaker comes loose or shorts. Loop cables through the handlesto avoid cables being yanked out or breaking plugs.

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Does anybody have a schematic for the Behringer LPA1300 power amp section used in the K3000FX keyboard combo? Are the output devices supposed to be the ground path for the power amp. (there are no...


Look at this one:

http://elektrotanya.com/behringer_k1800fx_sch.pdf/download.html

This is for the 1800 however...

Often they will just double up with two amps, one inverted, and use in bridged mode.at the higher power in what we call an "H" arrangement.

Since the drains are tied together, the heatsinks MIGHT be hot output level.

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Will a Behringer UB2442fx-PRO run 2 main PA speakers plus two passive stage monitors without blowing up?


ALL the speakers will either have to be POWERED or have external amplifiers. The mixer has NO power amps capable of driving speakers. When connecting, make sure that the mixer is powered by the same receptacle as the speakers or amps. Used balanced line for interconnection.

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