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Reset the protection because the light keeps burning

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Amplifier protected LED on. what to do


Take it to the repair shop. Something is blown.

Apr 26, 2015 | Music

2 Answers

Bm5a blows fuse when turned on


Blowing a fuse means that it has a dead short. The fuse does its job by protecting the other components while the circuit fails. Something is definitely burned out inside.

Mar 24, 2014 | Dynaudio BM5A Active Monitor

1 Answer

How to set onboard fx processor


Which clip light on what and what mics are you using?
The small room settings are from 10 so just turn the know to the setting you require and press it, this should set it.

The stadard way of setting up mics is to set the channel gain so the channel clip light just blinks occasionally when you are making the maximum sound you can into the mic.

For effects repeat this process using the aux send FX for each channel you want fx on (turn the rest to 0) and doing a balancing act between these and the aux send fx master so you can only just get the FX clip light blinking occasionally.

Next set your gain/attenuators on the amp(s) so its clip warning can just trigger when you are giving it 0db when you are playing the loudest you ever will.

A mic fading away could be the battery dying (in which case try using phantom power) or if they're radio replace the batteries before each service. If they're wired dynamic mics then it is possible there's some protection circuit somewhere that's reacting to the constant clipping and backing off the amp.

Mar 22, 2014 | Behringer XENYX 2442FX Mixer

1 Answer

I have a Crate CR212 it started to hum/buzz today. It would not play out any sounds other than the noise. I unplugged everything and still it hummed. I unplugged the unit, check the fuse and replugged and...


Are all the tubes lighting up? they should glow like dim light bulbs. If not, replace them with the same model type (12ax7, or EL34 for example).

Often there are two fuses, one to protect the speaker and another to protect everything, it sounds like the latter fuse may be burned out. take it out and take it to radio Shack for exact replacement.

Oct 12, 2013 | Crate Music

1 Answer

How do i get parts for behringer b215d my power ic is burn out


Regards, urgent help.

I have a powered speaker Class D, and the PWM isdead. change the IC 3525, is controled by a NE555 which is shutting down. works when connected to a higher voltage 150v, but turned it off, I think by overheating. I already changed mosfets, and ICs. I think that may be some component failure is triggering the protection, someone could help me. I'm a musician and I depend on this car for my livelihood. Thanks

Jan 06, 2012 | Behringer B215D Powered Speaker (550 Watts...

1 Answer

The "PROTECT" light indicator came on and now the


The protect light generally comes on when the is a short in the speaker cabling. as a test, turn on the mixer without any speakers hooked up. If it still goes into protect mode the problem is in the mixer. Take it to your local music store and have their tech look at it. if it doesn't go into protect, check the speaker cables by plugging them in one at a time. The bad one will send it into protect.

good luck

Sep 12, 2011 | Fender 150 Watt PA System

1 Answer

I plugged what i assumed was the correct transformer into my micro br and after a burning smell it died .obviously now i realise it was the wrong one ! unit does power on by battery still and works ok .is...


This was probably supposed to have a 5 volt power adapter... you burned up either:

1. Regulator
2. Circuit trace on the board
3. Protection diode
4. resistor ahead of the regulator.

Repair should not be too bad if they know exactly what you had connected, Make sure to use a competent shop.

May 06, 2011 | Roland Boss Micro BR Multi Track Recorder

1 Answer

I have the old 3way 600 watt pa speakers x 2,which amp would you suggest, for this speakers.Because I m having trouble with my amps,that keep on clipping and burning out.


DO NOT run amps into clipping. Also, while the speakers are rated at 600 Watts, you don't want to use an amp that delivers that much RMS. Use about 300 Watts per side. Unfortunately you did not mention the brand of amps you are using. I will also caution you that the speakers have protection networks that if you are getting supersonic feedback that you can't hear that can burn out the amps. DO NOT boost the highs if the mics can "hear" the speakers or the reverberations from them. Solid connection of speaker cables is important. Intermittent connections can fry amplifiers... I won't go into the technical reason for this other than to say the amp's feedback circutis get confused when the load shifts.

You might also have the speakers checked since they can have an intermittent that is popping the amps. If you happen to be using BERHINGER PMP amps, please read my tip about the grounding hazard where the sleeve of channel A is hot and the tip the cold that I have in the Fixya tips.

Mar 25, 2011 | Peavey New Peavey Sp3 15" 3 Way PA Speaker

1 Answer

When i turn on the brand new double derby it works for 2 seconds and then goes off, what could this be and how do i fix it please Lily


It is probably in the wrong mode. Since the light can be set for automatic, sound, and DMX we have NO idea what mode you are trying to run. Refer to page 8 and 9 in your manual for correct dipswitch setting for whatever mode you are running.

For eye protection, the lights must keep moving or they will shut down... which is likely what is happening in your case. If you put in auto mode or sound mode they should keep on. If in DMX mode and the mode does not command movement all the time, they will extinguish.

Mar 13, 2011 | Chauvet 2) Chauvet Double Derby X Dmx Led...

1 Answer

My transformer is burned.Now I need to know what the secundairy voltages are


Transformers USUALLY don't get burned as they are usually protected by a fuse. This one supposedly uses a 3 amp fuse which should have protected it from getting burned. If you can find a schematic or if you can find the specs on the output amp power supplies we can probably calculate the voltage of secondary. We know only that it is supposedly 120 Watts and uses an 8 ohm speaker. The RMS voltage should be about square-root 120*8 = sqrt 960 = 31V*1.4 = approx 44 volts peak... so you will need to get about +/-45 volts out of the supply for headroom... which will need approximately 34 volts AC given diode drop and droop of filter caps. These are really rough educated calculations from the tiny bit of info we have.
Finding a transformer to replace this matching these requirements will be near impossible without getting device from the original manufacturer OR having your rewound.
I would first verify the transformer is bad (only plausible cause is somebody over-fused it or a winding shorted)... Remove all the secondary loads. Put a 3 amp fuse in AND put a 60 Watt light bulb in series with teh power cord to act as a limiting device to test the transformer... Note that transformers DO have a bit of odor as they are usually impregnated with a varnish...

Jan 11, 2011 | Hartke Kickback 12 Bass Amp Warehouse...

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