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Protection light wont go off

Hello i was listing to my music and then turned it down and 2 minutes later my protection light came on and now it wont go off. I had music down very low so there was no risk of blowing amp. Can you help?

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  • Perry Babin May 11, 2010

    If it goes into protect with no speaker wires connected to the speaker terminals and no RCAs plugged in, it likely has shorted output transistors. Read through the following page if you want to try to repair it yourself. Let me know if you have any other questions.



    Basic Amp Repair Primer

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Try checking the ground cable it migth be loose.. this happen to me once and it was a bad contact ground make sure the area is clean and tigth

Posted on Mar 13, 2009

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Protection light came on what cut off


Amp in Protection - Troubleshooting - Basic Car Audio ...

www.bcae1.com/.../troubleshootingbasicsampinprotect.htm
Some simply shut down and the power light will not illuminate when in protect mode. If the power light blinks then goes off, the amp is either going into protect ...

How do I fix my amp it keeps going into protection mode ...

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Apr 24, 2013 - Uploaded by Nathan West
My MTX 600xd amp light won't even come on. ... Red light comes on. ... one.. and some times it goes into protection... once I turn the car off...

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1 Answer

Protect mode


Protection circuit.
Checek the wiring of the amp and speakers, don' forget to look for shorts at the speakers. Make sure no wires are touching each other

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1 Answer

Red protection light wont turn 2 green no matter what so the amp wont work


Hello mcis43fan,

The protection circuit can be activated by shorted or grounded wiring or it can be caused by a defect in the amp itself.

First, disconnect all wires except power, ground and the remote turn-on lead and see if the amp powers up normally. If it still goes into protection, the amp is defective, most likely shorted outputs and needs repair or replacement. If the amp powers up normally, test the other wiring for shorts and grounds. You can reconnect them one at a time to determine which one is causing the problem.

Hope this helps.

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2 Answers

Protection light comes on


Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Dou .A thumbs up would be greatly appreciated if this answer is helpful to you. protection-light-comes-lv2kkrmxrai4iihdvw4m3np2-2-0.jpg http://www.nitrobmw.com/

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your amp isnt getting enough power to it you may need to install a compacitor unit

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Sounds like you have an ohm problem, Tryy hooking the positive from one speaker to the negative on the other speaker. Then hook the negative from the first speaker to the negative on your amp and the positive from the second to the positive on the amp this will drop your ohm load and the amp should stop going into protection.

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Could be the power supply or output stage electrolytic capacitors.
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try turning down the volume level on the power amp.
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1 Answer

Protection light is on


Disconnect all speaker wires and signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp likely has blown output transistors.

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