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A-SV640 KEEP GOING TO PROTECT MODE - Onkyo Audio Players & Recorders

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Your item has developed an fault to power amplifier . the CPU of the unit analize power suplie if working correctly if not goes in standby mode . needs care in a sevice

Posted on Mar 31, 2015

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Hi, try powering up the unit with out any speaker connected if it still goes to PROTECT try factory reset if possible.
To reset the AV receiver to its factory defaults, turn it on and, while holding down VCR/DVR, press ON/STANDBY. "Clear" will appear on the display and the AV receiver will enter standby mode.
If this does not fix your problem you should take your unit to service . :)

Posted on Feb 07, 2014

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Posted on Jan 02, 2017

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1 Answer

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It only goes into protect mode usually when there are to manny speakers hooked up more then its can handle

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Denon avr2312ci shuts off and blinks red


Yes that is why. The receiver is protecting itself from an un-stable load impedance which causes current/voltage spikes through the final amplifier components and proportionally through the input where the protection relay is (click),. Do not continue using the amp until you have repaired or replaced the blown speakers. A rule of thumb is to maintain 8 ohms on each speaker wire plugged into the amp. Keep that in mind or eventually you will damage it.

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I keep losing power to my sub


you need to be more specific, is the amp going into protect mode or getting hot or shutting off? How many subs are hooked up and how , meaning amp is in mono or stereo mode? How long does ut take before it happens?

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My jvc deck says PROTECT on it and won't let me listen to music or anything! What should I do?


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Why do my mtx 8100d amp keep cuting off


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Power overload


That is a good thing, your receiver is going into "protect mode" that means the receiver is shutting down to keep from damaging delicate internal circuitry, it is sensing a speaker bottoming out or some other electrical "short" that could be damaging!
Also could be from over driveing the amp and then it starts to overheat thus going into "protect mode".
If your speakers are "clipping or distorting" turn it down, you are going to ruin your amp. Good luck !

Jan 06, 2010 | Pioneer VSX-516-K

1 Answer

Power light turns from green to red protect mode and then there is no sound coming from my speakers


there are 2 reasons for it to be going into protect mode 1 is heat 2 is the load on it. if it is going into protect mode soon after it starts there is a problem with the speaker. if it is after it has been on for a while it is that the amp itself is overheating. hope this answers your question

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Protect mode turns the reciever off at fairly modest volumes


I Had the same problem.

It occurs when you have a speaker wire touching something that it shouldnt and and you are grounding out the system. The system is going in to protect mode to keep itself from being damaged

In my case I found that I had a couple of frayed wires from one of my back speaker terminals touching the wire on the other terminal. This was all it took. I re-inserted the speaker wires on that one particular speaker and made sure they were not touching and problem solved.

JPT

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1 Answer

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If the amp is in protect mode, it probably has shorted output transistors.

What model amp is it?

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2 Answers

PROTECT MESSAGE


Most likely he has a couple of the connectors crossed. It is going in protect mode to keep it from damaging the internal electronics. Open it back up and double check all connections. then let me know.

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