Question about Onkyo TX-SV727 Receiver

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Every time I turn on my Onkyo receiver it goes in to protect mode.

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  • 98 Answers

Please check your speaker cables. Make sure that all of them are seated properly, none is touching each other or to the body of receiver.

Are you using banana plugs for connecting speaker or just directly. Some times even a little tiny frayed speaker cable touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough to activate and it could blow a few trasistors in the power output circuit.

Please take out all the speaker cables, unplug your receiver from the mains and try to restart without any cables plugged. If it powers on then you are lucky.

If not and the receiver still goes into protect mode or wont turn on then it possible that there are bad connections on the main board or have some blown transistors. How old is your system? if its still under warranty then you should contact Onkyo immidiately.

Let me know if I can be of any further help. Please do rate this solution and thanks for using FixYa!

Posted on Mar 09, 2009

6 Suggested Answers

SOURCE: Onkyo tx-sr800 PROTECT mode

Hold video1 and press speakers A button, it will say "clear" If the message protect appears again, then its service time.

Posted on Sep 05, 2007

SOURCE: Onkyo Tx-v940 Receiver/Amplifier Protection Mode

Audio amplifier IC's damaged you need to change it.Good luck

Posted on Jun 11, 2008

Gurudristi
  • 98 Answers

SOURCE: I just hooked up my old Onkyo TX-8511 receiver to

Just check your speaker cabling again. Make sure that all of them are seated properly, none is touching each other or the body of receiver. Rewire if necessary..
Are you using banana plugs for connecting speaker or just directly. Some times even a little tiny wire touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough and it could blown a few trasistors in the power circuit.

Otherwise, do your bose speakers play out load on other systems?

Posted on Mar 09, 2009

  • 4234 Answers

SOURCE: HK AVR-247 protect mode

This is an indication of an internal problem. Typically this is shorted output transistors. Expect a parts cost in the $25-$40 range for this repair.

Dan

Posted on Apr 06, 2010

barbu51
  • 566 Answers

SOURCE: my onkyo receiver (tx8511) keeps going to protect

Hi there
To answer your question;
Your amplifier goes into protect mode when it detects a fault or condition that could damage the speakers and/or the output stage.
Often caused by shorted outputs.
Although this does`nt tell you much on how to fix this problem, the best help i can give you at this point is to tell you to have it looked at by a repair shop.
Hope this help good luck

Posted on Apr 18, 2010

  • 1 Answer

SOURCE: How do I reset from the amp protect mode Onkyo receiver TX-SR600?

How do I reset my amp / receiver from protect mode ?

Posted on Jan 29, 2011

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To answer your question;
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disconnect the speakers and see if it does the same thing.
if it does not shut down,check that the speaker wires are not touching on the back of the speakers.
many times,people run over the wires with a vacuum or similar and a short results,or bump the speaker.most people have the leads way too long,and even if one strand touches,it will shut down the amp.
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Just check your speaker cabling again. Make sure that all of them are seated properly, none is touching each other or the body of receiver. Rewire if necessary..
Are you using banana plugs for connecting speaker or just directly. Some times even a little tiny wire touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough and it could blown a few trasistors in the power circuit.

Otherwise, do your bose speakers play out load on other systems?

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