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Onkyo a-sv210 reciever repair

Amp says "protected" after power up. already changed fuse

Posted by nemesis1 on

  • not fixed Jan 12, 2008

    anytime I power up the word protect shows I have tried unplug the entire unit , tried holding videio 1 as I pushed the A button and have tried different componants still the same thing Help.

  • jimmy16 Feb 10, 2008

    amp says "protected" after power up.
    already changed fuse and still not working please let me know how to fix it

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5 Related Answers

Anonymous

  • 81 Answers

SOURCE: Amp Protection Mode

no, your output transistors maybe 2 of them are gone or the small power supply that feeds the other circuitry has become defective.

Posted on Dec 15, 2006

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petraman7

Scott Frye

  • 1175 Answers

SOURCE: A-SV210 on protect mode

In a generic sense I would check all the speakers to make sure theyre connected at BOTH ends.

I'm not sure who makes your receiver but if I did, I might be able to give more input.

Posted on Mar 18, 2008

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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

barbu51

Jacques Marin

  • 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

Anonymous

  • 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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Onkyo receiver tx-sr805 no display screen. how can i do a rest set? already unplug receiver per owens manual.

I'm sorta familiar with those kind of amps, lots have built in fuses. My guess is a fuse went
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My reciever went to protect mode after my speaker wires touched. I removed all cables and power for an hour but stays in protect mode. I also changed 2 15 amp fuses inside but nothing unless I take fuses...

Yes, you can do this easily.
Perform the following steps
(1)Plug your amp to AC outlet.
(2)Switch it on.
(3)observe time taken for switching off.
(4)immediate to shut down over current protect(5)3 seconds to shut down DC protect.
If over-current protect do the
following steps
(O)unplug the amp.
(1)download NR806 service manual.
(2)open the amp metal cover.
(3)measure 7 large white resistors resistance loacated next to power transistors mounted on a large heat sink with black probe touching the middle pin and red probe to first/left or third/right pin.
(4)If this 3 Pins large white colour 0.22ohm x 2 resistor is open with infinity ohms ,
(5)replace it and jot down this channel for example left surround faulty. Usually only 1 channel went faulty.
(6)the two large power transistors next to this white resistor 0.22 ohms x2 should also be replaced.
(7)plug the amp
(8)switch it on
(9)if ok, troubleshooting get done
(10)if not ok
(11)replace ALL the components of this power amp channel.
(12)pre-amp section no need to check.

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I replaced an inline power fuse inside of my Onkyo reciever, power returned and now I have no output to main speakers and the unit flashes back and fourth between regular display and protect. ?????

THE GOAL HEAR IS TO DETERMINE IF THE INSTALLATION IS CAUSING YOUR PROTECTION FAULT OR IS IT THE RECEIVER ITSELF HAVING INTERNAL DAMAGE. REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS, THEN POWER THE AMPLIFIER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL GOES INTO PROTECTION, THEN THE RECEIVER WILL NEED TO BE SERVICED, AS YOU HAVE TOTALLY SIMULATED A BENCHED CONDITION THAT IS TOTALLY INDEPENDENT OF YOUR INSTALLATION. MOST TIMES, THE RECEIVE WILL GO INTO PROTECTION WHEN IT SEES AN EXCESSIVE LOAD WHEN TURNING UP THE VOLUME, WHICH IS USUALLY CAUSED BY TOO MANY SPEAKERS OR DAMAGED SPEAKERS, BUT IF NO SPEAKERS CONNECTED, THEN IT IS USUALLY BECAUSE THE RECEIVER SEES AN EXCESSIVE LOAD DUE TO ITS OUTPUT SECTION BEING DAMAGED. IN ANY CASE, ONCE REPAIRED, YOU MUST CHECK YOUR SPEAKERS FOR BURNED VOICE-COILS, WHICH WILL IMPOSE AN EXCESSIVE LOAD TO THE AMPLIFIER AND CAN CAUSE IT TO FAIL AGAIN. ALSO, BE CAREFUL ABOUT HOW MANY TIMES YOU KEEP TURNING IT ON OR OFF, AS AT LEAST ONE TIME, THE PROTECTION CIRCUIT DID NOT DETECT IT IN TIME AND THAT IS WHY THE FUSE BLEW. ALSO, DO NO REPLACE THE FUSE WITH A LARGER FUSE. YOU DO NOT WANT TO SEE THE POWER SUPPLY ALSO GET DAMAGED, AS THIS WILL DEFINITELY ADD TO THE COST OF THE REPAIR. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V
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Power will not stay on

Activated protection circuitry means that the amplifier is seeing conditions it does not like and is shutting down the power to prevent further damage.
Either you have a short in your speaker wires, in your speakers, or a blown amplifier.
Disconnect both speakers and turn on the amplifier. Does it still give the error message? If it does, your amp is blown. If it does not, carefully inspect your speaker wires and their connection. Make sure all looks good and reconnect the speakers and try it again. Still get the error message? You likely have a problem in your speaker cabinet(s).
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Blow right speaker channel - ONKYO TX-SR506

There is some way to change a protection (fuse?). No. The fuse usually was not broken. How long did your amp turn on?
3 seconds (DC protect) OR immediately shut down (Over Current protect)? How to confirm?
1.Unplug the amp.
2.Remove the metal cover.
3.You will see a long vertically installed pre-amp board mounted next to those large power transistors fixed by 12 screws on a large aluminium heat sink.
4.Remove this long vertically installed board mounted by 2 screws.
5.With 2 screws removed, just pulling this board out and hold it with one hand.
6.Plug the amp and switch it on.
7.If your amp stays ON forever, the problem is from this long board.
8.If switch off at once, the problem is from power amp board.
Try the above- mentioned steps. I will tell you what to do next. Just search you tube for SR600 cap replacement. I have written an email here. Write an email to me if you want to fix this amp.

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It says protect on the front screen

An amplifier goes into protect when it detects a load with too low an impedance. If it displays protect with no speakers connected at all, the amplifier is damaged. If not, reconnect speakers one at a time (while the amp is off!) to determine the cause of the fault.

It may be as simple as a single strand of copper wire shorting between the positive and negative terminals of a connection.

:)
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Onkyo amp keeps turning off

Check your fuses sounds like one may of blownout
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Onkyo receiver question

One of the speaker maybe are in bad conditions and that burn out the audio amplifier IC you need to change it or send the device to a repair center.Good luck
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Your are running out of power !!
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Amp Protection Mode

no, your output transistors maybe 2 of them are gone or the small power supply that feeds the other circuitry has become defective.
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