Question about Harman Kardon AVR 130 Receiver

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Unit keeps going into protection as soon as its powered up.

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  • Harman Kardon Master
  • 1,550 Answers

Replace the audio amplifiers ICs they are damaged thats why the amplifier protect himself of a greater damage.

Posted on Apr 24, 2008

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  • erazodavid
    erazodavid Aug 30, 2012

    how do i replace the audio amplifiers ICs?

  • erazodavid
    erazodavid Aug 30, 2012

    How do i replace the audio amplifiers ICs?

  •  Francisco Mauricio G
    Francisco Mauricio G Sep 01, 2012

    If you are not a technician send the device to a repair shop

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  • Contributor
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Most likely - the wire strands of speakers are sticking in wrong direction, shorting and causing receiver to go into protection mode. It often happens after you moved a speaker; so try first with that speaker.

Posted on Dec 27, 2008

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1 Answer

My recievers audio keeps turning off only when i play my xbox, when i watch tv it works perfectly fine


Hi,


Usually a turning off of the set that is the receiver fault will indicate a bad transistor in the amplification section. I suspect that the control circuit is sensing a fluctuation in the power supply and going in to protect mode. (assuming that the protect circuit itself is working properly) If a voltage is too high the unit will go in to protect mode to prevent damage to the speakers and the rest of the unit. I would take the unit in to a local repair shop and get a estimate of repair charges. Expect a 60 to 80 dollar repair charge depending on how many parts need to be replaced and what the repair labor rate is in your area.


Hoping this will help to solve the problem of the receiver...

Aug 04, 2011 | Onkyo TX-SR606 Receiver

1 Answer

Display says protection and turns off. Why?


The protection message means that a fault has been detected. The unit turns off to protect the rest of the system. Depending on the timing of the message, you could have an overvoltage at one of the boards, a problem with one or more of the speakers or a thermal issue. (The first two will trigger the unit turning off as soon as it is turned on. To check if the speakers are the culprit, unplug them and see if the receiver powers up properly.) If there is a heat build up, the unit will turn off after being on for a while.

The service manual is available for a fee here: http://www.free-service-manuals.com/Onkyo_TX-SV646_Service_Manual_L44672/ .

I hope this helps.

Cindy Wells

Jul 17, 2011 | Onkyo TX-SV646 Receiver

1 Answer

Receiver will not operate. when powered on red light flashes, menu displays, than thee is a loud click and the red light keeps flashing. tried the reset and it still does not work.


This sounds like the unit is going in to protect mode. See the link below for further information. Specifically to your unit, we need to know the model number. Also, try disconnecting the speaker cables completely and try again. Update this with how the unit reacts. If the unit powers up fine, then there is a problem with either the wiring to the speakers or the speakers themselves.

Please keep us posted.

Thanks,
Dan

Jun 17, 2011 | Denon Audio & Video Receivers

1 Answer

Turns off as soon as you turn it on...amp circuit protection


It might just be a problem with the power supply unit within the receiver. Recent power surge perhaps, or power outage?? If you are up to it, remove the casing and look to see if there are any blown fuses on the circuit boards. Unplug the unit before you start fishing around in there. Hope this is helpful.

Apr 19, 2010 | Onkyo Tx-sr507 A/V Receiver

1 Answer

I turn the unit on and it works for about a minute then powers down. The red light stays on. If I hit power button again it works but for less than a minute and it powers down again. Any suggestions?


try to check speaker wiring connection for possible short ckt. also check speaker itself, this amplifier have protection ckt that make unit off soon as short ckt detected.

Apr 13, 2010 | Aiwa AV-D67 Receiver

1 Answer

My denon receiver keeps shutting off around -15 and it just started doing it. I reset it to factory settings and all the speakers are working fine. It isn't hot, it will do it as soon as I turn it on. I am...


try this and see if it work. keep in mind that the audio output is very sensitive unit and it has a built in reset switch which keeping the unit from shorting out. the systems go into reset because of safety precaution overloading the systems. The most important is to make sure you have the correct post connect from the receiver to the speakers, such as Positive to Positive and Negative to Negative. If the post is not hooked into the correct post it will sense the overload and the unit go into reset mode or protection mode. Trace the correct wire to the right post and see if that will rectify the issue.

Dec 02, 2009 | Denon AVR-1908

2 Answers

"protected"


First, disconnect all speaker wires from the unit and power it back up. If it does not go into protect. post a comment and I can walk you thru troubleshooting. If it goes into protect, it needs to be serviced.

Jun 24, 2009 | Sony STR-DE835 Receiver

1 Answer

Protect keeps flashing


Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

Apr 23, 2009 | Sony STR-DE475 Receiver

1 Answer

Denon AVR-3802


I have repaired many of these Denon receivers over the last few years.

Since the headphones work, that means if you dis-connect the speakers it will turn on and not go into protect (when power cuts off a few seconds after turning the unit on).

The most likely problem is a bad speaker. to find out which speaker is causing the problem, do this.

Start out with just one speaker connected and then turn on the unit. If it turns on and plays music, you know that speaker is good.
Now turn the unit off again and add another speaker and keep the first speaker connected. Once again, if the unit plays, that speaker is also good.

Keep doing this same procedure one speaker at a time. As soon as you connect a speaker and then try to turn on the unit and it goes into protect, the speaker you just connected is bad.

To confirm that this speaker is the bad speaker, dis-connect all speakers and only plug the suspected bad speaker into a speaker jack that worked with one of the other speakers.
If the unit still goes into protect you know then that you have found the bad speaker.

If the unit still goes into protect, that speaker is bad and you will need to take it in for repair or replace it.
make sure you use 8 ohm speakers. if i remember correctly these Denons can use 6 ohm speakers, but those are harder to find and most home speakers are 8 ohms.

If the unit does not go into protect and that suspected bad speaker plays in one of the other speaker jacks, what you really have is a bad channel in the amplifier, the channel that the suspected bad speaker was previously connected to.

If you find out you have a bad channel, you will need to take it in to an repair center. Preferably an authorized Denon service center. There are not very many of those around. I work at the only authorized Denon service center in the entire state of Michigan.

If I can be of more assistance, don't hesitate to ask. And a good rating is always appreciated. :)

Jun 22, 2008 | Denon AVR-3802 Receiver

4 Answers

Marantz SR6001 AV Surround Receiver - Blinking Standy Light


Try pressing the power, and multi speaker button at the same time. But first turn the unit off...then press the above buttons at the same time...This is for the SR6001... GH

Feb 16, 2008 | Denon DRA-395 Receiver

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