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XD stereo turns on, but PROTECTION flashes on screen repeatedly and it won't respond. None of the fuses inside are blown, but it won't reset.Any advice would be great. Thanks

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Flashing protection LEDs indicate problem with output circuit(s). Take unit to pro/tech

Posted on Apr 24, 2008

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I was changing speakers and stupidly left the stereo playing and the speaker wires to one speaker came into contact, and the sound went out -both channels, both A and B speaker outputs. Tried a reset...


6807a0f4-01e6-4183-ab60-ab1eac232bf8.jpgThe best thing to do is have a look at the main amp which will be on some kind of heat sink. If both channels are driven by an IC looking a bit like the illustration shown, then I would replace that. Otherwise you could be looking at some kind of protection circuit problem.

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Make sure none of the speaker wires are touching each other. If they are, it will short out the stereo which triggers protection mode and cuts out all of the sound.

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The reference to Zone 2 means that your Onkyo receiver is set to be remotely controlled from another location. Normally, this arrangement would be initiated at the time of set up but could be done later. You may have to repeat the initial set up routine to get things back to normal

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Yes BUT there is also high voltages both with and WITHOUT the unit connected to an A.C. plug. If you decide to check fuses, and you find one that is blown, PLEASE use ONLY the original value fuse.

Oct 31, 2012 | Marantz Audio & Video Receivers

1 Answer

I have a Kenwood kr-v8010 and all a suddenly one channel is only working just woundering if its a easy fix?


Could be a speaker wiring issue, defective speaker or possibly a speaker protection fuse inside the unit has blown.

1. Check speaker wires for proper connection.
2. Swap left and right speakers to see if the problem follows the speaker.
3. Check for internal speaker fuse that may have blown. PLEASE proceed with caution inside the unit. With the AC cord unplugged there are still high voltages resident inside...BE CAREFUL!!

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1 Answer

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It may be a bad power cable or on/off button.

May 06, 2012 | Audio & Video Receivers

1 Answer

Where are the fuses in the harman kardon 3380 receiver, I had a lightning strike which I think knocked out my receiver thru my outdoor speakers, it will not turn on, could it be a fuse and if yes, where is...


Hello Randy,
There are two options here: first, the power button is amber but unit still won't go. In this case try a 'factory reset' as per manual. If this won't work, it seems that the processor is gone (located on the display board) so you have to bring your unit into a authorized shop for repairs. Secondly, it might be just matter of some blown fuses which are located inside the unit on the transformer board. If after replacing (if they're blown) the unit still won't work or keeps blowing the new fuses, follow the first advice, meaning you have to bring the receiver to a service. To access the fuses, you have to remove the top cover.I wish you luck
Kostiko

Sep 12, 2011 | Harman Kardon HK 3380 Receiver

1 Answer

The receiver turns off 2 seconds after turning power on....red light blinks


have you got all the wires wired in correctly.have you extended your speaker cables and not insulated them(wires could be touching each other).maybe a blown fuse inside.although i think if it were a fuse,it probably wouldnt light up at all.my experience with my system is that if i wire up something wrong,the power button light which is a green light,will change to red to let me know something is not right.(its warning me before i blow something up)!!yours might be doing the same thing only flickering to let you know somethings wrong.If none of this helps then you should send it in for repair.Dont be afraid to open your system and look for a glass fuse(s) about 20mm long.if you find one and its blown,then you are lucky.a blown fuse is better than a blown system

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1 Answer

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You make the problem bigger that it is because when an amplifier goes to protection mode are the audio amplifiers IC damaged

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1 Answer

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Your speakers or the wiring to the speakers shorted out, and a fuse inside of your receiver is blown. You can purchase a new unit or attempt to replace the fuse yourself.

Nov 24, 2007 | Sony STR-DE425 Receiver

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