Question about Harman Kardon AVR 340 Receiver

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Reciver is going to protection mode and sound turns off

Reciver is going to protection mode and turns off or stays with no sound.
What can I do to go out of protection mode to be able to hear sound?

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Is some speakers is defective, or not present (connected), check all cables

Posted on Jun 06, 2010

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1 Answer

Wont turn on


tuner setting might be default only in stereo only. do you have passive or active speakers?

Apr 10, 2014 | Harman Kardon AVR 240 Receiver

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No audio sound, Reciver going to protection mode


If you bought the extended warranty, you need to go where you purchased it and they can look it up on their computer system. If it's out of warranty, the repair cost is debatable. Between 125-175 average. 50% of the cost.

Jun 03, 2010 | Harman Kardon AVR 340 Receiver

1 Answer

Reciver goes into protect mode as soon as I turn it on.


Remove speaker wires and try again. If it still goes into protect mode, the problem is internal...shorted power transistors or some other fault. Check fuses also.

Apr 01, 2010 | Harman Kardon HK 3480 Receiver

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Reciver turns on then rapidly turns off


the click is a protection switch. one of the power transistor or protection tranisitor is defective.

Aug 22, 2009 | Audio Players & Recorders

1 Answer

Reciver overload


More than likely, it's not a problem with the receiver. The fastest way to tell is to disconnect all speakers at the back of the receiver and turn it on. If it does not shut down, your receiver is ok and is just protecting itself from damage. If it stays on, check all your wiring, what it sounds like is that you have one or two braids of wire touching the other terminal. Not enough to cause a "short" at turn on, however, when you turn up the volume the resistance increases and creates a short, thus "overload" shows on the receiver. Hope this helps. If you need more help troubleshooting, post a comment and I can help more.

Aug 16, 2009 | Technics SA-DX930 Receiver

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Kenwood Home Theater


Please update your post with any Model Numbers that you can retrieve, especially the subwoofer. Off hand, and with the limited amount of information that you have provided, I would GUESS that your subwoofer is simply overheating, and is being shutdown internally, hence protecting the fuse because no short is detected. If you haven't moved and or vaccuumed/cleaned around or near your system regularly, dust, pollution, pollen...you name it, builds up and can easily prevent electronics from breeathing/venting properly.

Jul 31, 2007 | Kenwood HTB755DV System

1 Answer

My KLH 2400 tuner plays wonderful and then clicks off and then on....and then off....


Suzie, your reciver is going into a protection mode. There is a problem with one of your speakers, the wiring, or +with the reciver itself. If you know how to use a multimeter, then you can test the resistance of the speaker, as if one speaker was partally shorted this problem would occor. If you have another set of speakers, try them. If not then you will need to have the reciver bench checked for a fault.

Oct 07, 2006 | KLH KL2400 Tuner

1 Answer

My receiver is in protect mode.


The units in the protect mode because the Microprocessor detects a large current being drawn by the amp. section of the reciver. This is a solid state unit and there are no user replaceable parts inside this unit. Unless you know how to trouble shoot sloid state devices then you should seek a pro to assist you with this repair. GOOD LUCK

Jun 25, 2006 | Sony STR-DE597 Receiver

2 Answers

Denon avr 1601


hi there many things that can cause this fault main reason: the device is in protective mode and wont let anything to happen to the reciver and its components - the amp is shorted - its heating up - short in the voltage regulator - and many more..... my advice....: if its in warranty then fix it if u understand what i just wrote then open it up and look for the problem and if neither of these are relevent.... then just take to somebody that does good luck windman

Feb 14, 2006 | Denon AVR-1601 Receiver

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