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Have a AVR 1601protector circuit on checked wires ?

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The problem is your Dennon receiver,, try this so we can pinpoint out the problem..put the speakers close to the receiver ,what you will do now is to power up the receiver while listening to the speakers with the volume off.In about 3 to 5 seconds you should hear a slight click from the speakers try this both speakers,if you hear then circuit is ok.try to checked output for the speakers,;if there is high amount of DC at the speakers ouputs . the speakers will be destroyed. If you have a digital multimeter,measure the DC-should be about to 50millivolts or less..leave the set on for about 3 minutes for the circuits to stabilize before measuring,.then if you get overrange on the meter measure voltage then speaker will destroyed. then if the speakers are good and still no sound then the problem is in power amplifier section there's a four darlington transistors
, maybe defected or cold solder of the joint ,if seems your receiver needs to resolder the parts joints and to the tuner section and power amp. better to do this so your receiver will work better again.. Comment by VOTIT, posted on Jun 25, 2008Just click FIXYA for tech48 below to his last comment ,its override the the thanks for trying color yell

Posted on Jul 04, 2008

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1 Answer

How do i reset AVR-1100

On the rear panel of the AVR-1100, there is a hexagonal point of contact which is called "Circuit Breaker". On the "Circuit Breaker", you can find the Reset button. Press and hold the Reset button to reset the device.
Ensure that all the excessive loads to the AVR-1100 are disconnected prior to resetting it.

May 28, 2012 | Denon AVR-1100 Receiver

1 Answer

My harman kardon avr 55 keeps shutting off on its own

Fist of all you have to disconnect all the speakers From AVR. Then switch ON the AVR . If its working normally then any of the speaker or any of the wire to the speaker is faulty. If so connect the speaker back one by one and check on which speaker connection does the AVR shuts off. That speaker or the wire to the speaker is faulty. Also try the same with the HDMI cables if they are use. Improper connction of HDMI cables can lead to these type of problem

If the AVR is not functioning properly even after removing the speakers(shuts off) thne there is internal fault with the amplifiers stage. Normally Dry soldering on the amplifier circuit board can cause this problem. Its need proffessional support.


Apr 27, 2012 | Harman Kardon AVR 55 Receiver

1 Answer

My Harmon Kardon AVR 2600 goes to protect mode when powered up. After many tries it will fire up but at times it's up to twenty times. I did load the software upgrade 6 months and it has been fine

Check all speaker wiring for shorts, if okay! there is a problem in the audio output stage of the unit or the protection circuit is not working properly. I would suggest a pro to evaluate.

Apr 02, 2012 | Harman Kardon AVR 2600

1 Answer

Avr3300 denon receiver sound cut in out

The problem is in the audio output section, or cracked solder connections on the main printed circuit board. But! check the speaker wires for shorts first, if okay! you will need a professional to take this further.

Mar 27, 2012 | Denon AVR-3300 Receiver

1 Answer

AVR-789 powers down with red flashing light

This is an indication that there is an overload problem in the output section of the amplifier. The overload could be thermal or electrical The overload circuit has built-in protection to help keep the amp from burning itself out. disconnect all speakers and cables from the unit and power it up. If the problem still exists, it is internal and will need to be repaired bya professional technician. If the problem goes away, check for shorted, crossed wires to your external speakers. Try different wires and speakers.
Hope this helps.

Feb 10, 2011 | Denon AVR-787

1 Answer

My Harmon Kardon AVR 500 sound doesn't work, I disconnected speakers, re connected & reset protection. Nos ound not even on test mode

Hi it is seem there is no output from your device. Please check the circuit components and wires for malfunction in your Kardon then. Regards

Feb 09, 2011 | Harman Kardon AVR 500 Receiver

1 Answer

Denon AVR-1507. Worked one night, wouldn't work the next night. Nothing is coming on at all. No known reason just not getting any power. Any ideas on what to check out? Is there a reset button, is there...

This is a common question on this site. Amps of all types have protection circuits to keep them from doing a self meltdown. Testing follows this logic. 1. Remove all speaker wires. 2. Keep the volume down - all the way. 3. Turn the unit on. 4. If it does not trip off, then there is a problem either in a speaker or the wiring. a. Reconnect one at a time until/unless it trips off b. That will tell you where to look further.
If it does trip off, then there is an internal circuit issue in the amp and probably requires professional help to fix.

Dec 08, 2010 | Denon AVR-1507 Receiver

1 Answer

Standby flashing

Thats the protection circuit kicking in, overheating is rarely the problem, check your speaker wires for shorts. If it does that with nothing connected you have a bad amp board :(


Sep 12, 2009 | Denon AVR-95 Receiver

1 Answer

Protection circuit momentary activation. Not heat/speaker problem

Is it possible for you to lower the source level? if yes go ahead...

There is an automatic Dialogue normalisation function in Denon which is activated to reduce overly bright input signals. ( most movies have wide variation in sound levels and therefore this function is avaialble). (see page45 of your user manual).

When your system worked fine with the AVR 2808CI, then why is it giving problem with AVR 3808CI....???? You must ask Denon.

Protection circuits are activated when:
1). There is rise of internal temperature.
2).Core wires of the speakers are touching each other or a core wire is sticking out of the terminal and touching the set's rear panel or the speaker itself has a problem.
3). Speakers with an impedance other than specified are being used.
4). the set is damamged or has bad solder / dry solder connection .

If your AVR is new, please do not accept, the set could be faulty. The protection circuits should not be activated unless any of the above happen.

You must know, at times the protection circuits are not fast enough and it could burn some of the transistors on the power output circuit. With time, the solders on the circuit board could give way and give you problems later on.

You must sort out with Denon if the AVR is under warranty.

Best of Luck.

Mar 11, 2009 | Denon AVR 3808Ci Receiver

1 Answer

Denon avr-5600 protection circuit.

My AVR 5600 has worked flawlessly for nearly 9 years!

Suddenly, when trying to play music (DVD or CD) through my LS32's (JBLPro), once I achieve higher volume, the receiver cuts off.... Using a Symetrex mixer, NO OVERLOAD light on the Denon, it simply cuts off!

Re-cut all the wire connectors... TV movies (5.1) work great at normal listening volumes.... but tonight, when cranking up music, the receiver simply cut off. Blinking light...


Apr 12, 2008 | Denon Audio Players & Recorders

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