Question about Denon AVR-3805 Receiver

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Denon receiver follow up

If my preamp is over heating and causing my receiver to shutdown how do I remedy? I already have dual fans in the closet.
Guru suggested this was my problem with the receiver shutting down during sound  spikes.
Denon avr 3805

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A sound spike should not heat up the unit enough to shut it down. There is another problem. What is the time frame for the shutdown? Is it only after the unit has been running for a while?
Dan

Posted on Apr 18, 2008

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Posted on Jan 02, 2017

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1 Answer

I have an AVR 790 Denon home theater. I want to connect an old Dual turntable. Given the addition of a preamp, is there an analog input? or how do I connect?


There are several analog inputs. I'd choose the one that that says 'VCR (iPod'). With the preamp, any analog input should work. The preamp is basically needed for inverse RIAA equalization. LPs are equalized in order to keep the record grooves smaller, for longer playing time, Bass frequencies are reduced and treble increased, so they need an inverse filter, which the preamp supplies, as well as providing a signal level more suitable for the receiver input. Best Budget Phono Preamps For Your Turntable

Jul 05, 2018 | Denon Audio Players & Recorders

4 Answers

My Denon AVR3805 shuts down during sound spikes in music. I have to keep the volume at a lower level to keep this from happening. I keep the receiver on a rack in a closet system with fans to keep it cool...


Hi,

Try a hard reset first unplug all the cords from the ck and allow the unit to reset for 30min and then plug in the cords back.

I will be posting more troubleshooting steps..

Goodluck..

Apr 05, 2008 | Audio Players & Recorders

1 Answer

Similar situation as previously described with the Denon AVR-1508, but mine will shut off after about 10-12 minutes the first time around and then ~2 minutes after it is turned off and then back on. Unit...


Most new receivers have a fan on the back, if you have one check to make sure it is working, most won't activate until the unit gets warm, other issues are bad solder connections on the audio outputs causing intermittent shutdown, as a final inspection check speaker connections to the receiver and speakers.

Sep 18, 2011 | Denon AVR-1508 Receiver

1 Answer

AFTER 2-3 SEC THE AMPLIFIER SHUTS DOWN AND THE ON/OFF BUTTON FLASHED RED sOME ADVICE?


Check to make sure the speaker wiring is secure, failing that! the audio output stage that drives the speakers is the problem, you probably have a short and the safety shutdown circuits have be activated to prevent further damage. It will need a technician to remedy the situation.

Jan 01, 2011 | Denon AVR-1906 Receiver

1 Answer

Power button turns green, flashes and then turns red and flashes.


Hi,
While working it stops and flashes red approximately 2 seconds interval

Causes
Protection circuit is activated depending on the temperature of the surroundings

Remedy
Switch off the power supply and power on after the temperature have reduced.


While working it stops and flashes red approximately 0.5 seconds interval

Causes
1.Using speakers having less impedance than the specified.
2.If speaker core wire touch each other Protection circuit is activated


Even applying power red flashes 0.5 seconds interval

Cause
Amplifier circuit has failed

Remedy
Switch off the power and contact denon service centre


Thank You

Sep 07, 2010 | Denon AVR-789 Receiver

1 Answer

THE UNIT WILL KEEP SHUTTING DOWN AFTER IT IS GOING FOR A WHILE. NOT JUST THE AUDIO ALL POWER IS LOST.


Typically this is because of heat generation. There are protection circuits that will shutdown the receiver when it gets too hot. There are many reasons for this. Can you update this with the make and model please? That will help to determine the possible causes of the heat shutdown.

Thanks,
Dan

Dec 04, 2009 | Denon AVR688

1 Answer

How do i reset my Denon udra m1o tuner amp from protect mode?


Protect mode can not be "reset". This mode means that a problem was detected in the final amp stage and the unit has been shutdown to prevent further damage. The most common cause of this is failed output transistors. Plan on a parts cost in the $20-$20 range for this repair.

Dan

Nov 03, 2009 | Denon Audio Players & Recorders

2 Answers

Denon AV Receiver Model AVR3600 locked at'' Protection '' mode


The power supply is damaged and needs to be serviced. You have done exactly what you should have to test for an outside issue, it's the receiver.

Nov 02, 2009 | Audio Players & Recorders

1 Answer

Denon receiver shutdown


Try turning down your tone controls. Like your bass, treble, or your equalizer. If you hear too much tinny or hissing sounds, the treble has to be turned down, or turn down the upper bands controls on your equalizer to the optimun level. If you hear too much bassy sounds, your bass control has to be turned down, or the lower band controls has to be turned down to the optimun level. If you are planning on turning the volume up, you may have to turn down some of the tone controls to the optimun levels, otherwise, your receiver may shutdown, or you may blow fuses in your speakers. Also make sure you speaker wire polarity is hooked up right. Red wire on the + red terminals, and the black wire on the - black terminals. Also don't have the volume turned up too high to the point where your receiver would have clipping or distortion, or else your receiver may shutdown, or you may blow fuses in your speakers.

If this don't help, then there may be something wrong with your receiver or your speaker.

Apr 05, 2008 | Sherwood RX-4105 Receiver

1 Answer

Denon 3300 Fan Workaround?


the preamp section will not generate a great deal of heat. Try it and see...leave the amp running with signal going through it and the prein-out jumpers removed and see what noises it makes over time

Nov 22, 2007 | Audio Players & Recorders

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