Question about Denon AVR-1907 Receiver

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Red power light blinking on my denon avr 1907, tried reset procedure, no speakers hooked up now and it still goes from green light to blinking red light and shuts off...Any clues?

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  • Tobin Mock Sep 28, 2011

    Thanks Paul, I was afraid of that.

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  • 163 Answers

This is a protection mode. The receiver protection circuit detects an internal problem like missing power supply voltage or blown channel and shuts down the receiver. You need to bring the unit to a repair facility.

Posted on Sep 28, 2011

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sounds like you might have a bad power transformer.

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Jan 20, 2013 | Denon Audio Players & Recorders

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Hello I Have a Denon AVR-1907. If I start it after a long time wihout a power conection it work but if I switch it off it need a long time without power to start again. The display don't work and after the...


Heat?

Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.


Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Mar 09, 2011 | Denon AVR-1907 Receiver

1 Answer

Can i hook up two subwoofers to a denon avr 1907


Sure, just get an RCA splitter and share the Sub Pre-Out with the two self-powered subs or one amp powering two of them.

http://www.retrevo.com/support/Denon-AVR-1907-Receivers-manual/id/696ci072/t/2/

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Denon avr -1709 how do i get it reset to factory specs


SWITCH OFF THE UNIT..PUSH AND HOLD DOWN BOTH SPEAKER A AND SPEAKER B BUTTON WHILE HOLDING DOWN BUTTONS TURN ON MAIN POWER THE DISPLAY WILL FLASH WAIT FOR 3 FLASHES THEN RELEASE. THIS WILL RETURN EVERYTHING BACK TO RFACTORY DEFAULT

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I have an AVR-1907 that powers on but shuts off with red power light flashing after the relays click on. Anything I can do besides junk it or take it to a service dealer? (I'm an EE, but can't find a TS...


Sounds like an overload. Make sure it's getting enough air, no shorts, and using speakers with compatible impedance.
If you press and hold down the power button long enough it might reset it...up to 15 seconds I think.

Dec 16, 2009 | Denon AVR-1907 Receiver

1 Answer

I have had my Denon AVR-1907 for about 20 months. About two months ago, it started shutting down and the On/Off button blinks red. Almost all the time it would clear by itself for no reason and then work...


You will have to check with a volt/ohm meter the + and - 15volt regulator ics in the power supply if they are off by more then 3 volts it will shut down as soon as it is turned on,and you still will have a flashing red light. also you may want to check the output transistors for shorts if your regulator ics are good.

Sep 29, 2009 | Denon AVR-1907 Receiver

1 Answer

Denon AVR-1907 blinking red power button


It sounds like you have a bad speaker on the zone 2, or you have the speakers connected improperly.

When you engage the zone 2 a relay clicks and the speakers then become part of the amplifiers circuit.

If the problem was in the amplifier, it would go into protect mode without even having speakers connected to it.

If the speakers all check good, you most likely have the wrong type of speakers, meaning the impeadance is too low, or you have too many speakers connected to it.

On the back of the Denon, you will see right around the speaker output jacks, what ratings the speakers should be. If I remember correctly, it says 6 ohms or more when using only "A" or "B", and it says 12ohms or more for "A" + "B".

If you have two 8 ohm speakers on the same speaker jack you now have a 4 ohm load. That is below the ratings and can cause the amp to shut down (go into protect). Since your amp shuts down right away, I think you have a bad speaker or way too many speakers connected.

I have seen many times when people will connect 2 or 4 speakers to the one of the outputs that are designed for only 1 speakers.

If you are using too many speakers you will need a speaker distribution box. It has a resistor network built into it so the amp never sees a lower impeadance than what it is designed for.
You can connect 4, 6 or 8 speakers to one set of outputs designed for 2 speakers. You do loose a lot of power to the speakers, but it is better than blowing up your amplifier.

If I can be of any further help, let me know.

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1 Answer

Blinking red power light


I think Denon designed in a "bug" as mine just "went east" today

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