Question about Denon AVR-1506 Receiver

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Denon avr-1506 will turn on then flash red and turn off... how do i make it stop or fix it??

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I had the same problem and the way I found to resolve it was to put all speakers at -5 dB. One inconvenient is that some movies are not mixed very well so I can't understand very clearly speaking voices (central speaker), but anyway...

Posted on Aug 07, 2011

  • Stephane Aug 08, 2011

    A quick update about what I wrote yesterday. The problem came back so I had to look for another solution. I looked more deeply at the wires and two were not connected with respect to polarity. After replugging all correctly, I was able to put back speakers gain to 0 dB (instead of -5) and was able to listen a whole 2 hour movie without a single problem.

    Lessons learned: don't take for granted wires are connected correctly and pay attention that wires don't touch themselves... on the receiver side but also on the speakers side.

    Hope this helps...

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In most AV receivers if the standby light flashes after turning on and you don't hear the regular click of the relay engaging after 4 seconds, indicates an output short or amplifier failure. The protection circuit prevents any further damage by not turning on system.
You will need professional help to fix this problem because even to a electronic enthusiast the construction of a typical AVR is not service friendly.

Posted on Jul 01, 2011

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Posted on Jan 02, 2017

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SOURCE: what do i do when my DENON AVR-1506 turns on then

Generally speaking, an amp attempts to protect 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.

Posted on Jul 01, 2011

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What do i do when my DENON AVR-1506 turns on then flashes red and turns off?


Generally speaking, an amp attempts to protect 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.

Jul 01, 2011 | Denon AVR-1506 Receiver

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The green light flashes when power is turned on and then flashes red and turns off. Can this be reset ?


what do i do when my DENON AVR-1506 turns on then flashes red and turns off?

Mar 08, 2011 | Denon AVR-1506 Receiver

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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

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if it does i would check the output transistor (ic).

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