Question about Denon AVR-3806 Receiver

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Dennon gets hot shuts off

When we play our music through the outside speakers the system will shut off. The power indicator light turns from green to red. The unit is hot to the touch. After a several minutes the system can be turned on again until it shuts off again. This occurs only when we are playing our exterior speakers. We have never had this happen while watching a movie or solely listening to music inside. Granted when we listen to outside music is is turned up louder. We have four speakers for the exterior. My initial inclination is that the unit overheats. Our electronics are in a closet with no or little air circulation.

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  • Denon Master
  • 1,054 Answers

How are your four outside speakers hooked up? If you have four speakers hooked up to only two output channels on the receiver, the receiver is sensing a short and shutting down to avoid damage to the amp.

Posted on Jul 22, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Foxyjay
  • 13 Answers

SOURCE: Power Button Flashing Red

If your amp looks like it's going to work as normal (ie the front display lights up as it should etc), but then the amp goes into protection mode when the anti-thud circuit times out, then I know what's likely to be wrong.

It's one of the power amplifier channels which has gone faulty.

I just found this out after having this problem with my AVR-1906.

I took the amp apart and de-soldered the suspected channel power transistors (centre channel in my case).....and hey-presto! it fired up as normal (obviously the centre channel would be out of service).

I have ordered the replacement transistors from Farnell (UK) at a miserly cost of around £2-£3 each.

Just waiting for them to arrive.

An alternative is, if you don't use all your channels, take the transistors from a known working but not needed channel and swap them over with the duff ones.

Hope thats of use!

Posted on Aug 16, 2008

  • 5 Answers

SOURCE: Denon AVR 2802 - Unit Turning Off

If DIGITAL sign blink, this mean DSP board is defective. It will cut the sound on the AMP section. DSp is maybe defective.

Posted on Aug 29, 2008

  • 3 Answers

SOURCE: Power Button Flashing Red

Try unplugging the entire unit and letting it sit for 5 minutes. See if this helps. If not, you need to do a complete reboot, which will cause you to lose your settings, but will probably solve your problem. To do a complete reboot, you will need to hold down two of the front bottons on the front panel. I'm not sure which, so either consult your manual or see other posts here which describe the reboot process for Denons. Hope this helps.

Posted on Jan 05, 2009

MNfisherman
  • 11896 Answers

SOURCE: Avr Shuts down at high volume

It does that because there is a safety feature in all the newer devices. If your system is turned up to high you would blow your audio outputs or speakers. That's why it shuts off.

Posted on Jan 17, 2009

localwonder
  • 6784 Answers

SOURCE: shuts off then red light indicator flashes, disconnected all speakers but still wont work

Hi, this is a power board issue. remove the cover and make sure that this unit doesn't have blow fuse. if the fuse is fine, you will then need to replace the integrated power/ main board.

Posted on May 21, 2009

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Why does my green power light blink and my amp not work


There are three status indicator lights on the top of the amplifier. These are as follows:
1) "Power" (Green): lights to indicate that the amplifier is turned on and operating normally.
2) "Thermal" (Red): lights to indicate that the amplifier has exceeded its safe operating temperature, putting the amplifier into a self-protection mode, which reduces the power output of the amplifier. The red light will shut off and the amplifier will return to normal, full-power operating mode if the heat sink temperature drops back to a safe level.
3) "Low ω" (Amber): lights to indicate that the impedance of the speaker load connected to the amplifier is lower than the optimum impedance load range for the amplifier. When this light is on, a protection circuit engages and reduces the power output of the amplifier. The amber indicator will also light when a short-circuit is detected in the speaker wiring (this can be a short between the positive and negative speaker wires or between either speaker wire and the vehicle chassis).


There is only one condition that will shut down an undamaged 500/1v2 completely... If battery voltage drops below 10 volts, the entire amplifier will shut itself off. The green "Power" indicator on the top of the amplifier will turn off when this occurs. The amplifier will turn back on when voltage climbs back above 10 volts. This may happen in a rapid cycle when bass-heavy program material causes a weak charging system to dip below 10 volts momentarily. If this is happening in your system, have your charging system inspected to make sure it is working properly.

If your amplifier is blinking Green, and no output is coming out of the speaker, you may have internal damage to your 500/1 Amp.

"My amplifier turns on, but there is no output"
  • Check the input signal using an AC voltmeter to measure the voltage from the source unit while an appropriate test tone is played through the source unit (disconnect the input cables from the amplifier prior to this test). The frequency used should be in the range that is to be amplified by the amplifier (example: 50 Hz for a sub bass application or 1 kHz for a full range / high-pass application). A steady, sufficient voltage (between 200mV and 8.0-volts) should be present at the output of the signal cables.
  • Check the output of the amplifier. Using the procedure explained in the previous check item (after plugging the input cables back into the amplifier) test for output at the speaker outputs of the amplifier. Unless you enjoy test tones at high levels, it is a good idea to remove the speaker wires from the amplifier while doing this. Turn the volume up approximately half way. 5V or more should be measured at the speaker outputs. This output level can vary greatly between amplifiers but it should not be in the millivolt range with the source unit at half volume. If you are reading sufficient voltage, check your speaker connections as explained below.
  • Check to ensure that the speaker wires are making a good connection with the metal inside the terminal block. The speaker wire connectors are designed to accept up to 8 AWG wire. Make sure to strip the wire to allow for a sufficient connection with the metal inside the terminal block.

For immediate assistance please call our Technical Support Department at 954-443-1100.
Otherwise, check this site out for Technical Assistance with your Amp:
http://mobile.jlaudio.com/support_pages.php?page_id=130

Here is your Manual:
http://mobile.jlaudio.com/pdfs/13320.pdf

May 25, 2011 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

I have an iPod Touch 4 with iOS version 4.1 It has been working flawlessly for 2+ months. Today when I shut my B&W off (while the iPod was docked), I got the flashing red light. I unplugged the...


these all relate to the power supply, sometimes when the board is faulty the aux works fine, the red light flashing may only occur when the ipod is connected, but it is all part of the same known problem. contact seller or b and w service, they should fix it.

Nov 01, 2010 | B&W Bowers and Wilkins Zeppelin iPod Music...

1 Answer

Whenever I start playing on my xbox or playstation, the receiver will shut off (the red light is blinking around the power button). Once I hit the button, it stops and then I can turn the receiver back...


does it only shut off on high volume or a loud noise?

It's the amp tripping to protect itself.

look out for a shorting speaker wire or faulty speaker etc. disconnect each in turn to find out which

Sep 03, 2010 | Denon AVR-987 Receiver

1 Answer

System shuts down when playing music dvds at 17 or 18


Check your speakers one by one, maybe one of them are about to burn that´s the reason your device turn on protection state,good luck

Mar 16, 2009 | Televison & Video

2 Answers

500.1 amp power lights blinks on and off


Protection mode; follow this link to get a manual for the amplifier: http://mobile.jlaudio.com/products_amps.php?amp_id=439

Below information is from the manual:

Status Indicator Lights / Protection Circuitry
There are three status indicator lights on the top of the amplifier. These are as follows:1) "Power" (Green): lights to indicate that the amplifier is turned on and operating normally.
2) "Thermal" (Red): lights to indicate that the amplifier has exceeded its safe operating temperature, putting the amplifier into a self-protection mode, which reduces the power output of the amplifier. The red light will shut off and the amplifier will return to normal, full-power operating mode if the heat sink temperature drops back to a safe level.
3) "Low ω" (Amber): lights to indicate that the impedance of the speaker load connected to the amplifier is lower than the optimum impedance load range for the amplifier. When this light is on, a protection circuit engages and reduces the power output of the amplifier. The amber indicator will also light when a short-circuit is detected in the speaker wiring (this can be a short between the positive and negative speaker wires or between either speaker wire and the vehicle chassis).
There is only one condition that will shut down an undamaged 500/1v2 completely… If battery voltage drops below 10 volts, the entire amplifier will shut itself off. The green "Power" indicator on the top of the amplifier will turn off when this occurs. The amplifier will turn back on when voltage climbs back above 10 volts. This may happen in a rapid cycle when bass-heavy program material causes a weak charging system to dip below 10 volts momentarily. If this is happening in your system, have your charging system inspected to make sure it is working properly.
For information on troubleshooting this amplifier, refer to Appendix E (page 21).

Jun 25, 2008 | Jl Audio E1200 Car Audio Amplifier

1 Answer

Shuts off after playing music


i had the same problem, apperantly creative made an error making the hardware for the subwoofer, and put in an mos-fet with to little resistance, i called creative and gave them the serial number behind the subwoofer and they sent me a new one that hasnt acted up yet.

Jan 13, 2008 | Creative Labs Gigaworks S750 Computer...

1 Answer

Speakers shut off


This may be due to a short in the wire or and lose wire in side. The reason the base stay on,it plug to the wall and the speakers our plug to it.

Jun 16, 2007 | Creative Labs Gigaworks S750 Computer...

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