Question about Denon AVR 3808Ci Receiver

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I was watching a movie on my denon avr-3808ci and all of a sudden it made a loud sound and it shut off. The power button was flashing red and wne I tried to turn it on, the power button would turn green for a few seconds and then **** down again. What happened?

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Probably one of your speakers has blown.. disconnect them all. turn the reciever on.
if this works turn it off connect one speaker and turn it on.. keep going until it goes red...
when you find the speaker discennect all the other speakers keep this one connected and confirm that it is this speaker giving issues.

if the amp doesn't come on with all speakers disconnected, remove the visual outs and start it with nothing connected. isolate the issue if this works. otherwise it might be your amp.

Posted on Nov 05, 2010

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Posted on Jan 02, 2017

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1 Answer

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may be there was some loose contact in ur receivers rear connections.thts why it produce the loud hum. use good quality inter connects. check is the all connectors are properly inserted or not.
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Digital projector is shutting down as soon as dvd


Hi make sure that in the projector menu it doesn't have an option to cancel "control" as many tv's with hdmi have the capability to receive command signals through the hdmi cable.

Also make sure that your receiver is set for hdmi signal you must designate which input you are using on the receiver and then tell it what type of signal you want it to use.

you may have just pushed a button that changed these settings somewhere along the way.

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Dec 30, 2009 | Denon AVR 3808Ci Receiver

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Denon avr-1706 receiver just shuts off


This sounds like the amps protector circuit has been activated due to thermal overload. switch it off for an hour or more to let it cool down, make sure your spkrs are connected properly, don't parallel. Try using a fan on the unit to get that heat away. Get a techie friend to give the insides a once over, and clear away any dust that has built up.

hope this is of some help,
Cheers Kimbo.

Sep 12, 2009 | Denon AVR-1706 Receiver

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NO GUI displayed


I had a similar problem with my Denon 3808 after it had the protection circuit tripped. First all I would get is a blue screen with sound, then after powering the unit off I got the display back, but all of the on screen GUI menus were gone. I could tell that the menu button worked because display located physically on the recever worked. I reset/rebooted the system (follow the directions in manual) and everything came back. Be aware by resetting the system any customization you have done will be lost. Hope that helps

May 30, 2009 | Denon AVR 3808Ci Receiver

1 Answer

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.

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No sound when on internet radio, playtime is running, volume is not muted, internet ok


It was solved by turning the receiver off with the power button (not stand-by). After turning on the netradio did have its sound back. Apparantly it must be running some sort of Windows os.

May 16, 2009 | Denon AVR 3808Ci 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.
or
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

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speaker terminal are short circuit,switch power off connect speaker properly then switch power back.
-the ventilation holes of the set are blocked-turn power off and make good ventilation around leave the set to cool and turn power back.
-the unit is operating at continuous high power turn it of and allow for cool down and switch it back.

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There should be a volume adjust on the center channel. This is done by the remote exclusively. You may also wish to compress the sound using the dynamic range compression button or so labeled.

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