Question about Denon AVR-2312CI

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Denon 2312ci powers off afterabout a minute with no speakers or other connections. Then it won't power back on. I've let it sit for a day or two then it might power up.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Denon DRA 395 flashing red power light

Needs to be reset or fuse blown. Take to repair shop, cover has to be taken off and fuse replaced. You could fix it yourself but the warranty won't be honored. Do it yourself electronic shop should have a replacement fuse, may have to be soldered in place. Repair shop, should cost around $30.00 to $45.00 to fix, price of fuse $4.00 to $6.00. Your choice.

Posted on Mar 27, 2008

tech48
  • 624 Answers

SOURCE: Denon AVR-3802

I have repaired many of these Denon receivers over the last few years.

Since the headphones work, that means if you dis-connect the speakers it will turn on and not go into protect (when power cuts off a few seconds after turning the unit on).

The most likely problem is a bad speaker. to find out which speaker is causing the problem, do this.

Start out with just one speaker connected and then turn on the unit. If it turns on and plays music, you know that speaker is good.
Now turn the unit off again and add another speaker and keep the first speaker connected. Once again, if the unit plays, that speaker is also good.

Keep doing this same procedure one speaker at a time. As soon as you connect a speaker and then try to turn on the unit and it goes into protect, the speaker you just connected is bad.

To confirm that this speaker is the bad speaker, dis-connect all speakers and only plug the suspected bad speaker into a speaker jack that worked with one of the other speakers.
If the unit still goes into protect you know then that you have found the bad speaker.

If the unit still goes into protect, that speaker is bad and you will need to take it in for repair or replace it.
make sure you use 8 ohm speakers. if i remember correctly these Denons can use 6 ohm speakers, but those are harder to find and most home speakers are 8 ohms.

If the unit does not go into protect and that suspected bad speaker plays in one of the other speaker jacks, what you really have is a bad channel in the amplifier, the channel that the suspected bad speaker was previously connected to.

If you find out you have a bad channel, you will need to take it in to an repair center. Preferably an authorized Denon service center. There are not very many of those around. I work at the only authorized Denon service center in the entire state of Michigan.

If I can be of more assistance, don't hesitate to ask. And a good rating is always appreciated. :)

Posted on Jun 22, 2008

  • 7 Answers

SOURCE: Denon AVF988 to power amp to whole house speakers

jbell302, Check both remote spkers for operation from the A spks output if good, switch B remote spks to A main connect & main A spks to the B remote connection on the Denon spks outputs . Most amp sources do not like different ohm spks types & different cable or spks A-B. lenghts, because this makes up to resistances problems, making the amp to work harder & understanding what is going on. THE AMPS PROTECTION CIRCUIT IS AT ALERT & TRIES TO BALANCE THE RESISTANCE VOLUME. Best move is to try use the same spks. lenght & a higher qauge wire; 12.14.18qa. to better balance the output volume! All matching spks. pairs would help alot as well!

Posted on Feb 04, 2009

dunnbiker
  • 8546 Answers

SOURCE: Denon AVR 1804

You need to get the manual and do some reading first. I couldn't find the AVR-1804 but the AVR-1803 is avaiable. It should be close enough to get you through connection and setup.

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Posted on Feb 23, 2010

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1 Answer

Denon avr2312ci shuts off and blinks red


Yes that is why. The receiver is protecting itself from an un-stable load impedance which causes current/voltage spikes through the final amplifier components and proportionally through the input where the protection relay is (click),. Do not continue using the amp until you have repaired or replaced the blown speakers. A rule of thumb is to maintain 8 ohms on each speaker wire plugged into the amp. Keep that in mind or eventually you will damage it.

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...
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..
The overload is the transistor breaking down 9which tends to generate excessive heat), Then the thermistor on the amp pair heatsink senses this condition and shuts the amp down. (NO - replacing the thermistor eill not generally solve this issue, especially since the thermistor qwill survive a temp rise well above what the tranisitor pair will).

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