Question about Denon AVR-1911 Receiver

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When I turn my Reciever on, green light flashes in 1s space for 3 seconds and then it's just green, but the display doesn't work.

First I was playing some music and everything worked fine, but then my Reciever stopped working and I thought it just overheated so I left it like that for around 45 minutes and it started working again. Then, after another 2 hours of playtime, it just stopped working and wouldn't turn back on. As I got closer to it, I could feel some kind of a electronic burn coming from the back. I tried resetting the microprocessor by holding the main power button and both surround mode buttons and HD Audio sign flashes in 1s space, and so does the LED beneath it, and when I let it go after 3 seconds, it just doesn't work, even though power button is flashing green. I would really appreciate it if you could help me with this one.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

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Anonymous

  • 3130 Answers

SOURCE: No Power

I mwas gonna suggest that you need the speakers attached but you stated later that it did the same thing with the speakers attached. The unit switching off after it checks its self is NOT a normal thing. TAKE IT BACK BEFORE ITS TOO LATE!! GOOD lUCK

Posted on Jun 18, 2006

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Anonymous

  • 624 Answers

SOURCE: Shutdown protection? HELP please

All of the Denon recievers I have repaired (over 100) that shut down after a very short time are going into protect mode. The display lights up and after about 10 seconds the display goes out and the standby led blinks red.
I have found that they have one of 3 possible problems and they all require that the reciever be taken apart and fixed at component level. No way to tell what your problem is until it gets put on a bench and troubleshot.

Problem 1. This is the most common problem. One of the front channels shorts out. On the big heat sink the front channels are at each end. It is the front left channel (close to the display) This requires that the output transistors be replaced as well as some driver transistors and some resistors and a capacitor. Lots of work for a blown channel. Denon has put out a bullitin to upgrade the bias transistor and change a couple of resistors to help compensate for this failure. That channel overheats more than any other channel.

Problem 2. There is a resistor that is right next to the preamp board that opens up. It is a 10 ohm 1 watt resistor and when it opens, it causes the unit to go into protect.

Problem 3. The +12 volt regulator fails. It is in the power supply area on a smal heat sink right next to the -12 volt regulator. Generic part number is KIA7812 It also causes the unit to go into protect.

Most decent repair shops can fix these from about $120 up to about $200. Depending on which problem it is and how fast they are at finding the problem. Most charge labor by the hour.

Posted on Jun 18, 2008

Anonymous

  • 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

Anonymous

  • 1 Answer

SOURCE: Denon AVR-1705 won't power up

when i turn it on it stays on for 3-4 seconds then shuts down

Posted on Oct 16, 2008

jun_panlaqui

  • 1 Answer

SOURCE: Denon avr-688

I have the same problem with my AVR-688, were you able to find a help?

Posted on Jun 27, 2010

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