(1)Download AVR3310 service manual.
(2)enter debug mode to see what kind of protect it belongs to.
(3)DC or ASO protect
(4)DC protect to check all smd transistors if leakage occurs or
differential and voltage amp transistors leakage
(5)ASO see service nanual troubleshooting steps.
(6)Replace all defective components.
SOURCE: Powers turns on then off
See: http://www.denon.ca/hapdfs/avr2105mane.pdf, page 72. In my case, the problem was a connector between my receiver and television. I unplugged it from my receiver and it now works.
SOURCE: Denon AVR-1907 blinking red power button
It sounds like you have a bad speaker on the zone 2, or you have the speakers connected improperly.
When you engage the zone 2 a relay clicks and the speakers then become part of the amplifiers circuit.
If the problem was in the amplifier, it would go into protect mode without even having speakers connected to it.
If the speakers all check good, you most likely have the wrong type of speakers, meaning the impeadance is too low, or you have too many speakers connected to it.
On the back of the Denon, you will see right around the speaker output jacks, what ratings the speakers should be. If I remember correctly, it says 6 ohms or more when using only "A" or "B", and it says 12ohms or more for "A" + "B".
If you have two 8 ohm speakers on the same speaker jack you now have a 4 ohm load. That is below the ratings and can cause the amp to shut down (go into protect). Since your amp shuts down right away, I think you have a bad speaker or way too many speakers connected.
I have seen many times when people will connect 2 or 4 speakers to the one of the outputs that are designed for only 1 speakers.
If you are using too many speakers you will need a speaker distribution box. It has a resistor network built into it so the amp never sees a lower impeadance than what it is designed for.
You can connect 4, 6 or 8 speakers to one set of outputs designed for 2 speakers. You do loose a lot of power to the speakers, but it is better than blowing up your amplifier.
If I can be of any further help, let me know.
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.
SOURCE: Denon avr-1804 its turns back after 5 sec
Disconnect all speaker wires on back and then turn on. If it happens again, it's most likely a power supply problem. If it doesn't happen again, it was probably crossed speaker wires.
SOURCE: red power light blinking on my denon avr 1907,
This is a protection mode. The receiver protection circuit detects an internal problem like missing power supply voltage or blown channel and shuts down the receiver. You need to bring the unit to a repair facility.
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