Question about Denon AVR-1906 Receiver

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Unit starts to come on and then shuts off and the stand-by light flashes

I have checked the speaker connections and found that a couple were slightly loose. I tightened them but have found no improvement.

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By the wires being loose it sometimes blows the main power circuit.If you unplug everything from the back and it still does it you'll need to take it in and get it fixed..The main power circuit blew or the diode for the speaker power is shorted..

Posted on Mar 30, 2009

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Remove the speaker wires, then reconnect one at a time. If the LED starts flashing again before you've connected any wires, then the problem is within the receiver.
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When I turn the unit on it cycles through its start up but turns right off. little red light blinking. I checked the fuses did the reset on the micro processor with no luck. I also detect a slight burning...


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these a couple things you can try to reset,if resetting dont work you will have a amp problem.Try pushing and holding down these 3 buttons s.speaker b and att and exit buttons for at least 3 sec or more.should reset.If not also try pushing and holding down mult speaker and exit and att buttons together for at least 3 or more seconds.if still shuts down you will have shorted transistors inside of unit.

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Unit only stays on for 4 seconds then turns itself off.


This is a short or unstable ohm load. Remove all speaker wire connections to see if the amp will stay on.
If the problem goes away when disconnecting the speaker wires try this:
1) Check volume level on zone one and zone 2 if connected. If it is too high the amp will go into protect mode and shut off exactly as you described.
2) Make sure no wires are touching any other wire or the metal surface of the amp. This will cause a short and send the amp into protect mode.

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To me it sounds like you might have blown a channel(s). The speakers that you are using with unit, did they come with it? If not you need to check the ohms of the speakers. It looks like the Onkyo HT-SR800 can only handle a minimum of 8 ohms. If your unit is under warranty definately send it in for repair

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Time for a little repair here. It seems that one or more channels have developed an excessive drain on the supply, and has caused the threshold to trip and shut you down. It's more than likely shop time at this point....accordianman

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