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
SOURCE: Power on problem
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
SOURCE: Denon AVR 1705-no audio on TV
I have had the same problem and was told that it is a "board" inside. Essentially it has lost the surround sound ability and can only play things in Direct/Stereo. Mine is just over 2 years and I originally thought my kids had hit a button on the thing causing the issue...ended up paying $100 to trouble shoot it and confirm that it is internal and more expensive to fix than replace. Can't say that I will be buying a Denon again.
Just a hunch - what's drawing power from the two convenience outlets on the back of the receiver. They're only rated for 120watts, that is, nothing like a TV.
I doubt this has anything to do with the source you're playing (unless you have it cranked to "11"). If I understand you correctly you said turning the TV on and off causes the problem. There's a clue.
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