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No audio

1094 Views 9 Replies 3 Participants Last post by  ktkelly
I have a home theater with projector and receiver from previous owner.
When we moved in, one of the shelves in the devices cabinet was vacant with 3 Composite cables and 2 audio cables laying on it. They are still connected to the receiver.
DVD player and radio all works fine. I hooked up my set top box to those cables, to check if I could watch my internet TV there. Set top is the only one I have that does have composite out.
I got as far as video working fine via projector but no audio.
Any suggestions? Knowing that outputs on set top box work just fine, I had it running on a different TV. Audio cables are indeed plugged into Audio inputs on receiver.
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Wish I knew. It's Devon AVR. About 10 yo. It shows "Searching composite input" for about 10 seconds, then video feed begins, but no audio. Set top is Dune HD mini. It was previously connected to a TV with no HDMI, via composite and audio, and it all worked fine. I have no idea why there is no sound now.
Audio is not connected to TV. Everything goes to receiver and receiver sends signal to projector.
Set top box is internet TV box. They are called so as they are set on top of TV I think.
I'll look into Denon model at home, I'm at work now. Far as I know, son had it checked and audio cables were properly connected to audio in on AVR.
We also have no idea what he had connected there before. He left behind AVR, BluRay, VHS, amp, everything else. All functions well and is good class. But he took something off that one shelf, and only composite and 2 audio cables are left on it.
OK, it's Denon AVR-3806
I have manual. Wouldn't be asking here if we knew why there is no sound.
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