Question about Denon AVR-2106 Receiver

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Optical Audio Connection

I cannot get the audio to work using the optical connect. I have a new HD-DVR and a relatively new DVD player and each has the optical and coaxial audio output. I have a Pioneer VSX-D412 Receiver that has the option of using either one. The coaxial works great using the DVD or DVR. However, neither works with the optical connection. You can see the bright red light coming from the end of the cable when it's plugged into the source so there appears to be a signal. The directions in the receiver's manual makes it sound like all you have to do is select the proper input. Any suggestions?

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My only thought is to make sure there are no protective covers over the ends of the optic cable. They often come with plastic caps. Either that or you have a bad optic cable if neither the DVD or DVR work with that cable. Good luck!

Posted on Dec 26, 2007

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Posted on Jan 02, 2017

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Hi, It sounds like your receiver is still looking for audio on the coaxial connection, rather than the optical.

1. Make sure the optical connection is between your DVD player and the LD/DVD Optical In on the back of your receiver.
2. If you have a monitor connected to the receiver to show the on-screen display, click Setup from the main menu, click Input Mode, then, next to LD/DVD choose Optical. It may be set to coaxial, analog or auto.

Alternatively, choose the input source on the front of your receiver (LD/DVD), then press Input Mode button (bottom right, near the input selector) till it displays Digital Optical.

If all else fails, reset the receiver by:
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