How do i unlock the b channel of my denon avr-4802

SOURCE: DEnon AVR 2807 not giving desired output

You may be able to unplug the unit. Then turn it back on while pressing two buttons on the front of the unit. You will have to find out which two buttons they are, it can't just be any two. What you will be doing to the unit is resetting the micoprossing of the unit. When you do this the unit will flash, reset itself, you the release the buttons and your good as new. I have done this with a couple different reciever and it is a easy fix.

SOURCE: Selecting a Blu-Ray Player

If Denon blu ray has coaxial or optical out for audio, then your Denon receiver will process this signal and will give you 7.1 out sound.

SOURCE: Headphones only have left channel on Denon AVR-588 Receiver

Hi peroty,

Two suggestions for you.

1. If you look at the headphone jack connecton do you see one or two black O-rings or black lines on the jack. If you only see one they are Mono headphones and you would only get sound out of the left side. If there are two black lines they are stereo headphones and you should get sound on both the left & right sides.

2. If after checking the headphone jack connection and there are two black lines on it then I would suggest try a different pair of headphones to see if a different set of headphones works fine.

If a different pair of headphones works properly the original headphones may be bad. If neither set of headphones work properly it may be the reciever that may need to be repaired.

I hope it's not the receiver, but let me know if you have questions.
Matt @ OneCall
www.onecall.com
twitter.com/onecalldotcom

SOURCE: how do i reset my denon avr 4802

Switch off the unit and remove the AC cord from the wall
outlet.

Press and hold the DIRECT buttons and STEREO buttons, and
at the same time, plug in the AC cord.

Check that the entire display is flashing with an interval of
about 1 second, and release your fingers from the 2 buttons

That will default the unit