Anyway, it works fine using the analog audio out, but when I use the optical audio out there is no sound. When it goes through the auto setup it successfully finds and tests the left, right, and center channels.
I went through the user manual of the receiver and didn't find anything that I needed to do. I went through the menu on the TV and changed the digital audio from DTS to PCM and turned "Surround sound" from off to on. Still no sound.
Any ideas would be greatly appreciated.
btw, the Surround mode on the TV likely only applies to the TV speakers. There's nothing the TV does to create surround on an external system. If you pass PCM from the TV, it will only be stereo since the S/PDIF protocol used for optical is limited to two channels of PCM. If your set can pass DD 5.1, it is simply passing through an encoded audio source from the source. The Surround setting on the TV has nothing to do with either of those outputs.
And will output an encoded Dolby Digital 5.1 stream @ Optical Out if the original off-air program includes this...
Just my $0.02..
Thanks for all of the answers.
I know little about AVS, so please dumb down your answer. We purchased a new LG LED TV and have connected this to a 30-yr or older Fisher receiver with a digital adapter and fiber optic cord. It works, but we cannot control the volume with our remote. Can you suggest a way to do that? We have no remote with the receiver, and we normally control volume with our DirecTV remote.
If the former, it should continue to work as it did before. If the latter, you need to see whether your new TV has what is known as a "variable" audio output. The audio feed to a receiver is usually "fixed", with the expectation that the AVR will handle volume changes. Some TVs allow you to change whether the output is variable or fixed.
If your new TV has a variable output, then you'll need to configure the DTV remote to control that TV.
I struggled for a week to get my 47" M series Vizio TV hooked up to my audio receiver - Yamaha htr-6040 - with both the analog and optical TV outputs hooked up. One of the analog inputs on the receiver is labeled DTV/CBL. One of the two optical inputs is also labeled DTV/CBL. What I found after going through all the setup menus and other unnecessary steps was that the television seems to prioritize the analog output as opposed to the optical. I stumbled on this quite by accident while trying different input jacks on the receiver. They would work but I had to use the receiver remote to adjust volume on the Surround Sound system as the the volume control on the tv would not change anything. The solution was to disconnect the analog audio cables and use only the optical. If you have the programmable Vizio Remote, you can then set it up to recognize the receiver, turn the internal speakers off on the tv and the Vizio Remote will control the sound levels. I also programmed my Blu Ray player and Direct TV satellite receiver into the remote and it is working very well. You can find the procedure on the Vizio menu under "Devices". My Vizio remote is the XRT 510. Good luck as it can get really frustrating trying to interpret the language in the Yamaha manual and without an owners manual for the TV, it was a matter of trial and error for me.
I know there isn't anything wrong with my Sonos playbar because I have tried with another Samsung smart TV and there is sound. I am thinking that the digital optical out has a manufacture defect or Samsung just need a software update to fix it.