I am not completely sure this is the right sub-forum, but it feels good to me.
I have been reading bunches of posts. I have an older Denon AVR-2809CI. 3D was not on my list of things to do when I bought it. But life and technology moves on. I just got a Panasonic TC-P55UT50. So far all I have used it with is an HD cable box from Comcast.
Next on my list is, since the TV has 3D, put together a configuration to allow it to do 3D. I also bought a device from Darbee that is a processor for video. It actually seems to do an reasonably impressive job. You can actually see the difference and it does not seem to screw things up.
The Darbee processor fails to work if the receiver is in the loop. I tried two different TVs. One was HDMI 1.3, the other 1.4a. I have asked about the Darbee requiring HDMI 1.4a; no answer.
So. Here is what I think will work with minimal expenditure. I see no need to replace the receiver. It does pretty much everything I need except passing 3D. If I understand things correctly; this is what seems like the solution.
The TV has 2 HDMI connections. It also has an optical audio output.
Take the HDMI from the cable box to an HDMI switch.
Take a blue ray player to the same HDMI switch.
Connect the output of the switch to the Darbee processor.
Connect the output of the Darbee device to the TV HDMI.
Run the TOSLINK cable from the TV to a port on the receiver.
This lets me select the source from the controller of the HDMI switch. Always gives me the correct audio from the TV. Could also use a larger switch to do a game controller.
The only thing I can see that I lose here is I am limited to Dolby 5.1 audio. The TV specs imply if it is not Dolby 5.1, it just appears as a PCM output stream. I have no idea what that is, but I am guessing basic stereo.
To get 7.2 Dolby , DTS, or uncompressed audio, I need a new receiver or maybe one of the dual HDMI Panasonic Blueray players that uses HDMI for getting the audio to the receiver. That may have to go to the alternate HDMI on the TV. With the receiver set up to use a different input if the audio only HDMI was connected. I am not sure that part would actually work.
Do I have the right configuration?
Recommendations for the source of the HDMI switches please?