"followed your instructions and received sound from the outputs straight from the edge to the 568."

That is a good test to narrow down where a problem is. Getting sound on all the outputs individually means the source, Edge and EDID are fine and the wiring or config for the MHR input isn't proper. If you were only getting sound on one of the outputs you would likely be having an Edge/EDID issue or a setup problem in the player itself.

"right now I am receiving sound from all channels."

That is a good thing!

Shawn

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