Originally Posted By EEman
Check the icons on the right side of the 975 display. Page 15 in the manual shows the options for how these should look for 5.1 (and 7.1) inputs.

If it doesn't look like one of those revisit your setup.



Correct. The letters are the incoming signal, from your source device, and the boxes are the outgoing signal from the 975. If you see:

[L] [C] [R]

[SL] [SR]

[LFE]

Then you are receiving and sending out 5.1. If you don't see boxes around anything but L and R, then you have the unit in stereo mode and will need to use the SURR button on the remote to remedy this.