You forgot to tell what jacks you used fro the analog audio output. The PDF document shows only a mini-jack yet folk continue to try RCA jacks. No idea why they do that.
I have a new Samsung UE40H6400AK TV and have failed to move a high fi set up using the Audio Output channels that used to work well on a Sony Bravia TV using the same amplifier and speakers.
Speaker settings on the Samsung have no effect.
No sound at all coming through but the speakers but do pop and hiss when making a connection!