Is it correct that you have taken the audio signal from your receiver and connected to the TV somehow? If this is correct, then that is the problem. You then have the receiver wanting to control volume and at the same time the TV wanting to control volume, so at normal volume settings, you would get close to no sound at all.
The correct way to do it, is to do it one of the following ways:
1) Let the receiver handle the audio (like it is actually supposed to - I guess that's what you bought it for...???) and connect 5 speakers to the loudspeakers terminals in the receiver (and a suitable sub to the sub out if you have one). Then turn the volume on the TV all the way down and let the receiver do what it does best - handle to sound.
2) The other way is to connect your source (e.g. DVD-Player) directly to the TV (both video and audio). This would reduce the receiver to a nice black box without any function, so I guess this is not what you had planned
Try my first suggestion about and feel free to ask if you think I'm writing nonsense.
