If the TV has RCA connections marked "audio out" you can go from those to the pre/amp processor audio in. Usually, this will disconnect the TVs internal speakers.
However, if the audio outs are variable then you would have to set the volume with the TV volume control. Some TVs have a fixed audio out connection. That would be the one to use if yours has it.
Hope this helps
However, if the audio outs are variable then you would have to set the volume with the TV volume control. Some TVs have a fixed audio out connection. That would be the one to use if yours has it.
Hope this helps