We have a 7 yr. old 1-bit Digital Home Theater System ( SD-At1000) that worked just fine with our Sony Bravia TV. We had to purchase a new TV today, and we chose a Samsung Series 4, 403. Our Home Theater System will turn on, but doesn't have any sound. We have it hooked up right, just like we did on our Sony Bravia, so that isn't the solution. Any help would be appreciated.