I'm 84, bought a new Sony HT XT 100 soundbase and thought it was just a case of connecting to the TV. I did this and switched on the remote which gave sound but nothing different from just using TV sound. Having no manual I just kept pressing remote buttons in an attempt to get this exciting new sound I'd heard about - result no sound at all from the sound base! How do I put this right and is it necessary to get an engineer to set the thing up?