Hi, I have recently purchased a Philips TV Model No 37PFL5522 & I have connected the surround sound system (above) as I had on my old TV a Philips 28PW6506/05. The connection has been via the audio cables, from the TV "Audio In" to the surround sound "Audio In", this was as before on my old TV. But I can not get any sound to come out of the surround sound system. Can you please help? Thanks, Kev