I have a slv-d550p combo unit that had been working since day one. Today my wife put in a dvd and there is video but no sound. I have checked all the settings and connections and even changed conections but still no sound. ( the vhs side works fine) I don't think we have played more than 10-15 dvd' on this machine in the 8 months we have had it. Any help is appreciated.

Thanks

Darrell Bamsch