In the middle of watching a program and the surround sound speakers quit working which came with the RCA BluRay RTB10230. The BluRay is hooked to the Panasonic 46" 760 with an HDMI cable, this would not allow the surround sound to work. Had to use the RCA red and white cables for sound. Set all to PCM and surround sound. The BluRay will not longer "test tone" the speakers, nothing comes out of the speakers at all.