When I turned on my plasma display, I heard a moderately loud pop and the screen never came on. The LED which normally turns to from red to green when the display is on is flashing red in groups of 5. I have tried a hard and soft reset. When I turn it on now, the LED turns green for 3 seconds, then I hear it click of and get the 5 flashes again. Does anyone know what the 5 flashes mean? Is there anything else I can do before calling for repair?