On the front panel is a single Listening selector switch that toggles between Phono, CD, tuner, tape 1 , tape 2, and a corrresponding LED that moves to show your current selection. While switching today, the LED went out and so did the sound. There is still power to the front panel; the other LED's work, so its not a fuse. Any ideas? And if I have to replace it and still want phono support in a preamp, is there another choice out there besides replacing it with the same model?