Hi, I just received my newly refurbished JVC 30k for 299 from eCost. I finally got it all hooked up, was a ***** since I have very little space in my rack left. Everything seemed to work fine, but I am having problems with switch box. I have a SA4200HD hooked up and it always outputs a video signal, so the only time I can watch it is when everything else hooked up to the switch box is off. Well it looks like the JVC has a weird problem. When the optical cable is hooked up, regardless of whether or not it is on, it always outputs a signal to my switch box. This is causing a problem as the optical audio signal tell the switch box to tune to that channel. Does anyone else use there jvc with a switch box??? Is there any way to prevent the JVC from putting out an audio signal at all times??? Please help!! Thanks.