Hello there. I'm having a problem with my new 510. It seems that it sends out a voltage signal (from the rca jacks) even when the unit is powered off. It fools my Sony A/V switcher into never powering down (it's set to turn off after 10 minutes of no signal). None of my other equipment sends out a signal when they are turned off. I called Dish and 2 techs (one sub-level and another advanced) swore to Holy God that there's no way it would be sending out a signal. I tested this on my two tvs , my a/v receiver and my switcher and it is definately sending out a signal. I can't see a picture or hear sound, it's just a dark picture. Any ideas on this? Anyone else notice this? Please help. Thanks.