Hi there, I have marantz SR7005 that i bought brand new few years back. It was great all these years. From last few days I am experiencing occasional 3-5 seconds black out every 10 minutes or so. No audio or video for few seconds and it comes back. I've tried changingall hdmi cables, hard reset it but no luck so far. I've also tried several things to rule out blue ray player or projector. Could it be the digital port on the reciever? Appreciate your help.