New Problem: Just swapped to "new" 8640 due to old unit locking up. The 8640 has component going directly to display and HDMI going to my receiver. I do not use both at the same time. Component output works fine....HDMI does not...no picture, no sound. HDMI direct to display (even with component disconnected) does not work. Do I have an 8640 with no HDMI output (hardware problem) or?? The previous 8640 worked fine with this setup before it died.
10/14/12 at 8:47am