I have a curious problem with my home cinema set up. I have an HDMI lead from the cable box to the AV receiver, and another HDMI from the receiver to the TV. Normally it works fine, but sometimes I lose video and audio. The video is totally gone, whilst the audio comes back every minute or so for about 5 seconds. It does not cure itself.
The cable company says it is not a cable box issue, and say that it looks like an HDMI issue.
If I swap out the lead from the cable box to the receiver, nothing changes. But if I connect the lead from the receiver to the TV directly into the cable box then I get video and audio.
That suggests that the receiver is at fault, but the same thing happened with my previous all in one home cinema set up. So, I am rather confused especially as after all this cable swapping, I can then revert to the normal cable set up through the receiver and it all works fine for another few days before it all starts again.
Any ideas? I am into crazy theories of cable static, capacitance, heat related cable problems, arcing between pins causing deposits on the pins........