Marantz Receiver Bad HDMI

I’d assume my HDMI issue is unique to my system.

Using Comcast’s supplied cable box, their remote powers up cable box, my Pioneer Elite SC-07 receiver and Elite Kuro plasma sequentially.
After a few years the receiver would power up and the HDMI would fail its connectivity.
I upgraded from the Pioneer included HDMI cable to a Blue Jeans and the connection failures were reduced considerably but still occurring.
Over six years ago a local Pioneer plasma servicing technician was well aware of the issue and suggested leaving the receiver on. Problem solved ever since.

I suspect HDMI is an inherently weak design compounded by poor termination. More often than not it manages to last longer than manufactures warrantee periods.

HDMI sucks. Good concept, poor execution. The boards on Marantz and Denon do not like “hot swaps” at all. Full power off, and unplugged at BOTH ends. My Denon died replacing the ARC cable and my service guy told me to be sure both (all) HDMI swaps are done with no power supply on. This includes standbys. Anyway, I do this now and have not had an issue since.

Started to have issues with SR8012, purchased in Apr 2020 (around 7 months ago). A couple of weeks ago first HDMI input stopped working (it starts for a couple of seconds then loses signal and starts in 5 seconds again- endless loop). I started to use another input- it worked for a week or so and went out like the first one. One by one all HDMI inputs went out - it took two- three weeks.

I remember problems with Onkyo HDMI boards, basically, it was the same behavior. I used to have two Onkyo receivers manufactured in 2012, both had similar HDMI issues (the only discern was that Onkyo lost all HDMI inputs at once not step-by-step). In 2016 Onkyo ran a special repair program free of charge, I took advantage of it and they repaired both receivers. In 2019 the problem with HDMI boards came back to my both receivers, there was no free repair program anymore and I decided to replace Onkyo and bought Marantz receivers, didn't want to dive into the same problem again. I have been mistaken. Marantz seems to be even worse than Onkyo, they don't have any free repair program (yes, I will send my receiver to them and they should fix it under warranty but at least Onkyo offered free packaging material, free shipment, and free pick-up, and it was outside the warranty period, Onkyo really tried to resolve their problems though it didn't work very well).

I hope my experience will help someone make right choice nad never buy Marantz.

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This sucks, since I was about to buy a refurbished unit to act as my HT processor into my integrated