My sound has been acting up for a few weeks now on my Pioneer sc-97 receiver with arc hdmi I out. to my Samsung tv. Which has been working perfect for the last 4 years. Now when I turn the tv on for the first time in the morning everything works fine external speaker, video ,etc .And for as long as it is on. Once I turn everything off and turn in on again could be one ,2,3,4,5,6,7 hours later no sound from the receiver. Just get video on the tv. Then next morning when I turn it on it works again. Till I turn it off again same thing happens. Seems if it is left off for 12 or more hours the sound and everything works fine the first time it is turn on. Then again soon as I turn it off and back on again I get video but no sound. Its almost like a memory dump happens after a long period of time passes when the the receiver is off. Or might be an on going progression that eventually there will be no sound at all. Could it be a hardware problem. Like the arc hdmi 1 socket bad or software issue controlling the HDCP handshake in the receiver. Tried new cables , tv , all resets updates, settings are all correct. Seems something is failing.Or not communicating. Any advice.Thanks.