Is this in Qsymphony mode? I have the same hardware, but only when in Qsymphony mode the TV speakers will drop out for 2 seconds every 10-15 seconds continuously until the TV is AC cycled. Then after ~1 hour, it will start again. When in this bad mode, TV speakers alone or soundbar alone work. But if I switch back to Qsymphony it is still bad. Only recovery appears to be AC cycle.
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