Operation problem

I am using rs150 as a multi media player.
But i am facing some problem during it connect to my tv through EARC.

The sound will be delayed, sometimes it becomes distorted or no sound generated.
After restarted the device the first issue can be solved, and the following two can be solved through reselecting the output. Those actions influenced my using experience.

Sometimes , my device will turn on with dimmed display during standby mode. And one time the device display entered the testing mode( only display red ,green blue screen accordingly) but other function can operate normally.

May i know is there any one off action to clear those problem. Please let me know if there any information you required, thank you.

I experienced similar sound delayed issue with the ARC output sometimes from my 150B. It can be solved by restarting the device as Benben said.
Videowise, I don’t have any problem.
On other amps with ARC or eARC support I had before, some of them provide a feature to adjust sound output timing so as to sync sound and video properly.
Rose please consider to add this feature to your devices. I appreciate it.

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