"To ARC or NOT to ARC. That is the question."
Have had the P75-F1 for a little over a month now. After getting acquainted with the unit, did some minor tweaks and adjusted the picture settings to best fit my viewing room and, overall, pleased with the purchase. Quality and features are a definite step up from previous display.
One area that I wanted to improve was the sound quality. Already have a fairly robust home theater / HiFi system for watching movies, etc but it is overkill for OTA and casual viewing. So, picked up a Yamaha YAS-108 / ATS-1080 sound bar from Amazon. This is a nice unit that supports HDMI/ARC, has HDMI pass thru, optical, RCA / Analogue and BT (will support two devices). Due to the way we want to use the sound bar (and remotes), the preferred method of connection is HDMI / ARC. And the games begin.
Long story short is that I am able to get it to work but it is flaky. Configured thru the HDMI 1 input on the Vizio. Set the "System/CEC" option to "ARC / ONLY" (more on that later). The set will easily "see" the Yamaha while doing a device search thru the System/CEC menu. Typically, when I power up the P75, it will start the sound bar after Vizio completes boot/init. But, there is no volume control. I discovered that if I toggle the power on the Yamaha, everything will work perfectly after the Yamaha comes back up.
At this stage, I'm not sure if the problem is in the Vizio or Yamaha. BTW, I don't think anything has changed on the settings of the Yamaha. There is a "INFO" button on the remote that will activate LED's on the top of the unit to show status. The settings within the Yamaha appear to remain the same before and after toggling the power on the Yamaha. Obviously, I don't want to have to manually toggle the sound bar every time I turn on the unit.
One other item that I discovered in the process is that cable boxes don't seem to play nice with other HDMI devices attached to the Vizio. I was able to get things fairly stable with CEC enabled for a Sony BluRay player until I connected the cable box and it just blew the CEC settings away. Not a big deal because I prefer to use a Logitech 650 Universal Remote for operating peripherals...though it would be nice to have the option to use the Vizio remote.
I think I'm doing it right. Can anyone offer any insights on how to eliminate the need to toggle the power on the Yamaha?