- I have a Vizio V505-H9 TV. I bought a Samsung soundbar HW-T510 to use as my primary sound. I have them connected via HDMI eARC. The first 4 months I had no issues. Recently when I turn up or down the volume there is a delay between the speaker and TV. So if I turn the volume up from 10 to 15 the speaker digit goes up but TV stays a few seconds the TV catches up and volume corrects it self to the correct level. Any ideas what could cause this?