You should consider changing the ports being used by cable box and soundbar.No because the cable TV signal HDMI plug is plugged into it. I did move the cable TV HDMI plug into HDMI 2, and got a picture, but no sound from the TV internal speakers.
No because the cable TV signal HDMI plug is plugged into it. I did move the cable TV HDMI plug into HDMI 2, and got a picture, but no sound from the TV internal speakers.According to page 34 of the manual, HDMI1 is your ARC port (for the soundbar connection). Is that how you are connected to it?
https://www.sony.com/electronics/support/res/manuals/4562/45622791M.pdf
You should consider changing the ports being used by cable box and soundbar.No because the cable TV signal HDMI plug is plugged into it. I did move the cable TV HDMI plug into HDMI 2, and got a picture, but no sound from the TV internal speakers.