I replaced the main board in the tv. The replacement board has identical numbers as the old one except for manufacture date. Other than that it’s identical.
RCA RTU6549
65” non smart tv.
Has split screen, with identical screens side by side.
I can’t find anything on the remote or settings about picture in picture.
Does anyone know what I could do to fix this?
https://pasteboard.co/INhUwMi.jpg