I have a 55-inch TCL TV with a T-Con board model ST5461D04-1-C-7.

I saw on the internet that if one of the panel ribbon cables is disconnected, the TV may display half of the screen. However, in my case, when I disconnect either ribbon cable, that side of the screen turns completely white. The same thing happens on the other side as well.

There is no picture at all—only a white screen appears when either ribbon cable is removed.

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