Horizontal black lines on screen

[Theo123]

Hello Everyone

I need your help to repair my poor Samsung TV which decided not to let me watch my favorites series in the afternoon. Suddenly black horizontal lines appeared on the screen making my life a hell

Photo:
https://ibb.co/Kyhm9M5 
Close up photo:
https://ibb.co/zNtv4XP

I have seen many youtube videos with guys who put a tape in ribbon cable and TV fixed in a magic way (I have tried without success).

My TV model is: LE46C750R2W
Photo:
https://ibb.co/Q6RFN94

I have tried to disconnect one ribbon cable at a time to see what happens on the screen. unfortunately didn't happened what always happened on movies where everything is fixed in a real magic way and everyone is happy running laughing through green meadows. When i disconnected the right ribbon cable I saw on the right half of the screen the content with horizontal lines. The left half was white.
Photos:
https://ibb.co/zSRS3bV

When I disconnected the left ribbon cable I saw the right half of the screen just white and the left half black.
Photos:
https://ibb.co/4gp6PYs

T-con board
Photos:
https://ibb.co/Sn3h32J
https://ibb.co/WPmY3wY

And I am wondering now. Am I a completely idiot looser who must be disappeared from earth face or there is a hope to help me one of this Team member ?
Is T-com board for garbage or I need to put simple a tape in the correct pins on ribbon cable ?

[m k]

Seems to be a memory problem, possibly just one power line.
Other thing is how to find it and then repair it.