Thank you very much Francisco, I will follow your recommendation and I will let you know the result later
I reiterate my thanks again, today I opened the TV again and looked for the data.
It uses 4 strips of 9 led c / u 3.5 v according to the source table, Red 6916-1030A (2) and Red 6916L-1031A (2) interleaving each other, in addition to the UT 5CEB D4 connectors.
I pass the data in case they are useful to you.
Thank you very much again