You can find official schematics and service manuals for this chassis on sites like Radio-Files . Are you trying to via USB, or Шасси TP.RT2982.PB801 схема и мануал
Posted on 12.04.2022 by Evgeniy811. Шасси TP. RT2982. PB801 схема и мануал Схема электрическая принципиальная (Schematic diagram), radio-files.ru Download RT2982 PB801 1920x1080 part01 rar
That file name refers to the universal LED TV motherboard (chassis). This board is a popular "all-in-one" solution used in various budget 32-to-50-inch smart TVs. You can find official schematics and service manuals