Document for the BD9486F, 897 KB PDF, filed as a schematic. The BD prefix is used by ROHM for its ICs, and this part number appears on LED backlight driver sections of LCD TV boards, though the name itself gives no device. Expect a datasheet with pin descriptions, protection functions and an application circuit. Use it to check enable and dimming inputs, current sensing and MOSFET gate drive when the backlight stays off or shuts down. Verify the code and package on the board match before trusting pin numbers.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @gunvantrathore. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.