A schematic diagram for Samsung hardware (board BA41-01473A). Shared as “SAMSUNG BA41-01473A NP-RF511.pdf” — a .pdf file, 1.01 MB.
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 @bartonarquivos. 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.