A 206 KB PDF filed as a schematic and identified only by the code 50RIA, with no laptop model, brand or board revision. The name resembles a part-series designation for a power semiconductor, so the document is probably a datasheet covering ratings, package drawings and possibly several voltage variants. It serves as a reference when testing or replacing a high-current part. Open it with any PDF reader, and match the complete marking on the component against the variants listed before choosing a replacement.
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 @cyberlanelectonik. 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.