A 296 KB PDF identified only by the JEDEC-style part code 2N5769. The catalogue lists it as a schematic, yet the name points to a single discrete semiconductor, so its content is most likely a datasheet rather than a motherboard drawing. Repair work with such a sheet usually means checking leg order before soldering, reading voltage and current ratings, and finding a suitable equivalent when the original is unavailable. Verify the marking on the component itself, as the name gives no board, revision or maker.
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.