Samsung NP-R522 notebook schematic in PDF, project code Bonn, INT variant, which usually indicates integrated graphics. Samsung designs carry city code names, and this one appears in the board title block. The document is useful for tracing the power supply chain, checking the charger and regulator outputs, and locating the parts around a short. Make sure the board in hand is the integrated graphics version, since a discrete graphics variant would differ in the video and power sections.
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 @afsschematicfree. 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.