Schematic PDF named NP R510, roughly 4.82 MB, which corresponds to Samsung's NP-R510 notebook naming, although no board number or revision appears in the name. A full laptop schematic like this lets you follow the power-on sequence, trace each rail from the charger input through to the CPU, check enable and power-good signals and read component values. Since the board number is not stated, compare the PCB code printed on your mainboard with the title block inside the PDF before trusting part values.
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 @pepeelectronica. 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.