Listed as a schematic, this 87.9 KB PDF carries the code 72cpq030 and nothing else: no brand, laptop model or board revision. The token reads like a component part number, so expect pin assignments, ratings and package drawings rather than a complete motherboard circuit, although the file is filed under schematics. It opens in any standard PDF viewer. Before swapping a part based on it, check that the marking on the faulty component really matches this code and package.
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.