Schematic for the ASUS N73Sv laptop in PDF format, 1.47 MB; the name does not give the board revision. A service schematic like this shows the power path from the adapter and battery charger through the system and CPU regulators, signal connections between chipset, GPU and connectors, and the values of individual parts. Technicians use it to find why a rail is missing, check what sits on a shorted net and follow power-on sequencing. Open it in any PDF viewer and verify the board revision on the PCB against the title block.
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 @schematicslaptop. 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.