Laptop schematic labelled scala3-14, which appears to be a platform or project code name, delivered as a 1 MB PDF. No brand, board number or revision is given in the name, so identifying which notebook it belongs to requires comparing project names or board markings on the actual PCB. Schematics of this kind are used to trace power rails, check enable signals and locate the source of shorts. Open it in any PDF viewer and verify the project name on the board before relying on component 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 @notebookschematic. 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.