Schematic in PDF form, 8.21 MB, catalogued under Clevo, with the file name reading only le22p600, which gives no clear model or board number. Open it in any PDF reader and check the title block for the project and revision. A full circuit diagram lets a technician trace power rails, follow signals between chips and connectors, read component values and check power sequencing. Compare the reference designators and board revision with the actual PCB before relying on it, as Clevo boards come in many versions.
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 @pdf_servicemanual. 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.