Quanta CH1 project schematic, revision 2A, provided as a 970 KB PDF. No laptop brand or model appears in the name, only the Quanta code and revision, so verify the board by its silkscreen markings first. The document is aimed at component-level repair: reading the power tree, locating regulators and switching MOSFETs, following enable and power-good signals and finding which parts sit on a shorted net. A standard PDF reader opens it, and searching for net labels speeds up movement between sheets.
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 @abgm_manutencao_esquemas. 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.