Quanta laptop schematic labelled only with the project code BL6, supplied as a 5 MB PDF. The name gives no board number, revision or end brand, so the target notebook must be identified by matching the BL6 code, normally found inside a DA0BL6MB-style number printed on the motherboard. Once matched, the diagram helps follow the power-on sequence, check voltage rails, find the EC and BIOS chip connections and work out which components sit on a shorted line. Any PDF viewer will open it.
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 @pepeelectronica. 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.