Circuit diagram for the Quanta GC9 mainboard, board number DA0GC9MB8D0, marked revision D, supplied as a 1.38 MB PDF. Quanta builds laptops for several brands, and the DA0 prefix followed by the project code is how its boards are labelled. The sheets help with tracing standby and main power rails, locating the EC and BIOS chip, and working out why a board shorts or will not power on. Check that the revision printed near the board number matches, because component placement can change between revisions.
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 @afsschematicfree. 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.