Circuit diagram in PDF for the Quanta LV6 laptop motherboard project, roughly 5.45 MB. The name gives only the Quanta project code, with no full board number, revision or laptop brand, so identify your board by the code printed on the PCB before relying on it. Schematics like this let a technician trace power rails from the charger and PWM controllers to the CPU, follow enable and power-good signals, and read reference designators and component values. Any PDF reader opens it, and text search helps find net names quickly.
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.