Circuit diagram for the Compal motherboard LA-A901P, in PDF format at 1.08 MB. Apart from the board code the name gives no details, so the laptop model and revision have to be confirmed from the board itself. LA-numbered boards are Compal designs used in notebooks from several brands. The schematic helps trace power rails, charger and EC circuits, find where signals connect and identify which part drags a rail to ground. Check that the silkscreen on the PCB matches before using 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 @notebookschematic. 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.