Schematic PDF labelled QK1 with revision A, about 3.13 MB. The brand, laptop model and board maker are not given in the name, so identify the design from the title block and the codes printed on the PCB. A drawing of this size usually covers the full main board, making it useful for tracing power rails, following signals between controllers, locating test points and finding the part responsible for a short. Make sure the revision on the board matches before trusting component values or placements.
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 @ithinkhs_casediscussion. 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.