PDF schematic of 462 KB titled G1S, with no brand, board number or revision in the name beyond that model token. Open it in a PDF reader and check the title block to learn which mainboard it describes, then compare with the number printed on the PCB. A laptop or motherboard schematic is used for tracing input power and charging, standby and main rails, the CPU regulator and the power-on sequence, and for locating fuses, MOSFETs and test points when measuring a short. Do not rely on values until the board match is confirmed.
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 @cyberlanelectonik. 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.