Schematic for the Z96Jm board, revision 1.0, provided as a PDF of about 1.31 MB. No brand or laptop model is named, so the code and revision on the PCB should be confirmed first. Technicians use such a diagram to follow power distribution, find the regulators and their enable signals, measure test points, and track down components shorting a rail. It opens in any PDF viewer. Later revisions of the same design may change components, so a 1.0 marking on the board is the safest match.
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 @CLRINDORE. 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.