Schematic for a board labelled Z96Jm, revision 1.0, stored as a PDF. The name identifies no brand or laptop model, so check the title block and the board silkscreen to confirm the match, including the revision. Circuit drawings like this are used to follow power rails from the charger input through to the CPU and memory supplies, identify enable and power good signals, and find the components to measure when a rail is missing or shorted. Any PDF reader with text search for net names works well.
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 @alischematics. 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.