PDF schematic for the Sony MBX-163 laptop motherboard, with MS60 in the name, probably the ODM project code tied to this board; the file is 1.04 MB. Sony uses MBX numbers to identify VAIO mainboards, and the same code appears on the PCB, so confirm it before working. Technicians use this kind of circuit diagram to follow power rails from the adapter jack, check charger and regulator outputs, find the enable signals for each rail and narrow down shorts. Any standard PDF viewer opens 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 @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.