PDF schematic for Sony motherboard MBX-250, 1.68 MB in size, with no VAIO model or revision given in the name. Sony labels its laptop boards with MBX numbers, while an ODM such as Quanta or Foxconn usually handles the actual design. Use it to follow power rails, check charging and CPU power circuits and find components on a shorted line. Any PDF reader works. Before relying on values, confirm that the MBX code and revision printed on the board match this drawing.
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.