PDF schematic for a Sony VAIO laptop motherboard identified by the Sony internal code MBX-147. The name gives no ODM project code or revision, so check the silkscreen on the PCB and the revision block inside the drawing before you trust a component value. Sony MBX numbers were applied to boards produced by contract manufacturers such as Quanta, Foxconn or Inventec. Any PDF reader will open it, and the text search helps when tracing rails, finding a shorted capacitor or following the power-on sequence.
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.