Sony VAIO schematic for the MBX-149 mainboard, revision 2.0, tagged with the internal model code MS12. MBX numbers are Sony's own mainboard designations, while the underlying design is usually produced by an ODM, so the MS code on the board helps confirm the match. The 1.57 MB PDF lets you trace power rails, check the sequencing of enable signals and locate parts tied to a short. Verify the MBX number and revision on the PCB before relying on component values.
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 @smschematics. 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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)