Schematic of Sony board MBX-193, a Quanta design with project code TW1, at revision 3E. Quanta-built VAIO boards carry these project codes on the PCB, so matching TW1 and the 3E revision is the first step before using values from this PDF. Technicians open it in any PDF reader to follow power rails, check which circuits share a rail when a short appears, find test points and identify component designators. At 1.34 MB it is a full board drawing, not just a block diagram.
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 @schematicslaptop. Enginerys does not host this file.
All sources (20)
The same file was posted more than once. If one link is dead, try the next.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.