A schematic diagram for Sony hardware (board MBX-224). Shared as “SONY_MBX_224_M960_M970_H_MODEL_REV_SA_SEGREDOSDOSNOTEBOOKS_COM_BR.pdf” — a .pdf file, 1.95 MB.
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 @bartonarquivos. 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)