A schematic diagram for Sony hardware (board MBX-149). Shared as “SONY_MS10_MP_MBX149 955_945gm_pm.pdf” — a .pdf file, 1.72 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 @nityatechnology2020. 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)