Sony schematic PDF, 9.78 MB, with a short, uninformative name that does not state the model or board number. The size suggests a multi-page service document, but the exact device must be confirmed by opening it and reading the title block. Sony service schematics show the circuit layout, part references and test points, and a technician uses them to trace power rails and signals and locate faulty parts. Compare the model and board markings before relying on it."}
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 @datasheets1. 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)