Catalogued as a schematic, this 361 KB PDF carries only the part number 2SJ567 in its name. Under the Japanese JIS semiconductor naming system the 2SJ prefix marks a P-channel field-effect transistor, so the document is most likely a component datasheet rather than a board circuit diagram. Technicians open such a sheet in any PDF reader to check pinout, package, voltage and current ratings and on-resistance before fitting a replacement, and should confirm the full marking on the original part, including suffix letters.
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 @cyberlanelectonik. 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.