Sized at 49.6 KB, this PDF is named 2SA2014, which under the Japanese JIS system identifies a PNP bipolar transistor. Despite sitting in the schematic category it is most probably that part's datasheet. No package, manufacturer or grade is given in the name. Use it to look up the pinout, voltage and current ratings and gain range, and check the marking code printed on the component against the sheet before ordering a replacement or choosing a cross-reference.
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.