Part datasheet in PDF form, 119 KB, for the 2SA1403, though the catalogue type reads schematic. Under the JIS system, 2SA numbers denote PNP transistors for high-frequency service. The name holds only the part number, so manufacturer and grade must be read inside. Practical uses include identifying pins before an in-circuit test, reviewing absolute maximum ratings and gain ranges, and verifying that any substitute is a genuine match rather than just a similar number.
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.