Here is a 157 KB PDF named after the 2SA1479, filed as a schematic yet most likely a transistor data sheet. Under JIS rules, 2SA denotes PNP polarity. Beyond the part number the name is silent on manufacturer and package. Typical contents are ratings tables, gain classification, graphs and outline drawings. Use it to read the pinout, compare limits when picking a replacement and confirm the part type during fault-finding. Any common PDF viewer will open the document.
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.