The 2SA1765 PNP bipolar transistor, identified by its JIS 2SA prefix, is the subject of this 99.6 KB PDF catalogued as a schematic. Expect a standard semiconductor datasheet with package drawing, pin order, absolute maximum ratings and hFE tables. No maker or revision appears in the name. When diagnosing a failed stage, use it to verify pins before diode-mode checks and make sure any substitute has equal or higher voltage and power ratings in the same package.
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.