PDF of 42.2 KB named 2SA1982 with an _E suffix, which commonly marks an English-language edition, though the name does not confirm this. The 2SA prefix is the JIS designation for a PNP bipolar transistor, so the content is probably a datasheet rather than a schematic. No maker or package is given. Use it to read the pinout and ratings before in-circuit testing, and compare the package outline and marking with the fitted part when choosing a replacement.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)