The 2SA1934 is documented in this 237 KB PDF, filed under schematics although the name carries only a component code. Because 2SA marks a PNP bipolar transistor in the Japanese JIS system, the content should be a datasheet with pinout, outline drawing, absolute maximum ratings and characteristic graphs. Repair use includes identifying terminals before fitting a new part, checking hFE grading, and making sure a cross-referenced equivalent can handle the same collector voltage, current and dissipation.
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.