For the 2SA1213 there is this 224 KB PDF, categorised as a schematic, though the part-number-only name points to a component datasheet. JIS designations starting with 2SA cover PNP bipolar transistors. Open it in any PDF reader to check pin assignment, ratings and package dimensions before working on the board. Surface-mount parts frequently carry abbreviated marking codes, so compare the code on the body with the sheet, and ensure a substitute matches both electrical limits and footprint orientation.
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.