The 2SA1352 is the only identifier in this 149 KB PDF name, so treat it as the transistor datasheet even though the index calls it a schematic. JIS convention reserves the 2SA prefix for high-frequency PNP transistors. The sheet helps determine which pin is base, collector or emitter, the safe voltage and current limits and the available hFE ranks. Before ordering a replacement, confirm that the body code reads A1352 and that the package matches the footprint on the board.
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.