PDF covering the 2SA1452A transistor, 233 KB, indexed in the schematic section. The 2SA prefix in the JIS system marks a PNP device intended for high-frequency use, and a trailing letter A usually indicates a revised or upgraded variant of the base type, so do not assume it is identical to the plain 2SA1452. The sheet should list ratings, gain groups and package outline. Confirm the exact suffix on the component and the pin order on the board before ordering or fitting 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.