Reference PDF for the 2SA1320 transistor, the largest in this group at 288 KB, which suggests more detailed curves or package information. Under JIS naming, the 2SA prefix indicates a PNP transistor for high-frequency service. Use the sheet to look up base, collector and emitter positions, absolute maximum ratings and gain classes. That data guides diagnosis of shorted or open junctions and selection of a suitable replacement; check the part marking and package before trusting the pinout.
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.