Reference for the 2SA1497 transistor in an 88.3 KB PDF, catalogued as a schematic. The JIS 2SA prefix marks it as a PNP device. The name carries nothing beyond the part number. A sheet of this size likely holds rating tables plus characteristic curves and an outline. For repair, the key uses are confirming lead assignment, checking voltage, current and power limits, and selecting a cross-reference replacement. Make sure the marking on the board matches before trusting the pinout shown.
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.