Component PDF of 133 KB for the 2SA1705, filed as a schematic but named after the part only, with no device or board information. In Japanese JIS naming the 2SA prefix means a PNP bipolar transistor, so the file is most likely its datasheet. Look here for pin assignment, absolute maximum ratings, gain classes and package dimensions. When a stage fails, the data helps you test the transistor's junctions, interpret readings correctly for a PNP type, and choose a replacement that fits the footprint and ratings.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.