A 30.5 KB PDF carrying the 2SA1528 part number; it is filed as a schematic, but a file named after one transistor is normally its datasheet. Per JIS conventions, 2SA indicates a PNP high-frequency transistor. Use it to read the pinout for in-circuit diode-mode checks, and to compare voltage, current and gain specifications against any replacement under consideration. Any PDF viewer opens it; check the marking on the board, including gain-class letters, before relying on the data.
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.