PDF sheet of 38.4 KB for the 2SD2575, with an _E suffix in the file name. Filed as a schematic, it most likely holds datasheet content, because 2SD is the JIS code for NPN bipolar transistors meant for low-frequency applications. Manufacturer and package are not identified. Use it to verify base, collector and emitter pins, read breakdown voltage and maximum current, and make sure the component on the board is marked 2SD2575 before using the data to diagnose or replace it.
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.