This 74 KB PDF covers the 2SC2411K, an NPN part in the JIS 2SC series with a K suffix. Although listed as a schematic, it is most likely the manufacturer datasheet. It helps technicians decode the tiny marking code printed on the device body and read the pinout of the package. Check the maximum voltage, current and dissipation figures when looking for a replacement, and confirm the footprint matches the pads on the board before soldering.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)