Only 2SC3417 appears in the name of this 151 KB PDF, filed as a schematic. The 2SC prefix follows the Japanese JIS numbering used for NPN bipolar transistors, so the file probably holds the component datasheet. Use it for confirming pinout, reviewing breakdown voltage, current and dissipation ratings, and checking package dimensions for a replacement. The name gives no manufacturer or grade information, so match the marking and case style on the faulty transistor before fitting a new one.
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.