Named after the 2SC3266, this 216 KB PDF sits among schematics but is likely the part datasheet for this NPN transistor, 2SC being the JIS prefix for NPN types. No package or rating information is in the name. Before swapping the component, match the body marking and footprint with the outline drawing, confirm the pinout, and make sure a substitute has equal or better voltage, current and power 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.
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)