Reference PDF of 104 KB for the 2SC3255, a part named under the JIS convention where 2SC stands for NPN transistors. It is catalogued as a schematic, but the content is expected to be a single-component datasheet. No further details appear in the name. Read the pinout and outline before desoldering, note the maximum voltage and current, and compare these with any substitute so the repaired circuit stays within limits.
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)