A 375 KB PDF for the 2SK2615, listed among schematics but in practice describing a single N-channel FET, as the JIS 2SK prefix indicates. The larger size suggests a full datasheet including characteristic curves, safe operating area or switching data, and the mechanical drawing. Repair use centres on identifying pins, interpreting meter readings on a suspect device and choosing a replacement with equal or better ratings. Confirm the package style against the board footprint.
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.