Reference PDF for the 2SK2714 transistor, 144 KB, filed in the schematic section. JIS naming uses 2SK for N-channel field-effect transistors, so the contents should be a datasheet with ratings, curves and the package drawing. An alternative copy with a 1-5 suffix also exists for comparison. Use the document to locate pins before probing, confirm the device suits the circuit voltage and current, and compare equivalents. The name carries no manufacturer, package or revision details beyond the part number.
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.