A 120 KB PDF for the 2SK2083, indexed under schematics but most probably the component datasheet. The 2SK designation is the Japanese JIS code for N-channel field-effect transistors. The name states no manufacturer, package or revision. Technicians open such a file in any PDF reader to confirm which pins are gate, drain and source, read the breakdown voltage and current rating, and decide whether a substitute MOSFET is electrically and mechanically suitable.
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)