PDF datasheet, 117 KB, for the 2SK1460, a Japanese-designated N-channel field-effect transistor, filed under schematics in the catalogue. A separate LS-suffixed variant exists in the same collection, so note which version is fitted on the board. The document should give pinout, voltage and current limits, characteristics and package drawing, used when testing for a short, verifying ratings or selecting a replacement. Opens in any PDF reader; confirm the exact marking including any suffix.
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.