The 2SK1420, an N-channel FET according to the Japanese JIS 2SK prefix, is the subject of this 103 KB PDF. It is indexed as a schematic but named for a single part, which typically means a datasheet. No package, manufacturer or ratings are given in the name. Technicians rely on such a document for the pinout during multimeter checks, for voltage and current limits when choosing a substitute, and for correct orientation when installing the replacement.
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)