Compact 29.9 KB PDF titled with the part number 2sk301 only. The 2SK prefix under JIS rules marks an N-channel FET, so this is best treated as a component data sheet despite the schematic label. A file this small probably holds a one or two page summary with pinout and key ratings. Use it while testing the transistor out of circuit or when hunting for a substitute, and double-check lead orientation, as Japanese small-signal FET packages vary between makers.
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)