The 2SK1429 is covered by this compact 99.1 KB PDF, entered in the schematic category although a lone part number usually signals a datasheet. Under JIS rules the 2SK prefix marks an N-channel FET; maker and package are not given in the name. Open it in any PDF reader to check the terminal layout and electrical limits. That information supports in-circuit diode-mode checks, short hunting in power sections, and cross-referencing to an equivalent transistor when the original is unavailable.
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.