Reference document for the 2SK1436 transistor, supplied as a 105 KB PDF and listed under schematics. In JIS part numbering, 2SK denotes an N-channel field-effect transistor, so this is most likely the manufacturer datasheet. The file name carries no package or rating details. A repair technician would open it in any PDF reader to check the pin assignment and absolute maximum ratings before measuring the part in circuit or swapping it for an equivalent device with matching or better specifications.
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.