Datasheet in PDF form, 1.93 MB, for the component marked k3569. The name gives only the part marking, which is commonly a Toshiba power MOSFET code, though the exact maker should be read from the document. Technicians use such a sheet to check pinout, voltage and current ratings, gate threshold and package before replacing a failed part or picking a substitute. Compare the marking and package on the board with the document before ordering.
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 @datasheets0. 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)