Datasheet-style PDF of 142 KB for the 2SK2299N, listed as a schematic. In JIS nomenclature 2SK identifies N-channel field-effect transistors, and the trailing N is part of the stated type number. Expect maximum voltage and current, on-resistance, gate characteristics and a package drawing. This information supports in-circuit testing and selection of an equivalent for a damaged power stage. A near-identical variant with an _1-5 suffix also exists, so confirm the marking on your component matches before relying on either.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.