A 120 KB PDF for the 2SK1578, an N-channel FET according to its Japanese 2SK designation. The name offers no manufacturer, package or revision, so those must be confirmed inside the document. This kind of datasheet supports repair work by showing the gate, drain and source pins, maximum voltage and current, and switching data needed for cross-referencing. Confirm the replacement footprint matches the board pads before soldering an alternative part.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)