Compact 90.8 KB PDF identified only by the code 2SK1469. In Japanese semiconductor numbering, 2SK stands for an N-channel FET, so the schematic tag aside, this should be the datasheet for that part. Look in it for absolute maximum ratings, on-resistance, gate threshold and package dimensions. Such data supports testing a suspected shorted transistor, checking heat dissipation limits and finding a suitable equivalent. Read it in any PDF viewer after confirming the part marking on the PCB matches.
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.