Indexed as a schematic, this 33.9 KB PDF for the 2SK655 is best read as a transistor datasheet, since 2SK numbers designate N-channel FETs under the Japanese JIS standard. It should include the package outline, pin functions and electrical ratings. Use it to identify terminals before desoldering, to check the device with a multimeter, and to compare specifications against candidate substitutes. Confirm the marking on the original component and its package match the document before ordering a replacement.
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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