Datasheet-type PDF, 123 KB, for part 2SC3650. The JIS naming system reserves the 2SC prefix for NPN bipolar transistors. The name carries nothing more, so despite the schematic label expect specifications rather than a board drawing: maximum ratings, hFE classification and package information. It supports component-level repair by confirming the lead order for meter tests and by providing the figures needed to choose a replacement that will survive the circuit conditions.
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.