Brief 35.7 KB PDF covering the 2SC5536 NPN transistor, filed as a schematic in the index. Per Japanese JIS naming, the 2SC prefix indicates an NPN bipolar device, and the document is most likely its datasheet with absolute limits, characteristics and outline. The name carries no package or manufacturer clue. Use it to work out pin order for measurement, check whether a substitute meets voltage and current needs, and confirm package dimensions. Read the marking on the original part before relying on these figures.
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.