Part number 2SC5714 names this 166 KB PDF. Under the Japanese JIS scheme, 2SC parts are NPN bipolar transistors, so the document should list electrical ratings and a pinout rather than a board circuit. No package or maker is given. Use it while troubleshooting to test junctions correctly, identify the collector tab or leg, and ensure a replacement meets or exceeds the listed limits. Check any suffix letter on the original part, since it may indicate a gain class.
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.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.