Part documentation for the 2SC4075 in PDF format, 73.6 KB, listed among schematics. The name follows the Japanese JIS code, where 2SC means an NPN bipolar transistor. No package, maker or revision is given. A technician would open it in any PDF reader to look up pin configuration, maximum collector current and voltage, and power dissipation before replacing a damaged device or cross-referencing an alternative. Since SMD transistors often carry abbreviated markings, confirm the identification against the board or service manual.
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.