Short 40.1 KB PDF covering the 2SC3187, catalogued as a schematic yet most likely a transistor datasheet. The 2SC prefix denotes an NPN device in the Japanese JIS scheme, while the _E suffix may indicate an English-language edition, which the name does not confirm. Read the pinout, outline drawing and maximum ratings before replacing the part, and compare the marking on the board component with the number in the document.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)