PDF component sheet for the 2SC3481, 131 KB in size and catalogued with schematics. The file name holds just the part number; the 2SC prefix is the JIS designation for NPN bipolar transistors aimed at high-frequency circuits. Repair use centres on terminal identification, maximum voltage and current, power dissipation and gain figures that determine whether a substitute will work. Open it in a standard PDF reader. Confirm the marking and package on the board correspond to the sheet before relying on its pin assignment.
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.