PDF, 502 KB, identified by the transistor number 2SC2668 and placed in the schematic category, though it is presumably a datasheet. In Japanese JIS numbering, 2SC means an NPN bipolar transistor. The name gives no manufacturer, package or grade information. Useful repair content includes pin assignment, maximum ratings, frequency characteristics and package dimensions for fitting replacements. Check that the marking on the faulty component matches this part number before trusting 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.