PDF reference for the 2SD200, a part from the 2SD range of NPN bipolar transistors, indexed as a schematic but probably a datasheet; the name states nothing beyond the number. At 74 KB it is a brief sheet with ratings and case outline. Read it in any PDF viewer to identify pins, compare maximum voltage, current and power dissipation with candidate substitutes, and test the original part for open or shorted junctions before deciding it must be replaced.
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)