Small 27.9 KB PDF for the 2SC4630LS, sorted into schematics though it reads as a transistor datasheet. A 2SC part under JIS designation rules is an NPN bipolar transistor. The LS suffix likely denotes a variant of the base 2SC4630, but the name gives no explanation. Because suffix versions can change the case or lead arrangement, check the outline drawing against the removed part. Use the ratings to confirm that any substitute meets or exceeds the original limits.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.