Component document for the 2SB1335, PDF format, 57.4 KB, indexed in the schematic section. The _1-2 ending possibly denotes a section or revision, but the name does not make that clear. According to JIS numbering, a 2SB part is a PNP transistor for low-frequency use. A smaller standalone sheet for the same number is also listed here. Open it with a PDF reader to check pin functions, mechanical outline and absolute maximum ratings before fitting a replacement.
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.