Reference document for the 2SB1398 transistor, with an _E suffix in the name that is not explained and may indicate an edition or language version. Filed as a schematic, the 43.2 KB PDF is in practice a component datasheet. Under Japanese JIS numbering, 2SB identifies a PNP low-frequency bipolar transistor. Use it to confirm pin assignments and package dimensions, and to check absolute maximum ratings and gain before installing a replacement. Match the part marking on the board to this number first.
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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