Reference PDF covering the 1SV305 diode, sized at about 71 KB and placed under schematics. In the Japanese JIS numbering, 1SV indicates a diode, and Toshiba's 1SV series are variable-capacitance tuning diodes. Only the part number appears in the name. Use the sheet to look up the package outline, marking and capacitance-versus-reverse-voltage curve when diagnosing a drifting oscillator or tuner. Confirm the component marking matches before trusting the data for 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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.