1 rotate function to select the tuner, 2 press fm/am to select the fm or am band, 3 press tuning + or tuning – Sony STR-DB930 User Manual
Page 45: Presetting radio stations, When the receiver reaches either end of the band, Press memory, 6 press memory again to store the station, 7 repeat steps 2 to 6 to preset another station, To change a preset number to another station, Automatic tuning preset tuning

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