Resetting sound fields to the initial settings, Tuner operations, Listening to fm/am radio – Sony model HTP-78SS User Manual
Page 42: Resetting sound fields to the initial, Settings, Tuner operations automatic tuning, Press ? / 1 to turn off the receiver, While holding down sound field +, press ? / 1, Press tuner repeatedly to select the fm or am band, You can also use input selector on the receiver
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