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> Press the MODE buon as oen as required until [AUX] appears on the display.
> Play music on an external playback device.
> The volume can be adjusted using the Volume buons +/-, or using the volume
control on your external playback device.
Do not set the volume on the external playback device too low, otherwise
background noise may occur.
12 Other functions
12.1 Sleep timer
You can activate the sleep timer if you want the DIGITRADIO 231 OD to switch to
standby or switch o automatically aer a specific time.
> Press the SLEEP buon as oen as required until the desired time to switch o is
shown on the display.
Alternatively:
> Open the main menu by pressing and holding the INFO/MENU buon.