LG 32UL950-W.AUS Owner's Manual page 22

[Settings] > [General]
[Buzzer] This feature lets you set the sound generated from buzzer when your monitor powers on.
[OSD Lock] This feature disables the configuration and adjustment of menus.
[Information] The following display information will be shown; [Serial Number], [Total Power On Time], [Resolution].
[Reset to Initial Settings] [Do you want to reset your settings?]
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[Yes] Returns to the default settings.
[No] Cancel the reset.
Description