IBM 9519-AW1 - Manuale (Pagina 22)

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OSD Lock / Unlock
This feature allows you to secure the current control settings, while allowing
the user to adjust Brightness and Contrast, so that they cannot be
inadvertently changed. You can unlock the OSD controls at any time by using
the same procedure.
Push and hold the button for 10 seconds to Lock or to Unlock. When locked, a
“CONTROLS LOCKED” message will be displayed.