HP LCD Monitor Reference Manual page 18

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Power Button Lockout—Indicates the power button is locked. If the power button is locked, the
warning message Power Button Lockout displays.
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If the power button is locked, press and hold the power button for 10 seconds to unlock the
power button function.
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If the power button is unlocked, press and hold the power button for 10 seconds to lock out
the power button function.
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Dynamic Contrast Ratio On—Indicates that Dynamic Contrast Ratio has been turned on. This
occurs if Dynamic Contrast Ratio is turned on in the Image Control OSD menu.
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Dynamic Contrast Ratio Off—Indicates that Dynamic Contrast Ratio has been turned off. This
occurs if Dynamic Contrast Ratio is turned off in the Image Control OSD menu.
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Theft Mode Enabled—Indicates that theft deterrence mode has been activated. Theft
deterrence is an optional feature that can be set up in HP Display Assistant. Theft deterrence
mode is triggered if both the power and display cables have been disconnected from the
monitor, the monitor is reconnected to a different computer, and the theft deterrence PIN number
is not entered within the elapsed time. When the monitor is in theft deterrence mode, all front
panel buttons are disabled other than the power button.
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Speaker Self-Test In Progress—Indicates the monitor is testing the left and right speakers.
12 Chapter 3 Operating the Monitor ENWW