Dell C5519Q User Manual page 51

There are three levels of lock.
Menu
1 OSD menu lock
2 Power-off button
lock
OSD menu lock +
3
Power-off button
lock
+
Built-in Diagnostics See
4
NOTE: To get into OSD Lock or Unlock menu – Press and hold the Exit
key (button 4) for 4 seconds.
The icon will appear on center of display screen when in the following
conditions which mean OSD is in lock state.
1. Press the Up key (button 1), Down key (button 2), Menu key (button 3) or
Exit key (button 4) when in "OSD menu lock" state.
2. Press the Power key (button 5) when in "Power-off button lock" state.
3. Press any button of the monitor when in "OSD menu lock + Power-off button
lock" state.
When OSD is in lock state, hold the Exit key (button 4) for 4 seconds to enter the
OSD unlock menu.
And then choose and apply to the unlock icon
Description
When "OSD menu lock" is selected, no user
adjustments are allowed. All buttons are locked
except Power key.
When "Power-off button lock" is selected, user is
now not able to turn off the display via Power key.
When "OSD menu lock + Power-off button lock" is
selected, no user adjustments are allowed and the
power-off button is locked.
Built-in diagnostics for more information.
to release the OSD lock.
Operating the monitor 51
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