NEC MultiSync M491 49" Class HDR 4K UHD Commercial IPS LED Display User Manual
Page 92
English−88
PROTECT MENU
POWER
Select [UNLOCK] to be able to use the POWER button when all buttons are locked. Select [LOCK] to lock
the button.
VOLUME
When [IR] is selected in [SELECT]:
- UNLOCK: Enable to control the volume with the VOL +/– button on the remote control.
When [KEY] is selected in [SELECT]:
- UNLOCK: Enable to control the volume with the + button and the – button on the monitor.
When [KEY & IR] is selected in [SELECT]:
- UNLOCK: Enable to control the volume with the VOL +/– button on the remote control and the + button
and the – button on the monitor.
LOCK: To prevent volume adjustment. When activating the volume lock, the monitor volume will
immediately change to the MIN VOL value.
MIN VOL/MAX VOL
The volume buttons are unlocked and the volume level can only be adjusted within the MIN and MAX
range set. VOLUME must be set to [UNLOCK] for this function.
INPUT
When [IR] is selected in [SELECT]:
- UNLOCK: Enable to use the input buttons on the remote control.
- LOCK: Lock all input buttons on the remote control.
When [KEY] is selected in [SELECT]:
- UNLOCK: Enable to use the INPUT/SET button on the monitor.
- LOCK: Lock the INPUT/SET button on the monitor.
When [KEY & IR] is selected in [SELECT]:
- UNLOCK: Enable to use the input buttons on the remote control and the INPUT/SET button on the
monitor.
- LOCK: Lock all input buttons on the remote control and the INPUT/SET button on the monitor.
ACTIVATE/
DEACTIVATE
Select [ACTIVATE] to activate all settings. To return to normal operation press-and-hold the DISPLAY
button for more than 5 seconds.
ALERT MAIL
When set to [ON] and the monitor is connected to a network, the monitor can send an email message
when an error occurs. The email settings must be configured in the monitor’s HTTP server settings for an
ALERT MAIL to be sent. See
.
RESET
Resets all security menu settings back to factory setting, except for [POWER ON DELAY] and [SECURITY
SETTINGS].