NEC MA Series 43" 4K Commercial Display with Media Player and Raspberry Pi Compute Module 4 SoC - Manual (Page 56)

English−52
Locking the Control Panel Buttons and key
The [KEY] in the [LOCK SETTINGS] prevents the monitor from being controlled using the buttons and key on the monitor control
panel. Enabling the [KEY] does not lock the buttons on the remote control.
SELECT KEY
MODE UNLOCK
POWER
UNLOCK / LOCK
VOLUME
UNLOCK / LOCK
MIN VOL
10
MAX VOL
80
INPUT
UNLOCK / LOCK
PRESS TO EXECUTE
PROTECT:
POWER SAVE SETTINGS
THERMAL MANAGEMENT
SCREEN SAVER
POWER ON DELAY
SECURITY SETTINGS
LOCK SETTINGS
ALERT MAIL
RESET
1. Using the remote control, navigate to [PROTECT] then to [LOCK SETTINGS].
2. Under the [SELECT] option, press the  ,  buttons to change the setting to [KEY].
3. Under [MODE] choose the lock mode you want to enable.
• [UNLOCK] – all keys are unlocked.
• [ALL LOCK] – all key buttons are locked.
• [CUSTOM LOCK] – all key buttons are locked except for the following buttons that can be individually set to be locked or
unlocked.
• [POWER] – select [UNLOCK] to be able to use the ⏻ button when the keys are locked.
• [VOLUME] – select [UNLOCK] to be able to control the volume with the v / w keys when the keys are locked. Select
[LOCK] to prevent volume adjustment.
When activating the volume lock, the monitor volume will immediately change to the [MIN VOL] value.
• [MIN VOL] and [MAX VOL] – the v / w keys are unlocked and the volume can only be adjusted within the [MIN] and
[MAX] set.
The [VOLUME] must be set to [UNLOCK] for this setting to operate.
• [INPUT] – select [UNLOCK] to be able to change the inputs using the INPUT/SET button.
4. Select [SET] to activate all settings.
Unlocking the buttons and key on the monitor control panel
Key/Buttons – to return to normal operation unlock all the buttons/keys on the main unit control panel by pressing the SET key
and MENU/EXIT button on the main unit control panel at the same time for 3 seconds or longer.
OSD Menu – to return to normal operation, use the remote control to navigate to [PROTECT] then to [LOCK SETTINGS]. Under
the [SELECT] option, change the setting to [KEY]. Under [MODE] choose [UNLOCK] and then select [SET].
Locking the IR Remote Buttons and the Control Panel Buttons/key
Select [PROTECT] ➙ [LOCK SETTINGS] ➙ [SELECT] ➙ [KEY & IR] from the OSD menu.
For the subsequent setting procedure, buttons/keys for which the lock is enabled, and unlocking method, refer to “Lock button
operation on remote control” and “Lock button/key operation on the main unit control panel”.