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Note: Transmitting is disabled during scanning.
2.5 Brightness Adjustment
There are two ways to adjust the brightness of screen.
① Press the DIM button on panel to adjust the
brightness by ten steps, or
② Click [MENU] and adjust the brightness in the
[MAIN MENU]: [SYSTEM]-[DISPLAY]-[LCD
DIMMER]. Click [LCD DIMMER] by 1 ~ 10
steps.
Note: When the power is turned off, the last status of
brightness is stored. Therefore, when the power is
turned on, the screen will display with the last
brightness before powered off.
2.6 Main Speaker On/Off
There are three ways to turn on/off the main speaker (except in DSC communication, alarming and key buzzing).
① Rotate the VOLUME knob anti-clockwise to mute
the main speaker.
② At any screen, shortly press the VOLUME knob
to mute the main speaker, and press again to
resume.
③ While [AUDIO] - [OFF HOOK SPK] in
[SYSTEM SETTING] is set as ON, the main
speaker keeps on no matter the handset is on/off
the hook. While [OFF HOOK SPK] is set as OFF,
the main speaker will be muted if the handset is off
the hook. Refer to Section 2.8.3.3.
2.7 Auto Acknowledgement Setting
Individual, position, polling and test calls can be acknowledged automatically. This is to set on [ACK SETTING]
in the [MAIN MENU]-[DSC] menu.
NVR-3000 OPERATION MANUAL & INSTALLATION MANUAL
6
NVR-3000 OM.E 20230109-08
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