NVR-3000 OPERATION MANUAL & INSTALLATION MANUAL
NVR-3000 OM.E 20210412-02
11
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]
knob
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.
Note: When own ship's communication is in high priority, set to manual acknowledgement.
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