JRC JMA-5912-6, Instruction Manual

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②：
Panel lighting brilliance switching
This function enables the setting of the brilliance of the lighting of the control panel.
The brilliance changes whenever this button is clicked. Five levels of settings are available.
③：
Radar video brilliance switching
Adjust the brightness of the radar video (echo).
The brilliance changes whenever this button is clicked. Four levels of settings are available.
④：
Tracked target / AIS target symbol brilliance switching
Use this function to adjust the brilliance of the tracked target / AIS target symbol.
The brilliance changes whenever this button is clicked. Five levels of settings are available.
⑤：
Day / night mode switching
The day / night mode is switched whenever this button is clicked.
Day1
⇒
Day2
⇒
Day3
⇒
Dusk
⇒
Night
⇒
Day1
⑥：
User map load
If this button is clicked, the user created map read menu is opened.
⑦：
User setting load
If this button is clicked, the user setting read menu is opened.
Alarm
①：
Alarm acknowledgment
If this button is clicked, the buzzer sound of the alarm that is currently issued is stopped and the alarm
lamp stops blinking. If multiple alarms are issued, the next alarm to be acknowledged is displayed.
If the button is clicked, the alarm displayed on the top is acknowledged.
The alarms that are currently issued are displayed at the bottom one by one.
②：
Alarm log display
If this button is clicked, the alarm log is displayed.