Device Configuration; System Settings; Sounds And Display Settings; Audio Settings - Garmin GPSMAP 12x3 Owner's Manual

System Settings

Select Settings > System.
Sounds and Display: Adjusts the display settings and the audio settings (if available).
Satellite Positioning: Provides information about the GPS satellites and settings.
System Information: Provides information about the devices on the network and the software version.
Station Information: Adjusts the setup of the station.
Auto Power Up: Controls which devices turn on automatically when power is applied.
Auto Power Off: Automatically turns off the system after it has been asleep for the selected length of time.
Simulator: Turns the simulator on or off and allows you to set the time, date, speed, and simulated location.

Sounds and Display Settings

Select Settings > System > Sounds and Display.
Beeper: Turns on and off the tone that sounds for alarms and selections.
Audio Setup: Sets up the audio output.
Backlight: Sets the backlight brightness. You can select the Auto option to adjust the backlight brightness
automatically based on the ambient light.
Backlight Sync: Synchronizes the backlight brightness of other chartplotters in the station.
Color Mode: Sets the device to display day or night colors. You can select the Auto option to allow the device to
set day or night colors automatically based on the time of day.
Startup Image: Sets the image that appears when you turn on the device.
Startup Layout: Sets the layout that appears when you turn on the device.
Screen Lock: Sets the anti-theft feature that requires a security PIN (Personal Identification Number) to prevent
unauthorized use of the device

Audio Settings

You can adjust audible alarms, alerts, and warnings that are sounded over connected audio devices, such as a
Fusion stereo. An audio device can be connected using HDMI or the NMEA 0183 Audio Cable accessory.
Select Settings > System > Sounds and Display > Audio Setup.
Audio Output: Turns on the audio output for audio alerts.
Audio Alerts: Sets which system alarms and alerts are played over the compatible audio output. An alarm
indicates a situation could be hazardous to passengers and requires immediate action. A warning indicates
the situation could be hazardous to equipment on the vessel or the vessel itself and requires action very
soon. All other messages and information are classified as alerts.
Audio Alert Language: Sets the spoken language for alerts.
Audio Alert Device: Sets the device to control when alerts are played.
Audio Alert Source: Switches the audio device to the selected source when an alert is played.
Alert Volume: Controls the volume of the alerts.
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Device Configuration

(Enabling Screen Lock, page 11).
Device Configuration