JRC JLR-20 - 5.2.5 Stopping the Alarm Buzzer; 5.2.6 Changing the Display

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5.2.5 Stopping the Alarm Buzzer
Pressing the key silence the buzzer.
The buzzer sounds when one of the following occurs.
• Position measurement is interrupted
• Bearing measurement is interrupted
• An error occurs
5.2.6 Changing the Display
Each time the key is pressed, the screen display changes. (Refer to "4.1 Display Screen")