Garmin Montana 650t Owner's Manual - Page 10
Rotating the Screen, Turning On the Backlight, Adjusting the Backlight, Brightness - battery
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Getting Started Unlocking the Screen 1. Press . 2. Select . Rotating the Screen To lock the screen orientation, see page 36. Rotate your device to view in horizontal (landscape) or vertical (portrait) mode. Turning On the Backlight The backlight will turn off after a period of inactivity. To change the backlight timeout, see page 7. Touch the screen. Alerts and messages also activate the backlight. Adjusting the Backlight Brightness Note: The backlight brightness may be limited when the remaining capacity in the batteries is low. Extensive use of screen backlighting can significantly reduce battery life. You can adjust the backlight brightness to maximize battery power. 1. While the device is on, press . 2. Use the backlight slider bar to adjust the brightness level. 6 Montana 600 Series Owner's Manual