Vivitar DVR 820HD Owner's Manual page 17

Auto Power Off – this power saving mode allows you to select
the stand-by time that is activated automatically if the camcorder is left
inactive.

Press the OK/Joystick button.

Push the OK/Joystick button to the Right/Left to highlight and
select one of the icons:
1 min / 3 min / Never

Press the OK/Joystick button to confirm, save your choice
and exit to the Setup mode submenu.

The camcorder will automatically power off if inactive for the
time selected.
Buzzer – activate or inactivate the beep sound that is emitted
when pressing a button

Press the OK/Joystick button.

Push the OK/Joystick button to the Right/Left to highlight and
select one of the icons:
ON/ OFF

Press the OK/Joystick button to confirm, save your choice
and exit to the Setup mode submenu.

If OFF is selected the camcorder will be silent and not emit
beeps when buttons are pressed.
Brightness – adjust the brightness of the LCD screen

Press the OK/Joystick button.

Push the OK/Joystick button to the Right/Left to select the
brightness option:
-2.0 (dark) / -1.0 / 0.0 / 1.0 / 2.0 (bright)
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