Audiovox D1812 Instruction Manual page 10

b).Select ' TV Type' using the UP/DOWN button, and then press the
RIGHT button to enter the submenu. Choose TV Type using the UP/
DOWN button and then press ENTER to confirm the setting. Press
the LEFT button to return.
c).Select ' Angle Mark' using the UP/DOWN buttton, and then press the
RIGHT button to enter the submenu. Choose Angle Mark on or off
using the UP/DOWN button and then press ENTER to confirm the
setting. Press the LEFT button to return.
* On: The screen will show the angle mark icon. (*If an angle option is
available).
* Off: The screen will not display the Angle Mark
NOTE: Not all discs contain above features. The above features are
disc dependent.
TV Type Screen Display
Angle Mark Screen Display
7