Audiovox D1788PK Owner's Manual page 10

b).Select 'ANGLE MARK' using the DOWN button, and then press
the 'ENTER' button to enter the submenu. Choose Angle Mark
on or off using the UP/DOWN buttons 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 icon.
NOTE: Not all discs contain above features.
Gen eral Video Password Preferen
Ang le Mark Off
Set Angle Mark
Angle Mark Screen Display
10
Exit
O n
O ff