Datavideo HS-2000 Hand Carried Studio Instruction Manual page 30

Once the setting is highlighted press the ENTER button again to highlight the options, and then use the UP /
DOWN buttons to select the required value, and press ENTER once more to accept the new value.
In the Special Feature Menu you can choose:
Frame Ratio - This will display a "Safe Area"
frame on the screen
70%
Once you have set the Frame Ratio you can exit the menu. To display the Safe Area frame press the DOWN
Button
Mask Type - This sets the 4:3 Mask option.
Overlay Mode
Once you have set the Mask Type you can exit the menu. To display the 4:3 Mask press the UP Button
N.B. Only works in 16:9 mode
Scan Mode
Internal Speaker
External Speaker
Off / 70% / 80% / 90%
80%
Overlay / Transparent
Transparent Mode
Overscan / Underscan
Mute Control - On / Off
Mute Control - On / Off
30
90%