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Aspect Ratio: select the aspect ratio
from the suggested options.
Blue Screen: toggle showing blue
screen when there is no signal.
First Time Installation: redo the initial
setup.
Reset: reset the parameters to the initial
factory settings.
Software Update (USB): update TV
software using the USB storage device.
Environment: set one of environment
modes
HDMI CEC: switch the HDMI Customer
Electronic Control feature on or off.