Sharp AQUOS 4T-80CJ1U Operation Manual page 36

>> On-Screen Display Menu
<<
Example
Initial Setup (Continue)
Input Settings
Color System
Select the video signal system compatible with your
equipment from the list below:
AUTO/NTSC/PAL-N/PAL-M
NOTE
"Color System" can only be set for the TV or VIDEO IN.
HDMI CEC Link
Make the settings to use LINK Operation.
Set the settings with "Initial Setup" > "Input Settings" > "HDMI
CEC Link".
(See page 6-2.)
ENG 4-12
Reset
If complex adjustments are made and the settings cannot be
restored to normal, you can reset the settings to the factory
preset values.
If you have already set the Secret No., input the 4-digit
secret number here.