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• Press ENTER, and then the  or  button to turn this function on or off.
DDC/CI
• Turns on or off the DDC/CI (Display Data Channel/Command Interface) function of the LCD monitor. 
When this function is turned on and the LCD monitor is connected to a PC, the LCD monitor 
communicates with the PC and automatically optimizes image display. 
• Press ENTER, and then the  or  button to turn this function on or off.
Reset
• If activated, all OSD settings (except the Language setting) will be restored to the factory settings.
• Press the ENTER button to activate the reset.
Diagnostic
• Press the ENTER button to display the diagnostic information of the LCD monitor:
• Thermal: Displays the current temperature inside the LCD monitor.
• Ambient: Displays the current ambient brightness around the LCD monitor.
• 5V Detect: Displays the current 5V voltage detection result.
• 12V Detect: Displays the current 12V voltage detection result.
• Operating Time: Displays the time elapsed since the LCD monitor was last turned on. D=Day, 
H=Hour.