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Warning Signal
If you see warning messages on your LCD screen, this means that the LCD display cannot
receive a clean signal from the computer graphics card.
Below are the three kinds of Warning Signal. Please check the cable connections or contact
your local dealer or our service center for more information.
No Signal
This message means that the LCD display has been powered on but it cannot receive any
signal from the computer graphics card. Check all the power switches, power cables, and
Going to Sleep
The LCD display is under the power saving mode. In addition, the LCD display will enter
The monitor can be activated by pressing any keyboard, triggering the mouse or touching
the screen.
Out of Range
This message means that the signal of the computer graphic card is not compatible with the
LCD display. When the signal is not included in the "Video Modes" list we have listed in the
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