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 signals you may receive. Please check the cable
connections or contact your sales representative 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
VGA/DVI signal cable.
Going to Sleep
The LCD display will enter power saving mode when experiencing a sudden signal
disconnecting problem. 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
Appendices of this manual, the LCD monitor will display this message.
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