Appendix C ‐ Warning Signals
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.
There may be three sources for this problem. 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 graphic card. Check all the power switches, power cables, and VGA signal cable.
∙Going to Sleep
This message means that the LCD display is entering the power saving mode. In addition, the LCD display will enter sleep mode when experiencing a sudden signal disconnection problem. The monitor can be re‐activated by pressing the 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 display will display this message.
LC1503R/LC1503R‐C User’s Guide | 19 |