Elo TouchSystems 1220L - Manual (Page 16)

15
Warning Signal
Sometimes you will see warning messages from the LCD screen. This
means that the LCD display cannot receive the signal from the computer
graphic card.
There are three situations where this may happen. Please check the
connected cables or contact your local dealer for more information.
4
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.
4
Going to Sleep
This message means that the LCD display is in power saving mode. In ad-
dition, the LCD display will go to the sleep mode when experiencing a
sudden signal disconnecting problem.
4
Unsupport Mode
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
compatibility mode we have listed in the Appendices of this manual, the
LCD display will show this message.