LG Electronics 23ET63V owner manual Troubleshooting, Nothing is displayed on the screen

ENGLISH

20TROUBLESHOOTING

TROUBLESHOOTING

Nothing is displayed on the screen.

Is the monitor's power cord plugged	yy Check if the power cord is correctly plugged in to the power outlet.
in?
Is the power indicator on?	yy Check the power cable connection and press the power button.
Is the power indicator displaying	yy Check that the connected input is enabled (Menu - Input).
red?
Is the power indicator blinking?	yy If the monitor is in power-saving mode, move the mouse or press any key on
	the keyboard to switch the display on.
	yy Check if the computer is turned on.
Is the "OUT OF RANGE" message	yy This occurs when signals transferred from the PC (video card) are out of the
displayed?	horizontal or vertical frequency range of the monitor. Please see the "Product
	Specification" section of this manual to set the appropriate frequency.
Is the "CHECK SIGNAL CONNEC-	yy This is displayed when the signal cable between the PC and the monitor is
TION" message is displayed?	missing or disconnected. Check the cable and reconnect.

Do you see a "OSD LOCKED" message on the screen?

Do you see “OSD LOCKED” when	yy You can secure the current control settings, so that they cannot be inadvertently
you push MENU button?	changed. You can unlock the OSD controls at any time by pushing the MENU
	button for several seconds: the message “OSD UNLOCKED” will appear.
The screen retains an image.
Does image sticking occur even	yy Displaying a still image for a prolonged time may cause damage to the screen,
when the monitor is turned off?	resulting in the retention of the image.
	yy Use a screen saver to protect the screen when using the monitor for a pro-
	longed period of time.

NOTE

yyVertical Frequency: In order to display an image, the screen must be refreshed dozens of times per second like a fluorescent lamp.

The number of times the screen is refreshed per second is called vertical frequency or refresh rate and is repre- sented by Hz.

yyHorizontal Frequency: The time it takes to display one horizontal line is called the horizontal cycle. The number of horizontal lines displayed in one second can be calculated by dividing one by the horizontal cycle. This is called horizontal frequency and is represented by kHz.

The image on the screen looks strange. (It works only in analog mode.)

Does the screen area appear un-	Pressing the AUTO button will automatically optimize the screen to the current
centered?	display mode.
Do you see vertical lines on the	Pressing the AUTO button will automatically optimize the screen to the current
screen?	display mode.
Do you see horizontal noise lines	Pressing the AUTO button will automatically optimize the screen to the current
or does text appear blurred on the	display mode.
screen?
Touch does not work normally.
Touch does not work at all.	yy Check whether the USB cable is properly connected to the PC.
	(No additional USB touch program installation is required.)
	yy Check your operating system. The touch function is supported only on
	Windows 7 and Windows 8.