LG 29UM58-P User Manual

Nothing is displayed on the screen.
Is the monitor's power cord plugged 

in?

 

y

Check if the power cord is correctly plugged in to the power outlet.

Is the power indicator on?

 

y

Check the power cable connection and press the power button. 

Is the power indicator displaying ?  

 

y

Check that the connected input is enabled (Menu - Input).

Is the power indicator blinking?

 

y

If the monitor is in sleep mode, move the mouse or press any key on 

the keyboard to switch the display on.

 

y

Check if the computer is turned on.

Is the "OUT OF RANGE" message 

displayed?

 

y

This occurs when signals transferred from the PC (video card) are out 

of the horizontal or vertical frequency range of the monitor. Please see 

the "Product Specification" section of this manual to set the appropri-

ate frequency.

Is the "CHECK SIGNAL CONNEC-

TION" message is displayed?

 

y

This is displayed when the signal cable between the PC and the moni-

tor is missing or disconnected. Check the cable and reconnect.

The screen retains an image.
Does image sticking occur even 

when the monitor is turned off?

 

y

Displaying a still image for a prolonged time may cause damage to the 

screen, resulting in the retention of the image.

 

y

Use a screen saver to protect the screen when using the monitor for a 

prolonged period of time.

 

y

Vertical 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 represented by Hz.

 

y

Horizontal 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 hori-

zontal cycle. This is called horizontal frequency and is represented by kHz.