LG 55LV75A User Guide

Is the product power cord 
connected?

 

y

 See if the power cord is properly connected to the outlet.

 Power is on, but the screen 
appears extremely dark.

 

y

 Adjust brightness and contrast again.

 

y

 Backlight may need repair.

 Does the 'Invalid Format' 
message appear?

 

y

 The signal from the PC (video card) is out of the vertical or horizontal 
frequency range of the product. Adjust the frequency range by 
referring to the Specifications in this manual.

 Does the 'No signal' message 
appear?

 

y

 The signal cable between PC and product is not connected. Check 
the signal cable.

 

y

 Press the 'INPUT' menu in the remote Control to check the input 
signal.

Did you install the driver?

 

y

 See if the plug&play function is supported by referring to the video 
card user manual.

Is the screen position wrong?

 

y

D-Sub analog signal - Press the "AUTO" button in the remote control 
to automatically select the optimal screen status that fits into the 
current mode. If adjustment is not satisfactory, select [PICTURE] - 
[Screen] - [Position] in OSD menu.

 

y

See if the video card resolution and frequency are supported by the 
product. If the frequency is out of range, set to the recommended 
resolution in the Control Panel "Display" Setting menu.

Do thin lines appear on the 
background screen?

 

y

D-Sub analog signal - Press the  "AUTO" button in the remote control 
to automatically select an optimal screen status that fits into the 
current mode. If adjustment is not satisfactory, select [PICTURE] - 
[Screen] - [Size] in OSD menu.

Horizontal noise appears or the 
characters look blurred.

 

y

D-Sub analog signal - Press the  "AUTO" button in the remote control 
to automatically select an optimal screen status that fits into the 
current mode. If adjustment is not satisfactory, select [PICTURE] - 
[Screen] - [Phase] in OSD menu.

The screen is displayed 
abnormally. 

 

y

 The proper input signal is not connected to the signal port. Connect 
the signal cable that matches with the source input signal.