LG 49VL5F-A Owners Manual - Page 24

Troubleshooting

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24 TROUBLESHOOTING ENGLISH No image is displayed. Problem Is the product power cord connected? Power is on, but the screen appears extremely dark. Does the "Invalid Format" message appear? Does the "No Signal" message appear? Action •• Check if the power cord is correctly plugged into the power outlet. •• Adjust brightness and contrast again. •• Backlight may need repair. •• The signal from the PC (Graphics 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. •• The signal cable between PC and product is not connected. Check the signal cable. •• Access the input menu to check the input signal. The Unknown Product message appears when the product is connected. Problem Did you install the driver? Action •• Check if the function is supported by referring to the graphics card user manual. The screen image looks abnormal. Problem Is the screen position wrong? Do thin lines appear on the background screen? Horizontal noise appears or the characters look blurred. The screen is displayed abnormally. The screen flickers when the power is turned on. Action •• D-Sub analog signal - Press the 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. •• See if the graphics 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. •• Certain graphics cards themselves resize the screen. Adjust the graphics card settings. •• D-Sub analog signal - Press the 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. •• D-Sub analog signal - Press the 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 proper input signal is not connected to the signal port. Connect the signal cable that matches with the source input signal. •• If you turn the monitor on when it is cold, the screen may flicker. This is normal.

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24
ENGLISH
TROUBLESHOOTING
No image is displayed.
Problem
Action
Is the product power cord connected?
•
Check if the power cord is correctly plugged into the power outlet.
Power is on, but the screen appears
extremely dark.
•
Adjust brightness and contrast again.
•
Backlight may need repair.
Does the “Invalid Format” message
appear?
•
The signal from the PC (Graphics 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?
•
The signal cable between PC and product is not connected. Check the
signal cable.
•
Access the input menu to check the input signal.
The Unknown Product message appears when the product is connected.
Problem
Action
Did you install the driver?
•
Check if the
function is supported by referring to the
graphics card user manual.
The screen image looks abnormal.
Problem
Action
Is the screen position wrong?
•
D-Sub analog signal - Press the
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.
•
See if the graphics 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.
•
Certain graphics cards themselves resize the screen. Adjust the
graphics card settings.
Do thin lines appear on the background
screen?
•
D-Sub analog signal - Press the
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.
•
D-Sub analog signal - Press the
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.
•
The proper input signal is not connected to the signal port. Connect the
signal cable that matches with the source input signal.
The screen flickers when the power is
turned on.
•
If you turn the monitor on when it is cold, the screen may flicker. This
is normal.