LG 505E User Guide - Page 12

Troubleshooting, No image appears, The screen is flickering.

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Troubleshooting Check the following before calling for service. No image appears ❐ Is the power cord of the monitor connected? • Check and see if the power cord is connected properly to the power outlet. ❐ Is the power indicator light • PressthePowerbutton. on? ❐ Is the power on and the power indicator green? • Adjust the brightness and the contrast. ❐ Isthepowerindicator flickering? • If the monitor is in power saving mode, try moving the mouse or pressing any key on the keyboard to bring up the screen. ❐ Doyouseean"OUTOF FREQUENCY" message on the screen? • This message appears when the signal from the PC (video card) is out of horizontal or vertical frequency range of the monitor. See the 'Specifications' section of this manual and configure your monitor again. ❐ Doyouseea"SELF • This message appears when the signal cable between DIAGNOSITICS"message yourPCandyourmonitorisnotconnected.Checkthe on the screen? signal cable and try again. The screen is flickering. ❐ Is the vertical frequency less than 70Hz or is your monitor set to the interlaced mode? • Set the vertical frequency to 72Hz or higher, and consult the video card user manual for instructions on converting to a non-interlaced mode. (You can set this option under the Display icon of the Control Panel.) ❐ Do you have any magnetic material such as adapter, or highvoltage line near to your monitor? • Remove magnetic sources, such as power adapters, speakers, or high-voltage lines, away from the monitor. ❐ Do you hear a "~ding" sound while the monitor is flickering? • Use the normal degaussing function. This function clears the screen and reduces any screen blur that may occur due to the surrounding magnetic field. The screen may flicker for about 5 seconds, accompanied by a "~ding" sound. A11

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A11
Troubleshooting
Check the following before calling for service.
No image appears
❐
Is the power cord of the
monitor connected?
❐
Is the power indicator light
on?
❐
Is the power on and the
power indicator green?
❐
Is the power indicator
flickering?
❐
Do you see an "OUT OF
FREQUENCY" message
on the screen?
❐
Do you see a "SELF
DIAGNOSITICS" message
on the screen?
•
Check and see if the power cord is connected properly to
the power outlet.
•
Press the Power button.
•
Adjust the brightness and the contrast.
•
If the monitor is in power saving mode, try moving the
mouse or pressing any key on the keyboard to bring up
the screen.
•
This message appears when the signal from the PC
(video card) is out of horizontal or vertical frequency range
of the monitor. See the 'Specifications' section of this
manual and configure your monitor again.
•
This message appears when the signal cable between
your PC and your monitor is not connected. Check the
signal cable and try again.
❐
Is the vertical frequency
less than 70Hz or is your
monitor set to the
interlaced mode?
❐
Do you have any
magnetic material such
as adapter, or high-
voltage line near to your
monitor?
❐
Do you hear a "~ding"
sound while the monitor
is flickering?
•
Set the vertical frequency to 72Hz or higher, and
consult the video card user manual for instructions on
converting to a non-interlaced mode.
(You can set this option under the Display icon of the
Control Panel.)
•
Remove magnetic sources, such as power adapters,
speakers, or high-voltage lines, away from the
monitor.
•
Use the normal degaussing function. This function
clears the screen and reduces any screen blur that
may occur due to the surrounding magnetic field. The
screen may flicker for about 5 seconds, accompanied
by a "~ding" sound.
The screen is flickering.