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52
TROUBLESHOOTING
TROUBLESHOOTING
Symptom
No image is displayed.
The 'Out of Range' message is
displayed on the screen.
The 'No Signal' message is
displayed on the screen.
The screen position is incorrect
when using a PC.
There are still images sticking
after power off.
The display is discolored (16
color).
The screen color is unstable or
the images are displayed in only
one color.
Spots appear on the screen.
The 'Key Lock' message
displays on the screen.
The remote control is not
working.
Nothing is displayed on the TV
screen.
No sound is heard from the PC. y Check whether the audio cable is connected between the PC and the
y Check whether there is a power cut or whether the power cord is
properly connected to the power outlet.
y Check if the standby indicator is turned off.
y If the screen is turned off due to use of the Energy Saving mode,
press any button on the remote control to disable the Energy Saving
mode and display the image.
y Move the mouse or press any key, then the screen will appear.
y This symptom occurs when signals from the PC (video card) are out
of the horizontal or vertical frequency range of the product. Please
see the Product Specification section of this manual and configure
your display again.
y This symptom occurs when the signal cable between the PC and
the product is not connected. Check the signal cable and connect it
again.
y Check if the input setting is correct when the PC and the product are
connected.
y Check whether the resolution or frequency of the video card is set
within the appropriate range for the product and go to Control Panel
> Display > Settings to set it to the recommended resolution.
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 product for a
prolonged period of time.
y Set the color to 24 bit (true color) or higher. In Windows, go to Control
Panel > Display > Settings > Color Quality.
y Check if the signal cable is connected properly. Reconnect the cable
or reinsert the PC's video card.
y When using the Product, pixilated spots (red, green, blue, white or
black) may appear on the screen. This is normal for the LCD screen. It
is not an error nor is it related to the Product's performance.
y The key lock is enabled. Go to Menu > Settings (Lock) and set 'Key
Lock' to Off.
y Make sure that there are no obstacles between the remote control
and the Product.
y Check whether the batteries are correctly inserted with the correct
polarity.
y If the batteries are weak, replace both of the batteries with new ones.
y The product may malfunction in a place where a lamp with an
electronic stabilizer (3-wavelength lamp) is installed.
y Use the TV/PC switch key to select TV.
product.
Troubleshooting
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