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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 discoloured
(16 Colour).
The screen Colour is unstable
or the images are displayed
in only one Colour.
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 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 Colour to 24 bit (true Colour) or higher. In Windows, go to
Control Panel > Display > Settings > Colour 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.
y Check whether the audio cable is connected between the PC and
the product.
TROUBLESHOOTING
Troubleshooting
53
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