User manual

ENGLISH
56
TROUBLESHOOTING
TROUBLE SHOOTING
Symptom Troubleshooting
No image is displayed.
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Check whether there is a power cut or whether the power cord is
properly connected to the power outlet.
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Check if the standby indicator is turned off.
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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.
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Move the mouse or press any key, then the screen will appear.
The 'Out of Range' message
is displayed on the screen.
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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.
The 'No Signal' message is
displayed on the screen.

This symptom occurs when the signal cable between the PC and the
product is not connected. Check the signal cable and connect it again.

Check if the input setting is correct when the PC and the product are
connected.
The screen position is
incorrect when using a PC.

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.
There are still images sticking
after power off.
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Displaying a still image for a prolonged time may cause damage to the
screen, resulting in the retention of the image.

Use a screen saver to protect the screen when using the product for a
prolonged period of time.
The display is discolored (16
Colour).

Set the Colour to 24 bit (true Colour) or higher. In Windows, go to
Control Panel > Display > Settings > Colour Quality.
The screen Colour is unstable
or the images are displayed
in only one Colour.

Check if the signal cable is connected properly. Reconnect the cable
or reinsert the PC's video card.
Spots appear on the screen.

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.
The 'Key Lock' message
displays on the screen.

The key lock is enabled. Go to Menu > Settings (Lock) and set 'Key
Lock' to Off.
The remote control is not
working.

Make sure that there are no obstacles between the remote control and
the Product.

Check whether the batteries are correctly inserted with the correct
polarity.

If the batteries are weak, replace both of the batteries with new ones.
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The product may malfunction in a place where a lamp with an
electronic stabilizer (3-wavelength lamp) is installed.
Nothing is displayed on the
TV screen.

Use the TV/PC switch key to select TV.
No sound is heard from the
PC.

Check whether the audio cable is connected between the PC and the
product.