21
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.
Does the “Invalid Format” message
appear?
• The signal from the PC (Graphic 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.
• Press the INPUT menu in the remote control 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 Plug and Play function is supported by referring to the
graphic card user manual.
The screen image looks abnormal.
Problem Action
Is the screen position wrong? • Check if the graphic 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.
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.
After-image appears on the product.
Problem Action
After-image appears when the product is
turned off.
• If you use a fixed image for a long time, the pixels may be damaged.
Use the screen-saver function.
• When a dark image is displayed on the screen after an image with high
contrast (black and white or gray), this may cause image sticking. This
is normal for LCD screen products.
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