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ENGLISH
TROUBLESHOOTING
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Problem
Action
Is the product power cord connected?
•
Check if the power cord is correctly plugged into the power outlet.
Power is on, but the screen appears
extremely dark.
•
Adjust brightness and contrast again.
•
Backlight may need repair.
Does the “Invalid Format” message
appear?
•
The signal from the PC (Graphics 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.
•
Access the input menu 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
function is supported by referring to the
graphics card user manual.
Summary of Contents for 55VL5F
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