LG 75XE3C - Troubleshooting; No image is displayed; The Unknown Product message appears

ENGLISH
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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.
• Check whether the circuit breaker has been connected properly. The
switch of the circuit breaker must be set to on (red).
• When operating in below zero temperature, the enclosure may not
work for up to one hour to raise the internal temperature of the
enclosure.
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 Plug and Play function is supported by referring to the
graphics card user manual.