75XE3C-B User Manual

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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.

• 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.

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LG Electronics 75XE3C-B 75” (75.52” Diagonal) Outdoor Commercial Signage