Troubleshooting - LG 55EJ5C Owner's Manual

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TROUBLESHOOTING

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Problem
Is the product power cord connected?
Is the FPC extension cable properly
connected?
Does the "Invalid Format" message
appear?
Does the "No Signal" message appear?
The "Unknown Product" message appears when the product is connected.
Problem
Did you install the driver?
The screen image looks abnormal.
Problem
Is the screen position wrong?
The screen is displayed abnormally.
• Check if the power cord is correctly plugged into the power outlet.
• Make sure the FPC extension cable is properly connected between the
cable coming out of the panel and signage box.
• 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.
• 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.
• Check if the Plug and Play function is supported by referring to the
graphics card user manual.
• Check if the graphics 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
settings may differ depending on your operating system.)
• The proper input signal is not connected to the signal port. Connect the
signal cable that matches with the source input signal.
Action
Action
Action