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In TV / HDMI input, press the
Cannot control the TV with
the remote control.
No image display and no
sound is produced.
The TV turns off suddenly.
Abnormal Display
Generated Sound
A Zero Connect Box
connection image appears
on the screen.
A power connection image
appears on the screen.
24
Troubleshooting
button on the remote control three times to display the model name and serial number on the screen.
• Check if anything such as tape has been placed over the receiver.
• Check if there is any obstacle between the product and the remote control.
• Replace the batteries with new fresh ones.
• Check if the product is turned on.
• Check if the power cord is connected to a wall outlet.
• Check if there is a problem in the wall outlet by connecting other products.
• Check the power control settings. The power supply may be interrupted.
• Check if the auto-off function is activated in the settings menu.
• The auto-off function may have worked. This product is equipped with an auto-off function that automatically
turns off the power if the remote control is not used for 15 minutes without an input signal.
• If the product feels cold to the touch, there may be a small "flicker" when it is turned on. This is normal, there is
nothing wrong with product.
• This panel is an advanced product that contains millions of pixels. You may see tiny black dots and/or brightly
colored dots (white, red, blue or green) at a size of 1 ppm on the panel. This does not indicate a malfunction and
does not affect the performance and reliability of the product. This phenomenon also occurs in third-party products
and is not subject to exchange or refund.
• You may find different brightness and color of the panel depending upon your viewing position(left/right/
top/down). This phenomenon occurs due to the characteristic of the panel. It is not related with the product
performance, and it is not malfunction.
• Avoid touching the screen or holding your finger(s) against it for long periods of time. Doing so may produce some
temporary distortion effects on the screen.
• Cracking noise A cracking noise that occurs when watching or turning off the TV is generated by plastic thermal
contraction due to temperature and humidity. This noise is common for products where thermal deformation is
required.
• Electrical circuit humming/panel buzzing A low level noise is generated from a high-speed switching
circuit, which supplies a large amount of current to operate a product. It varies depending upon the product. This
generated sound does not affect the performance and reliability of the product.
• Fan noise: It is a sound made to dissipate the heat generated by the Zero Connect Box, and does not make the
product defective.
• Clear any objects between the TV screen and the Zero Connect Box.
• Turn the dial on the top of the Zero Connect Box left or right.
• Move the sliding button on the top of the Zero Connect Box up or down.
• Connect the power cord of the Zero Connect Box.
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