Check before
If the following symptoms occur, please carry out the checks and adjustments described below. There may be no malfunction.
Operational problems
Operational problem 1
Cannot view certain programmes.
  • Adjust the location or orientation of the antenna.
  • Save the programmes you wish to view using Auto Tuning or Programme Manager.
Operational problem 2
There is a delay after the TV is switched on before the image is fully visible.
  • This is normal. Any delay is due to an image deletion process which cleans up image noise that may occur when the TV is first switched on.
Image problems
HOME Settings Picture Picture Test
Run an Picture Test first to verify that the image signal output is normal.
If there is no problem with the test image, check connected external devices and the broadcast signal.
Image problem 1
Images from previous programme or other programmes linger or the screen displays annoying lines.
  • Adjusts the orientation of the antenna to the TV transmitter, or refer to the manual for instructions on connecting the antenna.
Image problem 2
Vibrating horizontal /vertical lines and fishnet patterns appear momentarily.
  • Such a problem may happen when there is strong electronic interference. Turn off other electronic devices such as mobile phones, power tools and other small electrical appliances.
Image problem 3
The screen display freezes or does not work properly during a digital broadcast.
  • This may occur in case of a weak signal or unstable reception. Adjust the antenna orientation and cable connections.
  • If the signal strength or quality is low on Manual Tuning, check with the TV station or administration office.
Image problem 4
Digital broadcasting is not available even though the cable is connected.
  • Check with the cable operator providing your subscription and/or signal. (Depending on your subscription, digital broadcasting may not be supported.)
Image problem 5
The display is inactive or unclear when connected to an HDMIⓇ source.
  • Check the HDMIⓇ cable specifications. If your HDMIⓇ cable is not genuine, images may fade in and out or not be displayed properly.
  • Ensure that all cables are securely connected. When connections are not secure, images may not be properly displayed.
Image problem 6
Does not work with a USB storage device.
  • Verify that the USB device and cable is version 2.0 or higher.
Sound problems
HOME Settings Sound Sound Test
Run a Sound Test first to verify that the sound signal output is normal.
If there is no problem with the test sound, check connected external devices and the broadcast signal.
Sound problem 1
Screen display is on but there is no sound.
  • Check other TV programmes.
  • [This feature is available on certain models only.] Check whether the Sound Out is set to Internal TV Speaker + Audio Out (Optical) or Internal TV Speaker.
Sound problem 2
For an analogue broadcast, stereo is not clear or sound comes from one speaker only.
  • In a poor reception area (areas with weak or unstable signals) or if Multi Audio is not stable, select MONO on Multi Audio.
  • Adjust the Balance using the Navigation Button.
Sound problem 3
TV sound is not in sync with the image or the sound breaks up occasionally.
  • If the issue affects a specific TV programme only, it may be caused by problems with the broadcast signal for the individual station. Check with the TV station or your cable operator.
Sound problem 4
The volume changes when I change programme.
  • Volume can vary from programme to programme.
  • Set Auto Volume to On.
Sound problem 5
On certain programmes, there is no sound at all, or only the background music can be heard (in case of a programme created for overseas viewers).
  • Set your language preference in Audio Language.
Sound problem 6
There is no sound when connected to an HDMIⓇ / USB source.
  • Make sure that the HDMIⓇ cable is high speed.
  • Check that the USB device and cable is version 2.0 or higher.
  • Use only regular music (*mp3) files.
PC connection problem (Only for models supporting PC connection)
PC connection problem 1
The screen display does not come on after connecting to the computer.
  • Make sure that the computer and the TV are securely connected.
  • Check whether the resolution is correctly set for PC input.
  • To use the TV as a secondary monitor, check if the connected desktop or laptop supports dual monitor display.
PC connection problem 2
There is no sound after connecting the computer with the HDMI cable.
  • Check with manufacturer of your video card to ensure it supports HDMI voice output. (Video cards in DVI format require connection of a separate sound cable.)
PC connection problem 3
When connected to the computer, the display is partially cut off or shifts to one side.
  • Set the resolution to support PC input.
    (If this does not work, reboot the computer.)
Problems replaying movies in My Media
Problem with replaying movies in My Media 1
I cannot view the files on the Videos.
  • Check whether the file on the USB storage device can be read on a computer.
  • Check whether the file extension is supported.
Problem with replaying movies in My Media 2
The file is invalid. The above error message appears. Sound, video or subtitles is not normal.
  • Make sure that the file replays normally on the computer’s video player. (Check for damaged files.)
  • Check if My Media can support the selected file.
Requesting service
HOME Settings General About This TV
For information on requesting service, refer to the following menu.