If you have any questions about the LED display, first refer to this list. If none of these troubleshooting tips apply, please visit "www.
samsung.com," then click on Support, or contact the call centre listed on the back-cover of this manual.
The LED display image does not look as
good as it did in the store.
The picture is distorted: macroblock error,
small block, dots, pixelization
There is poor colour or brightness.
There is a dotted line on the edge of the
When changing channels, the picture
freezes or is distorted or delayed.
There is no sound or the sound is too low
at maximum volume.
The picture is good but there is no sound.
The speakers are making an inappropriate
No Picture, No Video
The LED display will not turn on.
The LED display turns off automatically.
Solutions and Explanations
First of all, please perform the Picture Test and confirm that your LED display is properly displaying test
image. (go to
- Support - Self Diagnosis - Picture Test) If the test image is properly displayed, the
poor picture may caused by the source or signal.
• If you have an analogue cable/set top box, upgrade to a digital set top box. Use HDMI to deliver HD
(high definition) picture quality.
• Cable/Satellite subscribers: Try HD stations from the channel line up.
• Antenna connection: Try HD stations after performing Auto tuning.
Many HD channels are up scaled from SD(Standard Definition) contents.
• Adjust the Cable/Set top box video output resolution to 1080i or 720p.
• Make sure you are watching the LED display at the minimum recommended distance based on the
size and definition of the signal.
• Compression of video contents may cause picture distortion especially in fast moving pictures such
as sports and action movies.
• Low signal level or bad quality can cause picture distortion. This is not a LED display issue.
• Mobile phones used close to the LED display (cca up to 1m) may cause noise in picture on analogue
and digital LED display.
• Adjust the Picture options in the LED display menu. (go to Picture Mode / Colour / Brightness /
• Adjust Energy Saving option in the LED display menu. (go to
• Try resetting the picture to view the default picture settings. (go to
• If the picture size is set to Screen Fit, change it to 16:9.
• Change cable/satellite box resolution.
• If connected with a cable box, please try to reset the cable box. Reconnect the AC cord and wait until
the cable box reboots. It may take up to 20 minutes.
• Set the output resolution of the cable box to 1080i or 720p.
First of all, please perform the Sound Test to confirm that your LED display audio is properly operating. (go
- Support - Self Diagnosis - Sound Test)
If the audio is OK, the sound problem may caused by the source or signal.
• Please check the volume of the device (Cable/Sat Box, DVD, Blu-ray etc) connected to your LED
• If you are using a DVI to HDMI cable, LED display set does not support audio.
• Reboot the connected device by reconnecting the device's power cable.
• If your LED display has a headphone jack, make sure there is nothing plugged into it.
• For antenna or cable connections, check the signal strength. Low signal level may cause sound
• Make sure the AC power cord is securely plugged in to the wall outlet and the LED display.
• Make sure the wall outlet is working.
• Try pressing the
button on the LED display to make sure the problem is not the remote. If the
LED display turns on, refer to "The remote control does not work" below.
• Ensure the Sleep Timer is set to Off in the Time menu.
• If your PC is connected to the LED display, check your PC power settings.
• Make sure the AC power cord is plugged in securely to the wall outlet and the LED display.
• When watching LED display from an antenna or cable connection, the LED display will turn off after
10 ~ 15 minutes if there is no signal.
- System - Eco Solution -
- Picture - Reset Picture)