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Go to to choose the connected input.
Check if your external device, such as set-top box or Blu-ray player, is turned on.
I cannot see some channels.
Launch General Channels Channel Tuning Auto Tuning.
If you are using a set-top box, consult its supplier.
The screen is cut off.
Go to Picture and change the Aspect Ratio.
When using an external device (set-top box, game console, etc.), check the screen size
settings in the Settings menu of the device.
The screen shakes after the momentary appearance of vertical/horizontal lines and
net pattern.
Connect wireless telephones, hairdryers, electrical drills, etc. to a different power outlet.
The problem may be caused by high-frequency electronic devices such as another TV or
strong electro-magnetic sources nearby.
Each channel has a different image quality.
Depending on the type of videos provided by the broadcasters, channels may have
different image qualities.
If you are using a set-top box, consult its supplier.
Run Screen Self-diagnosis first. If it is normal, there may be a problem with the
broadcast signal.
There is a difference in image quality from those seen at the store.
Depending on the type of video provided by the broadcasters, there may be a difference
in image quality from those displayed at the store.
Run Screen Self-diagnosis first. If it is normal, there may be a problem with the
broadcast signal.
A digitally broadcasted program stops or its screen is broken.
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