Samsung UA65KS7000W e-Manual

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The problem
Try this!
The speakers are making 
an odd sound.
Make sure that the audio cable is connected to the correct audio output connector 
on the external device.
For antenna or cable connections, check the signal information. A low signal level 
may cause sound distortions.
Run 
Start Sound Test
 (      
Settings
   
Support
   
Self Diagnosis
   
Start Sound 
Test
).
There Is a Problem with the Broadcast
When the TV has difficulties receving broadcasts, these steps may help resolve the problem.
The problem
Try this!
“Weak or No Signal” 
displayed in TV mode/
cannot find channel.
Select       
Source
 to confirm that the correct input source has been selected.
If the TV is not connected to a cable or satellite box, run 
Auto Tuning
 to search for 
channels (      
Settings
   
Broadcasting
   
Auto Tuning
).
The TV is not receiving all 
channels.
Confirm that the coaxial cable is securely connected to the TV.
Run 
Auto Tuning
 (      
Settings
   
Broadcasting
   
Auto Tuning
).
There are no subtitles 
with digital channels.
Go to 
Subtitle
 (      
Settings
   
System
   
Accessibility
   
Subtitle
) and change 
the 
Subtitle Mode
.
Some channels may not have subtitle data.
The picture is distorted.
The compression of the video content may cause picture distortions. This is 
especially true with fast moving pictures from sports programmes and action 
movies.
A weak signal can cause picture distortions. This is not a problem with the TV.
The picture quality is low.
Select high definition (HD) channels or programmes.
My Computer Won't Connect
When the TV has difficulties connecting to a PC, these steps may help resolve the problem.
The problem
Try this!
The "Mode Not 
Supported" message 
appears.
Set your PC’s output resolution so it matches a resolution supported by the TV.
The video is OK but there 
is no audio.
If you are using an HDMI connection, check the audio output setting on your PC.
If you are using an HDMI-to-DVI cable, a separate audio cable is required.