Samsung UE40D7000LU E-Manual page 302

Issues
When changing channels, the
picture freezes or is distorted or
delayed.
Sound Quality
There is no sound or the sound
is too low at maximum volume.
◀
Solutions and Explanations
•
If connected with a cable / set-top box, please try to it.
Reconnect the AC cord and wait until the cable / set-top box reboots.
•
Set the output resolution of the cable box to 1080i or 720p.
First of all, please perform the
is properly operating. (go to
Test)
If the audio is OK, the sound problem may caused by the source or signal.
•
Please check the volume the of external device connected to your TV.
English
Sound Test to confirm that your TV audio
MENU - Support - Self Diagnosis - Sound
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