Samsung PN64D7000FFXZA User Manual page 300

Issues
The batteries in the 3D glasses
don't last
Sound Problem
There is no sound or the sound
is too low at maximum volume.
◀
Solutions and Explanations
•
Turn off 3D glasses while not using them. If you leave 3D glasses on,
battery lifespan is shortened
•
First, perform the Sound Test to determine if your TV audio is operating
properly.
•
Go to MENU - Support
•
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 TV.
English
- Self Diagnosis - Sound Test)
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