SoundIf you find that there is a problem with the TV's speakers, run Sound Test (Support > Self Diagnosis >Sound Test) to diagnose the issue. If the audio is OK, the sound problem may be caused by the sourceor signal.There is something wrongwith the TV. Try this!There is no sound orthe sound is too low atmaximum volume.Please check the volume of the device (cable/satellite box, DVD, Blu-ray, etc.)connected to your TV.The picture is good butthere is no sound.Navigate to Sound and set Speaker Select to TV Speaker.If you are using an external device, check the device’s audio output option. (Forexample, you may need to change your cable box’s audio option to HDMI if thebox connected to your TV is using an HDMI cable.)If you are using a DVI to HDMI cable, a separate audio cable is required.If your TV has a headphone jack, make sure there is nothing plugged into it.Reboot the connected device by disconnecting and then reconnecting the device’s power cable.The speakers are makingan odd sound.Make sure that the audio cable is connected to the correct audio outputconnector on the external device.For antenna or cable connections, check the signal information. A low signallevel may cause sound distortions.Run Self Diagnosis (Support > Self Diagnosis > Sound Test).3D TVThere is something wrongwith the TV. Try this!The 3D Active Glassesare not workingcorrectly.Make sure the glasses are turned on.The 3D Active Glasses may not work properly if there is another 3D product orelectronic device turned on near the glasses or TV.If there is a problem, keep other electronic devices as far away as possible fromthe 3D Active Glasses.The 3D images don’tlook quite right.The ideal viewing distance is three times or more the height of the screen.We also recommend sitting with your eyes level with the screen.The batteries in the 3Dglasses don’t last.Turn off the 3D glasses when you are not using them. If you leave the 3D glasseson, the battery lifespan is shortened.