SoundBefore requesting service or assistance, please follow these simple guides tosolve the problem. Also makes a diagnosis of sound problem in TV Self Test.Support > Help menu > Using Help menuIf the problem still persists, please contact your local Panasonic dealer forassistance.No sound is produced● Is “Sound mute” active? Press MUTE to switch sound mute on or off.● Is the volume set to the minimum?● Check connections and setting of external equipment.Watching > External equipment● Ensure that Speaker Selection is set to TV.Functions > VIERA Link “HDAVI Control™” > Speaker Selection● Ensure that Speaker Setting is set to TV Speaker.Watching > For best audio > Volume settingsSound level is low or sound is distorted● Sound signal reception may be poor.● Set MPX in the Sound Menu to Mono. (Analogue)Watching > For best audio > Advanced settings- 249 -