- 199 -SoundBefore requesting service or assistance, please follow these simple guides tosolve the problem.If 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 TV Speaker is set to On.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 TV)Watching > For best audio > Advanced settings3DBefore requesting service or assistance, please follow these simple guides tosolve the problem.If the problem still persists, please contact your local Panasonic dealer forassistance.Cannot view 3D images● Ensure that 3D Mode Selection is set to 3D.Watching > 3D > 3D Mode Selection● Some 3D image signals may not be automatically recognised as 3Dimages. Set 3D Mode Selection (Manual) to match the picture format.Watching > 3D > Viewing 3D