55Support InformationFrequently Asked Questions (FAQ)Questions AnswersSound OtherWhy is there no sound comingfrom the TV?Make sure the volume is up and MUTE is off.Confirm the TV speakers are set to ON by pressing MENUand selecting “Audio” --> “Advanced audio”. (p. 45)Check that the correct SAP (Secondary Audio Program) isselected by pressing the SAP button on the remote control. (p. 17)If the TV is connected to a Panasonic Home Theater via HDMIcable, then check VIERA Link controls. (p. 33)If the TV is connected to a Home Theater via optical cable,then: Check the connection, the audio system is on, thecorrect input is selected.Check “HDMI 1 in”, “HDMI 2 in” or “HDMI 3 in” analog/digital audio settings. (p. 45)Why is the sound unusual,distorted, low volume or inanother language?Check that the correct SAP (Secondary Audio Program) isselected by pressing the SAP button on the remote control.Check that all connections of external equipmentconnected to the TV are secure.When using Cable or Satellite box, check the device’s audiosettings. (example: try changing the box’s Audio Range to ‘narrow’)Why is there a clicking, tickingor buzzing sound coming fromthe TV unit?When TV power is turned on or shut off there are electricalcomponents that make a click sound. This is normal operation.Changes in the temperature and humidity of the room maycause thermal expansion and contraction that can producesounds. This is not a sign of faulty operation or a malfunction.What is the easiest and bestway to connect a High-DefinitionCable or Satellite box to the TV?Use an HDMI cable. It carries both digital video and audiosignal in HD. HDMI cable is the only cable needed toconnect an HD device to the TV.Why does the CC button notdisplay Closed Caption?When viewing TV via an HDMI connected device, such asa Cable or Satellite box, CC must be enabled at the device.Closed Caption is available only at supported TV programming.Why does the screen and backcover of the TV get warm?The main unit radiates heat and some of the parts maybecome hot. This is normal operation and does not affectthe performance of the set.Ensure good ventilation.Do not block the ventilation holes of the TV and do notplace the TV on top of other equipment.Why doesn’t the RemoteControl work?Check that the batteries are fresh, are of the same typeand are installed with the correct polarity (+ & -).To operate other devices, such as changing channels whenusing Cable or Satellite boxes or operating non-PanasonicBlu-ray players, use the remote supplied with the device.Why is the “ANT/Cable” optionat the top of the “Input select”menu gray-out and cannot beselected?During “First time setup”, you indicated in step - thatyou are using Cable or Satellite box and in step - b thatthe box is connected to one of the TV’s AV inputs. In thiscase, the Antenna/Cable input is deactivated to preventunintentional switching into unused tuner. To re-activate,press MENU, select SETUP and repeat “First time setup”.Some menu items are grayed-out and cannot be selected.Why?Depending on certain modes or the selected input, someoptions are not available. For example, Zoom adjustments areonly available when the FORMAT is changed to zoom mode.