46 47FAQs, etc.Frequently Asked QuestionsProblem ActionsScreen Sound OtherFAQBefore requesting service or assistance, please follow these simple guides to resolve the problem.If the problem still persists, please contact your local Panasonic dealer or Panasonic Service Center for assistance. Fordetails (p. 49)White spots orshadow images(noise)Check the position, direction,and connection of the antenna.Interference orfrozen digitalchannels(intermittent sound)Change the direction of antenna fordigital channels.Check “Signal meter” (p. 35).If the signal is weak, check theantenna and consult your localdealer.The LCD panel movesslightly when it ispushed with a finger.A clattering soundmight be heardThis is not a malfunction.There is some looseness aroundthe panel to prevent damage to thepanel.The remote control doesnot workAre the batteries installed correctly? (p. 7)Are the batteries new?Pictures from externalequipment are distorted whenthe unit is connected via HDMIIs the HDMI cable connected properly?(p. 27, 39)Turn Off the TV unit and equipment, thenturn them On again.Check an input signal from the equipment.(p. 44)Use equipment compliant withEIA/CEA-861/861B.When the channel is changed onan STB that is connected withHDMI, “HDMI” may be displayedon the top left of the screenThis is not a malfunction.Recording does notstart immediatelyCheck the settings of the recorder. Fordetails, read the manual of the recorder.If there is a problem with your TV, please refer to the table below to determine the symptoms, then carry out thesuggested check. If this does not solve the problem, please contact your local Panasonic dealer, quoting the modelnumber and serial number (both found on the rear of the TV).Some spots remainbright or darkThe LCD panel is made up of a few million pixels and isproduced with advanced technology through an intricateprocess. Sometimes a few pixels may be bright or dark.These pixels do not indicate a defective panel and willhave no impact on the performance of the TV.Chaotic image, noisy Check nearby electrical products.(car or motorcycle ignition systems, fluorescent lamp, etc.)No image isdisplayed on screenCheck Picture menu. (p. 24)Check the cable connections.Check that the correct input has been selected.Only spots are displayedinstead of imagesCheck the channel settings. (p. 34)Check the antenna cables.Neither image norsound is producedIs the power cord plugged into the outlet?Is the TV unit turned On?Check Picture menu (p. 24) and volume.Check the AV cable connections. (p. 9-10)Check that the correct input has been selected. (p. 20)Black Box appears Change settings of Closed caption (CC). (p. 36)No sound is producedAre the speakers’ cables connected correctly? (p. 39)Is “Sound Mute” active? (p. 11)Is the volume set to the minimum?Is “TV speakers” set to “Off”? (p. 24)Change “SAP” settings. (p. 15)Check “HDMI 1 in” or “HDMI 2 in” settings. (p. 24)Sound is unusualSet “SAP” setting to “Stereo” or “Mono”.Check the HDMI device connected to the unit.Set the audio setting of the HDMI device to“Linear PCM”.If digital sound connection has a problem,select analog sound connection.Unknown sound heard1- Sounds from TVcabinet2- Tick/Click sound3- Buzzing sound1- Changes in the temperature and humidity of the room may causethe TV’s cabinet to expand or contract and produce metallicsounds. This is not a sign of faulty operation or a malfunction.2- When the TV is powered on, an electrical component in theTV activates producing a tick/click sound. This is not a sign offaulty operation or a malfunction.3- Electrical circuits are active while the TV set is on.This is not a sign of faulty operation or a malfunction.The main unit is hot.The main unit radiates heat and some of the parts maybecome hot. This is not a problem for performance orquality.Set up in a location with good ventilation.Do not cover the ventilation holes of the TV with a tablecloth,etc., and do not place on top of other equipment.