41Support Information●Frequently Asked Questions (FAQ)Questions AnswersSoundWhy is there no sound coming fromthe TV?● Make sure the volume is up and MUTE is off.● Check that the correct SAP (Secondary Audio Program) is selectedby pressing the [SAP] button on the remote control. (p. 14)● If the TV is connected to a Home Theater via optical cable, then:Check the connection, the audio system is on, the correct input isselected.● Check “HDMI1 input”, “HDMI2 input” or “HDMI3 input” analog/digital audio settings. (p. 29)Why is the sound unusual, distorted,low volume or in another 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 equipment connected tothe 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, ticking orbuzzing sound coming from the TVunit?● 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 may causethermal expansion and contraction that can produce sounds. Thisis not a sign of faulty operation or a malfunction.OtherWhat is the easiest and best way toconnect a High-Definition Cable orSatellite box to the TV?● Use an HDMI cable. It carries both digital video and audiosignal in HD. HDMI cable is the only cable needed to connectan HD device to the TV.Why does the [CC] button not displayClosed Caption?● When viewing TV via an HDMI connected device, such as aCable or Satellite box, CC must be enabled at the device.● Closed Caption is available only at supported TV programming.Why does the screen and back cover ofthe TV get warm?● The main unit radiates heat and some of the parts maybecome hot. This is normal operation and does not affect theperformance of the set.● Ensure good ventilation.● Do not block the ventilation holes of the TV and do not place theTV on top of other equipment.Why doesn’t the Remote Control work?● Check that the batteries are fresh, are of the same type and areinstalled with the correct polarity (+ & -).● To operate other devices, such as changing channels whenusing Cable or Satellite boxes or operating non-Panasonic Blu-ray players, use the remote supplied with the device.Why are some menu items grayed-outand unable to be selected?● 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.