If there is a problem with your TV, please refer to the table below to determine the symptoms, then carry out the suggested check. If this does not solve the problem, visit the Panasonic website for further assistance. (see cover)
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How do I view the picture from devices such as a: Cable/ Satellite box, game console,
Press the INPUT button on the remote to select the correct input source.
Check that the device is turned on and functioning correctly.
Check if the power cord is plugged in and the TV is turned on (front red LED light should be on; not blinking)
Press the INPUT button on the remote to select the correct input source.
Ensure all connections are correct and secure.
When using external video source, such as a Cable/Satellite box or DVD player, check that the device is on and functioning correctly. 
Press MENU on the TV’s remote control. If the menu is displayed, then the TV is working; recheck above steps.
Press the INFO button on the remote to confirm the type of signal being received (p. 16). HD signal should be 720P, 1080i or 1080p.
Select a High Definition channel from your HD source (Cable, Satellite or fiber optic service). HD channels sometimes broadcast
Ensure that your HD source (HD box,
Change the format (aspect ratio) of the picture by pressing the FORMAT button on the remote control. (p. 17)
Check the aspect settings on your external video source, such as Cable/Satellite box,
When using a cable service (without a box), check that all connections are secure.
When using a cable or satellite box, change the connection (wiring) to Composite, Component or HDMI. (p. 11)
If you’re using an antenna, then check that connections are secure. Change the position or direction of the antenna and check the “Signal meter”. (p. 31)
Check if electrical products such as kitchen appliances, fluorescent lights or light dimmers are nearby. They may interfere with the TV’s picture.
Try viewing a picture from another device, such as a DVD player or a game console, to narrow down the source of the problem.
Change settings of Closed Caption (CC). (p. 16, 35)
The TV has gone into shutdown mode to protect itself. Try unplugging it for a few minutes and connecting it again. If there was a temporary power surge on the AC line it may now be OK. If the blinking returns, call
The Plasma panel is made up of a few million pixels and is produced with advanced technology through an intricate process. Sometimes a few pixels may be bright or dark. These pixels do not indicate a defective panel and will have no impact on the performance of the TV.