Try unplugging power cord for 10 sec. or for over night. That might be the trick. I did the same trick on a satillite receiver and a DVD player that got stuck like your tv is doing and it worked, doesn't hurt anything to do so. Hope this helps.
SOURCE: 42" Plasma TV Problem
the problem for 7 blinks is an Interface
board. Had mine fixed yesterday. Apparently there is a glitch in the interface board that sends signals to the television. Basically the glitch shorts out the board and the t.v wont turn on and you will see the power light blink 7 times pause then 7 more. They replaced the board with a new one and updated the software on the new interface board. It works like new and i couldn't be happier to be watching it again. Hope this helps everyone else out.
SOURCE: Panasonic Viera 42" TV won't tun on
This problem happens when you connect a DVI-HDMI input to the back of the set. It can happen other ways too though. Press and hold your power button, which will reset the unit to it's factory defaults, and should return it to normal use.
SOURCE: Viera Link not work between two brand new Panasonic devices
You need to select setup from the TV menu then switch the Viera link on. I think retuning must have switched it off.
This worked for me
SOURCE: Panasonic viera
1.You may have the magnet of a speaker too close to the TV.
2.Turn off other electrical devices in the house one at a time.
3.Faulty cable.
Puzzler.
SOURCE: Panasonic Viera TH-50PX60U Plasma is stuck on one
Forced to factory default: press and hold [VOLUME ( - )] on the TV and press [MENU] on the remote 2 seconds. Exit: Unplug Power to reset.
If it does not help, the main board need to replace. For further questions, please add your comment.
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