Tv shuts off and red light blinks 11 times whats the problem

SOURCE: panasonic viera hd tv th 50pz80u

We had a Pioneer that did the same thing. We called a Pioneer Service Center. It appears there was a recall on the Power Supply. They fixed it in our home at not charge.

SOURCE: tv shuts off after 10-20 minutes

its not the problem with ur electron gun tube or with any picture ic or sound ic. Every t.v. is microcontoller switched machine.
any damage to microcontroller ic that controls the switching will lead to this kind of problem.
0.01% chance of residue EHT voltage would have affected the microcontroller.

SOURCE: wont come on

Take out the SU board and try to start the unit. If it works, order that board.
If not install back the SU board and do the same with the SD board..
Boards are (rearview) on the left side SU is up and SD is down.
Good luck

SOURCE: tv wont turn on, red light blinks

i have the same problem

SOURCE: turn tv off for a

Hello. Panasonic 10 blinks issue have special troubleshooting flowchart to diagnose problem and could take some time for professional like me to correctly figure out faulty board/s. You can start with power supply board replacement just because out of my experience it is bad about 80% of the time. And most of the time another board is affected as well.
I would not recommend homeowner to try this repair without appropriate skills, I know several cases when professionals wasn't able to diagnose problem properly and ended up losing too much money and effort.
In case if you have two boards in bad shape - you already looking to spend not less than $400+ in parts.
Maybe better way is just to invest in new one. And stay away from plasma technology. It is a science project that never got finished.
I would recommend LCD or LED Panel TV.
Regards.
Russ.