JVC AV-27530 27" TV "cause sudden change brightness" Questions

...sudden changes in brightness are caused by the change in voltage inside the tv,not in the outlet in the wall but inside the set,The changes are an indication something is going wrong and it needs to ...

brightness, sharpness, etc. but it doesn't change anything Hello; I am John at J. D. Electronics, Poland Maine. This problem is very likely caused by a defective LCD panel. This part is very expensive

change the color on the screen.. What could have happened? It sounds like the set has become magnetized. It could possibly be from an external speaker magnet or some other magnetic field (ie. a vacuum