Tv powers on but no picture just black
Lights up but no picture
I have not been a fan of repairing plasma TVs. They do have the best picture and color. In your case I would guess the power supply board has problems. Even if you repaired this, you will also need to replace the buffer boards. The buffer boards are those that light the screen. So, to save money, these are not really feasible to repair. Thanks for asking, Matt of Martins TV Repair.