Responder a: Plasma tv has lines on itIf the lines are vertical, it's typically the E / F Buffers on the control board. Best thing to do is disconnect and clean all the connectors on the E \ F Buffers. They are typically at the bottom of the unit and run the whole length. If that does not work, then consider replacing those buffers - they are cheap. If it doesn't work replace the control board. Good luck.