We may have found other answers which could help you.
Click here for Image Tv ScreenFlicking between AV and dvb?
My tv Panasonic tv TH 42-42pz70ba?
Saying temporarily off air is it a minor issue?
L32V10B white screen with vertical coloured lines?
How can i fix my Panasonic TX-32LXD700?
How to remove EC2/RGB from top left hand on television screen?