|
Most TV's will often suffer from power supply failure sometime in their life. To check if it is something else - I would suggest when it plays up, to press the Menu button. If the Menu screen is also broken up like the picture then I would say it isn't the antenna, but could be power supply or main system board. On the other hand, if as suggested, it works with AV input but not on TV tuner - that it could be a tuner problem. Typically if the picture goes and the sound stays on, it can be power supply too, but more likely the backlight circuit if LCD, or the Y/Z drivers for plasma.
|