Out of the blue a large black box shows up in the middle of the screen. It is a perfect rectangle and takes up about 80% of the screen. When you move the volume button or change a channel it goes away but comes right back
This is a background for text, even though you aren't seeing any text at the time. Since it covers most of the screen, it sounds more like a demo mode screen than closed captioning. Go into your setup menu and make sure that neither of those is selected. If necessary, restore the factory settings. I'm assuming that this is coming from the tv itself, and that you don't have a VCR, Tivo, etc. Good luck!
we have a hitachi 50ux14b and when i went to turn it on the tv turns on but i get no sound or...
(More)
we have a hitachi 50ux14b and when i went to turn it on the tv turns on but i get no sound or picture. Before this happened the tv when turned on it jumped up and down like the vhs units used to when the tracking was off.
From the top I have a horizontal white line that runs accross the top of the screen and distorts the...
(More)
From the top I have a horizontal white line that runs accross the top of the screen and distorts the picture