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Have older Panasonic Big Screen and in the settings somehow - when you turn the set on the video is fine and after bout 10 seconds a big black box appears in front of the show - how can I fix

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Thats a bad circuit in the main video board, once it warms up the short appears and it sends a bad signal to the circuits that control the on screen options menu. There is no fix for it unless you can find an old working main board.

Posted on Aug 07, 2010

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Picture has a black image (box that black out part of the screen) that comes on seconds after TV is turned on, leaves when volume is adjusted, then returns after a few seconds. Does not appear when Wii is...


You need to go into your menu and go to close caption and turn off the text screen that some how got turn on, that big black box is call a text screen, and you are not the first person that this has happen too, Take care.

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Chances are it's just the closed captioning is turned on and set for "text" mode. Use the remote to go through the caption settings until it's turned off and that should clear up the box.

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If it is a large black rectangle that blots out the middle of the screen then you need to check your CC (closed caption) setting. Make sure the closed caption is turned off. I'm not up to date on the newer sets, but a lot of the older ones had more than one CC setting. One setting ran the captioning across the bottom, another put it in a big black box in the center of the screen. Most places didn't support the full text so all that showed was a big black rectangle on the screen. Since I'm not sure exactly what your rectangle looks like, this is my best estimate of your problem. Hope this helps.

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The problem with the black box happened to me. I had pushed the subtitle button on my remote by mistake. Interestingly enough, as soon as I pushed the SUBTITLE key again, on the remote, the black boxes disappeared.

It also says CC which means closed captioned-- So the bottom on my remote is Subtitle, and then on the subtitle button is cc...

I hope this helps

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Big black box in the middle of the screen


The black box is there because your closed captioning is on and set to text mode. Some channels send the signal even when there is no actual text to display. You can get rid of it by either turning off closed captioning or changing it to CC1 or CC2 mode instead of text. If you can't find those settings, then restore factory settings as directed in your user manual.

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This sound like a problem with the Closed Caption, on many sets if the C.C. is set to text a black box apears, and since it only happens on DVD you might look at the DVD menu and see if it has this Text featcher in the Closed Caption menu and turn it off

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All I can say is that the black box appears when the closed captions are on and set to TEXT. This is normal. Turning off the closed captions should make the black box go away. If the closed captions are somehow turning themselves back on, there may be an issue with the microprocessor in your TV.

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