Ive had my daewoo TV for years now with no problems. Today I come home
and turn it on...and there is a black box that is taking up half of the
screen. When i go to change the channel the box disappears...and then
comes back moments later on the new channel as well. I went throught
the entire menu...I can't get it to go away....any ideas? Or is this tv
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Check your closed-caption settings. If you have captions on and set to "text" mode, this can happen. The TV blanks out the area on the screen where the text should go, but there's nothing to display. Turn off captions or set for regular caption mode, and that should clear up the mysterious box.
Here's the symptom: A mysterious black box covers some or most of the picture on your TV, but not all the time. It may not show up on all channels, or sometimes it disappears only to come back later.
No, it's not the picture tube, it's your closed-captioning. Somehow your TV has been set to "text mode", and the screen is being cleared for text that isn't there. On channels or shows where captions aren't being broadcast, there's no box. But the box returns when captioning is being sent.
Many TV set remote controls have a single button to set closed-caption modes, so it's easy to set a TV to "text" without knowing it. (Especially when you have kids who love to press buttons!) Then when the box pops up, it's a mystery.
Simply press the captioning button on the remote, or use the set's menu, to cycle through the settings until you turn captions off. No more box!
hi all .ive had the same problem,a thick black line down
screen.sometimes it flickers from top to bottom and other permantly in
view.but i have solved it.forget your ic boards and taking apart tv.have
you got either a ps3 or wii connected to tv.if so unplug power lead
from socket and relocate in seperate socket.make sure the lead is
completely free of any other leads and you might just find this works.i
think the power lead creates some sort of frequency that the tv picks up
.good luck hope it works
Turn off the closed-captioning. If it's set for text mode, the screen will blank out an area for the text to be displayed. On channels or programs where captions aren't being used you won't see any problems, but other times you'll have the mysterious black box. Many TV remotes have a single button to control captions, so it's easy to get into text mode without knowing it.
The problem is in the vertical section of the main board. Bad capacitors and maybe the vertical IC. If you are not inclined to be a tech you will have to take it to a shop.. I don't know what they may charge but I normally get $69- $89
6 year old tv probably not digital ready. The converter box will work if tv is on channel 3 and you use a UHF antenna. Most converter box connections have 75 ohm connectors, your tv may have the round connector to accept the input signal. If you have screw on terminals on the tv you will have to go to Home Depot or Lowes and get a matching transformer to go between the tv and the converter box. UHF antenna can be made out of a coat hanger. Just make a circle clean the paint off ends and attach. Or just buy a digital booster antenna at WalMart.
Can you take a picture of the screen and post it? It is not possible for both the horizontal and vertical stages to fail at the same time to produce a cross. A picture of the screen would help significantly.