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Check your closed-caption settings and make sure it's turned off. You'll probably find it's now set to text mode. The set is blanking out the part of the screen where text would be displayed, but there isn't any.
Go into the menu and find "closed captions. Once there, turn off the "text" function. If you don't use closed captions, turn it all off. This will make your box go away. Let me know if I can be of further assistance
sitnlisten - yes it does appear your pix tube is getting weak,but we may be able to turn up the flyback alittle to brighten up the picture.If you take the back off you will see the flyback-large black unit with a wire going to the round rubber cap on the back of the pix tube.Look at the flyback there are usually 2 adjusters one marked focus the other screen,just turn up the screen a little bit at a time.If you turn this up too much you will wind up with retrace lines on the screen.You may also want to check the pcboard ass'y for a sub bright adjust,and same thing small adjustments.If this don't help your pix tube may be too far gone.I hope this helps. cooltek Feb.1/08
This type of problems and some OSD problems are occurs due to microprocessor over modulation. One option is there. That is if you have any child lock or keypad lock or frontpanel lock. First locked the system. Now check your problem arise. If it is not OK. Otherwise try to find nearby any radio frequency cable across in your tv. keep away that cablewire also. your problem solved. Even you get Call your nearst service provider..
On your remote should be a button called TV caption or text. Turn off the closed caption as someone hit it and turned it on by accident. If its not on your remote, then it is in the menu. Good Luck
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