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Problem with the picture

There are 4inch black strips on either side of the picture...sort of looks like a hourglass...

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 ac in picture. electrolytics in power supply.

Posted on Dec 07, 2008

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Picture has hourglass look and has split screen picture hourglass comes and goes but split screen is continual


If hour glass on conventional set it is either pincussion circuit or power supply---by split screen if you mean folded over top to bottom in the middle that is in the same areas.

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My TV has been acting strange lately. When I turn it on, the screen looks purple and has these horizontal lines up and down the entire screen. They don't expand to both sides of the screen, though. WHen...


there seems to be a problem in the horizontal circuit...there is a control on the flyback transformer that is labeled "screen". (you'll have to take the back off) The flyback is the component that looks sort of round with the red high voltage lead coming out the top and connecting to the top of the picture tube.On the back of the flyback there will be 2 or 3 controls if 2 there will be 1 focus and 1 screen, if 3 there are 2 focus and 1 screen..using an insulated flat blade screwdriver, slowly turn the screen control counterclockwise to see if this will make the lines go away...if not then there is a horizontal cicuit fault and quit possibly a pincushion problem(hourglass effect)..these will need to be checked by a service shop

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hi there, it is worth for fixing it, cheaper than replacing it. you have a vertical section problem. look for a quilified service personnel for it to fix. ty

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1 Answer

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1 Answer

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check the cap that couple the horizontal transistor, this could be bad replace the flyback.all caps and transistors in that circuit should be cheked.good luck.

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You very likely have loose conection in the horizontal drive transformer,dont use or it will blow up all the way.Good luck.

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