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JVC AV-32f704 TV has sound but no picture. Picture is a blanck screen as if TV was not turned on. In the last few weeks the TV has been turning itself off. Now there is no picture at all. What could be the problem?

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Re: JVC AV-32f704

The problem is your high voltage section in the main board of you tv,try to resolder the the circuit and components near the flyback

Posted on Oct 18, 2007

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Screen turns green The picture and sound are fine when I turn on the tv. After about thirty seconds the screen turns green and then turns off and the power light blinks.

Sad to say, but that's one of the ways a picture tube can behave when it's gone bad. After it warms up, one of the wire elements in the neck of tube sags and touches something it shouldn't. As a result you're seeing the green screen, and then the set shuts down for safety because of voltage feeding back. The only way to repair the set would be with a new tube, and that's completely uneconomical. You can buy a new 32-inch LCD set now for less than the price of a new tube, not including the labor to install the replacement and get the color alignment (convergence) set up.

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While watching tv the screen will go blank, sound

It might be a loose solder connection inside,try to prove it,the next time it goes blank,firmly give a whack to the back or bottom of the set,if it flashes back......sholud be a loose solder conn that a competent technician can find and repair

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Our 32'' JVC TV model # AV-32030 has an obscured picture.

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2 Answers

JVC AV-32F704

Is there any picture at all? No matter what the video input. Is this a CRT or LCD? If it is a CRT chances are the CRT is blown. Did you hear a pop the last time it powered up? Does the Menu come up?

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the problem with your tv is in the video circuit the ic or transistor needs to be replaced there is a box on the fixya home page just enter your zip code in the box and it will help you locate a repairman in your area.good luck.

Apr 13, 2007 | JVC AV-32F704 32" TV

1 Answer

JVC AV-32F704 32" TV Picture is blurry - cannot read any writing on the screen

You didn't mention if you saw fine white diagonal lines running through the screen from top to bottom. If so, you likely have a shorted Picture Tube which is not usually fixable. If there are no lines seen running through the screen, then it is possible the High voltage transformer which also has a screen voltage and focus control built in that could be bad. I would expect the cost of that part to be about $100, so the repair cost total could approach that of a new set I would guess.

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2 Answers

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