Question about JVC AV-36320 36" TV

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Jvc model av36230

I have a jvc 36 inch tv that when you turn it on the picture and sound is ok except the top of the picture tube there is about an inch where it is dark and under that there is 3 to 4 fine lines going across the screen please any help greatly appreciated it appears to be in the vertical section????

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Re: jvc model av36230

You know its in vertical section, try to look for a capacitor and changed it, this is more of a capacitor problem.

Posted on May 16, 2007

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see the b. diagram and test the power supply ;transistor, fuse, filter, switch, c.breaker rectifier,IC regulator voltage.
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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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Sounds like your picture in picture is on with no program source for the 2nd tuner. turn off the picture in picture feature if the tv is so equiped.

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sound like you have 1 or a couple of leaky/bad capacitors in the tv's vertical circuit, typically, there sould be 5 to 10 caps. in all, but you just need 1 bad one to cause your problem. good luck.

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