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Re: JVC service or questions

Richard Posted Aug 19, 2004, in response to:Stacy Sample

I have a JVC t.v. model AV-27230. The problem is that there a series of white horizontal lines that run across the top of the screen. They take up a quarter of the screen and they are always there even when watching a DVD or Playing a video game. Any advice on what the problem is....I just want to know if it is worht it to fix it?

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9 comments

    I have this same set and a similar problem. I have 2 very thin white bars, each about about and inch or two wide in the upper left corner of the screen when watching cable or a dvd. I thought it might be interference from my center speaker, but if that were the case then there should be these bars when on a blue screen for a video input. I also tried unplugging the coax cable because I thought it may have been a bad line, but with no cable coming in there are still the bars when watching a dvd. Anybody know how to get into the service menu to maybe shift the image slightly up to eliminate the problem?

    Comments 2, Last comment by Rachel Dec 03, 2008

    Re[2]: JVC service or questions

     Bret Posted Sep 20, 2006

    Man thanks for the great thread - I had the white lines with reflections in the upper part of my screen as well and I changed out the capacitor mentioned. It worked like a charm and the part cost $1.30 from Radio Shack. BTW, I don't know anything about electronics and just decided I had nothing to lose by giving it a try. Thanks

    Comment 1, Last comment by rick buzzeo Aug 15, 2008

    White horizontal line

     John Posted Nov 25, 2006

    will this fix my white line when replacing the C424 cap?

    Comment 1, Last comment by hopeman Apr 15, 2007

    Add me to the JVC white lines across the top of the screen gang. A smart fellow who used to repair TV's guessed that the problem might be The filter capacitor on the 25-28 VDC supply to the vertical IC is failing. As it gets warmer, its value increases, resulting in the improvement you describe. Eventually the vertical deflection IC will fail in this situation, resulting in a single white line across the middle of the screen. He didn't think it would be too expensive to repair, but didn't guess at a dollar amount. Mike

    Comments 2, Last comment by Tom Sep 06, 2006

    I started having this problem a few months ago and it's slowly gotten worse, now it's to the point where I have 4 lines covering about 1/5th of the screen. I called JVC and they basically told me they didn't care about it and that this was the first time they had heard anything about it. Which is about par for the course with pretty much any manufacturer these days, so I wasn't suprised. Guess It's time to find a new TV.

    Comment 1, Last comment by Paul Sep 12, 2005

    Did you guys ever figure out what was causing the lines? I have the same problem.

    Comment 1, Last comment by Chris Aug 18, 2005

    Hey - room in the club for one more 27" JVC owner with horizontal white lines across the top of the screen. Problem started with just a couple now up to about four inches of the screen. Doesn't sound promising.

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    I called JVC yet again and they still deny the problem is their fault because they haven't heard any complaints about it. We have about 8 people here who are experiencing this problem - if we each were to call JVC and complain about it, PERHAPS they might be willing to fix it for free. JVC Customer Support 1-800-252-5722

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    Ok, the situation has now deteriorated to exactly what Richard describes. When I turn the tv on, the top quarter of my screen has thin white lines that go all the way across. After the tv is left on for a while, it slowly diminishes so that only the top 5th or 6th of the screen has these thin white lines. This problem is apparent on every video setting (video 1, video 2, video 3, and tv). Once again, the model is JVC AV-27230. I would REALLY appreciate some help.

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