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by Rclfyer on January 1st, 2007

Rclfyer

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I have a 14 or 15 year old 27" JVC. It worked great until a few days ago when I turned it on and discovered that the picture was black with the exception of a narrow horizonal band in the center of the screen. What's going on besides old age? Thanx

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Answers. 6 helpful answers below.

  • by ChaiCustard on January 2nd, 2007

    ChaiCustard

    The vertical drive is broken: Because TVs "scan" the picture onto the tube, a bit like a printer, if the part that moves the picture 'beam' up and down stops working, the beam can only move sideways, hence creating a horizontal line. The same thing can happen if paper gets stuck in a printer.
    As for repair, most repair shops probably wouldnt carry spares for such old TVs anymore. It could be a broken solder joint, capacitor, diode or transistor. If its a solder joint, then tapping/ hitting the TV might make it briefly work... which is good because it confirms the joint is the problem.

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  • by Spindizy on January 1st, 2007

    Spindizy

    That would put your tv in the early 80's range for manufacture. During repeated use, some of the solder connections can develop whats called "rosin joints" where the rosin in the solder comes out and prevents a good connection on the circuit board. The best thing you can do is take the TV to a shop and have them check it out and give you an estimate for repair. If the cost of repair is more than a new tv, the answer is obvious.

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  • by pcdoctor on March 19th, 2007

    pcdoctor

    ha ha sounds like bull..

    dry joints are possible..(it's where the old solder has become worn, heated and causes a bad connection) re-soldering can fix that.
    but what you describe is strange, question is do you have a full screen, is it folded at the top and or do you have horizontal lines at the top of the screen...
    if so i would check the electrolitic capacitors in the feild output section of the set.
    theses ate caps marked with a + on one side and is important to put them in the correct way.

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  • by JUSTNORMAL on January 1st, 2007

    JUSTNORMAL

    Sounds like the picture tube is gone. It would cost alot to have it repaired, so maybe time for a new TV..

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  • by Smurfetta on March 24th, 2007

    Smurfetta

    I think that i have the same problem. Sometimes th epicture will strech, and turning it off then on again used to help. Now I can "smack" it on the side and the picture comes back.
    But, for only a matter of seconds.
    Judging by the answers here I'm on my way to the repair shop.
    Wish me luck.

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  • by Smurfetta on March 24th, 2007

    Smurfetta

    Mine too. If I smack it the picture will expand but, only for a matter of seconds.
    Wish me luck, I'm on the way to the repair shop.

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You're reading I have a 14 or 15 year old 27" JVC. It worked great until a few days ago when I turned it on and discovered that the picture was black with the exception of a narrow horizonal band in the center of the screen. What's going on besides old age? Thanx

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