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Only getting a 6-inch high strip of picture on TV

Discussion in 'Electronic Repair' started by Greg Bailey, Dec 9, 2007.

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  1. Greg Bailey

    Greg Bailey Guest

    Hi, we have a 27-inch Sanyo TV that's a year-and-a-half old. Not HDTV or LCD
    or plasma or anything, just a plain old tube TV, it's our third straight
    Sanyo TV, we've had good luck with 'em in the past and the price was right.
    We left the house for a while today and left the TV on ... we normally do
    that for security reasons so that folks coming around will hear a TV and
    think someone is at home. It was working fine when we left. When we came
    home, it was not working fine. I would say we're getting probably a six-inch
    strip of picture, that's measured vertically, horizontally it stretches all
    the way across the screen, a bit closer to the top of the screen than the
    bottom. What we are seeing is probably the top six inches of what would be
    the normal picture, a bit distorted but still recognizable as such.

    Does anyone here have a clue what might be going on with this, and how big a
    fix it would be? I know this is the perfect time to upgrade to a more modern
    TV, but with Christmas around the corner that would be an "ouch," plus we
    are limited at least for the time being as to what size of TV we can
    accomodate in our living room, and aren't really inclined to go to the
    trouble of changing that at the moment. We have an old fashioned
    entertainment center, where the TV sits inside the cabinet, unlike the newer
    ones where you sit the TV with its pedestal on the top, and this Sanyo, at
    about 26.5 inches wide, is absolutely the widest unit we can get into that
    space, and we're not interested in downsizing to a 19-inch widescreen that
    would be about like a computer monitor. There is a similar Sanyo 27-inch TV
    available now, only it's 30.5 inches wide and it just ain't gonna work. At
    the same time, however, if it's going to be a $100 or $200 fix for this TV,
    then you have to consider whether it's worth doing that, since the unit
    itself didn't cost all that much.

    Thanks in advance for any help.
  2. hr(bob)

    hr(bob) Guest

    Sounds like the set may be running fairly hot if it fits in the space
    that closely.

    As to the problem, it sure seems like one of the electrolytic
    capacitors associated with the vertical deflection circuit has gone
    bad. You don't say if you are trying to fix it yourself, what your
    background is, and perhaps most importantly, the model number of the
    set. Since certain sets have patterns of failures, having a model
    number, not just a 27in. Sanyo might get more responses here.
  3. Greg Bailey

    Greg Bailey Guest

    Gotcha ... this info is from the back of the set:

    Model DS27425
    Chassis 27425-07
    Family/Group VB8D

    No, I'm not trying to fix it myself, have no experience whatsoever in such
    things and don't plan to start experimenting now. Basically, what I was
    wanting to find out was how big a fix, on top of a bench charge, this is
    likely to be. My first thought is to repair the TV if at all possible,
    because we've been pleased with it and it suits our needs (we're not
    chomping at the bit to go HD; quite frankly it gives me a headache).
    However, if we're looking at $100-$150-$200 to fix an out-of-warranty TV
    that cost only $249 new at Wal-Mart, then I would have to think strongly
    about putting that much money into a new one rather than repairing this one.

    I never have thought about the TV running hot in that space, maybe I should
    and will keep it in mind in the future.
  4. James Sweet

    James Sweet Guest

    Well any time you take something to a repair shop you're probably looking at
    $100+, but this should definitely be less than $200. I do this stuff as a
    hobby, I usually charge about 50 bucks to fix something like this for
    strangers, if you decide to upgrade, try posting the old set on craigslist,
    anyone who's reasonably handy with a soldering iron has a good shot at
    fixing it.
  5. Meat Plow

    Meat Plow Guest

    The set is 1.5 years old. I know caps can go bad from defects or design
    problems in a short period of time but I wouldn't start there. Besides I
    don't think the OP wants to do the work, he just came here for an estimate :)
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