Help! Discoloration on my new TV: is it toast?

Discussion in 'Archived Threads 2001-2004' started by Mark Walker, Jun 5, 2002.

  1. Mark Walker

    Mark Walker Producer
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    Well-
    I got a nearly new (floor demo for a mere 8 days)
    Toshiba 36HFX71 HD-ready television, and when I got
    home tonight and really looked at the image, I noticed
    the color was not right in the upper right corner about
    4" across and 3" down in a flaring pattern.
    So I hit "stop" on the DVD (which I was using via
    the component inputs), and with the solid blue screen,
    it is VERY evident. I am red/green color blind, but with
    a blue background, it looks very red,
    and with a red image being displayed
    (I popped in Dick Tracy, with
    all of its use of primarys to take look.)
    the "flared" area looks greenish-grey.
    The opposite corner has some slight darkening, but
    it is slight.
    So, I tried my VCR connect, just to see if maybe it
    was due to the component connection.
    Nope: VCR on stop, blue screen appears, big discolored area.
    So, I hate to sound ignorant, but I just cannot believe
    a NEW television set has this kind of problem.
    Will it go away, or should I call the store and
    involke the warranty? We're talking about the picture
    tube here!
    The television has been on for 2 hours now, and it is
    still there, plain as day, so I guess "warming up" isn't
    the issue...
    [​IMG]
    Anyone care to answer my dumb question?
    Mark
     
  2. Richard Travale

    Richard Travale Producer

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    Are your speakers shielded? It may be magnetic interference.
     
  3. Mark Walker

    Mark Walker Producer
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    Hey Richard-
    (Thanks for the response.) [​IMG]
    The speakers I have are not shielded, but they are not
    next to the television either.
    I have my whole rack between
    the television and the left speaker (about 22" away)
    and on the right, I had not finished hooking up all the
    connects on the back, so the nearest the television is
    to the right speaker is 20". (and I keep a rack full of
    S-VHS tapes, so it never gets closer than 11" to the
    television.)
    I learned that lesson from my old 27" television several
    years ago.
    Mark
     
  4. Chris Stiefel

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    Did you try unplugging the TV over night? Maybe you brushed by a powerful magnet source when you moved it and it needs to Degauss. Some TVs do that when power is removed from them. Though you'd think they'd just put in a Degauss button like most computer monitors now-a-days. [​IMG]
    Anyhow, give that a shot and see if your problem goes away in the morning. If not, perhaps try moving it in the room slightly and seeing if the pattern changes. You could have some other interference in that area. Maybe 6 inches from the wall would help or something of that nature. Worth a shot to try to help figure it out.
    Good luck.
     
  5. Mark Walker

    Mark Walker Producer
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    Chris-
    Well, what you described may be what it was, though I cannot
    think of the source....
    This morning I turnned on the television, and it it looks
    like the the problem spots are 85% better.
    Whew!
    So, I will try unplugging it, and leaving it off for
    18 hours, then maybe it will be all cleared up.
    Thanks to you both for your suggestions and comments!
    [​IMG]
    Mark
     
  6. Jack Briggs

    Jack Briggs Executive Producer

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    Meanwhile, Mark: Have you tamed the picture settings on this floor model? I am sure it was cranked at torch mode in the store.
     
  7. Mark Walker

    Mark Walker Producer
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    Jack-

    I am a total freak about burn in, so the first thing I
    did was movie the settings from "Sports" (which had the
    contrast at 100) to "Movies" (which has a contrast of 50),
    and then to film.

    Then, I decided I really wanted the contrast at 30, because
    I black out all the light in the room, so I bascially have
    the television set at "Movies, Film" only with the contrast
    at 30 (now I am redundant, but hey...its the caffeiene).

    I also turnned on the auto flesh tone, but what are the
    general thoughts on this? Good or bad as far as general
    picture quality?

    Personally, I would love to find a good ISF calibrator
    in the Portland, Oregon area to tweat my television.


    Mark
     
  8. Robert P. Jones

    Robert P. Jones Second Unit

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    Your set may be suffering from "purity" misalignment, something that is supposed to be completely addressed at the factory. Most is done with concentric neck magnet rings, some is done with individual magnets pasted to the back of the tube. Messing with those rings now, to correct the purity, could have a deliterious effect on your convergence, unfortunately. The tech who does the job should be adept at both.

    This should be covered under your warranty. I'd go in that direction.

    I will be in Portland soon, probably 3-4 weeks from now or so.

    Mr Bob
     
  9. Chris Stiefel

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    Mark,
    I agree about being burn in paranoid. But on a tube, you don't have to be that paranoid. But hey, if it was too bright for your personal tastes anyhow... [​IMG]
    Did the color problems get any better after leaving the power off? Just curious.
     
  10. ThomasL

    ThomasL Supporting Actor

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    Mark, the Toshiba may be more sensitive to the magnetic fields being generated by your speakers. If you continue to have the problem, I'd remove them from the equation and then unplug the set and see if the problem clears up.

    good luck,


    --tom
     

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