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Kv32fx66 owners - geometry query

Discussion in 'Televisions' started by bruno_scalera, Nov 28, 2002.

  1. bruno_scalera

    bruno_scalera
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    I had this TV delivered from JLewis yesterday and i'm reasonably happy with it, but notice that the geometry is not perfect is this the case with you guys?

    Horizontally towards the bottom of the screen the image bends upwards slighlty. Also, the right hand side of the image when viewed in 4:3 has an outward bend and looks slightly stretched. Or say when watching football the touchline chalk lines look bendy etc.

    My wife thinks i am mad, but when i see on-screen graphics or teletext, both horzontally and vertically this image is not straight.

    I have tried using the rotation adjust, but adjusting makes another part of the screen look odd as the image is bending slightly.

    Are there any other ways of adjusting the fx66 as i can't find this from the manual or the on-screen display?
     
  2. w3dal

    w3dal
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    Hi,

    I only view mine in Wide mode or in some cases smart. I will check tonight and get back to you, but so far i have 3 weeks of no problem viewing infact im well chuffed with my 66.

    I have not changed any of the settings since i got it out of the box.

    Cheers

    Dal
     
  3. kennrc

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    the horisontal upward bowing-effect on the bottom of the screen is a well known "design-feature" ;) on The Sony FX65.

    Despite what some people say, the problem also exists on the new FX66-sets. It might have gotten better and appear with less frequency - but it is still there. I have one in my living room, with this problem.

    The problem is especially visible, when watching letter-boxed movies or using on-screen menus with straight lines. There is now way to directly adjust this problem - not even in the service menu. Som people say, that you can indirectly adjust it by tweaking varios settings in the service menu. But I have had no luck with this.

    So I've accepted that there are no way to make a perfect 32" picture with the current CRT/Trinitron technology. The FX66 has so many other positive sides, that still make it a great TV. Today I don't think about it any longer, and consider the problem to be minor.

    It should, however, be possible to correct the vertical bowing problem in the servicemenu.
     
  4. bruno_scalera

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    how do you access the service menu to correct the vertical stretching/ bend? Is this recommended area for engineers only?

    Cheers

    Bruno
     
  5. kennrc

    kennrc
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  6. JonH

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    Bruno - I have the same problem. See my thread "should I request a replacement".

    At first I thought it would be tolerable but I switched to sky sports news the other day and both horixontal and vertical lines were all over the place - shot to bits with bends, wavy bits etc. Nightmare. :mad:

    Anyway, I have requested a replacement. Not expecting perfection by any means, but something better than what I already have would be nice.
     
  7. bruno_scalera

    bruno_scalera
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    thanks for the info on the service menu ken, i've managed to fix the vertical bowing problem, but i still have the horizontal bowing at the top (downward) and on the bottom of the screen (upward), which is pretty evident when on screen graphics appear or when using teletext and you do say was not really possible to fix. Been through the geometry service menu and the panorama option to no avail :(

    I'm going to have a look at other 32Fx66s today in various stores and see if they suffer the same, if they do i'll just have to get used to it, if not i'll request a replacement to see if it is better.

    Cheers

    Bruno
     
  8. bruno_scalera

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    We'll i had a look at a few other 32fx66s and all of the ones i've seen seem to suffer from the horizontal bowing effect at the bottom of the screen. On some it was minimal, others it was worse than mine.

    Mine seems to have a bad uneven bowing effect at the bottom of the screen which is annoying, so may request a replacement from JL, and hope the replacement has less bowing.

    I'll try one more attempt in service menu tonight to fix this, but i don't hold out much hope.

    It's crazy that manufacturers can make the images on these crt tvs look superb, but they can't get geometry right :mad:

    I've also noticed that my tv has two very faint vertical bars on the left of the screen when viewing a bright picture, not sure if that is part of triniton technology or not?
     
  9. kennrc

    kennrc
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    No CRT/Trinitron screen can make a perfect picture. The proces is so delicate, that even differences in the earths gravity can result in the need of a recalibration. But as you say: the imperfections vary from minor til unaccatable.

    All Trinitron screens have two horisontal bars, which are barely noticable - but they can be spotted when viewing a bright picture. These bars/wires are used to stablise the picture. You shouldn't have any vertical lines.
     
  10. HowieC

    HowieC
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    I've been setting up Sony monitors and receivers for some 20+ years and imo it is possible to achieve 99% perfect geometry. But its more difficult than you may think.
    I've just taken delivery of a 32fx66 and the geo on delivery was really poor, obviously a combination of errors. I spent an hour or so with it and the geometry is now nigh on perfect. However when a trinitron is factory adjusted final corner adjustment is often done with magnets attached to back of the tube. If readjustment is required these magnets will often now be in the wrong position and give rise to corner convergence errors. I've ended up with perfect geometry but some convergence error in the top left corner.
    As I said trinitron geo adjustment is like many things, easy(ish) when you know how. The main thing to remember is that all geo adjustments should produce symetrical effects. If Top and Bott require different amounts of correction something else needs adjusting to equal up the error.
    Its a bl**dy shame that these sets are coming out of the factory so badly set up, but they can produce stunning results.
     
  11. Joe Pineapples

    Joe Pineapples
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    HowieC

    i wish you lived nearer to me, up here in the grim north m8 - you really sound like you know what you're doing, and as i am soon to purchase the same set, i would gladly pay someone £50 for an hour of their time to get my tv as near perfect as possible (assuming it arrives with bad geometry).

    makes you wonder if it would be worth someone advertising in specialist mags etc, with this specific service.

    dean
     
  12. toninho

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    HowieC

    You sounded a pro to me! Can you tell me if a pink discoloration is the bottom left corner of my 32fx65 can be removed?

    Thank you.

    T.
     
  13. HowieC

    HowieC
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    Toninho
    How does this pink area show up, and how big is it.
    On what sort of picture is it noticable.
     
  14. toninho

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    It shows on red images (and yellow ones too). It's about 1.5"- 2". It's
    on the the bottom left corner, kind of a circle very near the edges of
    the image.

    It usually gets worse as when I keep the tv turned on for long periods 4,5 hours, I think the
    degauss lessens this problem).

    I used to have a VCR on the tv stand, but I removed it because it made
    the spot more visible, even if the VCR was unpluged (maybe the metalic
    structure of the VCR has something to do with it).

    Thank you for your quick answer HowieC.

    T.
     

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