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Geometry problems on RP tvs (Toshiba 42WH18B)

Discussion in 'Televisions' started by bjend, Nov 26, 2002.

  1. bjend

    bjend
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    I have recently noticed that the black bars on some dvds and letterbox movies are not straight any longer.

    Its not like the whole picture is tilted. The black bars are a bit curved and towards the right side of the screen they bend more. It is not much but very annoying when you know about it. I can also see this vertically, when switching to 4:3 mode.

    I called Toshiba in Norway today and was told that there is nothing to about it. A lot of the bigger CRT and RP tvs have this problem.

    Is this right. Is there nothing to do about this problem. Anyone with any experience ? :confused:

    BjE
     
  2. Shady Deal

    Shady Deal
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    Hi,
    i can be fixed via the service menu using the GREEN grid but you have to be very carefull.
     
  3. bjend

    bjend
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    Thank you mark

    I've printed the instructions on how to enter the service menu but never deared to go through with it. You say that I must use the GREEN grid. Is that the same grid as I adjust the convergence settings (in the service menu) with ?

    When adjusting the convergence in the service menu, is it done in the same way as with the remote? Can I inflict "unrepairable" damage?

    BjE:confused:
     
  4. damtom1

    damtom1
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    Just a word of warning,i tried to "tweak" the settings on my Toshiba RP.Accessing the service menu is easy enough,but one wrong button pushed and you could be in all sorts of trouble.If you are not 100% confident in what does what,i'd leave it.
    I have no idea what i pressed,but i managed to mess up every thing(picture,geomatry,convergance..etc).Even after paying for an engineer(not cheap) to reset everything,the picture was far from what it was.
    Luckily enough i sold the TV,and am waiting for my new set to be delivered.To someone who is not that familiar with RP sets,it was still quite watchable,but i knew what it was like previously.So every little defect annoyed me!
    I really am a complete novice,and you a probably more capable than myself(not hard:rolleyes: )...but it really is a sinking feeling when you manage to kill your TV,just by messing around....:mad:
     
  5. Shady Deal

    Shady Deal
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    Yes it is the same green grid in the convergence menu. But be very carefull. The green grid does change the geometry but if yiur not sure you could make it worse.

    If you are not sure of doing this yourself a "Good" engineer would be able to sort it out for you.

    Regards
    Mark
     
  6. bjend

    bjend
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    Thanks again for your tips.

    I think I'll wait. As long as it doesn't get worse thats probably the safest ... After reading some of the "horror stories" here on the forum I don't even dear open the service menu :blush:

    BjE
     
  7. Bozza

    Bozza
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    newsposts and damtom1 you have PM's, hope u can help :)
     
  8. Shady Deal

    Shady Deal
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    I have replied hope it helps!
     
  9. Bozza

    Bozza
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    Cheers my friend, I have sent u another pm
     
  10. damtom1

    damtom1
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    No PM yet!:(
     
  11. Bozza

    Bozza
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    Sent again :)
     
  12. Bozza

    Bozza
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    Newsposts,

    I have sent you anoher PM, sorry. Hopr u can help on this one too. Last PM I promise ;)
     
  13. Shady Deal

    Shady Deal
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    Bozza,
    Look at the following link I think it explains things ok, but I am not sure on your set if button "7" works to enter the convergence grids. I am sure the yellow teletex works ok though. Let me know how you get on.

    http://www.bus.ucf.edu/cwhite/theater/Convergence.htm

    (Have laso sent you a pm about the manuals or lack of!)

    Regards
     
  14. Bozza

    Bozza
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    Thanks for the link, I will certainly let u know how I get on, Cheers.
     

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