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    Are the CF-28 / Cf-29 screens compatible?

    Discussion in 'Panasonic' started by jtsiek, Nov 10, 2009.

  1. jtsiek

    jtsiek Notebook Guru

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    Hi All!

    Okay, I have a CF-29 with some weird blemish(kinda like a fingerprint but the surface of the screen is spotless) on the LCD screen(not the touch panel) so I was wondering if the screen from a 28 can be used on a 29...I doubt it can but I thought I'd ask anyway.

    Thanks!
     
  2. Alex

    Alex Super Moderator

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    No it will not be the same lcd panel
    The screen brightness on the cf-29 is 100 nits brighter I think
    Do you have a cf-29 mk-2 that has the mark on the lcd?

    Alex
     
  3. Toughbook

    Toughbook Drop and Give Me 20!

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    Nope, nada, nyet, ain't gonna work...
     
  4. jtsiek

    jtsiek Notebook Guru

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    Ah, well, I didn't think it'd work...and it is good to find out before I take them apart ;)

    It is the mk-3 model
     
  5. Doobi

    Doobi ToughBook DeityInTraining

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    Are you sure it ISNT a fingerprint on the screen protector? Perhaps some noob replaced the screen protector and got his dum thum on the sticky side?
     
  6. nukinfuts29

    nukinfuts29 Notebook Consultant

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    Thats a really good thought, definitly worth checking out
     
  7. ohlip

    ohlip Toughbook Modder

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    No! its a burn area of LCD. I have a couple of that LCD thats I've changed Mostly I've notice on CF-29 with 1.3ghz unit.


    ohlip
     
  8. jtsiek

    jtsiek Notebook Guru

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    Yeah, I separated the LCD from the touch panel to be sure and it is on the LCD.

    So my next question is...Is a 29E screen compatible with a 29H?
     
  9. Connor922

    Connor922 Notebook Evangelist

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    Yes I believe they are but I would try to get a screen off the newer MK4 or MK5s those (minus the touch panel) seem to be the best luck with not having spots. The MK2 (CF-29E) screes have been terrbile for burn marks for me
     
  10. Alex

    Alex Super Moderator

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    Yes all the lids /screens are interchangable
    I have problems with the touchscreen panels,mostly mk4's the screens have been fine, even on my order model mk-1's

    Alex
     
  11. mnementh

    mnementh Crusty Ol' TinkerDwagon

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    Yeah -

    This is an unfortunate side effect of the quest for ever-brighter screens; instead of the single CCFL at bottom or one at top & bottom, these guys have 4 tubes running horizontally. With the tubes at top & bottom, you can keep them away from the light diffraction panel (a big thick piece of clear plastic), so if one of the tubes develops a "hot spot" type failure (caused by mercury vapor accumulating on an arc burn), it still isn't easily visible on the screen.

    With the 4 tube arrangement, two of the tubes are right in the middle third of the diffraction panel; if one of those tubes gets a hot spot, there's no place for the heat to go except into that piece of plastic and... melty spot which looks like a thumbprint behind the LCD substrate.

    The rotten part is there's no good reason those panels couldn't be made in a modular fashion so that the light generating portion (the source of 5% of the manufacturing cost and 95% of all LCD panel failures) is separate from the LCD substrate; it's just the overweening greed of manufacturers making SURE they have product turnover and millions of pounds of poisonous waste waste annually be d@mned.

    mnem
    I am the Lorax... No, wait. I ATE the Lorax... ;)
     
  12. KLonsdale

    KLonsdale Notebook Evangelist

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    "The rotten part is there's no good reason those panels couldn't be made in a modular fashion so that the light generating portion (the source of 5% of the manufacturing cost and 95% of all LCD panel failures) is separate from the LCD substrate; it's just the overweening greed of manufacturers making SURE they have product turnover and millions of pounds of poisonous waste waste annually be d@mned."

    I could not agree more.
     
  13. Alex

    Alex Super Moderator

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    If you think that four is excessive
    The Panasonic 12" PDRC LCD Monitor has seven inverters, and seven backlites arranged horizontally to get it's 1200nit brightness :eek:

    Alex
     
  14. mnementh

    mnementh Crusty Ol' TinkerDwagon

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    Good lord... you could put a fresnel lens in front of that & use it as a PROJECTOR... like that lame-O "blueprint kit" in the back of all those comic books & Popular Science... ONLY THIS TIME IT WOULD WORK!!!

    mnem
    tHE FUTURE'S SO BRIGHT... i GOTTA WEAR SHADES...
     
  15. Alex

    Alex Super Moderator

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    Yah It was not really truth in advertising

    I liked the x-ray glasses advertisements myself

    Never bought them , thought about it quite a bit, now they could have would of been useful if they worked :eek:

    Alex