1 77 78 79 80 81 Previous Next 1,364 Replies Latest reply: Oct 29, 2005 2:18 PM by Anders Thid Go to original post
  • 1,170. RE: Uneven illumination
    Arthur Matiossian Level 1 Level 1 (145 points)
    apple should definitly take care of all the LCD's that are defective.
  • 1,171. RE: Uneven illumination
    HJR Level 1 Level 1 (35 points)
    The problem has come back! I got the illumination problem again. Phoning Apple at the moment. They even say the repair would take 3 to 4 weeks!!!

    But still I have to send it in.
  • 1,172. RE: Uneven illumination
    Kurt Gumushel Level 1 Level 1 (0 points)
    I really enjoy my power book but am sorry to say that I have a number of white spots appearing on my screen, and these spots seem to be growing. Its annoying to say the least, especially since I've been praising my power book to anyone who would listen after so many years with the other guys... Is there anything to be done short of sending it back for repairs?

    Thanks,
    Kurt
  • 1,173. RE: Uneven illumination
    EddieC Level 5 Level 5 (7,355 points)
    Kurt

    Welcome to the Discussions forums.

    Whilst the white spots issue is different to the uneven illumination problem discussed on this thread, it is recognised by Apple as a known problem. Therefore it is advisable for you to send it in for a warranty repair.
  • 1,174. RE: Uneven illumination
    HJR Level 1 Level 1 (35 points)
    After sending it back in July and got it back in the beginning of August I have the uneveness back and it seems worse than it was before.... I received the box today and will probably send it back tomorrow.... Very disappointed about the quality of the screen and I think the next time it will not be repaired for good.... Hope it will be...
  • 1,175. RE: Uneven illumination
    BW Lee Level 4 Level 4 (2,560 points)
    I too have just sent mine in a second time for this problem and am feeling a little worried that they can fix it for good. can anyone tell me what the parameters are for asking for a replacement? is it three repair attempts?
  • 1,176. RE: Uneven illumination
    EddieC Level 5 Level 5 (7,355 points)
    can anyone tell me what the parameters are for asking for a replacement? is it three repair attempts?


    Although Apple appears to treat it on a case-by-case basis, usually it's three major component failures (ie. LCD, MLB, etc) within a year.
  • 1,177. RE: Uneven illumination
    Andrew Harris1 Level 1 Level 1 (90 points)
    Could you post a picture. I want to be sure it's the same thing.

    To see other users with uneven illumination...

    http://pixelpusher.ca/powerbook/
  • 1,178. RE: Uneven illumination
    Michael Meckler Level 1 Level 1 (0 points)
    Yet another uneven illumination sufferer. I bought a refurbished PowerBook from the Apple Store last month, and it's definitely suffering from this problem. But, reading through this thread and seeing the number of people who've sent their laptop in for repair, only to have the problem come back, I think I'll just put up with it. If I crank the brightness up to max and leave it there for a while, the illumination usually evens out, and I can turn it back down and it looks ok.
  • 1,179. RE: Uneven illumination
    BW Lee Level 4 Level 4 (2,560 points)
    just got mine back from a second repair attempt to fix this.

    last time they replaced the lcd. this time they replaced the inverter board. everything looks good so far. hope it stays that way.
  • 1,180. RE: Uneven illumination
    Edmund Fung Level 1 Level 1 (145 points)
    Hmm

    Seems that this thread is finally getting quiet now.
    It's been around for half a year and finally things are cooling down.

    But frankly, I still wonder if Apple really did find out what is the cause of the problem and got to find a real fix for it.
  • 1,181. RE: Uneven illumination
    Flexo Design Level 1 Level 1 (35 points)
    Just received my Rev A back today after the third LCD replacement.

    It was lodged for service primarily due to uneven illumination that was eventually compounded by a large number of pixel defects.

    In all, it has been in Apple's hands six times since purchase in March 2004.
    3 LCD replacements, plus 3 non repairs, 'within spec' assessments.

    Right now, after just a few hours usage after being returned it has no sign of uneven illumination. It does have one 'stuck on' red pixel defect that was obvious on first power up, but that's a non-issue if the uneven illumination stays away.

    The illumination difference from this to all previous displays is like chalk to cheese. It's absolutely brilliant, beautifully even, and the settings only halfway up the scale.

    I believe the hardest part in all these incidents has been for the asessors to actually be able to view the 'uneven illumination' and 'pixel defects'.

    One of the reasons I found for this was the differences in ambient lighting between my normal usage environment and their office asessment area lighting.

    I was able to witness how their normal office fluorescent lighting minimised the uneven illumination, but totally masked the pixel defects as bright spots on black backgrounds when viewing under fluoro. Only becoming visible when moving to a darkened area away from full lighting.

    While photos of the display problems assist, measurements of the area and position, and descriptions or measurements of the lighting used in the normal viewing area may also help when they are asessing for repair.

    Above all, persistence, and patience if you can, hard as that is.
    Cheers.
  • 1,182. RE: Uneven illumination
    EddieC Level 5 Level 5 (7,355 points)
    Good to see you've got a decent screen now. I hope it stays that way.

    My own AlBook, touch wood, has been perfect since its second repair (though the wireless range is abysmal).
  • 1,183. RE: Uneven illumination
    tDream Level 2 Level 2 (315 points)
    I have recently sent my PB in and when I did I left the background on the solid light grey one (one of the solids colours out of the solid colours folder) to give the white blobs there full glory.

    I definitly advise anyone else who sends there PB in to do the same because leaving your fave background or even worse the apple default masks the uneven illumination and white blobs a lot making it hard for techies to diagnose.
  • 1,184. RE: Uneven illumination
    BW Lee Level 4 Level 4 (2,560 points)
    I sent mine in with the solid white background for the same reason and had them repair it immediately both times i've sent it in. so i totally agree with the recommendation.
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