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Yellow tinge from bottom to top of the screen, 27" iMac

My 27" is showing a yellow tinge when viewing on the bottom of the screen compared to the top?
This makes color corrections on my photos impossible. Anyone else has this problem? You can easily
see it on white or grey background (even in finder windows)

iMac 27" 3.06 GHz Intel Core 2 Duo, Mac OS X (10.6.1)

Posted on Nov 1, 2009 2:29 AM

Reply
2,429 replies

Nov 2, 2009 7:18 AM in response to Mathias Buergin

Yep, the 21 inch seems to have it too.

I visited a local Mac retailer today and their demo 27" had it. Looked exactly like my iMac, even the same shape of the yellow tinted area. Sounds very much like a panel fault to me. Hopefully not all machines have it.

http://att.macrumors.com/attachment.php?attachmentid=201515&d=1257172547

I hope the link works, it is an image with two grey bars. Download it, open in Preview and compare the upper and lower grey bar. On my screen the upper one looks fine but the lower one is very yellow/warm.

I talked to another Mac retailer in my town and he confirmed that their demo 27" has it too.

I will check the next batch of machines and if they also have it I must return it and go back to my previous alu 24". 😟

/ Jacob

Nov 2, 2009 9:05 AM in response to sebamattsson

OK, I called Apple this morning and they agreed to send me a new iMac to replace the one with
the yellow tinge. In the afternoon I went to a electronic store where they also have a Mac corner.
They had 4 new iMacs there (2x 21 and 2x27) and guess what - they all have the yellow tinge, so for
me this is something really serious because every panel seems to have it and I don't know how people can not recognize it.

Nov 2, 2009 10:08 AM in response to Mathias Buergin

I have at least two more reports of 27" with the yellow tint.

Now looking for a reliable report of a uniform screen. Anyone with a 27" that see the same color temperature for the upper and lower grey bar in the image I posted above?

I would be extremely disappointed if all the iMacs have this fault. It would be terrible if it is because of heat or something else that is not fixed with a new panel...

If so, I hope Apple will make a Cinema Display 27" and I will keep my 24" ATI 4850...

/ j

Nov 3, 2009 9:47 AM in response to jajo.j

I just been to my apple reseller and demo models they have also has the yellow tinge. I also was telling them this problem and a few others that I have. He says they would look at it but because of the limitation in LCD screen technology, there is an acceptable amount that apple has before leaving the factory.

If I spent $1800 on this machine I would expect that it would have the best LCD screen available.

Nov 6, 2009 7:47 AM in response to Mathias Buergin

Some bad news for the weekend:

Just received my replacement iMac 27". This one is even worser than the previews one. Together
with the yellow tinge fading to the bottom it has also a vertical yellow strip (about 100 mm) right
from the center of the screen. It looks terrible if you have a grey background or if you drag a finder window across the desktop area.

Conclusion: These LED displays are terrible and not useable. Maybe the guys only watching HD Movies on there iMacs will not recognize it but that's not the application I want to use a Mac for.

Yellow tinge from bottom to top of the screen, 27" iMac

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