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27", 21.5" iMac Owners, test your screen for yellow tint issue here
- Thread starter tapplox
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How did you take a picture of your screen straight-on and especially in the complete dark with the shot focused? Or was it not focused? I have a Fuji point-and-shoot on autofocus and it simply won't focus on the white screen with grey bars. I have to focus on another area and then move the camera back to the center.
By the way, I called for a replacement and just came back from taking my iMac to FedEx. Hopefully this one is going to be good.. but I bet this statement has been said a million times by now... sigh.
did they make you, or try to make you, pay the restocking fee on any of those you returned due to the yellow tint issue??
What week is this computer? is it a 27'?
I had problems with my 27' iMac as well -yellow tint on all 6 (yes SIX replacements) hard drive noise in 1 of them, 2 came with whistle when lowering the luminosity , one died after some use, one with broken packaging... In the end I've got my money back. Now I am waiting for apple to improve this product and I am aware that they only offer 1 replacement now
Where did you hear they only offer 1 replacement? I was promised by two reps that i would get a satisfactory machine if the replacement coming is bad. The one coming is my first replacement.
I was refused another replacement after all these replacements. The rest is what I've read in other posts... But it could be just another rumor.
http://discussions.info.apple.com/thread.jspa?threadID=2381983&start=210&tstart=0
Very yellow, actually. This is a week 17?
I thought they were looking better. This one definitely needs to be returned.
Yes. This machine was built on May. W8017.
I'm quite curious whether someone have successfully get a perfect one.
I'm in China and bought it from Amazon.cn.
The exchange policy here is quite inconvenient for customers. Amazon only accept return items when Apple accept it and issue maintainance certificate. That means I have to let Apple check my iMac first. Today I called the center and one rep told me I'm the 1st case here! I think they are lying.
Any suggestion?
I'm quite curious whether someone have successfully get a perfect one.
I'm in China and bought it from Amazon.cn.
The exchange policy here is quite inconvenient for customers. Amazon only accept return items when Apple accept it and issue maintainance certificate. That means I have to let Apple check my iMac first. Today I called the center and one rep told me I'm the 1st case here! I think they are lying.
Any suggestion?
Just to give you an idea, the RGB readings are:
Top Band:
R 103;
G 104;
B 109;
Bottom Band:
R 101;
G 102;
B 96;
(Readings taken for the bottom left picture, at the left end of the darkest grey bands - slightly right from the border with the mid grey band)
In other words the screen misses ~13% of the Blue and only 2% of Red and Green at the bottom (compared with the top).
Tom B.
I just got a refurbished 27" and opened it today. The first thing I did after restoring from a Time Machine backup was to test for this, and honestly I'm not sure if it's there or not -- I've been so worried about it that I'm wondering if I'm seeing it only because my brain WANTS to see it.
My serial number starts with YD0036 -- does that tell anyone anything?
My serial number starts with YD0036 -- does that tell anyone anything?
Hello
Hello Guys,
I just joined this forum and this is my first post. Hello from London!
My 15" macbook pro has been with me for nearly 4 years. After various researches I decided to upgrade to a 27" iMac i7 over Mac pro, strange enough, I hadn't really paid attention to the yellow tint threads before I bought mine, instead I mainly focused on performance and screen reflection issues (and decided to live with it).
I work in 3D visualisation field and part time a keen hobbyist photographer. So I do care about the screen. After all the installations and configurations were done I started to transfer my images to the new iMac and discovered the yellow tint issue of course then realised the whole world been talking about it! its a bit too late I know, haha!
I have attached a screen shot so you guys can comment on it. The screen has been calibrated with Spyderpro2 under both win 7 and Mac 10.6.3, the picture was taken under windows 7. It might be odd, and it seems under windows 7 it's actually better.
From serial number I think its week 13 of 2010.
It's not that bad i suppose, (or it is that bad, haha) after reading loads of messages, I doubt I can surely get a replacement comes with yellow tint free. so I wonder whether I should wait till the problem is solved for certain then get it fixed with Apple care? I sort of agree with certain guys that it takes time for Apple to solve the problems for good, plus I don’t have time to keep taking this heavy machine back to central London.
I do understand for colour critical works it can be frustrating to deal with faulty screen, but since i am quite certain to work with an iMac i7 now so i look forward to solving the problem.
Comments appreciated!
Regards
GF
Hello Guys,
I just joined this forum and this is my first post. Hello from London!
My 15" macbook pro has been with me for nearly 4 years. After various researches I decided to upgrade to a 27" iMac i7 over Mac pro, strange enough, I hadn't really paid attention to the yellow tint threads before I bought mine, instead I mainly focused on performance and screen reflection issues (and decided to live with it).
I work in 3D visualisation field and part time a keen hobbyist photographer. So I do care about the screen. After all the installations and configurations were done I started to transfer my images to the new iMac and discovered the yellow tint issue of course then realised the whole world been talking about it! its a bit too late I know, haha!
I have attached a screen shot so you guys can comment on it. The screen has been calibrated with Spyderpro2 under both win 7 and Mac 10.6.3, the picture was taken under windows 7. It might be odd, and it seems under windows 7 it's actually better.
From serial number I think its week 13 of 2010.
It's not that bad i suppose, (or it is that bad, haha) after reading loads of messages, I doubt I can surely get a replacement comes with yellow tint free. so I wonder whether I should wait till the problem is solved for certain then get it fixed with Apple care? I sort of agree with certain guys that it takes time for Apple to solve the problems for good, plus I don’t have time to keep taking this heavy machine back to central London.
I do understand for colour critical works it can be frustrating to deal with faulty screen, but since i am quite certain to work with an iMac i7 now so i look forward to solving the problem.
Comments appreciated!
Regards
GF
Attachments
I've seen someone post a very good looking screen elsewhere on the forum, but forthe most part, each one seems to have some degree of yellow.
Appl reps have been lying or providing confliciting information to confuse consumers regarding the yellow tint issue.
Can you return it and wait for the refresh? I myself will wait at least that long until I can be more reasonable asured the screens have been fixed by Apple. Right now, it seems they are trying to clean out their inventory of defective screens through the refurbishment store.
Today one apple engineer came to me and checked the iMac and would give me an answer in several days. You see that I can't exchange iMacs here as freely as in Europe.
I think I will try another one and see the results. If the other one is in the same conditions, I have to keep it and wait for the next generation iMac. Though there is some yellow problem, the iMac 27 is still quite good as a whole.
Just got my week 19 imac i7 replacement this morning and it's yellower than my previous. It's so yellow in the center, top-down and the bottom just like a bell curve.
Can you post a picture?
I also ordered a 27" iMac Refurb and am getting a replacement. Not so much for the screen (which looked kind of ok to me) but for other issues. However, now I'm afraid the replacement that's coming is going to have screen issues... we'll see.
However, do the grey bar test -- Here's what I did according to a user at the Apple Discussion Forums:
Grey Bar Test:
Take a picture with your Camera of the Horizontal Grey Bars & another Picture with the Vertical Grey Bars.
Theses bars can both be found Here:
http://tapplox.com/imac-led3.html
http://tapplox.com/imac-led2.html
Copy Both Pictures from your Camera to your iMac.
Open Up your picture you took in "Preview"
With the Mouse Select the entire Left Grey Bar
Go To File, Copy,
Go To File, Paste
Now Drag the Copied Section to right next to the Right Grey Bar
Go To File, Paste
Go To File, Save As
Give the Picture a NEW Name
Do Same with Horizontal Grey Bars.
Also, I think yours is a week 3 according to the serial number
Your P&S needs some text onscreen to focus to.
Press/hold halfway on text, then with half press center on screen then fully press down. Best if you have tripod or even resting on back of a chair or something.
Ouch! You miss ~15% of blue below the center of the screen. There is an ~8% narrow green band in center at the very top and both sides are ~4% red. Did you play with the camera settings at all, or the picture is close to what you actually can see?
Tom B.
Just got my week 19 imac i7 replacement this morning and it's yellower than my previous. It's so yellow in the center, top-down and the bottom just like a bell curve.
This is SO frustrating! Reports abut yellow screen just keep coming.
I think everybody should report their problems at
http://imac.squeaked.com/results.php