Late 2013 27" iMac, yellow screen issues :(

forceroyale

macrumors newbie
Original poster
Oct 9, 2013
14
0
Just wondered if anyone else has had any problems with the new iMacs having the yellow screen problem?

I've just had a replacement 27" delivered which has the same problem as the first - the lower half of the screen has a yellowish tinge which is extremely noticeable. Apple happily replaced the first one, I'm not looking forward to returning another one.

Is it worth trying for a third or should I just get a refund and see what happens with the Macbooks at the end of the month?
 

gCloud

macrumors 6502a
Mar 9, 2012
703
22
United Federation of Planets
Just wondered if anyone else has had any problems with the new iMacs having the yellow screen problem?

I've just had a replacement 27" delivered which has the same problem as the first - the lower half of the screen has a yellowish tinge which is extremely noticeable. Apple happily replaced the first one, I'm not looking forward to returning another one.

Is it worth trying for a third or should I just get a refund and see what happens with the Macbooks at the end of the month?
I'd try one more time.

3rd time lucky as they say :)
 

ioannis2005gr

macrumors 6502
Aug 10, 2013
495
0
Europe
I'd try one more time.

3rd time lucky as they say :)
This belongs to the well-known 27'' iMac LG monitor list of problems....nothing new...

Answer to this problem? better Quality Control.

I avoid buying 27'' iMac because of these issues...even if you have got a three-year warranty plan, replacing iMac till you get a good one is not a "happy game"!
 

gCloud

macrumors 6502a
Mar 9, 2012
703
22
United Federation of Planets
This belongs to the well-known 27'' iMac LG monitor list of problems....nothing new...

Answer to this problem? better Quality Control.

I avoid buying 27'' iMac because of these issues...even if you have got a three-year warranty plan, replacing iMac till you get a good one is not a "happy game"!
I have last years 27" no yellowing no bleed first time lucky there. I must admit that in the last few years buying apple products has been a lottery, you count yourself luck when you get a good one.
 

ioannis2005gr

macrumors 6502
Aug 10, 2013
495
0
Europe
I have last years 27" no yellowing no bleed first time lucky there. I must admit that in the last few years buying apple products has been a lottery, you count yourself luck when you get a good one.

Your statement is a proof of evidence!

Several iMac customers believe: "there is an acceptable level of risk when you buy an 27'' iMac"...That means, there is a "low risk level" to buy an 27'' iMac with LG monitor...

Do you enjoy to replace "under warranty" iMacs till you get a good one?

I am wondering....


Read this link:

https://forums.macrumors.com/threads/1509571/


there are many others...
 

MikeChicago

macrumors member
Sep 30, 2013
84
0
That's 3/3 with yellow screens. I'm done.
Ok, something is wrong here. I cannot believe you would have 3 out of 3 iMacs with yellow screen. Could there be another reason why you're seeing a yellow screen? Maybe external lighting or something?

I looked at the screen I have and the shade changes slightly depending on the viewing angle. I wouldn't call it yellow though... more like, off white. I think it's pretty normal. Could you post a screen shot?
 

bacan1

macrumors member
Apr 22, 2010
48
0
Toronto, Canada
Just returned my BTO and am awaiting a replacement. The bottom 1/3 had a yellow tint, especially in the bottom left corner. I could calibrate to correct a screen that is uniformly off-white, but the change in tint in the screen was driving me nuts and was clearly evident in real use with anything having a white background.
 

2Turbo

macrumors 6502
Feb 18, 2011
360
0
Just returned my BTO and am awaiting a replacement. The bottom 1/3 had a yellow tint, especially in the bottom left corner. I could calibrate to correct a screen that is uniformly off-white, but the change in tint in the screen was driving me nuts and was clearly evident in real use with anything having a white background.
I wonder if the OP entire screen or just part of it was yellow? Because as you say you can calibrate it to help but if only part of it is off, something major is wrong.
 

yjchua95

macrumors 604
Apr 23, 2011
6,725
231
GVA, KUL, MEL (current), ZQN
So far my 27" BTO (3.5GHz i7, 32GB RAM, 512GB SSD and 4GB GTX780), no screen issues so far. I might be one of the luckier ones. Still, it was assembled in China (because I'm based in Malaysia).
 

alksion

macrumors 68000
Sep 10, 2010
1,708
111
Orange County CA
My 2009 27 had slightly off colors on the sides when looked at behind a bright white background, but never got worse and only could be noticed against bright whites.

I just figured it was a part of the screen.

Just ordered a new iMac. Hope all is good!
 

thekev

macrumors 604
Aug 5, 2010
6,800
2,167
That's 3/3 with yellow screens. I'm done.
Oh man. I know I've stated with the notebooks specifically that some of the newer ones are warmer than the older models, but that shouldn't be the case with imacs, especially not every damn refresh. The uniformity issues are worse, and I'm not sure why they haven't devised some workaround by this point. Someone on here mentioned the issue of adhesives setting. If that is the case, it should be handled at the factory. Imacs are one area where I'm not sure what to suggest to people.
 

MikeChicago

macrumors member
Sep 30, 2013
84
0
So far my 27" BTO (3.5GHz i7, 32GB RAM, 512GB SSD and 4GB GTX780), no screen issues so far. I might be one of the luckier ones. Still, it was assembled in China (because I'm based in Malaysia).
Interesting. It would be good to know if the point of assembly shows any correlation with the problem. It would rule out manufacturing process as the source of the problem. I'm willing to bet it's the panel itself, not the assembly.

I cannot believe this is actually happening and I've already obsessively checked every inch of the screen I have. I'm one of the lucky ones, too. This is a real bummer and I'm sorry for all who are having this problem.

Is there a way to tell which screen manufacturer build your display?
 

yjchua95

macrumors 604
Apr 23, 2011
6,725
231
GVA, KUL, MEL (current), ZQN
Interesting. It would be good to know if the point of assembly shows any correlation with the problem. It would rule out manufacturing process as the source of the problem. I'm willing to bet it's the panel itself, not the assembly.

I cannot believe this is actually happening and I've already obsessively checked every inch of the screen I have. I'm one of the lucky ones, too. This is a real bummer and I'm sorry for all who are having this problem.

Is there a way to tell which screen manufacturer build your display?
Through terminal, yes.
Command:
ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6
 

ioannis2005gr

macrumors 6502
Aug 10, 2013
495
0
Europe
Interesting. It would be good to know if the point of assembly shows any correlation with the problem. It would rule out manufacturing process as the source of the problem. I'm willing to bet it's the panel itself, not the assembly.

I cannot believe this is actually happening and I've already obsessively checked every inch of the screen I have. I'm one of the lucky ones, too. This is a real bummer and I'm sorry for all who are having this problem.

Is there a way to tell which screen manufacturer build your display?
There are many other threads about these issues!
27'' iMac (2012-2013 models) seems to suffer from monitor problems such as IR, ghosting, yellowish, light bleeding etc....this monitor is LG IPS. IPS technology isn't perfect but some customers with older iMac monitors noted that SAMSUNG IPS monitors are more reliable than those manufactured by LG. Besides, as written in another thread, many of these monitor problems occur due to poor quality control in China. APPLE should be more careful and inspect their facilities in China to check if they meet the higher possible standards. I don't like to get a defective product and then, to start replacing it multiple times till I find a "good" one....poor quality process is not a "funny game" for APPLE customers!
 

MikeChicago

macrumors member
Sep 30, 2013
84
0
There are many other threads about these issues!
27'' iMac (2012-2013 models) seems to suffer from monitor problems such as IR, ghosting, yellowish, light bleeding etc....this monitor is LG IPS. IPS technology isn't perfect but some customers with older iMac monitors noted that SAMSUNG IPS monitors are more reliable than those manufactured by LG. Besides, as written in another thread, many of these monitor problems occur due to poor quality control in China. APPLE should be more careful and inspect their facilities in China to check if they meet the higher possible standards. I don't like to get a defective product and then, to start replacing it multiple times till I find a "good" one....poor quality process is not a "funny game" for APPLE customers!
Yeah, I've been reading those comments now. I had no idea the issue was so prevalent. It really seems insane that Apple would allow this problem to continue!

Nevermind, yjchua95 was very helpful in identifying a way to check the manufacturer! Thank you!
 

forceroyale

macrumors newbie
Original poster
Oct 9, 2013
14
0
Ok, something is wrong here. I cannot believe you would have 3 out of 3 iMacs with yellow screen. Could there be another reason why you're seeing a yellow screen? Maybe external lighting or something?
So that's what I thought, this time I've tried it in three rooms, I took photos of the screen, blurred them in photoshop and upped the levels and it's warmer (https://www.dropbox.com/s/1d92ph7n8009z26/IMG_3040.JPG), I also used an iOS colour meter app and it was consistently about ten points lower on blue levels at the bottom than it was at the top (https://www.dropbox.com/s/22yv8bz9ddokr9a/colormeter.jpg).


What topped it was my wife walked in the door and spotted it immediately, before I'd told her.

I spoke with apple support and they are putting it down to a run of bad luck, the guy I spoke to said he's heard or it happening twice but never three times, they're sending out iMac #4 today, as this is still the best machine for my needs, if it happens a fourth time I'm going to wait until next year, maybe buy an SSD for my MBP to tide me over.
 

bacan1

macrumors member
Apr 22, 2010
48
0
Toronto, Canada
My second replacement now has the exact same issue -- yellower on the bottom third of the screen. I just can't deal with a screen that isn't at all uniform in colour. It just looks weird and it will make photo editing really difficult.

Not sure where I go from here. I might just wait for a bit for the Mac Mini to be updated and then get a non-Apple display to go with it, or settle for a 21.5" iMac. I'm leaning towards the first option because I have just lost confidence in Apple's screens.
 

Maomaomao

macrumors newbie
Oct 28, 2013
21
0
This is so frightening. I am waiting for my iMac to arrive and I've had enough troubles saving for it, ordering it that having to replace it would be a disaster!

Paying so much for a machine that has faulty screens....
 

IA64

macrumors 6502
Nov 8, 2013
419
0
Please tell me this is not true ? I am waiting for my new iMac 27" to replace my old late 2009 one. I already had nightmares with the screen and got it replaced 3 times; first time yellow tint, 2nd time gray smudges, 3rd time also gray smudges and shadows after 4 months of the last replacement and it all came back.

I decided to give the new iMac a try and looking at the new design, I thought they re-engineered it due the tons of screen replacement they had to deal with previously! Check Apple forums, every thread is like 150+ page.

Now seriously, if this happens with the new iMacs I'm gonna return it back for a full refund and this is going to be my last Apple device. I already spent $3780 on this machine so far and I'm not printing money.
 

theSeb

macrumors 604
Aug 10, 2010
6,963
91
Poole, England
You guys need to understand the laws of averages and the paranoia coupled with irrational OCD of Macrumors users. Don't be scared. Wait for your iMac and enjoy using it. You have around a 95% chance of not having issues. 70% of statistics are made up on the spot and 80% of all people know that. More seriously, being afraid of what you read on forums like these and taking the small sample set as an indication of anything is not going to get you anywhere in life.
 

phphoto

macrumors member
Jun 27, 2013
37
0
I have the same problem as forceroyale and even used the same colour meter to get similar results. My guess this is quite common, just that some notice it more than others but I'll live with it as it's not that bad and I can't be bothered with the hassle of replacing it and probably getting one with the same or other issues. Nothing is perfect especially with these screens. My 30" ACD had even worse colour variations.
 

forceroyale

macrumors newbie
Original poster
Oct 9, 2013
14
0
So iMac #4 arrived and it has the same problem, out of the box the screen had been calibrated a lot warmer than the others so I thought maybe that was making it worse, but alas now it's calibrated it's quite obvious.

Interestingly this screen has a problem I haven't seen before, as well as being warmer the backlight is a lot brighter at the top than the bottom - the whites are dull in comparison, not just yellower.

So is this a run of bad luck? Probably not, I'm beginning to believe the new iMacs are just like this, I'm a designer so I tend to notice it as it would effect the ability to do my job, whereas others would either not notice or choose to overlook it.

I'm open to suggestions as to what to do with my money now...

Here's a photo in case you don't believe me, those two safari windows are showing the same website footer
 

Attachments

Register on MacRumors! This sidebar will go away, and you'll see fewer ads.