IMac :: Found Yellow Tinge Source On LED Screens
Dec 2, 2009
While me and my friends were trying to figure out possible causes of this issue on LED screens, someone came up with the brilliant idea that the problem could be caused by the sound speakers. His recently LED TV had the same problem. He found out that what was causing the yellowish tinge on his TV were the Sound Speakers. Volume speakers use magnets, so the magnetic field was screwing up the colors on his tv tending to yellow.
After having removed the Sound Speakers the yellow tinge disappeared in about 2/3 hours. I tried this on my led screen laptop with a magnet I had in the kitched, and guess what! It worked, color changed, not for yellow but it changed for sure. The Sound Speakers on new IMacs are near yellow tinge, that's why some people are getting it worse. I've reported to apple. Faulty design Quality Control. If you have his tell us if you're using internal or external speakers. This may lead us to more clues.
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Dec 31, 2009
I'm curious what your experience has been with getting a new replacement either from Apple directly or the reseller. I bought mine from MacMall a few weeks ago and it seems to have a bit of the yellowing as well as 20 or so dead/stuck pixels in the isight camera and now I'm thinking about trying for a replacement. I spoke to an Apple rep earlier today and he is working to see what he can do for me but apparently Apple sales weren't wanting to allow me to just swap for a new one through the normal channel everyone who buys their iMac directly from the Apple Store gets. The rep is going to call me back on Monday and let me know what he can do for me. MacMall will allow me to return and rebuy supposedly
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Jan 20, 2010
[URL] take the time to write to Gizmodo, a major tech blog reporting [URL] You can write to them: submissions[[URL]The more people that make the issue publicly known, the more likely Apple will come out of the dark and admit to their serious quality control
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Nov 11, 2010
Basically I am trying to convert a 2.2 GB .mov file that I shot and edited using Final Cut Prom to an MP-4 file using Handbrake. When I try to convert the file I get a message that reads. "No Valid Source Found". Why is this? I realize I can export as an MP-4 right out of Final Cut but the codecs in Final Cut aren't optimal enough to produce as high a quality video as it would be if I did a conversion using Handbrake.
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Jul 4, 2009
Alu 24" 2.4ghz when they first came out with aluminum, got it at the store. since august 07 My imac had a small yellow tint, i noticed, when i got it and it was not worth anyhting screaming about, i also noticed it had bleeding issues ath the bottom and sides. I wanted to return it or trade but i was convinced out of it.
Now i noticed that from left to right their is a prominent yellow tint streaking it's way across and fading around the half way point.It is irritating and sad to see this display on this mac was ok, at first but it is geting slightly worse.I have apple care, can i trade this/replace it at an applestore, or would they need to fix it?
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Nov 16, 2010
Cheapest I found are about $160 shipped on Newegg or Macmall? Any other recommendations?
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Dec 29, 2009
I sent an email to Steve Jobs about my yellow tint 21.5 iMac issues (three exchanges, all affected, resulting in a refund). I got a call from Dena at Executive Care within 24 hours.
She said they are aware of the problem and do not know how widespread it is. According to Dena, the issue is not resolved and that ordering a new iMac will not result in a fixed display.
She said the engineers are working on it now and they are not sure if it's hardware (most likely) or software related. Further Apple stores cannot do repairs because they haven't determined what the issue is.
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Aug 2, 2009
I currently have a 20" iMac with a second 19" widescreen DVI monitor running in portrait mode, is there anyway I can connect a 3rd monitor to extend my desktop over the 3 screens ?
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Aug 26, 2010
Seems that the more I read about refurb imacs the more I notice dust on the inside of the screen
I have two specs of dust trapped on mine, they haven't annoyed me yet but I'm considering getting suction cups and cleaning it. Would this be the best approach or sending it in?
I haven't done it and I'm slightly scared to do it
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Mar 4, 2009
I plan to use it for basic home stuff such as photos, video editing (basic), t'internet etc. I dont plan to play any games on it (i have a ps3 and a wii which do a much better jobs me thinks). The question is this: will the low end 24in imac be good enough? there seems to be a lot of negative comments round here on the graphic card. also on a not less serious note, do you find the screen too big on your desk. Is it overwhelmingly big?
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Apr 3, 2009
I have set up a second monitor to my imac using a dvi to vga cable. Now I would like to watch videos in itunes full screen on the second monitor but whenever I select them to play in full screen it makes my iMac screen go completely black.
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Apr 16, 2009
When I turn my emac on, I get a blue screen and I don't know how to get it to boot up. What do I do?
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Dec 9, 2006
I've been given (!) a G5 iMac which is practically brand new. It's only problem is that it suffers from the sudden shut off issue which seems to plague the G5 thanks to a faulty Power Supply and some caps on the mobo which get taken out by the PS. I've replace the power supply, but can't afford to get the mobo fixed, and since neither Apple nor any of the alternative operating system makers such as Linux will be supporting this system into the future, I figure that the hardware is essentially orphaned. I'd dearly like to use the screen though, as it's in great shape and is a beautiful display. So, my question is, can the internal screen be connected to an external source such as the video card of another computer? It would be great to use it for my music production machine. If anyone has any ideas, let me know. In the meantime I'm going to have a look around inside this beast and see what I can do.
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Apr 12, 2009
It seems I have to go a roundabout way in order to connect to the Internet using a USB Dial-Up modem. I thought you could double click on the Safari icon on the Dock and get connected to the Internet. But every time I try to do this, the Diagnostics page keeps cropping up. The only method I have found to get connected is thru the Network folder under System Preferences, which to me is a backhanded alternative to what should be a more direct means by clicking directly on the Safari icon. Is there something wrong with my Internet set-up causing this run around? Also, I am unclear as to whether my 20" screen is setup properly?
Is it true that in order have the sharpest screen readout/visual appearance and still cover the complete display area that everything seems actually smaller than when compared to a 17" inch display usage (which is the size of the LCD monitor I am using with a Power Mac). Finally, what is the best source to find out all about my iMac & its features? The documentation sent is very scant. Aside from the petite booklets (with same information repeated on the computer), is there any extremely pertinent guide I am overlooking that comes with the computer? Any other major sources?
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Jul 12, 2009
I dont know how long this has been going on for but ive just noticed it. ONLY when the display sleeps, the upper left hand side of my 24" imac makes light ticking noises once every few seconds (its very light ticks, theyre hard to hear unless you put your ear to the computer). It doesnt occur when the screen is on and when everything is on, and it doesnt occur when the computer sleeps, it only happens when I put the display to sleep, which seems weird. I don't think its the HDD, I've checked the SMART status and all is fine, I've also checked the console. Why is this ticking noise occurring when the display sleeps and no time else and what is making it?
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Sep 23, 2010
Now this is my first ever Mac after being dragged into the Apple world by my iPhone and iPad. I love it, everything is a joy to use and i've been surprised at how quickly I have adapted to the world of Mac.
Anyway when I got it home on the day I noticed a spec of dust under the glass. Called Best Buy but surprise, surprise they had sold out of the model I had. No biggie I thought, I will get it looked at one day.
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Nov 27, 2010
So I took the hefty plunge and purchased the 27" i5 from a local Apple Retail Store, believing that Apple would have finally resolved the yellow-tint issue from over a year ago, or at least it would appear in much less iMacs as it has sorta died down on the forums.
Anyways, opened it last night, and continued copying over files to it today, only to notice that it has a slight yellow-tint issue towards the bottom 1/3 of display.
I've already made a genius bar appointment......I even purchased Apple Care on it, so the total was around 2.5k, and I'm hoping for them to allow a swap for another brand new unit? Is this likely, or will they just simply wave me off to a repair or refurb route. After dumping so much $ on it, and even purchasing Apple Care, I wouldn't be satisfied for anything but a straight exchange to a new unit.
Also, will they allow me to open it up right there and check to see that it doesn't have any display issues as well?
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Jun 12, 2010
I have read the many many threads on the Yellow Tint issue although i am concerned about buying a 27" i5 Imac as i've been saving for a while. I'd be really disappointed if i end up with a screeen with the yellow tint issue.
What i would like advice on is the following:-
Has the reason behind the yellow tint issue been found and has it been resolved?
Would waiting for the next updated Imacs be a better option as i am not in a major hurry to buy my imac although i would prefer to buy it sooner rather than later considering the time i have been saving.
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Mar 30, 2010
How do I disable the external video source from my MacBook Pro on my iMac without disconnecting the cable? Is there a key combination on my iMac?
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Jun 2, 2009
Are there any iMacs that have High Definition screens? I've seen people selling High Defintion iMacs on eBay but is it true? Are the external Apple monitors High Definition, too?
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Mar 30, 2009
I have a 1.83 GHz Intel Core 2 Duo iMac that has developed a vertical yellow line in the display that won't go away even when restarted. It's like a 1 pixel column of dead pixels right in the middle of the screen. I think it's still under warranty. Is this something that can be fixed under the warranty?
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Jun 28, 2010
I just received my new imac 27, i7 (28-06-2010). I ran the screen test, unfortunately my screen has yellow tint issue. I have ran all updates and firmware within apple update with no luck. Going to call Apple for a replacement!
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Jan 20, 2008
This may have been posted earlier, so sorry is this is a repeat. I've had this PowerBook since the first 17" versions came out in early 2003 and it has worked wonderfully. It even came adrift on a bicycle one day (strap broke with a brand new sleeve bag) it skidded down the road and bashed into the curb... still kept working.... other than a couple of dents and a lid that never closed again quite so well, it has been a fab machine.
Anyway, a few months ago the screen started occasionally going a green/blue tinge, almost like very fine stripes down the screen. A wriggle of the screen seemed to fix it, but it has now become quite bad, and stays like that for most of the time. I figure it must be the connection to the screen from the system, as when using the laptop for presentations (connected to a projector) all is good.
So my question is, does anyone know a easy fix? I heard that the wiring is built in, and needs the screen replacing, which doesn't make sense given it's nearly 5 years old.
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Jan 1, 2010
I have not seen any posts comparing these two symptoms together, but I am wonding if both exist on the same screens, or if they are infact seperate issues. I returned a 27" iMac i7 because it had both slight yellowing and terrible backlight bleeding. I have seen multiple machines first hand (3 Core 2 Duos week 41s) at different stores (Apple and Best Buy) that had no yellowing and no backlight bleeding. I won't get into how to check for yellowing, you can read about that issue here: [URL]
But to check for backlight bleeding is both easy and impossible not to see if you have it. To check for backlight bleeding, a quick way is to bring up a site like http://www.blackle.com/ or any other black background, and check for an inconsistent white glow on the edges of your screen. I had serious backlight bleeding in the lower corners of my screen, which happens to be where the yellowing was happening. I don't know if they are related, but hopefully we can determine if there is any correlation here.
I did order a second machine, because I know Apple knows how to make a 27" iMac with a perfect screen (as advertised), since I have seen 3 of them in the wild. Hopefully they will be back to the quality that they had is their early production units very soon.
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Jan 10, 2010
I see all these complaints about i7 iMacs, does the yellow tint affect Core2Duo models? Is the tint an effect of a MB/CPU issue or a display problem?
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Feb 19, 2010
I have a week 50, i7, 2TB Imac. It has a very distinct yellow "tinge", and the Bluetooth does not work properly. Every time I reboot or start, the "Bluetooth setup assistant" starts, which I have to force quit. The wireless keyboard and mouse work fine, but I can't add either of my two bluetooth headsets. They pair, but when I try to activate them, it goes to the bluetooth settings screen, where it says that bluetooth is "off", despite the on checkbox being checked and the keyboard and mouse working. I called support and they had me do a bunch of things, the last thing being reinstalling the OS. Didn't work. So now I need to call them back. I have two problems, the yellow screen and the Bluetooth. Should I ask for a replacement? I see that a lot of people have gotten a replacement just for the yellow screen problem. I have two faults.
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Sep 12, 2010
Glass over hangs on left and is in a bit on right side on my new 27" i5. So is this normal? Also I think my screen is a little yellow bottom right.
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Sep 25, 2010
i bought the 2009 refurbed 27"er and returned it 3 times due to yellow screen problem. for the 4th replacement they decided to send me the new model.
i have the 3rd and 4th replacements sitting here side by side.the 3rd replacement, which has a yellow corner is light years better than the new one.
the new screen doesn't have yellow corners...it's a perfectly consistent yellowish brown tone.
the older one has a yellow corner, but is much more illuminated and very balanced white. the max brightness of the new one is only 3/4s of the max of the old one.i tried configuring it to no avail.
are all the new models like this?it's quite a bit snappier, but the screen is worse than the last 3 that had yellow patches? it almost seems like it was a return and it shipped from cali rather than asia?
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Feb 4, 2010
I have a 24 inch imac and i am connecting the viewsonic VG921m (19'') monitor using the mini-dvi port. The external monitor appears dull (whites have a yellow tint) Is there a way to match up the display to look like mac? I am using the monitor next to my iMac and its currently distracting as its displaying same colors in different tone.
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Feb 9, 2010
How common is this? I prefer darker backgrounds and this may be an issue.I'm over the yellow and the buzzing, but this too? Don't take me the wrong way - I love my Macs but I can't say I'm crazy about this..See attachment. Ignore the image noise, the big spot that bothers me is on the top to the right.
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