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Greyish Smudge marks behind the glass screen.

I have a 21.5 iMac bought in November 2009.

There appears to be numerous greyish smudge marks behind the glass screen on the top left hand corner.

It was not apparent to me at first, but after I started using OMMWriter it became easily visible. I also tried placing a neutral white background like TextEdit and it was easily visible even then.

I have cleaned the screen on numerous occasions and it has not had any effect.

What should I do?

These spots are quite disturbing.

iMac 21.5, November 2009, Mac OS X (10.6.2)

Posted on Jan 15, 2010 10:55 AM

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Question marked as Top-ranking reply

Posted on Jan 15, 2010 2:06 PM

Hello swapnonil

Welcome to Apple Discussions

Call Apple Support at: (91) 1800 4250 744 or (91) 80-4140-9000

http://www.apple.com/support/contact/phone_contacts.html

Dennis
1,291 replies

May 4, 2011 6:41 AM in response to swapnonil

I have already posted on this thread explaing my same issues with this wide spread screen problem... Anyway I had my second lcd replacement in January this year although I had to fight for it and have a customer relations officer make an exception to have it replaced under warranty (extended apple care).


Two months later I noticed it happening again, rang apple care, sent photos and they asked for the computer to be taken to a service provider. I took the imac to the local service provider and the apple technical support team (not my local service provider) claimed the problem to be caused by the imac being kept on for exended amounts of time OR put into sleep mode thus attracting dust particles to the screen which has caused the contamintaion... What a load of crap! There is nothing warning of this in the manaul, infact the manual says to put the computer to sleep if its not going to be used for a few days!


The customer relation officer is looking into the case and is supposed to be calling tomorrow... Im not confident of them resolving this problem but I am not taking anything less than a replacement screen. In which case I will sell this imac and never buy one again! I have multiple apple computers and mobile devices and could imagine switcing to an PC so will probably just buy a Macbook Pro and external display.


Do not recommend buying an iMac to anyone!!!! There is a design fault that is causing this problem.


Goodluck to anyone else having the same problems!


BTW - I am dealing with Apple Asia...

May 5, 2011 1:49 AM in response to swapnonil

London here. 27" iMac purchased February 2010. Nothing but issues. The first was a buzzing sound whenever the screen was dimmed, coming from the user's upper left hand side of the screen. This issue was "resolved" but one week after repair it has returned.


The grey smudge marks were not bothering me too much and indeed I thought I was imagining it at first as it wasnt too clear. It has since become progressively worse.


I have applecare, but its a total nightmare to haul a 27" imac in to oxford circus in central london to have someone repair it. Really trying to put this off as long as possible, but when you pay nearly £2,000 for a machine, you expect it to work.

May 5, 2011 4:02 AM in response to Nirus_project

Goodness! From reading this thread I feel really sad for everyone.


I got my new 24" iMac in 2009 just a few days later Apple released the ALL NEW IMAC 27". My iMac had never been out of the boxyet they would not swap it for me but gave me £50 credit.


I ordered a 27" iMac and it arrived but has been NOTHING but trouble since. Yellow screen, dust inside, failed hard drive, failed DVD drive, battery life on the keyboard of a couple of days. buzzing sound, heat problems, smudges on the inside of the glass, ruined DVD and CD collection because of the scratches from the part they call the SUPERDRIVE!


What have Apple done? NOTHING! I live on Orkney in the UK and to take it to an Apple retailer would involve a ferry ride of 13 hours a drive of 30 miles and a couple of days each time in lost work.


What have I done? I got the suction cups off of Amazon and the screw drivers too. Taken it apart and replaced the hard drive, taken out the broken Superdrive, cut ALL the sensor cables (after having it apart so many times the monitor one just snapped off by itself. I've now taken out the big fans, one for the processor and one for the Superdrive and cut the cables to the one for the hard disk fan. I've installed two SSD drives an use a £25 Samsung external drive. Which is fine for Windows but the iMac software doesn't 'support' the drive! So I've lost two thirds of my iMac software which uses the Superdrive.


My screen flickers as it's always done. It's Yellow and it's hot enough to fry an egg on as is the case itself. One day it will blow up I sure of that but, in a way, I'll be happy when it does.


So many people are Apple mad and have to have everything Apple and I just don't understand. They take a few componants and put them together and make a computer that people go crazy over. Windows has to work with millions of different componants and, if it fails, people moan.


OSX is a nice operating system but it's so tied in with the bad computers it doesn't deserve.


The new iMac was released yesterday and, as I'm now an expert on totally taking an iMac to part I have already considered buying a new model but for today have decided againt it. Two years of **** in which my iMac has produced nothing for me except pain, suffering and money has taught me to think before I jump on the next all new, singing, dancing, model.


I have talked to lots and lots of people and put them off buying an iMac. No talk is needed if they see mine anyway. The whole thing is a total disgrace and a con trick.


I didn't just have a bad iMac, search the internet and see how many people have had the same problems and more.


I don't know about Apple Care. All I do know is Apple just don't care.


The word Apple has taken out (****) was H.E.L.L. What's wrong with that word? It's not a dirty or swear word is it?

May 6, 2011 1:26 AM in response to swapnonil

DC here and I ,too have this grayish smudges on the top left of my screen. iMac 21.5 in intel core 2 duo. 1TB.

I thought my screen was too bright or something that it had burned or heated something inside and behind the glass screen. Couldn't clean it off w/ what has been suggested by a couple of apple store associates.


The graphics/display chipset model# I have seems to be part of an issue as noted on Cnet, macrumors forums and techcrunch's websites.

I found out as I dug around the net this week since I've been home working.

And now I've noticed it about a week ago. Been working away from home for the last two months so this machine hasn't been used much except from coming back from locations , checking email via browser (not using mail) and watching netflix on and off.


I received this as a xmas present and dedicated this for Photoshop work and editing images.

I just recently upgraded to firefox 4 as my browser ( hardly use safari )and have used personas.


Now I seem to have some issue horizontally on the quarter part bottom

of my screen.

When I am viewing a page, site or document there's this little horizontal hairline blur.

This happens when I am scrolling up and down the pages or window.


Anyone else have this issue other than the grayish smudges?


I have other notebooks(3) and desktops (3) ..all macs that are for certain chores.

Mind you, I use this machine for editing and retouches. So it is obvious and bothersome to me.


Apple folks I mean apple worker bees and techies....HELP....pls.


And pls. at least TRY to get things right on your 1st gen machines.

I've already become your cult following puppet and I know i speak for myself, I don't care, just pls. address these issues and do the right thing. It's when there are more than a big lot of us that have issues also that shows, we can't always be the guinea pig testers.


Pls. give me a suggestion or any decent advise.

A hardly used nor abused mac shouldn't be doing this.


Even my g4 tiBook is still going strong despite its dent and being in bondage due to a little 2 ft. slip & fall on a wooden floor.


Thanks for the airtime.

May 6, 2011 1:50 AM in response to den.thed

hi den.thed


In response to your threads onthis issue here and

this

https://discussions.apple.com/thread/2386907?answerId=11313975022#11313975022


It can be frustrating and really not THAT SIMPLE to just do.


Would apple now have to charge me to get some sort of cleaning for the 2nd link I posted that you've suggested on this link here that I posted?


This imac I have even has a cover. When not in use for at least a week, it's shut down and not asleep.


This issues are popping up later on machines that are ( others I've read ) being used and not abused.


Any thoughts or advise?

It would obviously be appreciated.

May 6, 2011 3:14 AM in response to ElleyElle

iMac 27", 2009 manufacture year, display was replaced under warranty at Helsinki (Finland) Tector authorized servies, due to greyish smudges developing inside the LCD assembly.

now the replacement display has another widespread defect - yellow tint in the lower part of the screen area. So see you in the Yellow Tint discussion thread. What happenned to quality monitoring at Apple?

May 6, 2011 4:50 AM in response to ElleyElle

I honestly can not for the life of me understand why everyone keeps taking about smudges, dust, yellow tints and everything else to do with the 27" iMac. These problems have been around since it was introduced in 2009.


If it's under warranty then Apple might do something. If it's out of warranty then either pay up or do it yourself would be my advice.


Mine has been taken apart so many times the heat sensor cable broke. I've cut all the heat sensors off, taken out ALL the fans, replaced the failed hard drive with an SSD. Taken out the failed Superdrive and put in a SSD. I've totally taken it apart so may times and repaired it myself. It works fine even though I could fry an egg on it.


I'll be buying the new model soon and expect to have to do things to it. Those of you in America or who get educational discounts are laughing most of the time at folk who live outside America as your machines are USUALLY - NOT ALWAYS THOUGH- CHEAPER than in the UK and elsewhere. Especially me, because I live on a tiny Island in the UK and can't possibly get to an Apple store.


A second hand piece of glass (the screen) costs £150 and a second hand monitor £600. Why not buy one of those or throw the iMac away and buy another? May be try to clean the marks yourself? The assembly of an iMac is so very simple. The glass is only held on by a few small magnets and you DON'T need suction cups to get it off. Get your finger nail and gently insert it between the glass and case above the cam. Prise it a little and it will come away so easy.


I've seen postings that ask if they could send the iMac back because they care see a tiny hair inside. Wouldn't it be simpler to take the sceen glass off and clean it? Dust will get any where. The smudges will come off the glass if you want them to. As for the yellow tint... That's always been there since day one.


The monitors are made (mine is anyway) by LG.


Apple sold you a computer and do a good job on the whole on everything they do. You seem to think they sold you a baby and then want them to rear it for you?


Apple do make very average computers at above normal costs. The Parts and Service is where most of the money goes too. One third of the cost must surely be paid just because it says 'APPLE' on the box. I.E. You're paying for the name more than the machine. But you can honestly do it yourself. After all no one from Apple MADE you buy the machine. I hope you got it because you liked it and wanted it? If that's the case why not look after your baby yourself and stop ranting about Apple?


If you'd have had the iMac I received you would have certainly had something to moan about I can tell you that for nothing! But she's my baby and I love her! That's how a real parent should be. Loving no matter what's wrong with the child. 😉

May 6, 2011 7:09 AM in response to mike_orkney

Mike, the reason I put the post was to make other people, and hopefully, Apple, know, that there are serious issues with iMacs screens (mine was manufactured by LG).

If you read the thread attentively, you will understand that the grey matter is not on the cover glass, but INSIDE of the LSD assembly, which is not easily disassembled/cleaned by the user.

I certainly enjoy apple products, even though I wouldn't go as far as say that I have parental feelings.. =)

However I expect the 2000+ euro machine to work as it's advertised, I expect Apple not to ship faulty displays to users in 2011 when the mass defect was discovered in 2009!!!

May 6, 2011 7:32 AM in response to mike_orkney

What's the matter with you? You said "I have talked to lots and lots of people and put them off buying an iMac." And now you say "I'll be buying the new model soon and expect to have to do things to it." When you buy a Mac you shouldn't have to do anything with it. And not everyone is tech savvy or mechanically inclined as you are and they shouldn't have to be. Apple sold me (and many others) a defective product and they're going to fix it.

May 6, 2011 7:53 AM in response to bhankins

I already have the two higher capicity SSD's for my (yet to be ordered) iMac along with the caddies and tools.


I know nothing of computers. I just try not to waste folks time.


You will get your iMac fixed by Apple if it's under warranty no doubt but something else will happen and you can't keep running back to them.


Loads and loads of people tried to get defective screens fixed in 2009 and ever since and even more have said Apple sold them a defective product including me. Trouble of it is Apple don't really care what you or I say.


Best wishes for the future.

May 6, 2011 8:04 AM in response to shura.sena

I never meant to offend you if you're from Finland! 🙂


I do know what you are talking about as I have it myself. Mind you I also got many more problems than you too. The Superdrives always go first and I now have a ruined DVD and CD collection. Why they don't do away with the slot loading drive I'll never know.


The screens have had the problems of yellowing, dust in behind the LED screen itself etc. since 2009 and nothing has or will be done I think.


I have the same model as you and am going to buy the latest model too.


Lots of good wishes from Orkney to Finland and to you especially. It's nice to talk to a Finnish lady! 😉

Greyish Smudge marks behind the glass screen.

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