lebungleski

Q: Apple Cinema Display 23" - Blank Screen, "short-long-short" LED code

Hello everyone.
This sounds like something of an epidemic... My Apple Cinema 23" HD Display (bought Dec. 2007) hasn't been turning on after a power outage hit our area last week.

The Computer and Display were OFF when the outage occurred. Everything was plugged into a surge suppressor. Everything ELSE plugged in to the suppressor is fine (including my Mac CPU)... but not the monitor.
It’s not dead-dead…. It’s a blank screen but there IS a morse-code flash on the LED (short-long-short). According to Apple Support’s LED Translation, it SHOULD be something to do with the power adaptor. The adaptor IS correct… a 90 watt… but just in case I bought ANOTHER 90w adaptor brick. I plugged the monitor to the new brick. THE RESULT WAS THE SAME.

I’ve tried power cycling, I’ve tried plugging it into different outlets, I’ve tried connecting to other computers. The same LED result remains.

And, yes, of course, I’ve got no Apple Support, and from what I read in similar posts, outside-the-warranty repairs could hit around $400. I REFUSE!

For now I have a Samsung monitor from Costco. It’s not bad, but it’s not the Apple monitor with its awesome color-fidelity.

I've read some other posts with the same problem (LED blink code and all) elsewhere but haven't got a solid answer.
I wonder… has anyone else incurring this same problem (with the same LED flashing deal) tried to use a 150-WATT adaptor brick? I would try this myself, but I’m currently financially unable (and personally unwilling) to throw more cash at this problem unless I know it’ll fix it.

Mac OS X (10.5.7)

Posted on Jul 18, 2009 7:03 PM

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Q: Apple Cinema Display 23" - Blank Screen, "short-long-short" LED code

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  • by ApMaX,

    ApMaX ApMaX Apr 27, 2014 1:32 PM in response to lebungleski
    Level 1 (17 points)
    Mac OS X
    Apr 27, 2014 1:32 PM in response to lebungleski

    Two Cinema Display 20-inch widescreen fixed with the tape trick. Amazing!

  • by butchseaman,

    butchseaman butchseaman May 22, 2014 7:19 AM in response to lebungleski
    Level 1 (0 points)
    May 22, 2014 7:19 AM in response to lebungleski

    The paper trick did work ... thanks for your help.   FIX THIS APPLE!

  • by Drew Reece,

    Drew Reece Drew Reece May 22, 2014 7:35 AM in response to butchseaman
    Level 5 (7,485 points)
    Notebooks
    May 22, 2014 7:35 AM in response to butchseaman

    butchseaman wrote:

     

    The paper trick did work ... thanks for your help.   FIX THIS APPLE!

    How exactly can Apple fix this?

     

    This isn't controlled by software (it's a hardware feature - hence the hardware hack) & these displays are how old now?! How many customers should Apple contact on the off chance this 'hack' is being used?

     

    If you want action from Apple contact them via an Apple store or Apple Care, you can't assume they read these forums.

     

    Don't you think if this was a massive problem there would have been legal cases already?

  • by nolenkw,

    nolenkw nolenkw Jul 29, 2014 5:50 PM in response to lebungleski
    Level 1 (0 points)
    Jul 29, 2014 5:50 PM in response to lebungleski

    Alright, just bought a used monitor from eBay a couple of months ago and all worked find until yesterday.  No power outage and nothing I could pin it on, but I now have the blinking "short-long-short" and a black screen.  This is my number two monitor and the other (same 20" originally purchased in 2008) is still working fine.  Tried swapping out everything possible, as well as turning all the power off for a hour, but no luck.  I did the tape trick and the display came back to life, but it has a few side effects - Mouse will not activate that display (top menu bar is stays grey) by clicking on the Desktop but I can click on the menu bar, can not drag Files from the good monitor Desktop to the bad, can not right click on the bad Desktop but can on the good, etc. After re-booting, thinks appear back to normal.  So Far, so Good.

  • by nregier,

    nregier nregier Aug 16, 2014 7:47 PM in response to nplmdthfan
    Level 1 (5 points)
    Aug 16, 2014 7:47 PM in response to nplmdthfan

    jakobeon thanks for writing the fix.  I have a 20" CD and used your information resolve the issue.  Back and running now!!!!


    All the best,

    Nick

  • by chiechiwara,

    chiechiwara chiechiwara Oct 27, 2014 11:44 AM in response to matimac
    Level 1 (0 points)
    Oct 27, 2014 11:44 AM in response to matimac

    Thanks so much for the video matimac! I had a bit of trouble understanding jakobeon's suggestion but the video helped and I fixed the problem! I couldn't find a plastic so just used a paper and worked

  • by Miawnus,

    Miawnus Miawnus Jul 16, 2015 3:22 AM in response to lebungleski
    Level 1 (0 points)
    Jul 16, 2015 3:22 AM in response to lebungleski

    20" display here..

     

    my screen is blinking short-long-short and i looked at the Apple page and it told me to get a new power-adapter.. so i bought one.. and it didn't work.. **** you Apple..

  • by thekingpens,

    thekingpens thekingpens Jun 20, 2016 6:56 AM in response to lebungleski
    Level 1 (4 points)
    Jun 20, 2016 6:56 AM in response to lebungleski

    I found a $1.00 fix.  Scotch tape x flashlight from your iPhone.  https://www.youtube.com/watch?v=aH5xgo1u3Ks

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