Question about Apple Cinema Display 23" HD Monitor
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
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 it’s awesome color-fidelity.
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.
If enough people have the same problem, what does it take for Apple to take notice and issue a recall?
Hello, I had the "short long short" blinking led problem with my 23" ACD after a power outage which left my screen blank and my cheek wet with a tear for my baby. I read somewhere that a guy was getting a 1 volt reading on the middle pin of his damaged 90 watt power block. I figured maybe the display might work if I could somehow block the middle pin. So I cut a small strip of paper wide enough to block just the middle pin and long enough to cover both sides, folded it to look like a "W" from the side. I then carefully pressed it into the brick receptacle with a toothpick leaving just a little slack so it would not tear when I pushed in the small white plug. It was a bit of a tight fit but guess what. IT WORKED! I am now enjoying my beloved monitor anew and saved $$$ on replacement brick or repair. If you want to try it and you feel you’ve nothing to lose, make sure you cover just the middle pin (both sides) and you may have to try a couple of times. It worked for me. I hope you have good luck too. Regards, Moozler
edit December 2016. Still working after 7 years.
***CAVEAT AND WARNING***
Use this fix at your own risk.
A faulty voltage regulator is probably the cause of failure. Voltage regulators can start a fire if too much voltage is applied.
Bud Martin's post below describes the electronic component failure that causes this problem. Thank you Bud.
Posted on Oct 27, 2009
Hi guys, I just whantet to writte because YOU MADE MY DAY... the pice of paper on the pin (in my case, I used a pice of tape) Worked really good, I was all disapoinetd because my screen did't whant to work but, that solution made my day, It works and REALLY GOOD.
Posted on Jun 13, 2010
I just signed up so I could say: "Moozler's middle prong solution worked for me". I was about to buy a $130 power adapter when I found this page but now my 23 inch Cinema Display is working again. Hopefully this solution is permanent.
Posted on Jun 12, 2010
Props to Moozler on this one. After buying a new power brick, then replacing the inverter board inside the display, my 20" Apple Cinema Display was still dead. All I got was the short-long-short LED array every 5 seconds. This little "ghetto" trick with the center contact on the power lead worked great and my ACD is alive again. Go figure.
Posted on Apr 22, 2010
Just tried Moozler's paper "W" solution mentioned above for my 23" CD and it works!
Posted on Jan 25, 2010
Holy sh------ I can't belive it It worked The thing worked!!!!! so I guess I will re install the monitor and get back to work! Moozer you are a Genius
Posted on Dec 19, 2009
The real cause of the the problem is due to failed 3.3v Voltage regulator VR3 on the main board, the middle output pin should be 3.3v, bad one will read about 4vdc which will confuse the power supply detector circutit on the power supply pin due to wrong regulator output, sooner or later the main board will be damage beyond repair if the regulator is not repalced.
Posted on Jan 19, 2012
Hello my 23 inch cinema HD Display has done the same black screen and blinking light thing over nite so i tried everything and came across this middle prong thing i put masking tape on the middle pin and pushed it in gently and booted up the computer and voila it works and it even comes back on when i put it to sleep, but the question i have to ask is this going to harm the monitor over a period of time masking off the middle prong , what is the middle prong for is it also the negative ground any more info on this could save peeps alot of money either way
Posted on Mar 08, 2010
Surge suppression is not fail safe. It is clear the problem is not Apple, related to the power outage.
The fact that you have no Apple Support is also your fault and not Apple's.
You've also tried to use an adapter that was completely the wrong rating.
Maybe you should speak to the electricity company or insurance company about a claim. Just don't tell them all the stupid things you've been doing with wrong adapters etc.
Posted on Sep 12, 2009
This works! thank you so much. means a lot.
Posted on Aug 06, 2016
Yes its working, i repaid my cimena 4 years ago - still working fine
Posted on Mar 11, 2015
Hi. I have that problem too but I am a little bit comfused about "the middle pin". Fron the "brick" there ia a cord to the moniotor and one to the wall socket. In my country, the wall socket only has two pins, so i wonder if not the middle pin by default is not used? Can anybody send me a picture or describe the procedure more graphic? Is the the cord from the brick to the monitor or the cord from the brick to the wall? Kind regards,Peter
Posted on Nov 23, 2012
I just tried this handy little trick, but it didn't work for me -- now NO lights are coming on. Is there an order I need to be plugging everything back in to get it to come on? Surely it can't be completely broken now??
Posted on Sep 20, 2012
I am kinda' in shock. This solution actually worked. Good job! Awesome!
Posted on Jul 27, 2011
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