Update on mine...
I got sick of looking at my beautiful gigantic cinema display sitting on my desk collecting dust and taking up space doing nothing, so about a week ago I decided to order a new Power Supply Unit (PSU) and try my luck at installing it... I am happy to report my monitor is working again! The PSU looks like a different brand than the original, but works just fine. Quick start up, no random black outs, no more plugging-unplugging. Parise the lord.
I got it from DV Warehouse:
661-6048 Apple Power Supply 250W for LED Cinema Display 27" 614-0487 - NEW (661-6048) | $149.00 |
I followed instructions from iFixit to take it apart (Took about 30 minutes to do in all):
http://www.ifixit.com/Teardown/Apple+Thunderbolt+Display+Teardown/6525
It helps to have the propper Torx screwdriver/bits and suction cups to pull the screen off. Also if you decide to do it yourself, be careful with the PSU, I belive they hold a charge and can shock you. I wore rubber work gloves as a precaution when touching it. Also keep some windex, lint-free paper towels and a swiffer duster on hand (The fluffy kind with the handle) for when you reassemble it. It's really easy to get dust trapped between the glass screen and the LCD.