Chosen Solution
My 24” Cinema Display stopped displaying anything (totally darkness) recently, but everything else seems works fine, such as speakers, iSight cam, and my MacBook can still detect it. I thought it might be the all-in-one cable issue, so, I bought one used over eBay and have it replaced, but it is the same issue, black screen. I also tried using a flash light on the screen, but can’t see any images at all. So, at this stage, what’s the most possible cause? Any thoughts? Thanks,
@lovecd could be the LCD but I would suggest you go ahead and post some pictures of all of your parts in particular the logic board. Let’s see if there are other things that cause this. You should at least have a backlight even if your panel is not working. Check the voltage on your logicboard. Between TP81 and chassis ground you should have between 23.3 and 25.7 Volt. If you don’t it is most likely the logic board not the panel.
The… screen? Considering you already replaced the cable and your Mac still detects it, the only assumption really left would be that the screen itself is just dead (not the whole monitor)
