Why is my iMac display not powering?
After replacing my 2010 iMac HDD with a SSD my display isn't powering on. I had originally thought it was simply the display data cable (which I had damaged), but after replacing it with a new one it still isn't responding!
I can hook up an external display and everything else works great. The display preferences only recognize the external display so I think that rules out only a back light issue.
The first 3 of the 4 diagnostic LEDs are on. All the connectors and cables look fine.
Anyone have any ideas what is going on?
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