Issue with iMac screen - black

[Nothingfaced]

Hey all.

I have a late 2009 21 inch iMac Core 2 Duo...500GB.

This thing has run like a champ since I bought it except my bluetooth went out a couple of years ago and had to be serviced. Anyway.

Starting yesterday, my iMac screen will go black.... but it's not asleep because iTunes will play.

I will hit the "speedometer" looking button on my wireless keyboard, and the screen will very shortly "flash" where I can see my desktop, but it won't show the dashboard, and it goes black again. I have to restart to get my screen back.


I've repaired disk permissions and rebooted, but don't know what else to do. Is this a hardware issue or software issue?

Thanks.

 

[killerrobot]

Definitely sounds like a hardware issue. You should be able to run the Apple Hardware Test by holding D and booting off the second install disk. I'd run the extended test (might take 3-4 hours depending on amount of RAM) and see if any errors are discovered.