Display won't work after hard drive replaced successfully?
The guide for replacing a hard drive on my 24" iMac 2211 was great, but despite following all the steps exactly, the display wouldn't go on once I got everything together. I then took it all apart AGAIN, confirmed all the connections were solid, no pins were bent, all things in the right place facing the right way, no loose wires, put it all back together and still the display is not working.
Note: The hard drive IS working, as confirmed through target disk mode from another computer, but the display just stays black.
I hear the startup bong, but absolutely no action on the display. Even if there was no startup disk the display would light up and give me a "sad mac" icon, but nothing. Despite that, I've tried repairing permissions from another computer via firewire (well, "verify and repair", actually, since that's the only choice from another comuter), trying to startup from another disk using option on startup, but no-go, display not working. I verified the hard drive and installed a system before starting, and as I say I can see it in target disk mode.
I'm wondering if there's anything particular I could look for--anything that might be common in this sort of procedure that has to do with the display--because even though I'm quite technical, I do not know what to do except take it to a shop, which I really really don't want to do.
I'm fairly decent at this sort of thing, and have done many, so please feel free to tech-talk me.
thanks very much for any help
Is this a good question?
9 Comments
Did you pinch a cable? Or did you install the ribbon backwards by mistake?
by Dan
Thanks for the good suggestion, Dan, but when I took it apart the second time I spent a ton of time making sure I didn't do just what you said. I really believe I put everything back correctly. In most cases the connecters only go in one way. The main hard-to-get-to display ribbon only goes in one way also, per my testing.
An aside: I use little dixie cups to hold screws or whatever at each stage, and number them and stack them so as to have the right thing at the right time, which helps a lot.
by NMcQ
The only other thing I can think off is a burnt fuse. Also did you use proper ESD equipment & procedures? It doesn't take much to zap a circuit.
by Dan
Remembering that I did remove the circuit board that the ribbon connects to, just slightly, because I just couldn't get the connector to seat, and I'd seen others did same. Anything come to mind that could have been messed up there?
thanks,
Neil
by NMcQ
Thanks Dan.
Where's the fuse, in general? Is there only one?
I see a battery in there, and I think it's for things other than the display, right?
Any ideas on how to check various boards and components which could make for a bad display? I have volt meter thing here.
I'll check the fuse though. I did try to use good ESD, but not perfect. No different from other fixes, though. Thanks for the thoughts, I'm about to attack it one last time before taking it in.
thanks,
Neil
by NMcQ
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