No power light on 23" ACD. Is it dead?

badlydrawnboy

macrumors 65816
Original poster
Oct 20, 2003
1,161
168
I have a 23" ACD connected to my MBP. This morning I woke up to find my MBP had crashed. I had to use Command-Control-Power Button to restart. But then I noticed that the power light of my ACD was off, and it wasn't coming on.

I have an external keyboard that is plugged into the ACD, and a wired mouse plugged into the external keyboard; both of those are working (not sure if that means anything).

I tried resetting the PRAM on the MBP, but that didn't help.

Any ideas?
 

Apple fanboy

macrumors Nehalem
Feb 21, 2012
33,711
23,131
Behind the Lens, UK
I have a 23" ACD connected to my MBP. This morning I woke up to find my MBP had crashed. I had to use Command-Control-Power Button to restart. But then I noticed that the power light of my ACD was off, and it wasn't coming on.

I have an external keyboard that is plugged into the ACD, and a wired mouse plugged into the external keyboard; both of those are working (not sure if that means anything).

I tried resetting the PRAM on the MBP, but that didn't help.

Any ideas?
Power surge maybe? Have you tried replacing the fuse in the plug (or a different lead if that's easier)
 

badlydrawnboy

macrumors 65816
Original poster
Oct 20, 2003
1,161
168
Thanks for your reply. Not sure what you mean by fuse. The outlets and power strips are still working; I have printers, routers and the Macbook plugged into those and they're powered up.

What's strange is that I'm pretty sure the power light on the ACD was on when I first came into my office this morning. After restarting the Macbook, though, it went off and stayed off.

If the monitor was completely dead, would my keyboard and mouse (which are plugged into the ACD) still work? That seems strange.
 

Brian Y

macrumors 68040
Oct 21, 2012
3,526
653
Thanks for your reply. Not sure what you mean by fuse. The outlets and power strips are still working; I have printers, routers and the Macbook plugged into those and they're powered up.

What's strange is that I'm pretty sure the power light on the ACD was on when I first came into my office this morning. After restarting the Macbook, though, it went off and stayed off.

If the monitor was completely dead, would my keyboard and mouse (which are plugged into the ACD) still work? That seems strange.
Depends if the HUB is bus powered or not.

Do you have an Apple Store nearby? They'll have spare PSUs you can use to test the display :).
 

badlydrawnboy

macrumors 65816
Original poster
Oct 20, 2003
1,161
168
Depends if the HUB is bus powered or not.

Do you have an Apple Store nearby? They'll have spare PSUs you can use to test the display :).
Yes, I do. Good idea.

I've heard repairing the displays is more expensive than buying a new one, but if it's just the power brick, that would be a lot cheaper.
 

NorCalLights

macrumors 6502a
Apr 24, 2006
591
75
Yes, I do. Good idea.

I've heard repairing the displays is more expensive than buying a new one, but if it's just the power brick, that would be a lot cheaper.
Bring it on in to the Apple store. They'll have all of the tools to diagnose the problem, and they can give you a repair quote. If they find that the monitor and power supply are working normally, they won't charge you anything and you'll know it's something with the power at your desk.

And if you find the repair is too expensive, they can also sell you a new monitor :)
 

badlydrawnboy

macrumors 65816
Original poster
Oct 20, 2003
1,161
168
Bring it on in to the Apple store. They'll have all of the tools to diagnose the problem, and they can give you a repair quote. If they find that the monitor and power supply are working normally, they won't charge you anything and you'll know it's something with the power at your desk.

And if you find the repair is too expensive, they can also sell you a new monitor :)
They'll have a hard time doing that! I have two NEC monitors (PA271w and PA241w) connected to my Mac Pro. If the ACD connected to my Macbook Pro is dead, I'll probably replace it with a PA241w.