[bOOzo]

My dad brought home an iMac rev D which has problems with power. I tried plugging it in and starting it up, the two first times the speakers just clicked and the third time it did power up for a sec and the power button glowed orange, but then it died.

I assume that it has a broken power supply. Is there a good way of confirming this? can it be seen by looking at the power supply for example?

Would it be hard to replace it if I somehow managed to find a new power supply?

Thanks.

[Detrius]

Please forgive my memory, as I don't remember if a rev D is a tray loader or a slot loader. Either way, on both machines, there is a slew of different parts that this could be. The most likely is the analog/video board (in the tray load) or the power/analog/video board (in the slot load). This is not a user replaceable part. The CRT can kill you. I would HIGHLY recommend taking this to a service center to get a diagnosis and estimate.

The other possibilities are the CRT, Logic Board, Power Supply board (in the tray loader), and the Down Converter Board.

Have you tried resetting the PMU?

[bOOzo]

Rev d is with the tray. My brother have a working rev d, so I could take the part with the cd, harddrive, cpu and all that and put it in his comp to try if it works.

How can the CRT kill me?
The idea was that we might be able to get the imac working without taking it in for repair, but that might not work then.

How do I reset the PMU?

[Detrius]

Originally posted by bOOzo:
Rev d is with the tray. My brother have a working rev d, so I could take the part with the cd, harddrive, cpu and all that and put it in his comp to try if it works.

How can the CRT kill me?
The idea was that we might be able to get the imac working without taking it in for repair, but that might not work then.

How do I reset the PMU?

If his can works in your box, you likely have a bad logic board.

The CRT is basically a really freaking huge capacitor. It holds a significant charge and will rebuild a charge, upwards of 50,000 volts. If you have one hand on or near a piece of metal and your other hand goes somewhere it isn't supposed to, WHAM your heart stops and you won't ever know what hit you. My co-worker has burn scars from when he wasn't as careful as he should have been with a Mac Classic. Anything that involves exposing the CRT is a BAD IDEA in any all-in-one unit (or TV, or Computer Monitor, etc...).

On the tray loaders, it's called the CUDA and it's a button on the logic board that you will see when you pull the can out. Check your battery as well. They sell them at Radio Shack for about $8.

[bOOzo]

I tried the cuda button, but it didn't help. I'll see if I'll continue to try and fix it. Thanks for the help and the heads up about the crt, I appreciate it!