Model A1225 / Mid 2007 and Early 2008 / 2.4, 2.8, or 3.06 GHz Core 2 Duo processor

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Why do the -02A1 and -02A power supplies have different color wires?

iMac EMC 2134

So my 24" iMac went "pop" and stopped working a week later.

I opened it up, and quickly saw that a MOSFET on the supply went ka-boom. So I ordered a new power supply.

Old one is PA-3241-02A Rev A

New one is a PA-3241-02A1 Rev A

So I went to install it. Started connecting it up, and realized that one of the connectors (the AC power input, I guess, because the others are DC output, LCD inverter, and temp sensor) has different color wires going to it.

So, if I plug it in, Blue goes to Brown, and vice-versa. I'm no electrical tech or engineer, but this strikes me as something worth investigating.

Looking at the power board, the component that this is plugged into (a fuse, I gather, because it says T5A 250V on it) is also installed backwards from one supply to the other.

So before I plug this in, explode the iMac, and burn the house down, I figured I'd ask if this was a problem, or should I just let-er-rip?


Answered! View the answer I have this problem too

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Do you have the 2.4 model or the 2.8 GHz model? Look on the bottom of your stand.

Apple iMac "Core 2 Duo" 2.4 24-Inch (Al) Specs

Identifiers: Mid-2007 - 24" - MA878LL - iMac7,1 - A1225 - 2134


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So, despite the fact that the wires end up plugging into the opposite color, the new power supply worked properly.

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I think the new one is for a G5 iMac. Look at the photos here:

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alex will be eternally grateful.
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