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iMac G5 Power Supply Question


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#21
kiwiron

kiwiron

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Hi folks, this is another question really, as I'm new so can't post a new topic yet.
I've a G5 20" isight with a blown 661-3780 power supply. The DC out for these is only 5 pins and the supply itself states 12.1 volts and 15.4 amps. Can anybody please indicate the voltages on the 5 pinouts. The wires are 2 grey, 2 black, and 1 brown. The grey and black wires are joined on the power supply circuit board, so its really only 3 pinouts. I want to test the machine before splashing out on an expensive replacement, but haven't been able to find the pinout voltages anywhere. Getting desperate!


Typical, that I found the info right after posting!

For an imac G5 17"/20" isight (early 2006)
My EEE code is UQP
with an 661-3780 power supply with only 5 pinouts
these are:

Grey: +12V
Grey: +12V
Black: ground
Black: ground
Brown: PFW (battery powered signal between +3 and +6.5 volt to switch power supply on)

Hopefully this might help somebody else.

Cheers

#22
MacintoshHealer

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Tanks for the pin out!
PFW , the brown line is a voltage coming out of the PSU or going in?





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