iMac G4 dome not powering up?

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iMac G4 dome not powering up?

Hi,
I have a friends iMac G4 dome type iMac that is doing nothing when the power button is pressed.
I've had the dome apart and checked there is a voltage coming out of the first PSU, which looks like
a AC to DC converter, it measures about 360 volts going in to the next PSU.
I attempted to remove two screws which seemed to be securing this PSU but it did not budge?
Am I missing something.

Is there any other checks I might try to see where the fault lies?

Is it possible to buy these PSU's?

I'm in the UK.

Many thanks

Mike

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Have you pressed the little b

Have you pressed the little button on the logic board? (cuda reset) Try removing the PRAM battery. 90% of the time, pram batteries and random issues cause no power on these machines. I can't count the number of machines that have come right back up after pressing the cuda switch.

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Last seen: 16 years 9 months ago
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Hi, no I have not pressed th

Hi,
no I have not pressed the button, although I did remove the battery for a while and put it back in.
I just looked again for the button but could not see it? There are some test points near
the PRAM battery labelled J18?
(This is the dome/angle poise iMac G4)
thanks
Mike

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Last seen: 16 years 8 months ago
Joined: Jul 26 2007 - 13:06
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This should help.. http://doc

This should help.. http://docs.info.apple.com/article.html?artnum=95165

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