LED 1 goes off when I press the power button

Hi there,

I have an IMAC 20 Isight and am having starting up problems.

I have opened up my mac and uncovered the 4 LED which are hidden behind the right speaker.

When I connect the power cable to the mac. The 1st LED lights up. But when I press the power button, the 1st LED goes out and none of the others light up. I have reset the SMU and that didnt help.

I have bought a new PSU and I still have the same problem.

Does anyone have any idea what it could be.

Answer this question I have this problem too

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