Hey guys,
I have got this iMac 2011 power supply which doesn't provide any voltage. It is repeatedly chirping about every 2 seconds.
I already checked the most common parts but did not find any bad component.
The weird thing is, as I was checking the PSU with my oscilloscope, the PSU suddenly started! The chirping was now continuous, but I got 12V on the secondary side.
This brings me to the idea, that this problem has to be with some passive component? I was told, that the iMac won't start anymore, but very rarely it started.
Does anyone know this PSU and has experiences with it?
I think I would start troubleshooting the start circuit next, or what would you try?
Thanks.
I have got this iMac 2011 power supply which doesn't provide any voltage. It is repeatedly chirping about every 2 seconds.
I already checked the most common parts but did not find any bad component.
The weird thing is, as I was checking the PSU with my oscilloscope, the PSU suddenly started! The chirping was now continuous, but I got 12V on the secondary side.
This brings me to the idea, that this problem has to be with some passive component? I was told, that the iMac won't start anymore, but very rarely it started.
Does anyone know this PSU and has experiences with it?
I think I would start troubleshooting the start circuit next, or what would you try?
Thanks.
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