Re: iMac 21.5-Inch "Core i5" 2.3 (Mid-2017) 820-01069-b

Hi all I have same problem here. In my case with this exact model I get first and third led lights coming up and cycling again only first and third. Second one never comes up and fourth if off because the screen is of. I am thinking it could be bad PSU. Appreciate any suggestions.

So i need board view and schematic diagram for Board No.820-01069-B