Re: New Members - please post your introductions here

Howdy all,

my name is Ron and I am from Holland, so Dutch.
I am probably one of the older members of this forum, actual age 58 today.
Lost my hair but not my whit.

Only working on Apple machines.
Looking forward to learn and contribute to the forum.

Thanks,
Ron

Re: iMac 27" schematics + Boardview - 820-3478-A

Many thanks.

I used this BRD & PDF to compare to my 820-00292-A(2015 Imac 5K). Anyone has any suggestions to where to find BRD & PDF for 820-00292?

The 820-00292-A I have has a problem powering up. There are 4 LED's on the board, and the first LED(trickle power, 3V) should always be on when power is on the board. I have 12V power on the board and measured LED-1 which receives only 0.16V. I traced it back to

So it seems that Rail PP3V3_S5 receives only 0.16V.
The question...