820-3435-B - missing components

[jpadie]

I've looked at some images of the boards on google and they all have these components missing. Odd that they are denoted as critical in the schematic.

 

[dukefawks]

There are no missing parts that is where you have to start from at this point. There are many parts "not stuffed" and the schematic is not always right. What is the issue with the board? Do some basic measurements like PPBUS, 3V3_S5, etc. Green/orange light present?

 

[jpadie]

Board is working now. Spins up and boots fine.
the rtc chip was blown and a bunch of resistors and caps got lost with the air on too high when I replaced it. All 0201s but I was able to replace them all with 0402 from an older mac donor board thankfully.

Last problem on this board is that the backlight fuse keeps blowing. on inspection the connector is fried inside and the cable is distinctly iffy. Not surprising as the plastic hinge is very crispy at the backlight end. Must have been a lot of heat generated when the original short happened.

So those are next to be replaced and then (touch wood) we're done.