820-2530 no PP5V_S3_REG

arnonabuurs

New member
Back with another difficult one :). Attached images show what I tested. Since I have 3.3v from 7200 can I assume the Chip is working fine, although 5v is not coming out? So im trying now to troubleshoot the enable signal but cant find any issues yet, accept for one R that showed wrong, see image description.

On a sidenote, my customer told me he used the mac for quite some time with a defect fan, maybe something fried. The board looks nice though and I have green + orange light on charger.

Greetz
Arno
 

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dukefawks

Administrator
These do not auto power on. Did you try to power on by shorting C5710? See if PM_PWRBTN_L toggles when you short C5710.
 
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