Macbook pro 13, 820 2879 b, Turn on only with batery

Noguinfor

New member
Hey guys,
At first i have a problem with ppv3v42_g3h, because some liquid damage close to u5010. i clean up and 3v42 came back..
After i have a prob with =ppbus_g3h, only have 1.4v.
I take the fuse F7040, and have 1.4v in the same sides(pin1 and pin2).
i already change u7000 and capacitor c7040..
the board works fine only with battery.

any ideas ??

cumps
 

Noguinfor

New member
Sense resistors is fine, R7021/22 = 10ohm, 51/52 = 3 and 0.7 ohm.. Traces is ok too.. =(

sometimes i get 12.6v unstable and then drop to 1.6v.. only turn on with battery and dont charg the battery...
 

Noguinfor

New member
ya, i have stable 3v42.. the traces around U7000 appear to be well. if i let the charge on board PPBUS stay on 12V6, unstable but ok..
 
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