820-2879-B PPBUS_g3h is coming 12.6V then gradually going to 0.v in 20-30 seconds

Don Anton

New member
Hi All,

This is not a liquid damaged macbook. how ever got moisture near C6990. Earlier no pp3v42_g3h . I replaced the caps and now i have steady
PP3V42_g3h. But PPBUS_G3H is coming 12.6v then gradually going down.

I replaced ISL625 and Q7020,Q7035. no change.

Any clue?
 

Don Anton

New member
Spot on. #v3_s5 was shorted. Replaced the shorted caps fan spinning. Thank you so much for your help.
 
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