820-2879 - No green light

kronos23

New member
Working on a 820-2879 with no green light PP3V42_G3H is missing. Not present at U6990. I have PP18V5_DCIN_CONN present before Q7080 and Q7085 but I am having a hard time understanding how these create PP3V42_G3H and what my next step should be. The board has been liquid damaged.
 

larossmann

Administrator
Staff member
Confirmed R6905 had no continuity. Replaced it but immediately blew when magsafe plugged in.

or bad cap after r6905. check for a short after r6905.

my dad used to get these really bad headaches he went to the doctor for.. the doctor wouldn't just hand him pills to get rid of the headache. he'd ask, "hey, are you still married?"

if something blows, ask why it blew before you replace it.
 
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