820-4924 came dead

Soji

Member
It came with not green light on MagSafe
PPBUS_G3H-12.25 instead of 12.59
PP5v_s5 is not present.
PP3v42_G3h is present
PP1v2_s5_smc_vddc is present.
so I decided to change smc,
The amber light came
Then ppbus_g3h now got partially shorted.
d7005 stated heating up. I removed it d7005
The resistance on PPBUS_G3H_R is- 0.150 which seen low and the line is not drawing any current with PSU.
 

2informaticos

Administrator
Staff member
"The resistance on PPBUS_G3H_R is- 0.150 which seen low"
Did you ever compare with good board???
Why do you make wrong assumption so easy?
Diode mode should be around 0.120-0.160, depending by multimeter used; over 1.500 in reverse way, or OL.

D7005 overheats and 3V42_G3H present, for sure?
 
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