bjf
Member
I have n 820-3787 with pretty minor spill damage (see pics.) There was a short on PPVIN_S5_HS_COMPUTING_ISNS at U7330. I replaced U7330 and the short is gone. Fan spins once for about a second and that's it. Magsafe light is on. Normal green to orange switch. SMC reset is normal, turns green for a few seconds.
PPBUS_G3H: 12.56V
PP3V42: 3.4
PPVRTC_G3H: 3.4
PP3V3_S5: 3.3V
PP3V3_SUS: 3.3V
PP3V3_S4: 0
PP5V_S5: 5V
PP5V_S4: 0V
SLP_S3 and SLP_S4 are both 0V
When I check 3V3_S4 it will start at 3.3 while fan is spinning and then slowly work it's way down to about 0.20V. Same goes for PP5V_S4. Drops down from 5V after fan stops. Not sure where to go from here. Let me know if there's any other information that would help.
PPBUS_G3H: 12.56V
PP3V42: 3.4
PPVRTC_G3H: 3.4
PP3V3_S5: 3.3V
PP3V3_SUS: 3.3V
PP3V3_S4: 0
PP5V_S5: 5V
PP5V_S4: 0V
SLP_S3 and SLP_S4 are both 0V
When I check 3V3_S4 it will start at 3.3 while fan is spinning and then slowly work it's way down to about 0.20V. Same goes for PP5V_S4. Drops down from 5V after fan stops. Not sure where to go from here. Let me know if there's any other information that would help.