hi i have a 11" mac book air
with green light orange light no power up
board looks very clean no previouse signs of work but it may have been cleaned.
ppbus_g3h - 8.67v
pp5v_s5 - 0v
but no short to ground on pp5v_S5
following pp5v_s5 back i assume u7501 creates this
this has no 0v onvin on ppbus_s5_hs_other_isns
power supply showes 0.03 amp at 18.5v
any help would be appreciated john
with green light orange light no power up
board looks very clean no previouse signs of work but it may have been cleaned.
ppbus_g3h - 8.67v
pp5v_s5 - 0v
but no short to ground on pp5v_S5
following pp5v_s5 back i assume u7501 creates this
this has no 0v onvin on ppbus_s5_hs_other_isns
power supply showes 0.03 amp at 18.5v
any help would be appreciated john