hi all,
I been stuck on this map for a while now K24 a1278. i get 12.58volts momentarily and gradually drops to 2volts.The magsafe lite remains green but no voltage.i have CHANGED several isl6258a also the current sensing resistor and cap changed still same problem.earlier i got an open track from the shunt resistor to chagr_csip i repaired the track still the voyage comes for a 2 sec and goes back to zero.I have disconnect the F7000 fuse to the main system ppbus_g3h but still the voltage comes for 2 sec and drops slowly.pls can any one tell me the prob changed almost all cap and resistor mosfet

Did u manage to solve your problem? Have same issue. Changed 3 isl but still MOSFET is not opening..