Responder a: After powersurge no light on magsafe+no charge. Board or PwrSupply?I have fixed one MacBook charger with the same issue. Steps - (1) Identify the fuse (T3.15A 250V) near the AC input. (2) Just check the continuity of fuse with multimeter. (3) If no continuity, you have found the issue. (4) Just connect the fuse's end with a jumper wire. (5) Plug the charger and test the output. It should work. (6) The charger will work like this but for future protection try to get the same fuse from market and replace with jumper wire. I will be posting the pics soon.