Monday, 9 February 2015

Repair my Macbook Unibody (late 2009) 60W Magsafe charger

From October 2009, till now, I have fixed (maybe some of it cannot be called real repair) my Macbook countless of times on my own. These includes replace the screen due to the cracked, changing/repalced my hard drive many times, replace and also upgrade memory RAM, and most of it are the Magsafe charger.


I am not sure why, but, my magsafe always have thermal dissipation problem and generate heat more than it should when in use. Magnetic connector that attached to the Macbook  get warmer/hotter when I am charging for hours during the longer usage. Even, the magsafe converter (big white square thing) sometimes getting hot too.

magnetic connector separated from supply cable due to excessive heat.

magnetic connector and pins separated from cable

by remove two lock pins,  plastic that hold supply pins can be detached

supply pins plastic holder detached from magnetic connector.

circuit for magsafe dc supply


insert pin into plastic holder and solder it.

using clamper is easier to solder



TESTED WORKING
you can verify the charger by charging your mac

repaired charger are verified and working.


NOW, NEED TO REDO THE OUTER COSMETIC TO MAKE SURE ITS DOES NOT BROKE AGAIN.

insert sumi tube

use plyer to tighting the connector cover into the magnetic 

attach the sumi tube to the cover

heating up the sumi tube to shrink the rubber tube

tada...final result!!!
So, instead of throwing broken charger into the bins, I think, why not we try to fix it. If its work, we will save money and also saving the earth by recycling the product. Cheers

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