help with damaged IC identification
Hi there,
a friend asked me to take a look at his laptop as it was out of warranty. it got some liquid damage. when i popped open the unit it had some corrosion and residue which all cleaned up nicely using alcohol and a hog hair brush.
i found a damaged component. from tracing the components it looks like it is in the power section.
it’s a 13.3 MacBook unibody logic board.
First picture is the top right section as the bottom of the notebook is open, bat and hd bay towards user.
http://s3.photobucket.com/albums/y80/Rom...
this is the regulator/fet/? Ic in question. Top numbers are 1127 (8G4 55A2, lot and date numbers?)
http://s3.photobucket.com/albums/y80/Rom...
any help on this one would be great! i can't seem to find any schematics anywhere, which i find odd for older electronics.....
Thanks,
-Chris
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3 件のコメント
thanks all for your help, checking with digikey now (slipped right by me been replacing boards way too long at work) and will try the apple guys
-Chris
ChrisW さんによる
i have a same problem spilled red wine same condition one leg of the ic not there but i manage to resolder it now same condition not powering up directly. have to hold the power button and put the chrger in and after 5-7sec release the button and press again. i can see my mac powered up have to do same all the time. and have many problem .
SIMRAN さんによる
Hi Sir, were you able to resolve the problem by some cleaning/servicing, or did you need to replace the IC? Or was there any other solution? Thanks
Ankit Singla さんによる