Saltar al contenido principal
Ayuda

Versión actual por: originalmachead and oldturkey03 (detalles del voto) ,

Título:

help with damaged IC identification

Texto:

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/Romulas/?action=view&current=PICT0379.jpg

this is the regulator/fet/? Ic in question. Top numbers are 1127 (8G4 55A2, lot and date numbers?)

http://s3.photobucket.com/albums/y80/Romulas/?action=view&current=PICT0379-1.jpg

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

Dispositivo:

MacBook Unibody Model A1278

Estatus:

open

Respuesta Aceptada:

+10582

Editado por: ChrisW ,

Título:

help with damaged IC identification

Texto:

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/Romulas/?action=view&current=PICT0379.jpg
this is the regulator/fet/? Ic in question. Top numbers are 1127 (8G4 55A2, lot and date numbers?)
http://s3.photobucket.com/albums/y80/Romulas/?action=view&current=PICT0379-1.jpg
-it’s the only area the board had damage. There was a little corrosion and residue which washed out fine using alcohol and a hog hair brush.
-
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

Dispositivo:

MacBook Unibody Model A1278

Estatus:

open

Aporte original por: ChrisW ,

Título:

help with damaged IC identification

Texto:

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/Romulas/?action=view&current=PICT0379.jpg

this is the regulator/fet/? Ic in question. Top numbers are 1127 (8G4 55A2, lot and date numbers?)

http://s3.photobucket.com/albums/y80/Romulas/?action=view&current=PICT0379-1.jpg

it’s the only area the board had damage. There was a little corrosion and residue which washed out fine using alcohol and a hog hair brush.

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

Dispositivo:

MacBook Unibody Model A1278

Estatus:

open