Hi All.
I have an Apple 85W MagSafe Power Adapter (Model No: A1343) that has a blown power MOSFET (Q050 - Infineon IPP60R299CP - - all 3 pins dead short). When the FET blew it took out an SMT resistor, as well as possibly vaporizing an entire capacitor and its pad (see attached photos). Hopefully that will be all that is blown, but until I can replace the FET and the other physically damaged components I can't tell.
The burned resistor and cap in question are located underneath the large main cap (as seen in 2nd and 3rd images).
Is anyone able to measure what the value of R051, and confirm if C052 is actually a NO STUFF? By the looks of the remaining pad for C052, it could very well be a NO STUFF as the solder looks undisturbed. Just weird that one pad would vaporize if there was no component there. I have cleaned off most of the carbon in there (there was a lot!) for the photos.
Attached images to help identify and/or locate the components I am referring to. In the first image I am showing the board layout with the main cap in the top left. In the second image, I have bent the main cap upwards to see the other components underneath that are damaged/burnt. Third image is a closeup of the burned area and damaged components.
I am hoping someone either has a schematic, or is able to identify the components, or if someone has a working adapter to see what the values are that would be greatly appreciated.
Any and all help appreciated, and thanks in advance.
I have an Apple 85W MagSafe Power Adapter (Model No: A1343) that has a blown power MOSFET (Q050 - Infineon IPP60R299CP - - all 3 pins dead short). When the FET blew it took out an SMT resistor, as well as possibly vaporizing an entire capacitor and its pad (see attached photos). Hopefully that will be all that is blown, but until I can replace the FET and the other physically damaged components I can't tell.
The burned resistor and cap in question are located underneath the large main cap (as seen in 2nd and 3rd images).
Is anyone able to measure what the value of R051, and confirm if C052 is actually a NO STUFF? By the looks of the remaining pad for C052, it could very well be a NO STUFF as the solder looks undisturbed. Just weird that one pad would vaporize if there was no component there. I have cleaned off most of the carbon in there (there was a lot!) for the photos.
Attached images to help identify and/or locate the components I am referring to. In the first image I am showing the board layout with the main cap in the top left. In the second image, I have bent the main cap upwards to see the other components underneath that are damaged/burnt. Third image is a closeup of the burned area and damaged components.
I am hoping someone either has a schematic, or is able to identify the components, or if someone has a working adapter to see what the values are that would be greatly appreciated.
Any and all help appreciated, and thanks in advance.
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