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  1. , Caja inferior: paso 1, imagen 1 de 1

    • Remueve los siguientes diez tornillos que aseguran la cubierta trasera a la cubierta superior.

    • Tres tornillos tipo Philips (punta cruz) de 13.5 mm (14.1 mm)

    • Cuando remuevas estos tornillos, ten en cuenta cómo salen en un ángulo ligero. Deben volverse a instalar de igual forma.

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  2. : paso 2, imagen 1 de 1

    • Con la computadora boca abajo y usando ambas manos, levanta la caja trasera de la computadora, cerca de las ventilas, para desprender dos clips de seguridad de la cubierta superior.

    • Remueve la caja inferior y apártala.

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    : paso 3, imagen 1 de 1

    • Remove the three T6 Torx screws securing the right fan to the upper case.

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    • Use the flat end of a spudger to pry the right fan connector up out of its socket on the logic board.

    • It is useful to twist the spudger axially from beneath the fan cable wires to release the connector.

    • Remove the right fan from the upper case.

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    : paso 5, imagen 1 de 1

    • Use the flat end of a spudger to pry the AirPort / Bluetooth ribbon cable up off its socket on the logic board.

    • Fold the AirPort / Bluetooth ribbon cable back to keep it out of the way of the logic board.

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    : paso 6, imagen 1 de 1

    • Disconnect the iSight cable by pulling its connector toward the optical drive opening.

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    : paso 7, imagen 1 de 1

    • Use the flat end of a spudger to pry the optical drive cable connector up from the logic board.

    • Fold the optical drive cable back to keep it out of the way of the logic board.

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    : paso 8, imagen 1 de 1

    • Carefully pull the subwoofer/right speaker cable up to lift its connector out of its socket on the logic board.

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    : paso 9, imagen 1 de 1

    • Use the flat end of a spudger to pry the hard drive cable connector up out of its socket on the logic board.

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    • Remove the two short Phillips screws securing the small EMI shield to the logic board.

    • Remove the EMI shield from the logic board.

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    : paso 11, imagen 1 de 1

    • Use the flat end of a spudger to pry the trackpad cable connector up out of its socket on the logic board.

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    • Use your fingernail to carefully flip up the keyboard ribbon cable retaining flap.

    • Make sure you are flipping up the retaining flap, not the socket itself.

    • Use the tip of a spudger to pull the keyboard ribbon cable straight out of its socket.

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    : paso 13, imagen 1 de 1

    • Use the flat end of a spudger to pry the battery indicator cable connector up out of its socket on the logic board.

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    : paso 14, imagen 1 de 3 : paso 14, imagen 2 de 3 : paso 14, imagen 3 de 3

    • Grab the plastic pull tab secured to the display data cable lock and rotate it toward the DC-In side of the computer.

    • Pull the display data cable straight out of its socket.

    • Do not pull the cable upward, as the socket is very fragile. Pull the cable parallel to the face of the logic board toward the corner of the upper case.

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    • Use the tip of a spudger or your fingernail to flip up the retaining flap on the keyboard backlight ribbon cable socket.

    • Be sure you are prying up on the retaining flap, not the socket itself.

    • Pull the keyboard ribbon cable straight out of its socket.

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    : paso 16, imagen 1 de 1

    • Remove the following screws:

    • Seven 3.3 mm T6 Torx screws securing the logic board to the upper case.

    • Two 8 mm T6 Torx screws securing the DC-In board to the upper case.

    • Do not remove the logic board yet! There are components on the underside of the logic board attached to the the upper case that must first be disconnected.

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    : paso 17, imagen 1 de 1

    • Carefully lift the logic board assembly from the left side and work it out of the upper case, minding the port side that may get caught during removal.

    • Do not entirely remove the logic board yet!

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    : paso 18, imagen 1 de 1

    • Lift the logic board enough to gain clearance and use a spudger to pry the microphone up off the upper case.

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    : paso 19, imagen 1 de 1

    • Slide the logic board away from the port openings and lift the assembly out of the upper case.

    • Before reinstalling the logic board, it is easiest to press the microphone down into its housing in the left speaker to keep it in place.

    • To avoid ESD damage, be sure to lay your logic board on a soft, static free surface during service.

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    : paso 20, imagen 1 de 1

    • The picture shows a schematic which is similar to Mac Book Pro's power input circuit. The series components L1, F1, T1, T2 have to draw the full power, so those are of interest for us. With an ohmmeter you can check these parts.

    • L1: Since I could not figure out the manufacturer of this common mode choke I recommend to use a new MagSafe PCB.

    • F1: According to the printing on this part it is very likely that this is a Littelfuse 0469006 6A fuse.

    • T1, T2: Both MOSFETs are HAT1128R type. Since this part is obsolete I took IRF9317PbF

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    : paso 21, imagen 1 de 1

    • The picture shows where the relevant parts are placed on the logic board. F1, T1 and T2 are marked green. L1 is mounted on the MagSafe PCB and so not seen on the picture.

    • After you have figured out which of these parts (L1, F1, T2, T2) are defective you can change them. I recommend to replace both MOSFETs if there is at least one damaged.

    • After replacing the defective parts you can check the functionality by connecting the battery and the power adapter to the logic board. If everything is fine the LED of the MagSafe connector will light up green and switch to orange if battery will be charged. Be very careful.

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7 comentarios

I don't know if any 80w MagSafe. It should be 85w for 15" and 60w for 13"...

mamashannon4u - Contestar

Is there any chance you would be able to show the location of these parts if the same thing happened on a 2012 MacBook Pro Retina? I've been trying to find the information for a couple days now. Thank you

Nick - Contestar

Great post! Thank you!

chonghak Kim - Contestar

I can’t find T1 and T2. My board is little different from the picture . Mine’s 2011 or 12 i7 processor. Please help!

chonghak Kim - Contestar

Admirable ! and the pics can be enlarged a lot ! thank you!

Isaac OLEG - Contestar

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