Macbook Pro 15 Unibody Mid 2012 Left Speaker Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          1 - 2 hours

Sections

Lower Case
2 steps
Battery Connector
2 steps
Left Fan
3 steps
Logic Board
15 steps
Left Speaker
3 steps

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BackMacBook Pro 15" Unibody Mid 2012
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Introduction

What you need

Step 1

              Lower Case

Remove the following ten screws securing the lower case to the upper case:
Three 13.5 mm (14.1 mm) Phillips screws.
Seven 3 mm Phillips screws.
When removing these screws, note how they come out at a slight angle. They must be reinstalled the same way.

Remove the following ten screws securing the lower case to the upper case:

Three 13.5 mm (14.1 mm) Phillips screws.

Seven 3 mm Phillips screws.

When removing these screws, note how they come out at a slight angle. They must be reinstalled the same way.

1024

Step 2

Using both hands, lift the lower case near the vent to pop it off two clips securing it to the upper case.
Remove the lower case and set it aside.

Using both hands, lift the lower case near the vent to pop it off two clips securing it to the upper case.

Remove the lower case and set it aside.

Step 3

              Battery Connector

For certain repairs (e.g. hard drive), disconnecting the battery connector is not necessary but is recommended as it prevents any accidental shorting of electronics on the motherboard. If you do not disconnect the battery connector, please be careful as parts of the motherboard might be electrified.
Use the edge of a spudger to pry the battery connector upwards from its socket on the logic board.
It is useful to pry upward on both short sides of the connector to “walk” it out of its socket.

For certain repairs (e.g. hard drive), disconnecting the battery connector is not necessary but is recommended as it prevents any accidental shorting of electronics on the motherboard. If you do not disconnect the battery connector, please be careful as parts of the motherboard might be electrified.

Use the edge of a spudger to pry the battery connector upwards from its socket on the logic board.

It is useful to pry upward on both short sides of the connector to “walk” it out of its socket.

Step 4

Bend the battery cable slightly away from its socket on the logic board so it does not accidentally connect itself while you work.

Bend the battery cable slightly away from its socket on the logic board so it does not accidentally connect itself while you work.

Step 5

              Left Fan

Remove the following three screws securing the left fan to the logic board:
Two 3.5 mm T6 Torx screws.
One 4.2 mm T6 Torx screw.

Remove the following three screws securing the left fan to the logic board:

Two 3.5 mm T6 Torx screws.

One 4.2 mm T6 Torx screw.

Step 6

Use the flat end of a spudger to disconnect the left fan connector from the logic board.
It is useful to twist the spudger axially from beneath the fan cable wires to release the connector.
The fan socket and the fan connector can be seen in the second and third pictures. Be careful not to break the plastic fan socket off the logic board as you use your spudger to lift the fan connector straight up and out of its socket.
The layout of the logic board shown in the second picture may look slightly different than your machine but the fan socket is the same.

Use the flat end of a spudger to disconnect the left fan connector from the logic board.

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

The fan socket and the fan connector can be seen in the second and third pictures. Be careful not to break the plastic fan socket off the logic board as you use your spudger to lift the fan connector straight up and out of its socket.

The layout of the logic board shown in the second picture may look slightly different than your machine but the fan socket is the same.

Step 7

Lift the left fan out of the upper case.

Lift the left fan out of the upper case.

Step 8

              Logic Board

Use the flat end of a spudger to lift the right fan connector 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.

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

Step 9

Remove the three 3.4 mm (3.1 mm) T6 Torx screws securing the right fan to the logic board.
Lift the right fan out of its opening in the logic board.

Remove the three 3.4 mm (3.1 mm) T6 Torx screws securing the right fan to the logic board.

Lift the right fan out of its opening in the logic board.

Step 10

Pull the camera cable out of its socket on the logic board.
Don’t lift upward on the camera cable as you disconnect it. Pulling upward on the cable may damage both the cable and the logic board. Pull the cable parallel to the face of the logic board.

Pull the camera cable out of its socket on the logic board.

Don’t lift upward on the camera cable as you disconnect it. Pulling upward on the cable may damage both the cable and the logic board. Pull the cable parallel to the face of the logic board.

Step 11

Use the flat end of a spudger to pry the AirPort/Bluetooth connector up from its socket on the logic board.

Use the flat end of a spudger to pry the AirPort/Bluetooth connector up from its socket on the logic board.

Step 12

Use the flat end of a spudger to lift the optical drive connector out of its socket on the logic board.

Use the flat end of a spudger to lift the optical drive connector out of its socket on the logic board.

Step 13

Disconnect the hard drive/IR sensor cable from its socket on the logic board by lifting up from beneath its connector.

Disconnect the hard drive/IR sensor cable from its socket on the logic board by lifting up from beneath its connector.

Step 14

Use the flat end of a spudger to lift the subwoofer/right speaker connector out of its socket on the logic board.
Pry up from beneath the wires.

Use the flat end of a spudger to lift the subwoofer/right speaker connector out of its socket on the logic board.

Pry up from beneath the wires.

Step 15

Remove the two 1.5 mm ( 1.2 mm ) Phillips screws securing the keyboard/trackpad cable cover to the logic board.
Lift the cover off the logic board and set it aside.

Remove the two 1.5 mm ( 1.2 mm ) Phillips screws securing the keyboard/trackpad cable cover to the logic board.

Lift the cover off the logic board and set it aside.

Step 16

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

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

Step 17

Use your fingernail to flip up the retaining flap on the keyboard ribbon cable ZIF socket.
Be sure you are prying up on the hinged retaining flap, not the socket itself.
Use the tip of a spudger to pull the keyboard ribbon cable out of its socket.

Use your fingernail to flip up the retaining flap on the keyboard ribbon cable ZIF socket.

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

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

Step 18

Use the flat end of a spudger to lift the battery indicator connector up and out of its socket on the logic board.

Use the flat end of a spudger to lift the battery indicator connector up and out of its socket on the logic board.

Step 19

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 on the logic board.
Do not lift up on the display data cable, as its socket is very fragile. Pull the cable parallel to the face of the logic board.

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 on the logic board.

Do not lift up on the display data cable, as its socket is very fragile. Pull the cable parallel to the face of the logic board.

Step 20

Use the tip of a spudger to flip up the retaining flap on the keyboard backlight ribbon cable ZIF socket.
Be sure you are flipping up the hinged retaining flap, not the socket itself.
Pull the keyboard backlight ribbon cable out of its socket.

Use the tip of a spudger to flip up the retaining flap on the keyboard backlight ribbon cable ZIF socket.

Be sure you are flipping up the hinged retaining flap, not the socket itself.

Pull the keyboard backlight ribbon cable out of its socket.

Step 21

Remove the following nine screws:
Seven 3.4 mm ( 3.1 mm) T6 Torx screws on the logic board
Two 8 mm T6 Torx screws on the DC-In board

Remove the following nine screws:

Seven 3.4 mm ( 3.1 mm) T6 Torx screws on the logic board

Two 8 mm T6 Torx screws on the DC-In board

Step 22

Carefully lift the logic board assembly from its left side and work it out of the upper case, minding the optical drive cable and the I/O ports that may get caught during removal.
If necessary, use the flat end of a spudger to separate the microphone from the upper case.
Pull the I/O port side of the logic board away from the side of the upper case and remove the logic board assembly.

Carefully lift the logic board assembly from its left side and work it out of the upper case, minding the optical drive cable and the I/O ports that may get caught during removal.

If necessary, use the flat end of a spudger to separate the microphone from the upper case.

Pull the I/O port side of the logic board away from the side of the upper case and remove the logic board assembly.

Step 23

              Left Speaker

Lift the microphone out of its recess in the left speaker housing.

Lift the microphone out of its recess in the left speaker housing.

Step 24

Remove the two 5 mm Phillips screws securing the left speaker to the logic board.

Remove the two 5 mm Phillips screws securing the left speaker to the logic board.

Step 25

If present, remove the small strip of black tape covering the left speaker connector.
Carefully pull the left speaker wires upward to lift the left speaker connector out of its socket on the logic board.

If present, remove the small strip of black tape covering the left speaker connector.

Carefully pull the left speaker wires upward to lift the left speaker connector out of its socket on the logic board.

To reassemble your device, follow these instructions in reverse order.

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                    Andrew Optimus Goldheart

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Introduction#

What you need#

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Introduction

What you need

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