MacBook (13-inch)

The MacBook (13-inch) portable computer is the frst computer of its size featuring the Intel Cor
Duo processor and built-in iSight video camera. The main features and service diferences (from
similar-sized Apple portable computers) include:
- Higher resolution 13.3-inch LCD panel
- iSight camera built-in
- Infrared sensor on front right corner
- Hard drive is ofered as a customer-replaceable module
- Digital audio-in
- MagSafe magnetic power connector
- Supports extended desktop
- Vertical-insert connectors—most of the cable connectors on the logic board use a new
- design that requires special insertion and extraction (refer to the section “Vertical-Insert
- Connectors” in this chapter)
- Feet on the bottom case are heat-staked, so they are not removable
- Built-in keyboard as part of top case
- Operating temperature is hotter than previous models (refer to “Temperature Concerns” in
- this chapter)
Product name on display bezel:
MagSafe power connector port:

Infrared window on front of computer:


For additional views of the computer, refer to the “Views” chapter at the end of this manual.
Vertical-Insert Connectors
Most of the cable connectors on the logic board use a new design that requires special insertion
and extraction. Caution: To prevent damage to the connectors, install them from the front (away
from the cable) when reconnecting vertical-insert cables to the logic board.
Tools
Caution:
To prevent scratches or other cosmetic damage to the computer housing, use a soft
cloth as a protective layer when removing and installing the external screws.
The tools required to service this computer include:
- Clean, soft, lint-free cloth
- Coin
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Magnetic Phillips #00 screwdriver (preferably with a long handle)
- Black stick (Apple probe tool, part number 922-5065) or other nonconductive nylon or plastic
- fatblade tool
- Access card (Apple part number 922-7172) to open the top case
- Jeweler’s fatblade screwdriver
- Needlenose pliers
- Stack of books, weighted boxes, or other means of support for display while removing
- screws from hinge
- Thermal grease (Apple thermal compound syringe, part number 922-7144)
- Alcohol wipes
- Permanent marking, felt-tip pen
- Standard size CD or DVD disc
- Flashlight or bright lamp
Power Adapter
Warning:
The power adapter for this computer is unique to this model. It uses an MPM 4-pin
adapter plug. Do not use this power adapter with any other portable computer. Power adapters
from earlier iBook or PowerBook computers are not compatible and will not ft the MPM plug.
Temperature Concerns
This computer runs hotter than previous models. However, the normal operating temperature
is well within national and international safety standards. Nevertheless, customers may be
concerned about the generated heat. To prevent an unneeded repair, you can compare a
customer’s computer to a running model, if available, at your repair site. For more information
on temperature concerns and customer perception, refer to Knowledge Base article 30612 “Apple
Notebooks: Operating Temperature.”
http://docs.info.apple.com/article.html?artnum=30612
Note About Images in This Manual
Because a pre-production model was used for most of the images shown in this manual, you may
notice small diferences in appearance between the image pictured and the computer you are
servicing. However, although the appearance difers, the steps and sequence are the same unless
noted.
Memory Card Levers
Important:
The following image shows the memory cards and hard drive installed in the battery
bay. Note the correct position of the memory card levers. Some images pictured in this manual
used a pre-production model, so the direction and appearance of the levers difer from the
accurate depiction below. Refer to the Views chapter for other useful reference images.
Simplifed Flowchart for Take Apart
Although this fowchart does not include every serviceable part, you can use it as a reference
after becoming familiar with the detailed removal procedures.
Tools
- Clean, soft, lint-free cloth
- Coin
Part Location
Preliminary Steps
Warning:
Always shut down the computer before opening it to avoid damaging the internal
components or causing injury. After you shut down the computer, the internal components can
be very hot. Let the computer cool down for 30 minutes before continuing
Procedure
1.Shut down the computer.
2.Wait 30 minutes to allow the computer’s internal components to cool.
3.Unplug all external cables from the computer except the power cord.
4.Unplug the power cord.
5.Put on an ESD wrist strap.
6.Turn over the computer and place it on a soft cloth.

7.Use a coin to release the battery latch. Turn the coin a quarter turn clockwise to unlock the
battery.
Caution:
To prevent scratches or other cosmetic damage to the bottom case, use only a coin
to unlock and lock the battery.
8.Lift out the battery from the battery bay.

9.To install the replacement battery, tilt the foot end of the battery into the battery bay frst.
Then press and hold down the other end of the battery as you turn the coin to lock it into
place.

10.Reassemble and test the computer.
RAM Door (L-Bracket)
Tools
- Soft cloth
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade
- tool
Part Location
Preliminary Steps
Before you begin, remove the battery.
Procedure
1.With the computer closed and upside down on a soft cloth, touch a metal surface inside the
battery bay to discharge any static electricity.

2.Loosen—but do not try to remove—the three captive screws along the RAM door.

3.Holding the long end of the L-shaped RAM door, pivot it out from the battery bay. (If
necessary, use a black stick to tilt it up and out of the battery bay.) Be careful not to bend it.

Replacement Note: Before replacing the RAM door, make sure that
• Hard drive pull tab is not exposed
• Cards are fully inserted
• Memory card levers are fully down before replacing the RAM door
Replacement Note: Check that the replacement RAM door has a rubber cushion to protect
the hard drive opening and two EMI gaskets to protect the memory card openings.

4.Replacement Note: Install the replacement RAM door by frst aligning the short end at the
notch near the hard drive opening.

Replacement Note: Use a black stick, if necessary, to tuck in the EMI gaskets so they do not
protrude from the edge of the battery bay. Make sure the three screws align with the holes
in the bottom case before tightening them.
5.Reassemble and test the computer.
Memory (DIMMs)
This computer comes with a minimum of 512 MB of 667 GHz Double Data Rate 2 (DDR2)
Synchronous Dynamic Random-Access Memory (SDRAM) installed. It has two slots that can
accept SDRAM Small Outline Dual Inline Memory Modules (SO-DIMMs). The slots are side-by-side
on the logic board behind the RAM door. For best performance, memory should be installed
as pairs with an equal memory card in each slot. The maximum amount of memory for this
computer is 2 GB, with 1GB DIMM installed in each slot.
Memory cards must meet these requirements:
- 1.25 inch or smaller
- 256 MB, 512 MB, or 1 GB
- 200-pin
- PC-5300 DDR2 667 MHz Type RAM
Tools
- ESD wrist strap and mat
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
Part Location
Removal Procedure
1.Touch a metal surface inside the battery bay to discharge any static electricity.
2.Put on an ESD wrist strap.
3.In one swift motion, use one fnger to move the lever to the left and release it. This swift
motion ejects the memory card.
Caution: The memory card eject levers are on a spring hinge that operates on a side-to-side
horizontal plane. The mechanism can be damaged if the lever is forced outside of that
horizontal movement. To prevent damage to a lever, move it swiftly—in one sideways
direction only.

Note: Refer to the following if an issue occurs with a lever:
• If the lever wobbles, the lever may not be fully screwed in. Refer to “DIMM Lever Kit” in
this chapter.
• If the lever ofers no resistance, the spring mechanism may be damaged. Refer to “DIMM
Lever Kit” in this chapter.
• If the lever is stuck in a completely closed position (recessed underneath the bottom
case), use a wooden pencil to gently pry it out, as shown below.

4.Holding the memory cards by the corners, slide them out from the battery bay.
Important: Do not touch the gold connectors. Handle the card only by its edges.
Replacement Procedure
1.Align the memory card so that the gold connectors face the slot and the notch is on the left.
(The chip side of the board faces down.)

2.Use two fngers to push frmly on the edge of the memory cards. If there is a tight ft,
installing the cards may take some force to ensure that they are fully inserted.

Important: When the cards are fully inserted, the edges of the cards are nearly hidden, as
shown by the recessed card on the right in the image below.

3.If the levers do not return to the closed position, move them to close them.
4.Reassemble and test the computer.
5.Make sure the computer recognizes the new memory by opening System Profler, clicking
More Info, and clicking Memory.
Removing a Stuck Memory Card
If a lever becomes inoperable and does not eject a memory card, you must remove the top case
to access the stuck memory card. Follow this procedure only if the memory card is stuck and
cannot be ejected by using the lever.
1.Follow the “Top Case” procedure in this chapter to remove the top case.
2.Notice the eject bars on each side of the memory card carrier. Use a black stick to push and
slide the eject bar down the side of the carrier.

3.Repeat step 2 on the other side of the memory card carrier until the memory card pops out.
Hard Drive
Tools
- ESD wrist strap and mat
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
Part Location
Procedure
1.If the hard drive pull-tab is tucked in, use a black stick to unroll it.


2.Pull the tab straight out to slide the drive out from the rubber rails in the battery bay.

3.Hold the drive only by the sides when removing and replacing it.

4.Install the replacement hard drive, and reassemble and test the computer.
Important: After a new hard drive replacement, you must update the operating system to
Mac OS X version 10.4.6 or later.
Replacement Note: If you are installing the hard drive while the top case is of, make sure
the two bottom case spring guides are aligned with the notches in the bottom case. The
image below shows the top spring centered and the bottom spring of center.
Top Case (with Keyboard)
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Magnetic Phillips #00 screwdriver (preferably with a long handle)
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
- Access card (Apple part number 922-7172) to open the top case
- Clean, soft, lint-free cloth
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
Part Location
Procedure
Caution: To prevent scratches or other cosmetic damage to the computer housing, use a soft
cloth as a protective layer when removing and installing the external screws.
1.With the computer upright, remove the two identical 5.5-mm long shoulder screws from the
right side of the computer.
Replacement Caution: When installing these top case screws, do not press on the area over
the slot drive. The slot-drive bezel could be damaged with too much pressure.

2.Important: Notice the two screws at the left side of the computer. Although they can be
removed, they exist for cosmetic purposes only and do not require removal. If they are
removed, however, be sure to reinstall the two identical 3-mm long shoulder screws at
the corner near the ports. Do not use longer screws.

3.At the back of the computer, remove the four #0 Phillips screws (two at each side) near the
display hinge--
• Two 12-mm long shoulder screws that are closest to the hinge
• Two 8-mm long shoulder screws at the back corners of the computer

Turn over the computer, and on the outside of the bottom case, remove the three #0 Phillips
screws:
• Two 14-mm long screws near display hinge
• One 11-mm long at center of bottom case
Replacement Caution: Do not put one of the longer screws in the center screw hole or it
will damage the logic board.

Replacement Caution: When installing the three bottom case screws, install them in the
order shown.

5.Notice the long row of #0 Phillips screws at the front edge of the battery bay.
6.Important: Remove only the four screws shown. Remove the 3-mm long identical screws as
follows:
Starting at the corner closest to the battery connector, skip the frst screw, then remove the
second, fourth, seventh, and ninth screw.
Tip: To help remember the screw sequence, think of it as “2, 4, 7, 9 loosens the top case every
time."

7.In the battery bay, remove the two 6-mm long identical screws that are on both outer sides
of the battery connector. Do not remove the two screws that are closest to the battery
connector.

8.In the battery bay, use a long-handled screwdriver to remove the three #00 Phillips screws at
the inner edge of the battery bay near where the RAM slots are located:
• Two identical 3-mm long screws
• One longer 4.5-mm long screw at the corner of the battery bay nearest the battery
connector

Because this is a recessed area, the screwdriver has to go in at an angle. Keep the screwdriver
in line with the screw head as much as possible.
Replacement Caution: When installing these three screws, an incorrect installation could
cause the reassembled computer to wobble in use. To prevent a wobble symptom, use light
pressure to hold the top case onto the assembly when installing the screws.
9.Open the display to a 90-degree angle or wider.
10.Warning: Inserting a tool too far or performing this step too quickly could break some of the
snaps that secure the top case. Be especially careful with the left front corner of the top case.
Starting at the left corner and working in a counter-clockwise direction, use an access card
tool to open the gap along the front of the top case, around the perimeter, and to the right
side above the optical drive slot.

11.With the top and right side gap opened, tilt up—but do not remove—the right edge of the
top case. This motion releases the remaining snaps between the top case and bottom case,
and the slot-load bezel clips become loose as the top case is tilted up.

12.Raise up the top case so you can see where the folded trackpad fex cable attaches to the
logic board.

Late 2006 Model:

13.Use the fat end of a black stick to reach in and disconnect the trackpad cable.

For the Late 2006 model, use the pull-tab to disconnect the trackpad cable.

14.Lift the top case up and away from the computer assembly.
Late 2006 Model:

15.Refer to the following notes to install the replacement top case, and reassemble and test the
computer.

Replacement Note: The top case includes heatstaked keyboard, webbing, EMI shield, a small
rectangular foam pad, and attached trackpad cable.
Replacement Note: Before replacing the top case, make sure to connect the trackpad fex
cable to the logic board.

Replacement Caution: If any of the four bezel clips at the slot-load bezel come loose, simply
insert them back in the slots. Make sure they are in place while reassembling the computer
and before installing the top case. Install the right side of the top case frst (near the disc
bezel) to lock the bezel clips and prevent any of the clips from becoming loose inside the
computer.

Replacement Note: Install the right side of the top case frst (near the disc bezel). Then
starting from the right, secure the snaps by pressing along the outer edge of the top case in
a clockwise direction around the front and left side of the top case.
Replacement Caution: When installing the exterior screws and the battery bay screws, apply
light pressure to the top case to ensure that the top case fts to the bottom case without any
gaps.
Replacement Note: Pinch the top case to the bottom case as you secure the screws.

Replacement Note: When installing the screws at the rear corners of the bottom case, insert
an access card tool between the top case and the display to maintain light pressure as the
screws are tightened.
Trackpad Cable (Late 2006 Model Only)
Tools
- ESD wrist strap and mat
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case
Part Location
Procedure
1.Place the top case (keyboard side down) on a clean surface.
Replacement Note: Refer to the following image when attaching a replacement trackpad
cable. The folds in the cable and the areas that adhere to the top case should appear as
shown.

2.Use a black stick to start to peel up the clear strip of tape.

3.Hold the trackpad cable in place as you peel up—but do not remove—the tape.

4.Peel up the mylar shield that protects the trackpad circuitry.

5.Caution: The trackpad cable locking lever at the top of the connector is fragile. Use a black
stick to carefully tilt up the lever until it is vertical (as shown by the detailed image on right).
Replacement Note: When locking the trackpad cable lever, make sure it is completely
closed, as shown by the detailed image on left below.

6.With the cable locking lever open, pull the cable down to remove it from the connector.
7.Carefully peel up the trackpad cable from where it adheres to the underside of the top case.

8.Install the replacement trackpad cable, and reassemble and test the computer.
AirPort Extreme Card
Tools
- ESD wrist strap and mat
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
- Magnetic Phillips #0 screwdriver
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
Part Location
Procedure
1.Remove the 8.5-mm long screw (that also functions as the left speaker cable ground pin)
from the upper right corner of the board. (The thick head on this screw helps identify it.)
2.Remove the 3-mm long screw from the upper left corner of the board.

3.Pull the card up slightly and out of the card socket on the logic board.

4.Use a black stick to move aside the speaker cable.
5.Disconnect the two cables from the AirPort Card. Note that the black cable is on the left and
the gray cable is on the right.
Tip: To remember the cable locations, think “Left = bLack; Right = gRay.”

Late 2006 Model: This model has three antenna cables. Disconnect the black, blue, and gray
cables.

6.Install the replacement AirPort Card, and reassemble and test the computer.
Replacement Note: If the computer model that you are servicing includes tape over the
antenna cables, reapply the tape where shown.

Late 2006 Model Replacement Note: Notice that the AirPort Card has numbers 2, 1, and 0
printed on the card. The numbers correspond to the antenna cable colors where 2 = black,
1 = blue, and 0 = gray.

Replacement Caution: When connecting the AirPort antenna cables, make sure the cables
do not obstruct the gold-colored spring on the logic board. If one of the cables were caught
in the folds of the spring, the cable or spring could be damaged when the top case was
installed.
MagSafe DC-In Board
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
Part Location
Procedure
1.Place a black stick under the DC-in connector cables to help disconnect the connector, then
pull the connector away from its connection on the logic board. (Note: Although the cables
are solid black on the Late 2006 model, the steps are the same.)

2.Remove the 3-mm long screw from the MagSafe DC-in board.

Caution: The DC-in port is magnetic. Be careful that it doesn’t pick up screws or other small
parts.
3.From the port side, use a black stick to help tilt up the MagSafe DC-in board and remove it
from the logic board.

Replacement Note: Make sure the folded side of the EMI shield fts over the I/O frame rib so
that the rib is sandwiched between the fanges of the EMI shield.
Replacement Note: If installing a new MagSafe DC-in board, frst peel of the protective
membrane from the MagSafe DC-in board. Then connect the DC-in cable to the connector
on the logic board, and insert the board into the upper left corner of the bottom case. Finally,
install the screw.
4.Install the replacement MagSafe DC-in board, and reassemble and test the computer.

Replacement Note: Check that there are no bent EMI fngers on the shield covering the port
area.

Replacement Note: Check the port side of the bottom case to make sure the MagSafe DC-in
port is level with the port opening.
Left Speaker
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
Part Location
Procedure
1.Disconnect the speaker cable from the logic board.
2.Remove the 8.5-mm long ground screw at the upper right corner of the AirPort Extreme
Card. 
3.Route the cable underneath the AirPort cables.

4.Remove the 6-mm long speaker screw.

5.Pull up on the speaker cable to remove it from the frame.
6.Pivot up the speaker from the left corner.

7.Route the speaker cable underneath the DC-in cable.

8.Install the replacement speaker cable, and reassemble and test the computer.
Replacement Note: To prevent a pinched cable, make sure the cable is routed as shown.

Battery Connector with Sleep Switch
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
Part Location
Procedure
Caution: Do not touch the raised section of the sleep switch connector. It is fragile and could
break.

1.Remove the two 4.5-mm long shoulder screws from the frame at the battery connector.

Replacement Caution: Make sure the screws are the proper length. A longer screw could
damage the board.
2.Tilt up the battery connector end of the board.

3.If provided, remove the single screw that secures the battery cable clip to the I/O frame.

4.Tilt up the battery cable clip, and remove it from the computer assembly.

Replacement Note: Be sure to install the battery cable clip when reassembling the
computer.

5.Caution: Do not touch the raised section of the sleep switch connector. It is fragile and could
break. Using a black stick, insert it under the cables, and lift up the connector from the logic
board.

Replacement Note: To avoid bending the pins on the sleep switch connector card, make
sure you squarely align the pins over the logic board and keep the connector card level
when installing it. Install the “pins” end of the sleep switch connector frst; then install the
battery connector and screws.

6.Install the replacement battery connector with sleep switch, and reassemble and test the
computer.
Caution: To avoid pinching the cable, the battery connector cable must be properly
tucked into the cable channel, as shown by the image on the left, below:


Replacement Note: Check that the battery connector can be wiggled to allow for
movement of the battery. If the connector is completely still when grasped, loosen the
screws slightly.

Hard Drive Connector
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Hard drive
- Top case with keyboard
Part Location
Procedure
1.Remove the two 6-mm long screws from the hard drive connector at the right front side of
the computer.

2.Carefully lift up the hard drive connector from the bottom case. This action automatically
disconnects the hard drive board from the sleep LED/IR receiver fex cable.

Replacement Caution: Note the tiny connector at the end of the hard drive board. It
connects to the sleep LED/ IR receiver board at the front right corner of the computer via a
tiny fex cable. To reinstall the fex cable, frst peel up the end of the snubber to access the
length of the fex cable. Carefully peel up the fex cable from its adhesive. Using a black stick,
tilt up the tiny fex cable at the right corner. Insert it into the connector on the hard drive
board, and fold down the tiny locking lever on the connector. Without straining the
connection, carefully tilt the hard drive board into place in front of the snubber.


3.Pull up the hard drive connector cable that runs along the bottom edge of the optical drive.
Note the three cable routing guides when reinstalling the cable.

4.Use the two pull tabs to disconnect the optical drive fex cable and the LVDS cable.

5.Use the pull tab to disconnect the hard drive connector cable.

6.Route the hard drive connector cable under the black cables.

7.Install the replacement hard drive connector, and reassemble and test the computer.

Fan
Tools
- ESD wrist strap and mat
- Magnetic Phillips #00 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
Part Location
Procedure
1.Peel up the strip of tape that overlaps the fan near the optical drive.

2.Remove the screws from the fan:
• 6-mm long screw from the upper left
• 3-mm long screw from the upper right (normally hidden underneath the cable bundles)

3.Tilt up the fan and disconnect the fan cable from the logic board.

4.Holding the fan tilted up from the bottom case, peel away the adhesive foam that overlaps
the fan and the heatsink.
Replacement Note: Because the foam strip tears easily, be sure to install a new strip of
adhesive foam before reassembling the computer.

5.Install the replacement fan, and reassemble and test the computer.
Replacement Note: Make sure the cables are fully tucked in the channel between the fan
and the optical drive. Reapply the tape or apply new tape.
Heatsink
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
- Alcohol wipes
- Thermal grease syringe (Apple part number 922-7144)
- Felt-tip pen (optional)
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
- Fan
Part Location
Procedure
1.Remove the four identical 8-mm long screws from the heatsink.

Note that the screw at the lower right corner anchors a fexible ground tab for the speaker
cable that runs along the top of the RAM card carriers. Make sure the tab is sandwiched
between the heatsink and the screw when it is reinstalled.

2.Starting at the lower bracket of the heatsink, start to tilt it up to loosen it from the logic
board.

3.Holding the heatsink by its edges, tilt it up and disconnect the two thermistor connectors
from the logic board.

Replacement Caution: When installing the heatsink, make sure its two thermistor cables are
routed as shown to prevent cable damage.

Replacement Note: Make sure you install the thermal sponge over the two thermistor
connectors.

4.Important: Anytime the heatsink is removed (even if it is to replace another module), check
the thermal grease as described in the following section.
Checking the Thermal Grease
Warning: Whenever the heatsink is separated from the logic board (even if you are
installing the same heatsink or board), the thermal grease must be checked and possibly
replaced. Failure to do so can cause the computer to overheat and be damaged.
1.With the heatsink removed, check the underside of the heatsink:
• If it has a thin sheet of transparent flm covering the square heatsink pads and pre-
applied thermal grease, then you do not need to reapply thermal grease. Do not remove the
thin flm. Skip step 2 and go to step 3 to clean up any excess thermal grease that might have
squeezed out onto the chips. Then go directly to step 8. 
• If you are installing a new heatsink and it is packaged with clear, rigid plastic, remove the
clear plastic from the heatsink plate. Because the heatsink includes pre-applied thermal
grease, skip step 2 and go to step 3. Then go directly to step 8.

• If the thermal grease is directly on the heatsink pads (as shown in step 2), continue with
the remaining steps in this procedure.
2.Caution: This step is required only when the heatsink and logic board are removed to
replace a later part (such as the bottom case) and the same heatsink and logic board
will be re-installed in the computer.
Use a black stick to remove as much thermal grease as possible from the two chips on the
logic board and the two pads on the heatsink.

3.Use an alcohol wipe to completely clean the residual thermal grease from the two chips. (If
you are replacing the logic board with a new one, skip this step.)
Important: Use extreme care not to damage the logic board components.

4.Use an alcohol wipe to completely clean the two pads on the heatsink.

5.Caution: The syringe steps for this procedure are required only when the heatsink and
logic board are removed to replace a later part (such as the bottom case) and when no
new heatsink with pre-applied thermal grease will be installed. Refer to the heatsink
conditions in step 1 for details before attempting to replace the thermal grease.
Note the contents of the syringe of thermal grease.
Important: One syringe (922-7144) contains 0.3 to 0.35 cubic centimeters (cc) of thermal
grease. That is enough for 0.1 to 0.12 cc of grease per chip for up to three chips. Because this
computer has only two chips, the last 1/3 of thermal grease remains in the syringe. Use one-
third of the syringe contents per chip. Using a felt-tip pen, mark the 1/3 points on the syringe
before applying the frst dab.

6.Using the syringe, put a 0.1 to 0.12 cc dab of thermal grease, in the center, on the mating
surfaces of both chips, as shown below. Apply the grease only up to the line that you marked
on the syringe.
Important: Use one-third of the syringe contents per chip, so in this case, 1/3 of the thermal
grease will be left in the syringe when you are done. Although the amount shown appears
to be plenty of grease, this is the correct amount that has been tested and verifed on the
production line.
Important: Avoid unnecessary contact with new thermal material, as dirt and body oils
reduce the material’s conductivity.


7.While centering the heatsink pads over the two chips, lower the heatsink onto the logic
board and press on the areas where the screw brackets on the heatsink meet the standofs
on the board. Make sure the heatsink is level on the board before installing the screws.

8.Install the heatsink (using the screw sequence shown below), and reassemble and test the
computer.
Note: Make sure the heatsink includes the gray, adhesive sponge strip that sticks to and runs
along the top of the copper pipe. (A new heatsink kit includes the gray strip, ready for
installation.)

9.Replacement Note: If you replaced the heatsink from a kit that includes the thermal sponge,
install the thermal sponge over the two thermistor connectors.
- Make sure the connectors are fully seated.
- Remove the adhesive backing from the sponge, and place the sponge adhesive side
down over the two connectors.
- Make sure the sponge sticks to and completely covers both connectors. (The actual
color and appearance of the sponge may vary slightly from what is included in the kit.)
Comparing Heatsinks
The heatsink referred to as a 1.2 mm heatsink can be identifed by the number 607-0142 on its
label and its thin rectangular thermistor connectors. Order Apple part number 076-1242 (which
includes the heatsink, thermal tape, and sponge) to replace a 1.2 mm heatsink.

The heatsink referred to as a 1.0 mm heatsink can be identifed by the number 607-0199 on its
label and its thick square thermistor connectors. Order Apple part number 076-1243 (which
includes the heatsink, thermal tape, and sponge) to replace a 1.0 mm heatsink.
Bluetooth Holder
Important: The Bluetooth holder is included with a replacement optical drive and should not be
removed unless it is damaged or no longer sticks to the optical drive housing.
Tools
- ESD wrist strap and mat
- Any standard size CD or DVD disc Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
Part Location
Procedure
1.Insert a CD or DVD disc half way into the slot drive to help support the drive and prevent
damage. 
2.Use a black stick to slide out the Bluetooth board from its holder.

3.Warning: To prevent damage to the optical drive, do not touch or press anywhere else
on the drive.
4.Use a black stick to carefully pry up the Bluetooth holder from the top of the optical drive.
Make sure you use as little pressure as possible to prevent damage to the drive.

Replacement Note: Peel of the adhesive backing from the Bluetooth holder and apply it to
the drive where shown. Press the holder lightly to make sure it adheres to the drive.

5.Install the replacement Bluetooth holder, remove the optical drive disc, and reassemble and
test the computer.
Optical Drive
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
Part Location
Procedure
1.With the computer assembly on a clean, scratch-proof surface, locate the Bluetooth board
and holder. Note that the Bluetooth holder stays with the drive and is included with a
replacement optical drive.
Late 2006 Model:

2.Tilt up the Bluetooth board from the upper right corner of the optical drive.

3.Disconnect the optical drive fex cable from the logic board.

4.Peel up the tape from the optical drive.

5.Carefully lift up or move aside the cables to remove the single 5.5-mm long screw at the
mounting bracket. You might frst need to disconnect the ground screw by the speaker to
loosen the cables and access the mounting bracket screw.

6.Use a black stick to slide the mounting bracket forward (away from the body of the drive and
toward the fan) to disengage it.


7.Slide out the hard drive, and set it aside.

8.Access the two identical 3-mm long screws along the bottom edge of the drive at the hard
drive snubber. (If the snubber is blocking one of the screws, carefully peel up the snubber.)

9.Lift up the cable that runs between the drive and the snubber at the lower edge of the
optical drive.

10.Warning: Handle the optical drive at the side edges only. Do not touch or press
anywhere else on the drive.
11.Grasp the optical drive fex cable and use it as a pull tab as you tilt up the optical drive. Be
careful where it can catch on cables.

Replacement Note: Make sure the mounting bracket on the optical drive is pushed in
before placing the optical drive in the bottom case.

Replacement Note: Reverse the screw order: install snubber screws frst.
Replacement Note: If you are installing a replacement drive, check that it includes the
following:
• Bluetooth holder
• Sliding bracket and two screws
• Cable guide rail
Replacement Note: If you are installing a replacement drive, check that the sliding bracket
that is secured with two screws slides easily and is not too tight. If it is too tight, loosen the
screws just enough so the bracket slides with ease.

Note: For correct cable routing, refer to the image below:

12.Before installing the optical drive, make sure the cables on the bottom case are routed as
shown.

13.Install the replacement optical drive and reassemble and test the computer.

Late 2006 Model: (The blue tape is for controlling vibration; do not remove the tape)

Important: For best performance after a new optical drive replacement, be sure to update
the operating system to the latest Mac OS X version.
Optical Drive Cable
Tools
- ESD wrist strap and mat
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Top case with keyboard
- Optical drive
Part Location
Procedure
Warning: Handle the optical drive at the side edges only. Do not touch or press anywhere
else on the drive.
1.With the optical drive on a clean, scratch-proof surface, use a black stick to evenly pry up the
cable connector from the drive.

Late 2006 Model:
Carefully pry up the thin strip of black tape that overlaps the optical drive cable. Then pry up
the connector from the drive.

2.Remove the optical drive cable.

3.Install the replacement optical drive cable, and reassemble and test the computer.

Note that both sides of the cable have an adhesive mesh strip.
I/O Frame (with upper EMI shield)
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Memory cards
- Top case with keyboard
- MagSafe DC-in board and
- AirPort Card
- Left speaker
Part Location
Procedure
1.At the left side of the computer assembly, remove the screws from the I/O frame:
• Two identical 7.5-mm long screws (one at each end)
• One 9.5-mm long screw in the middle

Replacement Note: If the I/O frame screw that is closest to the battery connector secures a
battery cable clip, the screw length is 8 mm, not 7.5 mm.

2.Note how the EMI shield on the I/O frame interlocks with the shield over the ports.
3.Tilt up the I/O frame to remove it from the computer assembly.

Note that the I/O frame includes the EMI shield. Be careful not to bend the shield as you
remove or install it.

4.Install the replacement I/O frame, and reassemble and test the display.

Replacement Note: If the I/O frame screw that is closest to the battery connector secures a
battery cable clip, be sure to reinstall the cable clip and screw.
Logic Board
Tools
- ESD wrist strap and mat
- Magnetic Phillips #0 screwdriver
- Black stick (Apple part number 922-5065) or other nonconductive nylon or plastic fatblade tool
- Stack of books, weighted boxes, or other means of support for display while removing and
replacing left clutch block
- Alcohol wipes
- Thermal grease (Apple part number 922-7144)
- Felt-tip pen
Preliminary Steps
Before you begin, remove
- Battery
- RAM door
- Memory cards
- Top case with keyboard
- AirPort Extreme Card
- MagSafe DC-in board and cable
- Left speaker
- I/O frame with upper EMI shield
- Fan
- Heatsink
Part Location
Procedure
1.Disconnect the optical drive fex cable from the logic board.

2.Without straining the optical drive fex cable, note the position of the LVDS cable beneath it.
Pull the pull-tab to disconnect the LVDS cable from the logic board.

3.Locate the Bluetooth antenna cable at the edge of the logic board, and disconnect the
Bluetooth antenna cable. Pull the pull-tab to disconnect the hard drive cable connector.

4.Remove the 3-mm long screw next to the lower end of the midframe.

5.Remove the 3-mm long screw located between the memory card carriers, and disconnect
the following cables:
• sleep switch connector (use a black stick to raise up and disconnect it)
• microphone cable
• left speaker cable
• subwoofer/right speaker cable

6.Place a heavy box behind the display to help support it (refer to “Clutch Block, Left” for more
details). Disconnect the inverter cable, and remove the following screws:
• 10-mm long thick-stemmed outer screw, closest to the left corner of the bottom case
• 6-mm long thick-stemmed middle screw
• 6-mm long thin-stemmed inner screw, closest to the antenna cables
• 3-mm long screw from the upper right area of the board.

7.Remove the left clutch block and clutch cap, and move aside any cables that overlap the
logic board.
Note: Disregard the cable assembly state shown in the image below.
Replacement Note: When reinstalling the clutch block, refer to “Clutch Block, Left” in this
chapter.

8.Holding the logic board by its right side, tilt it up and with a small rocking motion, remove it
at an angle away from the I/O ports. You might fnd it helpful to use a black stick between
the side of the bottom housing and the ports.

Replacement Note: When replacing the logic board, make sure all cables are kept clear of
the board, and the I/O shield is securely positioned along the ports. Use a black stick, if
necessary, to slightly fex the port side of the bottom case to install the logic board.

9.If you are installing a new logic board, transfer the following parts to the replacement board:
• Backup battery on the underside of the logic board (Refer to Backup Battery in this
chapter)

• Tape at the edge of the board between the inverter connector and the large chip
• AirPort Extreme Card
• Memory cards
• I/O shield

10.Before installing the logic board, make sure the gold-colored spring located beneath the
inverter cable connector is intact (not bent or broken).

11.Before installing the logic board, check the locator pins on the bottom case. Make sure the
two openings in the logic board ft over the “+-shaped” locator pins.

12.Warning: Whenever the heatsink is separated from the logic board (even if you are
installing the same logic board or heatsink), the thermal grease must be checked
and possibly replaced. Failure to do so can cause the computer to overheat and be
damaged. Refer to “Checking the Thermal Grease” in the Heatsink section.





































