Apple iBook G4 ibkfw Service Manual

Service Source

iBook

iBook, iBook (FireWire)

Updated December 5, 2002

Service Source

T ak e Apart

iBook / iBook (FireWire)

Take Apart Tools - 1

Tools

Use the following tools for procedures in this chapter:

• Coin the size of a U.S. quarter (to remove battery door)

• 5 mm nut driver

• 4 mm nut driver (to remove sound board on iBook)

• Torx T8 screwdriver

• #0 Phillips screwdriver (for optical drive bezel screws)

• #1 Phillips screwdriver

• Very small jeweler’s flat-head screwdriver (for keyboard locking screw)

• Flat-blade tool, ESD-safe, non-marring (such as the nylon probe tool 922-5065)

• I C extractor (to remove display cable connector)

• Fine point needle nose pliers (to adjust handle tension)

Take Apart Cables - 2

Cables

Follow these guidelines when working with cables:

• Ensure that all cables are routed exactly as they were found when reassembling. Use all grooves and/or protrusions to align cabling. If the cable is improperly routed, you may not be able to reassemble the computer, or once reassembled, the computer may fail to function.

• Check that all cables are properly aligned in the connectors and that the connections are tight.

• Handle flex cables carefully. Using excessive force to disconnect a cable can tear or damage it so it will not work properly.

• Use a nylon tool or dental pick to help loosen cable connections.

Take Apart Battery - 3

Battery

Before you begin, unplug the AC adapter.

1. Use a coin to turn the battery door screws to the left a quarter turn. The screws will pop up but not come out all the way.

2. Remove the battery door and pull up on the plastic tab attached to the battery to remove it from the compartment.

Take Apart CD-ROM Bezel - 4

CD-ROM Bezel

Before you begin, remove the following:

• AC adapter

• Battery

1. Turn the computer over and press the manual disc eject button to eject the CD tray.

2. Use a #0 Phillips screwdriver to remove the small screw on the CD tray near the center of the bezel.

3. Carefully rotate t

as shown, to remove.

he bezel

Take Apart DVD-ROM Bezel - 5

DVD-ROM Bezel

Before you begin, remove the following:

• AC adapter

• Battery

1. Press the manual disc eject button to eject the DVD tray.

2. Use a #0 Phillips screwdriver to remove the three small screws shown here.

Replacement Note:

screw holes strip easily. Gently tighten the screws. Do not overtighten.

The

Take Apart DVD-ROM Bezel - 6

3. Turn the computer over.

4. With a non-marring flat-blade tool, carefully push where shown to release the tab catch.

5. Carefully pull the bezel straight off to remove.

Take Apart Keyboard and AirPort Card - 7

Keyboard and AirPort Card

Before you begin, remove the following:

• AC adapter

• Battery

1. Place a cloth on the palmrest to protect it from scratches.

2. Locate the two keyboard release tabs on the keyboard to the left of the F1 and F9 keys, and slide them toward you.

Take Apart Keyboard and AirPort Card - 8

3. If the keyboard does not pop up, it may be locked. Locate the keyboard lock screw (left of the num lock key) . Turn the lock a half turn in either direction until the tab slides out from under the top case.

4. When the keyboard pops up, move it slightly toward the display to release the tabs in the front.

5. Flip the keyboard over and lay it on top of the palmrest.

Take Apart Keyboard and AirPort Card - 9

6 Flip up the wire bracket,

and remove the installed AirPort Card from its connector. Disconnect the AirPort antenna coaxial cable.

Take Apart Keyboard and AirPort Card - 10

7. Remove the two Phillips screws on the right side of the RAM shield.

8. Pull up on the shield and remove it.

9. Pull up on the keyboard cable connector loop to disconnect the keyboard from the logic board.

Take Apart Memory Card (RAM) - 11

Memory Card (RAM)

Before you begin, remove the following:

• AC adapter

• Battery

• AirPort Card

• RAM shield (see Keyboard

and AirPort Card Take Apart procedure)

1. If a memory card is in the memory slot under the RAM shield, carefully spread the brackets apart on each side of the memory card until the card releases.

Take Apart Memory Card (RAM) - 12

2. Pull the memory card up and out of the memory slot.

3. To install the new memory card, line up the notch in the card with the small tab in the memory slot. Hold the card at a 30-degree angle and then push the card into the slot until it is firmly seated.

4. Then, gently push the card down until the two brackets on either side of the card lock into place.

Take Apart Top Case - 13

Top Case

Before you begin, remove the following:

• AC adapter

• Battery

• Keyboard

Note:

Use a clean padded

work surface.

1. Close the display and turn the computer upside down.

2. R emove the two long T8 screws near the handle.

3. Remove the four shorter T8 screws in the battery compartment.

Take Apart Top Case - 14

4. Press the manual disc eject button with the tip of a jeweler’s screwdriver or paper clip to eject the optical drive tray.

5. Remove the small Phillips screw in the top of the drive compartment.

Take Apart Top Case - 15

6. Leave the optical drive tray partly open and turn the computer r ight-side up and open the display.

Important:

brackets are extremely fragile. Do not move them or place pressure on them while prying up the top of the trackpad connector. Use extreme care.

Use an ESD-safe flatblade tool (using a fingernail might also work) to carefully pry up the top of the

The side

Take Apart Top Case - 16

trackpad cable connector, only enough to release the trackpad cable. Do not remove the connector.

8. R emove the three Phillips screws from the keyboard opening.

Take Apart Top Case - 17

9. With the optical drive tray open, push up on the underside of the top case while pushing out on the clear lip that holds the back right edge of the top case until the case pops open.

10.Work your fingers along the back seam and press out on the clear lip at the left edge until the top case pops open.

Take Apart Top Case - 18

11. At the front left corner, push in on the bottom front while pulling up on the top case.

12.Repeat this process at the front, right corner.

Important:

top case yet since the speaker wire is still connected to it.

Do not remove the

Take Apart Top Case - 19

13. Carefully rotate the top case up and rest it against the display, then disconnect the speaker cable.

Replacement Note:

the speaker cable, then engage the alignment ridges on the front of the bottom case to the front of the top case first, then lower the top case. Push firmly on the top edges of the top case until they snap into place.

Connect

Take Apart Optical Drive - 20

Optical Drive

Before you begin, remove the following:

• AC adapter

• Battery

• Keyboard

• Top case

1. Disconnect the optical drive cable from the logic board.

2. Remove the standoff on the left side of the optical drive with a 5 mm nut driver.

Take Apart Optical Drive - 21

3. Locate the two tabs on the front side of the drive carrier. Press on the plastic below the tabs and lift up on the inside of the drive compartment with your right hand until the carrier clears the tabs.

4. With the drive tray still open, tilt the drive assembly and lift it out of the bottom case.

Take Apart Modem - 22

Modem

Before you begin, remove the following:

• AC adapter

• Battery

• Keyboard

• Top case

Note:

The modem is located

under the foil modem shield.

1. Remove the Phillips screw holding the back of the modem shield. This screw is longer than the other shield screws.

2. Remove the Ph illips

Take Apart Modem - 23

screw holding the right side of the modem shield.

3. R emove the two Phillips screws holding the EMI fingers to the modem shield and lift the EMI fingers off.

Important: Replacement Note:

side of the EMI fingers makes contact, through the hole in the shield, with the metal on the corner of the modem.

4. Peel up the modem shield all around the front and side edges and push back.

Note:

wider at the left side, has a folded-over tab at the right back corner that must be peeled back, and has a larger cut out in front for access to a large Phillips screw that must be removed before removing the modem.

5. If removing a modem on an iBook (FireWire), remove

Do not pull on the EMI fingers.

Verify that the metal tab on the right

On the iBook (FireWire) the foil EMI shield is

Take Apart Modem - 24

the large Phillips screw attached to the computer’s framework near the right front edge of the modem.

6. Remove the Phillips screw on the left side of the modem board.

7. Check the modem cable connection to the modem. If it is not soldered, disconnect the modem cable.

8. Lift up on the right side of the modem to release it from its connector.

Take Apart Modem - 25

RRRReeeeppppllllaaaacccceeeemmmmeeeennnntttt NNNNooootttteeee:::: After replacing an international modem, use the Modem Country Selector utility to set the modem to the correct country.

Take Apart Display Assembly - 26

Display Assembly

Before you begin, remove the following:

• AC adapter

• Battery

• Keyboard

• Top case

• Modem

1. Disconnect the inverter cable connector from the logic board and deroute the cable from the logic board EMI shield and the guides on the center right clutch cover.

2. Remove the tape from the antenna coaxial cable

+ 65 hidden pages