Apple iBook G4 14 mid05 Service Manual

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Service Source

iBook G4 (14-inch Mid 2005)

Updated September 9, 2005

© 2005 Apple Computer, Inc. All rights reserved.

Service Source

Take Apart

iBook G4 (14-inch Mid 2005)

© 2005 Apple Computer, Inc. All rights reserved.

General Information

Overview

To distinguish this computer from previous iBook models, note these characteristics:

Mac OS X version 10.4 operating system

Sudden Motion Sensor (SMS)

512 MB RAM standard on all configurations

No more CD ROM on any configuration

Built-in AirPort Extreme and Bluetooth combined on one card

General Information

iBook G4 (14-inch Mid 2005) Take Apart - 2

Important: The only noticeable physical difference between this model and the earlier G4 model is the appearance of the foot sockets. Check the foot sockets on the bottom case to see this difference. For this model, the foot sockets are uniformly flat with no "dimples."

However, the foot sockets are compatible with earlier models, so this physical difference is not an absolute indicator of the model type. Be sure to confirm the model type using serial number verification.

iBook G4 (Early 2004): Foot sockets include three "dimples"

iBook G4 (Late 2004 and Mid 2005): Foot sockets are uniformly flat

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General Information

The ports on the left side of the computer are the same as the previous G4 model:

RJ11 modem port

Ethernet port

FireWire port

Two USB ports

External display connector

Headphone port

This table shows the product configurations at initial product introduction:

Configuration

Good*

Best

 

 

 

Display Size

12.1 inch

14.1 inch

 

 

 

Video RAM

32 VRAM

32 VRAM

 

 

 

Processor

1.33 GHz

1.42 GHz

 

 

 

Optical Drive

Combo (DVD-ROM/CD-RW)

SuperDrive

 

 

 

Hard Drive

40 GB Ultra ATA

60 GB Ultra ATA

 

(60, 80, or 100 GB CTO)

(80 GB or 100 GB CTO)

 

 

 

Memory

512 MB RAM built in

512 MB RAM built in

 

(up to 1.5 GB DDR 333

(up to 1.5 GB DDR 333

 

SDRAM CTO)

SDRAM CTO)

 

 

 

AirPort Extreme/

card installed

card installed

Bluetooth

 

 

 

 

 

Sudden Motion

yes

yes

Sensor (SMS)

 

 

 

 

 

* For servicing the 12.1-inch model, refer to the iBook G4 (12-inch Mid 2005) service manual.

Procedures

If you are familiar with taking apart iBook G4 computers, you will notice some service differences with this iBook model:

AirPort and Bluetooth functions are combined on one card that is located under the top shield.

The procedures for the RAM shield, cables, hard drive, reed switch, and heatsink differ somewhat from earlier models.

The number and types of screws differ somewhat from previous models.

General Information

iBook G4 (14-inch Mid 2005) Take Apart - 4

Note: The top and bottom EMI shields are marked with screw identifiers for most of the screw locations. The screw identifiers are in the form of "M2x_" where the last digit indicates the approximate screw length. For example, a marking of "M2x3" indicates a 3.5- mm long screw. Use the identifiers as a guide when reassembling the computer.

Tools

The following tools are recommended for the Take Apart procedures:

Coin

ESD wriststrap and mat

Pin

Magnetized #0 Phillips screwdriver

Jeweler’s flat-blade screwdriver

Soft cloth

Torx T8 screwdriver

2.0-mm hex driver

#4 hex nut driver

Needlenose pliers

Torx T6 screwdriver

5/32 hex driver

Black stick (or other nonconductive nylon or plastic tool)

Note: To organize the screws you remove from the assembly, use a tray with divided compartments (such as a plastic ice cube tray).

Serial Number Location

In this computer, the product serial number is located in two places: the battery bay and the top case underneath the keyboard.

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General Information

Battery

Tools

The only tool required for this procedure is a coin.

Part Location

Preliminary Steps

Warning: Always shut down the computer before opening it to avoid damaging its 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.

Battery

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Procedure

Warning: If the computer has been recently operating, allow it to cool down before performing this procedure.

1.Place the computer on a clean, flat surface.

2.Shut down the computer and wait thirty minutes before continuing.

3.Disconnect the power cord and any other cables connected to the computer.

4.Close the computer, turn it over, and locate the battery latch.

Use a coin to turn the battery latch 1/4 turn clockwise to unlock the battery. Gently remove the battery.

Removing the battery will prevent you from accidentally turning on the computer.

Warning: Removing the battery before shutting down the computer may result in data loss.

5.Install the replacement battery.

6.Reconnect the power cord and any other cables that were connected and restart the computer.

Note: You may need to reset the date and time (using the Date & Time control panel in System Preferences).

Warning: Never turn on the computer unless all of its internal and external parts are in place and it is fully reassembled. Operating the computer when it is missing parts can damage the computer or cause injury.

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Battery

Foot and Foot Socket

Tools

Foot kit (for installing the replacement feet)

Soft cloth

Pin

Needlenose pliers

#0 Phillips jeweler’s screwdriver or black stick (or other nonconductive nylon or plastic tool)

Caution: To avoid scratching the case, use caution when using tools to remove and replace the foot and foot socket.

Part Location

Foot and Foot Socket

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Preliminary Steps

Warning: Always shut down the computer before opening it to avoid damaging its 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

Caution: To avoid scratching the case, use caution when using tools to remove and replace the foot.

1.Place the computer on a clean, flat surface or soft cloth.

2.Use a pin in the area shown to wedge the rubber foot off of the socket.

Note: If a portion of the rubber foot remains on the bottom case, use tweezers or needlenose pliers to carefully remove it.

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Foot and Foot Socket

3.Use a screwdriver to remove the screw and socket from the bottom case.

4.Repeat for the remaining two feet if you are replacing them or removing the bottom case.

Foot and Foot Socket

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Replacing the Feet and Sockets

1.Install the new socket. For the best fit, do not reuse the old socket.

Replacement Note: When replacing the socket, notice the wedge area on the bottom of the socket and the matching wedge area in the bottom case. Position the socket in the bottom case to align the wedge areas. You might need to rotate the socket slightly until it sits flat into the bottom case.

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Foot and Foot Socket

2.With the socket sitting flat in the bottom case, install the screw.

3.Before installing the replacement foot, check the shape. The socket and foot are keyed:

The socket has three identical openings and a fourth indented area.

The foot has three identical raised areas and a fourth smaller raised surface.

4.Install the matching foot by aligning it to the matching areas in the socket. With gentle even pressure, press the foot onto the socket.

5.Reassemble and test the computer.

Foot and Foot Socket

iBook G4 (14-inch Mid 2005) Take Apart - 12

Keyboard and RAM Shield

Tools

#0 Phillips screwdriver

Jeweler’s flat-blade screwdriver (if keyboard is locked)

Small soft cloth

Part Location

Preliminary Steps

Before you begin, remove the battery.

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Keyboard and RAM Shield

Procedure

1.Raise the display so you can access the keyboard.

2.Make sure the keyboard locking screw, located in the small plastic tab next to the Num Lock key, is not in the locked position. The iBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step.

To unlock the keyboard, turn the screw 1/2 turn.

Keyboard and RAM Shield

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3.Release the keyboard by pulling down on the keyboard release tabs (located to the left of the F1 and F12 keys), then lift the top portion of the keyboard up slightly, and toward the display.

4.Flip the keyboard over and lay it on the palm rest.

Note: Two magnets under the keyboard help anchor it in place, so you might feel resistance when you tilt it up.

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Keyboard and RAM Shield

5.Touch a metal surface on the inside of the computer to discharge any static electricity, as shown.

Important: To avoid electrostatic discharge damage, always ground yourself by touching the computer’s framework before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed the installation and closed the computer.

6. Loosen the four captive screws that secure the RAM shield.

Keyboard and RAM Shield

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7. Lift the RAM shield out of the computer.

8.Locate the keyboard cable connector.

9.Firmly grasp the cable, and carefully pull it straight up until the connector releases.

Important: Pull straight up; do not twist or pull the cable sideways.

Note: If necessary, use your fingers to pry up the connector from side to side.

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Keyboard and RAM Shield

10. Install the replacement keyboard and RAM shield.

Make sure the replacement keyboard is firmly seated:

Flip the keyboard back toward the keyboard opening in the case.

Hold the keyboard at a 45-degree angle above the keyboard opening, and insert the tabs on the bottom edge of the keyboard into the slot under the edge of the opening.

Important: Make sure that all the tabs are seated and that the keyboard rests flush against the edge of the opening.

Lay the keyboard flat into the keyboard opening.

Pull down on the keyboard release tabs and then press down on the top portion of the keyboard.

Keyboard and RAM Shield

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Memory Card

Warning: Memory cards come in various specifications. Only install memory cards that are approved for this computer.

Tools

No tools are required for this procedure.

Part Location

Preliminary Steps

Before you begin, remove the following:

Battery

Keyboard and RAM shield (but do not disconnect the keyboard cable)

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Memory Card

Procedure

1.Locate the installed memory card and brackets that secure the card on both sides.

2.Carefully spread the brackets away from the notches in the card until the card releases on each side.

3. Holding the card by the top corners, pull the card up and out of the memory slot.

Memory Card

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Apple iBook G4 14 mid05 Service Manual

4.Align the notch in the replacement memory card with the small tab in the memory slot. Hold the card at a 30-degree angle, then push the card into the slot until it is firmly seated.

Note: If you feel resistance when inserting the card, try pushing one side at a time.

5.Gently push the top of the card down until the brackets snap onto both sides of the memory card to lock it into place.

Warning: Apply gentle pressure to the memory card only. Pressing on nearby connectors or components can cause electrical damage.

6. Reassemble and test the computer.

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Memory Card

Bottom Case

Tools

Soft cloth

Torx T8 screwdriver or 2.0-mm hex driver

Black stick (or other nonconductive nylon or plastic tool)

#0 Phillips screwdriver

Jeweler’s flat-blade screwdriver

Part Location

Preliminary Steps

Before you begin, remove the battery.

Bottom Case

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Procedure

1.Place the computer upside down on a soft cloth.

2.Using a pin, pry up the three rubber feet from the metal sockets.

Important: When reassembling the computer, do not reuse the feet. Install three new rubber feet.

3.Remove the three identical Phillips screws from the metal sockets.

4.Use a black stick to lift out the metal sockets.

Note: When reassembling the computer, note that the metal sockets are keyed. Rotate them until they sit flat against the bottom case. Align the feet so that the keyed area on the feet match with the socket.

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Bottom Case

5.Important: To avoid damaging the case, be careful that the screwdriver tip does not slip out of the screw head during removal. Remove the three screws.

6. Remove the two identical 4.5-mm long Phillips screws next to the battery connector.

Bottom Case

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7.Note the locations of the slots on the bottom case pictured below. The computer frame has tabs that fit into slots within the bottom case (six tabs in front; two on each side; three in back). When using a black stick to pry off the bottom case, it helps to know where the slots are as you free the tabs from the slots.

8.Starting at the battery compartment, use a black stick to carefully pry up the bottom case from the computer.

9.Warning: To avoid damaging the sleep light and other delicate components, do not insert the black stick too far into the computer as you free the bottom case from the computer. Use just the tip of the black stick to pry up the bottom case.

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Bottom Case

10.Open the computer and place it on its side. Carefully work the black stick around the corners of the bottom case.

The bottom case fits snugly. Use moderate force to remove the tabs from the slots.

Bottom Case

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11.In the battery compartment, lift up the corner of the bottom case, and use a black stick or jeweler’s flat-blade screwdriver to gently pry up the slot from the inner tabs on the frame.

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Bottom Case

12.Note: For this procedure, a black stick works best. Loosen the tabs from the slot load area last.

Pull up on the port side of the bottom case.

Placing the black stick nearly parallel to the slot drive opening, carefully free the case from the remaining tabs at the slot drive side of the computer.

Note: When reassembling the computer, be careful not to pinch any cables as you press the bottom case back onto the computer. Check that the bottom case shows no raised surfaces and is fully snapped into place before installing the remaining screws, sockets, and feet.

Bottom Case

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13.If you are replacing any additional parts at this time, remove the two springs from the battery compartment so they do not fall out and get lost.

Note: When reassembling the computer, make sure that the two springs in the battery compartment are in place before installing the bottom case. Each spring has a plastic cap on one end. The cap should fit securely on the spring, and the curved side of the cap should be positioned against the inner frame. The springs have a small amount of grease on them; do not wipe away the grease.

14. Install the replacement bottom case, and reassemble and test the computer.

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Bottom Case

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