Apple powerbook g4 12 inch 1 33ghz User Manual

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 69
 Sleep Light
Sleep Light
Tools
This procedure requires the following tools:
• #0 Phillips screwdriver 
Part Location
Preliminary Steps
Before you begin, remove the following:
• Battery
• Memory door and memory card
• Keyboard
• Top case
• Hall effect sensor board and cable
• Hard drive
• Modem
• DC-to-DC board
• Heatsink with fan
• Inner frame (with RJ11 board attached) 

70 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 Sleep Light
Procedure
1. Remove the screw from the sleep light board.
2. Remove the board from the bottom case.
3.Replacement Note: Make sure the bottom case has the sleep light pipe installed 
before installing the replacement sleep light board.
4. Install the replacement sleep light board, and reassemble and test the computer. 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 71
 Logic Board
Logic Board
Tools
This procedure requires the following tools:
• #0 Phillips screwdriver 
• Black stick (or other nonconductive nylon or plastic flat-blade tool) 
Note: To organize the screws you remove from the computer, use a tray with divided 
compartments (such as a plastic ice cube tray).
Part Location
Preliminary Steps
Before you begin, remove the following:
• Battery
• Memory door and memory card
• AirPort Extreme Card, if installed
•...

72 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 Logic Board • Hall effect sensor board and cable
• Hard drive
• Modem
• DC-to-DC board
• Heatsink with fan
• Inner frame (with RJ11 board attached)
Procedure
1. Remove the two screws at the lower right edge of the board. 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 73
 Logic Board2. Holding the edges of the board tilt up the logic board.
3. While holding the board vertically, disconnect the DC-in connector cable from the 
underside of the logic board. 

74 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 Logic Board 4. Remove the side EMI shield from the I/O ports.
Warning:
 When installing the EMI shield over the logic board ports, make sure that 
the shield fits loosely and the ports are not obstructed.
Replacement Warning:
 If the shield is improperly installed, the EMI fingers 
at the mini DVI port can bend under and obstruct the port. Make sure the port 
is not blocked when installing the EMI shield and when installing the top case. 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 75
 Logic Board5. Install the replacement logic board, and reassemble and test the computer.
Replacement Note:
 Before securing the replacement logic board in the bottom case, 
make sure the white plastic wireless guide is fitted against the AirPort Extreme Card 
carrier in the bottom case. (The wireless guide requires no screws to hold it in place.)
Replacement Note:
 If you are reinstalling the same logic board, make sure 
you carefully remove the old...

76 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 DC-In Board
DC-In Board
This procedure requires the following tools:
• #0 Phillips screwdriver 
• Black stick (or other nonconductive nylon or plastic flat-blade tool) 
Part Location
Preliminary Steps
Before you begin, remove the following:
• Battery
• Memory door and memory card
• AirPort Extreme Card, if installed
• Keyboard
• Top case
• Hall effect sensor board and cable
• Hard drive
• Modem
• DC-to-DC board 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 77
 DC-In Board• Heatsink with fan
• Inner frame (with RJ11 board attached)
• Logic board
Procedure
1. Hold the DC-in board in place as you remove the screw that attaches the board to the 
bottom case.
Note:
 The screw might be hidden under the mylar sleeve at the lower corner of the 
board.
2. Pull the flat cable up from the adhesive on the bottom case.
3. Pull the board away from the side of the bottom housing. Use a black stick to lift up the 
board, if...

78 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 DC-In Board 4. Remove the round port liner.
5. Install the replacement DC-in board, and reassemble and test the computer.