Apple powerbook g4 12 inch 1 33ghz User Manual

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 39
 Hard Drive3. Use the flex cable to lift up the hard drive, bracket, and cable from the computer 
housing.
4. Turn over the hard drive and remove the two screws from the underside of the drive. 

40 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 Hard Drive 5. Peel up the flex cable from its double-sided tape. 
6. Use a black stick to pry the flex cable connector up slightly on each side, and then pull 
it straight off the drive. Be careful not to bend any pins.
7. Remove the two screws and grommets from the opposite side of the drive.
8.Replacement Note: When installing the replacement drive, make sure the center 
flange of the hard drive bracket fits over the small post on the computer frame.
9....

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 41
 Modem
Modem
Tools
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
• Keyboard
• Top case 

42 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 Modem
Procedure
1.Warning: When removing the modem, be careful not to strain the modem cable 
or shield. Do not apply pressure to the modem. Read all of the procedure before 
removing and replacing the modem.
2. Remove the three identical screws from the modem board and shield.
3. Use a black stick to tilt up the modem and disconnect it from the logic board. 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 43
 Modem4. Tilt up the modem board and shield.
5. Disconnect the modem cable. 

44 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 Modem 6. Install the replacement modem, and reassemble and test the computer.
Replacement Caution:  
When placing the replacement modem on the logic 
board, be sure to align the board and shield over the modem connector on the 
logic board. 
Handle the modem by the edges only. When securing the modem to the 
logic board, press only on the rectangular area (highlighted in green in the following 
image) that is directly over the modem connector. 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 45
 DC-to-DC Board
DC-to-DC Board
Tools
This procedure requires the following tools:
• #0 Phillips screwdriver (magnetized preferred)
• Black stick (or other nonconductive nylon or plastic flat-blade tool)
• 4 mm socket wrench or needlenose pliers
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 

46 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 DC-to-DC Board
Preliminary Steps
Before you begin, remove the following:
• Battery
• Memory door and memory card
• Keyboard
• Top case
• Hard drive
Procedure
1. Disconnect the sleep light cable and the hall effect sensor board cable from the DC-to-
DC board. 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 47
 DC-to-DC Board2. Remove the screws from the DC-to-DC board.
Note:
 When removing the 4.5-mm long screw, the magnetic latch might draw the 
screw toward it. The 13.5-mm long screw has a hex head and requires a needlenose 
pliers or socket wrench to remove it.
Replacement Note:
 When replacing the DC-to-DC board, install the screws in the 
order shown.
3. Lift off the EMI strip from the battery connector. Be sure to replace it when installing 
the...

48 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 DC-to-DC Board 4. Place a black stick just under the top edge of the board. Do not lean the black stick on 
the modem board or optical drive. Disconnect the DC-to-DC board from the logic 
board by prying up the DC-to-DC board and removing it from the computer assembly.
5. Install the replacement DC-to-DC board, and reassemble and test the computer.