Apple powerbook g4 12 inch 1 5ghz User Manual

PowerBook G4 (12-inch 1.5 GHz) Take Apart - 39
 Hall Effect Sensor Board and Cable
Procedure
1. Remove the screw from the hall effect sensor board. 
Warning:
 When replacing the board, make sure you use the same screw. A longer 
screw could scratch the optical media.
2. Tilt up the board, and free the cable from the cable routing guides along the lower  edge of the optical drive.
3. Lift up the tape, if provided, from the corner of the optical drive.
4. Disconnect the 3-pin connector from CN4 at the...

40 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 Hall Effect Sensor Board and Cable
Replacement Note:
 Make sure the cable is routed correctly in the cable guides 
along the lower edge of the optical drive. 

PowerBook G4 (12-inch 1.5 GHz) Take Apart - 41
 Hard Drive
Hard Drive
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 

42 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 Hard Drive
• Keyboard
• Top case
Procedure
1. Disconnect the hard drive 
flex cable.
2. Remove two screws from the hard drive bracket. 

PowerBook G4 (12-inch 1.5 GHz) Take Apart - 43
 Hard Drive 3. 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. 

44 - PowerBook G4 (12-inch 1.5 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 1.5 GHz) Take Apart - 45
 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 

46 - PowerBook G4 (12-inch 1.5 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 1.5 GHz) Take Apart - 47
 Modem 4. Tilt up the modem board and shield.
5. Disconnect the modem cable. 

48 - PowerBook G4 (12-inch 1.5 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 i\
n the following 
image) that is directly over the modem connector....