Apple powerbook g4 12 inch 1 5ghz User Manual

							PowerBook G4 (12-inch 1.5 GHz) Take Apart - 69
 Inner Frame 15. Remove the screws that secure the EMI strip to the frame. Transfer the EMI strip to the 
replacement frame.
16. Remove the screws from the fan. Transfer the fan to the replacement frame. (Refer to  Fan in this chapter.)
Replacement Note:
 Check that the replacement frame includes a thermal pad next 
to the fan, as shown by the blue rectangle in the following image.
17. Install the replacement frame, and reassemble and test the computer. 
						

							70 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 RJ11 Modem Board and Cable
RJ11 Modem Board and Cable
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
Important:  Compare the RJ11 modem board to the image shown below:
• If the RJ11modem board includes a ferrite bead, as shown, continue with \
this  procedure. 
• If the RJ11modem differs from this image, go to the next procedure, RJ1\
1 Modem  Board and Cable (with Filter Board). 
Preliminary Steps
Before you begin, remove the following:
• Battery
• Memory door and memory card
• Keyboard
• Top case 
						

							PowerBook G4 (12-inch 1.5 GHz) Take Apart - 71
 RJ11 Modem Board and Cable • Hall effect sensor board and cable
• Hard drive
• Modem
• DC-to-DC board
• Heatsink with fan
• Inner Frame
Procedure
1. With the inner frame removed from the computer, remove the tape that secures the 
RJ11 board and cable to the frame.
Replacement Note:
 Reapply the tape to the frame. Refer to the RJ11 cable routing 
in the images below.  
						

							72 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 RJ11 Modem Board and Cable
2. Remove the RJ11 board and cable from the frame. The board includes the attached 
cable and connector.
3. Secure the replacement RJ11 modem board and cable to the frame, and reassemble  and test the computer.
Replacement Note:
  Make sure the RJ11 modem board and cable are routed as 
shown before installing the frame. 
						

							PowerBook G4 (12-inch 1.5 GHz) Take Apart - 73
 RJ11 Modem Board and Cable Replacement Note:
  Make sure the RJ11 port and cable (with ferrite bead) 
are routed as shown before installing the top case. 
						

							74 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 RJ11 Modem Board and Cable (with Filter Board)
RJ11 Modem Board and Cable 
(with Filter 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
• Keyboard
• Top case
• Hall effect sensor board and cable 
						

							PowerBook G4 (12-inch 1.5 GHz) Take Apart - 75
 RJ11 Modem Board and Cable (with Filter Board) • Hard drive
• Modem
• DC-to-DC board
• Heatsink with fan
• Inner Frame
Procedure
1. With the inner frame removed from the computer, remove the tape that secures the 
RJ11 board and cable to both sides of the frame.
Replacement Note:
 Reapply the tape to the frame. Refer to the RJ11 cable routing 
in the images below.  
						

							76 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 RJ11 Modem Board and Cable (with Filter Board)
2. Remove the EMI shield from the RJ11 board. The board includes the attached cable 
and connector.
3. Secure the replacement RJ11 modem board and cable to the frame, and reassemble  and test the computer. 
						

							PowerBook G4 (12-inch 1.5 GHz) Take Apart - 77
 Fan
Fan
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
• Keyboard
• Top case
• Hall effect Sensor Board
• Hard drive 
						

							78 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 Fan
• Modem
• DC-to-DC board
• Heatsink
• Inner Frame
Procedure
1. With the inner frame removed from the computer, remove the three identical screws 
that secure the fan to the frame.
2. Note the routing of the fan cable in the channel of the frame. Replacement Note:
 Route the fan cable as shown. 
3. Secure the replacement fan to the frame, and reassemble and test the computer.