Apple powerbook g4 12 inch User Manual

PowerBook G4 (12-inch) Take Apart - 69
 Inner Frame: PowerBook G4 (12-inch)18. Install the replacement frame, and reassemble and test the computer.
Replacement Note:
 When installing the replacement frame, note the initial routing of 
the cables, as shown in the following images: 

70 - PowerBook G4 (12-inch) Take Apart
 Inner Frame: PowerBook G4 (12-inch DVI)
Inner Frame: PowerBook G4 
(12-inch DVI)
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...

PowerBook G4 (12-inch) Take Apart - 71
 Inner Frame: PowerBook G4 (12-inch DVI)• Top case
• Reed switch
• Hard drive
• Modem
• DC-to-DC board
• Heatsink
Procedure
1. Note the cable routing before disconnecting cables. 
Replacement Note:
 Reserve the tape for securing cables after the frame 
replacement.  

72 - PowerBook G4 (12-inch) Take Apart
 Inner Frame: PowerBook G4 (12-inch DVI) 2.Warning: The subwoofer cone, located below the right corner of the frame, is a 
sensitive device. Avoid touching the cone as you perform this procedure.
3. Disconnect the connector from the upper right corner of the logic board.
4. Remove the screw near the right corner of the frame.    

PowerBook G4 (12-inch) Take Apart - 73
 Inner Frame: PowerBook G4 (12-inch DVI)5.Warning: Be careful not to strain the LVDS cable.
Near the I/O ports, 
• disconnect the LVDS cable by using the pull-tab on the connector
• disconnect the 6-pin connector
Replacement Note:
 When reinstalling the LVDS cable, tuck the pull-tab under the 
frame. 

74 - PowerBook G4 (12-inch) Take Apart
 Inner Frame: PowerBook G4 (12-inch DVI) 6. Near the fan, disconnect the two connectors shown
• four-pin connector
• two-pin connector
Replacement Warning:
 When reassembling the computer, notice the two black 
insulated cables that run along the bottom of the fan. To avoid damaging the 
cables, make sure that the thinner twisted cable is routed on top of the 
thicker fan cable and that both cables are routed between the fan and the 
modem standoff, as shown. 

PowerBook G4 (12-inch) Take Apart - 75
 Inner Frame: PowerBook G4 (12-inch DVI)7. Peel up any remaining tape, and remove the screws from the frame and I/O port 
shield. 
8. Tilt up the RJ11 modem cable board and remove the 6-mm long screw (normally 
hidden by the RJ11 board). 

76 - PowerBook G4 (12-inch) Take Apart
 Inner Frame: PowerBook G4 (12-inch DVI) 9. Disconnect the optical drive flex cable.
10. Lift up the frame, being careful where it catches on the optical drive flex cable or other 
cables. 

PowerBook G4 (12-inch) Take Apart - 77
 Inner Frame: PowerBook G4 (12-inch DVI)11. Lift the inner frame out of the computer assembly. 

78 - PowerBook G4 (12-inch) Take Apart
 Inner Frame: PowerBook G4 (12-inch DVI) 12. Remove the tape that secures the RJ11 board and cable to both sides of the frame. 
Transfer the RJ11 board and cable to the replacement frame.
13. 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 square in the following image.