Apple powerbook g4 12 inch 1 5ghz User Manual

PowerBook G4 (12-inch 1.5 GHz) Take Apart - 59
 Inner Frame • Hard drive
• Modem
• DC-to-DC board
• Heatsink
Procedure
1. Note the cable routing before disconnecting cables. 
Replacement Note:
 Reserve any tape for securing cables after the frame 
replacement. 
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. 

60 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 Inner Frame
4.
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.
5. Remove the screw that secures the LVDS cable to the frame. 

PowerBook G4 (12-inch 1.5 GHz) Take Apart - 61
 Inner Frame 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 th\
e 
modem standoff, as shown. 

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 Inner Frame
7. Peel up any remaining tape, and remove the screws from the frame.  

PowerBook G4 (12-inch 1.5 GHz) Take Apart - 63
 Inner Frame 8.
Important:  Check the appearance of the RJ11 modem board. Two RJ11 assemblies 
are possible:
• If the RJ11modem board has one screw that secures the modem filter board\
 to the  frame (as shown below), remove the 6-mm long screw. 
• If there are two screws that secure the RJ11 modem panel to the frame, g\
o to the  next step. 

64 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 Inner Frame
9. Remove the two screws from the RJ11 board.
10. Tilt up the RJ11 board, and remove the 6-mm long screw at the frame.
Replacement Note:
 When replacing the RJ11 board, make sure the peg on the 
underside of the board fits in the hole in the frame. 

PowerBook G4 (12-inch 1.5 GHz) Take Apart - 65
 Inner Frame 11. Disconnect the optical drive 
flex cable.
12. Pull up the hall effect sensor cable from a few of the cable routing guides only until it  clears the frame. 

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 Inner Frame
13. Lift up the frame, being careful where it catches on the optical drive 
flex cable and 
other cables. 

PowerBook G4 (12-inch 1.5 GHz) Take Apart - 67
 Inner Frame Replacement Note:
 When installing the replacement frame, note the routing 
of the cables through the frame channels. 

68 - PowerBook G4 (12-inch 1.5 GHz) Take Apart
 Inner Frame
14. Remove the tape that secures the RJ11 modem board and cable to both sides of the 
frame. Transfer the RJ11 board and cable to the replacement frame.
Note:
 The appearance of the RJ11 modem board depends on the one installed in 
the computer you are servicing. Both possibilities are shown below.