Apple ibook g4 12 inch mid 2005 User Manual
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![Page 117
iBook G4 (12-inch Mid 2005) Take Apart - 116
Heatsink 8. Turn over the heatsink and note the placement of the thermal pads.
Important: Any time the heatsink is removed or a replacement heatsink is to be
installed, make sure new thermal pads are applied in the following orien\
tation:
• Small rectangular pad at the upper end of the thermal plate
• Largest pad in the middle of the thermal plate
• Square, medium-sized pad at the lower end of the thermal plate
9. Before installing the heatsink, make sure...](http://img.usermanuals.tech/thumb/462/38813/w64_ibook-g4-12-inch-mid-2005-116.png "Page 117
iBook G4 (12-inch Mid 2005) Take Apart - 116
Heatsink 8. Turn over the heatsink and note the placement of the thermal pads.
Important: Any time the heatsink is removed or a replacement heatsink is to be
installed, make sure new thermal pads are applied in the following orien\
tation:
• Small rectangular pad at the upper end of the thermal plate
• Largest pad in the middle of the thermal plate
• Square, medium-sized pad at the lower end of the thermal plate
9. Before installing the heatsink, make sure...")
![Page 122
121 - iBook G4 (12-inch Mid 2005) Take Apart
Logic Board
4. Turn over the frame, and remove the following from the logic board:
• Eight 4.5-mm long screws
• Two 8-mm long screws
• Two 6-mm long screws
Replacement Note: When replacing the logic board, install the screws in the order
shown. The 4.5-mm long screw with the thicker shaft is located at positi\
on 6.](http://img.usermanuals.tech/thumb/462/38813/w64_ibook-g4-12-inch-mid-2005-121.png "Page 122
121 - iBook G4 (12-inch Mid 2005) Take Apart
Logic Board
4. Turn over the frame, and remove the following from the logic board:
• Eight 4.5-mm long screws
• Two 8-mm long screws
• Two 6-mm long screws
Replacement Note: When replacing the logic board, install the screws in the order
shown. The 4.5-mm long screw with the thicker shaft is located at positi\
on 6.")
![Page 123
iBook G4 (12-inch Mid 2005) Take Apart - 122
Logic Board Note:
When reassembling the computer, make sure that you transfer the followi\
ng
items from the original logic board to the top of the replacement logic \
board:
• Memory card
• RJ11 board
5. Warning: Flexing the logic board can break solder joints to components. To prevent
damage, do not flex the board.
Lifting the logic board at the back ports, tilt up the logic board to re\
move it from the
frame.](http://img.usermanuals.tech/thumb/462/38813/w64_ibook-g4-12-inch-mid-2005-122.png "Page 123
iBook G4 (12-inch Mid 2005) Take Apart - 122
Logic Board Note:
When reassembling the computer, make sure that you transfer the followi\
ng
items from the original logic board to the top of the replacement logic \
board:
• Memory card
• RJ11 board
5. Warning: Flexing the logic board can break solder joints to components. To prevent
damage, do not flex the board.
Lifting the logic board at the back ports, tilt up the logic board to re\
move it from the
frame.")
![Page 124
123 - iBook G4 (12-inch Mid 2005) Take Apart
Logic Board
6. Install the replacement logic board, and reassemble and test the computer.
Important: Make sure the replacement logic board includes the following:
• Kapton tape where shown
• Three sponge pads in the area where the AirPort Extreme/Bluetooth card i\
s to be installed](http://img.usermanuals.tech/thumb/462/38813/w64_ibook-g4-12-inch-mid-2005-123.png "Page 124
123 - iBook G4 (12-inch Mid 2005) Take Apart
Logic Board
6. Install the replacement logic board, and reassemble and test the computer.
Important: Make sure the replacement logic board includes the following:
• Kapton tape where shown
• Three sponge pads in the area where the AirPort Extreme/Bluetooth card i\
s to be installed")
iBook G4 (12-inch Mid 2005) Take Apart - 120 Logic Board 2. Turn over the frame, and peel up any tape that covers the logic board. 3. Disconnect the sleep light cable and the fan cable.
121 - iBook G4 (12-inch Mid 2005) Take Apart Logic Board 4. Turn over the frame, and remove the following from the logic board: • Eight 4.5-mm long screws • Two 8-mm long screws • Two 6-mm long screws Replacement Note: When replacing the logic board, install the screws in the order shown. The 4.5-mm long screw with the thicker shaft is located at positi\ on 6.
iBook G4 (12-inch Mid 2005) Take Apart - 122 Logic Board Note: When reassembling the computer, make sure that you transfer the followi\ ng items from the original logic board to the top of the replacement logic \ board: • Memory card • RJ11 board 5. Warning: Flexing the logic board can break solder joints to components. To prevent damage, do not flex the board. Lifting the logic board at the back ports, tilt up the logic board to re\ move it from the frame.
123 - iBook G4 (12-inch Mid 2005) Take Apart Logic Board 6. Install the replacement logic board, and reassemble and test the computer. Important: Make sure the replacement logic board includes the following: • Kapton tape where shown • Three sponge pads in the area where the AirPort Extreme/Bluetooth card i\ s to be installed
iBook G4 (12-inch Mid 2005) Take Apart - 124 Logic Board Replacement Note: Make sure you install the RJ11 modem cable.
125 - iBook G4 (12-inch Mid 2005) Take Apart Frame Frame Tools No tools are required for this procedure. Part Location Preliminary Steps Before you begin, remove the following: • Battery • Keyboard and RAM shield • Memory card • Bottom case • Bottom shield • DC-in board • Fan
iBook G4 (12-inch Mid 2005) Take Apart - 126 Frame • Top case • Sleep light board • Top shield • Display module • I/O Bezel • RJ11 modem cable • Hard drive • Modem • AirPort Extreme/Bluetooth card • Optical drive • Heatsink • Vent cover • Logic board Procedure With all preliminary steps completed, the frame is the remaining part. 1. Remove any remaining tape from the frame. 2. Remove the single 3.5-mm long screw from the I/O port shield.
127 - iBook G4 (12-inch Mid 2005) Take Apart Frame 3. Turn over the frame and remove the tape from the other side. 4. Reassemble and test the computer. Important: When installing the I/O port shield, make sure it fits over the ports, \ as shown.
iBook G4 (12-inch Mid 2005) Take Apart - 128 Display Rear Housing Display Rear Housing Tools • Soft cloth • Torx T6 screwdriver or 5/32 hex driver • Black stick (or other nonconductive nylon or plastic tool) Note: To organize the screws you remove from the display assembly, use a tray with divided compartments (such as a plastic ice cube tray). Replacement Note: If the tape you remove from this assembly is worn and cannot be reused, use new Kapton tape (Apple part number 922-5025). Part Location
129 - iBook G4 (12-inch Mid 2005) Take Apart Display Rear Housing Preliminary Steps Before you begin, remove the following: • Battery • Keyboard and RAM shield • Memory card • Bottom case • Bottom shield • DC-in board • Top case • Top shield • Modem • AirPort Extreme/Bluetooth card • Display module Procedure 1. With the display face down on a soft cloth, remove the four 7-mm long hex screws (two from each side) from the display module.