Apple ibook g4 12 inch mid 2005 User Manual

							
iBook G4 (12-inch Mid 2005) Take Apart - 90
 Reed Switch Board 4.
Caution:   To avoid damaging the reed switch cable, slowly pull it up from the groove 
between the frame rib and the optical drive. Hold the tape aside as you guide the 
cable out of the groove.
5. Use a black stick to pry up the reed switch board from the adhesive on the underside  of the reed switch board. 
						

							
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 Reed Switch Board
6. Remove the reed switch cable assembly.
7. Install the replacement reed switch board and cable assembly, and reassemble and 
test the computer.
Be sure to tuck the cables into the groove at the lower edge of the opti\
cal drive. 
Secure the cables with the tape provided.
Replacement Note:  When replacing the reed switch board and cable, align the 
board end with the inner edge of the optical drive bezel. Make sure the \
board has 
sufficient adhesive. 
						

							
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 Optical Drive
Optical Drive
Tools
• Soft cloth
• #0 Phillips screwdriver
• Black stick (or other nonconductive nylon or plastic 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 
• Keyboard and RAM shield
• Memory 
						

							
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 Optical Drive
• Bottom case 
• Bottom shield
• DC-in board
• Top case
• Top shield
Procedure
1. With the computer on a soft cloth, peel up any tape on top of the optical drive.
2. Remove the following from the optical drive:
• 5-mm long screw at ends of drive bezel
• 6-mm long screw at lower left corner of drive (this screw has an identi\
fiable collar under the screw head)
• 3-mm long screw at upper left corner of drive
Replacement Note:  When replacing the optical drive, install the screws in the 
sequence shown.
3. Move the reed switch cable aside.  Note:  You do not need to completely remove the reed switch board and cable. 
						

							
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 Optical Drive 4. Disconnect the optical drive ribbon cable from the logic board. 
						

							
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 Optical Drive
5.
Warning:  Handle the optical drive at the edges only. Do not touch or press 
anywhere else on the drive.
Without pinching any cables, tilt up the optical drive and lift it out t\
he drive.
6. When removing the drive, the bottom of the drive case might stick to tape on the  underside of the frame. If it does, use a black stick to release the drive.
Note the antenna cable routing after the drive has been removed. 
						

							
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 Optical Drive 7. Remove the two identical 3-mm long screws that hold the bracket to the optical drive.
8. Remove the cable bracket.
Note:  When reassembling the computer, transfer the cable bracket to the 
replacement drive.
9. Peel off the tape from the optical drive, and use a black stick to disconnect the ribbon  cable.
Note:  When reassembling the computer, transfer the ribbon cable to the replacement 
drive.  
						

							
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 Optical Drive
10.  Remove the 4.5-mm long screws that hold the mounting bracket to the optical drive. 
Although the three screws are the same length, the screw that secures the bracket to 
the bezel is a different shape (no collar), while the other two have collars.
Important:  When reassembling the computer, transfer the mounting bracket to the 
replacement drive. 
						

							
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 Optical Drive 11. With the pointed end of a black stick, press lightly on the three tabs, and tilt the bezel 
up and off of the drive. 
						

							
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 Optical Drive
12. Install the replacement optical drive, and reassemble and test the computer.
Replacement Note:
 When installing the replacement optical drive, align the front of 
the drive bezel to the outer edge of the frame first. Make sure the scre\
w holes align. 
Check that the felt at the slot opening is even and not mashed.
Important:  Before installing the drive, check that the antenna cable routing match\
es 
the gray and black cable routing pictured below.