Apple imac 20 inch early 2008 User Manual

iMac (20-inch Early 2008)  Take Apart — Hard Drive Fan 161
Rep5. lace the display panel.
Replace the front bezel.
6.  
Clean and replace the glass panel7. . Note: This step is very important. Follow the procedures 
to ensure the glass is clean and free of particles.
Replace the access doo
8.  r. 

iMac (20-inch Early 2008)  Take Apart — Audio Board 162
Audio Board
Tools
Torx T6 screwdriver• 
Preliminary Steps
Before you begin, remove the following:
A
• ccess door
Glass pane
• l
F
• ront bezel
LCD display pane
• l
Speaker, right
• 
Part Location 

iMac (20-inch Early 2008)  Take Apart — Audio Board 16 3
Removing the Audio Board
Disconnect the following:1. 
Left speaker cable
•	
Microphone cable
•	
Tiny, flexible audio-to-logic board cable
•	
2.  Remove the four T6 screws.
Lift the audio board off the logic board.3. 
922-7010 

iMac (20-inch Early 2008)  Take Apart — Audio Board 16 4
Replacing the Audio Board
1. Install the audio board onto the logic board.  
Replace the four T6 screws and connect the left speaker, the microphone, and the tiny, 
2.  
flexible audio board cable.
Replace the right speaker.3. 
Rep4. lace the display panel.
Replace the front bezel.
5. 
Clean and replace the glass panel6.  . Note: This step is very important. Follow the procedures 
to ensure the glass is clean and free of particles.
Replace the...

iMac (20-inch Early 2008)  Take Apart — Camera Cable 165
Camera Cable
Tools
T8 torx screwdriver• 
Preliminary Steps
Before you begin, remove the following:
A
• ccess door
Glass Pane
• l
F
• ront bezel
LCD display pane
• l
Speaker, righ
• t
Speaker, lef
• t
CPU fa
• n
Logic boar
• d
Power Suppl
• y
Hard driv
• e
Hard drive fa
• n
Hard drive SATA cabl
• e
Optical driv
• e
Optical fa
• n
Optical	flex	cabl• e
Inverte
• r
Mechanism cove
• r
Stan
• d
Chassi
• s 

iMac (20-inch Early 2008)  Take Apart — Camera Cable 166
Part Location 

iMac (20-inch Early 2008)  Take Apart — Camera Cable 16 7
Removing the Camera Cable 
At the top, peel back the EMI tape that grounds the exposed part of the camera cable to the 1. 
chassis. .
Remove the three pieces of clear Kapton tape securing the cable to the rear housing.2.   

iMac (20-inch Early 2008)  Take Apart — Camera Cable 168
Near the middle of the rear housing, remove the two T8 screws on the cable guide. 
3.  

iMac (20-inch Early 2008)  Take Apart — Camera Cable 16 9
Replacing the Camera Cable
Route the camera cable into the rear housing as shown below.1. 
At the top, replace the piece of EMI tape grounding the camera cable to the chassis..2.   

iMac (20-inch Early 2008)  Take Apart — Camera Cable 170
Replace the three pieces of Kapton tape onto the rear housing.3. 
Replace the T8 screws on the black plastic cable holder.4. 
Replace the pressure wall and pressure wall screws.5. 
Replace the chassi6. s and screws.