Apple imac 20 inch early 2008 User Manual

iMac (20-inch Early 2008)  Take Apart — LCD Temp Sensor Cable 81
7. Replace the eight T8 display panel screws.
Replace the front bezel.8.  
Clean and r9. eplace the glass panel. Note: This step is very important. Follow the procedures 
to ensure the glass is clean and free of particles.
Replace the access door
10.  .
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iMac (20-inch Early 2008)  Take Apart — LVDS Cable 82
LVDS Cable
Tools
Torx T6 screwdriver• 
Soft, clean towel or cloth• 
Preliminary Steps
Before you begin, remove the following:
A
• ccess door
Glass Pane
• l
F
• ront bezel
LCD display pan
• e
Part Location 

iMac (20-inch Early 2008)  Take Apart — LVDS Cable 83
Removing the LVDS Cable
With the display face down on a soft cloth, peel up the two strips of black tape from the 1. 
LVDS cable on the back of the display panel. Save the strips for use when reinstalling the 
LVDS cable.
Remove the clear Kapton tape from the LVDS cable where it attaches to the panel.2.  
Press in on the LVDS connector lock release clip (1)  and then gently pull (2) to disconnect 3. 
the LVDS cable from the back of the panel. 

iMac (20-inch Early 2008)  Take Apart — LVDS Cable 84
Replacing the LVDS Cable
Connect the LVDS cable to the rear of the display panel.1. 
Replace the tape over the LVDS cable connector.2.  
With the LVDS cable connected to the back of the display panel, lower the display panel into 3. 
the rear housing.
Tuck the four inverter cables into the open cavities in the rear housing.
4. Important: If the 
cables are not tucked into the open areas next to the optical drive, the LCD panel will not 
lower into...

iMac (20-inch Early 2008)  Take Apart — LVDS Cable 85
5. Connect the LVDS cable to the logic board. Replace the two T6 screws.
Connect the display temp sensor cable to the left side of the logic board.6. 
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iMac (20-inch Early 2008)  Take Apart — LVDS Cable 86
7. Install the eight panel mounting screws.
Replace the front bezel.8.  
Clean and r9. eplace the glass panel. Note: This step is very important. Follow the procedures 
to ensure the glass is clean and free of particles.
Replace the access door
10.  .
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iMac (20-inch Early 2008)  Take Apart — Inverter 87
Inverter
Tools
Torx T10 screwdriver• 
Preliminary Steps
Before you begin, remove the following:
A
• ccess door
Glass Pane
• l
F
• ront bezel
LCD display pa
• nel
Optical drive
• 
Speaker, righ• t
Part Location 

iMac (20-inch Early 2008)  Take Apart — Inverter 88
Removing the Inverter Cable
1. Remove the two 13mm self-tapping T10 screws from the inverter cover.
Disconnect the inverter power connector. Press down on the connector and pull it to the left 
2.  
(in the direction of the hard drive).  
Lift the cover and inverter board out of the rear housing.
3. 
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iMac (20-inch Early 2008)  Take Apart — Inverter 89
Replacing the Inverter Cable
1. Place the inverter cover over the inverter board.
Connect the inverter power cable to the inverter board.
2.  
Tuck metal tabs on the left side of the inverter cover under the chassis.3. 
4. Line up the screws hole and attach the two inverter screws to the rear housing.
Replace the optical drive5. .
Lower the LCD display panel into the rear housing.
6.  
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iMac (20-inch Early 2008)  Take Apart — Inverter 90
Connect the inverter cable to the panel. 
7.
 Important: Tuck the four inverter cables into the 
open cavities in the rear housing. If the cables are not tucked into the open areas next to the 
optical drive, the LCD panel will not lower into place correctly making proper installation of 
the front bezel difficult.
Connect the display temp sensor cable to the connector on the left side of the logic board 8.  
(next to the memory slot).