Apple imac 17 inch flat panel User Manual

							 iMac (17-inch Flat Panel)  Take Apart - 79
 Housing, Outer Shell, Plastic
Housing, Outer Shell, Plastic 
Tools
This procedure requires the following tools:
• Torx-10 screwdriver
Part Location
Preliminary Steps
Before you begin, do the following:
• Position the computer in the service stand.
• Remove the user access plate.
• Remove the bottom housing.
• Remove the drive carrier assembly.
• Remove the power supply.
• Remove the power supply insulators.
• Remove the optical drive door.
• Remove the fan.
• Remove the fan bracket under the fan. 
						

							80 - iMac (17-inch Flat Panel) Take Apart
 Housing, Outer Shell, Plastic • Remove the neck spoke retainer cap.
• Remove the blind mate connector screws. 
						

							 iMac (17-inch Flat Panel)  Take Apart - 81
 Housing, Outer Shell, Plastic
Procedure
1. Remove the two black screws that connects the neck to the base. 
2. Carefully feed the neck cables through the hole on the vent cap shown below. Start 
with the blind mate connector and cables, then the long video cable  
						

							82 - iMac (17-inch Flat Panel) Take Apart
 Housing, Outer Shell, Plastic 3. Next, carefully separate the outer plastic housing (with Faraday attached) from the 
neck.
4. Remove the three screws in the base of the Faraday cage to separate the outer shell 
housing from the Faraday cage. Note:  the cables would have been removed already. 
						

							 iMac (17-inch Flat Panel)  Take Apart - 83
 Housing, Outer Shell, PlasticWarning: Whenever the bottom housing is opened for service, you must do two things:
1.You must clean the original thermal film from all thermal interface mating surfaces, 
and reapply thermal paste to the mating surfaces on the thermal pipe.
2. You must tighten the four torx screws on the bottom housing to a minimum of 17 
in.-lbs. Use a torque driver (service tool 076-0899) to ensure that the thermal pipe is 
firmly mated with the top base. If you do not have a torque driver, you must make 
sure the screws are tightened by hand FIRMLY, BUT NOT FORCIBLY. 
Warning:
 Failure to follow these steps could cause the computer to overheat 
and damage internal components.
Refer to the topic “Thermal Paste Application” for detailed information. 
						

							84 - iMac (17-inch Flat Panel) Take Apart
 Display, Flat Panel
Display, Flat Panel
Tools
This procedure requires the following tools:
• 1.5 mm hex tool
• Torx-10 screwdriver
Important:  If you are replacing the display, be sure to install the new display shield and 
EMI gaskets that come with the new LCD panel. Installation instructions are included with 
the new display panel
Part Location
Preliminary Steps
Before you begin, do the following:
• Position the computer in the service stand. 
						

							 iMac (17-inch Flat Panel)  Take Apart - 85
 Display, Flat Panel
Procedure
1. Remove three screws that connect the back cover to the flat panel LCD display.  
						

							86 - iMac (17-inch Flat Panel) Take Apart
 Display, Flat Panel 2. Support the back cover and pull back the display (as shown) to separate it from the 
base. 
						

							 iMac (17-inch Flat Panel)  Take Apart - 87
 Display, Flat Panel3.Caution: The power on LED cable (labelled A below) is fragile. When disconnecting 
display cables, be sure to raise the TOP SIDE of the display only. 
Carefully raise the TOP SIDE of the display and disconnect the inverter cable (B) and 
remove the TMDS cables (C) from the metal cable clip. Note:  Enlarge the page to 
view the graphic at a larger size.
4. Raise the display to access the TMDS connector. Peel back the black tape. 
						

							88 - iMac (17-inch Flat Panel) Take Apart
 Display, Flat Panel 5. Disconnect the TMDS connector. Note:  Enlarge the page to view the graphic at a 
larger size. 
 
6.Caution: The power on LED cable (labelled A below) is fragile. Raise the top of the 
display to access the power on LED (A below) and microphone (B below) cables. Peel 
back the tape and disconnect the cables.