Apple imac 17 inch flat panel User Manual

 
 iMac (17-inch Flat Panel)  Take Apart -   
9  
 Memory, SO-DIMM (user-installable)6. Remove the memory from the slot.  

 
10 - 
 iMac (17-inch Flat Panel) Take Apart
 Bottom Housing 
Bottom Housing
 
Tools
 
This procedure requires the following tools:
• Torx-15 screwdriver 
Part Location
Preliminary Steps
 
Before you begin, do the following:
• Position the computer in the service stand.
• Remove the user access plate. 

 
 iMac (17-inch Flat Panel)  Take Apart -   
11  
  
Procedure
 
1. Rotate the base so the optical drive door is on the right. Remove the four torx screws. 
Replacement Note: 
  
  
These torx screws must be tightened to at least 17 in.-lbs. If you do 
not have a torque driver, you will have to make sure these screws are tightened by hand 
FIRMLY, BUT NOT FORCIBLY. Or, purchase the service tool (076-0899) in order to ensure 
the thermal pipe is firmly mated with the top base. If the bottom housing is not...

 
12 - 
 iMac (17-inch Flat Panel) Take Apart2. Gently open the bottom housing in the direction of the arrow.  
Note:  
 Cables are still 
attached to the logic board. 

 
 iMac (17-inch Flat Panel)  Take Apart -   
13  
 3. Disconnect the following: 
A 
 Power supply connector  
B 
 Hard drive/optical drive data cable 
C 
 AC line filter connector 
D 
 AirPort antenna connector 
E 
 Plastic cable retainer and video cable 
F 
 Grounding screw  
4. Set the bottom housing aside. 
Warning: 
 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...

 
14 - 
 iMac (17-inch Flat Panel) Take Apart
 Thermal Paste Application 
Thermal Paste Application
 
Tools
 
This procedure requires the following tools:
• Plastic stylus or plastic spatula to remove the old thermal paste
• Plastic stylus or plastic spatula to spread the thermal paste
• Thermal paste (922-4757) 
Part Location 

 
 iMac (17-inch Flat Panel)  Take Apart -  
15  
 Thermal Paste Application 
Procedure
 
1. Thoroughly clean the original thermal film from the mating surfaces (circled below) of 
the bottom housing and thermal pipe. Use a plastic stylus to scrape the surfaces 
clean.  
Note: 
  Do not use an abrasive material or liquid cleaner.
2. Squeeze a thin film of thermal paste onto the mating surfaces of the thermal pipe.  

 
16 - 
 iMac (17-inch Flat Panel) Take Apart
 Thermal Paste Application 3. Replace the bottom housing.
  
Warning:  
The bottom housing has four torx screws that must be tightened to at least 
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 apply the thermal paste as described in this...

 
 iMac (17-inch Flat Panel)  Take Apart -  
17  
 RJ-11 Modem Filter Board 
RJ-11 Modem Filter Board
 
Tools
 
This procedure requires the following tools:
• Torx-6 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. 

 
18 - 
 iMac (17-inch Flat Panel) Take Apart
 RJ-11 Modem Filter Board 
Procedure
 
1. Remove two screws and disconnect the cable from the modem.
2. Remove the RJ-11 board from the I/O port. 
Warning: 
 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...