Apple imac 17 inch flat panel User Manual

 
 iMac (17-inch Flat Panel)  Take Apart -  
49  
 Power Supply  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 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...

 
50 - 
 iMac (17-inch Flat Panel) Take Apart
 Optical Drive Door  Optical Drive Door 
Tools 
This procedure requires the following tools:
• Torx-10 screwdriver
• Needlenose pliers 
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. 

 
 iMac (17-inch Flat Panel)  Take Apart -  
51  
 Optical Drive Door  Procedure  1. Remove the four screws on the DVD shield. Set the shield aside. 
  Important:
   The two screws near the door hinge are shorter than the other power 
supply screws. Failure to replace the shorter screws to their correct location will 
scratch the top housing. See step 4, Replacement Note in the Power Supply section 
for a picture.  

 
52 - 
 iMac (17-inch Flat Panel) Take Apart
 Optical Drive Door 2. Slide the optical door guide off the chassis. 
3. Carefully remove the two door springs with a needlenose pliers.  

 
 iMac (17-inch Flat Panel)  Take Apart -  
53 
 Optical Drive Door4. Remove the door hinge screws.
5. Open the door open. 

 
54 - 
 iMac (17-inch Flat Panel) Take Apart
 Optical Drive Door 6. Slide the door and hinge off the frame. Remove the door from the base.
 
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 minimum of 17 
in.-lbs. Use a torque driver (service...

 
 iMac (17-inch Flat Panel)  Take Apart -  
55
 Speaker, Internal
Speaker, Internal
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. 

56 - iMac (17-inch Flat Panel) Take Apart
 Speaker, Internal
Procedure
1. Loosen the two screws enough to slide the speaker off the metal posts. Disconnect 
the speaker cable.
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 minimum of 17 
in.-lbs....

 iMac (17-inch Flat Panel)  Take Apart - 57
 Fan
Fan
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.
• Remove the bottom housing.
• Remove the drive carrier assembly. 

58 - iMac (17-inch Flat Panel) Take Apart
 Fan
Procedure
1. Remove the two fan screws and disconnect the fan connector. 
2. Lift the fan out of the chassis (Faraday cage). Note: The replacement fan includes the 
mounting bracket.
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...