Apple imac 17 inch flat panel User Manual
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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 securely attached to the base in this fashion, the CPU may overheat and become damaged. For more information, refer to “Thermal Paste Application’” in this chapter. Rotate the base so that the optical drive door is on the right.
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 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.
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 procedure, and failure to tighten the torx screws as directed, could cause the computer to overheat and damage internal components. Refer to the topic “Thermal Paste Application” for detailed information.
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 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.