Apple imac 17 inch flat panel User Manual
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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 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.
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 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.
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. 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.
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 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.