Apple imac 17in 1ghz Servicehandbuch

74 - iMac (17-inch Flat Panel, 1GHz) Take Apart

 Chassis (Faraday Cage)

Faraday cage: Look at the exploded view diagram during reassembly. First, attach the 

Faraday top cover to the top (OUTSIDE) of the Faraday cage as shown below; the 

Faraday top cover is keyed. Next, thread the neck cables through the hole in the Faraday 

cage and install the Faraday cage into the top plastic housing. Replace the screw that 

holds the plastic housing to the chassis. Attach the black neck cap screws to connect the 

neck to the chassis. Route the neck cables correctly in the base and replace the fan 

bracket retainer and three remaining neck cap screws.

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. 

Refer to the topic “Thermal Paste Application” for detailed information.