Apple imac 17in 1ghz Service Manual

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36 - iMac (17-inch Flat Panel, 1GHz) Take Apart
 Thermal Pad Installation
Procedure 
1.
Remove the old thermal pads from the bottom housing. Note:  If you don’t see the two 
thermal pads on the bottom housing, check the under side of the logic board. The 
thermal pads may stick to the logic board. Always remove the old thermal pads, and 
install new pads if you are taking the unit apart to this level. 
2.
Using the thermal pad kit, remove the clear protective backing from the new thermal 
pads. 
3.
Place the new thermal pads on the bottom housing. Press down on the blue protective 
backing to make sure the thermal pad has even contact with the bottom housing. 
There should be no air pockets.
4.
Remove the blue protective backing from the new thermal pad. Note: Avoid 
unnecessary contact with either side of the thermal pad as dirt and body oils reduce 
the thermal pad's conductivity.
5.
Slide the logic board back into the bottom housing (make sure the I/O port covers are 
on the logic board).