Apple imac 17 inch late 2006 User Manual

iMac (17-inch Late 2006) Take Apart — Logic Board 91
Removing the Logic Board
Disconnect the ten cables from their connectors on the logic board.  
1.  
Using a T10 torx screwdriver, remove the screws from the logic board. The locations of the 
2.  
three self-tapping screws are marked by and “S” in the photo. The remaining three screws, are 
machine screws; they are marked with an “M”.  Note: Transfer the small metal grounding 
(located two screws below the battery) clip to the replacement logic board.  

iMac (17-inch Late 2006) Take Apart — Logic Board 92
Rotate the unit so the top of the rear housing is facing you. With a black stick, disconnect the 
3. 
power supply cable on the underside of the logic board. 
Pull the board toward you and gently lift the board up. 
4.   Note: The I/O ports fit tightly into the 
port hole openings on the rear cover. You may have to wiggle with the board to free the 
ports from the rear cover.   

iMac (17-inch Late 2006) Take Apart — Logic Board 93
Replacing the Logic Board
Note: iMac Firmware Update 1.2 (or later) Required
For proper performance and reliability of the Intel Core 2 Duo processors, apply the iMac 
firmware update after replacing the logic board. The firmware update also allows Apple service 
to consolidate two logic boards. The 661-4105 logic board will replaced by 661-4290 and the 
661-4106 will be replaced by the 661-4291.See the following section on compatibility to order the...

iMac (17-inch Late 2006) Take Apart — Logic Board 94
Check that the screw holes are aligned with the screw mounts in the chassis. 
3.  Replacement 
Note: The logic board should rest on the screw mounts without any binding or bowing—if it 
doesn’t, adjust any cables that are interfering with the logic board. Reconnect the ten logic 
board cables. 
Secure the logic board by installing the machine screws first and then the self-tapping 
4.  
screws, marked with an “S”.  

iMac (17-inch Late 2006) Take Apart — Logic Board 95
Install the optical drive.
5. 
Replace the hard drive.
6.  
Replace the speakers.
7.  
Connect the AirPort antennas to the AirPort Extreme card. 
8.   Replacement Note: Add new info 
here
Replace the Bluetooth board.
9. 
Connect the Bluetooth antenna to the Bluetooth board.
10.  
Replace the display panel.
11 .  
Replace the lower EMI shield.
12.  
Replace the front bezel.
13 .  
Replace the memory.
14.  
Replace the memory access door.
15 .   

iMac (17-inch Late 2006) Take Apart — Logic Board 96
Checking Compatibility between AirPort Card and Logic Board
The iMac (Late 2006) computers were built with a number of logic boards and AirPort Extreme 
cards. To avoid confusion identifying the correct logic board and AirPort Extreme card for the 
system, refer to the table in this section which lists the corresponding EEE codes.  
Locating the EEE Code
To locate the EEE code on the AirPort Extreme card, remove the card from the logic board. Turn 
the...

iMac (17-inch Late 2006) Take Apart — Logic Board 97
To locate the EEE code on the logic board, locate the memory slot inside the computer. Locate 
the last four digits in the serial number. Drop the last digit, in this case, the letter “A.” The EEE code 
is the next three digits. In this case the EEE code is “WZH.”   

iMac (17-inch Late 2006) Take Apart — Logic Board 98
EEE Code Table
Use the table below to identify the logic board and AirPort Extreme card EEE codes for the iMac 
system. Order the correct service part based upon the corresponding EEE code. The table is 
available in Knowledge Base article 305112	-	iMac	(Late	2006):	AirPort	Card	Differences.
iMac Model Logic Board 
Part #Logic Board 
EEE CodeAirPort 
Extreme Card 
Part #AirPort 
Extreme Card 
EEE Code
iMac (17-inch Late 
2006) 661-4290, 
Board , Logic,...

iMac (17-inch Late 2006) Take Apart — CPU Fan 99
CPU Fan
Tools
No tools are required to remove the CPU fan.
Preliminary Steps
Before you begin, follow steps for removing the following:Access doo
•  r
Front beze
•  l
Lower EMI shiel
•  d
LCD Displa
•  y
Hard Driv
•  e
O
•  ptical drive
Speaker
•  s
Memor
•  y
Logic Board
• 
Part Location 

iMac (17-inch Late 2006) Take Apart — CPU Fan 100
Removing the CPU Fan
Lift the CPU fan off the white mounting posts. 
1.  
Replacing the CPU Fan
Align the CPU fan with the two mounting posts in the rear housing, and push it straight 
1.  
down onto the posts. Note: Route the antenna cable under the fan (as shown above), but 
pull it aside (to the left side) when installing the logic board.
Replace the logic board.  
2.  
Connect the CPU fan cable and the rest of the cables to the logic board.
3....