Apple imac 20 inch late 2006 User Manual
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Page 91
iMac (20-inch Late 2006) Take Apart —Logic Board 91 3. At the top of the heatsink, remove the two T6 screws that attach the logic board support brackets (clips) to the chassis. Note: The L–shaped support brackets must be removed and transferred to the heatsink on the replacement logic board. Holding the board on each side, lift it up and toward the top of the computer. 4. Note: Remove the memory module from the slot before returning the board to Apple 922-7817
Page 92
iMac (20-inch Late 2006) Take Apart —Logic Board 92 Replacing the Logic Board Replacement 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. Refer to KBase article: Firmware updates for Intel-based Macs. See the following section on 1. compatibility to order the replacement part by EEE code. Position all the logic board cables out of the way so the logic board...
Page 93
iMac (20-inch Late 2006) Take Apart —Logic Board 93 Make sure the hard drive sensor and the sensor cable are attached to the side of the hard 5. drive. Route the sensor cable under the chassis and connect it to the logic board. Connect the optical drive sensor cable, optical flex cable, optical clip, and replace the optical 6. clip screws.
Page 94
iMac (20-inch Late 2006) Take Apart —Logic Board 94 Using a T10 torx screwdriver, replace the seven screws on the board. Always install the 7. machine screws before installing the self-tapping screws.
Page 95
iMac (20-inch Late 2006) Take Apart —Logic Board 95 Connect the cables to the connectors on the logic board. 8. Connect the AirPort and Bluetooth antennas. 9. Replace the speakers. 10. Replace the IR board and connect the IR cable. 11 . Replace the display panel. 12. Replace the lower EMI shield. 13 . Replace the front bezel. 14. Replace the memory access door. 15 . Checking Compatibility between Logic Board and AirPort Card The iMac (Late 2006) computers were built with a number of...
Page 96
iMac (20-inch Late 2006) Take Apart —Logic Board 96 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.”
Page 97
iMac (20-inch Late 2006) Take Apart —Logic Board 97 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 ModelLogic Board Part #Logic Board EEE CodeAirPort Extreme Card Part #AirPort Extreme Card EEE Code iMac (20-inch Late 2006) 661-4108, Board , Logic,...
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iMac (20-inch Late 2006) Take Apart —Logic Board 98 iMac ModelLogic Board Part #Logic Board EEE CodeAirPort Extreme Card Part #AirPort Extreme Card EEE Code iMac (20-inch Late 2006) 661-4295, Board , Logic, 2.33 GHz, 128XYH XYJ 661-4289, B661-4289, J661-4289, KH661-4289, PA661-4289, Z661-4289WQX WQY WQZ WR2 WR0 WR1 iMac (20-inch Late 2006 661-4296, Board , Logic, 2.16 GHz, 256XYF XYG 661-4289, B661-4289, J661-4289, KH661-4289, PA661-4289, Z661-4289WQX WQY WQZ WR2 WR0...
Page 99
iMac (20-inch Late 2006) Take Apart —AC Power Inlet 99 AC Power Inlet Tools Torx T10 screwdriver • Preliminary Steps Before you begin, remove the following: A • ccess door F • ront bezel Lower EMI shield • Display Pane • l Sp • eakers Hard driv • e Logic boar • d CPU Fa • n Part Location
Page 100
iMac (20-inch Late 2006) Take Apart —AC Power Inlet 100 Removing the AC Line Filter 1. Using a torx T10 screwdriver, remove the three self-tapping screws from the power inlet and the machine screw from the ground cable . Remove the EMI tape on the filter. Disconnect the AC filter cable from the power supply. Notice the routing of the AC filter 2. cable under the chassis. Lift the AC filter out of the rear housing. 3. 922-6800 922-7069 (x1)