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iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 144
AirPort
Not able to connect wirelessly with AirPort
1. From the Apple menu, choose About this Mac.
2- Click on More Info. System Proler should open.
3- In System Proler, in the column on the left, look under Network for a line called “AirPort Card”.
Select that line.
4- Does the section to the right say “No Information Found”?
Yes: The computer doesn’t realize it has an AirPort card installed. Go to step. 5
No: The iMac recognizes that it has an AirPort card installed. Go to step 6.
5- Remove the front bezel, lower EMI shield, and two card mounting screws and reseat the
AirPort card. Re-install the two card mounting screws and check System Proler again to see if
the computer sees the AirPort card. Does it recognize the card now?
Yes: Problem solved. Replace the lower EMI shield and front bezel and re-test the system to
verify that the original symptom is resolved.
No: Replace the AirPort card. Refer to the Take Apart section for AirPort Card. If the issue
persists after replacing the AirPort card, replace the logic board.
6- Now that we know the iMac recognizes the AirPort card, check the antenna. If the antenna is
not plugged in all the way, you may have very short AirPort range.
7- Remove the access door, front bezel, lower EMI shield, and the two AirPort card mounting
screws . Disconnect the card, turn it over and reconnect the antenna cable connector to the card.
Make sure the antenna lead is rmly seated. Replace the card and other components and retest.
8- If the antenna lead is plugged in properly and the AirPort card is recognized but the problem
persists, there are a number of other things that could cause issues with wireless networking.
Refer to Knowledge Base document 106858 for more networking information.
9- Replace the AirPort card. Refer to Take Apart/Airport Card.
10- Replace the AirPort antenna. Refer to Take Apart/AirPort Antenna.
11- Replace the logic board. Refer to Take Apart/Logic Board.