Display

The display does not remain in its intended position when tilted. The iMac (20-inch Late 2006) display should move and stay in an intended position for it's range 1. Verify that the display is not keeping position. 2. Verify that the computer stand is not propped up in the rear (resting on its power cord, for example). 3. Verify that the work surface is also flat as in relation to the floor. A tilted work surface (such as a drafting table) could cause the display not to keep position as...

How to Reset the System Management Controller SMC

The System Management Controller (SMC) is a chip on the logic board that controls all power functions for your computer. If your computer is experiencing any power issue, resetting the SMC may resolve it. The SMC controls several functions, including Telling the computer when to turn on, turn off, sleep, wake, idle, and so forth. Handling system resets from various commands. Note that resetting the SMC does not reset the PRAM. Resetting the SMC will not resolve issues in which your computer is...

Replacing the ACDC Power Supply

WARNING The AC DC power supply PCB remains powered up whenever the system is plugged in, whether or not the system has been turned on. Use extreme caution when troubleshooting the system with the front bezel removed. Don't work alone. In the event of an electrical shock it is important to have another individual present who can provide assistance. Keep one hand in your pocket when working on any iMac system that is plugged in. This will help ensure that your body does not provide a path to...

Replacing the Lower EMI Shield

Position the lower EMI shield over the bottom of the unit so that the holes (for the IR board and the LED) in the shield are properly aligned. 2. Press the sticky, edge of the EMI shield onto the bottom side of the display panel. The crease in the EMI shield should align with the edge of the panel. 3. Fold down the EMI shield and press it firmly over the bottom edge of the rear housing. Use a black stick to rub out any air bubbles and ensure that the EMI shield adheres firmly and without...

Checking Compatibility between Logic Board and Air Port Card

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. To locate the EEE code on the AirPort Extreme card, remove the card from the logic board. Turn the card over, and look for the representative EEE code within the card's serial number. Locate the last four digits in the serial...

Shimmering Vertical Lines Horizontal Lines

Imac 2006 Horizontal Lines

The iMac will wake from sleep, but a slight shimmering of the image may be visible. In some cases the shimmering on the display may worsen so that the display fills with vertical lines, horizontal lines, or the image begins to shake refer to the following four images samples. Continue with the procedure to correct the issue. 1. Open the Energy Saver System Preferences and temporarily set the display to sleep after one minute. Set the computer to sleep after ten minutes. Once the Energy Saver...

Access Tool Modification

If you wish to modify the access card tool, order kit 076-1213. The kit contains an access card and a piece of EMI gasket that can be cut and added to the top of the card. The additional thickness on the card will improve the chances of making contact with each bezel latch. 1. Remove the tape on the gasket to expose the sticky side of the gasket. Attach the sticky side of the EMI gasket to the top of the access card. 2. Cut the EMI gasket to the edge of the access card. 4. Bend the card at a...

Checking Compatibility between Air Port Card and Logic Board

Mac Airport Card Serial

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. To locate the EEE code on the AirPort Extreme card, remove the card from the logic board. Turn the card over, and look for the representative EEE code within the card's serial number. Locate the last four digits in the serial...

Removing the Front Bezel

Imac Front Bezel Latch

Position unit on rear cover with the stand facing you. 2. Tilt up the front bezel and remove four screws along the bottom. The longer screw is the second screw from the right. It's to the left of the ambient light sensor. Warning The ambient light sensor is located in the second hole from the right. Don't mistake the ambient light sensor for a screw. Sticking a screwdriver or other sharp object in 3. Locate the access card. Bending the upper quarter of the access tool card will help engage...

Discs wont insert

Is there a disc already in the drive Yes Eject the disc before inserting another. Refer to Knowledge Base article 106752, Macintosh How to Eject a Disc When Other Options Do Not Work If none of these options will eject the disc, you may have to disassemble the drive to recover the disc. See Knowledge Base article 86382 - Macintosh How to Remove a Stuck Disc From a Slot-Loading Drive. No Reseat the optical drive. Perform the Optical Drive procedure in Take Apart to reseat the drive in the...

Fans running at full speed after the computer turns on

The customer may have entered a diagnostic mode that causes the fans to run at full speed. Restarting the system will not restore normal fan operation. To solve the problem, the user or technician should do the following 2. Disconnect the power cord and wait 15 seconds. 3. Reconnect the power cord and wait 5 seconds. Note Customers reporting this symptom should be told to press the power button AFTER the power cord has been fully inserted. Inserting the power cord while pressing the power...

To reset the SMC

From the Apple menu, choose Shut Down or if the computer is not responding, hold the power button until it turns off . 2. Unplug all cables from the computer, including the power cord. 4. Plug the power cord back in, making sure the power button is not being pressed at the time. 5. Reconnect your keyboard and mouse to the computer. 6. Press the power button on the back to start up your computer.

IMac inch Late Lower Exploded View

Cable, Power, AC DC, SATA, Inverter 922-7761 Cable, Ground, Power Supply 922-7760 AirPort, Antenna, Wireless 922-7764, Left 922-7766, Right Rear Housing 922-7769 Ambient Light Sensor 922-7250 SDRAM, SO-DIMM 661-4114 512 MB, DDR2, 667 661-4115 1GB, DDR2, 667 Modem, External 661-3797 Battery 922-6476 Power Cord 922-7139 Access Tool 922-7172 Wireless Mighty Mouse 661-3662

Opening the Computer

Apple authorized, desktop certified technicians only should ever remove the front bezel on the iMac 20-inch Late 2006 . When the front bezel is removed, be sure to always ground yourself and follow ESD-safe repair practices Removing the front bezel requires using a special access card part 922-7172 to release latches located inside the upper corners of the front bezel. Slightly bending the upper quarter of the access tool card will help engage the latch more securely. As you are inserting the...

Removing the Camera Board

Macbook Air Sound Flex Cable

The camera board and cables are visible as you lift the front bezel off the computer. 2. Remove any kapton tape on the cables. Disconnect the camera and microphone cables. 3. Remove any kapton tape covering the camera board. With your fingernail or a black stick, gently lift flip up the flex cable locking hinge to release the flexible camera cable. With your fingers or black stick, flex the two black tabs forward to release the camera board from the camera bracket. 5. Remove the camera board...

IMac inch Late Upper Exploded View

Exploded View Camera Usb

Display Panel, LCD, 661-3895 Samsung 661-3881 LG Shield, EMI, Lower LCD not shown 922-7770 661-4108, 661-4109, 661-4110, 661-4111, 661-4294, 661-4295, 661-4296, 661-4297, Front Bezel, w camera, 20 922-7875 Logic Board 2.16 GHz, 128 2.33 GHz, 128 2.16 GHz, 256 2.33 GHz, 256 2.16 GHz, 128 2.33 GHz, 128 2.16 GHz, 256 2.33 GHz, 256 AirPort Card 661-4060 VZL EEE code , J661-4060 Z661-4060 661-4289 WQX EEE code Front Bezel, w camera, 20 922-7875 Optical Bezel 922-6997, MKE 922-7109, Pioneer - Hard...

Loud fan noise coming from inside the computer

The iMac has a trio of fans that circulate air throughout the system. It also includes temperature sensors, and advanced thermal software that spins the fans fast or slow as needed. As the system usage increases, the fans will adjust their speed using advanced thermal software to meet the cooling needs of the system. Under normal conditions, rotating fans will make a slight hum that varies in relationship with their rotational speed and the amount of air that they are moving. In addition, the...

Replacing the Stand

Imac Bezel

Make sure the stand is erect and the end of the stand is inserted through the mounting hole in the rear housing. 2. Position the clutch on the stand, with the clutch springs at bottom. Install the seven long, clutch-to-stand mounting screws. 3. Adjust the clutch so that its chassis mounting holes align, and install the four screws that secure the clutch to the chassis. 4. Replace the silky EMI tape on top of the mechanism, press it into place. 5. Replace the metal mechanism cover. 6. Replace...