Apple 24-inch User Manual

© 2007 Apple Inc. All rights reserved. Service SourceiMac (24-inch Mid 2007) Updated 16 December 2008

iMac (24-inch Mid 2007) Take Apart — General Information 10General InformationProduct ViewOpening the ComputerImportant: • The glass panel on the iM

iMac (24-inch Mid 2007) Take Apart — Inverter Cable 100Clean and replace the glass panel9. . Note: This step is very important. Follow the procedure

iMac (24-inch Mid 2007) Take Apart — Speaker, Right 101Speaker, RightToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the followi

iMac (24-inch Mid 2007) Take Apart — Speaker, Right 102Removing the Right Speaker1. Remove the T10 screw from the right speaker. Replacement Note: T

iMac (24-inch Mid 2007) Take Apart — Speaker, Right 103Replacing the Right SpeakerInstall the speaker in the computer assembly.1. Connect the speaker

iMac (24-inch Mid 2007) Take Apart — Optical Drive Fan 104Optical Drive FanToolsNo tools are required to remove the optical drive fan.• Preliminary S

iMac (24-inch Mid 2007) Take Apart — Optical Drive Fan 105Removing the Optical Drive Fan Disconnect the fan cable from the logic board and lift the f

iMac (24-inch Mid 2007) Take Apart — Optical Drive Fan 106Replacing the Optical Drive FanLower the fan onto the guide posts in the rear cover. Connec

iMac (24-inch Mid 2007) Take Apart — CPU Fan 107CPU FanToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the following:Access door

iMac (24-inch Mid 2007) Take Apart — CPU Fan 108Removing the CPU Fan Peel back the foam gasket that is attached to the top of the fan.1. Disconnect t

iMac (24-inch Mid 2007) Take Apart — CPU Fan 109Replacing the CPU FanLower the fan onto the guide posts in the rear housing. Push it down onto the po

iMac (24-inch Mid 2007) Take Apart — General Information 11Serial Number Location On the bottom of your iMac stand, you’ll nd a label with the seria

iMac (24-inch Mid 2007) Take Apart — Power Supply, AC/DC 11 0Power Supply, AC/DCToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove

iMac (24-inch Mid 2007) Take Apart — Power Supply, AC/DC 111Removing the AC/DC Power Supply Warning: HIGH VOLTAGE: The AC/DC power supply PCB remains

iMac (24-inch Mid 2007) Take Apart — Power Supply, AC/DC 11 2Lift the power supply up to access the connectors on the underside. Pinch the black tab

iMac (24-inch Mid 2007) Take Apart — Power Supply, AC/DC 11 3Disconnect the AC power inlet cable from the power supply. The cable is tucked neatly 5.

iMac (24-inch Mid 2007) Take Apart — Power Supply, AC/DC 11 4Replacing the AC/DC Power SupplyWarning: The AC/DC power supply PCB remains powered up w

iMac (24-inch Mid 2007) Take Apart — Power Supply, AC/DC 11 5Connect the AC inlet cable and tuck the connector into the slot (see arrow) on the right

iMac (24-inch Mid 2007) Take Apart — Power Supply, AC/DC 11 65. Replace the four T10 power supply screws. Install the machine screws (on the right s

iMac (24-inch Mid 2007) Take Apart — Hard Drive 11 7Hard DriveToolsTorx T10 screwdriver• Torx T8 screwdriver (if removing clip from hard drive)• Prel

iMac (24-inch Mid 2007) Take Apart — Hard Drive 11 8Removing the Hard DriveDisconnect the hard drive temperature sensor cable from the top of the log

iMac (24-inch Mid 2007) Take Apart — Hard Drive 11 9Disconnect the power and data cables from right side of the hard drive.3. Lift the hard drive fro

iMac (24-inch Mid 2007) Take Apart — General Information 12General Tools The following tools are required to service the computer:ESD-safe workstatio

iMac (24-inch Mid 2007) Take Apart — Hard Drive 1207. At the upper side of the drive, remove the two screws and the plastic clip.922-7019

iMac (24-inch Mid 2007) Take Apart — Hard Drive 121Replacing the Hard DriveIf you are installing a new hard drive, transfer the screws, clip, and tem

iMac (24-inch Mid 2007) Take Apart — Hard Drive 12 2Press the hard drive the rest of the way into the rear housing. You will hear a snap when the 4.

iMac (24-inch Mid 2007) Take Apart — Hard Drive 12 3Connect the other end of the temperature sensor cable to the logic board.6. Replace the display p

iMac (24-inch Mid 2007) Take Apart — Hard Drive Sensor Cable 12 4Hard Drive Sensor CableToolsNo tools are required for this procedure.Preliminary Ste

iMac (24-inch Mid 2007) Take Apart — Hard Drive Sensor Cable 12 5Removing the Hard Drive Sensor Cable Disconnect the temperature sensor cable from it

iMac (24-inch Mid 2007) Take Apart — Hard Drive Sensor Cable 126Replacing the Hard Drive Sensor CableConnect the sensor cable to the hard drive and t

iMac (24-inch Mid 2007) Take Apart — Optical Drive 12 7Optical DriveToolsTorx T8 screwdriver• Torx T6 screwdriver• Preliminary StepsBefore you begin,

iMac (24-inch Mid 2007) Take Apart — Optical Drive 12 8Removing the Optical DriveWarning: When servicing the optical drive, handle it by the edges on

iMac (24-inch Mid 2007) Take Apart — Optical Drive 1293. Tilt up the optical drive, remove the two T6 screws on the ex cable board. Remove the ex

iMac (24-inch Mid 2007) Take Apart — General Information 13Cleaning Tools Starter KitThe following tools are oered in the starter kit (076-1277).Suc

iMac (24-inch Mid 2007) Take Apart — Optical Drive 130If you are replacing the optical drive, transfer the ex cable to the replacement drive. The 5.

iMac (24-inch Mid 2007) Take Apart — Optical Drive 131Replacing the Optical DriveCaution: Never press down on or grasp the body of the optical drive

iMac (24-inch Mid 2007) Take Apart — Optical Drive 13 2Replace the EMI mesh tape.4. Important: Make sure the EMI mesh tape does not cover any of th

iMac (24-inch Mid 2007) Take Apart — Optical Flex Cable 133Optical Flex CableToolsT6 torx screwdriver• Preliminary StepsBefore you begin, remove the

iMac (24-inch Mid 2007) Take Apart — Optical Flex Cable 134Removing the Optical Flex CableRemove the two T6 screws from the cable attached to the log

iMac (24-inch Mid 2007) Take Apart — Optical Sensor Cable 13 5Optical Sensor CableToolsNo tools are required to remove the sensor cable• Preliminary

iMac (24-inch Mid 2007) Take Apart — Optical Sensor Cable 13 6Removing the Optical Sensor Cable Disconnect the temperature sensor cable from the conn

iMac (24-inch Mid 2007) Take Apart — Optical Sensor Cable 137Replacing the Optical Sensor CableCaution: Never press down on or grasp the body of the

iMac (24-inch Mid 2007) Take Apart — Optical Sensor Cable 13 8Replace the optical drive3. .Replace the display panel.4. Replace the front bezel5. .

iMac (24-inch Mid 2007) Take Apart — Logic Board 139Logic BoardToolsTorx T8 screwdriver• Torx T10 screwdriver• Preliminary StepsBefore you begin, rem

iMac (24-inch Mid 2007) Take Apart — General Information 14View of the Main ModulesView of the Rear Housing and CablesInside the rear housing you can

iMac (24-inch Mid 2007) Take Apart — Logic Board 140Removing the Logic Board Remove the two T6 screws from the optical ex cable attached to the logi

iMac (24-inch Mid 2007) Take Apart — Logic Board 1413. Remove the thirteen screws from the logic board. Note that the machine screw location has an

iMac (24-inch Mid 2007) Take Apart — Logic Board 142Lift the logic board up and out of the rear housing. 6. Important: When handling the logic boar

iMac (24-inch Mid 2007) Take Apart — Logic Board 143This shows the tamper-proof label on the top side of the logic board.9.

iMac (24-inch Mid 2007) Take Apart — Logic Board 144Replacing the Logic BoardIf you removed the logic board to access another module, reinstall the b

iMac (24-inch Mid 2007) Take Apart — Logic Board 145As you lower the board into the rear housing, line up the two T8 screw holes on the right 4. and

iMac (24-inch Mid 2007) Take Apart — Logic Board 1467. Replace the machine screw rst; then replace the self-tapping screws.Replace the two T6 scre

iMac (24-inch Mid 2007) Take Apart — Logic Board 147Replace the front bezel10. .Clean and replace the glass panel11 . . Note: This step is very im

iMac (24-inch Mid 2007) Take Apart — Video Card 148Video CardToolsTorx T8 screwdriver• Preliminary StepsBefore you begin, remove the following:Access

iMac (24-inch Mid 2007) Take Apart — Video Card 149Removing the Video Card 1. Remove the two 7mm screws on the left and the one 4mm screw on the rig

iMac (24-inch Mid 2007) Take Apart — General Information 15Back ViewThe input/output ports are located on the bottom left side on the back of the com

iMac (24-inch Mid 2007) Take Apart — Video Card 150When handling the video card, hold it by the heat pipe brace as demonstrated on the iMac 3. (24-in

iMac (24-inch Mid 2007) Take Apart — Video Card 151Replacing the Video CardConnect the video card to the logic board, lining up the gold ngers on th

iMac (24-inch Mid 2007) Take Apart — Video Card 152Replace the right speaker4. .Replace the display panel.5. Replace the front bezel6. .Clean and r

iMac (24-inch Mid 2007) Take Apart — Hard Drive Fan 153Hard Drive FanToolsNo tools are required to remove the hard drive fan.Preliminary StepsBefore

iMac (24-inch Mid 2007) Take Apart — Hard Drive Fan 154Removing the Hard Drive Fan 1. Once the logic board has been removed, the fan will already be

iMac (24-inch Mid 2007) Take Apart — Hard Drive Fan 155Replacing the Hard Drive FanInstall the hard drive fan onto the guide posts.1. Replace the log

iMac (24-inch Mid 2007) Take Apart — Audio Board 156Audio BoardToolsTorx T6 screwdriver• Preliminary StepsBefore you begin, remove the following:Acce

iMac (24-inch Mid 2007) Take Apart — Audio Board 157Removing the Audio Board1. Remove the four T6 screws.Disconnect the left speaker cable, the micr

iMac (24-inch Mid 2007) Take Apart — Audio Board 158Replacing the Audio Board1. Install the audio board onto the logic board. Replace the four T6 s

iMac (24-inch Mid 2007) Take Apart — Hard Drive Data Cable 159Hard Drive Data CableToolsTorx T10 screwdriver• Wire cutters• Preliminary StepsBefore y

iMac (24-inch Mid 2007) Take Apart — General Information 16I/O PortsThe input/output ports from left to right are:Headphone out/optical digital audio

iMac (24-inch Mid 2007) Take Apart — Hard Drive Data Cable 160Removing the Hard Drive Data CableRemove the clear tape securing the data cable to the

iMac (24-inch Mid 2007) Take Apart — Hard Drive Data Cable 161Replacing the Hard Drive Data CableInstall the hard drive data cable on top of the chas

iMac (24-inch Mid 2007) Take Apart — Clutch Cover 162Clutch CoverToolsNo tools are required for this procedure.Preliminary StepsBefore you begin, rem

iMac (24-inch Mid 2007) Take Apart — Clutch Cover 163Removing the Clutch CoverPeel up the EMI tape from the top, bottom, and sides of the clutch cove

iMac (24-inch Mid 2007) Take Apart — Clutch Cover 164Replacing the Clutch CoverReplace the metal clutch cover, and make sure the EMI tape holds the t

iMac (24-inch Mid 2007) Take Apart — Stand 165StandToolsAccess card to remove the stand• Torx T10 screwdriver• Soft, clean cloth• Preliminary StepsNo

iMac (24-inch Mid 2007) Take Apart — Stand 166Removing the Stand Place the computer face down on a table so that the base of the stand extends over t

iMac (24-inch Mid 2007) Take Apart — Stand 167Remove the access card, and remove the eight T10 clutch-to-stand screws. 3. Separate the stand from th

iMac (24-inch Mid 2007) Take Apart — Stand 168Replacing the StandAlign the pin on the clutch mechanism to the central hole in the stand.1. Position

iMac (24-inch Mid 2007) Take Apart — Stand 169Insert the access card as far as it will go. Gently lift the stand approximately two inches to 4. unloc

iMac (24-inch Mid 2007) Take Apart — General Information 17Cleaning and Handling the Glass Panel The iMac (24-inch Mid 2007) model has a glass panel

iMac (24-inch Mid 2007) Take Apart — Chassis 170ChassisToolsTorx T8 screwdriver• Preliminary StepsAccess door• Glass panel • Front bezel• LCD Panel

iMac (24-inch Mid 2007) Take Apart — Chassis 171Part LocationRemoving the Chassis 1. Remove seventeen chassis screws and the AC power inlet ground s

iMac (24-inch Mid 2007) Take Apart — Chassis 172Pull the ground screw cable through the opening in the chassis.2. Lift the chassis out of the rear ho

iMac (24-inch Mid 2007) Take Apart — Chassis 173Replacing the ChassisPosition the chassis into the rear housing. Line up the screw holes at the top w

iMac (24-inch Mid 2007) Take Apart — Chassis 174Clean and replace the glass panel16. . Note: This step is very important. Follow the procedures to e

iMac (24-inch Mid 2007) Take Apart — Clutch Mechanism 175Clutch MechanismToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the fol

iMac (24-inch Mid 2007) Take Apart — Clutch Mechanism 176Removing the Clutch Mechanism1. Using a torx T10 screwdriver, remove the four clutch mounti

iMac (24-inch Mid 2007) Take Apart — Clutch Mechanism 17 7Replacing the Clutch Mechanism1. Align the mechanism, and install the four screws that sec

iMac (24-inch Mid 2007) Take Apart — Clutch Mechanism 17 8Install the eight long, clutch-to-stand mounting screws.5. Replace the metal clutch cover.

iMac (24-inch Mid 2007) Take Apart — Clutch Mechanism 179Insert the access card as far as it will go. Gently lift the stand approximately two inches

iMac (24-inch Mid 2007) Take Apart — General Information 18Do’s and Don’tsDOHandle glass panel using lint free gloves.• Use only a sticky silicone ro

iMac (24-inch Mid 2007) Take Apart — AC Power Inlet 180AC Power InletToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the followi

iMac (24-inch Mid 2007) Take Apart — AC Power Inlet 181Part Location

iMac (24-inch Mid 2007) Take Apart — AC Power Inlet 182Removing the AC Power InletNote the cable routing between the chassis frame and the rear cover

iMac (24-inch Mid 2007) Take Apart — AC Power Inlet 183Remove the 3. chassis.Remove the AC power inlet from the rear housing4.

iMac (24-inch Mid 2007) Take Apart — AC Power Inlet 184Replacing the AC Power InletPosition the AC power inlet into the rear housing.1. Route the AC

iMac (24-inch Mid 2007) Take Apart — AC Power Inlet 185Route the ground cable through the opening in the chassis. Replace the four AC inlet screws. 4

iMac (24-inch Mid 2007) Take Apart — Camera Cable 186Camera CableToolsNo tools are required to remove the camera/microphone cable.Preliminary StepsBe

iMac (24-inch Mid 2007) Take Apart — Camera Cable 187Removing the Camera Cable Remove the seventeen chassis screws. Lift the chassis o the rear hous

iMac (24-inch Mid 2007) Take Apart — Camera Cable 188Remove any tape securing the camera cable to the rear housing. 3. Lift the camera cable from the

iMac (24-inch Mid 2007) Take Apart — Camera Cable 189Replacing the Camera CableRoute the camera cable into the rear housing.1. Tape the camera cable

iMac (24-inch Mid 2007) Take Apart — General Information 19SafetyWARNING: HIGH VOLTAGE: The highlighted module below is an AC/DC power supply that p

iMac (24-inch Mid 2007) Take Apart — Camera Cable 190Replace the hard drive.4. Replace the optical fan.5. Replace the optical drive6. , ex drive ca

iMac (24-inch Mid 2007) Take Apart — Microphone Cable 191Microphone CableToolsNo tools are required to remove the microphone cable.Preliminary StepsB

iMac (24-inch Mid 2007) Take Apart — Microphone Cable 192Removing the Microphone Cable Remove the chassis screws. Lift the chassis o the rear housin

iMac (24-inch Mid 2007) Take Apart — Microphone Cable 193Near the middle of the rear housing, remove the two T8 screws on the cable guide 3. Remove a

iMac (24-inch Mid 2007) Take Apart — Microphone Cable 194Replacing the Camera/Microphone CableRoute the camera cable as shown below. Tape the camera

iMac (24-inch Mid 2007) Take Apart — Microphone Cable 195Replace the piece of EMI tape at the top of the rear housing, covering the exposed piece of

iMac (24-inch Mid 2007) Take Apart — Microphone Cable 196

iMac (24-inch Mid 2007) Take Apart — DC Power Cable 197DC Power CableToolsNo tools are required to remove the DC power cable• Preliminary StepsBefore

iMac (24-inch Mid 2007) Take Apart — DC Power Cable 198Removing the Power Supply CableRemove the right pressure wall sitting on top of the chassis. T

iMac (24-inch Mid 2007) Take Apart — DC Power Cable 199Lift the DC power cable out of the rear housing. Note the cable routing between the guide 4. p

ii Apple Inc.© 2007 Apple Inc. All rights reserved.Under the copyright laws, this document may not be copied, in whole or in part, without the writte

iMac (24-inch Mid 2007) Take Apart — General Information 20EMI ShieldingThe rear cover of the computer is wrapped in EMI shielding that is easily tor

iMac (24-inch Mid 2007) Take Apart — DC Power Cable 200Replacing the Power Supply CableInstall the power supply cable into the rear housing as shown

iMac (24-inch Mid 2007) Take Apart — DC Power Cable 201Replace the cpu fan.4. Replace the power supply5. .Replace the hard drive.6. Replace the op

iMac (24-inch Mid 2007) Take Apart — Rear Cover 202Rear CoverToolsNo tools are required to remove the rear cover.Preliminary StepsBefore you begin, r

iMac (24-inch Mid 2007) Take Apart — Rear Cover 203Part LocationRemoving the Rear CoverWith all of the preliminary steps performed, the rear cover is

iMac (24-inch Mid 2007) Take Apart — Rear Cover 204Replacing the Rear CoverReplace the mechanism.1. Replace the stand.2. Replace the mechanism cover3

© 2007 Apple Inc. All rights reserved. Service Source TroubleshootingiMac (24-inch Mid 2007)

iMac (24-inch Mid 2007) Take Apart — General Information 206 General InformationSerial NumberThe serial number for the iMac (24-inch 2007) model is

iMac (24-inch Mid 2007) Take Apart — General Information 207Power On Self Test (POST)Intel-based Mac computers such as the iMac (24-inch 2007) rely o

iMac (24-inch Mid 2007) Take Apart — General Information 208Reconnect your keyboard and mouse to the computer.5. Press the power button on the back t

iMac (24-inch Mid 2007) Take Apart — General Information 209Diagnostic LEDsThe iMac (24-inch 2007) has four built-in diagnostic LEDs on the main logi

iMac (24-inch Mid 2007) Take Apart — Access Door 21Access DoorToolsPhillips #2 screwdriver• ESD-safe workstation and mat• Soft , clean towel or cloth

iMac (24-inch Mid 2007) Take Apart — General Information 210LED #4Indicates that the computer and the LCD display panel are communicating. This LED w

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 211Symptom ChartsWhen to Use the Symptom ChartsBefore turning to the symptom charts, you should h

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 212Power IssuesNo PowerThe computer will not turn on. The display remains black and there are no

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 2138. Press the power button. Check to see if LED # 2 comes On, comes on momentarily, or stays O

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 214No Video, Boot Chime Heard The computer will turn on, the boot chime can be heard and activity

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 215persists. LED # 4 is LED # 4 is O: The video card and logic board are unable to communicate t

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 216applications, make sure all software updates have been applied to the computer. Make sure all

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 217Display PanelBlack and white splotches on the LCD panel after it runs for awhileCheck the hard

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 21824 up to 8 up to 10 up to 15 9 or more 11 or more 16 or moreIf the number of subpixel anomalie

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 219Hard Drive IssuesNote: The following information is for Intel-based and PPC Macintosh drive co

iMac (24-inch Mid 2007) Take Apart — Access Door 22Removing the Access DoorDisconnect all cables and the power cord from your iMac.1. Place a soft, c

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 220Optical Drive CDs or DVDs don’t show up on the Desktop.Select Preferences from the Finder menu

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 221Select System Preferences from the Apple menu and open the CDs & DVDs preferences 2. windo

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 222The computer won’t burn discs.Check whether the drive can read CDs and DVDs normally. Perform

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 223No: Replace the optical drive. Does it burn correctly now? Yes: Problem solved. No: Replac

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 224Optical disc constantly ejects.Disconnect all peripheral devices, especially the mouse in case

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 225Fan SoundFans running at full speed after the computer turns onThe customer may have entered a

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 226sound is related to one of the components. Go to step 4. The sound varies: Under normal condi

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 227remove the access door, front bezel, and EMI shield. Stand up the computer, plug it in, and s

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 228Fans are running at a constant high speed.If the fans on the system are running at a constant

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 229Machine Loud, Fails Apple Hardware Test for HD Temp SensorMake sure the LCD temp sensor cable

iMac (24-inch Mid 2007) Take Apart — Memory 23MemoryThis computer comes with a minimum of 1GB of 667 MHz PC2-5300 Double Data Rate 2 (DDR2) Small Out

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 230AirPortNot able to connect wirelessly with AirPortFrom the Apple menu, choose About this Mac.

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 2 31BluetoothBluetooth devices won’t sync with my computerMake sure the computer has a Bluetooth

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 232IR RemoteRemote won’t communicate with system applications such as iTunes or iPhoto, or with t

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 233IR Sensor/ReceiverSupported applications do not respond to input from the remote control.Perfo

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 234Built-in iSight CameraThe built-in camera is not recognized.Boot the 1. computer to the deskt

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 235iChat AV connection doctor feature to verify that there is sucient bandwidth to have a video

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 236SpeakersCan’t hear sound from the speakers.Disconnect any external microphones, speakers, or h

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 237MouseThe scroll bar on my mouse does not work in all directions.See Knowledge Base article 302

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 238KeyboardCertain keys or none of the keys on the keyboard function.Unplug all devices from your

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 239The USB port on my keyboard doesn’t work.Unplug all devises from your keyboard.1. Plug your Ap

iMac (24-inch Mid 2007) Take Apart — Memory 24Removing the MemoryShut down the computer, and disconnect all cables including the power cord.1. Holdin

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 240Error Beep(s)Power On Self Test (POST) TonesIntel-based Mac computers such as the iMac (20-inc

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 241USBA USB device doesn’t work.Please unplug all of your USB devices from your iMac except your

iMac (24-inch Mid 2007) Take Apart — Symptom Charts 242

© 2007 Apple Inc. All rights reserved. Service Source ViewsiMac (24-inch Mid 2007)

iMac (24-inch Mid 2007) Views 244iMac (24-inch, Mid 2007)—Upper Exploded ViewLCD Assembly, 24”661-4431 Front Bezel922-8181Glass Panel, Cover9

iMac (24-inch Mid 2007) Views 245iMac (24-inch 2007)—Lower Exploded ViewVideo Card661-4426 ATI Radeon HD 2600 Pro, 256 MBSDRAM Access Door922-8186Log

iMac (24-inch Mid 2007) Views — Screw Chart 246Screw ChartScrew Chart: Page 1 of 3 Note: Screws are not to scale.922-6800T10-Power supply to left P-w

iMac (24-inch Mid 2007) Views — Screw Chart 247Screw Chart: Page 2 of 3 922-7069T10AC power inlet to chassis ground (1)922-8174T10Stand to clutch mec

iMac (24-inch Mid 2007) Views — Screw Chart 248Screw Chart: Page 3 of 3 922- 8175T8Logic board, each side of memory slot (2)922- 6800 T10Power supply

iMac (24-inch Mid 2007) Views — Screw Chart 249

iMac (24-inch Mid 2007) Take Apart — Memory 25Replacing the MemoryWith the computer face down, orient the notch on the DIMM with the notch in the mem

iMac (24-inch Mid 2007) Take Apart — Glass Panel 26Glass PanelToolsThis procedure requires the following tools, which are oered individually or as p

iMac (24-inch Mid 2007) Take Apart — Glass Panel 27Cleaning and Handling of the Glass Panel The iMac (24-inch Mid 2007) model has a glass panel that

iMac (24-inch Mid 2007) Take Apart — Glass Panel 28DOHandle glass panel using lint free gloves.• Use only a sticky silicone roller to clean the insid

iMac (24-inch Mid 2007) Take Apart — Glass Panel 29Magnets on the Front BezelThe glass panel has a thin silver ferrous metal band axed to the perime

iiiiMac (24-inch Mid 2007)ContentsManual Updates 716 December 2008 721 March 2008 719 December 2007 710 December 2007 87 November 2007 8Take Apa

iMac (24-inch Mid 2007) Take Apart — Glass Panel 30Removing the Glass PanelApple 1. strongly recommends wearing clean lint-free gloves whenever hand

iMac (24-inch Mid 2007) Take Apart — Glass Panel 314. Gently press the suction cups in opposite corners on the glass panel, as shown. Important: Mak

iMac (24-inch Mid 2007) Take Apart — Glass Panel 32Touching only the edges of the glass, slide the glass panel into the microfoam static-free 7. bag

iMac (24-inch Mid 2007) Take Apart — Glass Panel 33Replacing the Glass PanelPut on a pair of clean gloves with the rubberized-side of the gloves on t

iMac (24-inch Mid 2007) Take Apart — Glass Panel 34Holding the sticky paper with your free hand, clean the silicone roller on the sticky paper 5. by

iMac (24-inch Mid 2007) Take Apart — Glass Panel 35REMINDER: WEAR CLEAN GLOVES AND ONLY HANDLE THE GLASS BY THE EDGES.7. Stand the computer upright

iMac (24-inch Mid 2007) Take Apart — Glass Panel 36Clean the 11 . INSIDE of the glass panel with the clean silicone roller. Gently roll the clean s

iMac (24-inch Mid 2007) Take Apart — Glass Panel 3713 . Clean the outside of the glass panel with a clean microber cleaning cloth. If necessary, s

iMac (24-inch Mid 2007) Take Apart — Glass Panel 38Installing a Replacement Glass PanelStand the computer upright. 1. Note: Fewer dust particles wil

iMac (24-inch Mid 2007) Take Apart — Glass Panel 39Clean the INSIDE surface of the glass panel with the silicone roller. Gently roll the clean 5. si

ivBattery 52IR (Infrared) Board 55AirPort Extreme Card 58Bluetooth Card 62LCD Temp Sensor and Cable 65Speaker, Left 71LCD Display Panel 76Ambie

iMac (24-inch Mid 2007) Take Apart — Glass Panel 40Peel the protective lm from the outside surface of the glass panel. If the glass panel pulls 7.

iMac (24-inch Mid 2007) Take Apart — Glass Panel 41Cleaning Tools Starter KitThe following tools are oered in the starter kit (076-1277).Suction cup

iMac (24-inch Mid 2007) Take Apart — Glass Panel 42Ultra Violet Inspection LampAn optional tool used to detect dust and contamination is the ultra vi

iMac (24-inch Mid 2007) Take Apart — Front Bezel 43Front BezelToolsThis procedure requires the following tools:Torx T8 screwdriver• Soft, clean towel

iMac (24-inch Mid 2007) Take Apart — Front Bezel 44Removing the Front BezelPlace the computer on a soft protective lint-free surface such as a very c

iMac (24-inch Mid 2007) Take Apart — Front Bezel 45With the upper corners loosened, lift up—but do not remove—the bezel.4. Notice the connected micro

iMac (24-inch Mid 2007) Take Apart — Front Bezel 46Continue lifting the front bezel toward you and o the rear housing.6.

iMac (24-inch Mid 2007) Take Apart — Front Bezel 47Replacing the Front BezelPlace the computer on a soft protective lint-free surface such as a very

iMac (24-inch Mid 2007) Take Apart — Front Bezel 48Replace the twelve screws around the bezel. 5. The two longer screws (30mm) attach to the bezel

iMac (24-inch Mid 2007) Take Apart — Camera Board 49Camera BoardToolsTorx T8 screwdriver • ESD mat, soft , clean towel or cloth• Preliminary StepsBef

vChassis 170Clutch Mechanism 175AC Power Inlet 180Camera Cable 186Microphone Cable 191DC Power Cable 197Rear Cover 202TroubleshootingGeneral In

iMac (24-inch Mid 2007) Take Apart — Camera Board 50Removing the Camera BoardThe camera board bracket and cable are visible after you remove the fron

iMac (24-inch Mid 2007) Take Apart — Camera Board 51Replacing the Camera BoardConnect the camera cable to the camera board. Reapply the kapton tape o

iMac (24-inch Mid 2007) Take Apart — Battery 52BatteryToolsThe only tool required for this procedure is a black stick (or other nonconductive plastic

iMac (24-inch Mid 2007) Take Apart — Battery 53Removing the BatteryUse a black stick to pry out the battery from the battery socket on the logic boar

iMac (24-inch Mid 2007) Take Apart — Battery 54Replacing the BatteryMake sure the battery socket is open and free of dust.1. Press the battery into t

iMac (24-inch Mid 2007) Take Apart — IR (Infrared) Board 55IR (Infrared) BoardToolsThe only tool required for this procedure is a Torx T6 screwdriver

iMac (24-inch Mid 2007) Take Apart — IR (Infrared) Board 56Removing the IR Board1. Remove the two T6 screws from IR board and disconnect the IR cabl

iMac (24-inch Mid 2007) Take Apart — IR (Infrared) Board 57Replacing the IR BoardConnect the IR cable to the IR board.1. Install the IR board and T6

iMac (24-inch Mid 2007) Take Apart — AirPort Extreme Card 58AirPort Extreme CardToolsTorx T6 screwdriver• Preliminary StepsBefore you begin, remove t

iMac (24-inch Mid 2007) Take Apart — AirPort Extreme Card 59Removing the AirPort Extreme Card1. Using a T6 torx screwdriver, remove the one 5-mm lon

vi

iMac (24-inch Mid 2007) Take Apart — AirPort Extreme Card 60Replacing the AirPort Extreme CardAlign the AirPort Extreme card with the slot on the log

iMac (24-inch Mid 2007) Take Apart — AirPort Extreme Card 61Replace the front bezel3. .Clean and replace the glass panel4. . Note: This step is ver

iMac (24-inch Mid 2007) Take Apart — Bluetooth Card 62Bluetooth CardToolsTorx T6 screwdriver• Preliminary StepsBefore you begin, remove the following

iMac (24-inch Mid 2007) Take Apart — Bluetooth Card 63Removing the Bluetooth Card1. Using a T6 torx screwdriver, remove the two 5-mm long screws fro

iMac (24-inch Mid 2007) Take Apart — Bluetooth Card 64Replacing the Bluetooth Card1. Press the Bluetooth card onto the logic board connector. Connec

iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 65LCD Temp Sensor and CableToolsA black stick or equivalent tool to peel the tape and

iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 66Removing the Display Temp Sensor and Sensor CablePeel back any kapton tape securing

iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 67Replacing the Temp Sensor CableConnect the LCD temp sensor cable to the sensor at th

iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 68Connect the inverter cable to the inverter board on the rear of the display panel. R

iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 69Connect the display temp sensor cable to the left side of the logic board.7. Instal

iMac (24-inch Mid 2007) Take Apart — Manual Updates 7Manual Updates16 December 2008Take ApartPower Supply-->Replacing the Power Supply--> Added

iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 70Replace the front bezel9. .Clean and replace the glass panel10. . Note: This step

iMac (24-inch Mid 2007) Take Apart — Speaker, Left 71Speaker, LeftToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the following:

iMac (24-inch Mid 2007) Take Apart — Speaker, Left 72Removing the Left Speaker1. Using a T10 torx screwdriver, remove the long screw from the left s

iMac (24-inch Mid 2007) Take Apart — Speaker, Left 73Lift the speaker out of the rear housing.3.

iMac (24-inch Mid 2007) Take Apart — Speaker, Left 74Replacing the Left Speaker1. Install the speaker in the rear housing. Secure the left speaker w

iMac (24-inch Mid 2007) Take Apart — Speaker, Left 75Replace the display panel.3. Replace the front bezel4. .Clean and replace the glass panel5. .

iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 76LCD Display PanelToolsTorx T6 screwdriver• Torx T8 screwdriver• Preliminary StepsBefore you

iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 77Removing the Display PanelPlace the computer with the display face up.1. 2. Remove the two

iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 784. Remove the eight T8 screws from the sides of the panel frame.Grasp the LCD panel at the

iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 79Replacement Note6. : If replacing the display panel, disconnect the LVDS cable from the pan

iMac (24-inch Mid 2007) Take Apart — Manual Updates 810 December 2007The following chapters have been updated:Take ApartThe AC Power Inlet take apart

iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 80Replacing the Display PanelConnect the LVDS cable to the rear of the display panel.1. Connec

iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 81Connect the display temp sensor cable to the left side of the logic board.7. Install 8. th

iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 82Replace the front bezel9. .Clean and replace the glass panel10. . Note: This step is very

iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor Cable 83Ambient Temperature Sensor CableToolsNo tools are required for this procedure

iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor Cable 84Removing the Ambient Temperature Sensor CableDisconnect the ambient temp sens

iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor Cable 85Replacing the Ambient Temperature Sensor CableConnect the cable to the sensor

iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor Cable 86Connect the sensor cable and the fan cable to the logic board.3. Replace the

iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor 87Ambient Temperature SensorToolsBlack stick (or other nonconductive nylon or plastic

iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor 88Removing the Ambient Temperature SensorDisconnect the ambient temperature sensor ca

iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor 89Replacing the Ambient Temperature SensorReplacement Note:1. If you are replacing

© 2007 Apple Inc. All rights reserved. Service Source Take ApartiMac (24-inch Mid 2007)

iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor 90Connect the temperature sensor cable and the fan cable to the logic board.3. Replac

iMac (24-inch Mid 2007) Take Apart — LVDS Cable 91LVDS CableToolsTorx T6 screwdriver• Soft, clean towel or cloth• Preliminary StepsBefore you begin,

iMac (24-inch Mid 2007) Take Apart — LVDS Cable 92Removing the LVDS CableWith the display face down on a soft cloth, peel up the two strips of black

iMac (24-inch Mid 2007) Take Apart — LVDS Cable 93Replacing the LVDS CableConnect the LVDS cable to the rear of the display panel.1. Replace the clea

iMac (24-inch Mid 2007) Take Apart — LVDS Cable 94Connect the LCD temp sensor cable to the bottom left corner of the logic board. Tuck any 7. extra

iMac (24-inch Mid 2007) Take Apart — LVDS Cable 95Replace the front bezel9. .Clean and replace the glass panel10. . Note: This step is very importa

iMac (24-inch Mid 2007) Take Apart — Inverter Cable 96Inverter CableToolsNo tools are required to remove the inverter cable• Preliminary StepsBefore

iMac (24-inch Mid 2007) Take Apart — Inverter Cable 97Removing the Inverter CableDisconnect the inverter cable from the back of the display panel.1.

iMac (24-inch Mid 2007) Take Apart — Inverter Cable 98Replacing the Inverter CableRemove the LCD panel from the ESD bag.1. Connect the inverter cable

iMac (24-inch Mid 2007) Take Apart — Inverter Cable 996. Connect the LVDS cable to the logic board. Replace the two T6 screws.7. Install the eight