Apple iMac G5 Specifiche Pagina 1

 Service Source© 2005 Apple Computer, Inc. All rights reserved.iMac G5 (20-inch, iSight)14 January 2008

iMac G5 (20-inch iSight) Take Apart — General Information 10Cut the EMI gasket to the edge of the access card. 2. Using packing tape, or something eq

iMac G5 (20-inch iSight) Take Apart —AC Line Filter 100Replacing the AC Line FilterInstall the AC power lter on the rear housing screw mounts with t

iMac G5 (20-inch iSight) Take Apart —Fan, Hard Drive 101Fan, Hard DriveToolsNo tools are required to remove the hard drive fan.• Preliminary StepsBef

iMac G5 (20-inch iSight) Take Apart —Fan, Hard Drive 102Removing the Hard Drive Fan Once the logic board and speakers have been removed, the fan will

iMac G5 (20-inch iSight) Take Apart —Fan, Hard Drive 103Replacing the Hard Drive FanLower the fan onto the white posts in the rear housing. Push it d

iMac G5 (20-inch iSight) Take Apart —Fan, Hard Drive 104Replace the logic board.3. Replace the speakers.4. Replace the display panel.5. Replace the I

iMac G5 (20-inch iSight) Take Apart —Fan, Optical Drive 105Fan, Optical DriveToolsNo tools are required to remove the optical drive fan.• Preliminary

iMac G5 (20-inch iSight) Take Apart —Fan, Optical Drive 106Removing the Optical Drive Fan Once the logic board and speakers have been removed, the fa

iMac G5 (20-inch iSight) Take Apart —Fan, Optical Drive 107Replacing the Optical Drive FanLower the fan onto the white posts in the rear housing, abo

iMac G5 (20-inch iSight) Take Apart —Fan, CPU 108Fan, CPUToolsNo tools are required to remove the CPU fan.• Preliminary StepsBefore you begin, remove

iMac G5 (20-inch iSight) Take Apart —Fan, CPU 109Removing the CPU Fan Once the logic board and speakers have been removed, the fan will already be di

iMac G5 (20-inch iSight) Take Apart — General Information 11Bend the card at a slight angle at the top to make sure the card makes contact with each

iMac G5 (20-inch iSight) Take Apart —Fan, CPU 11 0Replacing the CPU FanLower the fan onto the white standos in the rear housing. Push it down snug o

iMac G5 (20-inch iSight) Take Apart —Power Supply, DC/DC, Inverter 111Power Supply, DC/DC, InverterToolsTorx T10 screwdriver• Preliminary StepsBefore

iMac G5 (20-inch iSight) Take Apart —Power Supply, DC/DC, Inverter 11 2Removing the DC/DC Power Supply/Inverter Using a torx T10 screwdriver, remove

iMac G5 (20-inch iSight) Take Apart —Power Supply, DC/DC, Inverter 11 3Replacing the DC/DC Power Supply/InverterRoute the inverter cable under the me

iMac G5 (20-inch iSight) Take Apart —Ambient Light Sensor Board —11 4Ambient Light Sensor BoardToolsA black stick or equivalent tool • Preliminary Ste

iMac G5 (20-inch iSight) Take Apart —Ambient Light Sensor Board —11 5Removing the Ambient Light Sensor Board Remove the rubber bumper from between the

iMac G5 (20-inch iSight) Take Apart —Ambient Light Sensor Board —116Replace the Ambient Light Sensor BoardPress the sticky side of the ambient light s

iMac G5 (20-inch iSight) Take Apart —Camera and IR Cable 11 7Cable, Camera and IRToolsNo tools are required to remove the camera cable.Preliminary St

iMac G5 (20-inch iSight) Take Apart —Camera and IR Cable 11 8Removing the Camera and IR Cable Remove the two-headed end of the cable from the access

iMac G5 (20-inch iSight) Take Apart —Camera and IR Cable 11 9Replacing the Camera and IR CableInsert the two-headed end of the camera cable through t

iMac G5 (20-inch iSight) Take Apart — General Information 12EMI ShieldingThe iMac enclosure is wrapped in EMI shielding that is easily torn and damag

iMac G5 (20-inch iSight) Take Apart —Wireless Antenna 120Wireless AntennaToolsBlack stick (or other nonconductive nylon or plastic at-blade tool)• P

iMac G5 (20-inch iSight) Take Apart —Wireless Antenna 121Part Location

iMac G5 (20-inch iSight) Take Apart —Wireless Antenna 12 2Removing the Wireless Antenna Cable Carefully peel back the EMI Faraday shield and backing

iMac G5 (20-inch iSight) Take Apart —Wireless Antenna 12 3Replacing the Wireless Antenna CableAttach the antenna board to the top inside of the rear

iMac G5 (20-inch iSight) Take Apart —Clutch 12 4ClutchToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the following:A• ccess do

iMac G5 (20-inch iSight) Take Apart —Clutch 12 5Removing the Clutch Remove the EMI tape attached along the top and bottom sides of the clutch cover.

iMac G5 (20-inch iSight) Take Apart —Clutch 126Stand up the unit, to access the clutch-to-stand mounting screws. 3. Using a T10 torx screwdriver, rem

iMac G5 (20-inch iSight) Take Apart —Clutch 12 7Replacing the ClutchMake sure the stand is erect and the end of the stand is inserted through the mou

iMac G5 (20-inch iSight) Take Apart —Chassis 12 8ChassisToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the following:A• ccess

iMac G5 (20-inch iSight) Take Apart —Chassis 129Part LocationRemoving the Chassis Using a T10 screwdriver, remove 12 self-tapping screws from the cha

iMac G5 (20-inch iSight) Take Apart — General Information 13Lower EMI ShieldEMI tape covers the top and sides of the display panel, and the lower EMI

iMac G5 (20-inch iSight) Take Apart —Chassis 130Replace the ChassisPosition the chassis on the rear housing as shown and install 12 self-tapping moun

iMac G5 (20-inch iSight) Take Apart —Chassis 131Rear HousingToolsNo tools are required to remove the rear housing.Preliminary StepsBefore you begin,

iMac G5 (20-inch iSight) Take Apart —Chassis 132Part LocationRemoving the Rear Housing Using a T10 torx screwdriver, remove 12 self-tapping screws fr

iMac G5 (20-inch iSight) Take Apart —Chassis 133Replace the Rear HousingPosition the chassis on the rear housing as shown and install 12 self-tapping

iMac G5 (20-inch iSight) Take Apart —Stand 134StandToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the following:A• ccess doorF

iMac G5 (20-inch iSight) Take Apart —Stand 135Removing the Stand Stand up the unit, to access the clutch-to-stand mounting screws. 1. Using a T10 tor

iMac G5 (20-inch iSight) Take Apart —Stand 13 6Replacing the StandMake sure the stand is erect and the end of the stand is inserted through the mount

iMac G5 (20-inch iSight) Take Apart —Stand 137

 Service Source© 2005 Apple Computer, Inc. All rights reserved.TroubleshootingiMac G5 (20-inch, iSight)

iMac G5 (20-inch iSight) Troubleshooting — General Info 13 9General InformationSerial Number LocationiMac G5 (iSight) serial numbers are located on t

iMac G5 (20-inch iSight) Take Apart — General Information 14When properly repaired, all edges shown below will be wrapped by EMI tape, and the tape s

iMac G5 (20-inch iSight) Troubleshooting — General Info 140Turn over the unit and place it screen-up, with the bottom facing toward you.4. Tilt up th

iMac G5 (20-inch iSight) Troubleshooting — General Info 141Repeat step 6 to release the locking mechanism in the opposite upper corner.7. 8. Lay th

iMac G5 (20-inch iSight) Troubleshooting — General Info 142Lift the front bezel straight up to remove it. Then swing the bezel upright onto its top e

iMac G5 (20-inch iSight) Troubleshooting — General Info 143To protect the computer from electrostatic discharge, ground yourself by touching the meta

iMac G5 (20-inch iSight) Troubleshooting — General Info 144The four labelled diagnostic LEDs shown below. 14. LED 1: • Indicates that trickle volta

iMac G5 (20-inch iSight) Troubleshooting — General Info 145Testing Under PowerUsing the diagnostic LEDs to check for power issues requires powering o

iMac G5 (20-inch iSight) Troubleshooting — General Info 146SMU (System Management Unit)The iMac G5 (iSight) uses an advanced system management unit (

iMac G5 (20-inch iSight) Troubleshooting — General Info 147PortsThe iMac G5 (20-inch iSight) ports are shown below.DDR MemoryiMac G5 (20-inch iSight)

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 14 8Symptom ChartsHow to Use the Symptom ChartsThe Symptom Charts included in this chapter

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 149Power IssuesNo Power. The iMac G5 will not turn on. The display has no picture or color

iMac G5 (20-inch iSight) Take Apart — General Information 15

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 150Plug the power cord into the iMac G5 and into the AC outlet. Check to see if diagnostic

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 151Turn the computer on by pressing the power button on the rear of the case. Go to the nex

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 15 2Audible buzzing, whining, or ticking noiseThe iMac G5 (iSight) contains several mechani

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 15 3No VideoThe computer will turn on, but the display has no picture or color. The boot ch

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 154Turn on the computer by pressing the power button.8. When the computer starts up, LED 2

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 155Display is tinted another color.Reset the parameter RAM. Press the Command-Option-P-R ke

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 156DisplayWhen displaying a single color over the screen area, the LCD panel shows one or m

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 157Hard DriveFlashing question mark, or an alternating question mark and Mac OS (face or a

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 15 8Optical Drive CDs or DVDs don’t show up on the Desktop.Select Preferences from the Find

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 15 9Select System Preferences from the Apple menu and open the CDs & DVDs preferences 2

iMac G5 (20-inch iSight) Take Apart — Access Door 16Access DoorToolsPhillips #2 screwdriver• ESD-safe workstation and mat• Soft , clean towel or clot

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 160The computer won’t burn discs.Check whether the drive can read CDs and DVDs normally. Pe

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 161No: Replace the optical drive. Does it burn correctly now? Yes: Problem solved. No:

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 162Optical disc constantly ejectsDisconnect all peripheral devices, especially the mouse in

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 163Fan SoundLoud fan noise coming from inside the computerThe iMac G5 (20-inch iSight) has

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 164No: If the fan activity does not coincide with CPU usage, the sound you’re hearing may n

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 165Fans are running at a constant high speedIf the fans on the system are running at a cons

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 166AirPort/BluetoothNot able to connect wirelessly with AirPort or BluetoothFrom the Apple

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 167AirPort signal seems to be very weakCheck the antenna. If the antenna is not plugged in

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 168IR RemoteRemote won’t communicate with system applications such as iTunes or iPhoto, or

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 169IR Sensor/ReceiverSupported applications do not respond to input from the remote control

iMac G5 (20-inch iSight) Take Apart — Access Door 17Removing the Access DoorRaise the stand and use a Phillips #2 screwdriver, to loosen the two capt

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 170Built-in iSight CameraThe built-in camera is not recognized.Boot the iMac G5 to the desk

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 171iChat AV connection doctor feature to verify that there is sucient bandwidth to have a

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 17 2SpeakersCan’t hear sound from the speakers.Disconnect any external microphones, speaker

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 17 3MouseMy mouse doesn’t work at all.Try using the mouse on another surface. Non-reective

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 174KeyboardNone of the keys on my keyboard work.Unplug all devices from your computer, incl

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 175occupied. Go on to step 4.Does your mouse work now? 4. Yes: Replace the keyboard. No: Re

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 17 6Error Beep(s)Computer beeps at startup.Check that the memory DIMMs are iMac G5 (20-inch

iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 17 7USBA USB device doesn’t workPlease unplug all of your USB devices from your iMac except

 Service Source© 2005 Apple Computer, Inc. All rights reserved.ViewsiMac G5 (20-inch, iSight)

iMac G5 (20-inch iSight) — Views 17 9iMac G5 (20-inch iSight)—Upper Exploded ViewFront Bezel, 20”922-6998Camera Board661-3782Camera Board/IR Cable922

iMac G5 (20-inch iSight) Take Apart — Front Bezel 18Front BezelToolsTorx T8 screwdriver• Access card tool 922-7172 • ESD mat, soft , clean towel or c

iMac G5 (20-inch iSight) — Views 180iMac G5 (20-inch iSight)—Lower Exploded ViewFan, Optical Drive922-6991Power Supply AC/DC661-3780Power Supply, DC/

iMac G5 (iSight 20-inch) Views 181Screw ChartiMac (iSight 20-inch) Screws page 1Note: Screws are not to scale.922-6800 T10- AC lter

iMac G5 (iSight 20-inch) Views 182922-7001 T8, round headHard drive pins (2)922-7009 C-Clip for the access door Access

iMac G5 (iSight 20-inch) Views 183922-7162 T6Optical drive ex board to logic board922-7066 T10 Power supply to rear co

iMac G5 (20-inch iSight) Take Apart — Front Bezel 19Removing the Front BezelPosition unit on rear cover (back).1. Tilt up the front bezel and remove

iiiMac G5 (20-inch, iSight)ContentsTake ApartGeneral Information 6Product View 6What’s New 6Tools Required 7Orientation 7Serial Number Location

iMac G5 (20-inch iSight) Take Apart — Front Bezel 20This picture shows how the access tool works. Pushing the tool up the vent on the rear cover 4. r

iMac G5 (20-inch iSight) Take Apart — Front Bezel 21Repeat step 5 to release the locking latch in the right corner. Again, pull the bezel away as 6.

iMac G5 (20-inch iSight) Take Apart — Front Bezel 22Repeat step 7 for the left side. 8. Once the access card has been removed, it is safe to open the

iMac G5 (20-inch iSight) Take Apart — Front Bezel 23Swing the bezel up so you can disconnect two cables on the camera board at the top of the 10. bez

iMac G5 (20-inch iSight) Take Apart — Front Bezel 24Replacing the Front BezelMake sure the black EMI shielding along the top of the LCD panel is not

iMac G5 (20-inch iSight) Take Apart — Front Bezel 25Tuck the cables neatly into the channel on the rear housing. 3. Continue to lower the font bezel

iMac G5 (20-inch iSight) Take Apart — Camera Board 26Camera BoardToolsTorx T6 screwdriver • ESD mat, soft , clean towel or cloth• Preliminary StepsBe

iMac G5 (20-inch iSight) Take Apart — Camera Board 27Removing the Camera BoardThe camera board and cables are visible as you lift the front bezel o

iMac G5 (20-inch iSight) Take Apart — Camera Board 28Remove the two T6 screws on the camera board. 3. Peel back the clear mylar material to free the

iMac G5 (20-inch iSight) Take Apart — Camera Board 29Remove the camera board from the front bezel. 5.

iiiAC Line Filter 97Fan, Hard Drive 101Fan, Optical Drive 105Fan, CPU 108Power Supply, DC/DC, Inverter 111Ambient Light Sensor Board 114Cable, C

iMac G5 (20-inch iSight) Take Apart — Camera Board 30Replacing the Camera BoardReplace the camera board on the front bezel. Carefully align and inser

iMac G5 (20-inch iSight) Take Apart — Camera Board 31Tuck the camera board cables neatly into the channel on the rear housing. 4. Continue to lower t

iMac G5 (20-inch iSight) Take Apart — Lower EMI Shield 32Lower EMI ShieldToolsThe only tool required for this procedure is a black stick (or other no

iMac G5 (20-inch iSight) Take Apart — Lower EMI Shield 33Removing the Lower EMI ShieldCarefully peel the EMI shields o the each side of the lower re

iMac G5 (20-inch iSight) Take Apart — Lower EMI Shield 34Peel the lower EMI shield upward to remove or view the:3. LCD display panel• Speakers• IR bo

iMac G5 (20-inch iSight) Take Apart — Lower EMI Shield 35Replacing the Lower EMI ShieldPosition the lower EMI shield over the bottom of the unit so t

iMac G5 (20-inch iSight) Take Apart — IR Board 36IR BoardToolsThe only tool required for this procedure is a Torx T6 screwdriver.Preliminary StepsBef

iMac G5 (20-inch iSight) Take Apart — IR Board 37Removing the IR BoardDisconnect the IR cable from the IR board connector.1. Using a Torx T6 screwdri

iMac G5 (20-inch iSight) Take Apart — IR Board 38Note4. : If you are replacing the IR cable, you must remove the optical drive and disconnect the ca

iMac G5 (20-inch iSight) Take Apart — IR Board 39Replacing the IR BoardRoute the IR cable as shown below and make sure the cable is connected to the

ivMouse 173Keyboard 174Error Beep(s) 176USB 177ViewsiMac G5 (20-inch iSight)—Upper Exploded View 179iMac G5 (20-inch iSight)—Lower Exploded View

iMac G5 (20-inch iSight) Take Apart — IR Board 40Replace the IR board onto the mounting bracket. Connect the cable and replace the two T6 3. screws.

iMac G5 (20-inch iSight) Take Apart — Display Panel 41LCD Display PanelToolsTorx T6 screwdriver.• Torx T10 screwdriver• Black stick (or other noncond

iMac G5 (20-inch iSight) Take Apart — Display Panel 42Removing the Display PanelUsing your ngers or a black stick, carefully peel the EMI tape o th

iMac G5 (20-inch iSight) Take Apart — Display Panel 43Peel the EMI housing up as shown. 3. Using the access tool, a black stick, or your ngers, pee

iMac G5 (20-inch iSight) Take Apart — Display Panel 44Using the access tool or black stick, peel back the black EMI tape stuck along the entire 5. le

iMac G5 (20-inch iSight) Take Apart — Display Panel 45Using a Torx T6 screwdriver, remove the two TMDS connector screws. Pull the black tab on 6. the

iMac G5 (20-inch iSight) Take Apart — Display Panel 46Lift the panel up just enough to see the inverter cables on the left side. 8. Disconnect the t

iMac G5 (20-inch iSight) Take Apart — Display Panel 47Raise the panel up the rest of the way to locate the two inverter cables on the top left side o

iMac G5 (20-inch iSight) Take Apart — Display Panel 48Replacing the Display PanelReplace the TMDS cable on the rear of the display panel.1. If remove

iMac G5 (20-inch iSight) Take Apart — Memory 49MemoryToolsPhillips #2 screwdriver• ESD mat, soft , clean towel or cloth• Preliminary StepsBefore you

 Service Source© 2005 Apple Computer, Inc. All rights reserved.Take ApartiMac G5 (20-inch, iSight)

iMac G5 (20-inch iSight) Take Apart — Memory 50Removing the MemoryAfter removing the access door, touch the metal frame around the memory compartment

iMac G5 (20-inch iSight) Take Apart — Memory 51Replacing the MemoryInsert the memory module into the memory compartment. The module ts in the slot o

iMac G5 (20-inch iSight) Take Apart — Speakers 52SpeakersToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the following:A• ccess

iMac G5 (20-inch iSight) Take Apart — Speakers 53Removing the SpeakersUsing a T10 torx screwdriver, remove the screws from the left and right speaker

iMac G5 (20-inch iSight) Take Apart — Speakers 54Remove the IR mounting bracket screws. Lift the bracket o the logic board to free the 3. speaker ca

iMac G5 (20-inch iSight) Take Apart — Speakers 55Under the right speaker, disconnect the speaker cable from the logic board. 5.

iMac G5 (20-inch iSight) Take Apart — Speakers 56Replacing the SpeakersConnect the speaker cable to the logic board. 1. Install the speakers and rou

iMac G5 (20-inch iSight) Take Apart — Speakers 57Install the IR board and two T6 screws to the IR mounting bracket.6. Replace the display panel.7. R

iMac G5 (20-inch iSight) Take Apart — AirPort Extreme/Bluetooth Card 58AirPort Extreme/Bluetooth CardToolsTorx T6 screwdriver• Preliminary StepsBefor

iMac G5 (20-inch iSight) Take Apart — AirPort Extreme/Bluetooth Card 59Removing the AirPort Extreme/Bluetooth CardUsing a T6 torx screwdriver, remove

iMac G5 (20-inch iSight) Take Apart — General Information 6General InformationProduct ViewWhat’s NewJanuary 2008Take Apart: Corrupted graphic in the

iMac G5 (20-inch iSight) Take Apart — AirPort Extreme/Bluetooth Card 60Replacing the AirPort Extreme/Bluetooth CardConnect the two antenna cables to

iMac G5 (20-inch iSight) Take Apart — Optical Drive 61Optical DriveToolsTorx T10 screwdriver• Torx T6 screwdriver• Needlenose pliers (with teeth)• Pr

iMac G5 (20-inch iSight) Take Apart — Optical Drive 62Removing the Optical DriveLooking at the circles below, starting with the top circle, do the fo

iMac G5 (20-inch iSight) Take Apart — Optical Drive 63Note2. : Make sure to use a needlenose pliers with teeth to remove the optical drive. The plie

iMac G5 (20-inch iSight) Take Apart — Optical Drive 64Caution: Never press down on or grasp the body (silver) of the optical drive when removing or i

iMac G5 (20-inch iSight) Take Apart — Optical Drive 65This photo shows the optical drive out of the computer so you can visualize how the clips 5. mo

iMac G5 (20-inch iSight) Take Apart — Optical Drive 66If replacing the optical drive, disconnect the sensor cable from the optical sensor located on

iMac G5 (20-inch iSight) Take Apart — Optical Drive 67Replacing the Optical DriveInstall the black sensor cable and the ex cable to the optical driv

iMac G5 (20-inch iSight) Take Apart — Optical Drive 68Connect the optical drive sensor to the logic board, attach the ex cable and secure it with 3.

iMac G5 (20-inch iSight) Take Apart — Optical Drive 69Handling Slot-Load Optical DrivesFollow the instructions in this section carefully. This proced

iMac G5 (20-inch iSight) Take Apart — General Information 7Tools RequiredThe following tools are required to service the computer. Note that a specia

iMac G5 (20-inch iSight) Take Apart — Optical Drive 70Handle the drive only by the sides and back edge.• Do not touch the front of the drive.•

iMac G5 (20-inch iSight) Take Apart — Optical Drive 71Do not press on the drive or lift it by the top and bottom cover. • Do not handle the drive by

iMac G5 (20-inch iSight) Take Apart — Optical Drive 72When storing optical drives, use approved packaging boxes. Never stack loose drives.• When retu

iMac G5 (20-inch iSight) Take Apart — Hard Drive 73Hard DriveToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the following:A• c

iMac G5 (20-inch iSight) Take Apart — Hard Drive 74Removing the Hard DriveRemove the two T10 screws attaching the hard drive to the DC/DC inverter bo

iMac G5 (20-inch iSight) Take Apart — Hard Drive 75The hard drive sensor is dierent from the optical drive sensor. The hard drive sensor can be 3. i

iMac G5 (20-inch iSight) Take Apart — Hard Drive 76Disconnect the hard drive power and data cables. 5. If you are replacing the hard drive, remove

iMac G5 (20-inch iSight) Take Apart — Hard Drive 77Replacing the Hard DriveAttach the hard drive sensor and sensor cable to the side of the hard driv

iMac G5 (20-inch iSight) Take Apart — Hard Drive 78Route the hard drive sensor cable under the metal chassis. Connect the sensor cable to the 3. logi

iMac G5 (20-inch iSight) Take Apart — Hard Drive 79Secure the two T10 screws on the hard drive mounting bracket to the DC/DC/inverter board.5. Replac

iMac G5 (20-inch iSight) Take Apart — General Information 8SafetyWarning: When the iMac G5 (iSight) is under power, be aware that the power supply co

iMac G5 (20-inch iSight) Take Apart —Power Supply, AC/DC 80Power Supply, AC/DCToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove th

iMac G5 (20-inch iSight) Take Apart —Power Supply, AC/DC 81Removing the AC/DC Power Supply WARNING: The AC/DC power supply PCB remains powered up whe

iMac G5 (20-inch iSight) Take Apart —Power Supply, AC/DC 82Lift the power supply up and remove the cable and connector from under the chassis. This

iMac G5 (20-inch iSight) Take Apart —Power Supply, AC/DC 83Replacing the AC/DC Power SupplyWARNING: The AC/DC power supply PCB remains powered up whe

iMac G5 (20-inch iSight) Take Apart —Power Supply, AC/DC 84Tuck the cables under the DC/DC power supply/inverter and the metal chassis as shown. 2. R

iMac G5 (20-inch iSight) Take Apart —Power Supply, AC/DC 85Replace the display panel.8. Replace the lower EMI shield.9. Replace the front bezel.10. R

iMac G5 (20-inch iSight) Take Apart —Logic Board 86Logic BoardToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the following:A•

iMac G5 (20-inch iSight) Take Apart —Logic Board 87Removing the Logic Board Remove the AirPort Extreme/Bluetooth card from the logic board. Disconnec

iMac G5 (20-inch iSight) Take Apart —Logic Board 88Using a T10 torx screwdriver, remove the seven screws on the board. Remove the self-3. tapping scr

iMac G5 (20-inch iSight) Take Apart —Logic Board 89Note:5. If the replacement logic board doesn’t have the support brackets (shown below) installed

iMac G5 (20-inch iSight) Take Apart — General Information 9Opening the ComputerApple authorized, desktop certied technicians only should ever remove

iMac G5 (20-inch iSight) Take Apart —Logic Board 90Lift the board enough to disconnect the hard drive data cable located on the underside of 7. the

iMac G5 (20-inch iSight) Take Apart —Logic Board 91When handling the logic board, hold the board as shown below. 9. Important: Never handle or carry

iMac G5 (20-inch iSight) Take Apart —Logic Board 92Replacing the Logic BoardPosition all the logic board cables out of the way (except for the hard d

iMac G5 (20-inch iSight) Take Apart —Logic Board 93Connect the hard drive data cable to the underside of the board (on the left side). 4. Note: The

iMac G5 (20-inch iSight) Take Apart —Logic Board 94Replace the optical drive sensor cable, ex cable and screws, and the silver EMI tape. 6. Using a

iMac G5 (20-inch iSight) Take Apart —Logic Board 95

iMac G5 (20-inch iSight) Take Apart —Logic Board 96Connect the following cables to the connectors on the logic board. Connectors are shown 8. starti

iMac G5 (20-inch iSight) Take Apart —AC Line Filter 97AC Line FilterToolsTorx T10 screwdriver• Preliminary StepsBefore you begin, remove the followin

iMac G5 (20-inch iSight) Take Apart —AC Line Filter 98Removing the AC Line Filter Using a torx T10 screwdriver, remove the three self-tapping screws

iMac G5 (20-inch iSight) Take Apart —AC Line Filter 99Disconnect the AC lter cable from the power supply. Notice the routing of the AC lter 3. cabl