Apple iMac (Slot Loading) Specifications

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Summary of Contents

Page 1 - Special Edition

Service Source K iMac, iMac DV, iMac DVSpecial Edition

Page 2

Basics Features - 7 Memory • 64 MB SDRAM (good/better), 128 MB SDRAM (best) of PC-100 SDRAM (168-pin, running at 100 MHz• two DIMM slots support up

Page 3

Take Apart AirPort Card - 18 4. Remove the ground clip from the AirPort Adapter Card.5. Using the pull tab, separate the AirPort Card from the adap

Page 4 - Overview

Take Apart CD/HD Carrier - 19 CD/HD Carrier Before you begin, position the computer upside down, resting the computer on an ESD mat or other soft su

Page 5 - Basics Overview - 2

Take Apart CD/HD Carrier - 20 1. Remove the four screws (two on each side) connecting the CD/HD drive carrier to the divider panel (the metal chassi

Page 6 - New Technologies

Take Apart CD/HD Carrier - 21 2. Disconnect the following cables fro the back of the CD/HD carrier:• hard drive power cable• hard drive data cable •

Page 7 - FireWire

Take Apart CD/HD Carrier - 22 3. Tilt the CD/HD carrier forward and lift the carrier out of the computer. Note: Continue with the Take Apart proce

Page 8 - VGA Output Port

Take Apart CD-ROM / DVD-ROM - 23 CD-ROM / DVD-ROM Note: The procedures for removing a CD-ROM or DVD-ROM are identical. This procedure will referen

Page 9 - Features

Take Apart CD-ROM / DVD-ROM - 24 1. Using a Phillips screwdriver, remove the CD/HD carrier mounting screws (two on each side).

Page 10

Take Apart CD-ROM / DVD-ROM - 25 2. Carefully turn the CD/HD drive carrier over. 3. Holding onto the CD-ROM from the rear, lift the CD-ROM carrier o

Page 11 - Communication

Take Apart CD-ROM / DVD-ROM - 26 4. Using a jeweler’s screwdriver, remove the four screws (two on each side) on the CD/DVD carrier.5. Lift the CD-RO

Page 12

Take Apart CD-ROM / DVD-ROM - 27 6. On the back of the CD-ROM, use a jeweler’s screwdriver to remove the two screws on the adapter board.7. Remove t

Page 13 - L2 Cache

Basics Features - 8 Graphics Support • ATI RAGE 128 VR 4x 2D and 3D acceleration• 8 MB video SGRAM, which supports 3D features and millions of co

Page 14 - Main Memory

Take Apart CD-ROM / DVD-ROM - 28 Manual Eject Button The CD/DVD eject mechanism is electrical rather than mechanical on the iMac. If you wish to ej

Page 15 - Graphics Memory

Take Apart CD-ROM / DVD-ROM - 29 paper clip. The button is located on the right side of the CD slot. Note that the power must be on to eject a CD us

Page 16 - CD Drive

Take Apart CD-ROM / DVD-ROM - 30 CD-ROM or DVD-ROM Module Replacement Position the CD-ROM or DVD-ROM into its carrier as shown. 1. Check that the ye

Page 17

Take Apart CD-ROM / DVD-ROM - 31 2. Lower the CD/DVD carrier into the CD/HD carrier. 3. Push the CD/DVD carrier forward so the carrier tabs go thro

Page 18 - Front, Side, and Rear

Take Apart CD-ROM / DVD-ROM - 32 5. As a final check, this is a front view of the CD-ROM or DVD-ROM correctly installed into the CD/HD carrier.

Page 19 - I/O Panel with FireWire

Take Apart CD/DVD Adapter Board - 33 CD/DVD Adapter Board Before you begin, position the computer upside down, resting the computer on an ESD mat or

Page 20 - I/O Panel without FireWire

Take Apart CD/DVD Adapter Board - 34 1. Using a jeweler’s screwdriver, remove the two screws on the CD/DVD adapter board.2. Remove the adapter board

Page 21 - iMac Logic Board

Take Apart Hard Drive - 35 Hard Drive Before you begin, position the computer upside down, resting the computer on an ESD mat or other soft surface

Page 22 - Repair Strategy/Warranty

Take Apart Hard Drive - 36 1. Using a #1 Phillips screwdriver, remove the four hard drive mounting screws. Note: Support the hard drive with one h

Page 23 - USA Ordering

Take Apart Hard Drive - 37 2. Remove the hard drive from the CD/HD carrier. Note: Return the drives without the cables or carriers. Exchange Apple

Page 24 - Warranty

Basics Features - 9 I/O • one 10/100 Mbps Ethernet RJ-45 connector for connection to either a 10Base-T or 100Base-TX hub networks• two external USB

Page 25 - Canada Only

Take Apart Hard Drive - 38 Hard Drive Replacement When installing the hard drive into the CD/HD carrier, make sure the hard drive is component side

Page 26 - Specifications

Take Apart Logic Board - 39 Logic Board Before you begin, position the computer upside down, resting the computer on an ESD mat or other soft surfac

Page 27 - Introduction

Take Apart Logic Board - 40 Note: Remove SDRAM to make cable removal easier.1. On the back of the CD/HD carrier,disconnect the:• hard drive power

Page 28 - iMac, iMac DV, iMac DV

Take Apart Logic Board - 41 3. Remove the five screws on the logic board and five screws on the down converter board. Note: The two screws locat

Page 29

Take Apart Logic Board - 42 4. Gently lift the down converter board and logic board out of the computer.

Page 30 - Block Diagram

Take Apart Logic Board - 43 5. Using a flatblade screwdriver, pry the plastic rivet off the board. Put the top half of the rivet back into the bot

Page 31 - Power Flow

Take Apart Logic Board - 44 6. Holding onto the down converter, press down on the black connector to separate the down converter board from the logi

Page 32 - Testing for Power

Take Apart Logic Board - 45 Identifying 350 MHz Logic Boards (661-2210) There are two 350 MHz logic boards in service stock under the part number 66

Page 33 - At the Logic Board

Take Apart Logic Board - 46 Identifying the Version 2, 350 MHz Logic Board The Version 2 board and the more recent 661-2210 logic board (without th

Page 34

Take Apart Logic Board - 47 The Version 2 board (661-2317) will have a revision number of -09 or -0A on the VLSI chip (as shown). Refer to the Parts

Page 35

Basics Features - 10 iMac Models Comparison CPU Speed • Original iMac: 233 MHz• Rev-B iMac: 233 MHz• 5-color iMacs: 266 MHz or 333 MHz• iMac, iM

Page 36

Take Apart Logic Board - 48 Identifying the 400 MHz Logic Boards There is a new version of the 400 MHz logic board for the iMac DV and iMac Special

Page 37 - The PMU Chip

Take Apart Down Converter Board - 49 Down Converter Board Before you begin, position the computer upside down, resting the computer on an ESD mat or

Page 38

Take Apart Down Converter Board - 50 Note: Remove SDRAM to make cable removal easier.1. On the back of the CD/HD carrier, disconnect the:• hard dr

Page 39 - Power-On Self Test

Take Apart Down Converter Board - 51 3. Remove the five screws on the logic board and five screws on the down converter board. Note: The two down

Page 40 - Power Button

Take Apart Down Converter Board - 52 4. Lift the boards out of the computer.

Page 41 - Logic Board Battery

Take Apart Down Converter Board - 53 5. Using a flatblade screwdriver, pry the rivet off the logic board.Put the top half of the rivet back into the

Page 42

Service Source K Adjustments iMac, iMac DV, iMac DV SpecialEdition

Page 43

Adjustments Adjustment Tools - 1 Adjustment Tools The following items are needed to perform video adjustments on the slot-loading iMacs:• Display Ad

Page 44 - HFS Plus Formatted Drives

Adjustments Adjustment Tools - 2 Light Meter Setup This topic covers setup for light meter Model R77, service part number 076-0310. Note: The adj

Page 45 - Testing the Modem

Adjustments Adjustment Tools - 3 Model R77 Before you begin, remove the 10X multiplier plate from the lens. Three scales are shown on the light mete

Page 46

Basics Features - 11 System Bus Speed • Original iMac: 66 MHz• Rev-B iMac:66 MHz• 5-color iMacs: 66 MHz• iMac, iMac DV, iMac DV Special Edition: 1

Page 47 - Before the Finder Appears

Adjustments Adjustment Tools - 4 To measure a display screen’s luminance,1. Set the scale switch to the bottom position (to set up the 10-50 fc scal

Page 48 - No Power

Adjustments Adjustment Tools - 5 If you suspect the light meter is giving false readings, verify the readings with a known-good light meter or photo

Page 49 - Possible Cause Possible Fix

Adjustments Adjustment Tools - 6 Jumper Adjustment Tool The jumper adjustment tool (922-4165) must be installed to save cutoff and white balance adj

Page 50 - No Video or Unstable Raster

Adjustments Adjustment Tools - 7 ± Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review C

Page 51

Adjustments Adjustment Tools - 8 2. With the power off, remove the left ground cable from the video board.

Page 52 - Gray Screen

Adjustments Adjustment Tools - 9 3. Connect one end of the jumper adjustment tool (922-4165) to the video board pin.4. Connect the other end to one

Page 53 - Error Beep(s)

Adjustments Focus Adjustment - 10 Focus Adjustment ± Warning: This product contains high voltage and a high-vacuum picture tube. To prevent seriou

Page 54 - Flashing Question Mark

Adjustments Focus Adjustment - 11 2. Power on the iMac.3. Open the Display Adjustment Utility and select the Focus test pattern from the Pattern men

Page 55 - System Hangs During Boot

Adjustments Focus Adjustment - 12 4. Adjust the focus control on the flyback transformer until the focus test pattern reaches the best front-of-scre

Page 56

Adjustments Screen Voltage Setup - 13 Screen Voltage Setup ± Warning: This product contains high voltage and a high-vacuum picture tube. To preven

Page 57 - After Startup

Basics Features - 12 Graphics Controller Chip • Original iMac: ATI RAGE IIc• Rev-B iMac: ATI RAGE Pro• 5-color iMacs: ATI RAGE Pro Turbo• iMac, iMac

Page 58 - System Hangs

Adjustments Screen Voltage Setup - 14 1. Remove the bottom housing and the top rear housing to access the flyback transformer that contains the scre

Page 59 - Distorted Video

Adjustments Screen Voltage Setup - 15 2. With the power off, remove the left ground cable from the video board.

Page 60 - Thin White Line

Adjustments Screen Voltage Setup - 16 3. Connect the jumper adjustment tool (922-4165) to the video board pin. Refer to the “Jumper Adjustment Tool”

Page 61 - Tinting Video

Adjustments Screen Voltage Setup - 17 5. Open the Display Adjustment Utility and select the Color tab.6. Set the Contrast to maximum and the Brightn

Page 62 - Garbage Video

Adjustments Screen Voltage Setup - 18 8. Select the Gray Bars test pattern from the Pattern menu.

Page 63

Adjustments Screen Voltage Setup - 19 9. Looking at the Gray Bar test pattern, turn the screen voltage knob on the flyback transformer until:• the

Page 64 - Memory Error Dialog

Adjustments Cutoff Adjustment - 20 Cutoff Adjustment ± Warning: This product contains high voltage and a high-vacuum picture tube. To prevent seri

Page 65 - Can’t Wake From Sleep

Adjustments Cutoff Adjustment - 21 Set the Screen Voltage if you haven’t done so already. Refer to “Screen Voltage Setup” mentioned earlier in this

Page 66 - Network Problems

Adjustments Cutoff Adjustment - 22 3. Connect the jumper adjustment tool (see graphic). Refer to “Jumper Adjustment Tool” mentioned earlier in this

Page 67 - CD_ROM or DVD-ROM Vibration

Adjustments Cutoff Adjustment - 23 5. Open the Display Adjustment Utility and select the Color tab.6. Set the drive and cutoff controls to their mid

Page 68 - CD-ROM or DVD-ROM Won’t Eject

Basics Features - 13 Hard Disk Drive • Original iMac: 4 GB• Rev-B iMac: 4 GB• 5-color iMacs: 6 GB• iMac, iMac DV, iMac DV Special Edition: 6 GB (iMa

Page 69

Adjustments Cutoff Adjustment - 24 used if all the color drive controls are set to zero, and the screen is completely black. The Command-R function

Page 70

Adjustments Cutoff Adjustment - 25 7. Select the Gray Bars test pattern from the Pattern menu.

Page 71 - Hard Drive Problems

Adjustments Cutoff Adjustment - 26 Note: This procedure should be performed in a dimly lit room.8. Look at the Gray Bar Test pattern. • The bars s

Page 72 - Sound Out Problems

Adjustments Cutoff Adjustment - 27 9. Select the Color tab window. 10. Adjust the red, green, and blue cutoff controls until the second bar (from

Page 73 - Sound In Problems

Adjustments Cutoff Adjustment - 28 11.If there is a predominant color in the three bars on the left, continue adjusting the color controls according

Page 74

Adjustments Cutoff Adjustment - 29 12. Click the Save button to save your adjustments.13. Proceed to the white balance adjustment.

Page 75 - USB Problems

Adjustments White Balance - 30 White Balance Before you begin, make sure the:• cutoff is set correctly • monitor has been on for at least 10 minutes

Page 76

Adjustments White Balance - 31 1. Open the Display Service Utility and select the Gray Bars test pattern from the Pattern menu.

Page 77 - Cursor Problems

Adjustments White Balance - 32 2. Adjust the red, green, and blue drive controls until there is no predominant color.

Page 78 - USB Printer Problems

Adjustments White Balance - 33 3. Select “White” from the Pattern menu to display the all-white test pattern. 4. Hold the light meter against the ce

Page 79 - Networked Printer Problems

Basics Features - 14 Data Ports • Original iMac: USB• Rev-B iMac: USB• 5-color iMacs: USB• iMac, iMac DV, iMac DV Special Edition: USB; optional Fir

Page 80 - Modem Not Recognized

Adjustments White Balance - 34 5. Click the Save button to save your settings.6. Restart the computer and reset the parameter RAM (PRAM) to apply th

Page 81 - Modem Dialing Problems

Adjustments White Balance - 35 Note: If you don’t restart the computer, the iMac will display the last settings made on the iMac. 7. Open the Moni

Page 82 - Take Apart

Adjustments White Balance - 36 9. Click the Factory Settings button.

Page 83

Adjustments Geometry Adjustments - 37 Geometry Adjust-ments Before you begin, connect the jumper adjustment tool to the video board (refer to the “J

Page 84 - Procedures

Adjustments Geometry Adjustments - 38 1. Open the Display Adjustment Utility.2. Select the Geometry tab.

Page 85

Adjustments Geometry Adjustments - 39 3. Select a resolution for adjustment from the Resolution menu. Note: Don’t use the control strip or Monitor

Page 86

Adjustments Geometry Adjustments - 40 4. Adjust the geometry settings by moving the appropriate slider bar.5. Click the Save button to save the adju

Page 87 - 5. Lift the bottom housing

Adjustments Geometry Adjustments - 41 7. To reset the PRAM, hold down the <Command><Option><P> and <R> keys after Restart is

Page 88 - Replacement Caution:

Adjustments Geometry Adjustments - 42 10. Click on the Factory Settings button in the Geometry window. 11. Close the Monitor control panel. Note:

Page 89 - EMI Cover

Adjustments S Correction Adjustment - 43 S Correction Adjustment 1. Open the Display Adjustment Utility and select “White Grid” from the Pattern men

Page 90 - 1. Remove the six screws

Basics Views - 15 Views Front, Side, and Rear View

Page 91

Adjustments S Correction Adjustment - 44 3. Open the Display Adjustment Utility, and select the Geometry tab.4. If the squares need adjusting, move

Page 92

Adjustments S Correction Adjustment - 45 6. When all the squares look uniform on the S Correction test pattern, go back to the Geometry tab window a

Page 93 - SDRAM DIMM

Adjustments S Correction Adjustment - 46 Note: If you don’t restart the computer, the iMac will display the last settings made on the iMac. 8. Ope

Page 94

Adjustments S Correction Adjustment - 47 10. Click on the Factory Settings button in the Geometry window. Note: Before returning the iMac to the c

Page 95

Adjustments Sticking Power Button - 48 Sticking Power Button Apple has found that the largest contributor to a stuck power button is an improperly

Page 96

Adjustments Sticking Power Button - 49 from either the front power button or the keyboard• Intermittent shut down or sleep: the computer will random

Page 97

Adjustments Sticking Power Button - 50 Repair Order. Enter the adjustment part number 011-0206, “Power Button/LED Alignment” into the appropriate se

Page 98

Adjustments LED Alignment Procedure - 51 LED Alignment Procedure 1. Remove the four screws that secure the bottom housing to the computer.

Page 99

Adjustments LED Alignment Procedure - 52 2. Lift the bottom housing off the computer.

Page 100

Adjustments LED Alignment Procedure - 53 3. Position the iMac so that it is directly in front of you. 4. Looking straight on at the inner power butt

Page 101 - CD/HD Carrier

Basics Views - 16 I/O Panel with FireWire

Page 102

Adjustments LED Alignment Procedure - 54 5. If the LED is not centered properly (as shown in the top graphic), use a small plastic video alignment t

Page 103

Adjustments LED Alignment Procedure - 55 7. Replace the bottom housing, making sure to align the tabs on the front.8. If the button continues to sti

Page 104

Adjustments LED Alignment Procedure - 56 Inner Bezel Sanding 1. Remove the inner power button so that the LED is exposed, as shown in the graphic.2.

Page 105 - CD-ROM / DVD-ROM

Adjustments LED Alignment Procedure - 57 slight uniform radius around the entire edge of the button recess.3. Clean out the inner button recess maki

Page 106

Adjustments LED Alignment Procedure - 58 adjustment part number 011-0206, “Power Button/LED Alignment” into the appropriate section in AppleOrder.

Page 107 - Important:

Take Apart Down Converter Board - 54 6. Holding onto the boards, press down on the black connector and separate the down converter board from the lo

Page 108

Take Apart Modem - 5 5 ModemBefore you begin, position the computer upside down, resting the computer on an ESD mat or other soft surface and remove

Page 109

Take Apart Modem - 5 61. With the logic board facing right side up, disconnect the cable at J12.2. Remove the two screws on the I/O panel.

Page 110 - Manual Eject Button

Take Apart Modem - 5 73. Turn the logic board to the underside and remove the modem screw.

Page 111

Take Apart Modem - 5 84. Rotate the logic board right side up again. Carefully slide the I/O panel off the logic board.Note: As you slide the I/O pa

Page 113

Basics Views - 17 I/O Panel without FireWire

Page 114

Take Apart Modem - 5 9Modem ReplacementThe I/O panel and the modem are sandwiched between the logic board and the metal frame of the I/O panel. The m

Page 115 - CD/DVD Adapter

Take Apart I/O Panel - 60I/O PanelBefore you begin, position the computer upside down, resting the computer on an ESD mat or other soft surface and r

Page 116

Take Apart I/O Panel - 611. Disconnect the cable at J12, going from the logic board to the I/O panel.2. Remove the two screws on the I/O panel.

Page 117 - Hard Drive

Take Apart I/O Panel - 623. Turn the logic board over and remove the modem screw.

Page 118

Take Apart I/O Panel - 634. Rotate the logic board face up again and carefully slide the I/O panel off the logic board.Note: As you slide the I/O pa

Page 119

Take Apart Front Outer Bezel - 64Front Outer BezelBefore you begin, place the computer on an ESD mat and remove the bottom housing.

Page 120 - Hard Drive Replacement

Take Apart Front Outer Bezel - 651. With a jeweler’s screwdriver, carefully remove the two tabs on the front outer bezel. Refer to the next graphic f

Page 121 - Logic Board

Take Apart Front Outer Bezel - 662. After removing the tabs, remove the screws located under the tabs.

Page 122

Take Apart Front Outer Bezel - 67Note: The bezel tabs fit tightly into the rear housing. A good, hard pull upward is required to release all the ta

Page 123

Take Apart Front Outer Bezel - 686. As the tabs start to release, pull hard on the front outer bezel to release the tabs completely.

Page 124

Basics Views - 18 iMac Logic Board

Page 125

Take Apart Top Rear Housing - 69Top Rear Housing±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious inju

Page 126 - Replacement Note:

Take Apart Top Rear Housing - 701. Remove the two tabs (screw caps) on the top inner bezel. Refer to the next page for a close-up of the tab removal.

Page 127

Take Apart Top Rear Housing - 712. Pry the tabs off, and remove the two screws under each tab.

Page 128 - 350 MHz Logic Board

Take Apart Top Rear Housing - 723. Position the computer face down. 4. Remove four screws and loosen the fixed screw (at the top) on the rear housing

Page 129

Take Apart Top Rear Housing - 735. Position the computer right side up. Push down and pull out on the rear housing to unhook the rear housing tabs th

Page 130

Take Apart Top Rear Housing - 746. Lift the top rear housing off the computer.

Page 131 - Down Converter Board

Take Apart Divider Panel - 75Divider Panel Note: The divider panel is only the metal chassis with EMI foam, part number 922-4044. Many service par

Page 132

Take Apart Divider Panel - 76±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safe

Page 133

Take Apart Divider Panel - 771. Disconnect the microphone connector located near the top of the CRT.2. Disconnect the anode cap.3. Unwrap the bendabl

Page 134

Take Apart Divider Panel - 784. Lift the degauss cable out of the way to access the side panel screws.5. Using a narrow shaft screwdriver, remove the

Page 135

Basics Repair Strategy/Warranty - 19 Repair Strategy/Warranty Strategy and Ordering The iMac (350 MHz), iMac DV, and iMac DV Special Edition include

Page 136 - Adjustments

Take Apart Divider Panel - 796. Open the CRT cable clamps. Remove the wires from the cable clamps.

Page 137 - Adjustment Tools

Take Apart Divider Panel - 807. Partially lift the side panels (with the power/analog/video board attached to the divider panel) up and off the inner

Page 138 - Light Meter Setup

Take Apart Divider Panel - 818. Disconnect P501 and P701 on the power/analog/video board. The cables are located near the high voltage capacitor.

Page 139 - Model R77

Take Apart Divider Panel - 829. On the other side of the CRT neck, disconnect the brown degauss cable, P901, from the power/analog/video board.10. Re

Page 140

Take Apart Divider Panel - 8311. At the very bottom of the power/analog/video board, near the bottom of the CRT, disconnect P902, which is part of th

Page 141 - Caution:

Take Apart Divider Panel - 8412. Disconnect the two black ground cables going to the video board. Caution: Be careful when working around the CRT ne

Page 142 - Jumper Adjustment

Take Apart Divider Panel - 8513. Loosen the CRT neck clamp screw.

Page 143 - Warning:

Take Apart Divider Panel - 8614. Carefully pull the video board off the CRT neck.

Page 144

Take Apart Divider Panel - 8715. Lift and remove the entire divider panel assembly off the inner bezel. Note: Continue with the Take Apart procedure

Page 145

Take Apart Divider Panel - 8816. Remove the following parts to replace the divider panel shown on the next page.

Page 146 - Focus Adjustment

Basics Repair Strategy/Warranty - 20 Large businesses, universities, and K-12 accounts must provide a purchase order on all transactions, including

Page 147

Take Apart Divider Panel - 8917.This is the divider panel, service part number 922-4044.

Page 148

Take Apart Power/Analog/Video Board - 90Power/Analog/Video BoardBefore you begin, discharge the CRT, rest the computer on an ESD mat or other soft su

Page 149 - Screen Voltage

Take Apart Power/Analog/Video Board - 91±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, revi

Page 150

Take Apart Power/Analog/Video Board - 924. Lift the degauss cable out of the way to access the side panel screws.5. Using a narrow shaft screwdriver,

Page 151

Take Apart Power/Analog/Video Board - 936. Open the CRT cable clamps. Remove the wires from the cable clamps.

Page 152

Take Apart Power/Analog/Video Board - 947. Partially lift the side panels (with the power/analog/video board attached to the divider panel) up and of

Page 153

Take Apart Power/Analog/Video Board - 958. Disconnect P501 and P701 on the power/analog/video board. The cables are located near the high voltage cap

Page 154

Take Apart Power/Analog/Video Board - 969. On the other side of the CRT neck, disconnect the brown degauss cable, P901, from the power/analog/video b

Page 155

Take Apart Power/Analog/Video Board - 9710. At the very bottom of the power/analog/video board, near the bottom of the CRT, disconnect P902, which is

Page 156 - Cutoff Adjustment

Take Apart Power/Analog/Video Board - 9811. Disconnect the two ground cables on the video board. Caution: Be careful when working around the CRT nec

Page 157

Basics Repair Strategy/Warranty - 21 For U.S. inquiries, please call Service Provider Support (800-919-2775, option 1). Canadian Ordering Canadian s

Page 158

Take Apart Power/Analog/Video Board - 9912. Loosen the CRT neck clamp screw.

Page 159

Take Apart Power/Analog/Video Board - 10013. Carefully pull the video board off the CRT neck.

Page 160

Take Apart Power/Analog/Video Board - 10114. Holding on to the side panels, lift the power/analog/video board from the inner bezel.

Page 161

Take Apart Power/Analog/Video Board - 10215. Remove the ten screws and pinch the two standoffs to lift the power/analog board off the divider panel.

Page 162

Take Apart Power/Analog/Video Board - 10316. Lift the board up and out, (off the divider panel) lifting the board toward the speakers.Replacement Not

Page 163

Take Apart Power/Analog/Video Board - 104Identifying the Rev. 2 Power/Analog/Video BoardThere is a new revision of the power/analog/video board. The

Page 164

Take Apart Power/Analog/Video Board - 105Important: The switch must be set for the type of the CRT (LG, Samsung, or CPT) in the computer. If the Rev

Page 165

Take Apart Power/Analog/Video Board - 106One way to quicky identify an LG CRT is by the black sticker located on the left side of the CRT. The sticke

Page 166 - White Balance

Take Apart Side Panels - 107Side Panels±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, revie

Page 167

Take Apart Side Panels - 1081. Undo the wire wraps in the top corners or the CRT.2. Lift the degauss cable out of the way to access the side panel sc

Page 168

Basics Repair Strategy/Warranty - 22 and AppleCare repairs. For pricing information, refer to Service Price Pages. Canada Only The iMac, iMac DV, a

Page 169

Take Apart Side Panels - 1093. On the rear of the side panels, remove four screws. These screws connect the side panels to the divider panel (the met

Page 170

Take Apart Side Panels - 1104. At the top rear of the side panels, pull each side panel off the plastic pin.(The left and right side panels are ident

Page 171

Take Apart Side Panels - 1115. Pull the panels out to the sides a bit, and then lift the side panels up and off the computer.

Page 172 - Settings button

Take Apart Side Panels - 1126. Carefully remove the antenna wire from each side panel. 7. Pull the side panel off the metal divider panel. If necessa

Page 173 - Geometry Adjust

Take Apart Antenna - 113Antenna±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT sa

Page 174

Take Apart Antenna - 114• bottom housing • front outer bezel• top rear housing• divider panel assembly

Page 175

Take Apart Antenna - 1151. Remove the three screws and cable clip on the antenna.

Page 176

Take Apart Antenna - 1162. Important: Note how the antenna wire is routed through the side panel before removing. A close-up view of the right panel

Page 177

Take Apart Antenna - 1173. Carefully remove the antenna from the left side panel.

Page 178

Take Apart Antenna - 1184. Before removing the antenna from the divider panel, mark the hole (with a pen tip) that the antenna passes through so you

Page 179 - Adjustment

Service Source K Specifications iMac, iMac DV, iMac DV SpecialEdition

Page 180

Take Apart Speakers - 119 SpeakersBefore you begin, rest the computer on an ESD mat or other soft surface, and remove the bottom housing. The EMI cov

Page 181

Take Apart Speakers - 1201. Disconnect the short speaker cable next to the speaker.2.Note: If you are certain a speaker is faulty, the easiest remo

Page 182

Take Apart Headphone Board - 1 21Headphone Board±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious inju

Page 183

Take Apart Headphone Board - 1 221. Turn the divider panel over. 2. Remove the speaker to access the headphone/audio board screw.3. Using a stubby (s

Page 184 - Sticking Power

Take Apart Power/LED Board - 123Power/LED Board±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injur

Page 185

Take Apart Power/LED Board - 1241. Turn the divider panel over and remove the speaker to access the power/LED board screw.2. Using a stubby screwdriv

Page 186

Take Apart CRT - 1 2 5CRT±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety

Page 187 - Procedure

Take Apart CRT - 1 2 61. Remove the four CRT screws and the ground wire.2. Lift the CRT from the inner bezel.Caution: Be careful when working aroun

Page 188 - 2. Lift the bottom housing

Take Apart CRT - 1 2 7CRT Switch Settings on the Rev. 2 Analog Board There is a new power/analog/video board, part number 661-2315, Rev. 2 that has

Page 189

Take Apart CRT - 1 2 8CRT is by the black sticker located on the left side of the CRT. The sticker covers the LG label. In this situation, the 661-2

Page 190

Specifications Introduction - 1 Introduction Specifications information for this product can be found in the Spec Database, which you can access at

Page 191

Take Apart Microphone - 129Microphone±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review

Page 192 - Inner Bezel Sanding

Take Apart Microphone - 1301. Disconnect the microphone connector.If you can’t access the micropone connector, unwrap the bendable degauss cable wrap

Page 193 - Reimbursement Procedure

Take Apart Microphone - 131Replacing the Microphone1. Insert the microphone into the inner bezel with the loop facing down, toward the CRT. 2. Push t

Page 194

Take Apart Microphone - 1323. Check that the microphone protrudes through the inner bezel hole.

Page 195

Take Apart AirPort Card - 18 4. Remove the ground clip from the AirPort Adapter Card.5. Using the pull tab, separate the AirPort Card from the adap

Page 196 - Note: The modem is located

Take Apart CD/HD Carrier - 19 CD/HD Carrier Before you begin, position the computer upside down, resting the computer on an ESD mat or other soft su

Page 197

Take Apart CD/HD Carrier - 20 1. Remove the four screws (two on each side) connecting the CD/HD drive carrier to the divider panel (the metal chassi

Page 198 - 3. Turn the logic board to

Take Apart CD/HD Carrier - 21 2. Disconnect the following cables fro the back of the CD/HD carrier:• hard drive power cable• hard drive data cable •

Page 199 - Note: As you slide the I/

Take Apart CD/HD Carrier - 22 3. Tilt the CD/HD carrier forward and lift the carrier out of the computer. Note: Continue with the Take Apart proce

Page 200 - Modem Replacement

Take Apart CD-ROM / DVD-ROM - 23 CD-ROM / DVD-ROM Note: The procedures for removing a CD-ROM or DVD-ROM are identical. This procedure will referen

Page 201 - I/O Panel

Service Source K Troubleshooting iMac, iMac DV, iMac DVSpecial Edition

Page 202

Take Apart CD-ROM / DVD-ROM - 24 1. Using a Phillips screwdriver, remove the CD/HD carrier mounting screws (two on each side).

Page 203 - 3. Turn the logic board

Take Apart CD-ROM / DVD-ROM - 25 2. Carefully turn the CD/HD drive carrier over. 3. Holding onto the CD-ROM from the rear, lift the CD-ROM carrier o

Page 204

Take Apart CD-ROM / DVD-ROM - 26 4. Using a jeweler’s screwdriver, remove the four screws (two on each side) on the CD/DVD carrier.5. Lift the CD-RO

Page 205 - Front Outer Bezel

Take Apart CD-ROM / DVD-ROM - 27 6. On the back of the CD-ROM, use a jeweler’s screwdriver to remove the two screws on the adapter board.7. Remove t

Page 206

Take Apart CD-ROM / DVD-ROM - 28 Manual Eject Button The CD/DVD eject mechanism is electrical rather than mechanical on the iMac. If you wish to ej

Page 207 - 2. After removing the tabs

Take Apart CD-ROM / DVD-ROM - 29 paper clip. The button is located on the right side of the CD slot. Note that the power must be on to eject a CD us

Page 208 - Note: The bezel tabs fit

Take Apart CD-ROM / DVD-ROM - 30 CD-ROM or DVD-ROM Module Replacement Position the CD-ROM or DVD-ROM into its carrier as shown. 1. Check that the ye

Page 209

Take Apart CD-ROM / DVD-ROM - 31 2. Lower the CD/DVD carrier into the CD/HD carrier. 3. Push the CD/DVD carrier forward so the carrier tabs go thro

Page 210 - ±Warning: This product

Take Apart CD-ROM / DVD-ROM - 32 5. As a final check, this is a front view of the CD-ROM or DVD-ROM correctly installed into the CD/HD carrier.

Page 211

Take Apart CD/DVD Adapter Board - 33 CD/DVD Adapter Board Before you begin, position the computer upside down, resting the computer on an ESD mat or

Page 212 - 2. Pry the tabs off, and

Troubleshooting Introduction - 1 Introduction This chapter contains basic theory of operations information as well as detailed Symptom/Cure tables,

Page 213

Take Apart CD/DVD Adapter Board - 34 1. Using a jeweler’s screwdriver, remove the two screws on the CD/DVD adapter board.2. Remove the adapter board

Page 214

Take Apart Hard Drive - 35 Hard Drive Before you begin, position the computer upside down, resting the computer on an ESD mat or other soft surface

Page 215 - 6. Lift the top rear housing

Take Apart Hard Drive - 36 1. Using a #1 Phillips screwdriver, remove the four hard drive mounting screws. Note: Support the hard drive with one h

Page 216 - Divider Panel

Take Apart Hard Drive - 37 2. Remove the hard drive from the CD/HD carrier. Note: Return the drives without the cables or carriers. Exchange Apple

Page 217

Take Apart Hard Drive - 38 Hard Drive Replacement When installing the hard drive into the CD/HD carrier, make sure the hard drive is component side

Page 218

Take Apart Logic Board - 39 Logic Board Before you begin, position the computer upside down, resting the computer on an ESD mat or other soft surfac

Page 219

Take Apart Logic Board - 40 Note: Remove SDRAM to make cable removal easier.1. On the back of the CD/HD carrier,disconnect the:• hard drive power

Page 220 - 6. Open the CRT cable

Take Apart Logic Board - 41 3. Remove the five screws on the logic board and five screws on the down converter board. Note: The two screws locat

Page 221

Take Apart Logic Board - 42 4. Gently lift the down converter board and logic board out of the computer.

Page 222

Take Apart Logic Board - 43 5. Using a flatblade screwdriver, pry the plastic rivet off the board. Put the top half of the rivet back into the bot

Page 223

Service Source K Basics iMac, iMac DV, iMac DV SpecialEdition

Page 224

Troubleshooting Block Diagram - 2 Block Diagram The following illustration provides an overview of the iMac inter-nal components and shows how they

Page 225 - Caution: Be careful when

Take Apart Logic Board - 44 6. Holding onto the down converter, press down on the black connector to separate the down converter board from the logi

Page 226 - 13. Loosen the CRT neck

Take Apart Logic Board - 45 Identifying 350 MHz Logic Boards (661-2210) There are two 350 MHz logic boards in service stock under the part number 66

Page 227 - 14. Carefully pull the video

Take Apart Logic Board - 46 Identifying the Version 2, 350 MHz Logic Board The Version 2 board and the more recent 661-2210 logic board (without th

Page 228 - Note: Continue with the

Take Apart Logic Board - 47 The Version 2 board (661-2317) will have a revision number of -09 or -0A on the VLSI chip (as shown). Refer to the Parts

Page 229 - 16. Remove the following

Take Apart Logic Board - 48 Identifying the 400 MHz Logic Boards There is a new version of the 400 MHz logic board for the iMac DV and iMac Special

Page 230 - 922-4044

Take Apart Down Converter Board - 49 Down Converter Board Before you begin, position the computer upside down, resting the computer on an ESD mat or

Page 231 - Power/Analog/Video

Take Apart Down Converter Board - 50 Note: Remove SDRAM to make cable removal easier.1. On the back of the CD/HD carrier, disconnect the:• hard dr

Page 232

Take Apart Down Converter Board - 51 3. Remove the five screws on the logic board and five screws on the down converter board. Note: The two down

Page 233

Take Apart Down Converter Board - 52 4. Lift the boards out of the computer.

Page 234

Take Apart Down Converter Board - 53 5. Using a flatblade screwdriver, pry the rivet off the logic board.Put the top half of the rivet back into the

Page 235

Troubleshooting Power Flow/ - 3 Power Flow Power is controlled in the iMac system by the power/analog board. Once the unit is plugged in, power flo

Page 236

Take Apart Down Converter Board - 54 6. Holding onto the boards, press down on the black connector and separate the down converter board from the lo

Page 237

Take Apart Modem - 5 5 ModemBefore you begin, position the computer upside down, resting the computer on an ESD mat or other soft surface and remove

Page 238

Take Apart Modem - 5 61. With the logic board facing right side up, disconnect the cable at J12.2. Remove the two screws on the I/O panel.

Page 239

Take Apart Modem - 5 73. Turn the logic board to the underside and remove the modem screw.

Page 240 - 12. Loosen the CRT neck

Take Apart Modem - 5 84. Rotate the logic board right side up again. Carefully slide the I/O panel off the logic board.Note: As you slide the I/O pa

Page 241 - 13. Carefully pull the video

Take Apart Modem - 5 9Modem ReplacementThe I/O panel and the modem are sandwiched between the logic board and the metal frame of the I/O panel. The m

Page 242 - 14. Holding on to the side

Take Apart I/O Panel - 60I/O PanelBefore you begin, position the computer upside down, resting the computer on an ESD mat or other soft surface and r

Page 243

Take Apart I/O Panel - 611. Disconnect the cable at J12, going from the logic board to the I/O panel.2. Remove the two screws on the I/O panel.

Page 244 - Replacement Note: If

Take Apart I/O Panel - 623. Turn the logic board over and remove the modem screw.

Page 245 - Identifying the Rev. 2

Take Apart I/O Panel - 634. Rotate the logic board face up again and carefully slide the I/O panel off the logic board.Note: As you slide the I/O pa

Page 246 - Important: The switch

Troubleshooting Testing for Power - 4 Testing for Power The iMac requires trickle voltage (+5 TRKL) in order to power-on. If you are experiencing po

Page 247

Take Apart Front Outer Bezel - 64Front Outer BezelBefore you begin, place the computer on an ESD mat and remove the bottom housing.

Page 248

Take Apart Front Outer Bezel - 651. With a jeweler’s screwdriver, carefully remove the two tabs on the front outer bezel. Refer to the next graphic f

Page 249

Take Apart Front Outer Bezel - 662. After removing the tabs, remove the screws located under the tabs.

Page 250

Take Apart Front Outer Bezel - 67Note: The bezel tabs fit tightly into the rear housing. A good, hard pull upward is required to release all the ta

Page 251 - Note: To separate the left

Take Apart Front Outer Bezel - 686. As the tabs start to release, pull hard on the front outer bezel to release the tabs completely.

Page 252 - Take Apart Side Panels - 111

Take Apart Top Rear Housing - 69Top Rear Housing±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious inju

Page 253

Take Apart Top Rear Housing - 701. Remove the two tabs (screw caps) on the top inner bezel. Refer to the next page for a close-up of the tab removal.

Page 254

Take Apart Top Rear Housing - 712. Pry the tabs off, and remove the two screws under each tab.

Page 255 - • divider panel assembly

Take Apart Top Rear Housing - 723. Position the computer face down. 4. Remove four screws and loosen the fixed screw (at the top) on the rear housing

Page 256 - 1. Remove the three screws

Take Apart Top Rear Housing - 735. Position the computer right side up. Push down and pull out on the rear housing to unhook the rear housing tabs th

Page 257 - Important: Note how the

Troubleshooting Testing for Power - 5 At the Logic Board With the iMac placed with the CRT face down on a soft surface, remove the bottom housing an

Page 258 - 3. Carefully remove the

Take Apart Top Rear Housing - 746. Lift the top rear housing off the computer.

Page 259

Take Apart Divider Panel - 75Divider Panel Note: The divider panel is only the metal chassis with EMI foam, part number 922-4044. Many service par

Page 260 - Speakers

Take Apart Divider Panel - 76±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safe

Page 261 - Note: If you are certain

Take Apart Divider Panel - 771. Disconnect the microphone connector located near the top of the CRT.2. Disconnect the anode cap.3. Unwrap the bendabl

Page 262

Take Apart Divider Panel - 784. Lift the degauss cable out of the way to access the side panel screws.5. Using a narrow shaft screwdriver, remove the

Page 263

Take Apart Divider Panel - 796. Open the CRT cable clamps. Remove the wires from the cable clamps.

Page 264

Take Apart Divider Panel - 807. Partially lift the side panels (with the power/analog/video board attached to the divider panel) up and off the inner

Page 265

Take Apart Divider Panel - 818. Disconnect P501 and P701 on the power/analog/video board. The cables are located near the high voltage capacitor.

Page 266

Take Apart Divider Panel - 829. On the other side of the CRT neck, disconnect the brown degauss cable, P901, from the power/analog/video board.10. Re

Page 267

Take Apart Divider Panel - 8311. At the very bottom of the power/analog/video board, near the bottom of the CRT, disconnect P902, which is part of th

Page 268 - CRT Switch Settings on

Troubleshooting Testing for Power - 6 Testing DCO (Down Converter On) Voltage at C10 on the Logic Board In a No Power situation, first check for +5

Page 269

Take Apart Divider Panel - 8412. Disconnect the two black ground cables going to the video board. Caution: Be careful when working around the CRT ne

Page 270

Take Apart Divider Panel - 8513. Loosen the CRT neck clamp screw.

Page 271

Take Apart Divider Panel - 8614. Carefully pull the video board off the CRT neck.

Page 272 - Replacing the Microphone

Take Apart Divider Panel - 8715. Lift and remove the entire divider panel assembly off the inner bezel. Note: Continue with the Take Apart procedure

Page 273 - 3. Check that the

Take Apart Divider Panel - 8816. Remove the following parts to replace the divider panel shown on the next page.

Page 274

Take Apart Divider Panel - 8917.This is the divider panel, service part number 922-4044.

Page 275

Take Apart Power/Analog/Video Board - 90Power/Analog/Video BoardBefore you begin, discharge the CRT, rest the computer on an ESD mat or other soft su

Page 276

Take Apart Power/Analog/Video Board - 91±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, revi

Page 277

Take Apart Power/Analog/Video Board - 924. Lift the degauss cable out of the way to access the side panel screws.5. Using a narrow shaft screwdriver,

Page 278

Take Apart Power/Analog/Video Board - 936. Open the CRT cable clamps. Remove the wires from the cable clamps.

Page 279

Troubleshooting Testing for Power - 7 Testing J7 for Voltage on the Logic Board The following voltages measure if the down converter is providing t

Page 280

Take Apart Power/Analog/Video Board - 947. Partially lift the side panels (with the power/analog/video board attached to the divider panel) up and of

Page 281

Take Apart Power/Analog/Video Board - 958. Disconnect P501 and P701 on the power/analog/video board. The cables are located near the high voltage cap

Page 282

Take Apart Power/Analog/Video Board - 969. On the other side of the CRT neck, disconnect the brown degauss cable, P901, from the power/analog/video b

Page 283

Take Apart Power/Analog/Video Board - 9710. At the very bottom of the power/analog/video board, near the bottom of the CRT, disconnect P902, which is

Page 284

Take Apart Power/Analog/Video Board - 9811. Disconnect the two ground cables on the video board. Caution: Be careful when working around the CRT nec

Page 285

Take Apart Power/Analog/Video Board - 9912. Loosen the CRT neck clamp screw.

Page 286

Take Apart Power/Analog/Video Board - 10013. Carefully pull the video board off the CRT neck.

Page 287

Take Apart Power/Analog/Video Board - 10114. Holding on to the side panels, lift the power/analog/video board from the inner bezel.

Page 288

Take Apart Power/Analog/Video Board - 10215. Remove the ten screws and pinch the two standoffs to lift the power/analog board off the divider panel.

Page 289

Take Apart Power/Analog/Video Board - 10316. Lift the board up and out, (off the divider panel) lifting the board toward the speakers.Replacement Not

Page 290

Troubleshooting Testing for Power - 8 Testing the Power/Analog Board Fuse First remove the bottom housing, front outer bezel, and the top rear hous

Page 291

Take Apart Side Panels - 104Side Panels±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, revie

Page 292

Take Apart Side Panels - 1051. Undo the wire wraps in the top corners or the CRT.2. Lift the degauss cable out of the way to access the side panel sc

Page 293

Take Apart Side Panels - 1063. On the rear of the side panels, remove four screws. These screws connect the side panels to the divider panel (the met

Page 294

Take Apart Side Panels - 1074. At the top rear of the side panels, pull each side panel off the plastic pin.(The left and right side panels are ident

Page 295

Take Apart Side Panels - 1085. Pull the panels out to the sides a bit, and then lift the side panels up and off the computer.

Page 296

Take Apart Side Panels - 1096. Carefully remove the antenna wire from each side panel. 7. Pull the side panel off the metal divider panel. If necessa

Page 297

Take Apart Antenna - 110Antenna±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT sa

Page 298

Take Apart Antenna - 111• bottom housing • front outer bezel• top rear housing• divider panel assembly

Page 299

Take Apart Antenna - 1121. Remove the three screws and cable clip on the antenna.

Page 300

Take Apart Antenna - 1132. Important: Note how the antenna wire is routed through the side panel before removing. A close-up view of the right panel

Page 301

Troubleshooting The PMU Chip - 9 The PMU Chip The PMU (Power Management Unit) is a microcontroller chip that controls all power functions for the co

Page 302

Take Apart Antenna - 1143. Carefully remove the antenna from the left side panel.

Page 303

Take Apart Antenna - 1154. Before removing the antenna from the divider panel, mark the hole (with a pen tip) that the antenna passes through so you

Page 304

Take Apart Speakers - 116 SpeakersBefore you begin, rest the computer on an ESD mat or other soft surface, and remove the bottom housing. The EMI cov

Page 305

Take Apart Speakers - 1171. Disconnect the short speaker cable next to the speaker.2.Note: If you are certain a speaker is faulty, the easiest remo

Page 306

Take Apart Headphone Board - 1 18Headphone Board±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious inju

Page 307

Take Apart Headphone Board - 1 191. Turn the divider panel over. 2. Remove the speaker to access the headphone/audio board screw.3. Using a stubby (s

Page 308

Take Apart Power/LED Board - 120Power/LED Board±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injur

Page 309

Take Apart Power/LED Board - 1211. Turn the divider panel over and remove the speaker to access the power/LED board screw.2. Using a stubby screwdriv

Page 310

Take Apart CRT - 1 2 2CRT±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety

Page 311

Take Apart CRT - 1 2 31. Remove the four CRT screws and the ground wire.2. Lift the CRT from the inner bezel.Caution: Be careful when working aroun

Page 312

Troubleshooting Resetting the PMU on the Logic Board - 10 Resetting the PMU on the Logic Board Resetting the PMU (Power Management Unit) on the logi

Page 313

Take Apart Microphone - 124Microphone±Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review

Page 314

Take Apart Microphone - 1251. Disconnect the microphone connector.If you can’t access the micropone connector, unwrap the bendable degauss cable wrap

Page 315

Take Apart Microphone - 126Replacing the Microphone1. Insert the microphone into the inner bezel with the loop facing down, toward the CRT. 2. Push t

Page 316

Take Apart Microphone - 1273. Check that the microphone protrudes through the inner bezel hole.

Page 317

Adjustments LED Alignment Procedure - 55 7. Replace the bottom housing, making sure to align the tabs on the front.8. If the button continues to sti

Page 318

Adjustments LED Alignment Procedure - 56 Inner Bezel Sanding 1. Remove the inner power button so that the LED is exposed, as shown in the graphic.2.

Page 319

Adjustments LED Alignment Procedure - 57 slight uniform radius around the entire edge of the button recess.3. Clean out the inner button recess maki

Page 320

Adjustments LED Alignment Procedure - 58 adjustment part number 011-0206, “Power Button/LED Alignment” into the appropriate section in AppleOrder.

Page 321

Service Source K Upgrades iMac, iMac DV, iMac DV SpecialEdition

Page 322

Upgrades - 1 Memory The iMac comes with a minimum of 64 MB of SDRAM and can be expanded to a maximum of 512 MB.Install a memory module that meets t

Page 323

Troubleshooting Power-On Self Test - 11 Power-On Self Test There is a power-on self test that resides in the ROM of the iMac. This test automaticall

Page 324

Upgrades - 2 Note: Place a soft towel or cloth on the desk or surface. Position the screen face down on the cloth.1. Using a flatblade screwdrive

Page 325

Upgrades - 3 3. Touch the EMI cover that is visible inside the recessed latch area before touching any components on the main logic board. This pro

Page 326

Upgrades - 4 4. Push the ejector tabs on the slots outward and down so they are in the open position.

Page 327

Upgrades - 5 5. Align the notches on the memory module with the small notches inside the slot.6. Push down on the DIMM until it snaps into place. T

Page 328

Upgrades - 6 Option–S when restarting the computer. This preserves the Setup Assistant experience (a movie and setup instructions) for the custom

Page 329

Upgrades - 7 AirPort Card Place a soft towel or cloth on the desk or surface. 1. Position the screen face down on the cloth.Use a coin or flatblad

Page 330

Upgrades - 8 3. Touch the metal EMI shield inside the recessed latch area before touching any components on the main logic board.

Page 331

Upgrades - 9 4. Detach the antenna from the left guide rail.5. Remove the protective antenna cap from the end of the antenna and store the cap in a

Page 332

Upgrades - 10 6. Slide the AirPort Card into the adapter card. Note: It is probably easiest to attach the metal ground clip over the AirPort Car

Page 333

Upgrades - 11 7. Connect the antenna by plugging the antenna wire into the small hole in the end of the AirPort Card.

Page 334

Basics Overview - 1 Overview Product Description A completely new iMac, redesigned from top to bottom, inside and out—and available in three new m

Page 335

Troubleshooting Power Button - 12 Power Button The power button on the front of the iMac (see Table 1 below) will power up the computer, or put it

Page 336

Upgrades - 12 8. Align the edges of the AirPort Card with the guides on the AirPort Card slot. Insert the AirPort Card into the adapter Card connec

Page 337

Upgrades - 13 movie and setup instructions) for the customer. If these keys are not held down when restarting the computer after an upgrade, the S

Page 338

Upgrades - 14 Connect an External Monitor If the iMac has a VGA output port, you can connect an external monitor to the computer and mirror, or sho

Page 339

Upgrades - 15 10. Place the computer face down, on a soft, clean cloth or ESD mat.

Page 340

Upgrades - 16 f the VGA port is covered (you can’t see it), replace the vented cover with the VGA vented cover that came with the computer.IVented

Page 341

Upgrades - 17 11.Insert the flatblade screwdriver partially into the slot on the top of the vented cover, then gently push forward on the screwdriv

Page 342

Upgrades - 18 12. Insert the lower edge of the VGA vented cover into the slots, then press the top edge down to snap the cover in place.VGA Vented

Page 343

Upgrades - 19 13.Plug the external monitor cable into the VGA output port on the back of the computer.14. Plug the monitor cable into the monitor p

Page 344

Service Source K Exploded View iMac, iMac DV, iMac DV SpecialEdition

Page 345

Exploded View 1 iMac, iMac DV, iMac Special Edition Exploded View Click part to go to parts database (only in html version). Power/Analog/Video Boa

Page 346

Troubleshooting Logic Board Battery - 13 Logic Board Battery Important: Apple highly recommends removing the battery when handling the logic board

Page 347

Exploded View 2 Colored Service Parts Click part to go to parts database (only in html version).Keyboard922-4077 Graphite922-4078 Blueberry922-407

Page 348

Exploded View 3 Cable Locator Click part to go to parts database (only in html version).Cable, Modem, Phone 1TP, ICE 922-3963Cable, Audio (Head

Page 349

Exploded View 4 Screw MatrixScrews Locator922-4144 (4), CD/HD Carrier to Divider Panel 922-4145 (4), CD/DVD CarrierCD to Drive to Carrier 922-4146

Page 350

Exploded View 5 Identifying 350 MHz Logic Boards There are currently three 350 MHz logic boards in service stock for the slot-loading iMac.Two of t

Page 351

Exploded View 6 Identifying the 400 MHz Logic Boards There is a new version of the 400 MHz logic board for the iMac DV and iMac Special Edition. Th

Page 352

Exploded View 7 Identifying the Power/Analog/Video Boards There is a new revision (backward compatible) of the power/analog/video board (661-2315,

Page 353

Troubleshooting Ejecting a CD or DVD Disc, Part 1 - 14 Ejecting a CD or DVD Disc, Part 1 The CD/DVD eject mechanism is electrical rather than mechan

Page 354

Troubleshooting Ejecting a CD or DVD Disc, Part 2 - 15 Ejecting a CD or DVD Disc, Part 2 There are two internal levers on a slot-loading CD-DVD driv

Page 355

Troubleshooting HFS Plus Formatted Drives - 16 HFS Plus Formatted Drives The hard drive in the iMac is formatted with HFS Plus (also referred to as

Page 356

Troubleshooting Testing the Modem - 17 Testing the Modem The iMac ships with AppleWorks software, which can be used to test the iMac modem connectio

Page 357

Troubleshooting Testing the Modem - 18 A good test to see if the phone line is working is to type “ATDT”, which will open the phone line. If the mod

Page 358

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Symptom/Cure Tables:Startup Problems Before the Finder Appears If you have

Page 359 - Replacement Note: If you’re

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Appears No Power In a “No Power” situation, the system is completely dead. T

Page 360

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Appears Bad power/analog/video board-Verify the fuse at F901 on the power/an

Page 361

Basics Overview - 2 mirrored RGB out, FireWire ports, and digital video technology to name a few

Page 362

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Appears No Video or Unstable Raster Normal startup boot chime, the LED is o

Page 363

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Appears Bad power/analog/video board - Check for trickle power on the logic

Page 364 - Take Apart Side Panels - 108

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Gray Screen In a “Gray Screen Raster” situation, you will get a normal start

Page 365

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Error Beep(s) If you hear from one to five error beeps at startup with no bo

Page 366

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Appears Flashing Question MarkThis problem refers to a flashing question mark

Page 367 - Take Apart Antenna - 111

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Appears System Hangs During BootThis problem refers to a system that begins a

Page 368 - Take Apart Antenna - 112

Troubleshooting Symptom/Cure Tables:Startup Problems Before the Finder Appears External device is bad. Disconnect all external devices (USB and Ether

Page 369

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 29Symptom/Cure Tables: System Problems After StartupIf you experience system pro

Page 370

Power Macintosh 7500 Symptom Charts - 30System HangsRefer to this table if your system intermittently hangs (freezes) during normal oper-ation. Note:

Page 371

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 31Distorted VideoDistorted Video refers to a problem with the screen geometry or

Page 372

Basics New Technologies - 3 New Technologies AirPort Wireless Networking The iMac, iMac DV, and iMac DV Special Edition computers support wireless n

Page 373

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 32Thin White LineA a thin, white horizontal line scrolls from top to bottom, or

Page 374

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 33Tinting VideoTinting Video refers to a predominant color tint or color coverin

Page 375

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 34Garbage VideoGarbage video refers to erroneous text or characters that appear

Page 376

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 35Intermittent Shut Down or SleepAn iMac with a sticking power button can genera

Page 377

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 36Memory Error DialogIf you see a error dialog message pertaining to memory afte

Page 378

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 37Can’t Wake From SleepThe computer cannot be brought out of “sleep” mode by pre

Page 379

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 38 Network Problems Refer to this troubleshooting table if you are unable

Page 380

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 39CD_ROM or DVD-ROM VibrationCD-ROM or DVD-ROM vibration is typically caused by

Page 381

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 40CD-ROM or DVD-ROM Won’t EjectCD-ROM or DVD-ROM disc won’t eject from the slot.

Page 382

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 41Uneven edge of the CD or DVD drive.There are two internal levers on a slot-loa

Page 383 - Take Apart Microphone - 127

Basics New Technologies - 4 In addition, to access another computer network or Internet service provider, users need to connect a wireless access de

Page 384

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 42CD-ROM or DVD-ROM Not Showing on DesktopCD-ROM and DVD-ROM problems are define

Page 385

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 43Hard Drive ProblemsHard drive problems include a hard drive that doesn’t opera

Page 386

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 44Sound Out ProblemsSound out problems refer to a lack of sound coming from the

Page 387

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 45Sound In ProblemsSound in problems involve the internal microphone. Symptoms c

Page 388 - Upgrades

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 46Noise From Computer After Shutdown After the computer is shutdown, the compute

Page 389

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 47USB ProblemsUSB problems refer to symptoms or issues that may occur with exter

Page 390

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 48USB driver missing. This error message indicates the device's driver is m

Page 391

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 49Cursor ProblemsThis section deals with a cursor that moves on the screen, but

Page 392

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 50USB Printer ProblemsThis troubleshooting table deals with an iMac that cannot

Page 393

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 51Networked Printer ProblemsThis troubleshooting table deals with an iMac that c

Page 394

Basics New Technologies - 5 VGA Output Port The iMac DV and iMac DV Special Edition computer includes a port for an external video monitor, so you c

Page 395 - AirPort Card

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 52 Modem Not Recognized

Page 396

Troubleshooting Symptom/Cure Tables: System Problems After Startup - 53 Modem Dialing ProblemsIf the modem is having problems dialing out, refer to t

Page 397 - Guide Rails

Service Source K Take Apart iMac, iMac DV, iMac DV SpecialEdition

Page 398

Take Apart - 1 Tools The following tools are recommended for procedures in this chapter: • phillips screwdriver (#1 and #2)• a stubby (short) phill

Page 399

Take Apart Bottom Housing With Flip Foot - 2 Procedures Bottom Housing With Flip Foot Before you begin, position the computer face down, resting the

Page 400

Take Apart Bottom Housing With Flip Foot - 3 1. Remove the two screws near the flip foot.2. Using a plastic flatblade screwdriver, pry the VGA vente

Page 401

Take Apart Bottom Housing With Flip Foot - 4 4. Remove the two outer screws located near the video out port. Note: The bottom housing uses two si

Page 402 - External Monitor

Take Apart Bottom Housing With Flip Foot - 5 5. Lift the bottom housing from the computer.

Page 403

Take Apart Bottom Housing With Flip Foot - 6 6. Replacement Caution: Align the three tabs on the bottom housing with the tab slots on the front ou

Page 404 - Vented Cover VGA Vented Cover

Take Apart EMI Cover - 7 EMI Cover Before you begin:• Position the computer upside down, resting the computer on an ESD mat or other soft surface.•

Page 405 - Vented Cover

Basics Features - 6 Features Processor There are three shipping configurations: iMac (good), iMac DV (better), and iMac DV Special Edition (best).•

Page 406 - VGA Vented Cover

Take Apart EMI Cover - 8 1. Remove the six screws on the EMI cover.

Page 407

Take Apart EMI Cover - 9 2. Lift the EMI cover off the computer. Note: Be careful of the VGA output port (if present).

Page 408 - Exploded View

Take Apart EMI Cover - 10 Replacement Note: Position the rear of the EMI cover into place first, positioning the EMI cover over the video port (if

Page 409 - Exploded View 1

Take Apart SDRAM DIMM - 11 SDRAM DIMM Before you begin, position the computer face down, resting the CRT on an ESD mat or other soft surface.

Page 410 - Colored Service Parts

Take Apart SDRAM DIMM - 12 1. With a flatbade screwdriver or coin, turn the colored latch counterclockwise on the access door.2. Open the access doo

Page 411 - Cable Locator

Take Apart SDRAM DIMM - 13 3. Push down on the plastic tabs to release the SDRAM module(s).4. Carefully lift the SDRAM from the slot. Note: Remove

Page 412 - Screw Matrix

Take Apart AirPort Card - 14 AirPort Card Before you begin, position the computer face down, resting the CRT on an ESD mat or other soft surface. N

Page 413

Take Apart AirPort Card - 15 1. With a flatbade screwdriver or coin, turn the colored latch to open the access door. The antenna and AirPort Card wi

Page 414

Take Apart AirPort Card - 16 2. Remove the AirPort Card (which sits in the adapter card) from the card guides and AirPort connector.

Page 415

Take Apart AirPort Card - 17 3. Disconnect the antenna from the small hole AirPort Card.

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