iMac (Early 2006 20-inch) 06.pdf

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iMac (Early 2006 20-inch)

iMac (Early 2006 20-inch)

Contents

What’s New 4

iMac (Early 2006) 4

Take Apart

General Information 6

Product View 6

Identifying the iMac (Early 2006 20-inch) Computer 6

What’s New 7

Tools Required 9

Orientation 10

Serial Number Location 10

Safety 11

Opening the Computer 12

EMI Shielding 12

Access Door 13

Memory 15

Front Bezel 18

Camera Board 26

Lower EMI Shield 32

IR Board 35

LCD Display Panel 40

Speakers 48

AirPort Extreme Card 54

Bluetooth Card 57

Optical Drive 60

Hard Drive 67

Power Supply, AC/DC 74

Logic Board 80

AC Line Filter 91

Fan, Hard Drive 95

Fan, Optical Drive 99

Fan, CPU 102

Power Supply, DC/DC, Inverter 105

Ambient Light Sensor Board 108

Cable, Camera and IR 111

Bluetooth Antenna 114

AirPort Antenna 118

Clutch Mechanism 122

Chassis 126

Rear Housing 129

Stand 132

Troubleshooting

General Information 137

Serial Number Location 137

Power On Self Test (POST) 137

DDR Memory 138

Symptom Charts 139

How to Use the Symptom Charts 139

Power Issues 140

No Video 142

Display 144

Hard Drive 145

Optical Drive 147

Fan Sound 152

AirPort/ 155

IR Remote 156

IR Sensor/Receiver 157

Built-in iSight Camera 158

Speakers 160

Mouse 161

iii

What’s New

iMac (Early 2006)

Refer to the new procedures in the Take Apart and Troubleshooting chapters.

Logic board

Intel Core Processor 1.83 and 2.0 GHz

No troubleshooting LEDs

Battery is located on the top side of the logic board

AirPort Extreme and Bluetooth

Separate antennas

Separate parts: AirPort Extreme and Bluetooth boards

Memory

SO-DIMM DDR2 667 MHz, memory slot

Memory ejector levers are visibly diferent from the iMac G5 (iSight) models and should be

used as shown in the Take Apart section.

Ports

Mini-DVI video out port (for mirroring or extending the desktop)

Displays

LVDS (Low Voltage Diferential Signaling ) displays

Power Management

SMC replaces SMU (See SMC Overview and SMC Reset Procedure)

Diagnostics

Apple Hardware Test and Apple Service Diagnostic have new interfaces and procedures (See

Diagnostics)

Troubleshooting

New procedures for troubleshooting no power (See Symptom Charts)

New procedures for troubleshooting no video (See Symptom Charts)

Updated procedures for Target Disk Mode (See Using Target Disk Mode)

Updated procedures for formatting hard drives (See Drive Formatting for Intel-based Macs.)

iMac (Early 2006) — What’s New

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Take Apart

iMac (Early 2006 20-inch)

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