Apple imac 20 inch late 2006 User Manual
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Service Source © 2006 Apple Inc. All rights reserved. iMac (20-inch Late 2006) 13 December 2007
ii iMac (20-inch Late 2006) Contents Take Apart General Information 6 Product View 6 Serial Number Location 7 Tools Required 9 Safety 10 Access Tool Modification 11 What’s New 17 Access Door 19 Front Bezel 21 Camera Board 29 Lower EMI Shield 35 IR Board 38 Battery 43 LCD Display Panel 45 Memory 52 Speakers 56 AirPort Extreme Card 60 Bluetooth Card 65 Optical Drive 68 Hard Drive 76 Power Supply 83 Logic Board 89 AC Power Inlet 99
iii Fan, Hard Drive 103 Fan, Optical Drive 107 Fan, CPU 110 Inverter 113 Ambient Light Sensor Board 117 Cable, Camera and IR 120 Bluetooth Antenna 123 AirPort Antennas 127 Clutch Mechanism 131 Chassis 135 Rear Housing 139 Stand 142 Cable, AC/DC SATA, Inverter Power 146 Troubleshooting General Information 151 Symptom Charts 156 How to Use the Symptom Charts 156 Power Issues 157 No Video 158 Video Distortion After Waking From Sleep 160 Display 163 Optical Drive 167 Fan Sound 172 AirPort 176 Bluetooth 177 IR Remote 178 IR Sensor/Receiver 179 Built-in iSight Camera 180 Speakers 182 Mouse 183 Keyboard 184 Error Beep(s) 185 USB 186
iv Views iMac (20-inch Late 2006)—Upper Exploded View 188 iMac (20-inch Late 2006)—Lower Exploded View 189 Screw Chart 190 Screw Chart : iMac (20-inch Late 2006): page 1 190
Service Source © 2006 Apple Computer, Inc. All rights reserved. Take Apart iMac (20-inch Late 2006)
iMac (20-inch Late 2006) Take Apart — General Information 6 General Information Product View
iMac (20-inch Late 2006) Take Apart — General Information 7 Serial Number Location On the bottom of your iMac stand, you’ll find a label with the serial number printed on it: Serial Number Location
iMac (20-inch Late 2006) Take Apart — General Information 8 What’s New on the iMac (20-inch Late 2006)? Logic board Intel Core 2 Duo Processor running at 2.16 or 2.33 GHz • AirPort Extreme and Bluetooth antennas Separate antennas: Two AirPort antennas, one Bluetooth antenna • Inverter Board New service part, 661-4112. It serves as the flat panel backlight controller. • Camera Board New service module, 661-4113, is smaller than previous camera boards. • Memory Supports up to 3 GB system memory • Supports two standard PC2-5300 DDR2 SO-DIMM modules • Rear cover and Front bezel New part numbers (922-7769 and 922-7875) with slight revisions to each part • DC-DC Board There is no DC/DC board. The functionality previously accomplished on the DC/DC board has • been integrated into the logic board
iMac (20-inch Late 2006) Take Apart — General Information 9 Tools Required The following tools are required to service the computer. Note that a special access card (part 922- 7172) is required to open the front bezel.ESD-safe workstation and mat • Soft, clean towel or cloth (to protect the display and removed parts from scratches) • Access card to open the rear cover (part 922-7172) • Black stick (or other nonconductive nylon or plastic flat-blade tool) • Phillips #1 screwdriver • Phillips #2 screwdriver • Torx T8 screwdriver (magnetized) • Torx T6 screwdriver (magnetized) • Torx T10 screwdriver (magnetized) • Flat-blade screwdriver •
iMac (20-inch Late 2006) Take Apart — General Information 10 Safety Warning: When the iMac (20-inch Late 2006) is under power, be aware that the power supply contains high voltages that pose a potential hazard to your personal safety . Never work on or near the power supply with the unit powered on, and as a further precaution always make sure the unit is unplugged when working on it with the front bezel removed. WARNING: HIGH VOLTAGE Text or photographs marked by this symbol indicate that a potential hazard to your personal safety exists from a high voltage source. The AC/DC power supply board is a high voltage source with the unit under power, and remains powered up whenever the system is plugged in, whether or not the system is turned on. Use extreme caution when troubleshooting the system with the front bezel removed. Disconnect power to the system before performing maintenan • ce. Don’t work alone. In the even of an electrical shock it is important to have another • individual present who can provide assistance. Keep one hand in your pocket when working on any • iMac (20-inch Late 2006) that is plugged in. This will help ensure that your body does not provide a path to ground in the event that you accidentally make contact with the line voltage. Don’t wear jewelry, watches, necklaces, or other metallic articles that could present a risk • if they accidentally make contact with the power supply circuitry .