Apple imac 20 inch early 2008 User Manual
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© 2008 Apple Inc. All rights reserved. Service Source iMac (20-inch Early 2008) 20 June 2008
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ii Apple Inc. © 2008 Apple Inc. All rights reserved. Under the copyright laws, this document may not be copied, in whole or in part, without the written consent of Apple. Every effort has been made to ensure that the information in this document is accurate. Apple is not responsible for printing or clerical errors. Apple 1 Infinite Loop Cupertino, CA 95014-2084 USA + 1 408 996 1010 www.apple.com Apple, the Apple logo, Mac, and Macintosh are trademarks of Apple Inc., registered in the U.S. and...
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iii iMac (20-inch Early 2008) Contents Manual Updates 7 Updated 20 June 2008 7 Product Introduction April 29, 2008 7 Take Apart General Information 10 Product Features 10 Product Configurations 11 Opening the Computer 11 Note About Images in This Manual 11 Serial Number Location 12 General Tools 12 Required Special Tools 12 Cleaning Tools Starter Kit 13 Removing the Glass Panel 13 View Under the LCD Panel 14 View of the Main Modules 14 View of Inside the Rear Housing 15 Back View 15 I/O...
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iMac (20-inch Early 2008) Take Apart iv Cleaning Tool Resources 43 LENSPEN Screen Cleaning Device 44 Front Bezel 46 Camera Board 52 Battery 56 IR (Infrared) Board 59 AirPort Extreme Card 62 Bluetooth Board 65 LCD Display Panel 68 LCD Temp Sensor Cable 76 LVDS Cable 82 Inverter 87 Speaker, Right 93 Speaker, Left 96 Ambient Temperature Sensor Cable 101 Ambient Temperature Sensor 104 Optical Drive Fan 108 CPU Fan 113 Power Supply, AC/DC 116 Hard Drive 124 Hard Drive Sensor Cable 130 Optical Drive...
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v Camera Cable 165 Microphone Cable 172 Hard Drive Data Cable 179 Mechanism Cover 182 Clutch Mechanism 185 Cable, DC, Power Supply/SATA/Inverter 189 Rear Cover 206 Stand 209 Chassis 213 Troubleshootin g General Information 224 Serial Number 224 Power On Self Test (POST ) 225 Firmware Updates 225 DDR Memory 225 How to Reset the System Management Controller (SMC) 226 Diagnostic LEDs 227 Apple Hardware Test (AHT ) Error Codes 228 Logic Board Sensor and Fan Connector Locations, Top Side 230 Logic...
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iMac (20-inch Early 2008) Take Apart vi Built-in iSight Camera 262 Speakers 264 Mouse (also see Wireless Issues topic) 265 Keyboard (also see Wireless Issues topic) 266 Wireless Issues (also see Additional Wireless Topics) 268 Additional Wireless Topics 272 Error Beep(s) 274 USB 275 Views iMac (20-inch Early 2008)—Upper Exploded View 278 iMac (20-inch Early 2008)—Lower Exploded View 279 Screw Chart 280
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iMac (20-inch Early 2008) — Manual Updates 7 Manual Updates Updated 20 June 2008 Troubleshooting Symptom Charts:• Added new troubleshooting symptom: Optical Drive--> • Optical drive won’t eject media. Verify that two or three black clips (on the bezel) are positioned on top of the optical drive mechanism. Refer to the topic for images and more information. Added a new troubleshooting symptom: Error Beeps--> • iMac display is black and the system beeps nine times (3 short, 3 long, 3 short), then...
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iMac (20-inch Early 2008) — Manual Updates 8 Symptom Charts:• Added new troubleshooting sections called • Wireless Issues and Additional Wireless Topics to help troubleshoot wireless keyboards and mice Added a new symptom: Power Issues--> • System that intermittently shuts down or restarts unexpectedly Updated symptoms throughout for clarity, removed irrelevant links • Exploded View New part numbers were added to reference this iMac model•
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© 2008 Apple Inc. All rights reserved. Service Source Take Apart iMac (20-inch Early 2008)
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iMac (20-inch Early 2008) Take Apart — General Information 10 General Information Product View Product Features The iMac (20-inch Early 2008) computer has the same overall look as the previous iMac. The big differences are the upgraded processor (Intel Penryn chip) and the faster RAM speeds. New features: 2.4 or 2.66 GHz Intel Core 2 Duo processors • 1066 MHz front side bus• 2 GB and 4 GB memory options, PC2-6400 (800 MHz) DDR2, 4 GB max• Mac OS X version 10.5.2 Leopard•