iMac (20-inch Mid 2007).pdf

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iMac (20-inch Mid 2007)
Updated: May 2, 2008
© 2007 Apple Inc. All rights reserved.
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 Apple Inc.
© 2007 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 efort has been made to ensure that the information in this document is accurate. Apple is
not responsible for printing or clerical errors.
Apple
1 Ininite 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
other countries.
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iMac (20-inch Mid 2007)
Contents
Take Apart
General Information 8
Product View 8
Opening the Computer 8
Note About Images in This Manual 8
Serial Number Location 9
General Tools 9
Required Special Tools 10
Removing the Glass Panel 11
View Under the LCD Panel 12
View of the Main Modules 12
View of Inside the Rear Housing 13
Back View 13
I/O Ports 14
Cleaning and Handling the Glass Panel 15
Do’s and Don’ts 16
Handling a Broken Glass Panel 16
Safety 17
EMI Shielding 18
Manual Updates 19
2 May 2008 19
20 March 2008 19
19 December 2007 19
10 December 2007 20
6 November 2007 20
Access Door 21
Memory 23
Glass Panel 27
Cleaning and Handling of the Glass Panel 28
Removing the Glass Panel 31
Replacing the Glass Panel 34
Installing a Replacement Glass Panel 39
iii
Front Bezel 44
Camera Board 50
Battery 54
IR (Infrared) Board 57
Ambient Temperature Sensor Cable 60
Ambient Temperature Sensor 63
AirPort Extreme Card 66
Bluetooth Card 69
LCD Display Panel 72
LCD Temp Sensor Cable 80
LVDS Cable 86
Inverter 91
Speaker, Right 97
Speaker, Left 100
Optical Drive Fan 105
CPU Fan 109
Power Supply, AC/DC 112
Hard Drive 120
Hard Drive Sensor Cable 126
Optical Drive 129
Optical Drive Flex Cable 134
Optical Sensor Cable 137
Logic Board 140
Video Card 149
Hard Drive Fan 154
Audio Board 157
Camera Cable 160
iv
Microphone Cable 167
Hard Drive Data Cable 174
Mechanism Cover 177
Clutch Mechanism 180
DC, Power Supply/SATA/Inverter Cable 184
Rear Cover 192
Stand 195
Chassis 199
Troubleshooting
General Information 207
Serial Number 207
Power On Self Test (POST) 208
DDR Memory 208
Diagnostic LEDs 210
Apple Hardware Test (AHT) Error Codes 212
Logic Board Sensor and Fan Connector Locations, Top Side 214
Logic Board Sensor Locations, Back Side 215
Cleaning Tools for the LCD and Glass 215
LensPen Cleaning Tool 216
Ionizing Air Gun 217
Symptom Charts 218
How to Use the Symptom Charts 218
Apple Hardware Test (AHT) Error Codes 219
Power Issues 221
Video 225
System Shuts Down 227
Display 228
Hard Drive 229
Optical Drive 232
Fan Sound 237
AirPort 242
Bluetooth (also see Wireless Issues topic) 243
IR Remote 244
IR Sensor/Receiver 245
Built-in iSight Camera 246
Speakers 248
Mouse (also see Wireless Issues topic) 249
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