Apple 24-inch User Manual download pdf (Page 139)

iMac (24-inch Mid 2007) Take Apart — Logic Board 139

Logic Board

Tools

Torx T8 screwdriver•

Torx T10 screwdriver•

Preliminary Steps

Before you begin, remove the following:

Access door•

Glass panel •

Front bezel•

LCD Panel•

Speaker, right•

Part Location

1 ... 138 139 140 ... 249

 Service Source 1
Contents 3
Take Apart 3
Manual Updates 7
10 December 2007 8
7 November 2007 8
General Information 10
Serial Number Location 11
General Tools 12
Required Special Tools 12
Cleaning Tools Starter Kit 13
Removing the Glass Panel 13
View of the Main Modules 14
Back View 15
I/O Ports 16
Do’s and Don’ts 18
Handling a Broken Glass Panel 18
EMI Shielding 20
Access Door 21
Removing the Access Door 22
Replacing the Access Door 22
Removing the Memory 24
Replacing the Memory 25
Isopropyl Alcohol (IPA) 27
Magnets on the Front Bezel 29
Replacing the Glass Panel 33
Cleaning Tool Resources 41
Ultra Violet Inspection Lamp 42
Front Bezel 43
Removing the Front Bezel 44
Replacing the Front Bezel 47
Camera Board 49
Removing the Camera Board 50
Replacing the Camera Board 51
Removing the Battery 53
Replacing the Battery 54
IR (Infrared) Board 55
Removing the IR Board 56
Replacing the IR Board 57
AirPort Extreme Card 58
Replace the front bezel3. 61
Replace the access door5. 61
Bluetooth Card 62
Removing the Bluetooth Card 63
Replacing the Bluetooth Card 64
LCD Temp Sensor and Cable 65
922-8172 69
Replace the front bezel9. 70
Speaker, Left 71
Removing the Left Speaker 72
Replacing the Left Speaker 74
LCD Display Panel 76
Removing the Display Panel 77
Replacing the Display Panel 80
Ambient Temperature Sensor 83
LVDS Cable 91
Removing the LVDS Cable 92
Replacing the LVDS Cable 93
Inverter Cable 96
Removing the Inverter Cable 97
Replacing the Inverter Cable 98
Replace the access door10. 100
Speaker, Right 101
Removing the Right Speaker 102
Replacing the Right Speaker 103
Optical Drive Fan 104
Preliminary Steps 107
Part Location 107
Removing the CPU Fan 108
Replacing the CPU Fan 109
Power Supply, AC/DC 110
Hard Drive 117
Removing the Hard Drive 118
922-7019 120
Replacing the Hard Drive 121
Hard Drive Sensor Cable 124
Optical Drive 127
Removing the Optical Drive 128
Replacing the Optical Drive 131
Optical Flex Cable 133
Optical Sensor Cable 135
Logic Board 139
Removing the Logic Board 140
Replacing the Logic Board 144
Replace the display panel.9 146
Replace the front bezel10. 147
Replace the access door12. 147
Video Card 148
Removing the Video Card 149
(24-inch) video card 150
Replacing the Video Card 151
Hard Drive Fan 153
Removing the Hard Drive Fan 154
Replacing the Hard Drive Fan 155
Audio Board 156
Removing the Audio Board 157
Replacing the Audio Board 158
Hard Drive Data Cable 159
Clutch Cover 162
Removing the Clutch Cover 163
Replacing the Clutch Cover 164
Removing the Stand 166
Replacing the Stand 168
Removing the Chassis 171
Replacing the Chassis 173
Clutch Mechanism 175
Removing the Clutch Mechanism 176
AC Power Inlet 180
Removing the AC Power Inlet 182
Remove the 3. chassis 183
Replacing the AC Power Inlet 184
Camera Cable 186
Removing the Camera Cable 187
Replacing the Camera Cable 189
Microphone Cable 191
DC Power Cable 197
Replace the chassis screw.3 200
Rear Cover 202
Removing the Rear Cover 203
Replacing the Rear Cover 204
Troubleshooting 205
Power On Self Test (POST) 207
DDR Memory 208
Diagnostic LEDs 209
Symptom Charts 211
Power Issues 212
No Video, No Boot Chime 213
No Video, Boot Chime Heard 214
System Shuts Down 215
Glass Panel 216
Display Panel 217
Hard Drive Issues 219
Discs won’t insert 223
Fan Sound 225
Bluetooth 231
IR Remote 232
IR Sensor/Receiver 233
Built-in iSight Camera 234
Audio quality is poor 235
Speakers 236
Keyboard 238
Error Beep(s) 240
A USB device doesn’t work 241
Screw Chart 246
Screw Chart: Page 2 of 3 247
Screw Chart: Page 3 of 3 248

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Apple 24-inch User Manual Page 139

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