Specifications
iii
Logic Board 74
Optical Drive Fan 82
Hard Drive Fan 84
AC Power Inlet 86
Ambient Light Sensor Board 90
Clutch 94
Wireless Antenna 99
DC Power Cable 103
Camera Cable 106
Chassis 110
Rear Housing 114
Troubleshooting
General Information 116
Serial Number Location 116
Accessing the Diagnostic LEDs 117
Testing Under Power 123
SMU (System Management Unit) 125
Resetting the SMU (System Management Unit) 125
Ports 126
DDR Memory 126
Symptom Charts 127
How to Use the Symptom Charts 127
Power Issues 128
Verbose Startup Mode 131
No Video 132
LCD Display 135
Hard Drive 136
Optical Drive 137
Fan Sound 142
AirPort/Bluetooth 145
IR Remote 147
IR Sensor/Receiver 148
Built-in iSight Camera 149
Speakers 151
Mouse 153