Apple iMac G5 Memory, 17-inch Specifications Page 71
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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iMac G5 (17-inch iSight) Take Apart — Power Supply
About the Power Supply
Warning: When the iMac G5 (iSight) 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 maintenenace.
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 G5 (iSight) 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.
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- Service Source 1
- Contents 2
- Take Apart 2
- Screw Chart 160 4
- What’s New? 7
- Orientation 7
- Serial Number Location 7
- Opening the Computer 10
- Access Tool Modication 10
- EMI Shielding 13
- Lower EMI Shield 14
- Access Door and Memory 16
- Front Bezel 19
- Replace the Front Bezel 24
- Camera Board 26
- Replace the Camera Board 27
- Remove the Lower EMI Shield 29
- Replace the Lower EMI Shield 29
- IR Board 30
- Remove the IR Board 31
- Replace the IR Board 31
- Remove the LCD Display 33
- Replace the LCD Display 37
- TMDS Cable 39
- Remove the TMDS Cable 40
- Replace the TMDS Cable 41
- Inverter 42
- Remove the Inverter 43
- Replace the Inverter 45
- Remove the Speakers 47
- Replace the Speakers 48
- Remove the CPU Fan 50
- Replace the CPU Fan 50
- Remove the Optical Drive 52
- Replace the Optical Drive 60
- Remove the Hard Drive 62
- Replace the Hard Drive 66
- DC-DC Board 67
- Remove the DC-DC Board 68
- Replace the DC-DC Board 69
- Power Supply 70
- About the Power Supply 71
- Remove the Power Supply 72
- Replace the Power Supply 73
- Logic Board 74
- Remove the Logic Board 75
- Replace the Logic Board 80
- Optical Drive Fan 82
- Remove the Optical Drive Fan 83
- Replace the Optical Drive Fan 83
- Hard Drive Fan 84
- Remove the Hard Drive Fan 85
- Replace the Hard Drive Fan 85
- AC Power Inlet 86
- Remove the AC Power Inlet 87
- Replace the AC Power Inlet 89
- Ambient Light Sensor Board 90
- Remove the Clutch 96
- Replace the Clutch 98
- Wireless Antenna 99
- Part Location 100
- Remove the Wireless Antenna 100
- Replace the Wireless Antenna 102
- DC Power Cable 103
- Remove the DC Power Cable 104
- Replace the DC Power Cable 105
- Camera Cable 106
- Remove the Camera Cable 107
- Replace the Camera Cable 108
- Preliminary Steps 110
- Remove the Chassis 111
- Replace the Chassis 112
- Rear Housing 114
- Troubleshooting 115
- General Information 116
- Accessing the Diagnostic LEDs 117
- Testing Under Power 123
- SMU (System Management Unit) 125
- DDR Memory 126
- Symptom Charts 127
- Power Issues 128
- Verbose Startup Mode 131
- No Video 132
- LCD Display 135
- Hard Drive 136
- Optical Drive 137
- Discs won’t insert 140
- Fan Sound 142
- AirPort/Bluetooth 145
- IR Remote 147
- IR Sensor/Receiver 148
- Built-in iSight Camera 149
- Audio Quality Poor 150
- Speakers 151
- No: Replace the speakers 152
- My mouse doesn’t work at all 153
- Keyboard 154
- Error Beep(s) 155
- A USB device doesn’t work 156
- Screw Chart 160
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