Apple iMac G5, 20-inch User Manual Page 142
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- TROUBLESHOOTING
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140 - iMac G5 (20-inch) Take Apart
Midplane Assembly
20. Connect the black power supply connector and tighten the two captive screws
(circled), turning them clockwise
21. Replace the remaining screw on the right.
- Service Source 1
- Take Apart 2
- Important Things to Know 4
- Removing the Back Cover 5
- Procedure 6
- Replacing the Back Cover 8
- Replacing the Back Cover 9
- Serial ATA Hard Drive 11
- Serial ATA Hard Drive 13
- Optical Drive 17
- Removing the Optical Drive 18
- Replacing the Optical Drive 21
- Microfoam Shim 25
- Inverter 29
- Removing the Inverter 30
- Inverter 33
- Replacing the Inverter 37
- Fans, Upper 44
- Removing the Fans 45
- Replacing the Fans 49
- Memory (DIMMs) 52
- Removing the Memory 54
- Replacing the Memory 55
- Logic Board 56
- Removing the Logic Board 58
- Logic Board 62
- Bluetooth board aside 62
- Replacing the Logic Board 65
- 21. Replace the memory 74
- 23. Replace the back cover 74
- Power Supply 75
- Removing the Power Supply 76
- Power Supply 78
- Replacing the Power Supply 81
- AirPort Extreme Card 84
- AirPort Extreme Card 86
- AirPort Extreme Card Holder 90
- AirPort Extreme Card Holder 91
- Preliminary Steps 93
- Removing the Battery 94
- Battery 95
- Replacing the Battery 98
- Hard Drive Duct 100
- Removing the Hard Drive Duct 101
- Replacing the Hard Drive Duct 102
- Bluetooth Board 103
- Removing the Bluetooth Board 104
- Replacing the Bluetooth Board 105
- Air Deflector 106
- Removing the Air Deflector 107
- Replacing the Air Deflector 108
- Air Deflector 109
- 4. Replace the back cover 109
- Modem Board 110
- Removing the Modem Board 111
- Replacing the Modem Board 112
- Midplane Assembly 114
- Midplane Assembly 116
- Replacing the Midplane 133
- (circled below) 146
- Midplane Assembly-Short Cut 147
- Midplane Assembly-Short Cut 149
- Bluetooth Antenna Cable 174
- Bluetooth Antenna Cable 175
- LCD Panel 179
- Removing the LCD Panel 180
- LCD Panel 181
- Replacing the LCD Panel 182
- Front Bezel 184
- Removing the Front Bezel 185
- Replacing the Front Bezel 186
- Front Bezel 189
- 12. Replace the back cover 189
- Light Pipe with Gasket 190
- Light Pipe with Gasket 191
- 4. Replace the midplane 193
- 5. Replace the back cover 193
- Microphone Cable 194
- Removing the Microphone Cable 195
- Microphone Cable 196
- Speaker Set 200
- Removing the Speaker Set 201
- Speaker Set 203
- Replacing the Speaker Set 208
- Lower Fan 209
- Removing the Lower Fan 210
- Lower Fan 212
- Replacing the Lower Fan 213
- AirPort Extreme Antenna Cable 214
- Midplane Chassis 219
- Part Location 220
- Removing the Midplane Chassis 221
- Midplane Chassis 222
- Troubleshooting 224
- General Information 225
- Eligible Products 226
- Repair Strategy 227
- Replacement Parts 228
- Special CompTIA Codes 228
- Latin America 229
- Amendment: iMac G5 Repair 230
- Extension Program for Power 230
- Supply Issues 230
- Apple Retail 233
- European IMCs: 234
- Latin America: 234
- Troubleshooting Video Issues 235
- Troubleshooting Power Issues 239
- Serial Number Location 244
- Diagnostic LEDs 245
- Internal Power Button 249
- SMU Button 251
- DDR Memory 253
- Symptom Charts 254
- Power Issues 255
- No Video 259
- Scrambled or distorted video 262
- Symptom Charts 263
- Yes: Problem solved 263
- No: Replace the logic board 263
- Hard Drive 265
- Inserting Discs Issue 269
- Fan Sound 270
- Speakers 276
- My mouse doesn’t work at all 277
- Keyboard 278
- Certain keys don't work 279
- Error Beep(s) 281
- Screw Matrix for 20-inch 284
- Screw Locators 285
- To Access the Inverter 286
- To Access the Hard Drive 287
- Screw Locators 288
- Repair Extension Program 294
- Repair Extension Program for 295
- Video and Power Issues 295
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