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Basics Resetting the Logic Board - 49
Resetting the Logic Board
Resetting the logic board can resolve many system problems
(refer to “Symptom Charts” for examples). Whenever you
have a unit that fails to power up, you should follow this
procedure before replacing any modules.
1 Unplug the computer.
2 Remove the battery from the logic board.
3 Disconnect the power supply cable from the logic board
and then press the Power On button. (See “Logic Board
Diagram” later in this chapter to locate the Power On
button.)
4 Wait at least 10 minutes before replacing the battery.
5 Make sure the battery is installed in the correct +/-
direction.
- Power Macintosh G3 1
- Hot Issues 2
- Introduction 3
- Shared Logic Board 4
- Processor Module Vs. Card 4
- Power Supply Jumper 5
- Processor Module Jumper 5
- Warranty Sticker 6
- Power Supply Voltage Setting 6
- ROM DIMM 8
- EIDE Bus Issue 9
- Master/Slave Support 10
- Ultra Wide SCSI Cable Routing 10
- DVD-ROM Disk Damage 11
- CD-ROM Ejection Problem 11
- HFS+ Formatted Drives 12
- Power-On Issue 13
- Overview 15
- Data Buses 19
- (Ultra Wide) 21
- Narrow SCSI-1 Bus 23
- Ultra Wide SCSI-3 Bus 23
- EIDE Bus 26
- Support for Master and Slave 27
- Ultra Wide SCSI Card 32
- Cable Length Limits 35
- 10/100 BaseT Ethernet Card 37
- DVD-ROM Drive Technology 39
- Apple DVD-ROM Drive Specs 47
- Transfer Rate 48
- Disk Format Support 48
- DVD Software Drivers 49
- FireWire Technology 53
- The Cuda Chip 62
- Resetting the Logic Board 63
- Sound Output 67
- Sound Input 68
- Video Input and Output 70
- The DAV Connector 72
- Voltage Switch 73
- PowerPC G3 and Backside Cache 76
- SDRAM DIMMs 77
- SGRAM Video Memory 79
- DIMM Slots 80
- Front View 82
- Rear View 83
- Internal Locator 84
- Repair Strategy 86
- USA Ordering 87
- Canadian Ordering 88
- Warranty/AppleCare/ARIS 89
- A little background 90
- The “why” 91
- The PowerPC G3 92
- Processor: Taking 92
- Benefits to the user 93
- Specifications 94
- Take Apart 96
- Top Housing 97
- CD-ROM Bezel 100
- Blank Bezel 100
- Chassis Latch 102
- CD-ROM or 104
- DVD-ROM Drive 104
- Master/Slave Cable 109
- Zip Drive 111
- Floppy Drive 116
- Take Apart Floppy Drive - 22 118
- 2 Flip open the chassis 118
- Drive Rails Floppy Drive 120
- Replacement Note: 121
- Drive Chassis 122
- Open/Remove 124
- Card Retainer 124
- Open Internal 127
- 2 Flip out the chassis 128
- Chassis 130
- Support Arm 130
- Hard Drive 131
- Take Apart Hard Drive - 36 132
- 1 Disconnect the cables 132
- Drive Rails 134
- Power Supply 136
- Speaker Cable 146
- Power Actuator 147
- Processor Module 149
- 3 Lift up the clip and 152
- 4 Lift up the heatsink to 153
- 5 Lift the metal lever at 154
- Take Apart Battery - 64 160
- 1 Use a screwdriver to 160
- Take Apart Battery - 65 161
- 2 Lift up the battery to 161
- PCI Cards 162
- Take Apart PCI Cards - 67 163
- 1 Remove the screw that 163
- Take Apart PCI Cards - 68 164
- 2 Grab the corners of the 164
- PCI card and pull up the 164
- Ultra Wide SCSI PCI Card 165
- 3 Feed the ultra wide SCSI 167
- FireWire PCI Card 171
- Note: The graphic at left 175
- I/O Card 176
- Logic Board 178
- Rear Panel 185
- Bottom Chassis 188
- Note: The bottom chassis is 189
- Modem Card 190
- Replacement Note: Align the 191
- Upgrades 192
- PCI or I/O Cards 193
- Port Access Cover 194
- Port Access Cover Screw 194
- 8 Close the expansion card 197
- Memory—DRAM 198
- 3 Lift up on the tab to open 199
- Hole in Chassis Floor 200
- DRAM DIMM 201
- DRAM Slot 201
- SGRAM DIMM 203
- Video Memory 203
- Slot Arm 203
- Video Memory Slot 203
- Close Chassis 205
- Release Switches 206
- Expansion 206
- Card Cover 206
- Troubleshooting 212
- Voltage Regulator 214
- Jumper Location J16 216
- Jumper Location J28 217
- I/O Cards 218
- Power Supply Verification 223
- Symptom Charts 229
- Error Chords 236
- Peripherals 244
- CD-ROM Drive 247
- Miscellaneous 252
- Exploded View 253
- Exploded View 2 254
- 922-2739 255
- 922-1203 255
- 922-3240 255
- Audio/ Video Card 256
- Tape deck 257
- RCA plugs RCA plugs 257
- RCA-type plug 257
- S-video plug 259
- Connecting a Television 264
- Update: About Your 267
- Build-To-Order Macintosh 267
- 1 through 6 Available 269
- 7 SCSI PCI card (terminated) 269
- 8 through 15 Available 269
- Warning 271
- Graphics Card Specifications 272
- The FireWire Bus 273
- Apple FireWire Hardware 273
- Apple FireWire Card Software 274
- 1 Insert the FireWire CD 274
- 4 Restart your computer 274
Prodotti e manuali riguardandi Tavolini per PC/Workstation Apple Power Macintosh G3
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