WatchNet RTS series Manual de servicio Pagina 127
- Pagina / 260
- Tabla de contenidos
- SOLUCIÓN DE PROBLEMAS
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
Chapter 8 Major Subassemblies 8-31
FIGURE 8-20 Removing and Replacing the Front Panel DC Switch Assembly
8.8.2 Replacing the DC Switch Assembly
This procedure revises the DC switch assembly replacement procedure found in the
Sun Ultra 60 Service Manual, part number 805-1709.
Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.
Caution – The DC switch assembly replacement procedure is a complex procedure.
It is recommended that a qualified field service representative perform this
procedure.
Caution – When replacing the DC switch assembly, ensure that the DC switch
spade connectors are pointed towards the bottom of the case.
Detent tab (2)
- 60 Service 1
- Contents 3
- Contents iv 4
- Contents v 5
- Contents vi 6
- Contents vii 7
- Contents viii 8
- Contents ix 9
- Glossary G-1 10
- Index ix-1 10
- Figures xi 11
- Figures xii 12
- Figures xiii 13
- Figures xiv 14
- Tables xv 15
- Tables xvi 16
- How This Book Is Organized 17
- UNIX Commands 18
- Shell Prompts 19
- Typographic Conventions 19
- Related Documents 20
- Ordering Sun Documentation 21
- Sun Welcomes Your Comments 22
- Product Description 23
- Ultra 60 Desktop Workstation 24
- System unit 24
- Keyboard 24
- Mouse/pad 24
- Monitor (24-inch optional) 24
- 1.1 I/O Devices 25
- 1.2 System Unit Features 25
- 1.3 System Unit Components 27
- Component Description 28
- SunVTS Overview 31
- 2.2 SunVTS Operation 32
- Power-On Self-Test 33
- 3.1 POST Overview 34
- 3.2 Pre-POST Preparation 34
- 3.2.2 Verifying the Baud Rate 36
- 3.3 Initializing POST 37
- CODE EXAMPLE 3-1 identifies a 39
- TABLE 3-2 51
- 3.5 Bypassing POST 53
- Commands 54
- 3.7 System and Keyboard LEDs 54
- Troubleshooting Procedures 57
- 4.1 Power-On Failure 58
- 4.2 Video Output Failure 59
- TABLE 4-1 60
- 4.4 Power Supply Test 61
- Power Supply Connector J2901 62
- Power Supply Connector J2902 62
- 4.5 DIMM Failure 63
- DIMM Physical Memory Address 64
- 4.6.1 watch-clock 65
- 4.6.5 UPA Graphics Card 68
- 4.7 OpenBoot Diagnostics 69
- CODE EXAMPLE 4-7) 70
- CODE EXAMPLE 4-8) 70
- 4.7.1 PCI/Cheerio 71
- 4.7.2 EBus DMA/TCR Registers 72
- 4.7.3 Ethernet 72
- 4.7.4 Keyboard 73
- 4.7.5 Mouse 74
- 4.7.6 Floppy 74
- 4.7.7 Parallel Port 74
- 4.7.8 Serial Port A 75
- 4.7.9 Serial Port B 77
- 4.7.10 NVRAM 78
- 4.7.11 Audio 78
- 4.7.12 SCSI 79
- 4.7.13 All Above 79
- Safety and Tool Requirements 83
- 5.1 Safety Requirements 84
- 5.2 Symbols 84
- 5.3 Safety Precautions 85
- 5.4 Tools Required 86
- Power On and Off 87
- FIGURE 6-1) or press the Sun 88
- FIGURE 6-2) 88
- Internal Access 91
- 7.2 Attaching the Wrist Strap 93
- Wrist strap 94
- System unit rear 94
- (service position) 95
- Major Subassemblies 97
- 8.1 Power Supply 98
- Peripheral power cable 99
- Captive screw (4) 99
- Power supply 99
- (partially extended) 99
- Power cable 100
- 8.2 PCI Fan Assembly 101
- FIGURE 8-3) 102
- FIGURE 8-4): 104
- SCSI drive bay 105
- Screw (2) 105
- 8.4 Cable Assemblies 107
- 8.5 EMI Filler Panels 110
- 2. Replace the RMA 111
- 8.6 Chassis Foot 112
- 8.7 Speaker Assembly 113
- Speaker assembly 114
- Speaker cable 114
- 8.8 DC Switch Assembly 115
- Lock Block Location 116
- Lock block 116
- System unit front 117
- Side access cover 117
- 4. Attach the wrist strap 118
- PCI card 119
- Bracket tab 119
- UPA graphics card 120
- FIGURE 8-7): 121
- Hard drive handle 122
- Hard drive 122
- Handle latch 122
- FIGURE 8-17): 123
- DC power connector 125
- DC power cable routing 125
- FIGURE 8-20): 126
- FIGURE 8-16): 129
- FIGURE 8-15): 129
- FIGURE 8-13 and FIGURE 8-14) 129
- FIGURE 8-21) 129
- Sun Type-5 Keyboard 131
- Power on key 131
- 8.9 CPU Fan Assembly 132
- Shroud assembly 133
- Metal handle 133
- Snap catch 133
- 8.10 Shroud Assembly 134
- Locking lever 135
- Captive screw 135
- Storage Devices 137
- 9.1 Hard Drive 138
- 9.1.2 Replacing a Hard Drive 139
- 9.2.1 Removing the RMA 140
- Chapter 9 Storage Devices 9-5 141
- FIGURE 9-2): 141
- Tape Drive 142
- Chapter 9 Storage Devices 9-7 143
- 9.2.6 Replacing the RMA 145
- 6. Power on the system unit 146
- Motherboard and Component 147
- Replacement 147
- 10.1 CPU Module 148
- CPU module 149
- Lever (2) 149
- FIGURE 10-1): 150
- 10.2 NVRAM/TOD 151
- NVRAM/TOD 152
- 10.3 PCI Card 153
- 10.3.2 Replacing a PCI Card 155
- 10.4 UPA Graphics Card 156
- 10.5 DIMM 158
- 10.5.1 Removing a DIMM 159
- Removing and Replacing a DIMM 160
- 10.5.2 Replacing a DIMM 161
- 10.6 Audio Card 162
- FIGURE 10-6): 163
- Audio card 164
- 10.7 Motherboard 165
- 10.7.1 Removing a Motherboard 166
- Screw (3) 167
- Serial Port Jumper Settings 169
- FIGURE 10-8) 171
- FIGURE 10-7) 171
- Illustrated Parts List 173
- Numerical 175
- Product Specifications 177
- A.1 Physical Specifications 178
- A.2 Electrical Specifications 178
- Environmental Requirements 179
- Signal Descriptions 181
- B.1 Keyboard/Mouse and Serial 182
- Ports A and B 182
- B.3 UltraSCSI Connector 186
- B.4 Audio Connectors 190
- B.5 Parallel Port Connector 191
- MII Connector Pin Assignments 194
- Pin Signal Name Description 195
- FIGURE B-8 196
- TABLE B-8 lists the 196
- Functional Description 199
- C.1 System Unit 200
- C.1.1 UPA Interconnect 202
- C.1.2 System Controller 203
- C.1.3 PCI Bus 204
- C.1.4 EBus2 Devices 205
- C.1.5 UltraSPARC II Processor 206
- C.1.6 Memory System 207
- FIGURE C-5 DIMM Mapping 210
- C.1.6.1 DIMM 211
- C.1.7 Graphics and Imaging 212
- C.1.8 Peripherals 213
- C.1.8.1 CD-ROM Drive 214
- C.1.8.2 Diskette Drive 214
- Diskette Drive Signals 215
- C.1.8.3 Hard Drives 216
- C.1.10.2 Diskette Port 218
- C.1.10.3 Parallel Port 219
- C.1.11 Serial Port 220
- Serial Port Functions 221
- EIA Levels 221
- C.1.12 Ethernet 222
- C.1.12.3 External Cables 224
- C.1.12.4 Connectors 224
- C.1.12.5 MII Power 224
- C.1.12.6 MII Port Timing 224
- (Cheerio ASIC) 225
- Audio Card Features 226
- C.1.14 SCSI 228
- C.1.14.3 External Cables 229
- FIGURE C-11 230
- C.1.15 ASICs 231
- C.1.15.2 Marvin 232
- C.1.15.3 Cheerio 232
- C.1.15.4 PSYCHO+ 232
- C.1.15.5 FBC 233
- C.1.15.6 RISC 233
- C.2 Power Supply 234
- C.2.1 Control Signals 235
- Turning the System Unit On 236
- Turning the System Unit Off 237
- CPU Modules 237
- PCI Cards 238
- Memory System 239
- Mass Storage Devices 239
- C.2.2 Built-In Speaker 240
- C.3 Motherboard 241
- C.4 Jumper Descriptions 243
- C.4.1 Serial Port Jumpers 244
- C.5 Enclosure 245
- C.6 Environmental Compliance 246
- C.7 Agency Compliance 246
- Glossary 249
- Glossary-3 251
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