HP Apollo 9000 400t Manual de Serviço Página 135
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Fault Isolation 4-65
Continue on with Step 3, Step 4, or Step 5, depending on the configuration of the dc
output voltages.
3. If the dc output voltages are not present at J004, perform the following steps:
A. Check the ac outlet for power with a voltmeter. If the ac outlet power is
incorrect, an electrician must correct it.
B. With the power-on switch open, use a voltmeter to check Pin 8 on the J004
connector for +16 to + 20 V dc. If the voltage is not correct, replace the
power supply.
If the voltage is correct at Pin 8, close the power-on switch. If you read Pin
8 at ground, replace the power supply. If you still detect +16 to + 20 V dc,
replace the power-on switch panel. If the new switch doesn’t fix the prob
-
lem, replace these FRUs in the following order:
Ribbon Cable (connects LED board to CPU board)
LED Board
CPU Board
You can check these FRUs before you replace them by checking the pow-
er-on switch circuits for continuity as shown in Table 4-18. Check for con-
tinuity with Connectors J004 and J002 unplugged. Refer to Figure 4-18 for
the locations of the connectors and pins listed in Table 4-18.
Table 4-18. Switch Circuit FRU Pin Numbers
To Check This FRU Check for Continuity Between
These Two Connectors
FRU
CPU Board
Cable from LED Board to CPU Board
LED Board
CPU Board
Cable from LED Board to CPU Board
LED Board
Connector Pin to Connector Pin
J004 8 J001 15
J001 15 J001 15
J001 15 J002 4
J004 20
J001 1
J001 1
J001 1
J001 1
J002 3
- Series 400 Workstations 1
- Emissions Regulations 3
- VCCI Class 1 ITE Equipment 4
- VCCI Class 2 ITE Equipment 4
- Preface 7
- Audience 8
- Domain/OS Related Manuals 8
- HP-UX Related Manuals 9
- Documentation Conventions 10
- Contents 11
- Contents xiii 13
- Domain/OS Systems 15
- Contents xvii 17
- Contents xix 19
- Procedures 21
- Chapter 1 23
- 1.1 Introduction 24
- 1-4 Product Overview 26
- 1.2 Physical Configuration 27
- 1-8 Product Overview 30
- 1.5 Introduction 31
- 1.6 Physical Configuration 33
- 1-16 Product Overview 38
- Chapter 2 41
- 2-2 System Controls 42
- System Controls 2-3 43
- 2.2 Monitor Controls 46
- System Controls 2-7 47
- 2-8 System Controls 48
- 2.3 LED Indicator Lights 49
- Chapter 3 51
- 3-4 Theory of Operation 54
- Theory of Operation 3-5 55
- 3-6 Theory of Operation 56
- Theory of Operation 3-7 57
- 3-8 Theory of Operation 58
- 3.2 FRU-Level Operation 59
- Uncorrectable Memory Error 65
- 3-20 Theory of Operation 70
- Chapter 4 71
- Compatible Mode 73
- 4-4 Fault Isolation 74
- Figure 4-1. Main Flowchart 74
- Fault Isolation 4-5 75
- 4-6 Fault Isolation 76
- Fault Isolation 4-7 77
- 4-8 Fault Isolation 78
- Fault Isolation 4-9 79
- 4-10 Fault Isolation 80
- Fault Isolation 4-11 81
- 4-12 Fault Isolation 82
- Fault Isolation 4-13 83
- 4-16 Fault Isolation 86
- 4.3 Mnemonic Debugger Level 87
- 4-22 Fault Isolation 92
- 4.4 The sysboot Program 95
- 4.5 Online Level 96
- Fault Isolation 4-29 99
- 4-30 Fault Isolation 100
- Fault Isolation 4-31 101
- 4.9 Boot ROM Self-Tests 108
- Fault Isolation 4-43 113
- Fault Isolation 4-45 115
- Fault Isolation 4-47 117
- Fault Isolation 4-49 119
- 4.10 Test Mode 122
- CONTINUE AT OWN RISK 123
- RETURN To Continue 123
- Memory Failed at (address) 124
- (W:BBCCDDEE, R:BBCCDDEF) 124
- PARITY BIT ERROR AT (address) 124
- 4-56 Fault Isolation 126
- Fault Isolation 4-57 127
- Part 3 Checkout Procedures 130
- Fault Isolation 4-61 131
- 4-62 Fault Isolation 132
- Fault Isolation 4-67 137
- J001 14 137
- Domain Compatible Mode 139
- Compatible Mode 147
- Chapter 5 149
- 5.3 System Assemblies 150
- 5.5 System Unit Assemblies 172
- (Continued) 227
- Appendix A 235
- A-2 FRU Confi gurations 236
- A-6 FRU Confi gurations 240
- FRU Confi gurations A-7 241
- FRU Confi gurations A-11 245
- Hard Disk Drive 245
- A-12 FRU Confi gurations 246
- Tape Drive 246
- FRU Confi gurations A-13 247
- A-14 FRU Confi gurations 248
- Appendix B 249
- Appendix C 253
- C-2 Confi guring the EEPROM 254
- C.4 I/O Configuration Mode 264
- Configure Mode Failed 265
- Configuration EEPROM Failed 265
- 1 Select Code 9 268
- used select codes are : 268
- 12 14 15 21 268
- C.5 Auto System Select Mode 277
- Appendix D 283
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