HP Model 743 PC Manual do Utilizador descarregar pdf (Página 84)

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4-10

Connecting Cables

Audio Connection

Table 4-2 lists the audio speciﬁcations, Figure 4-4 shows the audio connec-

tor, and Table 4-3 shows the audio connector pinouts.

Table 4-2 Audio Speciﬁcations

Function Range

Headphone maximum

output level

2.75 V pp at 50 ohms

Input sensitivity Line in, 2.0 V pp at 47 K ohms microphone, 22

mV at 1 K ohm

Programmable input gain 0 to 22.5 dB in 1.5 dB steps

Programmable output

attenuation

0 to 96 dB in 1.5 dB steps

Programmable rates 8, 11.025, 16, 22.05, 32, 44.1, 48 KHz

Signal to noise ratio Headphone, 61 dB

Line in, 61 dB

Microphone, 57 dB

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 141 142

Model 743 Owner’s Guide 1
 Hewlett-Packard Co. 1997 2
Contents 10
Preface-1 11
Audience 12
Australia EMC Standards 13
VCCI Class A ITE 13
Release Document(s) 14
Related Manuals 14
Revision History 16
Documentation Conventions 17
Declaration of Conformity 19
Preface-10 20
1-1 21
Product Description 23
1-5 25
Installation Overview 26
Supported Products 27
Accessory Cards 28
Typical External Devices 29
Keyboard and Mouse 30
Environmental Requirements 31
Operating System Overview 33
1-15 35
Installing HP-UX and HP-RT 37
Accessories Installation 39
Preliminary Procedures 41
Safety Precautions 42
Preliminary Requirements 43
RAM Card Installation 43
GSC Expansion Kit 45
2-9 47
GSC Mezzanine Cards 48
2-13 51
2-15 53
2-17 55
2-19 57
Board Computer 58
2-21 59
2-25 63
Typical Installation in a 65
VME Card Cage 65
Configuring the VME Card Cage 67
Conﬁguring the VME Card Cage 68
Board Computer Installation 70
Non-HP Installation 72
3-9 73
Model 743 Removal 74
Connecting Cables 75
Introduction 77
Text-Only Terminal 78
Connecting the Monitor 79
Power Cord 81
Connecting a Terminal 81
Audio Connection 83
Table 4-2 Audio Speciﬁcations 84
Figure 4-4 Audio Connector 85
Video Connection 86
Network Connection 88
Printer Connections 90
Installation Procedure 91
HP Parallel 93
SCSI Connection 96
Powering On and Off 100
Turning On the System 101
Turning Off the System 103
Using the Command Line 104
Solving Problems 105
Interpreting the LEDs 107
Table 6-1 LED Indicators 108
Managing a Boot Failure 109
Printer Problems 110
The Boot Console Interface 111
The Boot Console Handler 113
Table A-1 Main Menu Options 116
Specifying a Boot Device 117
Setting the Display Format 119
Setting the Console Path 120
Resetting the System 125
Searching for Bootable Media 126
Displaying and Setting Paths 127
Selecting the Alternate Path 129
3 Enter 134
System Configuration Menu 139

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