Tektronix 1740A/1750A Manuel utilisateur

User Manual

1740A/1750A Series

Waveform/Vector Monitor

070-8470-06

This document supports firmware version 2.2 and

above.

www.tektronix.com

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - FAX 781.665.0780 - TestEquipmentDepot.com

1740A/1750A Series Waveform/Vector Monitor User Manual

General Safety Summary

Review the following safety precautions to avoid injury and

prevent damage to this product or any products connected to

it. To avoid potential hazards, use this product only as

specified.

Only qualified personnel should perform service procedures.

To Avoid Fire or Personal Injury

Use Proper Power Cord

Use only the power cord specified for this product and

certified for the country of use.

Connect and Disconnect Properly

Do not connect or disconnect probes or test leads while they

are connected to a voltage source.

Ground the Product

This product is grounded through the grounding conductor of

the power cord. To avoid electric shock, the grounding

conductor must be connected to earth ground. Before making

connections to the input or output terminals of the product,

ensure that the product is properly grounded.

Observe All Terminal Ratings

To avoid fire or shock hazard, observe all ratings and mark-

ings on the product. Consult the product manual for further

ratings information before making connections to the prod-

uct.

General Safety Summary

1740A/1750A Series Waveform/Vector Monitor User Manual

The common terminal is at ground potential. Do not connect

the common terminal to elevated voltages.

Do Not Operate Without Covers. Do not operate this

product with covers or panels removed.

Use Proper Fuse. Use only the fuse type and rating speci-

fied for this product.

Avoid Exposed Circuitry. Do not touch exposed connec-

tions and components when power is present.

Do Not Operate With Suspected Failures. If you suspect

there is damage to this product, have it inspected by qualified

service personnel.

Do Not Operate in Wet/Damp Conditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Provide Proper Ventilation. Refer to the manual’s installa-

tion instructions for details on installing the product so it has

proper ventilation.

Safety Terms and Symbols

Terms in This Manual. These terms may appear in this

manual:

WARNING. Warning statements identify conditions or practices

that could result in injury or loss of life.

General Safety Summary

iii

1740A/1750A Series Waveform/Vector Monitor User Manual

CAUTION. Caution statements identify conditions or practices

that could result in damage to this product or other property.

Terms on the Product. These terms may appear on the

product:

DANGER indicates an injury hazard immediately accessible

as you read the marking.

WARNING indicates an injury hazard not immediately

accessible as you read the marking.

CAUTION indicates a hazard to property including the

product.

Symbols on the Product. These symbols may appear on

the product:

CAUTION

Refer to

Manual

WARNING

High Volt-

age

Double

Insu-

lated

Protective

Ground (Earth)

Te r m in a l

Not suitable for

connection to

the public tele-

communica-

tions network

1740A/1750A Series Waveform/Vector Monitor User Manual v

TABLE OF CONTENTS

Introduction

Product Description 1-1.............................

Features 1-2.................................

Options 1-5........................................

Power Cord Options 1-5.......................

CRT Options 1-6.............................

Accessories 1-7....................................

Standard Accessories 1-7.....................

Optional Accessories 1-7......................

Field Upgrade Kits 1-8........................

Installation 1-9.....................................

Repackaging for Shipment 1-9..............

Electrical Installation 1-10.......................

Mains Frequency and Voltage Range 1-11.....

Remote Connector 1-11.....................

RS232 Connector 1-11.......................

Mechanical Installation 1-12....................

Cabinets 1-12..............................

Custom Installation 1-12.....................

Rackmounting 1-13.........................

Instrument Configuration 1-15........................

At A Glance 2-1.....................................

Front-Panel Controls 2-1......................

Rear-Panel Connectors 2-8....................

Operator’s Checkout Procedure 2-12..................

Required Equipment 2-12....................

Initial Equipment Connections 2-12............

Procedure 2-13...............................

Operation Basics

Functional Overview 3-1.............................

Table of Contents

1740A/1750A Series Waveform/Vector Monitor User Manual

Display Modes 3-1............................

Vector 3-1.................................

Waveform 3-1.............................

Audio 3-2.................................

SCH 3-2..................................

Picture 3-2................................

Time Code 3-3.............................

Multiple 3-3...............................

Displaying a Signal 3-3........................

Inputs 3-3.................................

Using the Menus 3-5................................

General Menu Information 3-5.................

Multi-Use Bezel Controls and Buttons 3-5.....

Moving Between Menus 3-5.................

Clear Menu 3-6............................

Exiting a Menu Function 3-6.................

Filter Menu 3-7...............................

Cursor Menu 3-8.............................

Waveform Cursor Control 3-9................

Vector + Waveform (Multiple) 3-11............

Using the Cursors 3-11.........................

Line Select Menu 3-14.........................

Preset Menu 3-16.............................

Configure Menu 3-18..........................

INPUT 3-18.................................

VECTOR 3-18..............................

FORMAT 3-19..............................

STANDARD 3-20............................

OFFSET 3-21...............................

CALIBRATE 3-21............................

REMOTE 3-23..............................

REFERENCE (Dual Standard Only) 3-23.......

Gain Menu 3-24...............................

CRT Menu 3-24...............................

Remote Operation 3-25...............................

Using Presets through the Remote 3-25.......

Table of Contents

1740A/1750A Series Waveform/Vector Monitor User Manual vii

Making Measurements

Basic Measurements 4-1............................

Waveform Graticule 4-1.......................

Horizontal Scale 4-1........................

NTSC Vertical Scales 4-2....................

PAL Vertical Scale 4-3......................

Dual-Standard Vertical Scale 4-4.............

Making Waveform Measurements 4-5...........

Horizontal Sync Amplitude 4-5...............

Peak White 4-5............................

K-Factor Measurements 4-5.................

Vector Graticule 4-7...........................

Making Vector Measurements 4-9..............

Chroma Bandwidth 4-9.....................

Differential Phase and Gain 4-9..............

Making SC/H Phase Measurements 4-10........

NTSC 4-10.................................

PAL 4 -12...................................

S C / H R --- Y 4 - 1 2.............................

Making Audio Measurements 4-15...............

Time Code Display 4-16........................

Calibration 4-17.....................................

Adjusting Instrument Gain 4-17.................

Table of Contents

1740A/1750A Series Waveform/Vector Monitor User Manual

viii

Appendices

Appendix A

Performance Specifications A-1......................

Reliability A-1..............................

Electrical Specifications A-2.................

Certifications and compliances A-13...........

Appendix B

Remote Connectors B-1.............................

Remote Connector Converter B-4...............

Appendix C

User Service C-1....................................

Cleaning or Replacing the Fan Filter C-1.........

Fuse Replacement C-1........................

Graticule Light Replacement C-2...............

Cleaning C-4.................................

Replacing the CRT Filter C-5...................

Appendix D

Software Version D-1................................

Glossary G-1.......................................

Index I-1...........................................

Table of Contents

1740A/1750A Series Waveform/Vector Monitor User Manual ix

LIST OF FIGURES

Figure 2-1. Multi-Use Bezel Controls and Buttons. 2-2........

Figure 2-2. 1740A Front Panel. 2-3......................

Figure 2-3. 1750A Front Panel. 2-4......................

Figure 2-4. 1740A/ 1750A--Series Rear Panel. 2-10...........

Figure 2-5. Equipment hook-up for Operator’s Checkout

Procedure. 2-12............................

Figure 2-6. Calibrator display. 2-14.......................

Figure 2-7. Two-Line LUM filter display of color bar signal. 2-17..

Figure 2-8. Two-Line CHROM filter display of color bar signal. 2-17

Figure 2-9. Two-Line DIFF filter display. 2-18................

Figure 2-10. Two-Line R--Y display of color bar signal. 2-19......

Figure 2-11. SC/H R--Y display (NTSC). 2-19................

Figure 2-12. SC/H R--Y display (PAL). 2-20..................

Figure 2-13. Line Select display in 2 FIELD sweep. 2-21........

Figure 2-14. Vectorscope color bar display. 2-22..............

Figure 2-15. Picture mode display of color bar signal. 2-22.......

Figure 2-16. Audio display with phase error. 2-23..............

Figure 2-17. NTSC SC/H display. 2-24.....................

Figure 2-18. PAL SC/H display. 2-24.......................

Figure 3-1. The CRT menu. 3-6........................

Figure 3-2. The VECTOR CURSOR menu. 3-8.............

Figure 3-3. The WAVEFORM CURSOR menu. 3-10...........

Figure 3-4. The VECTOR+WFM CURSOR menu. 3-10........

Figure 3-5. The PRESET menu display. 3-16................

Figure 3-6. The CONFIGURE menu display. 3-19............

Figure 4-1. NTSC waveform/vector graticule. 4-2............

Figure 4-2. PAL waveform/vector graticule. 4-3.............

Figure 4-3. Dual Standard waveform/vector graticule. 4-4......

Figure 4-4. Vector targets. 4-8.........................

Figure 4-5. Differential Gain and Phase Measurements. 4-9....

Figure 4-6. NTSC dual-dot SC/H display. 4-11...............

Figure 4-7. NTSC single-dot SC/H display. 4-11..............

Figure 4-8. PAL SC/H display. 4-12.......................

Figure 4-9. Two-Line SC/H R--Y display (NTSC). 4-13.........

Figure 4-10. Two-Field SC/H R--Y display (NTSC). 4-13.........

Figure 4-11. Two-Field SC/H R--Y display (NTSC), showing

approximate 10°phase error. 4-14...............

Table of Contents

1740A/1750A Series Waveform/Vector Monitor User Manual

Figure 4-12. Two-Field SC/H R--Y display (PAL). 4-14..........

Figure 4-13. Audio displays. 4-15.........................

Figure B-1. Rear panel REMOTE connector. B-1............

Figure B-2. REMOTE adapter. B-4.......................

Figure B-3. Rear panel RS232 connector. B-5...............

Figure C-1. Graticule light replacement. C-3................

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - FAX 781.665.0780 - TestEquipmentDepot.com

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