Tektronix 1760 User Manual

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User Manual

1760 Series Component Waveform/ Vector Monitor

070-8473-05

This document supports firmware version 2.2 and above.

www.tektronix.com

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved.

Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; or c) to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

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 markings on the product. Consult the product manual for further ratings information before making connect ions to the product.

1760 Series Component Waveform/Vector Monitor User Manual

General Safety Summary

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.

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.

Refer to the manual’s installa-

1760 Series Component Waveform/Vector Monitor User Manual

General Safety Summary

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

Not suitable for

connection to

the public tele-

communica-

tions network

WARNING

High Volt-

age

Double

Insulated

Protective

Ground (Earth)

Te r mi na l

1760 Series Component Waveform/Vector Monitor User Manual

iii

General Safety Summary

1760 Series Component Waveform/Vector Monitor User Manual

Introduction

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

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

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

Option SC 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....................................

Packaging 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.......................

1760 Series Component Waveform/Vector Monitor User Manual

Table of Contents

Getting Started

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

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

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

Operator’s Checkout Procedure 2-11.................

Required Equipment 2-11....................

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

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

Operation Basics

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

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

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

SCH (Option SC Only) 3-2..................

Waveform 3-2.............................

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

Lightning 3-3..............................

Diamond 3-3..............................

Bowtie 3-4................................

Picture 3-4................................

Time Code 3-4.............................

Multiple 3-4...............................

Displaying a Signal 3-5........................

Inputs 3-5.................................

A123 / B123 3-5...........................

Parade 3-5................................

Overlay 3-6................................

Sweep 3-6................................

Using the Menus 3-7..............................

General Menu Information 3-7.................

Multi-Use Bezel Controls and Buttons 3-7.....

Moving Between Menus 3-7.................

Clear Menu 3-8............................

Exiting a Menu Function 3-8.................

1760 Series Component Waveform/Vector Monitor User Manual

Table of Contents

Filter Menu 3-9...............................

Cursor Menu 3-10.............................

Waveform Cursor Control 3-11................

Vector + Waveform (Multiple) 3-13............

Using the Cursors 3-13.........................

Line Select Menu 3-16.........................

Preset Menu 3-18.............................

Configure Menu 3-20..........................

INPUT 3-20.................................

VECTOR 3 -21..............................

FORMAT 3-21..............................

STANDARD 3-22............................

OFFSET 3-23...............................

CALIBRATE 3-23............................

REMOTE 3-25..............................

REFERENCE (1765 Only) 3-25................

Gain Menu 3-26...............................

CRT Menu 3-27...............................

Remote Operation 3-29.............................

Using Presets through the Remote 3-29.......

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 4-3.............

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

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

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

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

Vector Graticule 4-6...........................

Making Vector Measurements 4-8..............

1760 Series Component Waveform/Vector Monitor User Manual

vii

Table of Contents

Calibration 4-2....................................

Chroma Bandwidth 4-8.....................

Differential Phase and Gain 4-8..............

Making SCH Phase Measurements 4-9.........

NTSC 4-9.................................

PAL 4-1 1...................................

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

Making Audio Measurements 4-14...............

Lightning Measurements 4-15...................

Using the Diamond Display 4-17................

Using the Bowtie Display 4-19..................

Time Code Display 4-21........................

Adjusting Instrument Gain 4-2.................

Appendices

Appendix A

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

Appendix B

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

Appendix C

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

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

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

Certifications and compliances A-15...........

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

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

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

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

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

viii

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

Appendix D

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

1760 Series Component Waveform/Vector Monitor User Manual

LIST OF FIGURES

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

Figure 2-2 1760 Front Panel 2-3.....................

Figure 2-3 1760--Series Rear Panel 2-10................

Figure 2-4 Equipment hook-up for Operator’s Checkout

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

Figure 2-5 Component waveform display (A123) 2-14.......

Figure 2-6 Calibrator display 2-15.....................

Figure 2-7 Two-Line LUM filter display of color bar signal 2-18. Figure 2-8 Two-Line CHROM filter display of color bar

signal 2-19..............................

Figure 2-9 Two-Line DIFF filter display of 5-step staircase

signal 2-20..............................

Figure 2-10 Two-Line R--Y display of color bar signal 2-20.....

Figure 2-11 Two-Field SCH R--Y display (NTSC), showing

proper SCH phase 2-21....................

Figure 2-12 Two-Field SCH R--Y display (PAL), showing

proper SCH phase 2-21....................

Figure 2-13 Line Select display with 15H selected, in

2 FIELD sweep 2-22.......................

Figure 2-14 Vectorscope color bar display 2-23.............

Figure 2-15 Picture mode display of color bar signal 2-24.....

Figure 2-16 Audio display with phase error 2-24............

Figure 2-17 NTSC SCH display with internal reference

selected 2-25............................

Figure 2-18 PAL SCH displ ay 2-26.....................

Figure 2-19 Lightning Display in MII Format 2-27...........

Figure 2-20 Diamond display, showing signal within

gamut limit 2-27..........................

Figure 2-21 Bowtie display 2-28.......................

Figure 3-1 The CRT menu, showing bezel controls and

bezel buttons 3-8........................

Figure 3-2 The VECTOR CURSOR menu 3-10............

Figure 3-3 The WAVEFORM CURSOR menu 3-12.........

Figure 3-4 The VECTOR+WFM CURSOR menu with

V+T selected 3-12........................

Figure 3-5 The PRESET menu display 3-18..............

Figure 3-6 The CONFIGURE menu display with INPUT

selected 3-20............................

1760 Series Component Waveform/Vector Monitor User Manual

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 4-7........................

Figure 4-5 Differential gain and phase measurements 4-9...

Figure 4-6 NTSC dual-dot SCH display 4-11.............

Figure 4-7 NTSC single-dot SCH display 4-11............

Figure 4-8 PAL SCH display 4-12.....................

Figure 4-9 Two-Line SCH R--Y display (NTSC), with

proper SC/H phase 4-13....................

Figure 4-10 Two-Field SCH R--Y display (NTSC), showing

proper SC/H phase 4-13....................

Figure 4-11 Two-Field SCH R--Y display (NTSC), showing

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

Figure 4-12 Two-Field SC/H R--Y display (PAL), showing

proper SC/H phase 4-14....................

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

Figure 4-14 Lightning display showing correct timing 4-16.....

Figure 4-15 Lightning display showing delay 4-18...........

Figure 4-16 Diamond display showing signal inside

gamut limits 4-19.........................

Figure 4-17 Bowtie display showing a sharp null 4-21........

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

Figure B-2 Using the 1760--Series as a 1740 / 1750--Series

replacement B-4.........................

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

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

1760 Series Component Waveform/Vector Monitor User Manual

This user manual is one of a set of two manuals that document the Tektronix 1760-Series Component Waveform/Vector monitors. To purchase a service manual, please refer to “Contacting Tektronix” on Page xiv for address and phone number information.

User Manual

Instrument controls and readouts appear in ALL CAPITALS. Topics covered in the user manual are as follows:

Introduction

Getting Started

Preface

Operation Basics

Making Measurements

Appendix A

electrical and mechanical.

Appendix B describes remote control interfaces.

Appendix C covers routine service procedures, such as

replacing fuses and graticule light bulbs.

The appendixes are followed by a glossary of specialized terms and an index.

provides instrument specifications, both

1760 Series Component Waveform/Vector Monitor User Manual xi

Preface

Service Manual

Topics covered in the service manual are as follows:

Specifications

Operating Information

Theory of Operation

Performance Verification

Adjustment Procedures

Maintenance

Options

Electrical Parts List

Diagrams

Mechanical Parts List

xii

1760 Series Component Waveform/Vector Monitor User Manual

Preface

1761 Component Waveform / Vector Monitor.

1760 Series Component Waveform/Vector Monitor User Manual

xiii

Preface

Contacting Tektronix

Phone 1-800-833-9200*

Address Tektronix, Inc.

Department or name (if known) 14200 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA

Web site www.tektronix.com

Sales support

Service support

Technical support

* This phone number is toll free in North America. After office

hours, please leave a voi ce mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices.

1-800-833-9200, select option 1*

1-800-833-9200, select option 2*

Email: techsupport@tektronix.com

1-800-833-9200, select option 3*

6:00 a.m. -- 5:00 p.m. Pacific time

xiv

1760 Series Component Waveform/Vector Monitor User Manual

Introduction

Product Description

The 1760--Series Component Waveform/Vector monitors display component signal channels two ways: in parade and overlay modes and as component color vectors. A component picture monitor output is provided for display on an RGB monitor.

The 1760--Series monitors feature the Tektronix Lighting display. This display indicates everything needed to adjust setup, video gain, chroma gain, and interchannel timing for standardized playback of component video recordings.

In addition to component monitoring, all the composite waveform and vector monitoring capabilities of the 1740A--Series monitors are included in the 1760--Series monitors.

The following products are available:

The 1760--Series monitors can also be ordered with an SCHphase option (see page 1-5).

Applications

Typical applications for these half-rack size monitors include video signal monitoring in camera control units, production switcher consoles, mobile vans (“OB” vans in Europe), and field production systems.

1760 1761 PA L 1765 NTSC / PAL (dual-standard)

NTSC

VTR bridges,

1760 Series Component Waveform/Vector Monitor User Manual 1-1

Product Description

Features

H Component and composite waveform monitoring.

H Lightning display.

H Composite vector display.

H Menu-assisted operation allows more features.

H Assignable cursors for time and voltage.

H Picture monitor mode for verifying signal source.

H Stereo audio display.

H Longitudinal time code display mode for editing applica-

tions.

H SCH and color framing display (Option SC only).

H External staircase from a camera control unit can be

selected remotely.

H Internal video filters provide specialized measurements,

with dual or triple filter modes available in

OVERLAY.

H Eight video inputs can be individually displayed or

selected in various combinations.

H Nine front-panel setups can be stored for recall.

H Universal power supply accommodates AC supplies

from 90--250 V, 50--60 Hz automatically.

Description of Features

PARADE or

1-2

A notable feature of these monitors is the menu-assisted operation. An expanded feature set is possible through the use of menus and multi-use controls and buttons. When the op-

1760 Series Component Waveform/Vector Monitor User Manual

Product Description

erator selects a menu item, such as VOLTAGE/TIMING CUR-

SORS

, VARIABLE GAIN,orLINE SELECT, an on-screen label

shows the current function of the controls.

Instrument configurations such as dc restorer speed and clamp timing are made through an on-screen menu in the 1760--Series. The

FILTER menu also provides a choic e of four

filters in addition to flat.

CRT

The monitors have a bright, post-accelerated CRT with lighted internal graticule. The parallax-free internal graticule structure contains targets and markings for both the vector and waveform functions. A white phosphorus CRT is optional; refer to page 1-6 for details.

The bright CRT allows use in high ambient light conditions, such as those encountered in field production applications.

Calibrator

Vertical and horizontal instrument gain can be set using the calibrator signal. The 1 Volt calibrator signal is available in 100 kHz and F

More Information

H Standard and optional accessories are listed in the

Accessories section, which follows this produc t de scription.

H Instrument options are listed on page 1-5.

H A complete listing of instrument specifications begins on

Appendix page A-1.

(color subcarrier) rates.

1760 Series Component Waveform/Vector Monitor User Manual

1-3

Product Description

1-4

1760 Series Component Waveform/Vector Monitor User Manual

Option SC

Options

Options available for the 1760--Series include SCH phase measurement, white phosphor CRT and power cord options. Field upgrade kits listed in this section can also be used with these monitors.

The 1760--Series can be ordered with Option SC. This provides a vector display of the subca rrier-to-horizontal-sync phase relationship. It includes the same SCH capabilities as the 1750A--Series instruments.

Power Cord Options

Any of the following power cord options can be ordered for the 1760--Series. If no power cord option is specified, instruments are shipped with a North American 125 V power cord and one replacement fuse.

Unless otherwise specified, power cords for use in North America are UL listed and CSA certified. Cords for use in areas other than North America are approved by at least one test house acceptable in the country to which the product is shipped.

Option A1. Power, Universal Europe, 220 V/16 A

(Locking Power Cord)

Option A2. Power, United Kingdom, 240 V/15 A

(Power Cord)

Option A3. Power, Australia, 240 V/10 A

(Power Cord)

1760 Series Component Waveform/Vector Monitor User Manual 1-5

Options

Option A4. Power, North America, 250V/10 A

Option A5. Power, Swiss, 240 V/6 A

CRT Options

The standard instrument is shipped with a P31 (green) phosphor CRT installed. If Option 74 is ordered, the instrument is shipped with a P4 (white) phosphor CRT installed.

(Power Cord)

1-6

1760 Series Component Waveform/Vector Monitor User Manual

Standard Accessories

These accessories are included with the product:

1 Manual, user: 1760--Series (070--8473--XX)

1 Cable assembly, power: United States and Japan

only (161--0216--XX)

1 Cable assembly, power: all other countries

(161--0066--XX)

1 Fuse, cartridge: 3AG, 2A, 250V, fast-blow

(159--0021--00)

4 Light bulbs: graticule scale (150--0168--00). See

page C-1 for replacement instructions.

Accessories

4 Air filters: fan (378--0335--00). See page C-1 for

replacement instructions.

This accessory is installed on the product:

1 CRT filter: smoke gray (378--0258--00)

Optional Accessories

Manual, service: 1740A/1750A/1760--Series

(070--8469--XX)

Camera, C9 Option 20

Viewing Hood (016--0475--00)

Front-Panel Cover (200--3897--01)

1760 Series Component Waveform/Vector Monitor User Manual 1-7

Accessories

Field Upgrade Kits

1700F00 Plain Cabinet — This plain metal half-rack size cabinet is painted silver-gray. Ventilating holes in top, bottom, and sides of the cabinet allow heat generated within the instrument to dissipate.

1700F02 Carrying Case — This portable cabinet is similar to the 1700F00, but has feet, carrying handle, flipstand, and front cover.

1700F05 Side-by-Side Rack Adapter — The 1700F05 allows the user to mount two half-rack width instruments in a standard 19--inch rack.

1700F06 Blank Panel — If only one section of a 1700F05 is used, the 1700F06 Blank Panel can be inserted in the unused section to improve appearance and air flow.

1700F07 Utility Drawer — When only one side of a 1700F05 is used, this utility drawer can be installed in the unused section to provide storage. The drawer opens and closes freely, unless latched for transport.

Ordering — These items can be ordered with the monitor, or purchased through a Tektronix field office or distributor. When ordering, include both the name and number of the Field Upgrade Kits.

Installation — Cabinet installation instructions begin on page 1-12. Dimensional drawings are also shipped with each cabinet. For more information, contact a Tektronix field office or distributor.

1-8

1760 Series Component Waveform/Vector Monitor User Manual

Installation

Unpacking

Save the shipping carton and packing materials (including anti-static bag) in case it becomes necessary to ship the instrument to a Tektronix Service Center for service or repair.

Accessories

Check that the following accessory items are included:

H User Manual

H Service Manual

Note: The Service Manual is an optional accessory that must be ordered to be received.

H Power Cord

H Replacement Fuse Cartridge (1)

H Replacement Graticule Light Bulbs (4)

H Replacement Air Filters for Fan (4)

Packaging for Shipment

If you ship an instrument to a Tektronix Service Center, follow these packaging instructions:

1. Attach a tag to the instrument showing: the owner, complete address and phone number of someone at your firm who can be contacted, the instrument serial number and a description of the required service.

1760 Series Component Waveform/Vector Monitor User Manual 1-9

Installation

2. Package the instrument in the original packaging materials. If the original packaging materials are not available, follow these directions:

a. Obtain a carton of corrugated cardboard having

inside dimensions six or more inches greater than the dimensions of the instrument. Use a shipping carton that has a test strength of at least 275 pounds.

b. Surround the instrument with a protective bag

(anti-static preferred). If the instrument is not in a cabinet, wrap a cardboard pi ece around the bagged instrument to protect components.

c. Pack dunnage or urethane foam between the instru-

ment and the carton. If using Styrofoam ke rnels, overfill the box and compress by closing the lid. There should be three inches of tightly packed cushioning on all sides of the instrument.

3. Seal the carton with shipping tape, industrial stapler, or both.

Electrical Installation

Power Source

These monitors are designed to operate from a single-phase power source having one of its current-ca rrying conductors at or near earth ground (the neutral conductor). Only the line conductor is fused for over-current protection. Systems that have both current-carrying conductors live with respect to ground (such as phase-to-phase on multiphase systems) are not recommended as power sources. A protective ground connection by way of the grounding conductor in t he power cord is essential for safe operation.

1-10

1760 Series Component Waveform/Vector Monitor User Manual

Installation

WARNING

When power is supplied, line voltage will be present in the instrument, even if the POWER switch is set to STANDBY.

Mains Frequency and Voltage Range

The 1760--Series monitors operate at 50 and 60 Hz, over the range of 90--250 Volts, without operator adjustment.

Remote Connector

The rear-panel REMOTE connector is a 25-pin, D-type connector. It provides the input for horizontal, and remote sync. For more information about the remote connector, see page 2-8 and page B-1.

RGB/YRGB staircase, external

RS232 Connector

The rear-panel RS232 connector is a 9-pin subminiature Dtype connector that provides a serial interface for remote control. The RS232 pin assignments are on page B-1.

Operational Changes

No operational modifications are made to these monitors through internal jumper settings. Input coupling,

STORER

configurations are changed through the on-screen menu. Instrument configuration is described on page 3-20.

clamp time, RGB/YRGB selections and other similar

DC RE-

1760 Series Component Waveform/Vector Monitor User Manual

1-11

Installation

Mechanical Installation

All qualification testing was performed with a Tektronix 1700F00 cabinet installed. To guarantee compliance with specifications, operate the instrument in a cabinet or rackmount adapter. The Tektronix 1700F00, 1700F02, and 1700F05 provide the proper electrical environment, supply adequate shielding, minimize handling damage, and reduce dust collection within the instrument.

Cabinets

The 1700F00 is a plain cabinet designed for permanent installations, and the 1700F02 is a portable cabinet with handle, feet, flipstand, and front cover. Ordering information is given on page 1-8.

WARNING

Do not lift a cabinetized instrument without installing the mounting screws. There is nothing to hold the instrument in the cabinet if it is tipped forward.

Custom Installation

For applications such as consoles, the instrument can be mounted with front molding flush or protruding from the console. In both cases, allow approximately three inches of rear clearance for BNC and power-cord connections. To mount the instrument safely, attach it to a shelf strong enough to hold its weight, using the four 0.156-inch diameter holes in the bottom of the 1700F00 cabinet. Refer to the data sheet included with the cabinet for hole locations.

1-12

1760 Series Component Waveform/Vector Monitor User Manual

Installation

Rackmounting

The 1760--Series monitors are half-rack width and three rack units high. They require approximately three inche s of rear clearance for power cord and cable connections, and 20 inches in front of a rack for i nstallat ion and removal of the instrument.

The optional 1700F05 rack adapter allows two Tektronix half-rack instruments to be mounted side-by-side in a rack. If only one section of the rack adapter is used, a 1700F06 blank panel or 1700F07 utility drawer can be inserted in the unused section. See page 1-8 for ordering information.

1760 Series Component Waveform/Vector Monitor User Manual

1-13

Installation

1-14

1760 Series Component Waveform/Vector Monitor User Manual

Instrument Configuration

Focus, scale illumination, signal intensity, readout intensity, and trace rotation are set t hrough the

Several instrument operating parameters can be set through

CONFIG menu.

the

Instructions for using these menus begin on page 3-20.

CRT menu.

1760 Series Component Waveform/Vector Monitor User Manual 1-15

Instrument Configuration

1-16

1760 Series Component Waveform/Vector Monitor User Manual

Getting Started

Front-Panel Controls

This overview of front-panel controls refers to Figure 2-2.

C o n t r o l s --- S w i t c h e s --- L E D s

H All front-panel controls are the continuous action

type, and all front-panel buttons are push and release toggle switches.

H Green LEDs light to indicate the current switch

selection.

At A Glance

POWER

H ON/ST ANDBY turns the instrument on or to standby

status. An LED indicates when power is on.

WARNING

If an appropriate power source is supplied to t his instrument, line voltage will be present, even when in mode. Do not operate the instrument without a cabinet or rack adapter such as those described on page 1-8; serious injury could result.

STANDBY

Instrument Reset

Certain conditions may cause the 1760--Series instrument front-panel controls to become locked. Reset as follows:

H Turn off instrument power.

1760 Series Component Waveform/Vector Monitor User Manual 2-1

At A Glance

H Depress and hold the CLEAR MENU and WAVEFORM

buttons while you turn instrument power on again. Hold both buttons in until the instrument returns to its normal operating state.

H If this reset does not unlock the controls, contact

your Tektronix field office or call Tektronix at the phone number listed in the front of this manual.

Multi-use Controls

H The center three controls located under the CRT have

functions assigned and labeled through the onscreen menus and readouts. These controls will be referred to as Bezel Controls. See Figure 2-1.

H Five small buttons along the right side of the

enable users to make selections from on-screen menus. These buttons will be referred to as Bezel Buttons.

VERTPOS

HORIZPOS

CLEAR

CRT

Five Bezel Buttons

2-2

Three Bezel Controls

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

1760 Series Component Waveform/Vector Monitor User Manual

At A Glance

WAVE F O R M /

VECTOR MONITOR

1760

AUDIO

WAVEFORM

DISPLAY

VECTOR

SCH

MULTIPLE

PICTURE

LIGHTNING

INPUT

CH-A

BOWTIE

TIME CODE

CH-B

MENUSWEEP

LINE

CH-A1

HORIZ POS

CRT

REF

PARADE

CLEAR

POWER

EXT

OVERLAY

ON/

STANDBY

FILTER

CURSOR

LIN SEL

PRESET

CONFIG

GAIN

FIELD

CH-B1

MAG

CH-B3

CH-A2

CH-A3

CH-B2

RESTORE

DC REST

A 123

B 123

VERT POS

Figure 2-2. 1760 Front Panel.

1760 Series Component Waveform/Vector Monitor User Manual

2-3

At A Glance

POSITION

H VERT POS allows the signal display to be moved

vertically. Offsets for channels A2/A3 and B2/B3 are enabled through the

HORIZ POS allows the signal display to be moved

CONFIGURE menu.

horizontally.

DISPLA Y

H WAVEFORM provides voltage vs. time display of the

video signal.

VECTOR presents an XY plot of demodulated

chrominance phase and amplitude. When a component signal is viewed (input Y, P

COMPONENT through the CONFIG—INPUT menu), VECTOR plots CH-2 versus CH-3.

B,PR

and select

AUDIO amplitude and phase is monitored using a

calibrated X/Y Lissajous display.

SCH (OPTION SC ONLY) provides a vector display of

the subcarrier-to-horizontal-sync phase relationship.

LIGHTNING provides a LIGHTNING or DIAMOND

component display, determined by the CONFIGURE—

FORMAT

DIAMOND evaluates the GBR signal for gamut limit

menu setting.

violations and color errors due to gamma correctors.

LIGHTNING is used with color difference signals (Y,

and PR). The selection of GBR, SMPTE/ EBU,

BETA,

and the electronic

BOWTIE provides a two-line display of component

or MII affects the presentation of the signal

LIGHTNING graticule.

signals: line one (left half of graticule) shows CH-1 minus CH-2 and line two shows CH-1 minus CH-3.

2-4

PICTURE displays the input signal as a picture.

1760 Series Component Waveform/Vector Monitor User Manual

At A Glance

H TIME CODE provides monitoring of longitudinal

time code in a frame-rate display.

MULTIPLE allows simultaneous selection of WAVE-

FORM

and VECTOR DISPLAY modes.

SWEEP

Sweep buttons are used to select the waveform sweep rate.

LINE/FIELD toggles through four sweep rate selec-

tions: one line, two line, one field, and two field. Two line and two field selections not available with

PARADE or A123 or B123 display.

MAG turns on the sweep magnifier. See page 3-6.

DC REST

H RESTORE turns the DC Restorer on or off. Set DC

restorer speed and clamp point through the

FIGURE

menu, shown on page 3-20.

REF

H EXT toggles between external (EXT LED on) and

internal reference. Internal reference can be configured for component operation, and two external reference inputs can be designated for dual-standard instruments. See

CONFIGURE menu on page 3-20.

INPUT

H Selecting a front-panel input causes the signal that is

input to the corresponding rear-panel connector to be displayed on screen.

CON-

1760 Series Component Waveform/Vector Monitor User Manual

2-5

At A Glance

H Without PARAD E or OVERLAY selected, only one input

selection can be made at a time. Each input channel button (including

A123 / B123) toggles between A

and B, and is cancelled when another input button is pressed.

H With

PARADE or OVERLAY selected, multiple input

selections can be made; input buttons select both, or off, and do not cancel each other.

H Selecting

CH-A1, CH-A2, and CH-A3 inputs (B123 displays the CH-B1, CH-B2, and CH-B3 inputs). Selecting A123or B123 turns off all other input channels. When PARADE or OVERLAY is selected, A123 and B123 can

A123 provides a side-by-side display of the

be displayed together and in combination with other inputs.

PARADE displays up to four input channels side-by-

side, with any additional inputs overlaid. Selecting

PARADE displays the input channel(s) last selected

PARADE, allowing a custom configuration of

for inputs. In

PARADE mode, the LINE/FIELD button

offers only two choices: one line and one field.

OVERLAY provides an overlaid display of all se-

lected inputs.

A, B,

2-6

Push the desired menu button to enter that menu and enable the associated functions. Push the button again to exit the menu and disable the function. Refer to page 3-7 for more information about using menus.

FILTER allows choice of flat or filtered display of the

waveform signal.

CURSOR enables timing cursors, voltage cursors,

vector cursors and markers.

LIN SEL allows the selection of a single line or group

of lines for display.

1760 Series Component Waveform/Vector Monitor User Manual

At A Glance

H PRESET allowstheusertostoreandrecallupto9

front-panel setups. One additional recall is factory pre-programmed. Presets one through eight can also be accessed remotely.

CONFIG allows the user to configure several operat -

ing parameters, such as input coupling, dc restorer speed, and internal reference designati on.

GAIN provides selection of X1, X5, X10, and variable

gain.

CRT menu allows adjustment of CRT focus, signal

intensity, and trace rotation.

CLEAR MENU turns off the selection portions of the

menu readout. When

CLEAR MENU has been used to

clear a menu readout, push the menu button once to reinstate the readout, and once again to exit the menu.

1760 Series Component Waveform/Vector Monitor User Manual

2-7

At A Glance

Rear-Panel Connectors

The following is an overview of rear-panel connectors. Figure 2-3 shows the 1760--Series rear panel.

Loop-Through Inputs

H INPUTS A, A1, A2, A3, B, B1, B2, and B3 are passive

loop-through video inputs, compensated for 75 Ω. The front-panel which channel(s) are displayed. Inputs 1, 2, and 3 are designed for component signals. All inputs can be used with composite signals.

EXT REF is a 75 Ω compensated loop-through

synchronization input. Internal or external reference is selected through the front-panel the LED lights to show when external is selected. The instrument will operate from external references of composite video or black burst.

INPUT switch settings determine

REF EXT switch;

Outputs

H PIX OUT is a 75 Ω compensated output of the video

signal selected by the front-panel This signal has bright-up in is used to drive a picture monitor.

INPUT switches.

LINE SELECT mode, and

PIX OUT strobe is

not present below line 11.

GBR provides a GBR output for a picture monitor.

Multi-Pin Connectors

H REMOTE is a 25-pin subminiature D-type connector

which uses TTL signal or ground closures to provi de remote control of many front-panel functions. For more information about the remote connec tor, see page 2-8 and page B-1.

RS232 is a 9-pin subminiature D-type connector that

provides a serial interface for rem ote control.

2-8

1760 Series Component Waveform/Vector Monitor User Manual

At A Glance

Fuse

H The instrument’s mains fuse should be replaced only

with a 250V, 2A, F-type cartridge fuse. A replacement fuse is included with the instrument.

AC Power

H The AC POWER plug is a standard ac plug receptacle

for 120 or 240 Vac power mains. The plug is compatible with any of the power cord options available with the 1760--Series. The monitors operate at 50 and 60 Hz, over the range of 90--250 Volts, without operator adjustment.

Fan Filter

H Four replacement air filters for the fan are included

with the instrument. Refer to page C-1 for replacement and cleaning instructions.

1760 Series Component Waveform/Vector Monitor User Manual

2-9

At A Glance

AA1

BB1



113

DIE IN DIESEM GERAT ENTSTEHENDE ROHTGENSTRAHLUNG IST

AUSREICHEND AB GESCHIRMT.

75 OHM LOOP--THROUGH COMPENSATED

BESCHLEUNIGUNGSPANNUNG KLEINER ALS 20KV.

REMOTE

FUSE

REPLACE

TO AVOID

PIX

OUT

EXT

REF

WARNING

PROTECTIVE

GROUNDING

THE POWER COR D

ELECTRICAL SHOCK,

EARTH GROUND.

CONDUCTOR MUST

BE CONNECTED TO

RS232

110 VA MAX

90--- 250V

50/60 HZ

WITH

F TYPE

250V 2A

Figure 2-3. 1760 ---Series Rear Panel.

2-10

1760 Series Component Waveform/Vector Monitor User Manual

Operator’s Checkout

Procedure

Before proceeding, read At A Glance startingonpage2-1.

This procedure is designed for operator familiarization and for checking basic instrument operation (not measurement quantities or specifications). All illustrations are of the 1765 unless otherwise noted.

If performing this procedure reveals imprope r instrument operation, first check the operation of the associated equipment. If the associated equipment is operating normally, refer the 1760--Series to qualified service personnel for repair or adjustment.

Required Equipment

The following equipment is required to perform this procedure:

1. Television Signal Generator with:

Composite Color Bars Component signal (Y, B--Y, R--Y) Channel Timing (Bowtie) Black Burst or comparable signal with burst and sync. For example: TEKTRONIX TSG 130--Series Multifor-

mat Signal Generator

2. Coaxial Cable, 75Ω (5)

For example: 42-inch RG59U (Tektronix Part No.

012-0159-00)

3. 75Ω Terminators, End-line (4)

For example: (Tektronix Part No. 011-0102-00)

1760 Series Component Waveform/Vector Monitor User Manual 2-11

Operator’s Checkout Procedure

Initial Equipment Connections

H Connect the 1760--Series to an appropriate AC power

source.

H Connect the generator NTSC output (COMPOSITE for

TSG131) to the CH-A input. Connect the CH-A loopthrough to the EXT REF input and connec t a 75Ω terminator to the EXT REF loop-through. See Figure 2-4.

H Connect the generator Y output to the CH-A1 input.

Connect B--Y to CH-A2 and R--Y to CH-A3. Connect a 75Ω terminator to each loop-through.

H Set the generator FORMAT to NTSC (COMPOSITE for

PAL ) .

TSG 130 --- SERIES

EXT REF

B-YR-Y

NTSC

1760---SERIES

A1A2

Figure 2-4. Equipment hook-up for Operator’s Checkout Procedure.

BB1

2-12

1760 Series Component Waveform/Vector Monitor User Manual

Procedure

Operator’s Checkout Procedure

1. Initialize the Front-Panel Controls

Enter the button corresponding to

PRESET menu and select FACTORY. Press the bezel

RECALL. The front-panel controls

are now set to the factory preset (described on page 3-18), and the the instrument is in the

CH-A INPUT displayed in two-line sweep.

PRESET menu is automatically exited. Notice that

WAVEFORM display mode with the

2. Adjust the Display

Use the

VERT POS and HORIZ POS controls to center the

display.

Enter the

CRT menu. DISPLAY will be outlined. Adjust the

bezel controls for optimum focus, graticule scale illumination, and signal intensity. Select

READOUT and adjust the

right bezel control for desired readout intensity. Select

TRACE and adjust the center bezel control for a level trace.

Exit the

CRT menu. The changes made while in the menu

remain in effect.

3. Input Channel Selection

Press the

CH-B input (no signal applied).

the

Press the and displays the toggle to the

CH-A/CH-B button to toggle from the CH-A input to

CH-A1/CH-B1 button. This cancels the CH-B input

CH-A1 input. Press this button again to

CH-B1 input.

Select the Y, B--Y, R--Y output format on the signal generator. Press the 1760--Series

CH-B1 input. The A123 indicator lights and a c omponent

the parade of

CH-A1, CH-A2,andCH-A3 is displayed. See

Figure 2-5. Press the

B123 (a display of the CH-B1, CH-B2,andCH-B3 inputs).

Select any other input, which cancels the Now press the

A123/B123 button again, and note that the B123

A123/B123 button. This cancels

A123/B123 button again; this toggles to

B123 selection.

selection is restored.

1760 Series Component Waveform/Vector Monitor User Manual

2-13

Operator’s Checkout Procedure

Figure 2-5. Component waveform display (A123).

Press the PARADE/OVERLAY button. The PARADE indicator lights, and the inputs previously selected for parade are restored (in this case, factory preset). During

CH-A1, CH-A2, and CH-A3 from the

PARADE (or OVERLAY) operation, all

input channel buttons (including through A, B, both, and off. Press the repeatedly until it sequences through B, both, off, and back to A (

Press the

CH-A3 selected).

CH-A button. Note that this now adds to the display

rather than cancelling the previous input selection. Up to four inputs can be shown in parade, and any additional signals are overlaid.

Press the

CH-A2 signals are superimposed. Exit PARADE/OVERLAY

PARADE/OVERLAY button again. The CH-A1 and

mode. Note that the inputs selected before entering parade or overlay mode (B123) are restored.

A123/B123) sequence

CH-A3/CH-B3 input

2-14

1760 Series Component Waveform/Vector Monitor User Manual

Operator’s Checkout Procedure

4. Check Gain

The 1760--Series internal calibrator can be used to check instrument calibration. Select

CH-A input and set the genera-

tor for NTSC Color Bars output (COMPOSITE for PAL).

Enter the configuration menu and select

CALIBRATE. Turn on

the calibrator signal and note that the amplitude is 140 IRE (1.0 V PAL), with one cycle per division. See Figure 2-6.

Select overlays the compass rose. Return to

VECTOR display mode. Note that the calibrator signal

WAVEFORM display

mode.

Exit the configuration menu. Note that the calibrator signal is automatically turned off. (For more information on using the calibrator signal, see page 4-25.)

10S/DIV

Figure 2-6. Calibrator display.

1760 Series Component Waveform/Vector Monitor User Manual

2-15

Operator’s Checkout Procedure

5. Gain Control

There are three calibrated vertical gain settings available (

X5,andX10), as well as an independent variable gain control.

Enter the and the display is amplified. Select

GAIN menu and select X5. Note that X5 is outlined

X10. Note that X10 is

X1,

outlined and the display is amplified again.

Select variable gain and use the right bezel control to adjust the gain to the minimum and maximum settings.

Exit the able and X10 gain settings are restored. Exit the Adjust the

GAIN menu, then enter it again. Note that the vari-

GAIN menu.

VERT POS control to place the signal on baseline.

6. Select Timing Reference

Thefactorypresetselectsatwo-linesweep. Notethat pressing the

LINE/BUTTON button will cycle through four

selections: one-line, two-line, one-field, and two-field sweeps. Return to the two-field sweep.

Press the 1 S/Div sweep is displayed. Use the view the magnified display, then turn off the

MAG button. The MAG indicator lights and a

HORIZ POS control to

MAG.(Seepage

3-6 for a list of sweep rates.)

2-16

7. Voltage and Timing Cursors

The 1760--Series voltage, timing, and vector cursors can be used to measure any portion of the displayed signal.

Enter the cursors;

CURSOR menu (factory preset select s volta ge

VOLT is outlined on screen). The voltage cursors

appear as two dashed horizontal lines: cursor 1 has single dashes and cursor 2 has double dashes. Use the left and center bezel controls to adjust the cursors individually, or the right control to move both cursors by the same amount

(TRACK). The voltage difference between the cursors is

displayed as ∆ ence point and press point on the signal (use the

V. Align a voltage cursor with a signal refer-

MAG. The cursor is still at the same

HORIZ POS control if needed to

view the cursor).

1760 Series Component Waveform/Vector Monitor User Manual

Operator’s Checkout Procedure

Select timing cursors (TIME). The timing cursors appear as two vertical dashed lines: cursor 1 has single dashes and cursor 2 has double dashes. The time difference between them is displayed as ∆ together (

V+T). Note that when CONTROL is set to TIME, the

three bezel controls adjust timing cursors; when set to

T. Select voltage and timing cursors

VOLT,

they adjust voltage cursors.

Select markers

(MARK). The markers appear as three dashed

lines; marker 1 has long single dashes, marker 2 has double dashes, and marker 3 has short dashes. Use the three bezel controls to position the markers to a reference point on the etched graticule (such as peak white, baseline, and sync tip). Select

X5 gain and notice that the markers do not move.

These markers can be used to highlight desired features of the waveform graticule.

Select displayed (

VECTOR display mode. The vector cursor menu is

POLAR hasbeenselectedbythefactorypreset).

The polar cursor appears as cross hairs. Use the left bezel control to move the cursor away from graticule center, and the center bezel control to move the cursor around the graticule center point. Note that the amplitude and phase of the cursor are displayed on screen.

Select

MARK and set QUANTITY to 2. Note that the two

graticule markers appear as small numbered boxes. Set

CONTROL to 1 and use the left bezel control to move marker

1 away from the graticule center. Use the center control to move the marker around the graticule center point. Change

CONTROL to 2. Use the bezel controls as for marker 1.

Select X5 gain and note that the markers do not move. These markers can be used to highlight desired features of the vector graticule. Return to

WAVEFORM display mode.

Exit the cursor menu, then enter the menu again. Note that

MARK is still selected and marker positions are unchanged.

Exit the menu. (For more information about using the cursors, see page 3-10.)

1760 Series Component Waveform/Vector Monitor User Manual

2-17

Operator’s Checkout Procedure

8. Filter Selection

The 1760--Series offers several filter selections for the waveform display.

Ensure that the instrument is operatin g in waveform mode. Enter the

FILTER menu (FLAT is selected by the factory

preset). Select display of the luminance portion of the signal. See Figure 2-7.

LUM filter. This provides a low-pass-filtered

10S/DIV

FLAT

LUM

CHROM

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

Select CHROM. This provides a bandpass-filtered display of the chrominance portion of the signal. See Figure 2-8.

Select

F+L (FLAT plus LUM). The flat display is superim-

posed on the luminance-filtered display (overlay is selected by the factory preset). Press the appropriate bezel button (not the front-panel

PARADE button) to select parade. The

flat display is now on the left, followed by the luminance-filtered display.

DIFF

R--Y

SCH R--Y

F+L

F+L+C

2-18

1760 Series Component Waveform/Vector Monitor User Manual

Operator’s Checkout Procedure

10S/DIV

FLAT

LUM

CHROM

DIFF

R--Y

SCH R--Y

F+L

F+L+C

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

Select F+L+C (FLAT plus LUM plus CHROM). The display is similar to the

F+L display, with the chrominance-filtered

signal added on the right.

Select

DIFF. Select the generator 5-step staircase signal. The

differentiated-step filtered display appears similar to Figure 2-9.

Select

R --- Y. This provides a demodulated chrominance-vs.-

time display. Use the right bezel control to adjust vector phase. See Figure 2-10.

Select

S C H R --- Y (Option SC only). This provides a dem odu-

lated SCH sync-locked oscillator display, useful for viewing SCH variations versus time. A sample NTSC display is shown in Figure 2-11. NTSC signals can be viewed in either line or field sweeps. For PAL applications, view the signal in two-field sweep (see Figure 2-12). Use the right bezel control to adjust vector phase.

Exit the filter menu. Enter the menu again and note that the filter selections are unchanged. Select

1760 Series Component Waveform/Vector Monitor User Manual

FLAT . Exit the menu.

2-19

Operator’s Checkout Procedure

10S/DIV

FLAT

LUM

CHROM

DIFF

R--Y

SCH R--Y

F+L

F+L+C

Figure 2-9. Two-Line DIFF filter display of 5-step staircase signal.

CHROM

SCH R--Y

VECTOR PHASE

FLAT

LUM

DIFF

R--Y

F+L

F+L+C

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

2-20

1760 Series Component Waveform/Vector Monitor User Manual

Operator’s Checkout Procedure

FLAT

LUM

CHROM

DIFF

R--Y

SCH R--Y

F+L

F+L+C

VECTOR PHASE

Figure 2-11. Two-Field SCH R ---Y display (NTSC), showing proper SCH phase.

FLAT

LUM

CHROM

DIFF

R--Y

SCH R--Y

F+L

F+L+C

VECTOR PHASE

Figure 2-12. Two-Field SCH R ---Y display (PAL), showing proper SCH phase.

1760 Series Component Waveform/Vector Monitor User Manual

2-21

Operator’s Checkout Procedure

9. Line Selection

Line select is available in

PICTURE display modes. Enter the LINE SELECT menu and

turn the center bezel control until the readout displays

131

. In a two line display, line 131 appears on the left,

WAVEFORM, VECTOR, SCH,and

ALL

followed by line 132.

Select field. Select

2FIELDsweep and note the intensified line in each

15H and note that 15 lines are now intensified

in each field (intensified portion appears wider). The readout is now

Select and a

1of2. Now only the first field has intensified lines,

NEXT FIELD selection appears. Select NEXT FIELD and

ALL 131-- -- 145. See Figure 2-13.

note that the intensified lines now appear only in the second field and the readout is

F2 131 F2 145.

Select MULTIPLE with WAVEFORM, VECTOR, and SCH. Note that the displays appear in the following order:

VECTOR, SCH.

WAVEFORM,

Exit the line select menu. Enter the menu again and note that the user settings are unchanged. Exit the menu.

ALL131

-- -- 1 4 5

LINE SEL

Figure 2-13. Line Select display with 15H selected, in 2 FIELD sweep.

FIELD

ALL 1OF2

15H

1OF81OF4

2-22

1760 Series Component Waveform/Vector Monitor User Manual

10. Vectorscope Display

Operator’s Checkout Procedure

Select

VECTOR display mode. Adjust the right bezel control

to place the burst vector on the 180° graticule line. The display should appear similar to Figure 2-14.

11. P icture Monitor Display

Select

PICTURE display mode. A picture monitor display of

the selected input signal appears. This can be used to visually identify the signal source. See Figure 2-15.

12. Audio Display

To obtain an audio display, connect the left and right audio signals to the rear-panel REMOTE connector as follows: +Y to pin 8, --Y to pin 9, +X to pin 10, and --X to pi n 11. Select

AUDIO display mode.

An audio signal with no phase error appears as a straight line extending from the audio box in the upper right corner of the graticule to the box in the lower left. A signal with phase error appears as an opening in a lissajous waveform. See Figure 2-16.

VECTOR PHASE

Figure 2-14. Vectorscope color bar display.

1760 Series Component Waveform/Vector Monitor User Manual

2-23

Operator’s Checkout Procedure

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

Figure 2-16. Audio display with phase error.

2-24

1760 Series Component Waveform/Vector Monitor User Manual

Operator’s Checkout Procedure

13. SCH Display (Option SC Only)

SCH display mode provides a vector display of the

The subcarrier-to-horizontal-sync phase relationship. (SCH measurements appear on page 4-10.)

For NTSC operation, verify th at select

SCH display mode. This provides a dual-dot display,

as shown in Figure 2-17. Select

REF is set to internal, then

EXT REF. This provides the

single-dot display, shown in Figure 2-18.

For PAL opera tion, the

REF selection does not affect the

display. A sample PAL display is shown in Figure 2-18.

VECTOR PHASE

Figure 2-17. NTSC SCH display with internal reference selected.

1760 Series Component Waveform/Vector Monitor User Manual

2-25

Operator’s Checkout Procedure

Figure 2-18. PAL SCH display.

14. Lightning Display

For a Lightning display, select the Y, B --Y, R--Y format on the signal generator. Enter the

FORMAT. Select the proper format for your signal source (GBR, SMPTE/EBU, BETA or MII). Under DISPLAY, select LIGHTNING. Le ave the configurati on menu selected.

Select

LIGHTNING display mode. The display should be

similar to Figure 2-19.

Under

DISPLAY, select DIAMOND. Select 100% Bars on the

signal generator. Figure 2-20 shows a sample display. Exit the configuration menu. Information on using the Lightning and Diamond displays appears on page 4-16.

VECTOR PHASE

CONFIG menu and select

2-26

1760 Series Component Waveform/Vector Monitor User Manual

INPUT

VECTOR

FORMAT

STANDARD

OFFSET

CALIBRATE

REMOTE

REFERENCE

Operator’s Checkout Procedure

DISPLAY

LIGHTNING

DIAMOND

525/60

GBR

SMPTE/EBU

BETA

MII

625/50

GBR

SMPTE/EBU

BETA

MII

Figure 2-19. Lightning Display in MII Format.

INPUT

VECTOR

FORMAT

STANDARD

OFFSET

CALIBRATE

REMOTE

REFERENCE

DISPLAY

LIGHTNING

DIAMOND

525/60

GBR

SMPTE/EBU

BETA

MII

625/50

GBR

SMPTE/EBU

BETA

MII

Figure 2-20. Diamond display, showing signal within gamut limit.

1760 Series Component Waveform/Vector Monitor User Manual

2-27

Operator’s Checkout Procedure

15. Bowtie Display

For a Bowtie display, select the Channel Timing signal from the generator. Select ries. The display should appear similar to Figure 2-21. Information on making measurements with the Bowtie display appears on page 4-21.

BOWTIE display mode on the 1760--Se-

Figure 2-21. Bowtie display.

This concludes the Operator’s Checkout Procedure.

2-28

1760 Series Component Waveform/Vector Monitor User Manual

Operation Basics

Functional Overview

The Functional Overview describes instrument functions in greater detail than At A Glance. For menu operation, refe r to page 3-7. Detailed Measurement procedures are given in Basic Measurements, beginning on page 4-1.

Display Modes C omposite Component

H VECTOR ••

H SCH (Option SC only) •

H WAVEFORM ••

H AUDIO ••

H LIGHTNING and DIAMOND •

H BOWTIE •

H PICTURE ••

H TIME CODE ••

H MULTIPLE displays ••

Vector

The vector mode presents an XY plot of demodulated chrominance phase and amplitude. The angle represents chrominance phase and the distance from the center represents chrominance amplitude. A bezel control is assigned to adjust

VECTOR PHASE.

With a component input (A123 or B123), VECTOR displays CH-3 (typically R--Y or P

) versus CH-2 (typically B--Y or

1760 Series Component Waveform/Vector Monitor User Manual 3-1

Functional Overview

SCH (Option SC Only)

SCH provides a vector display of the subca rrier-to-horizontal-

sync phase relationship. The burst vector and the phase of the 50% point of the leading edge of sync are displayed.

Subcarrier-to-horizontal phase and color framing are displayed graphically in the polar the field is displayed as a moving sync vector dot. Correct color framing can be verified by the position of the single sync vector dot, relative to the color subcarrier vector when the monitor is externally referenced.

The allow reliable color framing comparison. Using this method of determining relative color framing eliminates the requirement for a precise horizontal timing match between the reference and measured signals.

SCH display. Sync jitter over

SCH phase of the reference signal is separately sensed to

Waveform

The waveform monitor portion of the instrument provides a voltage-versus-time display of the video signal. The selected input can be displayed in one or two line, or one or two field sweeps. In

LINE SELECT mode, identified lines of any field

can be selected and displayed. Multiple inputs can be displayed at the same time, or multiple filters can be applied to one input for signal analysis.

TIME and VOLT AGE cursors can

be activated and positioned for re ference or measurement.

LINE SELECT isdiscussedonpage3-16andCURSORS are

discussed on page 3-10.

Audio

Audio amplitude and phase is monitored using a calibrated X/Y Lissajous display. The opera tor can verify that the program audio will be properly reproduced on both monaural and stereo receivers. Correct phasing between two audio channels is quickly verified by the direction of the display.

3-2

1760 Series Component Waveform/Vector Monitor User Manual

Functional Overview

Lightning

The front-panel LIGHTNING button is used for both t he L ight- ning display and the Diamond display. For Lightning display, use the

DISPLAY to LIGHTNING and select the appropriate format for

your system. Push

Selecting Lightning mode forces the instrument to A123 input display; it can be changed to B123. Apply component signals Y, P A2, and A3 or CH-B1, B2, and B3. Procedures for using the Lightning display can be found in the Operator’s Checkout andonpage4-16.

CONFIG—FORMAT menu (page 3-21) to set the

CLEAR MENU to clear the menu readout.

and PRto the rear panel connectors for CH-A1,

NOTE

A123 (or B123) must be configured as a component input. See

CONFIGURE menu, page 3-20.

Diamond

For a Diamond display, push the LIGHTNING button and use

CONFIG—FORMAT menu to set DISPLAY to DIAMOND.

the Apply a component signal to the rear panel connectors for CH-A1, A2, and A3 or CH-B1, B2, and B3. The Diamond display evaluates the GBR signal for gamut limit violations and color errors due to gamma correctors. Signals which are inside the electronic diamond graticule are within gamut limit. For signals outside the diamond, the graticule is labeled with G, B, and R to determine the color problem area.

NOTE

A123 (or B123) must be configured as a component input. See

CONFIGURE menu, page 3-20.

1760 Series Component Waveform/Vector Monitor User Manual

3-3

Functional Overview

Bowtie

In BOWTIE mode, the display is forced to a two line or field sweep and A123 input is selected. The left half of the display shows CH-1 minus CH-2 and the right half shows CH-1 minus CH-3. If the timing between channels is matched, the centers of the bowties will be centered and not skewed. If CH-2 is delayed with respect to CH-1, the skew moves to the right. If CH-2 is advanced with respect to CH-1, the skew moves to the left.

NOTE

A123 (or B123) must be configured as a component input. See

CONFIGURE menu, page 3-20.

Picture

The PICTURE mode allows the operator to verify the signal source. In

PICTURE mode with LINE SELECT on, a bright-up

marker identifies the selected line in the picture.

Time Code

Longitudinal time code is monitored in a frame-rate display to allow observation of amplitude, synchronization, and phase with respect to reference vertical sync. Synchronization is confirmed by the stationary display and time code phase is determined by horizontal position of the time code sync word on the CRT.

Multiple

When MULTIPLE is pushed, WAVEFORM, VECTOR,andSCH (Option SC only) can be selected at the same time.

3-4

When exiting previous (non-

MULTIPLE again, the previous MULTIPLE display settings will

MULTIPLE, the instrument will return to the

MULTIPLE) DISPLAY settings. When entering

be restored.

1760 Series Component Waveform/Vector Monitor User Manual

Displaying a Signal

Inputs

There are eight rear-panel loop-through inputs, which may eliminate the need for an external routing switcher. The inputs can be displayed singly or in combination.

Functional Overview

Without

PARADE or OVERLAY selected, only one input selec-

tion can be made at a time. Each input channel button (including

A123 / B123) toggles between A and B, and is

cancelled when another input button is pressed.

PARADE or OVERLAY selected, the input channels can be

With displayed in combination. Pushing an input channel button sequences through the labeled channels, both, then off. Pushing another input button does not cancel the current selection, but adds to it. To return to “single input” operation, push the

PARADE/OVERLAY button until it is off (LED is no

longer lighted).

A123 / B123

Selecting A123 provides a side-by-side display of the CH-A1,

CH-A2, CH-B3 inputs). This is designed for monitoring component

and CH-A3 inputs (B123 displays the CH-B1, CH-B2, and

signals.

Parade

Selecting PARAD E displays the input channels last selected

PARADE, allowing a custom configuration of inputs. In

for

PARADE mode, the LINE/FIELD button offers only two choices:

one line and one field.

PARADE allows up to four channels to be displayed side-by-

side. Additional channels will be overlaid.

1760 Series Component Waveform/Vector Monitor User Manual

3-5

Functional Overview

Overlay

OVERLAY superimposes the selected input signals. In OVERLAY

providing one line, two line, one field, and two field displays.

Sweep

Sweep buttons are used to select the waveform sweep rate.

LINE/FIELD toggles through four sweep rate selections: one

line, two line, one field, and two field. In

LINE/FIELD button becomes a two-way switch, toggling be-

tween line and field.

The sweep rate is displayed in the upper ri ght corner of the CRT (for field-rate sweeps, 1 F or 2 F is displayed).

mode, the LINE/FIELD button remains a four-way toggle,

PARADE mode, the

MAG button is used with LINE/FIELD to provide horizontal

The magnification of each rate as follows:

H One line magnified = 200 ns/division

H Two line magnified = 1 µs/division

H One field or two field magnified = approximately

X20 magnification.

3-6

1760 Series Component Waveform/Vector Monitor User Manual

Using the Menus

General menu information here is followed by detailed information about each menu:

PRESET, CONFIG, GAIN

parameters, see

CONFIG and CRT menu information.

General Menu Information

Push the desired menu button to obtain an on-screen menu readout.

Multi-Use Bezel Controls and Buttons

Menu selections appear along the right side of the screen. Descriptive labels, when present, appear in tual selections appear in selection outlined. Use the five buttons along the right side of the CRT (referred to as bezel buttons) to change the selections.

and CRT. To set instrument operating

FILTER, CURSOR, LIN SEL,

ITALIC text. Ac-

STANDARD text, with the present

The center three controls under t he CRT are referred to as Left, Center, and Right bezel controls. Control functions vary with menu choice; a readout just above each ac tive control shows its present function. These controls are used as variable analog controls to set values such as phase, amplitude, and intensity. The left control is also used to select categories within the

Figure 3-1 shows the bezel controls and buttons.

CONFIG menu.

Moving Between Menus

Selecting a second menu removes the present menu display, but the functions typically remain active (with the menu LED remaining lighted to show this state). To reinstate a menu display, push that menu button again.

CRT, PRESET, and CONFIG menus will be exited completely

when another menu button is pushed.

1760 Series Component Waveform/Vector Monitor User Manual 3-7

Using the Menus

Clear Menu

Push CLEAR MENU to clear part of the menu di splay, but leave essential readout elements such as control assignments and measurement readouts. (The menu LED remains lighted to show this state.) Push the menu button to bring back the full display.

CRT, PRESET, and CONFIG menus will be exited completely

when

CLEAR MENU is pushed.

Exiting a Menu Function

To exit a menu function while its display is present, push that menu button. (The menu button is functioning as an on-off toggle switch). If the menu display is not present, but the menu function is still in effect (LED is lighted), push the menu button to bring back the full display, then push it again to exit the menu.

DISPLAY READOUT TRACE

TEST

ON OFF

FOCUS SCALE I NTENSITY

VERTPOS

Left Center Right

Bezel Controls

HORIZPOS

CLEAR

Figure 3-1. The CRT menu, showing bezel controls and bezel buttons.

Bezel Buttons

3-8

1760 Series Component Waveform/Vector Monitor User Manual

Filter Menu

Using the Menus

The FILTER menu is available for WAVEFORM mode only. Note that the instrument must be in cess the R--Y displays. When the

WAVEFORM mode, an on-screen menu allows the following

WAVEFORM mode to ac-

FILTER button is pushed in

selections. The bezel buttons are self-cancelling.

FLAT — provides flat (normal) response.

LUM — provides a low-pass response to display the

luminance portion of the composite video signal.

CHROM — provides bandpass response centered on

the chrominance subcarrier frequency, and displays frequencies around the subcarrier frequency.

DIFF — is a differentiated step filter (linearity steps

are translated into impulses for amplitude comparison).

R-- Y — selects demodulated chrominance-versus-

time display. The chrominance is demodulated on

R--Y (V) axis when burst is lined up on the

the normal axis. The

VECTOR PHASE control can adjust

the demodulator phase to any axis.

SCHR--Y(OptionSCOnly)—demodulates the SCH

sync-locked oscillator. This display is useful for viewing SCH variations versus time.

F+L—displays the video signal both flat and

luminance filtered. The display is in parade or overlay mode, as selected through t he on-scre en menu. When

PARADE is selected, the flat display is

on the left.

F+L+C—displays the video signal flat, lumi-

nance filtered, and chrominance filtered. The signal is displayed in parade or overlay mode, as selected through the on-screen menu. When

PARADE is

selected, the flat display is on the left, with the chrominance-filtered display on the right.

1760 Series Component Waveform/Vector Monitor User Manual

3-9

Using the Menus

Cursor Menu

Press the CURSOR menu button to enter the cursor menu. Cursors are available in composite and component operation for

Vector Cursor Control

In VECTOR display mode, a bezel button is used to select polar cursors pears as crosshairs, as shown in Figure 3-2. The left bezel control is used to adjust cursor amplitude, and the center control adjusts cursor phase. The right bezel control adjusts the phase of the vector signal.

When Vector markers are selected, additional readouts appear, allowing the user to select the quantity of markers that will be present (1 through 8), and which of the se markers is currently controlled by the bezel control s. The left bezel control adjusts the amplitude of the selected marker, and the center bezel control adjusts its phase. The right bezel control adjusts the phase of the vector signal.

VECTOR, WAVEFORM, and VECT+WFM DISPLAY modes.

(POLAR) or markers (MARK). The polar cursor ap-

AMPL

75.0IRE

AMPLITUDE P HASE VECTOR PHASE

VERTPOS

Left Center Right

Figure 3-2. The VECTOR CURSOR menu.

PHASE

145.0°

VEC CURSO R

POLAR MARK

HORIZPOS

CLEAR

3-10

1760 Series Component Waveform/Vector Monitor User Manual

Using the Menus

Waveform Cursor Control

In WAVEFORM display mode, the bezel buttons are used to select timing cursors voltage and timing form cursor menu is shown in Figure 3-3.

(TIME), voltage cursors (VOLT), both

(V+T), or markers (MARK). The Wave-

H When voltage cursors are selected (

VOLT), the left

bezel control is used to adjust the vertical position of the first voltage cursor, and the center bezel control adjusts the second voltage cursor. The right bezel control is used to move the vertical position of both cursors vertically, in tandem. The readout shows the voltage difference (positive or negative) between the two cursor positions, up to four significant digits.

H When timing cursors are selected

(TIME),theleft

bezel control is used to adjust the horizontal position of the first timing cursor, and the center control adjusts the horizontal position of the second timing cursor. The right bezel control moves both cursors

horizontally, in tandem. The readout

∆T shows the

time difference (positive or negative) between the two cursor positions, up to four significant digits.

H When markers are selected

(MARK), the left bezel

control is used to adjust the horizontal position of the first marker line, the center bezel control adjusts the second marker, and right bezel control adjusts the third marker.

∆V

H When both voltage and timing cursors are selected

V+T), a control assignment appears on the screen.

(

The bezel button is used to assign the control to voltage or timing cursors. The bezel controls work the same as for the individual timing and voltage cursor modes. Both voltage and timing readouts are present.

1760 Series Component Waveform/Vector Monitor User Manual

3-11

Using the Menus

∆ V

700 mV

VOLT1 VOLT2 TRACK

WFM CURSO R

VOLT TIME MARK

V+T

VERTPOS

Left Center Right

Figure 3-3. The WAVEFORM CURSOR menu.

Voltage Cursor 1

Voltage Cursor 2

Timing Cursor 1

∆ V

700 mV

VOLT1 VOLT2 TRACK

HORIZPOS

CLEAR

WFM CURSO R

VOLT TIME MARK

V+T

VEC CURSO R

POLAR MARK

CONTRO L

VOLT TIME

Timing Cursor 2

VERTPOS

HORIZPOS

Figure 3-4. The VECTOR+WFM CURSOR menu with V+T selected.

3-12

1760 Series Component Waveform/Vector Monitor User Manual

CLEAR

Vector + Waveform (Multiple)

If MULTIPLE is pressed and bot h VECTOR and WAVEFORM dis- plays are selected, menus for all cursor types will be displayed. See Figure 3-4. All cursor functions are available in this mode (the top three bezel buttons are self-cancelling). Bezel control assignments are the same as for the individual modes.

Using the Cursors

With Vector Display

Using the Menus

To use vector cursors, operate in VECTOR or VECTOR+WAVE-

FORM

two vector cursor displays:

PHASE

nal

mode and press the CURSOR MENU button. There are

POLAR and MARK. (The VECTOR

bezel control continues to adjust the phase of the sig-

Polar Cursors can be used to measure the amplitude and phase of the chrominance signal. When position the cursor (cross hairs) with the

PHASE bezel controls, and view the amplitude and phase

POLAR is selected, AMPLITUDE and

readouts at the top of the screen. See Figure 3-2. When a component signal is displayed (A 1-2-3 or B 1-2-3), it will be encoded so that the readout phase and amplitude matches that of a composite signal. This feature allows the operator to set component equipment to a specific color phase if the composite phase value is known.

The cursor zero amplitude point is the center point of the graticule. Using the amplitude control to move the cursor out from the center increases the amplitude. Adjusting the cursor phase will rotate the cursor around the center point, with the zero phase point being the B--Y (U) axis. The amplitude readout can be set for m

CONFIG menu, described on page 3-20.

V or IRE values through the

1760 Series Component Waveform/Vector Monitor User Manual

3-13

Using the Menus

When the gain or position of the signal is changed, the polar cursors maintain their relationship with the signal.

When

CLEAR MENU is pressed, the POLAR / MARK choice on

the right side of the screen will be removed, but the bezel controls will still be active and cursor measurements can still be made. When another menu is selected, the bezel controls may be reassigned to the new menu, but will return to cursor control when the new menu is deselected.

Markers can be used to highlight graticule points. They function the same for composite or component signals. When

MARK is selected, two additional menu readouts ap-

pear. These allow selection of from one to eight markers, and assign the

AMPLITUDE and PHASE bezel controls to one

of these markers. Markers are designed to be used for reference points; there is no quantitative readout. Markers are positioned with respect to the graticule and are not moved or resized with the signal.

When

CLEAR MENU is pressed, all of the marker readout ex-

cept the boxes will be removed. The readout will be restored when

CURSOR menu is selected again. When CURSOR menu

is exited and re-entered, the selected cursor quantity and position will be retained. One use of markers is to position them on the vector target boxes. Adjust the signal source until the color bar signal appears in the marker boxes.

3-14

If it becomes necessary to compensate for minor shifting of markers due to drift or external magnetic fields (particularly if the instrument is moved after the markers are set), enter

CRT menu and select READOUT. Use the bezel controls to

the adjust vertical position

(HPOS) until the center of the displayed test pattern is at the

(VPOS) and horizontal position

center of the graticule.

1760 Series Component Waveform/Vector Monitor User Manual

Using the Menus

With Waveform Display

Voltage Cursors can be used to make accurate signal amplitude measurements. With control to position the signal to be measured, and the center bezel control to position the

VOLT2 cursor at the lower excursion. The on-screen

readout gives the voltage difference between the two levels.

VOLT selected, use the left bezel

VOLT1 cursor at the upper excursion of

When relationship with the signal. For example, if the were set to the signal sync tip in sync tip in

GAIN is changed, the voltage cursors maintain their

VOLT2 cursor

X1 GAIN,itwouldalsobeat

X5 gain, X10 gain, or with VAR gain on.

Timing Cursors can be used to make accurate time measurements. When the left excursion of the signal to be measured, and the

TIME is selected, position the TIME1 cursor at

TIME2

cursor on the right. The on-screen readout gi ves the time difference between the two points.

When tionship with the signal. For example, if the

MAG is selected, the timing cursors maintain their rela-

VOLT1 cursor

were set to the rising edge of sync, it would also be set there

MAG selected.

with

Markers. When

MARK is selected, use the bezel controls to

vertically position the markers where desired with respect to the graticule markings. These markers are designed to be used for reference points; there is no amplitude readout. The markers are not affected by set to the

100 IRE in X1 GAIN, it would still be set to 100 IRE with

MAG on.

GAIN changes; if a marker were

1760 Series Component Waveform/Vector Monitor User Manual

3-15

Using the Menus

Line Select Menu

Pushing the LIN SEL menu button enables the line select mode and provides a menu display. T he center bezel cont rol is assigned to select the line number. The following choices can be made using the bezel buttons that correspond to the on-screen labels:

1760--Series

H NEXT FIELD — (Appears only when 1of 2 FIELD is

1H or 15H (one line or 15 lines)

FIELD — ALL or 1of 2

selected.) Push the corresponding bezel button to sequence through the fields designated by the

FIELD

selection. A box flashes momentarily around the on-screen label to verify that the sele ction has been made.

1760--Series Option

FIELD — ALL or 1of2 or 1of 4 or 1of8

H 1H or 15H (one line or 15 lines)

NEXT FIELD — (Appears only when 1of 2, 1of4, or

1of 8 FIELD is selected.) Push the corresponding

bezel button to sequence through the fields designatedbythe

ALT2FIELD— (Appears only when 1of 4 FIELD is

FIELD selection.

selected.) Push the corresponding bezel button to toggle between the current field and the second next field; for example,

FIELD1 and FIELD3.

H ALT4FIELD — (Appears only when 1of 8 FIELD is

selected.) Push the corresponding bezel button to toggle between the current field and the fourth next field; for example,

FIELD1 and FIELD5.

3-16

1760 Series Component Waveform/Vector Monitor User Manual

Using the Menus

When bezel buttons corresponding to NEXT FIELD,

ALT2FIELD

, or ALT4FIELD are pushed, a box

flashes momentarily around the on-screen label to verify that the selection has been made.

Readout

The line select readout (in the upper left of the CRT) consists of field followed by line number. When

15H is selected, the

readout also displays the range of line numbers. For example, select

FIELD 1 and 15H, then rotate the LINE SEL control

to 34. The readout is field 1, lines 34to 48:

F1 34 F1 48

Line Select F

unctions

All menus are functional during line select operation. The line select menu display disappears when another menu is selected, but the selected line and field are displayed until the line select menu is exited. (The field and line readout remains in the upper left of the screen, and the line select LED remains lighted to indicate this state.)

Lineselectcanalsobeusedwith

FORM, VECTOR

,andSCH. Selected displays appear on the

screen in the following order:

MULTIPLE displays of WAVE-

WAVEFORM, VECTOR, SCH.

The readout indicates the line number of the highest priority display. For example: with waveform and vector displays both selected, a readout of F1:20 would indicate that field 1, line 20 is displayed in waveform mode, and field 1, line 21 is displayed in vector mode.

In a waveform display, the selected line is displayed first in a two-line sweep, and brightened in a field sweep.

When line select is enabled, the rear-panel highlights the selected line on the picture monitor display.

1760 Series Component Waveform/Vector Monitor User Manual

PIX MON output

3-17

Using the Menus

Preset Menu

The 1760--Series has 10 presets capable of storing front-panel setups. Nine of the presets are user-programmable and one is factory pre-programmed.

Factory-programmed setup:

INPUT, DC REST ON,

10 µs SWEEP, REF internal, and menus

WAVEFORM DISPLAY, CH-A

off.

Push the

PRESET menu button to access the on-screen menu,

illustrated in Figure 3-5. Turn the left bezel control to select

PRESET location to be acted on (presets 1--9 are available

the through the menu). Next, use the bezel button corresponding to the desired action

When a bezel button is pushed, a box flashes momen-

ER).

(RECALL, STORE, RENAME, OR RECOV-

tarily around the on-screen label t o verify tha t the sel ection has been made.

RECALL

PRESET 1 PRESET 2 PRESET 3 PRESET 4 PRESET 5 PRESET 6 PRESET 7 PRESET 8 PRESET 9 FACTORY

VERTPOS

Left Center Right

Figure 3-5. The PRESET menu display.

3-18

1760 Series Component Waveform/Vector Monitor User Manual

STORE

RENAME

RECOVER

HORIZPOS

Bezel Buttons

CLEAR

Using the Menus

Recall

Use the left bezel control to select (outline) a preset for recall. Push

RECALL to recall the stored instrument configura-

tion.

Recover

RECOVER to restore the front-panel setup that was in

Push effect before

RECALL was pushed.

Store

To begin storing a setup, push

STORE. Make sure the front-

panel controls are set as desired, and use the left be zel control to select the storage location (shown outlined).

STORE IT to store t he c urrent front-panel settings at the

Push outlined sponding to cel and exit the

PRESET location. (Push the bezel button corre-

RETURN if storing is not desired. This will can-

STORE operation.)

Rename

Selecting ing the center and right bezel controls to

. Turn the center control to select the letter that will be

TER

RENAME will provide an on-screen display, assign-

LOCATION and LET -

changed (move the box to the desired location within the preset name). Turn the right control until the selected letter changes to the desired new letter.

RETURN if renaming is not desired. All changes to the

Push name will be cancelled.

When the change has been made satisfactorily, select

CEPT

1760 Series Component Waveform/Vector Monitor User Manual

to store the new name.

AC-

3-19

Using the Menus

Configure Menu

Push the CONFIG button to display the configure menu, shown in Figure 3-6. Turn the left bezel control to select

INPUT, VECTOR, FORMAT, STANDARD, OFFSET, CALIBRATE, REMOTE

tion). Following are descriptions of each selection.

INPUT

H COUPLING — Selects AC or DC coupling for

, or REFERENCE (a box appears around the selec-

rear-panel inputs.

DC RESTORER —Selects the clamp speed. Slow

will clamp while displaying any hum.

CLAMP—Selects the point of the video signal that is

clamped to 0. Can be set for

ST (sync tip) or BP

(back porch).

COUPLING

AC DC

DCRESTORER

SLOW FAST

CLAMP

INPUT VECTOR FORMAT STANDARD OFFSET CALIBRATE REMOTE REFERENCE

VERTPOS

ST BP

A123

COMPOSITE COMPONENT

B123

COMPOSITE COMPONENT

HORIZPOS

Left Center Right

Figure 3-6. The CONFIGURE menu display with INPUT selected.

Bezel Buttons

CLEAR

3-20

1760 Series Component Waveform/Vector Monitor User Manual

Using the Menus

H A123 — and B123 — When COMPOSITE is se-

lected, the instrument’s internal reference is the input channel currently selected for display. For

COMPONENT, the internal reference is A1 when A123

is selected, and B1 when B123 is selected (sync is present only on the first channel).

VECTOR

H BARS — The instrument can be configured to accept

75% or 100% amplitude color bar signals. Dual- Standard instruments allow color bar signal amplitudes to be set for NTSC and for PAL operat ion.

SETUP — (NTSC operation only) Configures the

instrument to accept signals with or without setup.

PAL — (PAL operation only) When +V is chosen,

the phase reference of the --V lines is inverted, then shown as an overlay on the +V li nes to provide a comparison display. +V shows +V and --V on alternate lines.

TEST — Used by service personnel; refer to the

service manual.

FORMAT

H CONFIG—FORMAT is used to to select the configura-

tion of signals used for interconnection of equipment. Available signal formats are:

, BETA, and MII. When viewed as a waveform

EBU

parade display, GBR signals may be displayed in either GBR sequence or RGB sequence, as selected through the

GBR PARADE GBR/RGB menu.

Table 3-1 shows v alid format selec tions.

CONFIG—FORMAT is also used to select which

display the front-panel

(LIGHTNING or DIAMOND) is present when

LIGHTNING button is pressed.

GBR, SMPTE/

1760 Series Component Waveform/Vector Monitor User Manual

3-21

Using the Menus

Ta b l e 3 - 1 . Valid FORMAT selections.

FORMAT

525/60

GBR

SMPTE / EBU

BETA

MII

625/50

GBR

SMPTE / EBU

BETA

[3]

MII

[1]

75% or 100% Bars selected through CONFIG—VECTOR menu.

[2]

Setup Yes or No is selected through the CONFIG—VECTOR menu. The setup selection is only relevant with 525/60 BETA, and is ignored in all other formats.

[3]

MII is identical to SMPTE/EBU in 625/50.

BARS

75% 100%

••

75% 100%

••

[1]

SETUP

•

[2]

STANDARD

H CONFIG—STANDARD allows the user to set the cursor

unit of measure to MV, IRE, or AUTO. When AUTO is selected, cursor units are automatically changed to IRE when operating in the NTSC standard, and MV when operating in the PAL standard.

H For dual-standard instruments, a menu selection of

NTSC, PAL, or AUTO standard is also available.

When changes automatically to match the standard of the displayed input signal. A circled “A” precedes NTSC or PAL on the readout.

AUTO is selected, the operating standard is

3-22

1760 Series Component Waveform/Vector Monitor User Manual

Using the Menus

OFFSET

H The VERTICAL POSITION control normally positions

all channels together. When bezel controls can be used to offset input channels 2

(A or B) and 3 (A or B) with respect to channel 1 (A or

B).

OFFSET is enabled, the

H While the offsets are enabled, the

control will still position all channels together,

TION

VERTICAL POSI-

with the offset amount remaining constant. When

OFFSET is turned off, the input channels will be

re-aligned. The selected offset amount will be recalled the next time

H When

A2A3 OFFSET is on, the center and right bezel

controls are assigned to

OFFSET is enabled.

CH A2 and CH A3 offsets.

On-screen labels appear just above each control. Turning these controls will offset the

signals with respect to CH A1. When B2B3 offset

is on, the same two controls are assigned to

CH A2 and CH

CH B2

and CH B3.

H When both A2A3 and B2B3 offsets are on, the user

assigns the controls to either

CONTROL selection only appears when both A and B OFFSETS

are selected.

A or B offsets. The

H An offset will remain in effect until the user turns

the offset affect the

OFF. (Exiting the CONFIG menu will not OFFSET ON / OFF setting.)

1760 Series Component Waveform/Vector Monitor User Manual

3-23

Using the Menus

CALIBRATE

These choices are offered when CALIBRATE is selected:

CAL SIG — Turns the 1 V internal calibrator signal

on/off.

GAIN CAL — Turns on the gain calibration adjust-

ment on/off.

Additional choices appear when

CAL SIG or GAIN CAL is

turned on:

CAL SIG

H In waveform mode, the user can set the calibrator

frequency to

3.58 MHz for NTSC/4.43 MHz for PAL).

100 KHZ or to FSC OSC (FSC OSC =

Dual-stan-

dard monitors also have the option of choosing

NTSC FSC (3.58 MHz) or PAL FSC (4.43 MHz).

H In vector mode, the user can set the calibrator

frequency, for dual-standard instruments only, to

NTSC FSC (3.58 MHz) or PAL FSC (4.43 MHz).

H In both waveform and vector modes, selecting NTSC

or PAL FSC temporarily switches the instrument

FSC

to the appropriate video standard. The standard is restored when changing the selection or when exiting the

CALIBRATE menu.

3-24

GAIN CAL

H In waveform mode, the left bezel control adjusts

instrument vertical gain control adjusts instrument horizontal gain (

(V CAL) and the center bezel

H CAL).

Once gain has been adjusted, two reset options appear on screen. If either of these resets is selected, a box flashes momentarily around the onscreen label to acknowledge t hat reset has occurred.

RESET VCAL cancels any vertical gain adjustments

1760 Series Component Waveform/Vector Monitor User Manual

Using the Menus

and RESET VCAL cancels any vertical gain adjustments; the instrument returns to the factory calibrated gain settings.

H In vector mode, the center bezel control adjusts the

vector signal gain. Once gain has been adjusted,

RESET VCAL appears on screen. Selecting RESET VCAL

cancels any vector gain adjustments and returns the instrument to the factory calibrated gain settings.

REMOTE

H The currently operating software version is dis-

played in the lower right corner of the screen.

H Three menu choices are avail able.

REM INPUT

configures rear-panel REMOTE connector pin 3 to accept External Horizontal or Staircase input.

STAIRCASE configures the sta ircase input for 3-step (RGB) or 4-step (YRGB) signal. BAUD configure s the

data transmission rate for the rear-panel RS232 connector for 1200, 4800, or 9600 baud.

H The remote input is enabled by a TTL low or switch

to ground. See page 3-29.

REFERENCE (1765 Only)

H NTSC external reference and PAL external refer-

ence can be set to or B3.

H When The front-panel

lights) the instrument uses the rear-panel input. Dual-standard monitors can be configured for two external references; one for NTSC and one for PAL. Any of the input channels can be designated as a second external reference by selecting that input channel as the through this menu.

EXT,A,A1,A2,A3,B,B1,B2,

REF EXT is selected (LED

EXT REF

NTSC EXT REF or PA L EXT REF

1760 Series Component Waveform/Vector Monitor User Manual

3-25

Using the Menus

Gain Menu

H If NTSC and PAL external references are configured

the same, the monitor automatically operates in the same television standard as the

EXT REF input.

When NTSC and PAL external references are configured differently, the monitor’s operating standard is determined by the standard of the displayed video instead of the

EXT REF input. Once the

operating standard is determined, the monitor immediately switches to the appropriate i nput for reference timing.

H Any one of three calibrated gain ratios can be selected:

X1, X5, or X10. Variable gain is also available, indepen-

dent of the other gain settings. When variable gain is on, the left bezel control adjusts signal gain.

H In Lightning mode, the three calibrated gain ratios are

available, as well as two independent variable gain settings. portion of the signal and

VAR V GAIN adjusts the gain of the vertical

VARHGAIN adjusts the gain of

the horizontal portion.

H Audio or Time Code gain is set when

CODE

display is selected. Gain choices are 0 dBu, 4

AUDIO or TIME

dBu, 8 dBu, or 12 dBu.

H When variable gain is turned off, the instrument returns

to the calibrated gain setting. Operator adjustments made with variable gain will be restored when variable gain is selected again.

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1760 Series Component Waveform/Vector Monitor User Manual

CRT Menu

Using the Menus

The following choices are available:

DISPLAY is used for signal and etched graticule adjust-

ments. When adjusts the signal focus control adjusts the etched graticule illumination

DISPLAY is selected, the left bezel control

(FOCUS), the center bezel

(SCALE)

and the right bezel control adjusts the signal intensity

(INTENSITY).

H READOUT refers to electronic graticules, markers, menu

and measurement readouts. When

READOUT is selected,

a test pattern containing a vertical line and a horizontal line is displayed. Use the left bezel control the center bezel control

(HPOS) until the lines cross at

(VPOS) and

the center of the etched graticule. This will compensate for minor shifting of markers due to drift or external magnetic fields (particularly if the instrument is moved after the markers are set).

The right bezel control adjusts readout intensity

. Readout intensity will not go below the calibrated

SITY)

(INTEN-

minimum value when menus are displayed.

TRACE adjusts trace rotation

Exiting the menu will return the instrument to normal operation, with the new settings in effect.

1760 Series Component Waveform/Vector Monitor User Manual

3-27

Using the Menus

3-28

1760 Series Component Waveform/Vector Monitor User Manual

Remote Operation

The 25-pin rear-panel REMOTE connector is a subminiature

D-type connector. It accepts the input for RGB/YRGB stair-

case, external horizontal, remote sync external blanking, time code, and Left and Right audio. TTL signal or ground c losure to designated pins will enable Staircase, External Horizontal, or Remote Sync displays.

When Remote Sync is enabled, the on-screen

TIME/DIV. read-

out is not present. When Remote Sync or External Horizontal is enabled with timing cursors, “

UNCAL” is displayed in

place of a quantitative readout.

REMOTE connector is configured for Staircase (RGB or

The YRGB) or External Horizontal input through the

CONFIGURE

menu, shown on page 3-20.

The user can store a nd recall up to eight front-panel setups through the remote. Remote connector pin assignments and an operational description begin on page B-1.

Using Presets through the Remote

The 1760--Series has 10 presets capable of storing front-panel setups. Presets one through eight are accessible through the rear-panel on one of the at that preset location.

REMOTE connector. A TTL low or ground closure

PRESET pins selects the front-panel setup stored

When

STORE (pin 25) is grounded along with one of the pre-

set pins, the current front-panel setup is stored at the selected preset location.

1760 Series Component Waveform/Vector Monitor User Manual 3-29

Remote Operation

3-30

1760 Series Component Waveform/Vector Monitor User Manual

Making

Measurements

Tektronix 1760 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

WARRANTY

General Safety Summary

To Avoid Fire or Personal Injury

Safety Terms and Symbols

TABLE OF CONTENTS

LIST OF FIGURES

User Manual

Preface

Service Manual

Contacting Tektronix

Product Description

Applications

Features

Description of Features

More Information

Option SC

Options

Power Cord Options

CRT Options

Standard Accessories

Accessories

Optional Accessories

Field Upgrade Kits

Installation

Electrical Installation

Mechanical Installation

Instrument Configuration

Front-Panel Controls

At A Glance

Rear-Panel Connectors

Procedure

Functional Overview

Display Modes C omposite Component

Displaying a Signal

Using the Menus

General Menu Information

Filter Menu

Cursor Menu

Using the Cursors

Line Select Menu

Preset Menu

Configure Menu

Gain Menu

CRT Menu

Remote Operation