Tektronix 1760 User Manual
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Tektronix 1760 User Manual

1760 series component waveform / vector monitor
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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

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Summary of Contents for Tektronix 1760

  • Page 1: User Manual

    User Manual 1760 Series Component Waveform/ Vector Monitor 070-8473-05 This document supports firmware version 2.2 and above. www.tektronix.com...
  • Page 2 Copyright © Tektronix, Inc. All rights reserved. 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...

  • Page 3: Warranty

    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.

  • Page 5: General Safety Summary

    Observe All Terminal Ratings To avoid fire or shock hazard, observe all ratings and mark- ings on the product. Consult the product manual for further ratings information before making connections to the prod- uct. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 6: Safety Terms And Symbols

    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. 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 7 Symbols on the Product. These symbols may appear on the product: CAUTION WARNING Refer to High Volt- Manual Not suitable for connection to the public tele- communica- tions network 1760 Series Component Waveform/Vector Monitor User Manual General Safety Summary Double Protective Insu- Ground (Earth) lated Terminal...
  • Page 8 General Safety Summary 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 9: Table Of Contents

    Rackmounting Instrument Configuration 1760 Series Component Waveform/Vector Monitor User Manual .............
  • Page 10 Clear Menu Exiting a Menu Function 1760 Series Component Waveform/Vector Monitor User Manual ......... .
  • Page 11 Making Vector Measurements 1760 Series Component Waveform/Vector Monitor User Manual .......
  • Page 12 Software Version viii 1760 Series Component Waveform/Vector Monitor User Manual ........

  • Page 13: List Of Figures

    The CONFIGURE menu display with INPUT selected 1760 Series Component Waveform/Vector Monitor User Manual ........
  • Page 14 Figure 4-17 Bowtie display showing a sharp null Figure B-1 Rear panel REMOTE connector Figure B-2 Using the 1760- - Series as a 1740 / 1750- - Series replacement Figure B-3 Rear panel RS232 connector Figure C-1 Graticule light replacement 1760 Series Component Waveform/Vector Monitor User Manual .
  • Page 15 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...

  • Page 16: Service Manual

    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 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 17 Preface 1761 Component Waveform / Vector Monitor. xiii 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 18: Contacting Tektronix

    This phone number is toll free in North America. After office hours, please leave a voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 19: Introduction

    Introduction...

  • Page 21: Product Description

    The following products are available: 1760 1761 1765 The 1760- - Series monitors can also be ordered with an SCH- phase 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”...

  • Page 22: Description Of Features

    Description of Features Menu A notable feature of these monitors is the menu-assisted op- eration. 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 PARADE...

  • Page 23: More Information

    Accessories section, which follows this product descrip- tion. Instrument options are listed on page 1-5. A complete listing of instrument specifications begins on Appendix page A-1. 1760 Series Component Waveform/Vector Monitor User Manual Product Description VOLTAGE/TIMING CUR- LINE SELECT , or...
  • Page 24 Product Description 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 25: Options

    Field upgrade kits listed in this section can also be used with these monitors. Option SC The 1760- - Series can be ordered with Option SC. This pro- vides a vector display of the subcarrier-to-horizontal-sync phase relationship. It includes the same SCH capabilities as the 1750A- - Series instruments.

  • Page 26: Crt Options

    (Power Cord) CRT Options The standard instrument is shipped with a P31 (green) phos- phor CRT installed. If Option 74 is ordered, the instrument is shipped with a P4 (white) phosphor CRT installed. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 27: Accessories

    Standard Accessories These accessories are included with the product: Manual, user: 1760- - Series (070- - 8473- - XX) Cable assembly, power: United States and Japan only (161- - 0216- - XX) Cable assembly, power: all other countries (161- - 0066- - XX)

  • Page 28: Field Upgrade Kits

    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.

  • Page 29: Installation

    Replacement Graticule Light Bulbs (4) Replacement Air Filters for Fan (4) Packaging for Shipment If you ship an instrument to a Tektronix Service Center, fol- low these packaging instructions: 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.

  • Page 30: Electrical Installation

    (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 the power cord is essential for safe operation. 1-10 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 31: Mains Frequency And Voltage Range

    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 tor.

  • Page 32: Mechanical Installation

    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 rack- mount 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.

  • Page 33: Rackmounting

    Installation Rackmounting The 1760- - Series monitors are half-rack width and three rack units high. They require approximately three inches of rear clearance for power cord and cable connections, and 20 in- ches in front of a rack for installation and removal of the instrument.
  • Page 34 Installation 1-14 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 35: Instrument Configuration

    Focus, scale illumination, signal intensity, readout intensity, and trace rotation are set through the menu. Several instrument operating parameters can be set through CONFIG menu. Instructions for using these menus begin on page 3-20. 1-15 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 36 Instrument Configuration 1-16 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 37: Getting Started

    Getting Started...

  • Page 39: At A Glance

    1-8; serious injury could result. Instrument Reset Certain conditions may cause the 1760- - Series instrument front-panel controls to become locked. Reset as follows: Turn off instrument power. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 40: Figure 2-1 Multi-Use Bezel Controls And Buttons

    Hold both buttons in until the instrument returns to its normal operating state. 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...

  • Page 41: Figure 2-2 1760 Front Panel

    At A Glance Figure 2-2. 1760 Front Panel. 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 42 (left half of graticule) shows CH-1 minus CH-2 and line two shows CH-1 minus CH-3. PICTURE 1760 Series Component Waveform/Vector Monitor User Manual allows the signal display to be moved CONFIGURE allows the signal display to be moved provides voltage vs.
  • Page 43 See INPUT Selecting a front-panel input causes the signal that is input to the corresponding rear-panel connector to be displayed on screen. 1760 Series Component Waveform/Vector Monitor User Manual provides monitoring of longitudinal allows simultaneous selection of VECTOR DISPLAY modes.
  • Page 44 FILTER waveform signal. CURSOR vector cursors and markers. LIN SEL of lines for display. 1760 Series Component Waveform/Vector Monitor User Manual PARADE OVERLAY selected, ) toggles between A123 / B123 and is cancelled when another input button is PARADE...
  • Page 45 1760 Series Component Waveform/Vector Monitor User Manual allows the user to store and recall up to 9 allows the user to configure several operat-...

  • Page 46: Rear-Panel Connectors

    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 INPUTS A, A1, A2, A3, B, B1, B2 loop-through video inputs, compensated for 75 Ω. The front-panel which channel(s) are displayed.

  • Page 47: Fan Filter

    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.

  • Page 48: Figure 2-3 1760- - Series Rear Panel

    At A Glance Figure 2-3. 1760---Series Rear Panel. 2-10 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 49: Operator's Checkout Procedure

    If performing this procedure reveals improper instrument operation, first check the operation of the associated equip- ment. 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 proce- dure: 1.

  • Page 50: Initial Equipment Connections

    Operator’s Checkout Procedure Initial Equipment Connections Connect the 1760- - Series to an appropriate AC power source. Connect the generator NTSC output (COMPOSITE for TSG131) to the CH-A input. Connect the CH-A loop- through to the EXT REF input and connect a 75Ω...

  • Page 51: Procedure

    Figure 2-5. Press the B123 (a display of the Select any other input, which cancels the Now press the selection is restored. 1760 Series Component Waveform/Vector Monitor User Manual Operator’s Checkout Procedure FACTORY menu and select RECALL . The front-panel controls menu is automatically exited.

  • Page 52: Figure 2-5 Component Waveform Display (A123)

    PARADE/OVERLAY Press the CH-A2 signals are superimposed. Exit mode. Note that the inputs selected before entering parade or overlay mode (B123) are restored. 2-14 1760 Series Component Waveform/Vector Monitor User Manual PARADE button. The CH-A1, CH-A2, CH-A3 PARADE OVERLAY A123/B123 CH-A3/CH-B3 selected).

  • Page 53: Figure 2-6 Calibrator Display

    Operator’s Checkout Procedure 4. Check Gain The 1760- - Series internal calibrator can be used to check CH-A instrument calibration. Select input and set the genera- tor for NTSC Color Bars output (COMPOSITE for PAL). CALIBRATE Enter the configuration menu and select .
  • Page 54 3-6 for a list of sweep rates.) 7. Voltage and Timing Cursors The 1760- - Series voltage, timing, and vector cursors can be used to measure any portion of the displayed signal. CURSOR...
  • Page 55 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 Operator’s Checkout Procedure (TIME) . The timing cursors appear as Select voltage and timing cursors...

  • Page 56: Figure 2-7 Two-Line Lum Filter Display Of Color Bar Signal

    Operator’s Checkout Procedure 8. Filter Selection The 1760- - Series offers several filter selections for the waveform display. Ensure that the instrument is operating in waveform mode. FILTER Enter the preset). Select display of the luminance portion of the signal. See Figure 2-7.

  • Page 57: Figure 2-8. Two-Line Chrom Filter Display Of Color Bar Signal

    (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 Operator’s Checkout Procedure FLAT CHROM...

  • Page 58: Figure 2-9. Two-Line Diff Filter Display Of 5-Step Staircase Signal

    Operator’s Checkout Procedure Figure 2-9. Two-Line DIFF filter display of 5-step staircase signal. Figure 2-10. Two-Line R ---Y display of color bar signal. 2-20 1760 Series Component Waveform/Vector Monitor User Manual 10 S/DIV FLAT CHROM DIFF R- - Y SCH R- - Y...

  • Page 59: Figure 2-11 Two-Field Sch R- - Y Display (Ntsc), Showing Proper Sch Phase

    Figure 2-11. Two-Field SCH R ---Y display (NTSC), showing proper SCH phase. Figure 2-12. Two-Field SCH R ---Y display (PAL), showing proper SCH phase. 1760 Series Component Waveform/Vector Monitor User Manual Operator’s Checkout Procedure FLAT CHROM DIFF R- - Y...

  • Page 60: Figure 2-13 Line Select Display With 15H Selected, In 2 Field Sweep

    ALL131 - - - - 145 Figure 2-13. Line Select display with 15H selected, in 2 FIELD sweep. 2-22 1760 Series Component Waveform/Vector Monitor User Manual WAVEFORM, VECTOR, SCH LINE SELECT sweep and note the intensified line in each and note that 15 lines are now intensified ALL 131- - - - 145 .

  • Page 61: Figure 2-14 Vectorscope Color Bar Display

    See Figure 2-16. Figure 2-14. Vectorscope color bar display. 1760 Series Component Waveform/Vector Monitor User Manual Operator’s Checkout Procedure display mode. Adjust the right bezel control display mode. A picture monitor display of...

  • Page 62: Figure 2-15 Picture Mode Display Of Color Bar Signal

    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...

  • Page 63: Figure 2-17. Ntsc Sch Display With Internal Reference Selected

    For PAL operation, the display. A sample PAL display is shown in Figure 2-18. Figure 2-17. NTSC SCH display with internal reference selected. 1760 Series Component Waveform/Vector Monitor User Manual Operator’s Checkout Procedure is set to internal, then display mode. This provides a dual-dot display,...

  • Page 64: Figure 2-18 Pal Sch Display

    Under 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. 2-26 1760 Series Component Waveform/Vector Monitor User Manual VECTOR PHASE CONFIG MII). Under . Leave the configuration menu selected.

  • Page 65: Figure 2-19 Lightning Display In Mii Format

    Figure 2-19. Lightning Display in MII Format. VECTOR FORMAT STANDARD OFFSET CALIBRATE REMOTE REFERENCE Figure 2-20. Diamond display, showing signal within gamut limit. 1760 Series Component Waveform/Vector Monitor User Manual Operator’s Checkout Procedure INPUT INPUT DISPLAY LIGHTNING DIAMOND 525/60 SMPTE/EBU...

  • Page 66: Figure 2-21 Bowtie Display

    The display should appear similar to Figure 2-21. Information on making measurements with the Bowtie display appears on page 4-21. Figure 2-21. Bowtie display. This concludes the Operator’s Checkout Procedure. 2-28 1760 Series Component Waveform/Vector Monitor User Manual BOWTIE display mode on the 1760- - Se-...

  • Page 67: Operation Basics

    Operation Basics...

  • Page 69: Functional Overview

    A bezel control is assigned to adjust VECTOR PHASE. With a component input (A123 or B123), CH-3 (typically R- - Y or P 1760 Series Component Waveform/Vector Monitor User Manual Composite Component • • •...

  • Page 70: Sch (Option Sc Only)

    X/Y Lissajous display. The operator can verify that the pro- gram 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. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 71: Lightning

    For signals outside the diamond, the graticule is labeled with G, B, and R to determine the color problem area. A123 (or B123) must be configured as a compo- nent input. See 1760 Series Component Waveform/Vector Monitor User Manual LIGHTNING button is used for both the Light- CONFIG—FORMAT...

  • Page 72: Bowtie

    (Option SC only) can be selected at the same time. When exiting previous (non- MULTIPLE again, the previous be restored. 1760 Series Component Waveform/Vector Monitor User Manual NOTE CONFIGURE menu, page 3-20. mode allows the operator to verify the signal LINE SELECT...

  • Page 73: Displaying A Signal

    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 OVERLAY selected, only one input selec- ) toggles between OVERLAY...

  • Page 74: Overlay

    One line magnified = 200 ns/division Two line magnified = 1 µs/division One field or two field magnified = approximately X20 magnification. 1760 Series Component Waveform/Vector Monitor User Manual LINE/FIELD button remains a four-way toggle, PARADE LINE/FIELD...

  • Page 75: Using The Menus

    (with the menu LED remaining lighted to show this state). To reinstate a menu display, push that menu button again. CRT, PRESET, CONFIG menus will be exited completely when another menu button is pushed. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 76: Clear Menu

    FOCUS VERTPOS Left Bezel Controls Figure 3-1. The CRT menu, showing bezel controls and bezel buttons. 1760 Series Component Waveform/Vector Monitor User Manual to clear part of the menu display, but leave CONFIG menus will be exited completely is pushed.

  • Page 77: Filter Menu

    When selected, the flat display is on the left, with the chrominance-filtered display on the right. 1760 Series Component Waveform/Vector Monitor User Manual WAVEFORM menu is available for WAVEFORM...

  • Page 78: Cursor Menu

    AMPLITUDE VERTPOS Figure 3-2. The VECTOR CURSOR menu. 3-10 1760 Series Component Waveform/Vector Monitor User Manual menu button to enter the cursor menu. VECT+WFM DISPLAY display mode, a bezel button is used to select po- (POLAR) (MARK).

  • Page 79: Waveform Cursor Control

    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 display mode, the bezel buttons are used to (TIME), voltage cursors (V+T), (MARK).

  • Page 80: Figure 3-3 The Waveform Cursor Menu

    Figure 3-3. The WAVEFORM CURSOR menu. Voltage Cursor 1 Voltage Cursor 2 Timing Cursor 1 Timing Cursor 2 VERTPOS Figure 3-4. The VECTOR+WFM CURSOR 3-12 1760 Series Component Waveform/Vector Monitor User Manual ∆ V 700 mV WFM CURSOR VOLT1 VOLT2 TRACK HORIZPOS Left...

  • Page 81: Vector + Waveform (Multiple)

    B- - Y (U) axis. The am- plitude readout can be set for m CONFIG menu, described on page 3-20. 1760 Series Component Waveform/Vector Monitor User Manual VECTOR is pressed and both VECTOR...
  • Page 82 (HPOS) until the center of the displayed test pattern is at the center of the graticule. 3-14 1760 Series Component Waveform/Vector Monitor User Manual POLAR / MARK is pressed, the is selected, two additional menu readouts ap- AMPLITUDE...
  • Page 83 These markers are designed to be used for reference points; there is no amplitude readout. The markers are not affected by 100 IRE set to 1760 Series Component Waveform/Vector Monitor User Manual VOLT selected, use the left bezel VOLT1 cursor at the upper excursion of cursor at the lower excursion.

  • Page 84: Line Select Menu

    Push the corresponding bezel button to toggle between the current field and the fourth next field; for example, 3-16 1760 Series Component Waveform/Vector Monitor User Manual LIN SEL menu button enables the line select mode (one line or 15 lines) —...
  • Page 85 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 ALT 4 FIELD are pushed, a box 15H,...

  • Page 86: Preset Menu

    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, off. PRESET Push the illustrated in Figure 3-5. Turn the left bezel control to select PRESET through the menu).
  • Page 87 When the change has been made satisfactorily, select CEPT to store the new name. 1760 Series Component Waveform/Vector Monitor User Manual RECALL to recall the stored instrument configura- to restore the front-panel setup that was in RECALL was pushed.

  • Page 88: Configure Menu

    REMOTE REFERENCE VERTPOS Left Figure 3-6. The CONFIGURE 3-20 1760 Series Component Waveform/Vector Monitor User Manual button to display the configure menu, REFERENCE (a box appears around the selec- — Selects AC or DC coupling for — Selects the clamp speed. Slow —...

  • Page 89: Vector

    GBR signals may be displayed in either GBR sequence or RGB sequence, as selected through the Table 3-1 shows valid format selections. CONFIG—FORMAT display the front-panel 1760 Series Component Waveform/Vector Monitor User Manual — — B123 COMPOSITE When the internal reference is...

  • Page 90: Standard

    NTSC , PAL, When changes automatically to match the standard of the displayed input signal. A circled “A” precedes NTSC or PAL on the readout. 3-22 1760 Series Component Waveform/Vector Monitor User Manual Valid FORMAT selections. SETUP BARS 75% 100% •...

  • Page 91: Offset

    CONTROL OFFSETS An offset will remain in effect until the user turns the offset affect the 1760 Series Component Waveform/Vector Monitor User Manual VERTICAL POSITION control normally positions OFFSET and 3 with respect to channel 1...

  • Page 92: Calibrate

    If either of these resets is se- lected, a box flashes momentarily around the on- screen label to acknowledge that reset has occurred. RESET VCAL 3-24 1760 Series Component Waveform/Vector Monitor User Manual CALIBRATE — Turns the 1 V internal calibrator signal —...

  • Page 93: Remote

    PAL. Any of the input channels can be designated as a second external reference by selecting that input channel as the through this menu. 1760 Series Component Waveform/Vector Monitor User Manual RESET VCAL cancels any vertical gain adjust- appears on screen. Selecting...

  • Page 94: Gain Menu

    Operator adjustments made with variable gain will be restored when variable gain is selected again. 3-26 1760 Series Component Waveform/Vector Monitor User Manual EXT REF X10. Variable gain is also available, indepen- VAR V GAIN...

  • Page 95: Crt Menu

    TRACE Exiting the menu will return the instrument to normal opera- tion, with the new settings in effect. 1760 Series Component Waveform/Vector Monitor User Manual is used for signal and etched graticule adjust- DISPLAY is selected, the left bezel control...
  • Page 96 Using the Menus 3-28 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 97: Remote Operation

    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 REMOTE rear-panel connector.
  • Page 98 Remote Operation 3-30 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 99: Making Measurements

    Making Measurements...

  • Page 101: Basic Measurements

    Basic Measurements Basic Measurements contains 1760- - Series graticule descrip- tions, followed by specific measurement procedures. This monitor uses an internal graticule, which combines wa- veform and vector markings. The internal graticule scales are on the same plane as the CRT phosphor, eliminating par- allax errors.

  • Page 102: Ntsc Vertical Scales

    The graticules are also marked for K- - Factor tolerances and linear-distortion measurements. These measurements will be described later in this section. Audio K Factor 100% White Level 75% White Level Baseline Setup Sync Tip Figure 4-1. NTSC waveform/vector graticule. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 103: Pal Vertical Scale

    The 525/60 scale (NTSC) is on the left side, and the 625/50 scale (PAL) is on the right. The divisions represent 10 IRE in amplitude (70 mV for PAL). The instrument gain is automatically adjusted for the partic- 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 104: Figure 4-3 Dual Standard Waveform/Vector Graticule

    COMPONENT FORMAT SMPTE BETA K Factor 75% White Level Setup IRE Scale Figure 4-3. Dual Standard waveform/vector graticule. 1760 Series Component Waveform/Vector Monitor User Manual Dual-Standard Graticule Scales APPLICABLE GRATICULE SCALE 525/60 STANDARD STANDARD Left Right Left Right 625/50 Right...

  • Page 105: Making Waveform Measurements

    VARIABLE GAIN unity. If it is not, adjust the (enabled from the GAIN MENU ) for exactly 100 IRE (700 mV PAL) of signal amplitude from baseline to the middle of the white bar. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 106: Vector Graticule

    NTSC and PAL standards. The vector targets can be used with either 75% or 100% amplitude color bar signals. The selection is made through the menu, described on page 3-21. 1760 Series Component Waveform/Vector Monitor User Manual Factor line-time distortion, measure the VAR GAIN CONFIG—GAIN...

  • Page 107: Figure 4-4 Vector Targets

    ±20% of chrominance amplitude centered around standard amplitude. The dimensions of the inner target rep- resent ±3° and ±5% of chrominance amplitude; the vectors associated with the - - V burst terminate in the smaller targets. 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 108 The 1765 graticule is a composite of the PAL and NTSC graticules. There are two inner targets within the larger tar- get; the PAL target, and the NTSC target. The NTSC target is inside the PAL target. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 109: Making Vector Measurements

    B- - Y or U axis. See Figure 4-5. 2° dφ Figure 4-5. Differential gain and phase measurements. 1760 Series Component Waveform/Vector Monitor User Manual Basic Measurements dφ...

  • Page 110: Making Sch Phase Measurements

    A phase reading of 180° indi- cates that the ly matched. 4-10 1760 Series Component Waveform/Vector Monitor User Manual is set to internal, the 1760 has a dual-dot phased.” SC/H is set to , the 1760 has a single-dot display INPUT EXT REF.

  • Page 111: Figure 4-6 Ntsc Dual-Dot Sch Display

    Relative angle indicates degree of SC/H phase. Figure 4-6. NTSC dual-dot SC/H display. Burst Vector 0° Axis Sync Dot Figure 4-7. NTSC single-dot SC/H display. 1760 Series Component Waveform/Vector Monitor User Manual Basic Measurements Sync Dot VECTOR PHASE VECTOR PHASE 4-11...

  • Page 112: Pal

    SC/H phase is stable over the entire frame. For PAL, SC/H is a sine wave resulting from the 25 Hz offset (Figure 4-12). 4-12 1760 Series Component Waveform/Vector Monitor User Manual phase error as the SC/H signal are properly color...

  • Page 113: Figure 4-10 Two-Field Sch R- - Y Display (Ntsc), Showing Proper Sc/H Phase

    Burst Horizontal Sync Figure 4-9. Two-Line SC/H R ---Y display (NTSC), with proper SC/H phase. Figure 4-10. Two-Field SC/H R ---Y display (NTSC), showing proper SC/H phase. 1760 Series Component Waveform/Vector Monitor User Manual Basic Measurements FLAT CHROM DIFF R- - Y...

  • Page 114: Figure 4-11 Two-Field Sch R- - Y Display (Ntsc), Showing Approximate 10° Phase Error

    Basic Measurements Figure 4-11. Two-Field SC/H R ---Y display (NTSC), showing approximate 10° phase error. Figure 4-12. Two-Field SC/H R ---Y display (PAL), showing proper SC/H phase. 4-14 1760 Series Component Waveform/Vector Monitor User Manual VECTOR PHASE FLAT CHROM DIFF...

  • Page 115: Making Audio Measurements

    Gain choices are 0 dBu, 4 dBu, 8 dBu, or 12 dBu. Select gain relative to the system under test. a. Correct Phase c. Phase Error of approximately 30° Figure 4-13. Audio displays. 1760 Series Component Waveform/Vector Monitor User Manual Basic Measurements when display is GAIN MENU AUDIO b.

  • Page 116: Lightning Measurements

    (See Figure 4-14.) 525/60 Setup Figure 4-14. Lightning display showing correct timing. 4-16 1760 Series Component Waveform/Vector Monitor User Manual menu (page 3-21) to set , and select the appropriate format for your . (Selecting CONFIG—VECTOR to clear the menu readout.
  • Page 117 An ellipse indicates a timing error. Due to lower bandwidth amplifiers this signal has less noise obstructing the display than the Bowtie method 1760 Series Component Waveform/Vector Monitor User Manual Basic Measurements GAIN...

  • Page 118: Figure 4-15 Lightning Display Showing Delay

    “Bending” away from center indicates an advance of the color differ- ence signal relative to luminance. Approximate 80 ns delay of Channel 2. Figure 4-15. Lightning display showing delay. 4-18 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 119: Using The Diamond Display

    Using the Diamond Display The 1760- - Series internally transcodes the color-difference formats to GBR for the Diamond display. This display al- lows easy evaluation of the GBR signal for gamut limit violations. To obtain a the rear panel CH-A1, A2, and A3 (or CH-B1, B2, and B3) connectors.
  • Page 120 GBR signals. The Diamond display monitors the actual elec- trical signal, indicating faults in the transcoding hardware as well as operator artistic violations. 4-20 1760 Series Component Waveform/Vector Monitor User Manual NOTE...

  • Page 121: Using The Bowtie Display

    Route a Bowtie test signal from the generator, through the equipment under test, and connect to the 1760- - Series rear- panel CH-A1, A2, and A3 connectors. Use caution when deciding where the Bowtie signal is routed; when transcoded to GBR or encoded to composite, it produces and illegal sig- nal with potential unwanted side effects.
  • Page 122 Channels 2 and 3. The Channel 2 and 3 waveforms are gen- erated to be exactly in phase with the Channel 1 signal in the center of the line. The 1760- - Series subtracts Channel 2 from Channel 1 to make the left half of the display, and Channel 3 from Channel 1 for the right half.

  • Page 123: Time Code Display

    LTC is typically recorded on an unused audio track. The 1760- - Series monitor provides a voltage-versus- time display of the Time Code waveform, which can be used to check for the following problems: No signal.
  • Page 124 Basic Measurements 4-24 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 125: Calibration

    This adjustment may be made with the internal calibrator ( signal. b. Pushing ment and reinstate the factory gain setting. 1760 Series Component Waveform/Vector Monitor User Manual Calibration menu is described on page 3-20. CONFIG WAVEFORM menu button. Select...
  • Page 126 Adjust circle falls on the compass rose (outer ring). b. Pushing ment and reinstate the factory gain setting. 4-26 1760 Series Component Waveform/Vector Monitor User Manual CONFIG , then CAL SIG ON (5 µs/div), adjust the (10 µs/div), adjust for one...

  • Page 127: Appendices

    Appendices...

  • Page 129: Performance Specifications

    Req, and can be assured by completing the Performance Check Procedure (1740A/ 1750A/1760- - Series Service Manual.) Allow a warm-up time of 20 minutes. Performance requirements in the electrical specifications are valid over an ambient temperature range of +20°...

  • Page 130: Electrical Specifications

    Video Input DC Offset Between Channels Video Input Offset Range Video Input Loop-Through Isolation 1760 Series Component Waveform/Vector Monitor User Manual DESCRIPTION Req: 1 V full scale (X1): 1 volt input displayed with- in 1% of 140 IRE (1.00 V PAL) X5 Gain: 0.2 volt input displayed within...
  • Page 131 Chrominance Filter Bandwidth Chrominance Filter Attenuation at 2X F Differentiated Step Filter Attenuation at 2X F 1760 Series Component Waveform/Vector Monitor User Manual Appendix A: Performance Specification DESCRIPTION Typically ≥60 dB ±2% to 10 MHz (X1 Gain) ±4% to 10 MHz Req: (X5 and X10 Gain), on screen signal (0.2 V or...
  • Page 132 DC Restorer 60 Hz (50 Hz) Attenuation DC Restorer Offset Error Fast Settling Time Blanking Shift with 10 to 90% APL Change 1760 Series Component Waveform/Vector Monitor User Manual DESCRIPTION Req: Pulse-to-Bar Ratio 0.99:1 to 1.01:1 Preshoot ≤1% Overshoot ≤1% Ringing ≤1%...
  • Page 133 Input Maximum Operating Input Voltage Absolute Maximum Input Voltage DC Input Impedance Return Loss 1760 Series Component Waveform/Vector Monitor User Manual Appendix A: Performance Specification DESCRIPTION Req: ≤ 1 IRE (7 mV PAL) Typically 3 mV DESCRIPTION Composite video or black burst - -1.8 V to +2.2 V, dc + peak ac...
  • Page 134 Sweep Linearity Magnified Sweep Accuracy Magnified Sweep Linearity Horizontal Position Range External Horizontal Input Remote Sync 1760 Series Component Waveform/Vector Monitor User Manual DESCRIPTION Req: Synchronization: Sweep triggered by horizon- tal and vertical sync pulses Sweep Length: ≈12 divisions Sweep freeruns without input 1 Line: 5 s/division ±1%...
  • Page 135 Table A- 4: Measurement Cursors CATEGORY Waveform Accuracy Vector Accuracy Table A- 5: RGB/YRGB CATEGORY RGB/YRGB 1760 Series Component Waveform/Vector Monitor User Manual Appendix A: Performance Specification DESCRIPTION Req: Voltage: 0.5% Timing: 0.5%, for line-rate sweeps Typically 0.5% for field-rate sweeps Gain: ±1.5%...
  • Page 136 PAL +V Display Phase Accuracy Error Display Gain Accuracy Error Quadrature Phasing Error Subcarrier Regenerator Pull-in Range 1760 Series Component Waveform/Vector Monitor User Manual DESCRIPTION Amplitude: 1.0 V ±0.5% Req: Frequency: 100 kHz ±0.1% Req: Crystal controlled 10 s square wave , ±1%...
  • Page 137 Control +3 dB to - -6 dB Burst Jitter Clamp Stability Phase Control Range Phase Control Quantization Position Control Range Differential Phase Differential Gain 1760 Series Component Waveform/Vector Monitor User Manual Appendix A: Performance Specification DESCRIPTION ≤2 seconds ≤2° (F Req: NTSC: to F ≤2°...
  • Page 138 Input Input Impedance Input Amplitude Maximum Input Voltage Bandwidth (- -3 dB) A-10 1760 Series Component Waveform/Vector Monitor User Manual DESCRIPTION DC coupled, differential input 20 kΩ 0, 4, 8, & 12 dBm full scale. Menu se- lected. ±0.5 dB...
  • Page 139 Table A- 11: Component Vector Mode CATEGORY Vertical Bandwidth Horizontal to Vertical Bandwidth Matching Vertical Gain Accuracy Horizontal Gain Accuracy 1760 Series Component Waveform/Vector Monitor User Manual Appendix A: Performance Specification DESCRIPTION ≤5° Req: Applies over a temperature range of 0 - - 50° C Calibrated at 25°...
  • Page 140 Table A- 13: Bowtie Mode CATEGORY Common Mode Rejection Ratio Electronic Graticule Display A-12 1760 Series Component Waveform/Vector Monitor User Manual DESCRIPTION ≤0.25 box with the color bar black display dot Req: centered in target Ch A2 or B2 is displayed on the horizon- tal axis and Ch A3 or B3 is displayed on the vertical axis.
  • Page 141 Trace Rotation Range Graticule Table A- 16: Power Source CATEGORY Mains Voltage Range Mains Frequency Power Consumption 1760 Series Component Waveform/Vector Monitor User Manual Appendix A: Performance Specification DESCRIPTION GBR, SMPTE, MII, or Betacam format; selectable from a menu 1 ±3% Req: Typically <1%...
  • Page 142 Transportation Humidity Table A- 18: Physical Characteristics CATEGORY Dimensions Weight A-14 1760 Series Component Waveform/Vector Monitor User Manual DESCRIPTION Req: 0° to 50° C (+32° to 122° F) Req: - -40° to 75° C (- -40° to 158° F) Req:...

  • Page 143: Certifications And Compliances

    IEC 801-3 IEC 801-4 High-quality shielded cables must be used to ensure compliance to the above listed standards. This product complies when installed into any of the following Tektronix instrument enclosures: Australia/New Zealand Complies with EMC provision of Radiocommunications Act...
  • Page 144 European Union Low Voltage Directive 73/23/EEC, amended by 93/69/EEC Compliance EN 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use. A-16 1760 Series Component Waveform/Vector Monitor User Manual Secondary (signal level) or battery operated circuits of electronic equipment.
  • Page 145 Overvoltage Category Overvoltage Category II (as defined in IEC 1010-1, Annex J) Pollution Degree Pollution Degree 2 (as defined in IEC 1010-1). Note: Rated for indoor use only. 1760 Series Component Waveform/Vector Monitor User Manual Appendix A: Performance Specification A-17...
  • Page 146 Appendix A: Performance Specification A-18 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 147: Appendix B Remote Connectors

    Staircase / Ext. Ground Horizontal En- (TTL low) able External Blank- Negative-going signal ing Input 1760 Series Component Waveform/Vector Monitor User Manual Appendix B REMOTE Miscellaneous Information ≈9 div of sweep. (Staircase/external horizontal and RGB/YRGB selections are made through the menu.) 10 div.
  • Page 148 (TTL low) Preset 2 Ground (TTL low) Preset 3 Ground (TTL low) 1760 Series Component Waveform/Vector Monitor User Manual Miscellaneous Information 30/90 Hz for NTSC 25/100 Hz for PAL Grounding this pin enables the function. Longitudinal Time Code, differ- ential.
  • Page 149 Preset 8 Ground (TTL low) Store Ground (TTL low) 1760 Series Component Waveform/Vector Monitor User Manual Appendix B: Remote Connectors Miscellaneous Information Grounding pin 20 recalls setup from preset 4. Grounding pins 20 and 25 stores current setup at preset 4.

  • Page 150: Figure B-2 Using The 1760- - Series As A 1740 / 1750- - Series Replacement

    Appendix B: Remote Connectors Remote Connector Converter If the 1760- - Series is used as a direct replacement for a 1740- - Series or 1750- - Series instrument, construct an adapter or rewire the remote cable according to Figure B-2. If the...

  • Page 151: Figure B-3 Rear Panel Rs232 Connector

    The RS232 interface is used during an upgrade of the instru- ment software. Contact Tektronix for information on availability of software upgrades and RS232 remote control commands. 1760 Series Component Waveform/Vector Monitor User Manual Appendix B: Remote Connectors DATA NUMBER CONNECTION...
  • Page 152 Appendix B: Remote Connectors 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 153: Appendix C User Service

    This section contains instructions for user and preventive maintenance. If the instrument does not function properly, it should be referred to qualified service personnel or returned to Tektronix for service. Packaging directions for shipment are on page 1-9. Cleaning or Replacing the Fan Filter To ensure adequate air flow, it is essential to clean or replace the rear-panel fan filter regularly.

  • Page 154: Graticule Light Replacement

    Graticule Light Replacement Replacement Bulbs Replacement bulbs are supplied with this instru- ment as Standard Accessories. Additional bulbs can be purchased from Tektronix or from local electronics distribution sources. The Tektronix part number and ordering information is given on page 1-7.

  • Page 155: Figure C-1 Graticule Light Replacement

    Replace the five knobs below the CRT and tighten the set screws. Recess Remove this panel (shaded portion) Remove these five knobs Figure C-1. Graticule light replacement. 1760 Series Component Waveform/Vector Monitor User Manual Appendix C: User Service Recess...

  • Page 156: Cleaning

    Abrasive cleaners should not be used. Interior Interior cleaning and maintenance should be performed by qualified service personnel only. Instructions for interior maintenance are provided in the service manual. 1760 Series Component Waveform/Vector Monitor User Manual CAUTION...

  • Page 157: Replacing The Crt Filter

    Position the ridged side of the filter towards the CRT to eliminate unwanted visual effects on the CRT face. Replace the bezel and bezel screws. Tighten screws (8 in lbs). 1760 Series Component Waveform/Vector Monitor User Manual Appendix C: User Service CAUTION...
  • Page 158 Replace the panel below the CRT, and press on both the right and left sides of the panel until it snaps into place. Replace the five knobs below the CRT and tighten the set screws. 1760 Series Component Waveform/Vector Monitor User Manual...

  • Page 159: Appendix D Software Version

    Table D-1. Software Releases Ver- Date Serial No. sion B010100 1993 1993 1760 Series Component Waveform/Vector Monitor User Manual Appendix D Software Version Comments Original software New features: On-screen field sweep indication. Configure menu selection for RGB Parade display. Audio &...
  • Page 160 Appendix D: Software Version 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 161 Glossary...
  • Page 163 Also called “color black,” black burst is a composite video signal consisting of all horizontal and vertical synchronization information, burst, and usually setup. Typically used as the house reference synchronization signal in television facilities. 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 164 B- -Y (NTSC) One of the color difference signals used in the NTSC system, obtained by subtracting luminance from the blue camera signal. This is the signal which drives the horizontal axis of a vectorscope. 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 165 Created by adding quadrature amplitude modulated R- - Y and B- - Y to the luminance signal for NTSC systems or U and V to the luminance signal for PAL systems. 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 166 In television it may refer to: (1) An instrument, such as a TEKTRONIX 1450, which takes video in its transmitted form (modulated onto the pic- ture carrier) and converts it to baseband.
  • Page 167 It extends from the start of front porch to the end of back porch. 1760 Series Component Waveform/Vector Monitor User Manual is the process by which The portion of the video signal between the...
  • Page 168 R- - Y, B- - Y) component set. Modulated (NTSC) When referring to television test signals, this term implies that chrominance information is present. (For example, a modulated staircase has subcarrier on each step.) 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 169 Red, Green, and Blue. Also referred to as GBR. The three primary colors used in color television’s additive color reproduction system. These are the three color signals gener- 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 170 The modulation sidebands of the color subcar- rier contain the R- - Y (V) and B- - Y (U) information. For NTSC, subcarrier frequency is 3.579545 MHz. For PAL, subcarrier frequency is 4,433,619.75 Hz. 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 171 Vertical Interval The synchronizing information which appears between fields and signals the picture monitor to go back to the top of the screen to begin another vertical scan. 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 172 B- - Y is the second color difference sig- nal. Zero Carrier Reference A pulse in the vertical interval which is produced by the demodulator to provide a reference for evaluating depth of modulation. G-10 1760 Series Component Waveform/Vector Monitor User Manual...
  • Page 173 Index...
  • Page 175 Bowtie Display, 4-20 Cabinets (optional accessories) installation, 1-12 part numbers, 1-8 Calibrator Signal frequency, 3-24 Specification, A-8 1760 Series Component Waveform/Vector Monitor User Manual Index Camera, 1-7 Carrying case, 1-8 Certifications, A-15 Chroma bandwidth measurements, 3-9, Clamp point, 3-20 Cleaning...
  • Page 176 Filter, air, see fan filter, 1-7 Focus, 3-27 Front-panel controls, 2-1 Front-panel cover , 1-7 Fuse part number, 1-7 replacing, C-1 I ---2 1760 Series Component Waveform/Vector Monitor User Manual Gain adjustment, 4-23 menu, 3-26 reset, 3-24, 3-25 X1, X5, X10, 3-26 Graticule illumination, 3-27...
  • Page 177 2-7, 3-26 line select, 2-7, 3-16 multiple menu displays, 3-7 preset, 2-7, 3-18 using the menus, 3-7 1760 Series Component Waveform/Vector Monitor User Manual Multiple display, 2-5, 3-4 Multi-use controls, 2-2 Offsets, enable, 3-23 Operating standard, 1-1, 3-22 Operating voltage, 1-11...
  • Page 178 CRT Display, A-13 Electrical, A-2 Environmental Characteristics, A-14 External Reference, A-5 Lightning Mode, A-12 I ---4 1760 Series Component Waveform/Vector Monitor User Manual Measurement Cursors, A-7 Physical Characteristics, A-14 Power source, A-13 RGB/YRGB, A-7 SCH Phase Mode, A-11 Time code, A-10...
  • Page 179 Vector Mode, Specification, A-8 Vertical Deflection, Specification, A-2 Vertical position control, 2-4 Viewing hood (optional accessory), 1-7 Voltage cursors, 3-11 1760 Series Component Waveform/Vector Monitor User Manual Waveform cursors, 3-11 Waveform display, 2-4, 3-2 Waveform graticule, 4-1 Waveform markers, 3-11...
  • Page 180 Index I ---6 1760 Series Component Waveform/Vector Monitor User Manual...

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