Tektronix VM Series User Manual
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Tektronix VM Series User Manual

Tektronix VM Series User Manual

Video measurement system
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VM Series
Video Measurement System
071-2103-07
*P071210307*
071210307

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  • Page 1 User Manual VM Series Video Measurement System 071-2103-07 *P071210307* 071210307...
  • Page 3 User Manual VM Series Video Measurement System 071-2103-07 This document applies to Option SD/HD software version 3.X and above. This document applies to Option VGA software version 3.X and above. www.tektronix.com...
  • Page 4 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and are protected by United States copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material.
  • Page 5 Warranty 2 Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year 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 7: Table Of Contents

    ........... . 1- - 1 Compatibility of the VM Series Option HD with the VM5000HD ..
  • Page 8 ........3- - 75 VM Series Video Measurement System User Manual...
  • Page 9 Displaying H Timing Measurement Results ......3- - 153 VM Series Video Measurement System User Manual...
  • Page 10 ....... . . E- - 10 Index VM Series Video Measurement System User Manual...
  • Page 11 ........2- -8 VM Series Video Measurement System User Manual...
  • Page 12 ........3- -49 VM Series Video Measurement System User Manual...
  • Page 13 Figure 3- -32: Displaying additional units for the Frequency Response measurement ......3- -131 VM Series Video Measurement System User Manual...
  • Page 14 3- -144 Figure 3- -56: Displaying limit values for the V Sync measurement for SD Progressive format ... . . 3- -144 viii VM Series Video Measurement System User Manual...
  • Page 15 Figure 3- -85: Displaying Pass/Fail results (Option SD/HD) ..3- -164 Figure 3- -86: Displaying Pass/Fail results (Option VGA) ..3- -164 VM Series Video Measurement System User Manual...
  • Page 16 Figure E- -4: Using DVD signals ......E- -7 VM Series Video Measurement System User Manual...
  • Page 17 Table 3- -6: Status Box Indicators in Results Summary pane ..3- -126 Table 3- -7: Warning Box Indicators in Results Summary pane ..3- -126 VM Series Video Measurement System User Manual...
  • Page 18 E- -8 Table E- -12: H.264 Transport Streams ......E- -9 VM Series Video Measurement System User Manual...

  • Page 19: Preface

    Preface This is the user manual for the VM Series Video Measurement System. This manual focuses on the automatic video measurement functionality; it does not cover the oscilloscope functionality. Refer to Related Manuals and Online Documents to locate information about using the oscilloscope functionality.

  • Page 20: Related Manuals And Online Documents

    The VM Series Quick Start User Manual provides information about installation and and also available on the software CD as a basic operating concepts to enable you to start using VM Series as quickly as possible. PDF file) VM Series Video Measurement System...

  • Page 21: General Safety Summary

    Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. Provide Proper Ventilation. Refer to the manual’s installation instructions for details on installing the product so it has proper ventilation. VM Series Video Measurement System User Manual...
  • Page 22 CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: CAUTION WARNING Protective Ground Refer to Manual High Voltage (Earth) Terminal VM Series Video Measurement System User Manual...

  • Page 23: Environmental Considerations

    See www.dtsc.ca.gov/ha- zardouswaste/perchlorate for additional information. Restriction of Hazardous This product has been classified as Monitoring and Control equipment, and is Substances outside the scope of the 2002/95/EC RoHS Directive. xvii VM Series Video Measurement System User Manual...
  • Page 24 Environmental Considerations xviii VM Series Video Measurement System User Manual...

  • Page 25: Getting Started

    Getting Started...

  • Page 27: Product Description

    H Incoming Inspection procedure verifies basic operation and functionality. H Accessories lists the standard and optional accessories for this product. Key Features The VM Series Video Measurement System is a high-performance, oscilloscope- based video measurement system. Key features include: H Fast, accurate, and repeatable video measurements...
  • Page 28 PC video signal (Option VGA) quality is up to the challenge of high performance displays, and to clearly differentiate between input signal and display device impairments. You can use the VM Series Video Measurement System for the following purposes: H R&D...

  • Page 29: Compatibility Of The Vm Series Option Hd With The Vm5000Hd

    50 Hz through 100 Hz. The highest refresh rate for option VGA is 120 Hz and the highest resolution is 2048X2048. The VM Series System runs the Windows operating system, which provides for easy operation with minimal training time. A 12.1 in (307 mm) color display provides a bright, clear, and crisp display of waveforms and measurement results.

  • Page 30: Installation 1

    Current, DC to 50 MHz, 15 A DC TCP202 Low Capacitance, 20X, 3 GHz P6158 Current Measurement TCPA3000 Current Measurement TCPA4000 Differential Preamp ADA400A High Voltage Differential P5200 Optical/Electrical Converter P6701B Optical/Electrical Converter P6703B 1- 4 VM Series Video Measurement System User Manual...

  • Page 31: Installation

    Refer to the tables beginning on page 1- -23 for a list of the options and accesso- ries shipped with this instrument. Remember to fill out and send in the customer registration card. 1- 5 VM Series Video Measurement System User Manual...

  • Page 32: Checking The Environment Requirements

    CAUTION. To ensure proper cooling, keep the bottom and left side of the instrument clear of obstructions. Operating Requirements The specifications in Appendix A list the power source, temperature, humidity, and altitude operating requirements for the instrument. 1- 6 VM Series Video Measurement System User Manual...

  • Page 33: Powering On The Instrument

    On/Standby switch for up to 20 seconds to start the shutdown process. To completely remove power to the instrument, push the On/Standby switch and then disconnect the power cord from the power source. 1- 7 VM Series Video Measurement System User Manual...

  • Page 34: Connecting To A Network

    Disabled for the command listed in step 8. The instrument will boot faster with network access disabled. 1. Begin with the instrument power off. 2. Attach a keyboard and mouse to the instrument. 3. Power on the instrument. 1- 8 VM Series Video Measurement System User Manual...

  • Page 35: Adjusting Display Contrast

    5. Select the Color tab. 6. Adjust the slider control for the desired gamma setting. The screen brightness will change as you move the slider control. 7. Click Apply. 8. Click OK. 1- 9 VM Series Video Measurement System User Manual...

  • Page 36: Getting Acquainted With Your Instrument

    3. USB port 4. Ground terminal 5. Auxillary Trigger Input 6. Channel 1- -4 inputs 7. Probe calibration output 8. Probe compensation output 9. Recovered clock output 10. Recovered data output 1- 10 VM Series Video Measurement System User Manual...

  • Page 37: Figure 1- 6: Side And Rear Panels Of The Instrument

    Installation Side and Rear Panels Figure 1- 6: Side and rear panels of the instrument 1- 11 VM Series Video Measurement System User Manual...

  • Page 38: Backing Up User Files

    4. Use the Backup Wizard to select the items you want to back up and the destination. The destination can be the floppy drive or a third-party storage device over one of the side-panel ports. 1- 12 VM Series Video Measurement System User Manual...

  • Page 39: Installing Software

    VM Series Video Measurement System Product Software CD-ROM. VM Series Remote The GPIB programmer information is available in the VM Series Video Command Information Measurement System Programmer Manual PDF located on the VM Series product software CD- -ROM.
  • Page 40 Installation 1- 14 VM Series Video Measurement System User Manual...

  • Page 41: Incoming Inspection

    If the instrument fails any test within this section, it may need service. To contact Tektronix for service, see Contacting Tektronix on the copyright page. Make sure you have installed the instrument as described in Installation starting on page 1- -5.

  • Page 42: Functional Test

    Option SD/HD This procedure uses the output from a video signal generator, TG700 or equivalent, to verify the VM Series System HD and SD video application functionality. Two functional tests are described, one for option HD and another for option SD. If you have both options, either test alone will verify functionality adequately.
  • Page 43 AWVG7 module Sync Pickoff 3. Power on the VM Series System instrument and wait for it to complete the power-on process. 4. Select File > Run Application > VM HD and SD Video to display the VM Series System application window.

  • Page 44: Figure 1- 7: Displaying Measurement Values In Color Bars Measurement

    Figure 1- 7: Displaying measurement values in color bars measurement 10. Select the Picture button to display the VM Series Video Monitor Window. Verify that a color bars signal appears. This completes the functional test. If your VM Series did not complete the functional test satisfactorily, please contact your local Tektronix Service representative.
  • Page 45 VGA display card output to the input channels on the MIU using the VGA to 5 x BNC adapter cable. 4. Ensure that all four channels of the VM Series System are enabled. All four channel buttons must be glowing.

  • Page 46: Figure 1- 8: Format Panel

    Leave the settings in other configuration panels at their default values. 9. Press the Run button. 10. If the VM Series System is functioning normally, the four selected measurements will be executed without any warning message(s). The results should be displayed on the corresponding result panels (for example, Results >...

  • Page 47: Figure 1- 10: Color Bars Measurement Results Display

    The results shown in Figure 1- -10 through Figure 1- -13 are typical results. Your results may vary. Figure 1- 10: Color Bars measurement results display Figure 1- 11: H Sync measurement results display Figure 1- 12: V Sync measurement results display 1- 21 VM Series Video Measurement System User Manual...

  • Page 48: Figure 1- 13: Video Transient Measurement Results Display

    G channel, the corresponding results will not be displayed. So, check the G channel cables and their connection at the input side of the MIU. Between the MIU and VM Series System check the Ch 1 cable and its connections.

  • Page 49: Options And Accessories

    You can order the options shown in Table 1- -2 with the instrument. For the current list of accessories, upgrades, and options, including service options, available for your VM6000, visit the Tektronix Web site, www.tektronix.com. Table 1- 2: Instrument options...

  • Page 50: Accessories

    071- - 2103- - XX VM Series Video Measurement System Programmer Manual 071- - 2104- - XX in PDF format on VM Series Video Measurement System Product Software DPO7000, DSA70000, and DPO70000 Digital Phosphor Oscilloscopes Quick 071- - 1733- - XX...
  • Page 51 020- - 2767- - XX VM Series Video Measurement System product software with online help, VM Series Video Measurement System User Manual PDF, VM Series Video Measurement System Quick Start User Manual PDF, and release notes) DPO7000, DSA70000, and DPO70000 Product Software CD-ROM...

  • Page 52: Table 1- 4: Recommended Accessories

    VM Series Signal Sources, baseband test signals 020- - 2774- - XX VM Series Signal Sources, PC bitmap graphics test signal files 020- - 2775- - XX VM Series Signal Sources, H.264 SD & HD streams 020- - 2776- - XX...

  • Page 53: Table 1- 5: Optional Accessories

    012- - 1214- - 00 The accessories in Table 1- -5 were orderable for use with the instrument at the time this manual was published. Consult a current Tektronix catalog or the Tektronix Web site for additions, changes, and details.
  • Page 54 Options and Accessories 1- 28 VM Series Video Measurement System User Manual...

  • Page 55: Operating Basics

    Operating Basics...

  • Page 57: Input Signal Connection Requirements

    Operating Basics This section provides basic information on how to use the VM Series System. More detailed measurement information can be found in the Reference section. Input Signal Connection Requirements Option SD/HD Ω Use only 75 coaxial cables to connect the video device under test to the instrument.

  • Page 58: Figure 2- 2: Rgbhv Measurement Interface Unit

    Measurement Interface Unit. See Figure 2- -2. Figure 2- 2: RGBHV Measurement Interface Unit You can also connect the video device under test to the VM Series System by using the supplied VGA Connector to 5X cable. See Figure 2- -3. If you use this method, you will need to connect the cable to the VM Series System using the supplied precision terminations.

  • Page 59: Connecting Input Signals

    Setup 1A - Three-Wire There are two ways to connect the Sync Pickoff to the VM Series System. One Video with Composite way connects the Sync Pickoff directly to the input and the other way connects through a T-connector attached to a 75 Ω...

  • Page 60: Figure 2- 4: Connecting To A Vm6000 / Dpo7000 Series Instrument

    Operating Basics Figure 2- 4: Connecting to a VM6000 / DPO7000 Series instrument Figure 2- 5: Connecting to a VM5000 / TDS5000 Series instrument 2- 4 VM Series Video Measurement System User Manual...

  • Page 61: Figure 2- 6: Connecting To A Vm6000 / Dpo7000 Series Instrument

    Operating Basics Setup 1B - Three-Wire There are two ways to connect the Sync Pickoff to the VM Series System. One Analog Video with way connects the Sync Pickoff directly to the input and the other way connects through a T-connector attached to a 75 Ω termination. If you are using a...

  • Page 62: Figure 2- 7: Connecting To A Vm5000 / Tds5000 Series Instrument

    Verify that the trigger channel is set to Channel 4 (the default setting). If the trigger setting (Configuration > Operation) is not set to Channel 4, you will see signal warning messages and will be unable to take measurements. 2- 6 VM Series Video Measurement System User Manual...

  • Page 63: Figure 2- 9: Connecting To A Vm6000 / Dpo7000 Series Instrument

    Y/G to - -65 dB (30 MHz noise bandwidth). Figure 2- 9: Connecting to a VM6000 / DPO7000 Series instrument Figure 2- 10: Connecting to a VM5000 / TDS5000 Series instrument 2- 7 VM Series Video Measurement System User Manual...

  • Page 64: Figure 2- 11: Connecting To A Vm6000 / Dpo7000 Series Instrument

    See Figure 2- -11. Figure 2- 11: Connecting to a VM6000 / DPO7000 Series instrument Figure 2- 12: Connecting to a VM5000 / TDS5000 Series instrument 2- 8 VM Series Video Measurement System User Manual...
  • Page 65 RGBHV Measurement Interface Unit to connect the PC video card to the VM Series System. Using the RGBHV MIU provides the most accurate measurement Interface Unit results. Figure 2- 13: Connecting to a VM6000 / DPO7000 Series instrument 2- 9 VM Series Video Measurement System User Manual...
  • Page 66 Operating Basics Figure 2- 14: Connecting to a VM5000 / TDS5000 Series instrument 2- 10 VM Series Video Measurement System User Manual...
  • Page 67 Figure 2- 15: Connecting the DUT to the RGBHV Measurement Interface Unit 2. Connect the outputs (Aux, CH1- -CH4) of the RGBHV Measurement Interface Unit to same inputs on the VM Series System (that is, connect the CH1 output to the CH1 input).
  • Page 68 Figure 2- 17: Connecting the RGBHV MIU to a VM5000 / TDS5000 Series instrument 3. Connect the RS-232C cable between the RGBHV Measurement Interface Unit and the COM1 port on the VM Series System. See Figure 2- -18. Figure 2- 18: Connecting the RS-232C cable between the MIU and the VM Series System 4.
  • Page 69 Use this setup for testing PC and play-out device video when it is not convenient Connector to 5X Cable to use the RGBHV Measurement Interface Unit. To ensure accurate measurements, connect the signals to the VM Series System using the T-connec- Ω tors and precision terminations on CH1- -CH4. You must use 75 terminations on CH1- -CH3 (used for GBR) and 2.21 kΩ...
  • Page 70 Operating Basics To connect the DUT to the VM Series System using a 5X cable: 1. Install the included 75 Ω terminations between the end of the BNC cables and the instrument input Channels 1 through 3, using the included BNC T-connectors.
  • Page 71 3. Connect the PC video output signals to the VM Series System. See Figure 2- -23. Connect the H Sync signal using the 2.21 kΩ adapter to begin with. The VM Series System will prompt you to change it to the 301 Ω adapter if necessary.
  • Page 72 Figure 2- 23: Connecting the PC video output signals to the VM5000 / TDS5000 Series instrument A pop-up warning appears to prompt you to change signal termination on CH4 when making a H Sync measurement. See Figure 2- -24. 2- 16 VM Series Video Measurement System User Manual...

  • Page 73: Signal Path Compensation

    H Sync V Sync None V Sync signal is connected to this channel only when making a V Timing or V Sync measurement. The VM Series System will prompt you for this connection change if necessary. Signal Path Compensation To optimize measurement accuracy, see the oscilloscope online help to perform the instrument signal path compensation procedure.

  • Page 74: Sync Pickoff Compensation - Vm6000 And Dpo7000 Series, Option Sd/Hd Only

    3. Connect the minigrabbers to the PROBE COMP connector. Figure 2- 26: Attaching the Sync Pickoff to a BNC-to-minigrabbers adapter and connecting to PROBE COMP 4. Select CH1 and CH4. Push FastAcq. Push AUTOSET. 2- 18 VM Series Video Measurement System User Manual...
  • Page 75 Sync Pickoff compensation (the adjustment is accessed through the side of the small housing). Figure 2- 27: Selecting AUTOSET Figure 2- 28: Properly compensated Figure 2- 29: Under compensated 2- 19 VM Series Video Measurement System User Manual...
  • Page 76 Operating Basics Figure 2- 30: Over compensated 6. If necessary, adjust the sync pickoff. Repeat as needed Figure 2- 31: Adjusting the compensation 2- 20 VM Series Video Measurement System User Manual...

  • Page 77: The Matrix Test Signal

    See Appendix E, Signal Source Package Contents for a full description of the files in the Signal Source Disks. Figure 2- -32 shows the Option SD/HD Matrix test signal. Table 2- -2 shows the signal elements. Figure 2- 32: Option SD/HD Matrix signal 2- 21 VM Series Video Measurement System User Manual...

  • Page 78: Table 2- 2: Option Sd/Hd Matrix Signal Elements

    YPbPr 16. Flat Field 7.5% All Sweep Multiburst 5. RGB 11. RGB Crosstalk RGB 17. Flat Field 50% Multiburst 6. RGB Pulse 12. YPbPr YPbPr 18. Flat Field Bars Crosstalk 100% 2- 22 VM Series Video Measurement System User Manual...

  • Page 79: Table 2- 3: Elements Of Option Vga Matrix Signal

    8. Half White and Half Black The addressable line number pattern of the matrix signal is based on the following equations: Half White and Half Black Bars (1- -9.5%) Nine Color Bars (10.5- -29.5%) 2- 23 VM Series Video Measurement System User Manual...

  • Page 80: Table 2- 4: Resolutions And Line Number Ranges Supported At 60 Hz (Dmt Standard) For Option Vga

    888- - 1116 1074- - 1348 8. Half White and 461- - 507 570- - 627 730- - 803 968- - 1065 1135- - 1249 1128- - 1242 1362- - 1499 Half Black 2- 24 VM Series Video Measurement System User Manual...

  • Page 81: Starting The Application

    60 Hz refresh rate. To view the active video line number location for a specific pattern at another refresh rate, locate the Microsoft Excel file, Matrix- Signals-LineNumbers.xls located on the VM Series software CD. This file lists the Actual Video line numbers for all supported refresh rates.
  • Page 82 3. The instrument reduces the Option SD/HD waveform area to the upper part of the screen, and opens the VM Series application in the lower part of the screen. Option VGA 2- 26 VM Series Video Measurement System User Manual...

  • Page 83: The Vm Series Application User Interface

    6. Vectorscope button (Option SD/HD): Displays the signal in vectorscope format. 7. To access the Windows desktop, for example, to view reports, click Hide. In the main screen, click File > Minimize, and then click Hide again. 2- 27 VM Series Video Measurement System User Manual...

  • Page 84: Measurement Steps Overview

    4. Click Run to run the selected measurements and view the measurement results (page 2- -48). 5. Use the Utilities > Generate Report menu to save the measurement results to a file (page 2- -58). 2- 28 VM Series Video Measurement System User Manual...

  • Page 85: Setting The Input Signal Format

    Configuration > Format. 2. The Format panel appears. Option SD/HD When Auto Detect is selected or a valid format is not available, then the format dependent measurement input parameters are disabled. Option VGA 2- 29 VM Series Video Measurement System User Manual...
  • Page 86 The detected format name is displayed under the measurement name in the Results panel for each selected measurement. “- -- -- -” will be displayed when a valid format has not been detected. 2- 30 VM Series Video Measurement System User Manual...
  • Page 87 To save your new format, enter a name in the Format Name field and click Save. To delete a user defined format, select the User Defined format and click Delete. Option VGA 2- 31 VM Series Video Measurement System User Manual...
  • Page 88 GTF enables new formats and refresh rates to be developed, but is based on some set parameters to improve the likelihood of interchange. 2- 32 VM Series Video Measurement System User Manual...

  • Page 89: Selecting The Measurements

    CVT, DMT, and GTF. A message informs you of the change. Selecting the Measurements 1. On the menu bar, click Option SD/HD Option VGA Configuration > Measurements. 2. Select from one to twelve Option SD/HD measurements in any combination. Option VGA 2- 33 VM Series Video Measurement System User Manual...

  • Page 90: Setting The Measurement Run Operations

    Option SD/HD Operations window. These settings control how the instrument sets up and acquires measurements when you click Run. Option VGA 3. Select how the instrument sets up and runs the measurements. 2- 34 VM Series Video Measurement System User Manual...
  • Page 91 Continuously continually takes measurements. You must select the Stop button to stop measure- ments. Once & Report takes each selected measurement the number of times determined by the averaging setting, presents the report, and stops taking measurements. 2- 35 VM Series Video Measurement System User Manual...
  • Page 92 Auto Scale step. See page 3- -8 for details. NOTE. If you take measurements on the wrong line or with the wrong scale setup, press the Restore Default button before taking measurements again. 2- 36 VM Series Video Measurement System User Manual...
  • Page 93 Utilities > Generate Report. The Results Summary panel is not accessible when Multi Lines is selected. For more information, see Taking Measurements Across Multi Lines, on page 2- -51. 2- 37 VM Series Video Measurement System User Manual...
  • Page 94 V Sync signals vary between the timing standards. In the absence of the MIU and with Auto Detect selected, the VM Series will prompt you to connect the H Sync and V Sync signals to determine the polarities. If you use the MIU, the VM Series will automatically determine the H Sync and V Sync polarities.

  • Page 95: Setting The Measurement Warnings

    Warning Types Reported and the Control Options when you select the Run button. 3. Select the warning messages to report when a warning occurs. See page 3- -10 for more information. 2- 39 VM Series Video Measurement System User Manual...
  • Page 96 LogOld.txt file. If you want to save the data in the LogOld.txt file, you must save the file under a different name before it is overwritten. 2- 40 VM Series Video Measurement System User Manual...

  • Page 97: Setting Reference And Limits Options

    Operating Basics Setting Reference and Limits Options When you run a measurement relative to a reference, the VM Series runs the measurements and displays the difference between the measured value and the reference value. The reference values are stored in a reference file. Limit Testing provides a Pass/Fail indication by comparing the measured value to limit values.
  • Page 98 For more details, see page 3- -82. When you select the Stop on Limit Testing Failure option, the measurement execu- tion stops when limit testing fails. 2- 42 VM Series Video Measurement System User Manual...

  • Page 99: Displaying The Input Signal As A Picture

    Operating Basics Displaying the Input Signal as a Picture The VM Series will display a picture of the input signal for Options SD, HD, and VGA. 1. Click the picture button. 2. This launches the video monitor Option SD/HD window. The instrument dis- plays the picture.

  • Page 100: Changing Picture Display Settings

    Note that the line number on the Picture & Vector tab is not used to specify where measurements are taken. 2- 44 VM Series Video Measurement System User Manual...
  • Page 101 The 4x3 setting is for SD format and 16x9 is for HD format. 5. Sets the Graticule and the Scale of the Vector Display. 2- 45 VM Series Video Measurement System User Manual...

  • Page 102: Displaying The Input Signal In A Vectorscope Window For Option Sd/Hd

    Operating Basics Displaying the Input Signal in a Vectorscope Window for Option SD/HD The VM Series can display the input signal in a vectorscope window so that you can quickly see the color range of the signal. The vectorscope display is created by displaying the chrominance portion of the video signal in its two components, B- -Y and R- -Y.
  • Page 103 HD or SD depending on the format selected. 5. Click the vector button. 6. This launches the video monitor display window. Click the maximize button to expand the vectorscope display to full screen. 2- 47 VM Series Video Measurement System User Manual...

  • Page 104: Taking And Viewing The Measurement Results

    Option VGA NOTE. The internal measurement results have a higher precision than the results displayed, which are rounded to three decimal places. 2- 48 VM Series Video Measurement System User Manual...
  • Page 105 2. The instrument displays the Option SD/HD Results Summary window when two or more measure- ments are selected. The results are displayed as Pass or Fail if Limit Testing is enabled. Option VGA 2- 49 VM Series Video Measurement System User Manual...
  • Page 106 Results menu and any one of the selected measurements. Option VGA 4. If you set the run operation to Continuously, press the Stop button to stop taking measurements. 2- 50 VM Series Video Measurement System User Manual...

  • Page 107: Taking Measurements Across Multiple Lines

    > Generate Report to speci- fy the parameters of the file into which the measurement results will be saved. The Results panel displays the range of line numbers in the Line Number field. 2- 51 VM Series Video Measurement System User Manual...

  • Page 108: Changing Line Number Or Averaging On The Results Screen

    See page 3- -17 for information on line numbers and averaging. Option SD/HD 1. Select a measurement from the Results menu. For example, click Results > Color Bars The instrument displays the Color Bars measurement results. Option VGA 2- 52 VM Series Video Measurement System User Manual...
  • Page 109 3. Select the keypad icon to the left of the field to display a virtual keyboard to enter values using the touch screen. 4. Use the indicated general purpose knob to change the values. 2- 53 VM Series Video Measurement System User Manual...

  • Page 110: Saving Measurement Setups

    Option SD/HD. is C:\VMApps\OptHDSD. Option VGA The default save location for Option VGA is C:\VMApps\OptVGA. 2. Select the Look in list to navigate to a different directory other than the default save location. 2- 54 VM Series Video Measurement System User Manual...
  • Page 111 (or you can choose your own). It automatically appends .vmset to the file name of measurement setup files. 4. Select Save to save the measurement settings. 2- 55 VM Series Video Measurement System User Manual...

  • Page 112: Recalling Measurement Settings

    2. The application displays the Option SD/HD Recall dialog box and lists all the instrument setting files present in the default directory Option SD/HD default directory: C:\VMApps\OptHDSD Option VGA Option VGA default directory: C:\VMApps\OptVGA. 2- 56 VM Series Video Measurement System User Manual...
  • Page 113 4. Select a file from those listed. 5. Enter a file name in the File name box or select a file from the list. 6. Select Open to load the settings file and configure the instrument. 2- 57 VM Series Video Measurement System User Manual...

  • Page 114: Saving Measurement Results (Reports)

    2. The instrument displays the Option SD/HD Utilities: Generate Report view. Option VGA 3. Select a report format. Which format you to select depends on what you want to do with the measurement results. 2- 58 VM Series Video Measurement System User Manual...
  • Page 115 When Multi Lines is selected, the Generate button in the Utilities > Generate Report is not selectable. 6. Use the Measurements option to select which measurements to save to a report. 2- 59 VM Series Video Measurement System User Manual...
  • Page 116 When the application is started for the first time after installation, the View button is not selectable and the Recent Reports pane will not have any report files listed. 2- 60 VM Series Video Measurement System User Manual...

  • Page 117: Reference

    Reference...

  • Page 119: Reference Overview

    Reference & Limits Sets the Reference and the Limit Testing related options. Picture and Vectorscope (Option SD/HD) Sets the settings related to the Picture and vectorscope display of the video signal. 3- 1 VM Series Video Measurement System User Manual...
  • Page 120 3- - 32 manually generate reports to a specified file format. Help Help Topics Opens the VM Series online help system. 3- - 33 About VM HD and SD... (Option SD/HD) Displays the application version number. About VM VGA... (Option VGA) Displays the application version number.

  • Page 121: Menu Descriptions

    Menu Item Function Setting or field Description Recall Default VM Series recalls (loads) and applies the default settings of the application. Setup Recall Setup... Recalls (loads) and applies application settings that have been previously saved on the hard disk. Look in Drop-down menu Specifies the directory listed in the File list area.
  • Page 122 (as set by Look in) and file name (as entered in the File name field) as file type .vmset. Minimize Minimizes the application to the Windows task bar. Exit Opens the application Exit dialog box. 3- 4 VM Series Video Measurement System User Manual...

  • Page 123: Configuration Menu

    Recalling a setup file changes the configuration; current measurements will stop and results appear as dashes. CAUTION. To avoid losing unsaved measurement results, generate a report before changing any configuration parameters other than selecting measurements or turning warnings on or off. 3- 5 VM Series Video Measurement System User Manual...
  • Page 124 List box Lists the User Defined Formats available. Creates a new User Defined Format. Edit Modifies the selected User Defined Format. Delete Deletes the selected User Defined Format. 3- 6 VM Series Video Measurement System User Manual...
  • Page 125 Select Stop to stop measurements. Once & Report The application takes each selected measurement the number of times determined by the averaging setting, then stops taking measurements and generates a report. 3- 7 VM Series Video Measurement System User Manual...
  • Page 126 Note the start line number should be less than or equal to the end line number. End Line Sets the end line number for the Channel Delay measurement. Note the end line number should be greater than or equal to the start line number. 3- 8 VM Series Video Measurement System User Manual...
  • Page 127 Note the start line number should be less than or equal to the end line number. End Line Sets the end line number for the Non Linearity measurement. Note the end line number should be greater than or equal to the start line number. 3- 9 VM Series Video Measurement System User Manual...
  • Page 128 LogOld.txt file, you must save the file under a different name before it is overwritten. If Pop Up Warning Details is selected, then a message box appears on the screen. To avoid interruptions to your testing, clear all the Warning reporting. 3- 10 VM Series Video Measurement System User Manual...
  • Page 129 This is a fast and easy way to create a reference file. Reference Reference Default Select Default to automatically load the Tektronix reference file. Selection The only valid entry is .csv. The actual file can be a text file if it is formatted as a comma- - separated- - value file.
  • Page 130 Results window. CAUTION. To avoid losing unsaved measurement results, generate a report before you change any configuration parameters other than selecting measurements or turning warnings on or off. 3- 12 VM Series Video Measurement System User Manual...
  • Page 131 List box Lists the User Defined Formats available. Creates a new User Defined Format. Edit Modifies the selected User Defined Format. Delete Deletes the selected User Defined Format. 3- 13 VM Series Video Measurement System User Manual...
  • Page 132 Select Stop to stop measurements. Once & Report The application takes each selected measurement the number of times determined by the averaging setting, then stops taking measurements and generates a report. 3- 14 VM Series Video Measurement System User Manual...
  • Page 133 Note the start line number should be less than or equal to the end line number. End Line Sets the end line number for the Ch-Ch Skew measurement. Note the end line number should be greater than or equal to the start line number. 3- 15 VM Series Video Measurement System User Manual...
  • Page 134 Command Function Setting or field Description Operation RGBHV MIU Use MIU Uses the RGBHV Measurement Interface Unit accessory. Sync Polarity Auto Detect Automatically detects the V Sync polarity. 3- 16 VM Series Video Measurement System User Manual...
  • Page 135 LogOld.txt file, you must save the file under a different name before it is overwritten. If Pop Up Warning Details is selected, then a message box appears on the screen. To avoid interruptions to your testing, clear all the Warning reporting. 3- 17 VM Series Video Measurement System User Manual...
  • Page 136 Reference Default Select Default to automatically load the Tektronix reference file. Selection The only valid entry is .csv. The actual file can be a text file if it is formatted as a comma- - separated- - value file.

  • Page 137: Results Menu

    When the format Auto Detect is selected or a valid format is not available, the Line Number is disabled. Average: 1 Sets the number of acquisitions over which to calculate an average measurement value. 3- 19 VM Series Video Measurement System User Manual...
  • Page 138 CH1 and half that frequency for CH2 and CH3. This setting is the best option for YPbPr signals. When the format Auto Detect is selected or a valid format is not available, the Meas Location is disabled. 3- 20 VM Series Video Measurement System User Manual...
  • Page 139 Sets the Input type to Probability. Probability Allows the user to set the probability when the input type selected is probability. Demarc Freq Jitter (Hz) Allows you to set the jitter demarcation frequency 3- 21 VM Series Video Measurement System User Manual...
  • Page 140 Format, and assumes that the appropriate Matrix image file is being used to generate the test signal. When the format Auto Detect is selected or a valid format is not available, the Line Number is disabled. 3- 22 VM Series Video Measurement System User Manual...

  • Page 141: Options 1

    When the format Auto Detect is selected or a valid format is not available, the Cursor is disabled. Displays the noise in mV on each of the three channels Displays the noise in dB on each of the three channels 3- 23 VM Series Video Measurement System User Manual...
  • Page 142 Displays the noise measurement results on each of the three channels in dB (relative to peak white) and mV. Results are reported on the Measured tab, and if enabled, on the Relative, Reference, and Limits tabs. 3- 24 VM Series Video Measurement System User Manual...
  • Page 143 Distortion Results Undershoot (%), Settling Rise (ns), and Settling Fall (ns) of the video signal. Results are reported on the Measured tab, and if enabled, on the Relative, Reference, and Limits tabs. 3- 25 VM Series Video Measurement System User Manual...
  • Page 144 Sets the number of measurements acquisitions over which to calculate the average measurement value. Select BMP Ref Default Selects the default Tektronix reference file to perform the Spatial File Distortion measurement. Manual Uses your own 24 bit BMP reference file which is selected by clicking the Browse to perform the Spatial Distortion measure- ment.
  • Page 145 B to R channels of the video signal values in (mV) and in (%)Peak- - Peak. Results are reported on the Measured tab, and if enabled, on the Relative, Reference, and Limits tabs. 3- 27 VM Series Video Measurement System User Manual...
  • Page 146 Monotonic Fall (Y/N), Logic Level “1” (mV) @2.21 kΩ and ±8 mA, and Logic Level “0” (mV) @2.21 kΩ and ±8 mA. Results are reported on the Measured tab, and if enabled, on the Relative, Reference, and Limits tabs. 3- 28 VM Series Video Measurement System User Manual...
  • Page 147 Max DNL (LSB), @ Step No, Monotonic (Y/N), and @ Step No on the G, B, and R channels. Results are reported on the Measured tab, and if enabled, on the Relative, Reference, and Limits tabs. 3- 29 VM Series Video Measurement System User Manual...
  • Page 148 Monotonic Fall (Y/N), Logic Level “1” (mV) @2.2k and ±8 mA, and Logic Level “0” (mV) @2.2k and ±8 mA. Results are reported on the Measured tab, and if enabled, on the Relative, Reference, and Limits tabs. 3- 30 VM Series Video Measurement System User Manual...
  • Page 149 Undershoot (%), Overshoot Settling Time (ns), and Undershoot Settling Time (ns) on the G, B, and R channels. Results are reported on the Measured tab, and if enabled, on the Relative, Reference, and Limits tabs. 3- 31 VM Series Video Measurement System User Manual...

  • Page 150: Utilities Menu

    Creates a report with only the measurements that are currently selected in the Configuration > Measurements screen. Recent Reports View Displays the recent report files in the Recent Reports panel when you click View. 3- 32 VM Series Video Measurement System User Manual...

  • Page 151: Help Menu

    Help Menu Command Function Help Topics Opens the VM Series online help window that provides you with application information on your instrument screen. About VM HD Displays a VM Series dialog that contains the application software version number. and SD Video...
  • Page 152 Menu Descriptions 3- 34 VM Series Video Measurement System User Manual...

  • Page 153: Option Sd/Hd Detailed Measurement Information

    The instrument averages results, not input waveforms. (If, on the other hand, the Noise waveforms were averaged instead of the Noise results, the noise results would appear lower than they should. Because of the instrument average results, this problem is avoided.) 3- 35 VM Series Video Measurement System User Manual...

  • Page 154: Channel Delay

    (as in some live program material, for example). Loop delay greater than 5ns will generate a warning if warnings are enabled. 3- 36 VM Series Video Measurement System User Manual...

  • Page 155: Color Bars

    For example, if a manual setup is performed, not only are all eight bars required on the waveform display, but the entire horizontal blanking area to the right of the 3- 37 VM Series Video Measurement System User Manual...

  • Page 156: Frequency Response

    H The frequency is measured at the specified time if time is selected; otherwise the specified frequency is found and displayed in MHz. H The time is measured at the specified frequency if frequency is selected; otherwise the input time is displayed in s. 3- 38 VM Series Video Measurement System User Manual...
  • Page 157 RMS Distortion: Result = RMS distortion measured - - RMS distortion reference The Relative to Reference values for the % display are calculated as follows: measured frequency reference frequency Frequency reference frequency 3- 39 VM Series Video Measurement System User Manual...
  • Page 158 Amplitude = Amplitude of signal at the time or frequency input measured amplitude 20 log Result measured flag amplitude Amplitude (note that attenuated signals give results in -dB) RMS correlated distortion amplitude Result RMS signal amplitude 3- 40 VM Series Video Measurement System User Manual...

  • Page 159: H Sync

    In this case, the measurement of the respective porch widths will not be valid. The Sync relative to reference value is calculated as follows: (measured value Result reference value) 3- 41 VM Series Video Measurement System User Manual...

  • Page 160: H Sync Jitter

    Freq Drift Rate (ppm/s) field for both minimum and maximum values. Signal Source The test signal used for the H Sync Jitter measurement is the Tektronix Matrix pattern. Interpreting Results When the reported Probability is low, it means that the chances of jitter exceeding the set positive peak or negative peak value is less.

  • Page 161: Levels

    Interpreting Results The default reference and limit values provided serve as a template. This template needs to be edited for the reference and the limit values to match the input pattern. 3- 43 VM Series Video Measurement System User Manual...

  • Page 162: Multiburst

    In many consumer set-top boxes, lack of a reconstruction filter (with out-of-band rejection plus sin(x)/x correction) leads to roll-off in the fundamental frequency component of the bursts even though the envelope of the bursts may be flat on 3- 44 VM Series Video Measurement System User Manual...

  • Page 163: Noise

    The unified weighting filter has been modified to exactly match the ‘visibility of noise characteristics’ of 576- -2 on the screen for each selected video format. 3- 45 VM Series Video Measurement System User Manual...

  • Page 164: Non Linearity

    A T rise time bar has a 10% to 90% rise time of nominally 100 ns. Many common test signals have 2T 3- 46 VM Series Video Measurement System User Manual...
  • Page 165 The Short Time Distortion relative to reference value is calculated as follows: (measured value Result reference value) 3- 47 VM Series Video Measurement System User Manual...

  • Page 166: Spatial Distortion

    Signal Source Spatial distortion can be measured using the default image test signal Tektronix provides the by selecting the Default option in the Select BMP Ref File pane. You can also use your own image test signal and provide the 24-bit BMP reference file by selecting the Manual option in the Select BMP Ref File pane.

  • Page 167: Spatial Distortion Both In Horizontal And Vertical Dimensions 3

    Spatial distortion measurement is performed as shown in Figure 3- -2 and Figure 3- -3. Figure 3- 2: Block diagram for measuring video spatial distortion both in horizontal and vertical dimensions 3- 49 VM Series Video Measurement System User Manual...

  • Page 168: Alignment Measurement 3

    2. Rescale each larger dimension of the two images (active reference image and active test image) to match the smaller of the two. The result is two images 3- 50 VM Series Video Measurement System User Manual...
  • Page 169 IIR LPF operation. Whereas the Pearson’s correlation coefficient is calculated as the covariance divided by the square root of the product of test and reference variances, the LPCCC is calculated for each 3- 51 VM Series Video Measurement System User Manual...
  • Page 170 For each LPCCC(x,y), map to Hough Transform [Theta, R] for each Theta (parameterized using the Theta increment index ThetaAngleBin): Π * ThetaAngleBin ThetaIndexMax Theta x * cos(Theta) y * sin(Theta) 3- 52 VM Series Video Measurement System User Manual...
  • Page 171 9. The crude and refined offsets and scale values are combined to give total horizontal and vertical scale and offset values. Likewise the blanking or border measurements can be used in combination with the refined measurements to give cropping measurements. 3- 53 VM Series Video Measurement System User Manual...

  • Page 172: Table 3- 2: Scanning Systems For Sd In Accordance With The Eia- 770.2-A Standard

    Serration pulses are the pulses that occur during the vertical sync interval, at twice the normal horizontal scan rate. These pulses ensure correct 2:1 interlacing and eliminate the buildup of DC offset. 3- 54 VM Series Video Measurement System User Manual...

  • Page 173: Table 3- 3: Scanning Systems For Hd In Accordance With The Eia-770.3-A Standard High Definition Tv Analog Component Video Interface

    For the video format SD with interlaced scanning, each field is divided into an Calculated active picture area and a vertical blanking interval. The vertical blanking for the Y luminance signal contains the vertical synchronizing information surrounded 3- 55 VM Series Video Measurement System User Manual...
  • Page 174 The vertical blanking interval for the Y luminance signal contains the vertical synchronizing information surrounded by blanking periods to properly position the vertical sync. 3- 56 VM Series Video Measurement System User Manual...

  • Page 175: Option Vga Detailed Measurement Information

    Readme.txt files on the Signal Source Set for extensive information about the files provided. When using Tektronix supplied matrix test signals, if a .vmset file is provided for that format of matrix test signal, be sure to use the default line numbers in the associated .vmset file (File >...

  • Page 176: Ch-Ch Mismatch Measurement

    The results are reported as a percentage by dividing the calculated result by Vmax steady state (typically 700 mV). 3- 58 VM Series Video Measurement System User Manual...

  • Page 177: Ch-Ch Skew Measurement

    Delay1 - - Delay2 + Delay3 = 0, where Delay1 is between channels G to B Delay2 is between channels G to R Delay3 is between channels B to R 3- 59 VM Series Video Measurement System User Manual...

  • Page 178: Color Bars Measurement

    The amplitudes are calculated using waveform averaged values within each identified bar relative to the back porch. Thus, it is important to ensure that the 3- 60 VM Series Video Measurement System User Manual...

  • Page 179: H Sync Measurement

    Figure 3- -4. Amplitude Vmax Vmax steady state Vmin steady state VMin Time Figure 3- 4: Signal definitions (H Sync) 3- 61 VM Series Video Measurement System User Manual...
  • Page 180 CD-ROM). Interpreting Results Horizontal Sync polarity is detected by looking at the signal level after skipping a nominal pulse width duration. It is considered to be positive if the signal level 3- 62 VM Series Video Measurement System User Manual...
  • Page 181 H When the H Sync signal or channel is connected to a current source of ±8 mA (+8 mA is connected when H Sync level is high, - -8 mA when H Sync level is low) 3- 63 VM Series Video Measurement System User Manual...

  • Page 182: H Sync Jitter Measurement

    Matrix signal, which is located on the Test Signal Files CD-ROM. Interpreting Results A low numeric value of the H Sync jitter indicates a higher quality of incoming signal. 3- 64 VM Series Video Measurement System User Manual...

  • Page 183: H Timing Measurement

    If you plan to take only H Timing measurements, use a Black White Black Full Field test pattern. Select the bitmap file that matches the format and the refresh 3- 65 VM Series Video Measurement System User Manual...

  • Page 184: Linearity Measurement

    Monotonicity is the property whether or not the video signal is continuously rising or falling without any inflection points. Monotonicity is decided by determining the progression of the successive gray levels. 3- 66 VM Series Video Measurement System User Manual...
  • Page 185 Voltage amplitude of 255th step Voltage amplitude of 0th step Normalized Differential Linearity Error is calculated as follows: V actvalnstep V actvalnprestep NormDiffLinErr LSBc where NormDiffLinErr is the Normalized Differential Linearity Error 3- 67 VM Series Video Measurement System User Manual...

  • Page 186: Luma Levels Measurement

    100,000 points between the 20% and 80% regions of the addressable video range. The selected line from consecutive frames will be used to get the required number of points. The maximum and minimum amplitude values are shown as the result. 3- 68 VM Series Video Measurement System User Manual...

  • Page 187: Noise Inj Ratio Measurement

    You can also use a Matrix signal as a test signal. For more information on the Matrix signal refer to page 2- -21. For example, use the 640x480- -Matrix.bmp file to test a 640x480 resolution format. 3- 69 VM Series Video Measurement System User Manual...

  • Page 188: Figure 3- -7: Voltage Ripple And Noise 3

    NF is the peak to peak fluctuation observed with oscilloscope channel coupling set to ground Noise amplitude (mV) Injection ratio (%) Vsignal amplitude The signal-to-noise ratio in dB is calculated using the average signal amplitude. 3- 70 VM Series Video Measurement System User Manual...

  • Page 189: Sync Measurement

    Rise time is measured from the 10% to the 90% amplitude points of a positive- going transition. 3- 71 VM Series Video Measurement System User Manual...
  • Page 190 The overshoot and undershoot amplitude, and settling time should be zero under ideal conditions. When V Sync monotonicity is Yes in the results panel, it indicates that the incoming signal does not change its polarity during the rise/fall period. 3- 72 VM Series Video Measurement System User Manual...
  • Page 191 90% of the steady state level. Overshoot/Undershoot settling time is the time taken for the signal to reach 5% of its steady state value. V Sync frequency is derived from pulse time value. 3- 73 VM Series Video Measurement System User Manual...

  • Page 192: Timing Measurement

    Beginning five lines before the first addressable line (as per the standard), 15 lines are scanned to detect the first addressable line. With the start of addressable video, the scan begins again at five lines before the nominal end of the address- 3- 74 VM Series Video Measurement System User Manual...

  • Page 193: Video Transient Measurement

    Rise time is measured from the 10% to the 90% amplitude points of a positive-going transition. Fall time is measured from the 90% to the 10% amplitude points of a negative-going transition. 3- 75 VM Series Video Measurement System User Manual...
  • Page 194 Rise time is the time taken for the signal to rise from 10% to 90% of steady state level. Overshoot/Undershoot settling time is the time taken for the signal to reach 5% of its steady state value. 3- 76 VM Series Video Measurement System User Manual...

  • Page 195: Setting Up Measurements 3

    Setting Up Measurements There are three ways to set up the VM Series System to take measurements: taking measurements, taking measurements relative to a reference, and taking measurements with limit testing. The differences between the three ways of taking measurements are: H Taking measurements displays only the results of the measurements.

  • Page 196: Taking Measurements Relative To A Reference 3

    Option VGA: Select the appropriate resolution, the refresh rate, and the timing standard for the input signal. 2. Select one or more measurements to take. 3. Set the measurement run operation. 4. Select Configuration > Reference & Limits. 3- 78 VM Series Video Measurement System User Manual...

  • Page 197: Figure 3- -11: Enabling Relative To Reference Results 3

    7. After you have selected the reference file, click the Run button to take and view the measurements. 8. View the measurement results by selecting the corresponding menu item in the results panel of the measurement. 3- 79 VM Series Video Measurement System User Manual...

  • Page 198: Creating A Custom Reference File 3

    Reference files are used as the source of comparison for calculating the Relative to Reference values for the measurements. The VM Series System includes a set of reference files that you can use as a starting point to create reference files to suit your needs.

  • Page 199: Table 3- 4: Elements Of The Reference File

    Option VGA: There is a different file for each signal resolution, refresh rate, and timing standard. The reference files are saved in CSV format. The VM Series includes a set of default reference files and you can create your own reference file. Reference values for all measurements are in one file.

  • Page 200: Taking Measurements With Limit Testing 3

    Option VGA: Select the appropriate resolution, the refresh rate, and the timing standard for the input signal. 2. Select one or more measurements to take. 3. Set the measurement run operation. 4. Select Configuration > Reference & Limits. 3- 82 VM Series Video Measurement System User Manual...

  • Page 201: Figure 3- -15: Enabling Limit Testing 3

    8. View the measurement results by selecting the corresponding menu item in the results panel of the measurement. See Figure 3- -16. Note that you can select the Limits tab Figure 3- 16: Results when limit testing is available 3- 83 VM Series Video Measurement System User Manual...

  • Page 202: Customizing A Limits File 3

    Limits files are used as the source of comparison for Limit Testing measurements. The VM Series includes a set of limits files which you can use as a starting point to create limits files to suit your needs. There is a different file for each signal (Option SD/HD) format and color space or (Option VGA) resolution, refresh rate, and timing standard.

  • Page 203: Setting Up The Channel Delay Measurement 3

    H Click the keypad button to the left of the number entry box. Use the pop-up keypad to enter a setting for the line number. H Use the keyboard to directly input the desired value. 3- 85 VM Series Video Measurement System User Manual...

  • Page 204: Setting Up The Color Bars Measurement 3

    To change the settings for the Color Bars measurements: 1. Select Results > Color Bars. 2. To change the setting for Line Number, click the Line Number box. 3- 86 VM Series Video Measurement System User Manual...
  • Page 205 H Click the keypad button to the left of the number entry box. Use the pop-up keypad to enter a setting for the line number. H Using the keyboard to directly input the desired value. 3- 87 VM Series Video Measurement System User Manual...

  • Page 206: Setting Up The Frequency Response Measurement 3

    Frequency or Time, specify a value, and set the filter band- width frequency. To change the settings for the Frequency Response measurements: 1. Select Results > Frequency Response. 3- 88 VM Series Video Measurement System User Manual...
  • Page 207 H Using the keyboard to directly input the desired value. When Meas Location is set to Freq 4:4:4, the measurement uses the same frequency for the measurement location on all three signals (CH1 (Y/G), CH2 (Pb/B), and CH3 (Pr/R)). 3- 89 VM Series Video Measurement System User Manual...
  • Page 208 H Use the keyboard to directly input the desired value. When Meas Location is set to Time, the measurement reports the waveform frequency at that specified time. 3- 90 VM Series Video Measurement System User Manual...

  • Page 209: Setting Up The H Sync Measurement 3

    The results panel for the measurement shows the settings that can be changed for the measurement. For H Sync, you can choose the line on which the measurement is made and the number of times the measurement is averaged. 3- 91 VM Series Video Measurement System User Manual...
  • Page 210 Select the Measured on CH1 check box to take the measurements on channel CH1 for better measurement accuracy. This option is available only if triggering on CH4, which is the default. 3- 92 VM Series Video Measurement System User Manual...

  • Page 211: Setting Up The H Sync Jitter Measurement 3

    Use the pop-up keypad to enter the new value for the line number. H Use the keyboard to directly input the desired value. 3. Click the Average box to change the number of times the measurement is averaged. 3- 93 VM Series Video Measurement System User Manual...
  • Page 212 H Use the keyboard to directly input the desired value. When Input is set to Probability, you can specify the probability in the Probability field to estimate the actual peak jitter value measured. 3- 94 VM Series Video Measurement System User Manual...
  • Page 213 H Use the keyboard to directly input the desired value. Click the Wander (Hz) box in the Demarc Freq panel to change the Wander demarcation frequency. 3- 95 VM Series Video Measurement System User Manual...

  • Page 214: Setting Up The Levels Measurement 3

    H Click the keypad button to the left of the number entry box. Use the pop-up keypad to enter a setting for the line number. H Use the keyboard to directly input the desired value. 3- 96 VM Series Video Measurement System User Manual...
  • Page 215 The Levels Configuration dialog box is shown in the following figure: You can change the level name by using the keyboard to directly input the desired value for the selected level (which is highlighted). 3- 97 VM Series Video Measurement System User Manual...

  • Page 216: Setting Up The Multiburst Measurement 3

    H Click the keypad button to the left of the number entry box. Use the keypad to enter a setting for the line number. H Use the keyboard to directly input the desired value. 3- 98 VM Series Video Measurement System User Manual...

  • Page 217: Setting Up The Noise Measurement 3

    You can specify the filter type and the cut- -off frequency of bandwidth filter, and configure the Set Time Window. To change settings for the Noise measurements: 1. Select Results > Noise. 2. To change the setting for Line Number, click the Line Number box. 3- 99 VM Series Video Measurement System User Manual...

  • Page 218: Figure 3- -18: Changing The Filter Type 3

    H Use the keyboard to directly input the desired value. 4. To change the Filter type and the cut- -off frequency of the bandwidth filter. Refer to Figure 3- -18. Figure 3- 18: Changing the filter type 3- 100 VM Series Video Measurement System User Manual...

  • Page 219: Figure 3- -19: Changing The Noise Filter Bandwidth Frequency 3

    H Use the keyboard to directly input the desired value. 5. To set the start and end position, click the Set Time Window button. 3- 101 VM Series Video Measurement System User Manual...

  • Page 220: Setting Up The Noise Spectrum Measurement 3

    The results panel for the measurement shows the settings that can be changed for the measurement. For noise spectrum, you can choose the Cursor and select a channel (Y/G, Pb/B, or Pr/R). 3- 102 VM Series Video Measurement System User Manual...

  • Page 221: Figure 3- -20: Changing The Cursor Frequency 3

    4. Select one of the channels (Y/G, Pb/B, or Pr/R) in the list box to change the channel for the noise spectrum measurement. Refer to Figure 3- -21. Figure 3- 21: Changing the channel 3- 103 VM Series Video Measurement System User Manual...

  • Page 222: Setting Up The Non Linearity Measurement 3

    H Click the keypad button to the left of the number entry box. Use the pop-up keypad to enter a setting for the line number. H Use the keyboard to directly input the desired value. 3- 104 VM Series Video Measurement System User Manual...

  • Page 223: Setting Up The Short Time Distortion Measurement 3

    To change the settings for the Short Time Distortion measurements: 1. Select Results > Short Time Distortion. 2. To change the setting for Line Number, click the Line Number box. 3- 105 VM Series Video Measurement System User Manual...

  • Page 224: Setting Up The Spatial Distortion Measurement 3

    The results panel for the measurement shows the settings that can be changed for the measurement. For Spatial Distortion, you can choose the number of times the measurement is averaged. 3- 106 VM Series Video Measurement System User Manual...
  • Page 225 H Selecting the Default option in the Select BMP Ref File panel, you can use the Tektronix reference file to run the Spatial Distortion measurement. H Selecting the Manual option in the Select BMP Ref File panel, you can use your own image test signal provide the 24-bitmap reference file.

  • Page 226: Setting Up The V Sync Measurement 3

    To perform measurements on the DUT, you must provide an appropriate video signal to the VM Series System. You can accomplish this by displaying a bitmap file on the PC in which the DUT is operating. The preferred bitmap file, when taking multiple measurements, is the Matrix signal.

  • Page 227: Table 3- 5: Matching Measurements To The Appropriate Full Field Test Pattern

    This displays the bmp file in full screen mode without any borders (applied for Single Monitor mode). 3- 109 VM Series Video Measurement System User Manual...

  • Page 228: Figure 3- -22: Illustration Of The Bmp Test Signal In Full Screen Mode 3

    Figure 3- 23: Illustration of the BMP image set as wallpaper 6. Disconnect the output of the DUT from the monitor and connect the output of the DUT to the VM Series System. 3- 110 VM Series Video Measurement System User Manual...

  • Page 229: Setting Up The Ch- - Ch Mismatch Measurement 3

    To change the settings for the Ch- -Ch Mismatch measurements: 1. Click Results > Ch- -Ch Mismatch. 2. To change the line number, click the Line Number box. 3- 111 VM Series Video Measurement System User Manual...

  • Page 230: Setting Up The Ch- - Ch Skew Measurement 3

    For Ch- -Ch Skew, you can choose the line on which the measurement is made and the number of times the measurement is averaged. 3- 112 VM Series Video Measurement System User Manual...
  • Page 231 H Use the keyboard to directly input the desired value. The next time the Ch- -Ch Skew measurement is run, it will run with the newly entered numbers. 3- 113 VM Series Video Measurement System User Manual...

  • Page 232: Setting Up The Color Bars Measurement 3

    H Click the keypad button to the left of the number entry box. Use the pop-up keypad to enter a setting for the number of averages to perform. H Use the keyboard to directly input the desired value. 3- 114 VM Series Video Measurement System User Manual...

  • Page 233: Setting Up The H Sync Measurement 3

    H Turn the top knob on the front panel to change the number of averages. When it is set to the correct number, click outside the box to enter the change. 3- 115 VM Series Video Measurement System User Manual...

  • Page 234: Setting Up The H Sync Jitter Measurement 3

    Use the pop-up keypad to enter the new value for the line number. H Use the keyboard to directly input the desired value. The next time the H Sync Jitter measurement is run, it will run with the newly entered numbers. 3- 116 VM Series Video Measurement System User Manual...

  • Page 235: Setting Up The H Timing Measurement 3

    H Click the keypad button to the left of the number entry box. Use the pop-up keypad to enter a setting for the number of averages to perform. H Use the keyboard to directly input the desired value. 3- 117 VM Series Video Measurement System User Manual...

  • Page 236: Setting Up The Linearity Measurement 3

    H Turn the top knob on the front panel to change the number of averages. When it is set to the correct number, click outside the box to enter the change. 3- 118 VM Series Video Measurement System User Manual...

  • Page 237: Setting Up The Luma Levels Measurement 3

    H Use the keyboard to directly input the desired value. 3. Click the Average box to change the number of times the measurement is averaged. 3- 119 VM Series Video Measurement System User Manual...

  • Page 238: Setting Up The Noise Inj Ratio Measurement 3

    H Click the keypad button to the left of the number entry box. Use the pop-up keypad to enter a setting for the line number. H Use the keyboard to directly input the desired value. 3- 120 VM Series Video Measurement System User Manual...

  • Page 239: Setting Up The V Sync Measurement 3

    The results panel for the measurement shows the settings that you can change for the measurement. For V Sync, you can choose the number of times the measurement is averaged. 3- 121 VM Series Video Measurement System User Manual...

  • Page 240: Setting Up The V Timing Measurement 3

    To change the settings for the V Timing measurement: 1. On the menu bar, click Results > V Timing. 2. Click the Average box to change the number of times the measurement is averaged. 3- 122 VM Series Video Measurement System User Manual...

  • Page 241: Setting Up The Video Transient Measurement 3

    H Click the keypad button to the left of the number entry box. Use the pop-up keypad to enter a setting for the line number. H Use the keyboard to directly input the desired value. 3- 123 VM Series Video Measurement System User Manual...
  • Page 242 H Use the keyboard to directly input the desired value. The next time the Video Transient measurement is run, it will run with the newly entered numbers. 3- 124 VM Series Video Measurement System User Manual...

  • Page 243: Viewing Measurement Results 3

    Refer to Figure 3- -24 for Option SD/HD. Refer to Figure 3- -25 for Option VGA. Figure 3- 24: Displaying the results summary (Option SD/HD) Figure 3- 25: Displaying the results summary (Option VGA) 3- 125 VM Series Video Measurement System User Manual...

  • Page 244: Table 3- 6: Status Box Indicators In Results Summary Pane

    Table 3- 7: Warning Box Indicators in Results Summary pane Warning box Description - -- -- - (gray) No warnings; no measurements taken - -- -- - (white) Measurements completed with no warnings Measurements completed with warnings 3- 126 VM Series Video Measurement System User Manual...

  • Page 245: Displaying Channel Delay Measurement Results 3

    3- -82), you can display the Limit values by clicking the Limits tab. The minimum and maximum values are set in the limits file for each signal format and color space. 3- 127 VM Series Video Measurement System User Manual...

  • Page 246: Displaying Color Bars Measurement Results 3

    Relative Values If Relative to Reference testing is enabled (see Taking Measurements Relative to a Reference on page 3- -78), you can display the calculated relative values by clicking the Relative tab. 3- 128 VM Series Video Measurement System User Manual...

  • Page 247: Figure 3- -29: Displaying Limit Values For The Color Bars Measurement 3

    Figure 3- 29: Displaying limit values for the Color Bars measurement Additional Units The only additional unit available in the Results panel for the Color Bars measurement is % under the Relative tab. 3- 129 VM Series Video Measurement System User Manual...

  • Page 248: Displaying Frequency Response Measurement Results 3

    3- -82), you can display the Limit values by clicking the Limits tab. The minimum and maximum values are set in the limits file for each signal format and color space. 3- 130 VM Series Video Measurement System User Manual...

  • Page 249: Displaying H Sync Measurement Results 3

    Configure the H Sync measurements as explained in Setting Up the H Sync Measurement on page 3- -91. Take the measurement by clicking the Run button. Refer to Figure 3- -33. 3- 131 VM Series Video Measurement System User Manual...

  • Page 250: Figure 3- -33: Displaying The H Sync Measurement 3

    Select the min option to display the minimum values. Select the max option to display the maximum values. Refer to Figure 3- -34. Figure 3- 34: Displaying limit values for the H Sync measurement 3- 132 VM Series Video Measurement System User Manual...

  • Page 251: Displaying H Sync Jitter Measurement Results 3

    Select the min option to display the minimum values. Select the max option to display the maximum values. Refer to Figure 3- -36. 3- 133 VM Series Video Measurement System User Manual...

  • Page 252: Displaying Levels Measurement Results 3

    If Relative to Reference testing is enabled you can display the reference values by clicking the Reference tab (To create a custom reference file, see Creating a Custom Reference File, on page 3- -80). 3- 134 VM Series Video Measurement System User Manual...

  • Page 253: Displaying Multiburst Measurement Results 3

    Relative Values If Relative to Reference testing is enabled (see Taking Measurements Relative to a Reference, on page 3- -78), you can display the calculated relative values by clicking the Relative tab. 3- 135 VM Series Video Measurement System User Manual...

  • Page 254: Displaying Noise Measurement Results 3

    Configure the Noise measurements as explained in Setting Up the Noise Measurement on page 3- -99. Take the measurement by clicking the Run button. Click Results > Noise. Refer to Figure 3- -41. 3- 136 VM Series Video Measurement System User Manual...

  • Page 255: Figure 3- -41: Displaying The Noise Measurement 3

    Select the min option to display the minimum amplitude level values. Select the max option to display the maximum amplitude level values. Refer to Figure 3- -42. Figure 3- 42: Displaying limit values for the Noise measurement 3- 137 VM Series Video Measurement System User Manual...

  • Page 256: Displaying Non Linearity Measurement Results 3

    Run button. Refer to Figure 3- -43. Figure 3- 43: Displaying the Noise Spectrum measurement Click the Spectrum box to get the noise spectrum display on the VM Series System Video Monitor. Refer to Figure 3- -44. Figure 3- 44: Displaying the Noise Spectrum on the VM Series video monitor...

  • Page 257: Figure 3- -45: Displaying The Non Linearity Measurement 3

    Select the min option to display the minimum Non Linearity values. Select the max option to display the maximum Non Linearity values. Refer to Figure 3- -46. Figure 3- 46: Displaying limit values for the Non Linearity measurement 3- 139 VM Series Video Measurement System User Manual...

  • Page 258: Displaying Short Time Distortion Measurement Results 3

    If Limit testing is enabled, you can display the Limit values by clicking the Limits tab (see Taking Measurements with Limit Testing, on page 3- -82). The minimum and maximum values are set in the limits file for each signal format and color space. 3- 140 VM Series Video Measurement System User Manual...

  • Page 259: Displaying Spatial Distortion Measurement Results 3

    Relative Values If Relative to Reference testing is enabled (see Taking Measurements Relative to a Reference, on page 3- -78), you can display the calculated relative values by clicking the Relative tab. 3- 141 VM Series Video Measurement System User Manual...

  • Page 260: Displaying V Sync Measurement Results 3

    Measurement on page 3- -91. Take the measurement by clicking the Run button. Refer to Figure 3- -51 through Figure 3- -54. Figure 3- 51: Displaying the V Sync measurement for SD Interlaced format 3- 142 VM Series Video Measurement System User Manual...

  • Page 261: Figure 3- -52: Displaying The V Sync Measurement For Sd Progressive Format 3

    Relative Values If Relative to Reference testing is enabled (see Taking Measurements Relative to a Reference, on page 3- -78), you can display the calculated relative values by clicking the Relative tab. 3- 143 VM Series Video Measurement System User Manual...

  • Page 262: Figure 3- -55: Displaying Limit Values For The V Sync Measurement For Sd Interlaced Format 3

    Figure 3- -58. Figure 3- 55: Displaying limit values for the V Sync measurement for SD Interlaced format Figure 3- 56: Displaying limit values for the V Sync measurement for SD Progressive format 3- 144 VM Series Video Measurement System User Manual...

  • Page 263: V Sync Measurement For Hd Interlaced Format 3

    Viewing Measurement Results Figure 3- 57: Displaying limit values for the V Sync measurement for HD Interlaced format Figure 3- 58: Displaying limit values for the V Sync measurement for HD Progressive format 3- 145 VM Series Video Measurement System User Manual...

  • Page 264: Displaying Ch-Ch Mismatch Measurement Results 3

    Select the min option to display the minimum limit values. 3- 146 VM Series Video Measurement System User Manual...

  • Page 265: Displaying Ch-Ch Skew Measurement Results 3

    Relative Values If Relative to Reference testing is enabled, you can display the calculated relative values by clicking the Relative tab (see Taking Measurements Relative to a Reference on page 3- -78). 3- 147 VM Series Video Measurement System User Manual...

  • Page 266: Displaying Color Bars Measurement Results 3

    Bars Measurements on page 3- -114. Take the measurement by clicking the Run button. Click Results > Color Bars. Refer to Figure 3- -63. Figure 3- 63: Color Bars measurement results 3- 148 VM Series Video Measurement System User Manual...

  • Page 267: Figure 3- -64: Limit Values For The Color Bars Measurement 3

    Figure 3- 64: Limit values for the Color Bars measurement Additional Units The only additional unit available in the Results window for the Color Bars measurement is % in the Relative tab. 3- 149 VM Series Video Measurement System User Manual...

  • Page 268: Displaying H Sync Measurement Results 3

    3- -82) you can display the Limit values by clicking the Limits tab. The minimum and maximum values are set in the limits file for the supported combination of resolution, refresh rate, and timing standard. 3- 150 VM Series Video Measurement System User Manual...

  • Page 269: Displaying H Sync Jitter Measurement Results 3

    Click Results > H Sync Jitter. Refer to Figure 3- -67. Figure 3- 67: H Sync Jitter measurement results Measured Values Click the Measured tab to display the measured values. 3- 151 VM Series Video Measurement System User Manual...

  • Page 270: Figure 3- -68: Limit Values For The H Sync Jitter Measurement 3

    Figure 3- 68: Limit values for the H Sync Jitter measurement Additional Units The only additional unit available in the Results window for the H Sync Jitter measurement is % in the Measured tab and the Relative tab. 3- 152 VM Series Video Measurement System User Manual...

  • Page 271: Displaying H Timing Measurement Results 3

    3- -82), you can display the Limit values by clicking the Limits tab. The minimum and maximum values are set in the limits file for the supported combination of resolution, refresh rate, and timing standard. 3- 153 VM Series Video Measurement System User Manual...

  • Page 272: Displaying Linearity Measurement Results

    Relative Values If Relative to Reference testing is enabled, you can display the calculated relative values by clicking the Relative tab (see Taking Measurements Relative to a Reference on page 3- -78). 3- 154 VM Series Video Measurement System User Manual...

  • Page 273: Displaying Luma Levels Measurement Results

    Levels Measurement on page 3- -119. Take the measurement by clicking the Run button. Click Results > Luma Levels. Refer to Figure 3- -73. Figure 3- 73: Luma Levels measurement results 3- 155 VM Series Video Measurement System User Manual...

  • Page 274: Figure 3- -74: Limit Values For The Luma Levels Measurement 3

    Figure 3- 74: Limit values for the Luma Levels measurement Additional Units The only additional unit available in the Results window for the Luma Levels measurement is % in the Relative tab. 3- 156 VM Series Video Measurement System User Manual...

  • Page 275: Displaying Noise Inj Ratio Measurement Results

    Select the min option to display the minimum limit values. 3- 157 VM Series Video Measurement System User Manual...

  • Page 276: Displaying V Sync Measurement Results

    Reference on page 3- -78). Reference Values If Relative to Reference testing is enabled, you can display the reference values by clicking the Reference tab (see Creating a Custom Reference File on page 3- -80.) 3- 158 VM Series Video Measurement System User Manual...

  • Page 277: Displaying V Timing Measurement Results

    Configure the V Timing measurements as explained in Setting Up the V Timing Measurement on page 3- -122. Take the measurement by clicking the Run button. Click Results > V Timing. Refer to Figure 3- -79. Figure 3- 79: V Timing measurement results 3- 159 VM Series Video Measurement System User Manual...

  • Page 278: Figure 3- -80: Limit Values For The V Timing Measurement 3

    Select the max option to display the maximum limit values for the measurement. Refer to Figure 3- -80. Figure 3- 80: Limit values for the V Timing measurement 3- 160 VM Series Video Measurement System User Manual...

  • Page 279: Displaying Video Transient Measurement Results

    Limits tab (see Taking Measurements with Limit Testing on page 3- -82). The minimum and maximum values are set in the limits file for the supported combination of resolution, refresh rate, and timing standard. 3- 161 VM Series Video Measurement System User Manual...

  • Page 280: Figure 3- -82: Limit Values For The Video Transient Measurement 3

    Select the min option to display the minimum limit values. Select the max option to display the maximum limit values. Refer to Figure 3- -82. Figure 3- 82: Limit values for the Video Transient measurement 3- 162 VM Series Video Measurement System User Manual...

  • Page 281: Displaying Pass/Fail Results

    Figure 3- -83 for Option SD/HD. Refer to Figure 3- -84 for Option VGA. Figure 3- 83: Displaying Pass/Fail results in results summary for Option SD/HD Figure 3- 84: Displaying Pass/Fail results in results summary for Option VGA 3- 163 VM Series Video Measurement System User Manual...

  • Page 282: Figure 3- -85: Displaying Pass/Fail Results (Option Sd/Hd) 3

    Results appear in green text if the measurement falls between the maximum and minimum limits. Results appear in red text if the measurement falls above the maximum limit or below the minimum limit. 3- 164 VM Series Video Measurement System User Manual...

  • Page 283: Appendices

    Appendices...

  • Page 285: Appendix A: Specifications

    DPO7000, DSA/DPO70000 Series Digital Phosphor Oscillo- scopes Specifications and Performance Verification Technical Reference, Tektronix part number 071- -1735- -XX. The Technical Reference is provided as a PDF file on the DPO7000, DPO70000 and DSA7000 Series Product Software CD, Tektronix part number 020- -2693- -XX.
  • Page 286 - - 60 to - - 70 dB, for measurements below ±1 dB (VM6000, DPO7000 - - 60 dB. series)- - 60 to - - 70 dB, 64 Averages. ± 2 dB (VM5000 series, TDS5000 series) A- 2 VM Series Video Measurement System User Manual...
  • Page 287 Noise less than 5mV RMS (- - 43 dB relative to 700 mV). ±0.5%, 1- - 30 MHz Frequency readout Multiburst packet frequency is measured and displayed. 32 Averages. A- 3 VM Series Video Measurement System User Manual...
  • Page 288 Readout of RMS total of all frequency terms, other than the fundamental, found in the 3 μs search window, and expressed as a per- centage of the RMS ampli- tude of the fundamental frequency. A- 4 VM Series Video Measurement System User Manual...
  • Page 289 Time - - Relative mode(typi- (VM5000 series, TDS5000 measurements on 2T bar, cal) series) compared to a previously ±3.2 ns (DPO7054) stored measurement. ±3.8 ns (VM6000, DPO7104) ±4.5 ns (DPO7254) HD image formats: ±2ns A- 5 VM Series Video Measurement System User Manual...
  • Page 290 (VM5000 series, TDS5000 start and end of active series) video. ±2.5 ns (DPO7054) ±3 ns (VM6000, DPO7104) ±3.5 ns (DPO7254)HD image formats: ±5 ns (VM5000 series, TDS5000 series) ± 2ns (VM6000, DPO7000 series) A- 6 VM Series Video Measurement System User Manual...
  • Page 291 ±1 line Vertical Offset Vertical image offset, be- tween test and reference image, after scale differ- ences are removed. Ex- pressed in horizontal lines. A- 7 VM Series Video Measurement System User Manual...
  • Page 292 Jitter terms are Gaussian distributed. H Sync Wander measurement ≤ 0.05 Hz Minimum Wander Cut- - off Effective - - 3dB high pass frequency filter frequency for Wander measurements. User ad- justable. A- 8 VM Series Video Measurement System User Manual...
  • Page 293 BNC shell. Frequency Re- 50 KHz to Frequency response through the main 30 MHz ±1% sponse(typical) signal path. Terminated in 1 MΩ, 18 pF nominal. Driven from 75 Ohm source. A- 9 VM Series Video Measurement System User Manual...
  • Page 294 25 °C. Main path is driven by 75 Ω source. Environmental Range +5 °C to +45 °C Operating Temperature Operating Humidity 20% to 80% RH, non- - condensing A- 10 VM Series Video Measurement System User Manual...

  • Page 295: Option Vga

    Luma Level); maxi- percentage. mum of ±1.6% VESA Test Procedure (VM6000 and section 6.5. DPO7000 series) ±0.7% ±(1.3%) x (Luma Level)­(Max Luma Level); maxi- mum of ±2.0% (VM5000 series and TDS5000 series) A- 11 VM Series Video Measurement System User Manual...
  • Page 296 ± 1% of reading for measurement overshoot transient. (typical) settling times 1- - 10 ns Applies to both RGB and Sync channels. VESA Test Procedure section 6.8 and 7.3. A- 12 VM Series Video Measurement System User Manual...
  • Page 297 1% signal is transitioning (all except DPO7254) monotonically (slope and 2% (DPO7254 does not change sign). only) of p- - p sync VESA Test Procedure amplitude section 6.4. A- 13 VM Series Video Measurement System User Manual...
  • Page 298 (total peak (VM6000 and field time) and vertical DPO7000 series) sync pulse width, in ±{(1/sample rate) + seconds. 15 ppm of reading} peak (VM5000 series and TDS5000 series) A- 14 VM Series Video Measurement System User Manual...
  • Page 299 < PCF < 400 MHz (VM6000 and 100,000 samples. This DPO7000 series) variation occurs irre- ± 7.5% of pixel clock spective of the mea- (VM5000 series and surement system ac- TDS5000 series) curacy. A- 15 VM Series Video Measurement System User Manual...
  • Page 300 Input Capacitance, HV Channels (typical) 3 pF nominal Wideband mode only Bandwidth, RGB Channels Value / Accuracy Wideband mode (typical) 3 dB down at 1500 MHz Precision LF mode DC to 10 MHz (typical) A- 16 VM Series Video Measurement System User Manual...

  • Page 301: Emc Compliance Information

    Noise Floor be determined. This can be done by placing terminators on the MIU RGB inputs and performing a Noise Injection Ratio measurement. A- 17 VM Series Video Measurement System User Manual...
  • Page 302 Appendix A: Specifications A- 18 VM Series Video Measurement System User Manual...

  • Page 303: Appendix B: Performance Verification

    Appendix B: Performance Verification Use the procedures in this appendix to verify that your VM Series System meets it warranted characterics. There are two major sections to this appendix. The first section contains the performance verification for Option SD/HD. The second section contains the performace verification for 012- -1685 RGBHV Measurement Interface Unit, a hardware accessory used with Option VGA.

  • Page 304: Required Equipment

    This test can be performed using any of the supported SD or HD formats. If you have both SD and HD options on your VM series product, testing with one of the B- 2 VM Series Video Measurement System User Manual...
  • Page 305 Connect a 75 Ω BNC cable to the CH1 (Y channel with sync on Y) AWVG7 outputs. b. Connect the other end of the cable to the VM Series System CH 4 input Ω and a 75 termination using a BNC ‘T’...
  • Page 306 ”Noise at Cursor Position” dB values. 13. Change the Filter Bandwidth (Hz) from 30.0 MHz to 60.0 MHz. Again press the VM option Run button. The measurement is finished when Done appears in the status window. B- 4 VM Series Video Measurement System User Manual...

  • Page 307: Rgbhv Measurement Interface Unit (012- 1685- Xx) Performance Verification

    (Table A- -4 in Appendix A, Specifications). The MIU accessory is used only with Option VGA. If the MIU is used with a VM6000 or DPO7000 series platform, four Tektronix TPA-BNC TekProbe BNC adapters are used to connect the MIU CH1, CH2, CH3, and CH4 pigtails to the oscilloscope platform.

  • Page 308: Required Equipment

    50FPG- - 006- - BNC 6.0 dB + 0.5 dB, 1- - 1500 MHz. Ω RG-58, male BNC connectors, length 43 Tektronix part number All tests BNC Cable inches. 012- - 0057- - 01 B- 6 VM Series Video Measurement System User Manual...

  • Page 309: Test A: Initial Connection And Setup

    Test A: Initial Connection and Setup 1. With the VM Series System Power off, connect all five MIU coaxial cables to the host VM Series System. Use the labels on the MIU as a guide. B- 7 VM Series Video Measurement System User Manual...
  • Page 310 VM Series System. Attach a keyboard and mouse to the VM Series System. Turn on the VM Series System. The MIU Power ON led should be lit and the MIU Fault LED should be off. If the Fault indicator is lit, check that all of the coaxial cables have been properly connected.

  • Page 311: Test B: Rgb Lf Mode Dc Termination Accuracy

    LED in the RGB LF Path is now illuminated. NOTE. The V channel and H/V LF Path LEDs will also be illuminated. 3. On the VM Series System front panel, under VERTICAL, select 1 MΩ for CH1, CH2, and CH3.

  • Page 312: Test C: Rgb Lf Mode And Hv Lf Mode Dc Gain

    Path is active, and of the H and V channels when the HV LF Path is active. The specification for all five channels is 1.0 ¦ 0.002% (20 ppm) when driven from a 0 Ω source and with a 1 MΩ load (provided by the VM Series System). The following equipment is required for the test:...
  • Page 313 10. Connect the BNC “T” adapter to the B input BNC on the MIU. 11. Disconnect the MIU CH2 coaxial cable from the VM Series System, and connect the BNC short to the cable end, as described in step 6.
  • Page 314 15. Connect the BNC “T” adapter to the R input BNC on the MIU. 16. Disconnect the MIU CH3 coaxial cable from the VM Series System and connect the BNC short to the cable end, just as was done for CH1 (and described in step 6 above).
  • Page 315 The above check evaluates gain error by measuring the MIU series resistance that forms a voltage divider with the 1 MΩ input resistance of the VM Series System. The 15.0 Ω (G,B,R inputs) and 19.0 Ω (H,V inputs) test limits ensure that the gain error does not exceed ¦20 ppm.

  • Page 316: Test D: Hv Input Lf Mode Dc Termination Accuracy And Wb Mode Dc Input Impedance

    Verify that the H channel, HV LF Path, and Term On LEDs are illuminated. The + 8 mA and –8 mA LEDs must be off. 3. On the VM Series System front panel, under VERTICAL, select 1 MΩ for CH4.

  • Page 317: Test E: Hv Input Lf Mode Current Sources

    Appendix B: Performance Verification 10. On the VM Series System front panel, under VERTICAL, select 50 Ω for CH4. 11. CHECK – that the Multimeter reads between 2142 Ω and 2258 Ω. 12. Disconnect the BNC “T” adapter from the H input BNC.

  • Page 318: Test F: Rgb Wb Mode Bandwidth

    $LOAD=1000000 to the MIU. Verify that the RGB WB Path LED is illuminated. 3. On the VM Series System front panel, under VERTICAL, select 50 Ω for CH1, CH2, and CH3. 4. Set the tracking generator and spectrum analyzer controls as follows:...
  • Page 319 B CH R CH Equations C2=(C1)/2 C5=(C3+C4)/2 C6=C5-C2 9. Disconnect the 50 Ω cables from the series-connected min-loss pads. Separate the two min-loss pads. Connect one of the min-loss pads (male end) B- 17 VM Series Video Measurement System User Manual...
  • Page 320 6 dB attenuator on the analyzer input. Disconnect the MIU CH1 cable from the VM Series System. Attach this cable to open end of the BNC female/fe- male adapter. To do this, the latching ring must be rotated to the full clockwise position, as viewed from the pin-side of the probe housing.
  • Page 321 15. Disconnect the MIU CH1 coaxial cable from the BNC female/female adapter, and reconnect it the VM Series System CH1 input. Disconnect the MIU CH2 cable from the VM Series System. Attach this cable to open end of the BNC female/female adapter. Move the min-loss pad and cable currently connected to the MIU G input BNC to the B input BNC.

  • Page 322: Test G: H/V Inputs Wb Mode Bandwidth

    H 50 Ω BNC cable (Qty 2) H Type N to BNC adapter (Qty 2) H 50 Ω BNC female/female adapter 1. Connect the MIU to the VM Series System, apply power, and establish communications using Hyperterminal as described in Test A of this procedure.
  • Page 323 7. Disconnect the two 50 Ω cables at the BNC female/female adapter. Keep the female/female adapter connected to the cable going to the analyzer input. 8. Disconnect the MIU CH4 coaxial cable from the VM Series System. All of the MIU LEDs, including Power, will extinguish, but the MIU is still receiving power to conduct this test.
  • Page 324 MIU is in the proper mode by sending the query $LOAD?. You should receive the reply load=0100000. If the string is not correct, send the command $LOAD=0100000 . B- 22 VM Series Video Measurement System User Manual...
  • Page 325 18. Remove the cable from the V input. Disconnect the MIU CH4 coaxial cable from the BNC female/female adapter. Reconnect the MIU CH4 coaxial cable to the VM Series System CH4 input. This completes the 012-1685-XX RGBHV Measurement Interface Unit (MIU) Performance Verification.
  • Page 326 Appendix B: Performance Verification B- 24 VM Series Video Measurement System User Manual...

  • Page 327: Appendix C: Cleaning

    Do not use abrasive cleaners or commercial glass cleaners to clean the display surface. Do not spray liquids directly on the display surface. Do not scrub the display with excessive force. C- 1 VM Series Video Measurement System User Manual...
  • Page 328 If the display is very dirty, moisten the wipe with distilled water or a 75% isopropyl alcohol solution and gently rub the display surface. Avoid using excess force or you may damage the plastic display surface. C- 2 VM Series Video Measurement System User Manual...

  • Page 329: Appendix D: Rebuilding The Hard Drive

    Software CD jewelcase booklet to install the instrument software (Tektronix part number 020-2693-XX). 3. Follow the directions in the VM Series Video Measurement System Product Software CD jewelcase booklet to install the VM Series System software (Tektronix part number 020-2767-XX).
  • Page 330 Appendix D: Rebuilding the Hard Drive D- 2 VM Series Video Measurement System User Manual...

  • Page 331: Appendix E: Signal Sources Package Contents

    Signal Sources discs. The table also lists which TG700 modules are required to generate test signals with the TG700 using the DNL files supplied with the Signal Sources discs. E- 1 VM Series Video Measurement System User Manual...

  • Page 332: Baseband Test Signals Cd

    There is one directory: H The TG700 directory contains setup (.dnl) files for generating Matrix test signals using the Tektronix TG700 TV Signal Generator Platform. Table E- -3 lists the analog image format standard .dnl setup files. Table E- -4 lists the digital image format standard .dnl setup files.
  • Page 333 TG700 to move the setup files over your network from the PC to the TG700 instrument. Figure E- -1 shows a typical test signal setup using the TG700 instrument as the signal source. E- 3 VM Series Video Measurement System User Manual...

  • Page 334: Atsc Transport Stream Cd

    ATSC Transport Stream CD The ATSC Transport Streams disc (Tektronix part number 020-2773-XX) contains files for playout on an MPEG player (such as the Tektronix MTX100 MPEG Recorder and Player) to generate Matrix pattern compressed ATSC transport stream test signals for 480, 720, and 1080 standards. Table E- -5 lists the available image format standard .trp setup files.

  • Page 335: Advanced Tv Elementary Streams Cd Standard Definition Tv Elementary Streams Cd

    Figure E- 2: Using ATSC transport stream signals Advanced TV Elementary Streams CD Standard Definition TV Elementary Streams CD The Advanced TV Elementary Streams disc (Tektronix part number 020-2772-XX) and the Standard Definition TV Elementary Streams disc (Tektronix part number 020-2771-XX) contain MPEG2-compressed elementary stream files.
  • Page 336 Figure E- -3 shows a typical elementary stream test setup. MPEG transport Transport stream Modulator Stream Elementary Stream VM Series Multiplexor files on CD Figure E- 3: Using elementary stream signals E- 6 VM Series Video Measurement System User Manual...

  • Page 337: 480 And 576 Line Dvds

    System Figure E- 4: Using DVD signals NOTE. The DVD files are in interlace format. The playback device must be set to progressive mode (480p or 576p) before sending signals to the VM Series System instrument. E- 7 VM Series Video Measurement System User Manual...

  • Page 338: H.264 Sd & Hd Streams Cds

    H The AC- -3 Audio is PID number 52, and the stream type = 129. H No other TS tables are included. If you require additional tables, you can use the Tektronix MTS400 to remultiplex the transport streams including the tables you require.
  • Page 339 3600 frames, 60.06 s M720p60.trp 1080i 3000 frames, 60 s M1080i50.trp 3600 frames, 60.06 s M1080i60.trp 1080p 1440 frames, 60 s M1080p24.trp 3000 frames, 60 s M1080p50.trp 3600 frames, 60.06 s M1080p60.trp E- 9 VM Series Video Measurement System User Manual...

  • Page 340: Signal Source Disc For Option Vga

    10-bit Linearity measurement which are in PNG format. See page 2- -21 for more information on the Matrix test pattern. PC Bitmap Graphics Test The Test Signals disc (Tektronix part number 020- -2775- -XX) contains files for Signal Files CD-ROM generating test signals. The disc contains the following: H The FullFieldSignals folder that contains a set of test pattern sub-directories to take a measurement.

  • Page 341: Index

    Index...
  • Page 343 Compressed transport stream files, E- - 4 exit, 2- - 28 Configuration menu, 3- - 5 Generate Report, 2- - 59, 2- - 60 Connecting input signals, 2- - 3 input signal format, 2- - 30 Index- 1 VM Series Video Measurement System User Manual...
  • Page 344 3- - 64 Line Number, 3- - 19, 3- - 27 displaying, 3- - 151 Line Number defaults in .vmset file, 3- - 3 setting up, 3- - 116 Index- 2 VM Series Video Measurement System User Manual...
  • Page 345 Menu bar, 2- - 27 Run Only, 2- - 35, 3- - 14 Menu descriptions, 3- - 3 Selected, 2- - 60 Minimizing the application and main display, 2- - 27 Index- 3 VM Series Video Measurement System User Manual...
  • Page 346 Run button, 2- - 27 Sync signal trigger channel buttons, 2- - 37 Run Mode System diagnostics menu, 1- - 15 interactions with Average setting, 3- - 19, 3- - 27 Index- 4 VM Series Video Measurement System User Manual...
  • Page 347 Warnings, 2- - 39 Instrument Diagnostics, 1- - 15 Windows desktop, accessing, 2- - 27 Windows operating system, backup tool, 1- - 12 V Sync detailed measurement information, 3- - 71 Index- 5 VM Series Video Measurement System User Manual...
  • Page 348 Index Index- 6 VM Series Video Measurement System User Manual...

Table of Contents