User Manual
VM100 & VM101
Video Measurement Sets
070-9522-05
This document supports firmware version 2.17
and above.
Copyright E Tektronix, Inc. All rights reserved. Printed in U.S.A.
Tektronix products are covered by U.S. and foreign patents, issued and
pending.
Information in this publication supersedes that in all previously published
material. Specifications and price change privileges reserved. The following
are registered trademarks: TEKTRONIX and TEK.
For product related information, phone: 800-TEKWIDE (800-835-9433),
ext. TV.
For further information, contact: Tektronix, Inc., Corporate Offices, P.O. Box
1000, Wilsonville, OR 97070–1000, U.S.A. Phone: (503) 627–7111; TLX:
192825; TWX: (910) 467–8708; Cable: TEKWSGT.
WARRANTY
T ektronix warrants that the products that it manufactures and sells will be free from defects
in materials and workmanship for a period of one (1) year from the date of shipment. If a
product proves defective during this warranty period, Tektronix, at its option, either will
repair the defective product without charge for parts and labor, or will provide a
replacement in exchange for the defective product.
In order to obtain service under this warranty , Customer must notify T ektronix of the defect
before the expiration of the warranty period and make suitable arrangements for the
performance of service. Customer shall be responsible for packaging and shipping the
defective product to the service center designated by Tektronix, with shipping charges
prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to
a location within the country in which the Tektronix service center is located. Customer
shall be responsible for paying all shipping charges, duties, taxes, and any other charges for
products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or
improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish
service under this warranty a) to repair damage resulting from attempts by personnel other
than Tektronix representatives to install, repair or service the product; b) to repair damage
resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a
product that has been modified or integrated with other products when the effect of such
modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER
WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS
DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY
TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF
THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE
FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR
HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Service Assurance
If you have not already purchased Service Assurance for this product, you may
do so at any time during the product’ s warranty period. Service Assurance
provides Repair Protection and Calibration Services to meet your needs.
Repair Protection extends priority repair services beyond the product’s
warranty period; you may purchase up to three years of Repair Protection.
Calibration Services provide annual calibration of your product, standards
compliance and required audit documentation, recall assurance, and reminder
notification of scheduled calibration. Coverage begins upon registration; you
may purchase up to five years of Calibration Services.
Service Assurance Advantages
H Priced well below the cost of a single repair or calibration
H Avoid delays for service by eliminating the need for separate purchase
authorizations from your company
H Eliminates unexpected service expenses
For Information and Ordering
For more information or to order Service Assurance, contact your Tektronix
representative and provide the information below. Service Assurance may not
be available in locations outside the United States of America.
Name VISA or Master Card number and expiration
Company date or purchase order number
Address Repair Protection (1,2, or 3 years)
City, State, Postal code Calibration Services (1,2,3,4, or 5 years)
Country Instrument model and serial number
Phone Instrument purchase date
Table of Contents
General Safety Summary x. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Overview xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Documentation Set xiv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Getting Started
Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical Installation 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Custom Installation 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rackmounting 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Installation 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source Requirements 1–6. . . . . . . . . . . . . . . . . . . . . . . .
Power On Procedure 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Time Operation 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure the Measurements 1–9. . . . . . . . . . . . . . . . . . . . . . . .
Configure the Zero Carrier Reference Pulse Trigger Output 1–10
Configure the Signal Identification Range 1–11. . . . . . . . . . . . .
Configure the Full Field Start Line 1–11. . . . . . . . . . . . . . . . . . .
Configure the Reference 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure the Hum Measurement (VM100 Only) 1–12. . . . . . . .
Configure the Signal-to-Noise Ratio Filter 1–13. . . . . . . . . . . . .
Configure the Luminance Nonlinearity Mode 1–13. . . . . . . . . . .
Configure the Limit Table Selection 1–13. . . . . . . . . . . . . . . . . .
Configure for Printing 1–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure for Computer Communications 1–15. . . . . . . . . . . . .
Configure for Waveform Monitor Control Function 1–17. . . . . .
Configure the Date 1–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure the Time 1–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjust the LCD View Angle 1–19. . . . . . . . . . . . . . . . . . . . . . . .
Display the Software Version Number 1–19. . . . . . . . . . . . . . . .
Calibration 1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VM100 & VM101 User Manual
i
Table of Contents
Operating Basics
Functional Overview 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Buttons and LCD Display 2–2. . . . . . . . . . . . . .
Menus 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Panel Connectors 2–7. . . . . . . . . . . . . . . . . . . . . . . . . .
Tutorial 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Initial Setup 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Configuration 2–11. . . . . . . . . . . . . . . . . . . . . . . .
Signal Identification 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Measurements 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Freezing the Measurement Activity 2–14. . . . . . . . . . . . . . . .
Storing Measurement Results 2–15. . . . . . . . . . . . . . . . . . . .
Printing Measurement and Signal Identification Results 2–17
Using Limits 2–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference
General Feature Reference 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Averaging 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freezing the Measurement Activity 3–3. . . . . . . . . . . . . . . . . . .
Using Signal Identification 3–3. . . . . . . . . . . . . . . . . . . . . . . . .
Using Memory Functions 3–6. . . . . . . . . . . . . . . . . . . . . . . . . .
Printing Measurement Results 3–11. . . . . . . . . . . . . . . . . . . . . . .
Using the Waveform Monitor Control Function 3–14. . . . . . . . .
Using the Zero Carrier Reference Pulse Output 3–16. . . . . . . . .
Taking NTSC Measurements (VM100) 3–17. . . . . . . . . . . . . . . . .
Measuring Differential Phase 3–20. . . . . . . . . . . . . . . . . . . . . . . .
Measuring Differential Gain 3–22. . . . . . . . . . . . . . . . . . . . . . . .
Measuring YC Delay 3–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring YC Gain 3–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Signal-to-Noise Ratio 3–27. . . . . . . . . . . . . . . . . . . .
Measuring Frequency Response (FCC) 3–29. . . . . . . . . . . . . . . .
Measuring Frequency Response Detail 3–32. . . . . . . . . . . . . . . .
Measuring Group Delay 3–34. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Sync Amplitude 3–35. . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Burst Amplitude 3–36. . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Bar Amplitude 3–37. . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring 2T K-Factor 3–38. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Luminance Nonlinearity 3–39. . . . . . . . . . . . . . . . . .
Measuring Hum 3–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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VM100 & VM101 User Manual
Table of Contents
Taking PAL Measurements (VM101) 3–43. . . . . . . . . . . . . . . . . .
Measuring Differential Phase 3–46. . . . . . . . . . . . . . . . . . . . . . . .
Measuring Differential Gain 3–48. . . . . . . . . . . . . . . . . . . . . . . .
Measuring YC Delay 3–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring YC Gain 3–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Signal-to-Noise Ratio 3–52. . . . . . . . . . . . . . . . . . . .
Measuring Frequency Response (AVG) 3–54. . . . . . . . . . . . . . .
Measuring Frequency Response Detail 3–56. . . . . . . . . . . . . . . .
Measuring Group Delay 3–58. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Sync Amplitude 3–59. . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Burst Amplitude 3–60. . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Bar Amplitude 3–61. . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring 2T K-Factor 3–62. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Luminance Nonlinearity 3–63. . . . . . . . . . . . . . . . . .
Measuring Hum 3–65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
Appendix A: Specifications A–1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Terms Used in Specifications A–1. . . . . . . . . . . . . . . . . . . . . . . .
Performance Conditions A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Characteristics A–5. . . . . . . . . . . . . . . . . . . . . . .
Safety Standards and Certification A–6. . . . . . . . . . . . . . . . . . . .
Physical Characteristics A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Port A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B: Remote Control B–1. . . . . . . . . . . . . . . . . . . . . . . . .
RS-232 Interface B–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCPI B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Applications B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commands and Queries B–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Syntax B–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Entering Commands B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary of Commands B–11. . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Header B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Message Terminator and Message Separator B–9. . . . . . . . .
Command Characters B–10. . . . . . . . . . . . . . . . . . . . . . . . . . .
Abbreviating Commands B–10. . . . . . . . . . . . . . . . . . . . . . . .
Combining Commands B–10. . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Commands B–12. . . . . . . . . . . . . . . . . . . . . . . . .
VM100 & VM101 User Manual
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Table of Contents
Command List B–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C: Performance Verification C–1. . . . . . . . . . . . . . . . .
General Information C–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prerequisites C–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Requirements C–2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Record C–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification Procedure C–6. . . . . . . . . . . . . . . . . .
Appendix D: Error Messages D–1. . . . . . . . . . . . . . . . . . . . . . . . .
Measurement Commands B–12. . . . . . . . . . . . . . . . . . . . . . . .
Memory Commands B–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Change Commands B–15. . . . . . . . . . . . . . . . . . . . . . .
Configuration Commands B–17. . . . . . . . . . . . . . . . . . . . . . .
Report Measurements Commands B–23. . . . . . . . . . . . . . . . .
Help Commands B–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary
Index
iv
VM100 & VM101 User Manual
List of Figures
Figure 2–1: Front panel 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–2: LCD display characteristics 2–4. . . . . . . . . . . . .
Figure 2–3: The Meas, Mem, and Print menus 2–5. . . . . . . .
Figure 2–4: The CONFIG menu 2–6. . . . . . . . . . . . . . . . . . . .
Figure 2–5: Rear panel connectors 2–7. . . . . . . . . . . . . . . . .
Figure 2–6: Equipment setup for the tutorial 2–10. . . . . . . . .
Figure 2–7: Example of the initial SIG ID display 2–12. . . . .
Figure 2–8: Example of a SIG ID display with source
ID code 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
Figure 2–9: Example of differential phase measurement
results 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–10: Measurements saved to memory 2–15. . . . . . . .
Figure 2–11: Renaming a memory location 2–16. . . . . . . . . . .
Figure 2–12: Date and time stamp display 2–17. . . . . . . . . . .
Figure 2–13: Adding a title 2–18. . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–14: Typical high-limit error display 2–19. . . . . . . . .
Figure 2–15: Limit Violation 2–20. . . . . . . . . . . . . . . . . . . . . .
Figure 3–1: Example of a SIG ID display with source
ID code 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–2: Example of display after saving to memory 3–6
Figure 3–3: Renaming a memory location 3–7. . . . . . . . . . .
Figure 3–4: Date and time stamp display 3–8. . . . . . . . . . . .
Figure 3–5: Connecting to a printer 3–11. . . . . . . . . . . . . . . . .
Figure 3–6: Adding a title 3–12. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–7: Cable pinout for waveform monitor control
function 3–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–8: Example of differential phase measurement
results 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VM100 & VM101 User Manual
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Table of Contents
Figure 3–9: Differential phase measurement screen 3–21. . .
Figure 3–10: Differential gain measur ement screen 3–23. . . .
Figure 3–11: Chrominance-to-luminance delay
measurement screen 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–12: Chrominance-to-luminance gain
measurement screen 3–26. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–13: Signal-to-noise ratio measurement scr een 3–28
Figure 3–14: Frequency response measurement screen 3–30.
Figure 3–15: Frequency flag measurement results 3–32. . . . .
Figure 3–16: Frequency detail screen showing first
packet 3–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–17: Measurement scr een showing maximum
packet amplitude 3–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–18: Group delay measur ement screen 3–34. . . . . . .
Figure 3–19: Sync amplitude measurement scr een 3–35. . . .
Figure 3–20: Burst amplitude measurement scr een 3–36. . . .
Figure 3–21: Bar amplitude measurement scr een 3–37. . . . .
Figure 3–22: 2T K-factor measur ement screen 3–38. . . . . . . .
Figure 3–23: Luminance nonlinearity measurement
screen 3–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–24: Hum measurement scr een with ZCR pulse 3–41
Figure 3–25: Hum measurement scr een with no
ZCR pulse 3–41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–26: Example of differential phase
measurement results 3–43. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–27: Differential phase measur ement screen 3–47. .
Figure 3–28: Differential gain measur ement screen 3–49. . . .
Figure 3–29: Chrominance-to-luminance delay
measurement screen 3–50. . . . . . . . . . . . . . . . . . . . . . . . . . .
vi
Figure 3–30: Chrominance-to-luminance gain
measurement screen 3–51. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–31: Signal-to-noise ratio measurement scr een 3–53
VM100 & VM101 User Manual
Table of Contents
Figure 3–32: Frequency response measurement screen 3–55.
Figure 3–33: Frequency flag measurement screen 3–56. . . . .
Figure 3–34: Frequency detail screen showing first
packet 3–57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–35: Measurement scr een showing maximum
packet amplitude 3–57. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–36: Group delay measur ement screen 3–58. . . . . . .
Figure 3–37: Sync amplitude measurement scr een 3–59. . . .
Figure 3–38: Burst amplitude measurement scr een 3–60. . . .
Figure 3–39: Bar amplitude measurement scr een 3–61. . . . .
Figure 3–40: 2T K-factor measur ement screen 3–62. . . . . . . .
Figure 3–41: Luminance nonlinearity measurement
screen 3–64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–42: Hum measurement scr een with ZCR pulse 3–65
Figure 3–43: Hum measurement scr een with no
ZCR pulse 3–66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B–1: Rear panel RS-232 serial port (female) B–2. . .
Figure B–2: Remote control wiring, VM10X to nine-pin
PC connector B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B–3: Remote control wiring, VM10X to 25-pin
PC connector B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B–4: Remote control wiring, VM10X to 25-pin
modem connector B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B–5: Examples of remote operation B–5. . . . . . . . . . .
Figure B–6: Tree hierarchy B–7. . . . . . . . . . . . . . . . . . . . . . . .
Figure B–7: Command header B–7. . . . . . . . . . . . . . . . . . . . .
Figure B–8: Command header with parameter B–8. . . . . . .
Figure C–1: Initial setup for the PV Procedure C–6. . . . . . .
VM100 & VM101 User Manual
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Table of Contents
List of Tables
Table 1–1: Power cord identification 1–3. . . . . . . . . . . . . . .
Table 1–2: Configuration parameters 1–7. . . . . . . . . . . . . . .
Table 1–3: Print parameters 1–15. . . . . . . . . . . . . . . . . . . . . .
Table 1–4: Computer interface parameters 1–16. . . . . . . . . .
Table 2–1: Equipment for tutorial 2–9. . . . . . . . . . . . . . . . .
Table 3–1: Additional signals identified by SIG ID
mode 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–2: Control function communications
parameters 3–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–3: VITS signals used for NTSC measurements 3–19
Table 3–4: Packet frequencies for measuring frequency
response 3–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–5: Test signals used for PAL measurements 3–45. .
Table A–1: Input signal requirements–VIDEO INPUT A–2
Table A–2: Input signal requirements–EXT REF A–2. . . . .
Table A–3: Measurement accuracy A–3. . . . . . . . . . . . . . . . .
Table A–4: Output A–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table A–5: AC power source A–5. . . . . . . . . . . . . . . . . . . . .
Table A–6: Environmental characteristics A–5. . . . . . . . . .
Table A–7: Certifications and compliances A–6. . . . . . . . . .
Table A–8: Physical characteristics A–8. . . . . . . . . . . . . . . .
Table A–9: Remote control port A–8. . . . . . . . . . . . . . . . . . .
Table B–1: RS-232 pin connections B–2. . . . . . . . . . . . . . . . .
Table B–2: Parameter types for syntax descriptions B–8. . .
viii
Table B–3: Front panel commands B–12. . . . . . . . . . . . . . . . .
Table B–4: Measurement commands B–13. . . . . . . . . . . . . . .
Table B–5: Memory commands B–14. . . . . . . . . . . . . . . . . . . .
Table B–6: Signal change commands B–15. . . . . . . . . . . . . . .
VM100 & VM101 User Manual
Table of Contents
Table B–7: Configuration commands B–17. . . . . . . . . . . . . . .
Table B–8: Report measurements commands B–23. . . . . . . .
Table B–9: Help commands B–23. . . . . . . . . . . . . . . . . . . . . . .
Table B–10: CONfig:LINe subcommands B–34. . . . . . . . . . .
Table B–11: CONfig:LINe available lines B–35. . . . . . . . . . .
Table B–12: CONfig:MEAs subcommands B–37. . . . . . . . . .
Table B–13: NEXTmeas subcommands B–76. . . . . . . . . . . . .
Table B–14: PREVmeas subcommands B–78. . . . . . . . . . . . .
Table B–15: REP subcommands B–83. . . . . . . . . . . . . . . . . . .
Table C–1: Test equipment C–3. . . . . . . . . . . . . . . . . . . . . . . .
Table D–1: Error messages for manual operation D–1. . . . .
Table D–2: Error messages for remote operation D–1. . . . .
VM100 & VM101 User Manual
ix
General Safety Summary
Review the following safety precautions to avoid injury and prevent
damage to this product or any products connected to it.
Only qualified personnel should perform service procedures.
If this equipment is used in any manner not specified, including
failure to follow any rating or direction for use, the protection
provided by the equipment may be impaired.
Injury Precautions
Use Proper Power Cord. To avoid fire hazard, use only the power cord
specified for this product.
Avoid Overvoltage. To avoid electric shock or fire hazard, do not apply
potential to any terminal, including the common terminal, that varies
from ground by more than the maximum rating for that terminal.
Ground the Product. This product is grounded through the grounding
conductor of the power cord. To avoid electric shock, the grounding
conductor must be connected to earth ground. Before making
connections to the input or output terminals of the product, ensure
that the product is properly grounded.
Do Not Operate Without Covers. To avoid electric shock or fire hazard,
do not operate this product with covers or panels removed.
Use Proper Fuse. To avoid fire hazard, use only the fuse type and
rating specified for this product.
Do Not Operate in Wet/Damp Conditions. To avoid electric shock, do not
operate this product in wet or damp conditions.
Do Not Operate in an Explosive Atmosphere. To avoid injury or fire
hazard, do not operate this product in an explosive atmosphere.
Product Damage Precautions
Use Proper Power Source. Do not operate this product from a power
source that applies more than the voltage specified.
Provide Proper Ventilation. To prevent product overheating, provide
proper ventilation.
x
VM100 & VM101 User Manual
General Safety Summary
Do Not Operate With Suspected Failures. If you suspect there is damage
to this product, have it inspected by qualified service personnel.
Safety Terms and Symbols
Terms in This Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that
could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that
could result in damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you
read the marking.
WARNING indicates an injury hazard not immediately accessible as
you read the marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. These symbols may appear on the product:
DANGER
High Voltage
Protective Ground
(Earth) Terminal
ATTENTION
Refer to Manual
Double
Insulated
Certifications and Compliances
Refer to the specifications section for a listing of certifications and
compliances that apply to this product.
VM100 & VM101 User Manual
xi
General Safety Summary
xii
VM100 & VM101 User Manual
Preface
This is the user manual for the video measurement set. It contains
information about the NTSC (VM100
of the instrument. When operating instructions are different for
NTSC and PAL, you will receive complete instructions for each
version.
Manual Overview
You will find the following topics covered in this manual:
H Getting Started explains how to set up the video measurement set
for first-time operation. The section also provides a list of the
accessories and options you can purchase.
H Operating Basics explains the operation of each control,
indicator, and connector on the front and rear panels. The tutorial
helps first-time operators use many of the instrument features.
) and PAL (VM101) versions
H Reference provides a more detailed explanation of instrument
features and explains how to use each of the built-in signal
measurements.
H Appendix A: Specifications lists all instrument specifications and
certifications.
H Appendix B: Remote Control explains how to operate the video
measurement set using the RS-232 remote interface.
H Appendix C: Performance Verification explains how to verify the
video measurement set performance.
H Appendix D: Error Messages lists the error messages you might
receive when operating the video measurement set and gives the
actions you must take in response to each message.
VM100 & VM101 User Manual
xiii
Preface
Documentation Set
The VM100 and VM101 Video Measurement Sets are supported
by two manuals:
H The VM100 & VM101 Video Measurement Sets User Manual
(Tektronix part number 070-9522-XX) is included with each
instrument
H The VM100 & VM101 Video Measurement Sets Service Manual
(Tektronix part number 070-9288-XX) is an optional accessory
that you can purchase from Tektronix
xiv
VM100 & VM101 User Manual
Getting Started
Getting Started
This section provides the information you need to use the video
measurement set for the first time. Refer to the following sections to
prepare the instrument for operation:
H Product Description on page 1–1 describes the instrument
features
H Options on page 1–3 provides a list of the available options
H Accessories on page 1–4 describes the accessories that are
available for use with the video measurement set
H Mechanical Installation on page 1–4 describes different ways
for you to rackmount the video measurement set
H Electrical Installation on page 1–6 explains how to power on
the video measurement set
H First T ime Operation on page 1–7 explains how to configure the
video measurement set features for your application
Product Description
The Tektronix VM100 and VM101 Video Measurement Sets are
low-cost, automatic video measurement instruments. The VM100
measures NTSC signals and the VM101 measures PAL signals.
The video measurement sets are easy to operate. They use existing or
inserted test signals and take measurements consistent with
regulatory specifications. The video measurement sets allow you to
perform measurements that are useful for ensuring the quality of
your video signals.
The video measurement sets display measurement results on an
easy-to-read alphanumeric LCD screen with backlight. You can also
display measurement results on a serial printer or remote PC using
the RS-232 serial port.
VM100 & VM101 User Manual
1–1
Getting Started
The video measurement sets perform the following measurements
(on-screen labels are shown in parentheses):
H Differential Phase (DIFF PHASE)
H Differential Gain (DIFF GAIN)
H Chrominance-to-Luminance Delay (YC DELAY)
H Chrominance-to-Luminance Gain (YC GAIN)
H Signal-to-Noise Ratio (SNR WGT/FLAT)
H Frequency Response (FREQ FCC or AVG)
H Frequency Response Detail (FREQ FLAG, FREQ #1 through
H Group Delay (GRPDLYmax and GRPDLYmin)
FREQ #6) or (FRQmax and FRQmin)
H Sync Amplitude (SYNC AMPL)
H Burst Amplitude (BURST AMPL)
H Bar Amplitude (BAR AMPL)
H 2T K-Factor (2T K-FACTOR)
H Luminance Nonlinearity (LUM NON-LIN)
H Hum (HUM P-P, 50/60 Hz, and 100/120 Hz)
1–2
VM100 & VM101 User Manual
Options
You can purchase the video measurement set with one of the power
cord options shown in Table 1–1.
Table 1–1: Power cord identification
Getting Started
Plug Configuration
Normal Usage Option Number
North America
115 V
Europe
230 V
United Kingdom
230 V
Australia
230 V
Standard
A1
A2
A3
VM100 & VM101 User Manual
1–3
Getting Started
Accessories
When unpacking the video measurement set for the first time, check
inside the shipping carton for the following standard accessories:
H VM100 & VM101 Video Measurement Sets User Manual
(Tektronix part number 070-9522-XX)
H Power cable assembly, standard USA, 125 V (Tektronix part
number 161-0216-00)
H Replacement cushioning pads, six each (Tektronix part number
348-0844-00)
You can order optional accessories with the video measurement set
or purchase them through a Tektronix field office or distributor. The
following optional accessories are available:
H VM100 & VM101 Video Measurement Sets Service Manual
(Tektronix part number 070-9288-XX)
H RS-232 Cable, DCE to DTE
(Tektronix part number 174-1809-00)
H TVGF15 Mounting Kit
For use with a 1740A-series waveform monitor)
Mechanical Installation
The video measurement set requires no assembly. Please read the
following sections before installing the video measurement set into a
console or equipment rack.
NOTE. All qualification testing was performed with the factoryshipped cabinet installed. To guarantee compliance with specifications, operate the instrument only in the original cabinet.
1–4
VM100 & VM101 User Manual
Getting Started
Custom Installation
CAUTION. To avoid damage to the video measurement set, be sure to
attach it to a shelf that is strong enough to hold its weight
(4 lbs/1.81 kg).
For applications that require installation into consoles, the video
measurement set can be mounted with the front molding flush or
protruding from the console. Always allow approximately 3 inches
(7.6 cm) of rear panel clearance for cable and power cord
connections.
Rackmounting
The video measurement set is one-half-rack wide and one rack unit
high. It requires approximately 3 inches (7.6 cm) of rear panel
clearance for power cord and cable connections and 20 inches
(50.8 cm) in front of the rack for installation and removal.
You can order the following rackmounting kits from Tektronix:
H TVGF13 adapter (mounts two half-rack width instruments
side-by-side in a standard 19-inch rack)
H TVGF14 adapter (allows you to mount two half-rack width
instruments in a standard half-rack application)
NOTE. The video measurement set fits only in the lower portion of the
TVGF14 adapter.
VM100 & VM101 User Manual
1–5
Getting Started
Electrical Installation
This section explains how to connect the video measurement set to
an AC power source and how to recognize when the power on
sequence is complete. If you want to connect a printer, personal
computer (PC), or waveform monitor to the RS-232 serial port, refer
to page 1–14 and Appendix B: Remote Control for more information.
Power Source Requirements
WARNING. To avoid personal injury due to electrical shock, never
operate the video measurement set without the protective ground
connection by way of the grounding conductor in the power cord.
The video measurement set operates over the range of 90 V
250 V
apply more than 250 V
at either 50 Hz or 60 Hz. The power source should never
RMS
between the supply conductors or
RMS
rms
to
between either supply conductor and ground.
Power On Procedure
To power on the video measurement set, connect it to the AC power
source. There is no power switch.
The power on sequence completes in approximately 10 seconds.
After power on completes, check for the following conditions:
H The LCD display shows the message “No video present, or no
lock possible” (if no signals are connected to the rear panel
INPUT connector).
H The MEAS button indicator lights.
NOTE. The AVG button indicator lights at power on if the A VG
feature was in use when AC power was last disconnected.
1–6
VM100 & VM101 User Manual
First Time Operation
This section guides you through the configuration of each operating
parameter. (No configuration is necessary for basic operation.) Refer
to Table 1–2 for an overview of the parameters you can configure,
the location of the configuration instructions, and the factory default
values.
You can configure most parameters using a computer. Refer to
Appendix B: Remote Control for a listing of the remote commands.
T able 1–2: Configuration parameters
Getting Started
Parameter
MEASURE 1–9 SNR is ON; all other mea-
ZCR PULSE 1–10 VM100: Line 10
SIG ID RANGE 1–11 VITS
FULL FLD START 1–11 23
REF 1–12 INPUT
HUM (VM100 ONLY) 1–12 60HZ
SNR FILTER 1–13 WEIGHTD
LUM NON LIN 1–13 NORMAL
LIMITS 1–13 OFF
RS232 1–14 for printing
Page Number Factory Default Value
surements are OFF
VM101: Line 7
COMPUTER
1–15 for computer
1–17 for waveform
monitor operation
PRINTER RS232
BAUD RATE
STOP BITS
PARITY
FLOW CTL
VM100 & VM101 User Manual
1–14
9600
1
NONE
NONE
1–7
Getting Started
T able 1–2: Configuration parameters (cont.)
Parameter Factory Default ValuePage Number
COMPUTER RS232
BAUD RATE
STOP BITS
PARITY
FLOW CTL
REMOTE ADDR
1995 NOV 11 (Date)
YEAR
MONTH
DAY
10:13:18AM (Time)
HOUR
MINUTE
VIEW ANGLE 1–19 80
SW VER 1–19 Current software version
CALIBRATE 1–20 N/A
1–15
9600
1
NONE
NONE
0
1–18 Today’s date
1–18 Current time
1–8
Use the following procedures to customize the operation of your
video measurement set. Once you have configured the parameters,
the video measurement set powers on as you configured it. Refer to
Operating Basics if you need a detailed description of the front panel
buttons or the LCD display.
NOTE. The video measurement set uses the last setting that was saved
for each parameter if power is interrupted during configuration.
To exit the CONFIGURE menu at any time during these procedures,
press the MEAS, SIG ID, MEM, or PRINT buttons.
VM100 & VM101 User Manual
Getting Started
1.
NOTE. If the front panel has been locked with the REMLock remote
command, it can be unlocked by holding down the CONFIG button
and pressing the FREEZE button.
Configure the Measurements
The video measurement set performs a group of measurements when
you press the MEAS button. The display update rate depends upon
the number of measurements made and the presence of valid input
signals. You can customize this feature for your application by
selecting only the measurements you need.
NOTE. No new measurements are performed while the FREEZE or
CONFIG lights ar e on. The REPort and MEMory:SAVe commands
use the results that were present when either button was pressed.
The CONFIG button provides access to the instrument configuration.
Perform the following steps to choose measurements that will be
performed when you press the MEAS button or use the CONfig:MEAs:<subcommand> remote command on page B–37:
2. 3. 4. 5.
Press the
CONFIG
button.
Select
(default).
Press the ↵
enter button.
Select the
desired
measurement.
See list below.
Select or
. Repeat
steps 3 and 4
to configure
additional
measurements.
Press the
MEAS button
to exit.
VM100 & VM101 User Manual
1–9
Getting Started
The following measurements are available:
H Differential Phase (DIFF PHASE)
H Differential Gain (DIFF GAIN)
H Chrominance-Luminance Delay (YC DELAY)
H Chrominance-Luminance Gain (YC GAIN)
H Signal-to-Noise Ratio (SNR WGT/FLAT)
H Frequency Response (FREQ FCC or AVG and FREQ DETAIL)
H Group Delay (GRPDLYmax and GRPDLYmin)
H Sync Amplitude (SYNC AMPL)
H Burst Amplitude (BURST AMPL)
H Bar Amplitude (BAR AMPL)
H 2T K-Factor (2T K-FACTOR)
H Luminance Nonlinearity (LUM NON-LIN)
H Hum (HUM)
Configure the Zero Carrier Reference Pulse T rigger Output
The Zero Carrier Reference Pulse Trigger Output synchronizes a
demodulator when you take hum measurements. You can configure
the output to OFF or to any line from 10 – 20 (VM100) or 7 – 20
(VM101). See page 3–16 for information about using the Zero
Carrier Reference Pulse Trigger Output.
Perform the following steps to configure the Zero Carrier Reference
Pulse Trigger Output or use the CONfig:ZCRp remote command on
page B–45:
1. 2. 3. 4.
1–10
Press the CONFIG
button.
Select
.
Select or Line
10 – 20 (VM100)
or Line 7 – 20
(VM101).
Press the MEAS
button to exit.
VM100 & VM101 User Manual
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