Service Manual
MPEG Test System
Compaq Prosignia Platform
071-0151-00
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com
Copyright © T ektronix, Inc. All rights reserved.
T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
T ektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
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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, T ektronix, at its option, either will repair the defective product without charge for parts and labor,
or will provide a replacement in exchange for the defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of the warranty period and make suitable arrangements for the performance of service. Customer shall be
responsible for packaging and shipping the defective product to the service center designated by T ektronix, 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 T ektronix 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. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than T ektronix 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-T ektronix 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 CUST OMER 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.
Table of Contents
Specifications
Operating Information
General Safety Summary ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting Tektronix xvi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Conditions 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications, Data Store System 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics, Real-Time Analyzer 1–13. . . . . . . . . . . . . . . . . . . . . . . . . .
Power Specifications 1–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical (Physical) Characteristics 1–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Characteristics 1–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Information 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Data Store System Input and Outputs 2–7. . . . . . . . . . . . . . . . . . . . .
Connecting the Real-Time Analyzer (RTA) Input and Outputs 2–12. . . . . . . . . . . . . .
First Time Operation 2–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Registry Values 2–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation
Theory of Operation 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Store 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Real-Time Analysis 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification
Performance Verification, Data Store System 4–1. . . . . . . . . . . . . . . . . . .
Verification Interval 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Incoming Inspection T est 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prerequisites 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Required 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Definitions 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T est Record 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure Structure 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power On/Log In Procedure 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Data Files 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal Clock T est 4–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G.703 I/O Port T ests 4–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TTL 50 Ohm Port Tests 4–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Mbits/s (RS-422) Port T ests 4–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ECL Parallel Port T ests 4–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ECL Serial Port T ests 4–56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MPEG Test System Prosignia Platform
i
Table of Contents
Adjustment Procedures
Maintenance
Performance Verification, Real-Time Analyzer 4–67. . . . . . . . . . . . . . . . . .
Equipment Required 4–67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T est Record 4–68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Definitions 4–69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RTA Verification Procedures 4–69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oscilloscope Setups 4–90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading the T est Files Onto the Reference System 4–93. . . . . . . . . . . . . . . . . . . . . . .
Creating the the Reference System Configuration Profile 4–95. . . . . . . . . . . . . . . . . .
Adjustment Procedures 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Required 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Definition 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oscillator Frequency Adjustment 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handling Static-Sensitive Components 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning and Inspection 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Replacement Instructions 6–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Server Diagnostics and Data Store Troubleshooting 6–12. . . . . . . . . . . . . . . . . . . . . .
Real-Time Analyzer Troubleshooting 6–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repackaging 6–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options
Replaceable Parts
Options 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Parts 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module Servicing 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Parts List 8–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii
MPEG Test System Prosignia Platform
Appendices
Table of Contents
Appendix A:
Software Repair (Serial Number B029999 and Below) A–1. . . . . . . . .
If an Application Locks A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating and Using an Emergency Repair Disk A–2. . . . . . . . . . . . . . . . . . . . . . . . .
Reloading the MTS100 MPEG Test System Application Software A–4. . . . . . . . . .
Installing the Software on a New System Disk A–13. . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B:
Software Repair (Serial Number B030000 to B039999) B–1. . . . . . . .
If an Application Locks B–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating and Using an Emergency Repair Disk B–2. . . . . . . . . . . . . . . . . . . . . . . . .
Reinstalling the MPEG T est System Software B–5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Software on a New System Disk B–5. . . . . . . . . . . . . . . . . . . . . . . . . .
Upgrading Real-Time Analyzer Firmware B–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C:
Software Repair (Software Version 2.2 and Above) C–1. . . . . . . . . . .
If an Application Locks C–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating and Using an Emergency Repair Disk C–3. . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Software on a New System Disk C–5. . . . . . . . . . . . . . . . . . . . . . . . . .
Reinstalling the MPEG T est System Software C–12. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing SNMP Service C–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Windows NT 4.0 Service Pack 5 C–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Upgrading Real-Time Analyzer Firmware C–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix D:
MPEG Test System Application Software D–1. . . . . . . . . . . . . . . . . . .
Software Version 2.0 D–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Version 2.1 D–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Version 2.2 D–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Version 2.5 D–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Version 3.0 D–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MPEG Test System Prosignia Platform
iii
Table of Contents
List of Figures
Figure 1–1: Pulse specification for a G.703 8.448 MHz pulse 1–3. . . . . . .
Figure 1–2: Pulse specification for a G.703 34.368 MHz pulse 1–5. . . . . .
Figure 1–3: Parallel data timing, 188-byte packets 1–7. . . . . . . . . . . . . . .
Figure 1–4: Parallel data timing, 204-byte packets 1–8. . . . . . . . . . . . . . .
Figure 1–5: Timing diagram for the ECL serial port 1–9. . . . . . . . . . . . .
Figure 1–6: ECL Timing diagram with control port 1–10. . . . . . . . . . . . . .
Figure 1–7: Timing for the TTL port and the separate
clock input 1–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1–8: Timing diagram for the 10 megabit Serial port 1–12. . . . . . . .
Figure 1–9: Parallel data timing, 188-byte packets 1–14. . . . . . . . . . . . . . .
Figure 2–1: The MTS100 MPEG Test System 2–3. . . . . . . . . . . . . . . . . . .
Figure 2–2: Server voltage selection switch 2–4. . . . . . . . . . . . . . . . . . . . .
Figure 2–3: The rear panel of the server 2–5. . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–4: MPEG Test System software key 2–5. . . . . . . . . . . . . . . . . . . .
Figure 2–5: Data Store input and output ports 2–8. . . . . . . . . . . . . . . . . .
Figure 2–6: Real-Time Analyzer input and
output ports (computer rear) 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–7: RTA output to Data Store input connection 2–13. . . . . . . . . . .
Figure 3–1: Test System block diagram 3–2. . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–1: Setup for measuring internal clock output accuracy 4–8. . .
Figure 4–2: Setup for measuring 8 Mbits/s signal parameters 4–11. . . . . .
Figure 4–3: Setup for testing G.703 8.448 Mbits/s
slave acquisition 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–4: Example file comparison results 4–14. . . . . . . . . . . . . . . . . . . .
Figure 4–5: Setup for testing G.703 8.448 Mbits/s
master generation 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–6: Setup for measuring 34 Mbits/s signal parameters 4–17. . . . .
Figure 4–7: Setup for testing G.703 34.368 Mbits/s
slave acquisition 4–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–8: Setup for testing G.703 34.368 Mbits/s
master generation 4–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–9: Setup for measuring TTL 50 ohm clock
pulse amplitude 4–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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MPEG Test System Prosignia Platform
Table of Contents
Figure 4–10: TTL 50 ohm slave acquisition and
master generation setup 4–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–11: Setup for measuring the pulse generator output 4–31. . . . . .
Figure 4–12: Setup for checking 50 ohm external
clock generation 4–32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–13: 10 MHz signal interconnect fixture 4–34. . . . . . . . . . . . . . . . .
Figure 4–14: Setup for checking 10 Mbit serial port high speed
clock slave acquisition and master generation 4–35. . . . . . . . . . . . . . . .
Figure 4–15: Setup for measuring the pulse generator output 4–42. . . . . .
Figure 4–16: Setup for checking 10 Mbit external
clock generation 4–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–17: Setup for checking ECL parallel port
data transfer 4–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–18: Setup for measuring the pulse generator output 4–49. . . . . .
Figure 4–19: Setup for checking ECL parallel port generation with
an external clock 4–50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–20: Setup for checking ECL parallel port
master acquisition and slave generation 4–52. . . . . . . . . . . . . . . . . . . . .
Figure 4–21: Setup for checking ECL serial port
slave acquisition and master generation 4–56. . . . . . . . . . . . . . . . . . . . .
Figure 4–22: Setup for measuring the pulse generator output 4–60. . . . . .
Figure 4–23: Setup for checking ECL serial port generation with
an external clock 4–61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–24: Setup for checking ECL serial port
slave generation 4–63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–25: Initial Real-Time Analyzer verification setup 4–70. . . . . . . .
Figure 4–26: Breakout box for LVDS port tests 4–72. . . . . . . . . . . . . . . . . .
Figure 4–27: Reconfigure the hardware connections 4–82. . . . . . . . . . . . . .
Figure 4–28: Hardware connections for verifying
Modified ECL input 4–84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–29: Equipment setup for verifying data capture 4–86. . . . . . . . .
Figure 5–1: Location of the 8.448 MHz oscillator adjustment 5–3. . . . . .
Figure 5–2: The Service menu 5–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5–3: Setup for adjusting the clock frequency 5–5. . . . . . . . . . . . . .
Figure 6–1: Side view of the server (left cover removed) 6–5. . . . . . . . . . .
Figure 6–2: Removing the Data Store circuit board 6–6. . . . . . . . . . . . . .
Figure 6–3: Removing Data Store hard disk drives 6–9. . . . . . . . . . . . . . .
Figure 6–4: Proliant rear panel securing screws
(shown with video card installed) 6–10. . . . . . . . . . . . . . . . . . . . . . . . . .
MPEG Test System Prosignia Platform
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Table of Contents
Figure 6–5: The Data Store Administrator application window 6–12. . . .
Figure 6–6: The Data Store Administrator File menu 6–13. . . . . . . . . . . . .
Figure 6–7: FAT Information 6–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–8: The Partitioning dialog box 6–14. . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–9: Location of replaceable components in the
Data Store system 6–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–10: Packing illustration 6–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8–1: MTS100 MPEG Test System 8–8. . . . . . . . . . . . . . . . . . . . . . .
Figure A–1: The Repair Disk Utility dialog box A–2. . . . . . . . . . . . . . . . . .
Figure A–2: Repair disk warning message A–3. . . . . . . . . . . . . . . . . . . . . .
Figure A–3: The Tektronix MPEG Test System V2.0 window A–5. . . . . .
Figure A–4: The Run dialog box A–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure A–5: The MPEG Test System Software Installation
dialog box A–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure A–6: Specifying the destination directory A–7. . . . . . . . . . . . . . . . .
Figure A–7: The Select Program Folder dialog box A–8. . . . . . . . . . . . . . .
Figure A–8: The progress dialog box A–8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure A–9: Information dialog box A–9. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure A–10: Notice to reboot your system A–9. . . . . . . . . . . . . . . . . . . . . .
Figure A–11: The Information dialog box A–10. . . . . . . . . . . . . . . . . . . . . . .
Figure A–12: The Restart Windows NT dialog box A–10. . . . . . . . . . . . . . .
Figure A–13: The Tektronix MPEG Test System V2.0 window A–11. . . . .
Figure A–14: Settings for MPEG Test System systems with
serial numbers below B020000 A–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B–1: Select the locked application in the
Task Manager window B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B–2: The Repair Disk dialog box B–3. . . . . . . . . . . . . . . . . . . . . . . .
Figure B–3: All data on the disk will be erased B–4. . . . . . . . . . . . . . . . . .
Figure B–4: Start the User Manager B–7. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B–5: The New User window B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B–6: The system startup and recovery options B–8. . . . . . . . . . . .
Figure C–1: Rear Panel (MTS215 shown) showing parallel port and
software protection key C–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vi
MPEG Test System Prosignia Platform
List of Tables
Table of Contents
Table 1–1: G.703 — 8.448 MHz 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–2: G.703 — 34.368 MHz 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–3: ECL parallel, serial, and control ports 1–6. . . . . . . . . . . . . . .
Table 1–4: ECL parallel data pinout 1–7. . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–5: ECL serial data pinout 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–6: ECL control port pinout 1–10. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–7: 50 ohm TTL I/O 1–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–8: TTL 50 ohm Clock In port 1–11. . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–9: 10 megabit serial port (RS-422 levels I/O Port) 1–12. . . . . . . .
Table 1–10: 10 megabit serial port pinout 1–12. . . . . . . . . . . . . . . . . . . . . .
Table 1–11: PLL 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–12: Parallel input port 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–13: Parallel output port 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–14: Parallel data pinout 1–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–15: ASI input port 1–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–16: ASI output port 1–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–17: Power 1–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–18: Power requirements 1–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–19: Data Store board mechanical characteristics 1–16. . . . . . . . .
Table 1–20: MPEG Test System mechanical characteristics 1–16. . . . . . .
Table 1–21: Environmental characteristics 1–17. . . . . . . . . . . . . . . . . . . . .
Table 1–22: Safety standards 1–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–23: Safety certification compliance 1–17. . . . . . . . . . . . . . . . . . . . .
Table 1–24: Certifications and compliances 1–18. . . . . . . . . . . . . . . . . . . . .
Table 2–1: Estimated maximum cable lengths 2–11. . . . . . . . . . . . . . . . . .
Table 2–2: Values for DefaultAlwaysDialogBox
registry parameter 2–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–1: Manuals containing the functional check 4–1. . . . . . . . . . . . .
Table 4–2: Required equipment 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–3: The I/O port tests 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–4: Internal clock accuracy limits 4–9. . . . . . . . . . . . . . . . . . . . . .
Table 4–5: Required equipment list 4–67. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5–1: Required equipment list 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . .
MPEG Test System Prosignia Platform
vii
Table of Contents
Table 6–1: Static susceptibility 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 6–2: Identifying defective data store disks 6–16. . . . . . . . . . . . . . . . .
Table 6–3: Correct RTA DIP switch configuration 6–17. . . . . . . . . . . . . . .
Table 6–4: Packaging Material 6–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–1: Power cord options 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table C–1: Manuals for MTS100 Series version 2.x software C–12. . . . . .
viii
MPEG Test System Prosignia Platform
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.
While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
Injury Precautions
Use Proper Power Cord. To avoid fire hazard, use only the power cord specified
for this product.
Avoid Electric Overload. To avoid electric shock or fire hazard, do not apply a
voltage to a terminal that is outside the range specified for that terminal.
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.
Avoid Electric Shock. To avoid injury or loss of life, do not connect or disconnect
probes or test leads while they are connected to a voltage source.
Ground the Product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
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
MPEG Test System Prosignia Platform
Use Proper Power Source. Do not operate this product from a power source that
applies more than the voltage specified.
Use Proper V oltage Setting. Before applying power, ensure that the line selector is
in the proper position for the power source being used.
ix
General Safety Summary
Provide Proper Ventilation. To prevent product overheating, provide proper
ventilation.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Symbols and Terms
T erms 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.
T erms 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. The following symbols may appear on the product:
Protective Ground
(Earth) T erminal
Certifications and
Compliances
DANGER
High Voltage
Refer to the specifications section for a listing of certifications and compliances
that apply to this product.
x
ATTENTION
Refer to Manual
Double
Insulated
MPEG Test System Prosignia Platform
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, disconnect the main power by means
of the power cord or, if provided, the power switch.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.
MPEG Test System Prosignia Platform
xi
Service Safety Summary
xii
MPEG Test System Prosignia Platform
Preface
This manual contains service information for Tektronix MPEG Test Systems that
use the Compaq Prosignia 500 platform. Please read this introduction before
doing any repair or service work on the instrument.
This MPEG Test System is composed of a personal computer (hereafter called
the Server) that contains customized hardware and software. The software
applications are documented in the user manuals that arrived with your Server.
The information included in this manual explains how to verify, service,
troubleshoot, and repair the test system to the module level:
H Specifications describes functional characteristics and performance require-
ments for the MPEG Test System.
H Operating Information tells you how to install and operate the instrument.
H Theory of Operation provides descriptions of the test system modules.
H Performance Verification describes how to verify the functional performance
of the test system.
H Adjustment Procedures describes how to adjust the oscillator frequency.
H Maintenance contains the following information:
H How to safely handle static sensitive modules and components
H How to remove and replace modules
H Diagnostic and Troubleshooting information and procedures
H Options.
H Replaceable Parts List gives all module and mechanical parts that comprise
the test system. Parts are identified on an indexed illustration to make them
easier to identify.
H The appendices consist of the following items:
H Software Repair to help you replace damaged software.
H MTS100 Test System Application Software is the list of directories and
files that make up the applications.
MPEG Test System Prosignia Platform
xiii
Preface
Related Manuals
Manual Conventions
For operating information, always refer to the Tektronix MPEG Test System
documentation that is appropriate to your installed version of software. Refer to
the parts list beginning on page 8–4 for a list of manuals by version number.
Consult the readme file, C:\Mts100\Readme.txt or C:\Mts200\Readme.txt to
discover the installed software version.
The following terms and conventions are used throughout this manual:
H The term test system is used interchangeably with the more formal term
MPEG Test System.
H The term server refers to the personal computer (PC) that hosts the MPEG
Test System.
Before You Begin
H Signal names that have overbars
To prevent injury to yourself or damage to the test system, fulfill the following
requirements before you attempt service:
H Be sure you are a qualified service person.
H Read the Safety Summary found at the beginning of this manual.
H Read the Service Strategy section, below.
WARNING. When using this manual to service your test system, be sure to heed
all warnings, cautions, and notes. Failure to attend to this information could
result in injury to yourself, damage to your test system, or lost or corrupt data.
represent active low signals.
xiv
MPEG Test System Prosignia Platform
Service Strategy
Preface
This manual contains the following MPEG Test System maintenance and repair
procedures:
H Performance verification procedures
H Adjustment procedures
H Periodic maintenance
H Module removal and replacement
H Module-level fault diagnosis
Once you isolate a problem with a module, use the Replaceable Parts List in this
manual to determine the correct module part number to order from Tektronix.
MPEG Test System Prosignia Platform
xv
Preface
Contacting Tektronix
Product
support
Service
support
For other
information
To write us
Web site
For questions about using Tektronix measurement products, call
toll free in North America:
1-800-833–9200
6:00 a.m. – 5:00 p.m. Pacific time
Or contact us by e-mail:
tm_app_supp@tek.com
For product support outside of North America, contact your
local Tektronix distributor or sales office.
Tektronix offers extended warranty and calibration programs as
options on many products. Contact your local Tektronix
distributor or sales office.
For a listing of worldwide service centers, visit our web site.
In North America:
1-800-833–9200
An operator can direct your call.
Tektronix, Inc.
P.O. Box 500
Beaverton, OR 97077–0001
USA
www.tektronix.com
xvi
MPEG Test System Prosignia Platform
Specifications
Specifications
The tables in this section list the electrical, physical, and environmental
characteristics of the MPEG Test System. Refer to the following definitions for
an explanation of each specification table column heading:
H Characteristics. Characteristics are properties of the product. Characteristics
identified with a check mark (n) are considered to be binding on the
company (seller), and can be verified by performing the appropriate portions
of the Performance Verification procedure or by a separate and available
procedure.
H Descriptions. Descriptions are statements that define the characteristic, often
in limit form.
H Supplemental Information. Supplemental information explains or adds to
the information in the performance requirement column; it may include
typical performance characteristics for the instrument. Statements in this
column are not considered to be guaranteed performance and are not
ordinarily supported by a performance verification procedure.
Performance Conditions
The specifications are valid for test systems under the following conditions:
H The test system is operating within the environmental limits listed in
H The test system has been adjusted at 25_ C ±5_ C.
H The test system has been operating a minimum of 20 minutes and has
Table 1–21.
reached normal operating temperature.
MPEG Test System Prosignia Platform
1–1
Specifications
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Electrical Specifications, Data Store System
The following tables pertain to the MPEG Test System Data Store I/O ports.
T able 1–1: G.703 — 8.448 MHz
Characteristic Description Supplemental information
Standards Conformance
Line Encoding
n Serial Bit Rate
Generation/Acquisition T est
БББББББББ
Input
Voltage Levels
ББББББББ
ББББББББ
ББББББББ
Return Loss (75 ohm)
ББББББББ
ББББББББ
ББББББББ
Connector
Jitter Tolerance
ББББББББ
ББББББББ
Output
n
Pulse Width, nominal
n
Pulse “Mark” Amplitude
n
No-Pulse “Space” Voltage
Pulse Shape
ББББББББ
Required Receiver Termination
Jitter
ББББББББ
ББББББББ
ББББББББ
ББББББББ
ББББББББ
ITU-CCITT G.703, G.823
HDB3
8.448 Mbyte/s ± 10 ppm
Error free
ББББББББ
Tested with a 10 MB file (within the constraints of
synchronization)
ББББББББББББ
Standard level within 0 to 4 dB cable attenuation at
ББББББББ
ББББББББ
ББББББББ
ББББББББ
ББББББББ
ББББББББ
Male SMB
1/2 clock
ББББББББББББ
ББББББББББББ
Standard Levels:
Mark from 2.033 V to 2.607 V
ББББББББББББ
Space from –0.237 to +0.237 V
12 dB, 211 kHz to 422 kHz
ББББББББББББ
18 dB, 422 kHz to 8.448 MHz
ББББББББББББ
14 dB, 8.448 MHz to 12.672 MHz
ББББББББББББ
Shared with the 34.36 megabit input
177 ns peak-to-peak 20 Hz to 400 Hz
ББББББББ
ББББББББ
ББББББББББББ
23.6 ns peak-to-peak 3 kHz to 400 kHz
ББББББББББББ
Log prorated – 400 Hz to 3 kHz
59 ns
2.37 V ± 0.237 V
0 ± 0.237 V
ББББББББÁББББББББББББ
Conforms to 8.448 MHz Pulse Mask, G.703 Figure 16
(see Figure 1–1)
Resistive, 75 ohm nominal
ББББББББ
ББББББББ
ББББББББ
ББББББББ
ББББББББ
15 ns peak-to-peak with a 20 Hz lower cut-off and a
ББББББББББББ
400 kHz upper cut-off filter
ББББББББББББ
5 ns peak-to-peak with a 3 kHz lower cut-off and a 400
ББББББББББББ
kHz upper cut-off filter
ББББББББББББ
Allows a cascade of ten different regenerators before
ББББББББББББ
system limit is reached
1–2
MPEG Test System Prosignia Platform
T able 1–1: G.703 — 8.448 MHz (cont.)
Á
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Characteristic Supplemental informationDescription
Specifications
Á
Á
Á
Connector
Return Loss
ББББББББ
ББББББББ
ББББББББ
Male SMB
ББББББББ
ББББББББ
ББББББББ
2.370 V
0.237 V 0.237 V
1.185 V
12 dB – 211 kHz to 422 kHz
ББББББББББББ
18 dB – 422 kHz to 8.448 MHz
ББББББББББББ
14 dB – 8.448 to 12.672 MHz
ББББББББББББ
69 ns
Nominal
pulse
35 ns
Figure 1–1: Pulse specification for a G.703 8.448 MHz pulse
MPEG Test System Prosignia Platform
0 V
0.474 V 0.474 V 0.474 V
0.237 V 0.237 V
49 ns
59 ns
100 ns
118 ns
1–3
Specifications
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Á
T able 1–2: G.703 — 34.368 MHz
Characteristic Description Supplemental information
Standards Conformance
Connector
Line Encoding
n Generation/Acquisition T est
БББББББББ
n Serial Bit Rate
Input
Voltage Levels
ББББББББ
ББББББББ
ББББББББ
ББББББББ
Return Loss (75 ohm)
ББББББББ
ББББББББ
Connector
Jitter Tolerance
ББББББББ
ББББББББ
ББББББББ
Output
Pulse Width
n
Pulse Mark Amplitude
n
No-Pulse Space Voltage
Pulse Shape
ББББББББ
Required Receiver Termination
Jitter
ББББББББ
ББББББББ
ББББББББ
ББББББББ
Return Loss
ББББББББ
ББББББББ
ББББББББ
ITU-CCITT G.703, G.823
Male SMB
HDB3
Error free
ББББББББ
Tested with a 10 MB file
ББББББББББББ
(within the constraints of synchronization)
34.368 Mbps ± 20 ppm
ББББББББ
ББББББББ
ББББББББ
ББББББББ
Standard level within 0 to 4 dB cable attenuation at
ББББББББББББ
1/2 clock
ББББББББББББ
Standard level:
ББББББББББББ
Mark from 0.9 V to 1.1 V
Space from –0.1 V to +0.1 V
ББББББББББББ
12 dB 860 kHz to 1.72 MHz
ББББББББ
ББББББББ
Male SMB
ББББББББББББ
18 dB 1.72 MHz to 34.368 MHz
ББББББББББББ
14 dB 34.368 to 51.55 MHz
Shared with the 8 megabit input
43.7 ns peak-to-peak – 100 Hz to 1 kHz
ББББББББ
ББББББББ
ББББББББ
ББББББББББББ
4.37 ns peak-to-peak – 10 kHz to 800 kHz
ББББББББББББ
Log prorated – 1 kHz to 10 kHz
ББББББББББББ
14.5 ns nominal
1.0 V ± 0.1 V
0 ± 0.1 V
Conforms to 34.368 MHz Pulse Mask, Figure
ББББББББÁББББББББББББ
17/G.703 (see Figure 1–2 )
75 ohm nominal resistive
10 ns peak-to-peak with a 100 Hz lower cut-off and an
ББББББББ
ББББББББ
ББББББББ
ББББББББ
800 kHz upper cut-off filter
ББББББББББББ
2.45 ns peak-to-peak with a 10 kHz lower cut-off and
ББББББББББББ
an 800 kHz upper cut-off filter
ББББББББББББ
Allows a cascade of ten different regenerators before
ББББББББББББ
system limit is reached
ББББББББ
ББББББББ
ББББББББ
12 dB – 860 kHz to 1.72 MHz
ББББББББББББ
18 dB – 1.72 MHz to 34.368 MHz
ББББББББББББ
ББББББББББББ
14 dB – 34.368 MHz to 51.55 MHz
1–4
MPEG Test System Prosignia Platform
1.0 V
0.5 V
Specifications
17 ns
Nominal
pulse
0.1 V 0.1 V
8.65 ns
0 V
0.1 V 0.1 V
0.2 V 0.2 V 0.2 V
12.1 ns
14.55 ns
24.5 ns
29.1 ns
Figure 1–2: Pulse specification for a G.703 34.368 MHz pulse
MPEG Test System Prosignia Platform
1–5
Specifications
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T able 1–3: ECL parallel, serial, and control ports
Characteristic Description Supplemental information
Connector
БББББББББ
БББББББББ
БББББББББ
n Generation/Acquisition T est
БББББББББ
Master/Slave
Slave/Master (w/control)
БББББББББ
Digital Format
Female D25
ББББББББ
Female D25
ББББББББ
Female D9
ББББББББ
All error free
ББББББББ
ББББББББ
Parallel Data (pinout described in Table 1–4 )
ББББББББББББ
Serial Data (pinout described in Table 1–5)
ББББББББББББ
Flow Control (pinout described in Table 1–6)
ББББББББББББ
Tested with a 10 MB file at maximum data rates
(within the constraints of synchronization)
ББББББББББББ
ББББББББББББ
Binary , positive logic
Input
Maximum Data Rate
Serial: 55 Mbps
Parallel: 60 Mbps (7.5Mbytes/s)
Minimum Data Rate Clock Rate: 1 MHz
Serial: 1 Mbps
Parallel: 1 Mbps (125 Kbytes/s)
Signal Level Amplitude
Time Reference
Differential ECL, Compliant with the ECL 100K levels
Rising edge of the clock
Output
Maximum Data Rate
ББББББББ
Minimum Data Rate
ББББББББ
ББББББББÁББББББББББББ
ББББББББÁББББББББББББ
Serial: 55 Mbps
Parallel: 60 Mbps (7.5 Mbytes/s)
Clock rate: 1 MHz
Serial: 1 Mbps
Parallel: 1 Mbps (125 Kbytes/s)
Clock to Data Timing Data changes within 5 ns of falling clock edge
Signal Level Amplitude
Required Receiver Termination
Differential ECL,compliant with the ECL 100K levels
110 ohm, line-to-line
1–6
MPEG Test System Prosignia Platform
T able 1–4: ECL parallel data pinout
ECL parallel port Pin Function Pin Function
1 DCLK 14 DCLK
1
2
3
4
5
6
7
8
9
10
11
12
13
Asserted Low differential signal.
2 Ground 15 Ground
14
3 DA TA 7 16 DA TA 7
15
4 DA TA 6 17 DA TA 6
16
17
5 DA TA 5 18 DA TA 5
18
6 DA TA 4 19 DA TA 4
19
7 DA TA 3 20 DA TA 3
20
8 DA TA 2 21 DA TA 2
21
21
9 DA TA 1 22 DA TA 1
22
23
10 DATA 0 23 DATA 0
24
11 DVALID 24 DVALID
25
12 PSYNC 25 PSYNC
13 Shield
Specifications
Active edge
DCLK
PSYNC
Data 0.....7
DVALID
Stuffing bytes
Figure 1–3: Parallel data timing, 188-byte packets
Byte 1Byte 188Byte 187
MPEG Test System Prosignia Platform
1–7
Specifications
Packet length = 188 bytes + 16 dummy bytes
Clock
Data[0 . . 7]
Dvalid
Psync
(16) SYNC 1 2 187 SYNC 1 2(1) (16)
Packet length = 204 bytes (Reed-Solomon encoded)
Clock
Data[0 . . 7]
Dvalid
Psync
203 SYNC 1 2 203 SYNC 1 2
Figure 1–4: Parallel data timing, 204-byte packets
1–8
MPEG Test System Prosignia Platform
T able 1–5: ECL serial data pinout
ECL serial port Pin Function
1 DCLK
1
2
3
4
5
6
7
8
9
10
11
12
13
Asserted Low differential signal.
2 Ground
14
3 - 9 Not Managed
15
10 DA TA 0
16
17
11 DVALID
18
12 PSYNC
19
13 Shield
20
14 DCLK
21
21
15 Ground
22
23
16 – 22 Not Managed
24
23 DA TA 0
25
24 DVALID
25 PSYNC
Specifications
Active edge
data_clock
D0 Data
data_valid
Figure 1–5: Timing diagram for the ECL serial port
MPEG Test System Prosignia Platform
1–9
Specifications
T able 1–6: ECL control port pinout
ECL control port Pin Function
1 CHCLK (Channel Clock)
2 Ground
1
2
2
3
4
5
Asserted Low differential signal.
3 CHSYNC (Channel Sync)
6
4 CHCLKEN (Channel Clock Enable)
7
5 Shield
8
6 CHCLK (Channel Clock)
9
7 Ground
8 CHSYNC (Channel Sync)
9 CHCLKEN (Channel Clock Enable)
Active edge
demand_clock
CHCLK
demand_clock_enable
CHCLKEN
Data and stream
data_valid
data_clock
DCLK
Figure 1–6: ECL Timing diagram with control port
Stuffing bytes
1–10
MPEG Test System Prosignia Platform
T able 1–7: 50 ohm TTL I/O
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Characteristic Description Supplemental information
Specifications
Connectors
Rise & Fall Times
n Signal swing into 50 ohm (output)
ББББББББББ
Digital Format
Maximum Data Rate
Male SMB
Low < 0.3 V
ББББББББ
High > 2.65 V
Between 2 ns and 6.5 ns
ББББББББББББ
Binary , positive logic
45 Mbps
Minimum Data Rate 1 Mbps
n Generation/Acquisition T est
ББББББББББ
Error free
ББББББББ
Tested with a 10 MB file at maximum data rates
ББББББББББББ
(within the constraints of the stop/start bits)
Termination
ББББББББББ
(input)
Timing Diagram
ББББББББББ
ББББББББÁББББББББББББ
50 ohm nominal resistive
DA TA signal is stable on the rising edge of the clock
ББББББББÁББББББББББББ
signal (see Figure 1–7)
Clock to Data Timing Data changes within 5 ns of falling clock edge
Signal Level Amplitude
(input)
ББББББББББ
ББББББББÁББББББББББББ
TTL Low < 0.8 V
High > 2.0 V
T able 1–8: TTL 50 ohm Clock In port
Characteristic Description Supplemental information
Clock port voltage levels
ББББББББББ
Termination
Range
ББББББББÁББББББББББББ
Clock
Data
TTL Low: t 0.8 V
TTL High: u 2.0 V
50 ohm, nominally resistive
125 kHz to 45 MHz
Figure 1–7: Timing for the TTL port and the separate clock input
MPEG Test System Prosignia Platform
1–11
Specifications
Á
Á
Á
T able 1–9: 10 megabit serial port (RS-422 levels I/O Port)
Characteristic Description Supplemental information
Connector
10 megabit Serial Voltage Levels
9-pin sub-miniature D-type
(Pinout shown in Table 1–10
Differential outputs measured single-ended
Output Low < 0.5 V
High > 2.5 V
Input Low < –0.5 V differential
High > 0.5 V differential
Common Mode Range ±5 Volts
10 megabit Serial Rise and Fall Times
Maximum Data Rate
Between 2 ns and 12 ns
10 Mbps
Minimum Data Rate 1 Mbps
Clock to Data Timing Data changes within 10 ns of falling clock edge
n Generation/Acquisition T est
БББББББББ
Error free
ББББББББ
Tested with a 10 MB file at maximum data rates
ББББББББББББ
(within the constraints of the stop/start bits)
T able 1–10: 10 megabit serial port pinout
10 megabit serial port Pin Function
1 DA TA IN
2 CLK IN
1
2
2
3
4
5
3 DA TA OUT
6
4 CLK OUT
7
5 Ground
8
6 DA TA IN
9
7 CLK IN
8 DA TA OUT
9 CLK OUT
1–12
Asserted Low differential signal.
Clock
Data
Figure 1–8: Timing diagram for the 10 megabit Serial port
MPEG Test System Prosignia Platform
T able 1–11: PLL
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Characteristic Description Supplemental information
Specifications
Range
Resolution
n Jitter
Settling Time
Frequency Accuracy
0.2 UI peak-to-peak over a 1000 UI delay
125 kHz to 60 MHz
1 Hz
3 seconds after frequency change
10 ppm ± resolution
Electrical Characteristics, Real-Time Analyzer
T able 1–12: Parallel input port
Characteristic
Connector
n Input Data Rate
ББББББББББ
Signal Amplitude, typical
Signal Common Mode Range, typical
T ermination, nominal 100 ohms resistive Line-to-line
Timing Reference Rising edge of clock
Clock-to-data Timing Data must be stable "5 ns of rising clock
Description
Female D25
60 Mbps maximum, 1 Mbps minimum
ББББББББББ
2.0 Vpp maximum, 100 mVpp minimum
–1.8 V to +2.5V
edge
Supplemental information
Pinout shown in Table 1–14
ББББББББББ
T able 1–13: Parallel output port
Characteristic
ББББББББББ
Connector
Signal Amplitude
ББББББББББ
n LVDS
n Modified ECL
ББББББББББ
Common Mode Voltage
ББББББББББ
n LVDS Output
ББББББББББ
ББББББББББ
n Modified ECL Output
MPEG Test System Prosignia Platform
Description
ББББББББББ
Female D25
LVDS or modified ECL levels, software
selectable
ББББББББББ
454 mVpp maximum, 247 mVpp minimum
454 mVpp maximum, 247 mVpp minimum
ББББББББББ
ББББББББББ
)0.70 V mininmum, )1.40V maximum
ББББББББББ
ББББББББББ
*1.80 V maximum, *1.50V minimum
Supplemental information
ББББББББББ
Pinout shown in Table 1–14
Modified Differential ECL is less than the
typical 100K ECL level of [700 mVpp
ББББББББББ
908 mVpp max, 494 mVpp min, differential
100 ohm line-to-line termination
908 mVpp max, 494 mVpp min, differential
ББББББББББ
100 ohm line-to-line termination
ББББББББББ
ББББББББББ
ББББББББББ
1–13
Specifications
T able 1–14: Parallel data pinout
ECL parallel port Pin Function Pin Function
1 DCLK 14 DCLK
1
2
3
4
5
6
7
8
9
10
11
12
13
Asserted Low differential signal.
2 Ground 15 Ground
14
3 DA TA 7 16 DA TA 7
15
4 DA TA 6 17 DA TA 6
16
17
5 DA TA 5 18 DA TA 5
18
6 DA TA 4 19 DA TA 4
19
7 DA TA 3 20 DA TA 3
20
8 DA TA 2 21 DA TA 2
21
21
9 DA TA 1 22 DA TA 1
22
23
10 DATA 0 23 DATA 0
24
11 DVALID 24 DVALID
25
12 PSYNC 25 PSYNC
13 Shield
Active edge
DCLK
PSYNC
Data 0.....7
DVALID
Stuffing bytes
Figure 1–9: Parallel data timing, 188-byte packets
Byte 1Byte 188Byte 187
1–14
MPEG Test System Prosignia Platform
T able 1–15: ASI input port
Á
Á
Á
Specifications
Characteristic
Connector
Description
BNC
Supplemental information
Female
Input Bit Rate 270 Mbps "100 ppm
Signal Amplitude, typical
800 mVpp maximum, 200 mVpp minimum
T ermination, nominal 75 ohms
Return Loss, typical
Data Formats
–17 dB minimum
Accepts both Burst and Packet modes
27 MHz to 270 MHz
T able 1–16: ASI output port
Characteristic
ББББББББББ
Connector
Output Bit Rate 270 Mbps "100 ppm
n Signal Amplitude
Rise and Fall Times, typical
Description
ББББББББББ
BNC
880 mVpp maximum, 500 mVpp minimum
1.2 ns maximum
Supplemental information
ББББББББББ
Female
Into a 75 ohm load
20% to 80%
MPEG Test System Prosignia Platform
1–15
Specifications
Power Specifications
T able 1–17: Power
Characteristics Performance requirements Supplemental information
Power Consumption
Data Store Board only 30 Watts
T able 1–18: Power requirements
Characteristics Performance requirements Supplemental information
Range Line Voltage 100 to 120 VAC (–10%, +6%)
220 to 240 VAC (–10%, +6%)
Line Frequency 60 Hz / 50 Hz
Fuse 8 / 4 A
Mechanical (Physical) Characteristics
T able 1–19: Data Store board mechanical characteristics
Characteristics Supplemental information
Dimensions
Height 3.40 inches (8.64 cm)
Width 5.5 inches (14 cm)
Length 13.9 inches (35.3 cm)
Net Weight 2.063 lbs. (.937 kg)
Shipping Weight 2.438 lbs. (1.107 kg)
T able 1–20: MPEG Test System mechanical characteristics
Characteristics Supplemental information
Dimensions Base unit (does not include monitor, keyboard, or mouse)
Height 21.93 inches (55.8 cm)
Width 8.96 inches (22.8 cm)
Length 17.25 inches (43.8 cm)
Net Weight 54.0 lbs. (20.5 kg) (without monitor – monitor is shipped separately)
Shipping Weight 72 lbs. (without monitor – monitor is shipped separately)
1–16
MPEG Test System Prosignia Platform
Environmental Characteristics
Á
Á
T able 1–21: Environmental characteristics
Characteristics Supplemental information
Temperature
Non-operating
Operating
Altitude
Non-operating
Operating
Humidity
Operating
Non-operating
T able 1–22: Safety standards
–20° C to +60° C, Maximum rate of change: 20° C/hour
°
+10
C to +35° C, Maximum rate of change: 5° C/hour
0 to 30,000 feet (9144 meters)
0 to 10,000 feet (3048 meters)
20% to 80% (Maximum 10% change/hour)
5-90% humidity, non-condensing
Specifications
Category Description
U.S. Nationally Recognized Testing
БББББББББ
Laboratory Listing
UL1950 – Safety of Information Technology Equipment, Including Electrical Business
ББББББББББББББББББББББ
Equipment
Canadian Certification CAN/CSA C22.2 No. 950 M89 – Safety of Information Technology Equipment, Including
Electrical Business Equipment
European Union Compliance Low Voltage Directive 73/23/EEC; amended by 93/68/EEC:
EN60950 – Safety of Information Technology Equipment, Including Electrical Business
Equipment
Additional Compliance IEC950 – Safety of Information Technology Equipment, Including Electrical Business Equipment
T able 1–23: Safety certification compliance
Category Description
Temperature (operating)
Altitude (maximum operating) 2000 Meters
Relative Humidity (maximum
operating)
Safety Class Class I – grounded product
+10° C to +35° C
80% for temperatures up to 31° C, decreasing linearly to 50% to at 40° C
MPEG Test System Prosignia Platform
1–17
Specifications
T able 1–24: Certifications and compliances
Category Standard
EC Declaration of Conformity Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility and Low V oltage
Directive 73/23/EEC for Product Safety.
Compliance was demonstrated to the following specifications as listed in the Official Journal of
the European Communities:
EN 50081-1 Emissions:
EN 55022 Class A Radiated and Conducted Emissions
EN 50082-1 Immunity:
IEC 801-2 Electrostatic Discharge Immunity
IEC 801-3 RF Electromagnetic Field Immunity
IEC 801-4 Electrical Fast Transient/Burst Immunity
IEC 801-5 Power Line Surge Immunity
Conditional Statements:
1) Using high quality shielded cables attached to the ECL Ser/Par and ECL Control ports
including the cables shipped with the instrument.
2) Using conductive tape applied inside the rear edge of the PC side panel.
Low Voltage directive 73/23/EEC, amended by 93/68/EEC:
EN 60950 Safety of Information Technology Equipment, Including
Electrical Business Equipment
1–18
MPEG Test System Prosignia Platform
Operating Information
Operating Information
This section contains installation instructions and gives a brief overview of how
to operate the MPEG Test System. For detailed operating information, see the
MPEG Test System user manual that pertains to your software. Refer to the parts
list beginning on page 8–4 for a list of manuals by version number. Refer to the
readme file, C:\Mts100\Readme.txt or C:\Mts200\Readme.txt to determine
the installed software version.
Installation
Retain the shipping cartons and padding in the event that additional shipment of
the MPEG Test System or any of its components is required.
CAUTION. To avoid damage to the test system during shipping, retain the
original shipping carton and use it if you need to ship the instrument back to
Tektronix for repair. Shipping the test system in any other packaging may void
the warranty.
Standard Accessories
Standard accessories are shipped with the test system; all items except the
monitor are in the carton containing the server. When you unpack a new test
system, check that the following items are included:
H Tektronix 17 inch monitor and the monitor cable; the monitor power cord is
shipped in the accessories package in the server carton
H Server with the Data Store board and Data Store disks already installed
H Keyboard
H Mouse
H Software key that is installed on the server parallel port
H 50 ohm terminator installed on the network port
H The MPEG Test System Installation Software CD-ROM
H MPEG2
H Back up copies of software and the associated documentation supplied by the
computer manufacturer.
Elementary Streams, Volume 1 CD-ROM
MPEG Test System Prosignia Platform
2–1
Operating Information
H Windows NT software and documentation package (Windows NT is
pre-loaded on the test system; the software is provided as a backup in case
the loaded version becomes corrupted)
H Windows NT emergency repair disk
H Two power cords (one for the server and one for the monitor)
H Six SMB-to-BNC adaptors, three with 50 ohm cables and three with 75 ohm
cables
H A nine-pin cable (use this cable on the ECL control port in order to meet
EMI requirements)
H A 25-pin cable (use this cable on the ECL parallel/serial port in order to meet
EMI requirements)
Assembling the
MPEG TestSystem
Service Manual Standard
Accessories
Before you begin to assemble the test system, make sure that you have selected
an appropriate location. The features of a good site include the following:
H A sturdy, level site that includes dedicated and properly grounded circuits,
air conditioning equipment, and static electricity protection for the test
system.
H A location that allows at least three inches (7.6 cm) clearance at the front and
back of the server for proper ventilation. You will probably want additional
access to the rear panel for connecting input and output cables.
H A place where no heavy electrical equipment will be located near the server.
After you have selected a good site, use the following procedure to assemble the
test system as shown in Figure 2–1.
The following media is shipped with each service manual:
H 063–2578–00 One floppy disk containing the files required for the
Data Store performance verification procedures
H 063–3203–00 A two-disc set of CDROMs containing the test transport
streams for the RTA performance verification procedures
2–2
MPEG Test System Prosignia Platform
Monitor
Operating Information
Software
key
Keyboard
Mouse
Server
Figure 2–1: The MTS100 MPEG T est System
1. Check that the input voltage selection switch, on the server rear panel, is set
to the appropriate input voltage. See Figure 2–2.
MPEG Test System Prosignia Platform
2–3
Operating Information
Line voltage selector switch
(shown in the 115 V position)
Figure 2–2: Server voltage selection switch
2. Connect the monitor cable from the monitor to the server rear panel video
port. See Figure 2–3.
3. Connect the keyboard to the server rear panel keyboard port.
4. Connect the mouse to the to the server rear panel mouse port.
2–4
MPEG Test System Prosignia Platform
Keyboard port
Mouse port
Operating Information
Video port
SCSI connector
RJ45-Ethernet port
BNC port
(50 W terminator installed)
Serial port
Parallel port
(where the software
key is installed)
Figure 2–3: The rear panel of the server
5. If it is not already installed, connect the software key to the server rear panel
parallel port. See Figures 2–3 and 2–4.
Figure 2–4: MPEG Test System software key
MPEG Test System Prosignia Platform
2–5
Operating Information
NOTE. If you need to use the parallel port for another function, such as a printer
port, connect that cable through the software key. Note that with the software key
installed, some peripherals may not work correctly.
6. If you are connecting the server to a network, connect it now and remove the
50 ohm BNC ethernet terminator. If you are not connecting the test system to
a network make sure that the 50 ohm terminator is installed on the BNC
port. See Figure 2–3.
7. Connect one of the two supplied power cords from the monitor to the power
source. See the Options section of this manual for power cord information.
8. Connect the other supplied power cord from the server to the power source.
Power Mains
The server and monitor are designed to operate from a single-phase power source
with one of its current-carrying conductors at or near earth ground (the neutral
conductor). Systems that have both current-carrying conductors live with respect
to ground, such as phase-to-phase or multi-phase systems, are not recommended.
A protective ground connection in the power cord is essential for safe operation.
CAUTION. This equipment is designed for connection to a grounded (earthed) AC
outlet. The grounding plug is an important safety feature. To avoid risk of
electrical shock or damage to your equipment, do not disable this feature.
The monitor operates on either 115 VAC or 230 VAC source without having to
set a voltage selection switch.
Mains Frequency . Both the server and the monitor operate at either 50 or 60 Hz
line frequencies.
CAUTION. The computer manufacturer recommends protecting the instrument
from power fluctuations and temporary interruptions with a regulating,
un-interruptable power supply (UPS). This device protects the hardware from
damage caused by power surges and voltage spikes. In addition, a UPS
continues to supply power if there is a power failure.
2–6
MPEG Test System Prosignia Platform
Operating Information
Power Cord Options
Parallel Port and Ethernet
The Software Enable Key
The server and monitor are delivered from the factory with power cords for
North American 60 Hz/117 VAC power supplies, unless purchased with a power
cord option. Table 7–1 in the Options section of this manual shows each
available power cord option.
You must install the software key (also called the HASP) on the parallel printer
port to operate the test system. In addition, the ethernet port requires a connection to a network or an external 50 ohm termination.
The software is enabled by a software enable key. See Figure 2–4 on page 2–5.
The software key is installed on the parallel port and is transparent to its
applications. Without the software key in place, the MPEG Test System software
will not operate.
The software key must remain on the server parallel port at all times.
NOTE. If you return the test system for service, you must also ship the software
key.
Ethernet Termination
If the test system is operating in a stand-alone mode, one of the ethernet
connectors must be terminated. When shipped, the server has a 50 ohm BNC
terminator installed on the ethernet connector. If the termination is not installed
when operating in a stand-alone mode, the software will generate network error
messages.
Connecting the Data Store System Input and Outputs
The Data Store system is an integral part of all MPEG Test Systems; it enables
transport stream capture and output at up to 60 Mbps.
Figure 2–5 on page 2–8 shows the Data Store System input and output (I/O)
connectors on the computer rear panel. A detailed description of each connector
follows the illustration. For I/O port specifications, refer to the Specifications
section of this manual.
Use the I/O ports that best suit your operating environment and signal sources.
To receive ASI input, use the optional D6002 DVB-PI adaptor. (Contact your
Tektronix representative for ordering information.)
MPEG Test System Prosignia Platform
2–7
Operating Information
ECL Parallel/Serial I/O Port
ECL control port
G.703 output
(8.448 Mbits/s)
G.703 output
(34.368 Mbits/s)
G.703
input
10 Mbit serial port Clock input
ECL parallel and
serial port
TTL 50 W serial port
Clock I/O
TTL 50 W serial port
Data I/O
Figure 2–5: Data Store input and output ports
The ECL Parallel/Serial I/O port receives and transmits MPEG-2 transport
streams at ECL levels. The port is differential, bidirectional, and operates
independently or in conjunction with the ECL Control port. The port transmits or
receives either parallel or serial data depending on the Data Store Administrator
application settings.
2–8
ECL Operating Modes. If the ECL Parallel/Serial I/O port is used independently
of the ECL Control port, there are three basic operating modes:
H Slave acquisition mode. Captures input signals using the ECL Parallel/Serial
I/O port clock signal as the timing source.
H Master generation mode. Outputs signals using the test system internal clock
as the timing source.
H Master generation with external clock mode. Outputs signals using the
external clock input (Clk In) as the timing source.
Using the ECL Parallel/Serial I/O port in conjunction with the ECL Control port
provides the following additional operating modes:
H Master acquisition mode. Captures input signals using control signals from
the ECL Control port to drive the signal source.
MPEG Test System Prosignia Platform
Operating Information
H Master acquisition with external clock mode. Same as Master aquisition
mode, but uses a timing signal from the external clock input (Clk In) as the
timing source.
H Slave generation mode. Outputs signals using the ECL Control port inputs as
the timing source.
NOTE. A“Master” generates the data transmission clock. A “Slave” returns an
external clock as the source.
Pinouts. For pinouts of the ECL Parallel/Serial I/O port, see Tables 1–4 and 1–5
beginning on page 1–7.
ECL Control Port
G.703 Output
(8.448 and 34.368 Mbit/s)
and G.703 Input
10 Mbit Serial Port
(RS-422 Levels I/O Port)
Using the ECL Control port is optional. This bidirectional differential control
port adds flexibility to the ECL Parallel and Serial Ports, providing three control
signals and two more operating modes. For a pinout of the ECL Control port, see
Table 1–6 on page 1–10.
The G.703 serial interface complies with the electrical characteristics of ITU-T
Recommendation G.703 (HDB3 code) for 8.448 Mbit/s and 34.368 Mbit/s.
The G.703 port operates in the following modes:
H Acquisition mode. Locks to the incoming signal and is self clocking.
H Generation (internal clock source) MODE. Uses an internal clock source.
The G.703 serial interface uses three Data Store circuit-board mounted SMB
connectors. One connector is a dedicated input for both bit rates. The other two
connectors are dedicated outputs, one for the 34.368 Mbit/s output and the other
for the 8.443 Mbit/s output. To reduce spurious emissions, connect only the
output being used.
The 10 Mbit Serial port transmits and receives MPEG transport signals and
includes bidirectional clocks and data pairs. The maximum operating frequency
is 10 Mbit/sec. The port uses RS-422 voltage levels with a line-to-line input
termination of 110 ohm. For a pinout of the 10MBit Serial port, see Table 1–10
on page 1–12.
The 10 Mbit Serial port uses the following signals:
H Data In and Data Out (MPEG serial bit streams).
H Clock In and Clock Out (continuous data transmission).
MPEG Test System Prosignia Platform
2–9
Operating Information
The 10 Mbit Serial port operates in the following modes:
H Acquisition mode. Captures an input signal using an external timing
reference.
H Internal generation mode. Generates an output signal using the MPEG Test
System internal clock as the timing reference.
H External generation mode. Generates an output signal using the Clock input
as the timing reference.
Clock Input
TTL 50 Ohm Serial Port
(Data & Clock I/O)
Data Store I/O Cables and
Mating Connectors
The Clk In connector provides an optional timing input for the ECL Serial, ECL
Parallel, TTL, and 10 Mbit Serial outputs. The input operates at a maximum
frequency of 45 MHz.
The TTL 50 ohm Serial Port consists of dedicated clock and data inputs that
transmit and receive at TTL levels. The Data signal is a serial bitstream that uses
a continuous data transmission clock. The maximum operating frequency is
45 Mbits/s.
The
TTL 50 ohm Serial Port operates in the following modes:
H Acquire mode. Captures an input signal.
H Internal Generation mode. Generates a signal locked to the internal clock.
H External Generation mode. Generates a signal locked to an external reference
supplied by the Clock Input.
The MPEG Test System includes adapters to connect the Data Store SMB
connectors to standard BNC connectors. You may also need to acquire or
assemble other signal-connecting cables and adapters to install the test system in
your facility.
2–10
Cable Lengths. Maximum cable length is a function of data rate, cable type, and
ambient environment as summarized in Table 2–1. In general, low data rates
tolerate long cable lengths better than high data rates. Low loss coaxial cable and
low capacitance properly pair-twisted cable support longer transmission paths
than do miniature coaxial cable or ribbon cable. Induced RF noise can further
limit usable cable length.
The only test system ports designed for data transmission are the G.703 I/O
ports. All other ports are intended for short-range interconnects. With most ports,
you must control cable delay matching to maintain clock-to-data timing margins,
or data integrity will suffer.
MPEG Test System Prosignia Platform
Operating Information
T able 2–1: Estimated maximum cable lengths
Port Rate, Mbps Maximum length Cable type Comments
G.703 8.448 275 meters Belden 8281 4 dB atten at
4.224 MHz
G.703 34.368 125 meters Belden 8281 4 dB atten at
17.18 MHz
10 MBit
(RS422)
10 MBit
(RS422)
TTL 10 50 meters RG58 type Calculated Value
TTL 50 25 meters RG58 type Calculated Value
ECL Parallel 1 50 meters Belden 8112 Calculated Value
ECL Serial 45 5 meters Belden 8112 Calculated Value
1 100 meters 24 AWG
unshielded
twisted pair
10 15 meters 24 AWG
unshielded
twisted pair
Ref. ANSI/TIA/
EIA-422-B-1994
Ref. ANSI/TIA/
EIA-422-B-1994
Adapters. The MPEG Test System includes six SMB-to-BNC adapter cables.
Three of the adapter cables match the impedance of the G.703 75 ohm inputs and
outputs. The other three match the impedance of the TTL 50 ohm Serial Port
(CLK I/O, DATA I/O, and CLK IN).
NOTE. Do not leave SMB-to-BNC adapter cables on unused G.703 outputs.
Doing so can cause the test system to exceed EMC emission requirements.
MPEG Test System Prosignia Platform
2–11
Operating Information
Connecting the Real-Time Analyzer (RTA) Input and Outputs
Systems with upgrade kit MTS1F05 installed include the Real-Time Analyzer.
Figure 2–6 shows the Real-Time Analyzer input and output (I/O) connectors on
the computer rear panel. A detailed description of each connector follows the
illustration. For I/O port specifications, refer to the Specifications section of this
manual.
LVDS/Mod ECL
output
LVDS/ECL/RS422
Level input
Input
ASI input
ASI output
Trigger input
Figure 2–6: Real-Time Analyzer input and output ports (computer rear)
You must provide input to the Real-Time Analyzer to monitor an MPEG-2 or
DVB bitsream. The RTA accepts LVDS or ECL parallel input or ASI serial
input. In the standard configuration, either LVDS or ECL parallel input is
accepted as the default. If you provide serial input, you must change the software
configuration before monitoring an input data stream. To change the software
configuration, see the Operating Basics section of the Real-Time Analyzer User
Manual.
2–12
MPEG Test System Prosignia Platform
Operating Information
Output to the
Data Store System
VGA board video port
(Install monitor here)
To capture and save portions of the input bitstream on the Data Store disks,
connect the parallel RTA output to the parallel Data Store input as shown in
Figure 2–7. Use the 25-conductor straight-through shielded cable provided with
the test system. From the Settings/Hardware Configuration menu, select
Modified ECL. For further details, see the Operating Basics section of the
MTS200 Series Real-Time Analyzer User Manual.
7
6
5
4
RTA-to-Data
3
Store cable
2
1
Figure 2–7: RT A output to Data Store input connection
MPEG Test System Prosignia Platform
2–13
Operating Information
Output to Other
Equipment
Trigger Input
The Real-Time Analyzer can output all or part of the input stream through
parallel and serial (ASI) connectors.
Parallel Output. Real-Time Analyzer parallel output is active only when the RTA
is running and analysis is occurring. The output level can be either LVDS or
modified ECL; refer to Table 1–13 on page 1–13 for parallel output characteristics.
Parallel output can be filtered by the Real-Time Analyzer software. For complete
information, refer to the MPEG Test System Real-Time Analyzer User Manual.
Serial (ASI) Output. With data input through the ASI connector, the serial output
is continuously active. With a parallel input, the serial output is disabled when
Data Storage through the parallel output occurs.
The Serial output stream is always equivalent to the input stream and is not
affected by selections made on the Filtering Configuration tab of the Real-Time
Analyzer Settings window.
Refer to Table 1–16 on page 1–15 for serial output characteristics.
The trigger input accepts a TTL level (0 to +5 V) signal you can use to control
capture of the Real-Time Analyzer input stream to the Data Store system
(MTS 215 only). You can configure the system to start/stop data capture on
either the rising edge (low to high transition) or the falling edge (high to low
transition) of the trigger signal. Refer to the Real-Time Analyzer User Manual for
further information.
2–14
MPEG Test System Prosignia Platform
First Time Operation
Operating Information
To power on the computer following installation, press the power switch on the
front panel of the server.
The Windows NT initialization process takes up to two minutes. Under normal
circumstances, no action is required until the Begin Logon message appears. (For
further information on the Windows NT initialization process, see the Windows
NT documentation included with the test system.) When the Begin Logon
message appears, simultaneously press the Ctrl + Alt + Delete keys to open
the Logon Information dialog box.
Logging On
Starting MPEG Test
System Applications
To log on to the test system, enter MTS100 in the User name box, leave the
Password box blank, and press ENTER (these are the default values set at the
factory). Use this logon for most of your work.
There are two other logons and passwords available. The first is guest with no
password. This level has only limited access to files and applications. The
second level is administrator with MPEG2 as the password. This user has
administrator privileges for the test system. You must use this logon when
performing all software upgrades.
CAUTION. The administrator user logon includes all privileges. If you are
connected to a network, you may have special privileges within the network. Do
not use this logon to perform normal operations.
Changing the Passwords. You can change passwords at this time. See the
Windows NT documentation for instructions. If you change any password, be
sure to create a new emergency repair disk as explained in the Software Repair
appendix of the test system user manuals.
When logon is complete, the Tektronix MPEG Test System program group
window appears, similar to the window shown below. Double-click the
appropriate icon to start the application.
Exiting MPEG Test System
Applications
MPEG Test System Prosignia Platform
To exit an MPEG Test System application, select Exit/Quit from the File menu
or click the close button in the upper-right corner of the application window.
The current configuration is preserved and used the next time you run the
application.
2–15
Operating Information
Shutting Down the
Tektronix MTS200 Series
MPEG Test System
Software Repair
To avoid loss of data and possible problems during subsequent Windows NT
initialization, always shut down Windows NT before switching the computer
power off. To shut down Windows NT, use the following procedure:
1. Select Shut Down from the Start menu.
2. In the Shut Down Windows dialog box, select Shut down the computer?,
and then click Yes.
CAUTION. Do not switch the computer power off until after the following
message appears: It is now safe to turn off your computer. Turning your
computer power off before this message appears can cause you to lose data and
may make restarting Windows NT more difficult.
After a few seconds, the Shutdown Computer window appears with the
following message: It is now safe to turn off your computer.
3. Press the power switch on the front of the computer to turn the computer off.
If the software does not run, it may be corrupted. A full set of software is
shipped with each MPEG Test System. You can reload all the software, including
the Windows NT operating system. Refer to Appendix A: Software Repair (to
Serial Number B029999) or Appendix B: Software Repair (Serial Number
B030000 and Above) for more information.
2–16
MPEG Test System Prosignia Platform
Changing Registry Values
When acquiring a signal over a long time with Version 1.0 of the MTS100
software, error checking occasionally stops the acquisition process. To prevent
error checking from stopping the acquisition process, you can set the value of the
DefaultPeriodeStatus registry parameter to 0, which eliminates error checking. In
MTS100 software versions 1.1 and above, it is no longer necessary to change the
value of the DefaultPeriodeStatus registry parameter for long acquisitions.
To turn off the display of the dialog box after every transfer, change the
DefaultAlwaysDialogBox registry parameter. The possible settings for the
DefaultAlwaysDialogBox are shown in Table 2–2.
Operating Information
T able 2–2:
Value Description
1 A dialog box is displayed after all transfers (default).
0 A dialog box is not displayed after transfers.
NOTE. You do not have to be logged in with System Administrator rights to
change the DefaultAlwaysDialogBox parameter.
Use the following path to access the DefaultAlwaysDialogBox registry
parameter.
CAUTION. To prevent file corruption, verify that the Data Store Administrator is
not running before editing the DefaultAlwaysDialogBox parameter. When the
Data Store Administrator quits, it writes to the registry file and may overwrite
the value of the DefaultAlwaysDialogBox you have set.
To change the value of the DefaultAlwaysDialogBox registry parameter, use the
REGEDT32.EXE program. The REGEDT32 program is located in the
C:\WINNT35\SYSTEM32 or C:\WINNT\SYSTEM32 directory.
Values for DefaultAlwaysDialogBox registry parameter
C:\HKEY_CURRENT_USER\SOFTWARE\CARB\CARB0
MPEG Test System Prosignia Platform
2–17
Operating Information
2–18
MPEG Test System Prosignia Platform
Theory of Operation
Theory of Operation
An MPEG Test System consists of a Personal Computer platform to which a
Data Store system and/or a Real-Time Analysis (RTA) system are added. The
computer portion of the system is referred to as the server. The Data Store and
RTA circuit boards are installed in the server EISA card cage. The boards
communicate with the server via the EISA bus. See Figure 3–1 for a block
diagram of the MPEG Test System. The application software that runs on the
Windows NT operating system is resident on the server system disk (the C:\
drive).
The Data Store circuit board, the four SCSI Controller daughter circuit boards,
and the four hard disk drives make up the Data Store system. The system can
acquire and generate transport streams of up to the size of the total Data Store
disk drive capacity without looping. Data store capacity of standard
Prosignia-based test systems and is 8 Gbytes; capacity after installation of the
MTS1F03 or MTS1F05 upgrade kits is 18 Gbytes.
The RTA circuit board decodes and instantaneously analyses many input stream
characteristics. The Real-Time Analyzer software displays the results of these
analyses in a graphical format.
The mouse and keyboard provide user control of the system. The mouse allows
you to use standard Windows point and click techniques. The graphical user
interface (GUI) displays Windows NT compliant icons, menus, and drop-down
lists on an SVGA monitor.
MPEG Test System Prosignia Platform
3–1
Theory of Operation
Real-Time Analyzer
Server
Floppy disk,
drive A
System disk,
drive C
CD-ROM,
drive D
Real-Time
Analyzer
circuit board
EISA bus
Server
ASI input
ASI output
LVDS/mod ECL input
LDVS/mod ECL output
Trigger input
Optional
external connection
for data capture
Keyboard
and mouse
interface
SVGA
monitor
interface
Data Store
Data store -
disk 1
Data store -
disk 2
Data store -
disk 3
Data store -
disk 4
SCSI bus
SCSI bus
SCSI bus
SCSI bus
SCSI
controller 1
SCSI
controller 2
SCSI
controller 3
SCSI
controller 4
Figure 3–1: T est System block diagram
EISA bus
Data store
circuit board
TTL data (50W)
TTL clock (50W)
ECL parallel and serial
ECL control
G.703 (8.448 Mbits/s)
G.703 (34.368 Mbits/s)
G.703 Input
10 MHz serial
Clock input
3–2
MPEG Test System Prosignia Platform
Data Store
Theory of Operation
The Data Store circuitry controls the acquisition, storage, and output of the data
that makes up the MPEG transport stream. It outputs test signals that can be used
to evaluate downstream circuits. The Data Store system consists of the Data
Store circuit board, four SCSI Controller boards, and four Data Store disk drives.
Data Store Circuit Board
SCSI Controllers
Data Store Disk Drives
The Data Store circuit board controls the acquisition, storage, and output of
transport stream data. The board contains a 16 MHz central processing unit
(CPU) and an 8-bit common bus with a 16 Mbyte/s transfer rate. Communication
between the server and the Data Store circuit board occurs over the EISA bus.
Data transfers from the server to the Data Store Disks use a 32-bit direct memory
access (DMA) with a read/write enable to the Data Store CPU.
The Data Store circuit board generates several clocks for synchronization. A
phase lock loop synthesizer locks to either internal or external clocks to produce
clock signals ranging from 1 MHz to 60 MHz. Two crystal oscillators provide
internal clocks at the 8.448 MHz and 34.368 MHz G.703 bit rates.
There are four SCSI Controller boards mounted on the Data Store circuit board.
The SCSI Controller boards provide the interface between the Data Control
board and the Data Store Disks. Each SCSI Controller board has 512 Kbytes of
random access memory (RAM) buffer to support transfers between the Data
Control board and one of the four Data Store Disks.
The four hard disk drives, numbered 1 through 4, are located in the server drive
bay. The drives share a common power supply from the server mainframe. Each
drive connects directly to a SCSI Controller board through a dedicated SCSI bus
cable.
External I/O
MPEG Test System Prosignia Platform
There are four separate transport stream I/Os in the Data Store System:
H The G.703 serial interface acquires and generates MPEG transport streams
that comply with the ITU-T G.703 standard.
H The 10 Mbit/s serial interface is a differential I/O that incorporates both data
and clock. It operates at RS-422 voltage levels.
H The TTL interface is a bidirectional serial interface that uses a continuous
data transmission clock.
H The ECL parallel/serial port provides a differential, bidirectional interface for
100K ECL transport streams. The separate control port can be used to
control this parallel/serial port to provide additional operating modes.
3–3
Theory of Operation
G.703. The G.703 serial interface consists of a single input to and two outputs
from the Data Store circuit board. The input port accepts ITU-T Recommendation G.703 (HDB code) 8.448 Mbits/s and 34.368 Mbits/s streams and operates
in the unframed mode.
The two G.703 outputs provide 8.448 Mbit/s and 34.368 Mbit/s transport
streams. These output streams use the internal crystal controlled clock for their
timing reference.
10 Mbit Serial Port. The 10 Mbit serial port inputs and outputs both differential
data and a differential clock. The port has separate pins for incoming data and
outgoing data. Input lines are terminated 110 ohm line-to-line. Output lines
should be terminated at the far end. This port can use either the internal clock or
an external clock as its timing reference.
TTL 50 Ohm Serial Port. The TTL 50 ohm serial port consists of a serial data line
and a continuous data transmission clock. Its maximum operating rate is 45
Mbits/s. The port acquires a transport stream using the transmission clock as its
timing reference. The output transport stream can be locked to either the internal
phase-locked loop or an external clock to provide the timing reference. The
enhanced output drives a 50 ohm grounded load.
ECL Parallel and Serial Port. A single connector supports both parallel and serial
differential I/O functions. The operating levels for both parallel and serial
interfaces are 100K ECL. All input lines are terminated 110 ohm line-to-line.
The ports are bidirectional and can use either the internal phase-locked loop or an
external clock as a timing reference.
Serial data rates to 55 MBits/s are possible using the internal PLL. The
maximum parallel data rate is 60 Mbits/s (7.5 MBytes/s).
A separate control port can be used to provide additional slave generation and
master acquisition data transfer modes. When using the control port, hand-shaking signals from the master system control the data transfer. This means the
direction of signal flow from the control port is opposite the data transfer
direction. For example, in the master acquisition operating mode the master
system sends the control signals and receives the data. The slave system receives
the control signals and sends the data.
3–4
MPEG Test System Prosignia Platform
Real-Time Analysis
Theory of Operation
The real-time analysis (RTA) hardware and software can continuously monitor
input bit streams for compliance with MPEG-2 and DVB-SI standards.
Real-Time Analyzer
Circuit Board
External I/O
The Real-Time Analyzer circuit board contains circuitry that decodes incoming
transport stream packets so that analysis can be performed. The board also
contains a DSP to generate rate and allocation data for the PIDs and Programs
carried in the transport stream. Packets that contain PCRs are time-stamped so
that the application can perform PCR jitter, frequency offset, and arrival interval
analyses.
The RTA contains both parallel and ASI (Asynchronous Serial Interface) ports
for data input and output. You can select the input through the RTA Configuration menu. The parallel output is live whenever the RTA is analyzing an input
stream; however, the ASI output is active only when the ASI input is used.
Parallel Input. The parallel port is a 25-pin D-connector; pin assignments
correspond to the DVB SPI interface standard. All input lines are differential and
are terminated with 100 ohms line–to–line. The input is functional with signal
levels of LVDS, ECL, or TTL (RS–422).
ASI Input. The ASI input port is a BNC connector terminated in 75 ohms.
Parallel Output. The parallel output port is intended primarily as a method to
transfer a portion of the input transport stream to the Data Store system for
capture and in-depth, deferred-time analysis. Capture may be initiated manually
or triggered by a selected error in the transport stream. You can configure the
parallel output to either LVDS or modified ECL levels through the RTA
Configuration menu. When capturing to the Data Store system, select modified
ECL output levels.
The input transport stream, or selected portions of the input stream, are passed to
the parallel output whenever analysis is occurring. You can specify, using the
RTA configuration menu, which PIDs or programs are to be passed through to
the output. The RTA uses the DEN line to accomplish this PID-based filtering.
ASI Output. When the ASI Input is selected, the input data is also present in the
ASI output. Parallel input is not passed to the ASI output, and PID-based
filtering does not affect ASI output.
MPEG Test System Prosignia Platform
3–5
Theory of Operation
3–6
MPEG Test System Prosignia Platform
Performance Verification
Performance Verification, Data Store System
This section contains procedures for verifying that the Data Store system, an
integral part of the Tektronix MPEG Test System, meets the performance
requirements listed in the Specifications section.
It is common for MPEG Test System operators to use only one or two of the I/O
ports. To minimize test time, you can verify only the I/O ports that are used by
the system operators. Refer to the Procedure Structure section on page 4–5 for
information about running tests for specific I/O ports.
If the instrument cannot pass these tests, refer to the Maintenance section for
troubleshooting procedures.
NOTE. To perform the procedures in this section, you must have a basic
understanding of the Windows NT operating system and the MPEG Test System
Data Store Administrator application. For detailed operating instructions, refer
to the Windows NT documentation and the appropriate MPEG Test System user
manual.
Verification Interval
Perform the procedure once every 2000 hours of operation or every 12 months to
ensure that the performance is within tolerance.
Incoming Inspection Test
A functional check procedure for the Data Store system appears in Appendix E
of the user manuals listed in Table 4–1. If necessary, perform the functional
check to verify that the instrument is operational.
T able 4–1: Manuals containing the functional check
Software version User manual title
2.0 MTS100 MPEG Test System 070-9376-04
2.1 MTS100 MPEG Test System Software V2.1 070-9376-05
2.2 MTS210 and MTS215 Deferred-Time Applications 071-0078-XX
Tektronix
part number
MPEG Test System Prosignia Platform
4–1
Performance Verification, Data Store System
T able 4–1: Manuals containing the functional check (Cont.)
Software version
2.5 MPEG Test System Deferred-Time Applications 071-0078-XX
3.0 MTS200 Series MPEG Test System Data Store
Prerequisites
The tests in this section comprise an extensive, valid confirmation of performance and functionality when the following performance conditions are met:
H The instrument must be operating within the environmental limits described
in the Table 1–21, in the Specifications section of this manual.
H The instrument must have had a warm-up period of at least 20 minutes.
User manual title
Administrator
Tektronix
part number
071-0536-XX
Equipment Required
Table 4–2 lists the test equipment required for the Performance Verification
procedure. The table identifies examples and minimum tolerances where
applicable. If you substitute other equipment for the examples listed in
Table 4–2, the equipment must meet or exceed the tolerances.
T able 4–2: Required equipment
Test equipment Minimum requirements Example
MPEG Test System (an
additional system, not the
device under test)
MTS100 Service Data
Files disk
T est Oscilloscope Bandwidth DC to 500 MHz Tektronix TDS540A with
50 ohm SMB-to-BNC
Adapter cables (4 required)
75 ohm SMB-to-BNC
Adapter cables (4 required)
50 ohm BNC to BNC
Cable (1 required)
Used to test data transfer Tektronix MTS210 or 215
Contains files required for the test
procedures
Tektronix part number
063-2578-00, supplied
with this manual
10X voltage probes
Tektronix part number
174-3578-00 (shipped as
a standard accessory)
Tektronix part number
174-3579-00 (shipped as
a standard accessory)
Tektronix part number
012-0057-01
4–2
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
T able 4 –2: Required equipment (cont.)
Test equipment ExampleMinimum requirements
50 ohm BNC Adapter
(2 required)
Female-to-female connectors Tektronix part number
103-0028-00
Definitions
50 ohm Feed-through
Terminator (2 required)
75 ohm Feed-through
Terminator
Frequency counter Accuracy and resolution to 8 decimal
places, or used with an external
reference (WWV, Loran C, or GPS)
that will improve the accuracy to 8
decimal places. 1 MHz to 60 MHZ
range.
Pulse Generator 5 MHz, 0–3 V amplitude output Tegam PG502
10 MHz Signal
Interconnect Fixture
Interconnecting Cable for
ECL Data Port
Interconnecting Cable for
ECL Control Port
Male-to-male adapter, 9 pins, use with
Tektronix part number 174-3603-00
25-pins, female-to-female connectors Tektronix part number
9-pins, female-to-female connectors Tektronix part number
Tektronix part number
011-0049-01
Tektronix part number
011-0103-02
Tektronix
CDC250 Counter
A user built test fixture
(see Figure 4–13 on
page 4–34)
174-3562-00
174-3603-00
The following terms are used throughout this section:
CARB (Carte d’Acquisition / Restitution Binaire)
(French for Binary Acquisition/Restitution Board) The MPEG Test System
Data Store system, which can capture, store, and output MPEG-2 compliant
transport streams. The term is used in this section where necessary for
consistency with the Data Store Administrator user interface.
DUT (Device Under Test)
The MPEG Test System that contains the Data Store System that you are
checking for proper operation.
Reference System
The MPEG test system that is used to verify DUT performance. The
reference system, typically an MTS 210 or 215, must contain a Data Store
System.
MPEG Test System Prosignia Platform
4–3
Performance Verification, Data Store System
Test Record
Use this form to record the results of the Data Store system Performance
Verification procedure.
Serial number Procedure performed by Date
Performance verification step Requirement Test result
Internal Clock Test
1 MHz clock 999,990 Hz to 1,000,010 Hz
8.448 MHz clock 8,447,915 Hz to 8,448,085 Hz
24.9 MHz clock 24,899,751 Hz to 24,900,249 Hz
25.1 MHz clock 25,099,749 Hz to 25,100,251 Hz
34.368 MHz clock 34,367,312 Hz to 34,368,688 Hz
45 MHz clock (B020000 and above) 44,999,555 Hz to 45,000,450 Hz
G.703 I/O Port Tests
8 Mbits/s pulse mark voltage +2.13 V to +2.60 V and
8 Mbits/s No-pulse space voltage 0 V ±0.237 V
8 Mbits/s master generation Error-free transfer
34 Mbits/s pulse mark voltage +0.9 V to +1.1 V and
34 Mbits/s No-pulse space voltage 0 V ±0.1 V
34 Mbits/s master generation Error-free transfer
TTL 50 ohm Port Tests
Clock pulse amplitude <0.3 V and
Data I/O amplitude <0.3 V and
High-speed clock slave acquisition and
master generation
Low-speed clock slave acquisition and
master generation
–2.13 V to –2.60 V
–0.9 V to –1.1 V
>2.65 V
>2.65 V
Error-free transfer
Error-free transfer
External clock generation Error-free transfer
10 Mbits/s (RS-422) Port Tests
4–4
MPEG Test System Prosignia Platform
Performance verification step Test resultRequirement
High-speed clock slave acquisition and
master generation
Error-free transfer
Performance Verification, Data Store System
Low-speed clock slave acquisition and
master generation
External clock generation Error-free transfer
ECL Parallel Port Tests
Slave acquisition and master generation Error-free transfer
External clock generation Error-free transfer
Master acquisition and slave generation Error-free transfer
ECL Serial Port Tests
Slave acquisition and master generation Error-free transfer
External clock generation Error-free transfer
Master acquisition and slave generation Error-free transfer
Procedure Structure
Error-free transfer
The Performance Verification procedure is structured so that you can test one
I/O port or the entire instrument. Before performing any tests you must turn the
instrument on, log in, and load the service data files (if they are not already
loaded on your Test System). After 20 minutes, perform the Internal Clock test
that begins on page 4–8. Then refer to Table 4–3 and perform the individual I/O
port tests as desired.
T able 4–3: The I/O port tests
Test name Begins on
G.703 I/O Port Tests page 4–10
TTL 50 ohm Port Tests page 4–22
10 Mbits/s (RS-422) Port Tests page 4–34
ECL Parallel Port Tests page 4–45
ECL Serial Port Tests page 4–56
MPEG Test System Prosignia Platform
4–5
Performance Verification, Data Store System
Power On/Log In Procedure
This is the power on and log in procedure for the Performance Verification
procedure. It is the starting point for all of the other procedures.
1. Connect the MPEG Test System power cord to an appropriate power source.
2. Turn on the power switch located on the front of the Server. Initialization
takes between one and two minutes. It is not necessary to press shift to
invoke the Hardware Profile/Last Known Good menu during normal startup.
Loading Data Files
3. When initialization is complete, press
message box.
4. Log in as administrator and use the password MPEG2. (If you cannot log
in, someone may have changed the password.)
5. Once you have correctly logged in, you can start the individual MPEG Test
System applications through the MPEG Test System program group window
or the corresponding Windows NT Start submenu.
The MTS100 Service Data Files disk is shipped as a standard accessory with this
manual. The disk contains the following files required for the Performance
Verification procedures:
File name Purpose
11meg.ver Data file for test procedures
tr11meg.ver Data file for test procedures
CTRL + ALT + DEL, as instructed by the
4–6
Before performing the tests in this section, install the service data files on drive
C:\ of both the MPEG Test System under test and the MPEG Test System used
for test purposes (referred to as the reference system). One of the service data
files, 11meg.ver, must be transferred to the Data Store disks of both systems. Use
the following procedures to install the files onto drive C and then transfer the
files to the Data Store system.
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
Copying the Data Files
into C:\Temp
Install the MTS100 Service Data Files disk contents onto drive C of both test
systems with the following procedure:
NOTE. You must have 20 MBytes of free system disk space to install the service
data files.
1. Insert the service data files disk into drive A of the MPEG Test System
under test.
2. Select Command Prompt from the Programs submenu (of the Window NT
Start menu).
3. In the resulting Command Prompt window, enter cd\temp to change to the
TEMP directory.
4. Type a:\service and then press
data files disk copies and expands the compressed service data files into the
TEMP directory.
5. Eject the disk from drive A.
6. Place the disk into drive A of the reference system and repeat steps 2
through 5.
ENTER. The install program on the service
Transferring Files to the
Data Store Disks
Use the following procedure to transfer the files to the Data Store disks on both
test systems:
1. Start the MPEG Test System Data Store Administrator application.
2. Select PC to Board (Write) from the Data Store Administrator File menu.
The File Write to CARB window appears.
3. Click Browse and then select C:\temp\11meg.ver from the resulting Open
window.
4. Once you select the file (by clicking OK or double-clicking the file name),
the File Write to CARB window returns to the screen. Verify that the
11meg.ver file name appears in the Name of the CARB file field.
5. Click Start to copy the file onto the Data Store disks.
MPEG Test System Prosignia Platform
4–7
Performance Verification, Data Store System
Internal Clock Test
This section tests the internal clock frequency accuracy at frequencies that verify
the performance of the phase-locked loop (PLL), the 8.448 MHz clock, and the
34.368 MHz clock.
1. Connect the equipment as shown in Figure 4–1.
DUT (rear panel)
Frequency
TTL 50 W Clock
I/O port
Input
50 W SMB-to-BNC adapter cable
counter
50 W feed-through
terminator
Figure 4–1: Setup for measuring internal clock output accuracy
2. Start the Data Store Administrator application, if necessary.
3. Select (highlight) 11meg.ver in the File information list, then click the G
command button to display the GENERATION dialog box.
4–8
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
4. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file The highlighted file
Protocol Master
Port TTL
Output Clock PLL
Frequency 1,000,000 Hz
Loop Selected
5. Click Start and wait five seconds.
6. Trigger the frequency counter for a stable display.
7. Verify that the frequency display is within the limits shown in Table 4–4.
T able 4–4: Internal clock accuracy limits
Clock rate Minimum frequency Maximum frequency
1 MHz 999,990 Hz 1,000,010 Hz
8.448 MHz 8,447,915 Hz 8,448,085 Hz
24.9 MHz clock 24,899,751 Hz 24,900,249 Hz
25.1 MHz clock 25,099,749 Hz 25,100,251 Hz
34.368 MHz 34,367,312 Hz 34,368,688 Hz
45 MHz clock 44,999,550 Hz 45,000,450 Hz
8. Click the hand (stop) command button and then the G (Generator) button so
you can enter a new clock rate.
9. Repeat steps 3 through 8 for each clock rate shown in Table 4–4. Verify that
the frequency display is within the limits shown for each clock rate.
MPEG Test System Prosignia Platform
4–9
Performance Verification, Data Store System
G.703 I/O Port Tests
This section contains 8 Mbits/s and 34 Mbits/s G.703 I/O port tests for pulse
mark amplitude and no pulse space voltage, slave acquisition, and master
generation.
NOTE. The data order (LSB or MSB first) for the serial ports must match for
both MTS100 MPEG Test Systems used during the Performance Verification
procedure. If the data store screen on either of your systems allows you to
change the data order, set the data order to the same setting for both systems.
Systems with serial numbers between B010100 and B019999 that have not been
upgraded to at least software version 2.1 always use the LSB first data order. If
one system has a serial number within that range, be sure the other system is
also set for LSB first.
8 Mbits/s Pulse Mark
Amplitude and
No-Pulse Space Voltage
This procedure verifies the following parameters:
H Pulse mark amplitude (+2.13 V to +2.60 V and –2.13 V to –2.60 V)
H No-pulse space voltage (0 V $0.237 V)
1. Connect the equipment as shown in Figure 4–2 on page 4–11.
2. Select (highlight) 11meg.ver in the File information list, then click the G
command button to display the GENERATION dialog box.
3. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
File name Any file in the list
Protocol Master
Port G703
Output Clock 8.448 MHz
Loop Selected
4–10
MPEG Test System Prosignia Platform
MTS100 (rear panel)
Performance Verification, Data Store System
Pulse mark
amplitude
Pulse mark
amplitude
No pulse
space
amplitude
G.703
8M
Output
Ch 1 input
75 W SMB-to-BNC adapter cable
Test oscilloscope
75 W feed-through
terminator
Figure 4–2: Setup for measuring 8 Mbits/s signal parameters
4. If necessary, start the MPEG Test System Data Store Administrator
application.
5. Click Start and wait 5 seconds.
6. Trigger the oscilloscope to obtain a stable display.
7. Verify the pulse mark amplitude is within +2.13 V to +2.60 V (positive
pulse) and –2.13 V to –2.60 V (negative pulse), and the no-pulse space
voltage is 0 V $0.237 V.
MPEG Test System Prosignia Platform
4–11
Performance Verification, Data Store System
G.703 - 8 Mbits/s Slave
Acquisition and Master
Generation
This test requires a second MPEG Test System that is designated as the reference
system In this procedure, the MPEG Test System that you are testing is referred
to as the DUT (Device Under Test).
The requirement is error-free file transfer between the reference system and the
DUT.
1. Connect the equipment as shown in Figure 4–3.
MPEG Test System DUT
(rear panel)
G.703 Input G.703 8M Output
BNC female-to-female adapter
Reference system
(rear panel)
75 W SMB-to-BNC cables
Figure 4–3: Setup for testing G.703 8.448 Mbits/s slave acquisition
2. On the DUT, click the Data Store Administrator red hand (stop) command
button.
3. Click the A (acquisition) command button to display the ACQUISITION
dialog box.
4. Enter the following parameters in the ACQUISITION dialog box:
Parameter Setting
Board file Any (8mbit1.tst, for example)
Protocol Slave
File Size 10,000,000
Port G703
Internal Clock 8.448 MHz
4–12
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
Parameter Setting
Synchronization Pattern
MSB first Match the reference system
NOTE. The data order (LSB or MSB first) for the serial ports must match for
both the MPEG Test System under test and the system used for verification.
Select the MSB first option for acquisition only if you also select the option for
generation on the reference system.
5. Click Start to begin the DUT acquisition.
6. At the reference system, start or switch to the Data Store Administrator
application, if necessary.
7. Select (highlight) 11meg.ver in the File information list, then click the G
command button to display the GENERATION dialog box.
8. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file 11meg.ver
Protocol Master
Port G703
Output Clock 8.448 MHz
Loop Not selected
9. Click Start to begin reference system generation and wait for the transfer to
complete.
10. Save the acquired test file to the DUT C drive as follows:
a. On the DUT, highlight any file name on the File information list and
then click the R (CARB file read to PC) command button to open the
File Read from CARB window.
b. From the Name of the CARB file drop-down selection box, select the
file name that you entered in step 4 (such as 8mbit1.tst).
c. Enter the following in the Name of the PC file text box:
d. Click Start to save the file to the hard disk.
MPEG Test System Prosignia Platform
C:\temp\<filename>
where <filename> is the name you entered in step b (such as 8mbit1.tst).
4–13
Performance Verification, Data Store System
11. On the DUT, use the Windows NT command prompt to perform a file
comparison as follows:
a. Start or switch to the Windows NT Command Prompt application: click
Start | Programs | Command Prompt (see Figure 4–4).
b. Enter the following command at the command prompt:
fc/b C:\temp\tr11meg.ver C:\temp\<file name>
where <filename> is the name you entered in step 4 (such as 8mbit1.tst).
c. Press
ENTER to begin the file comparison.
12. Check the command prompt window for the comparison results
(Figure 4–4). If no differences are encountered, error-free file transfer is
verified.
Figure 4–4: Example file comparison results
13. Reconnect the equipment as shown in Figure 4–5.
4–14
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
MPEG Test System DUT
(rear panel)
G.703 8M Output G.703 Input
BNC female-to-female adapter
75 W SMB-to-BNC cables
Reference system
(rear panel)
Figure 4–5: Setup for testing G.703 8.448 Mbits/s master generation
14. In the reference system Data Store Administrator window, click the A
command button to display the ACQUISITION dialog box.
15. Enter the following parameters in the ACQUISITION dialog box:
Parameter Setting
Board file Any (8mbit2.tst, for example)
Protocol Slave
File Size 10,000,000
Port G703
Internal Clock 8.448 MHz
Synchronization Pattern
16. Click Start to begin the reference system acquisition.
17. On the DUT, switch to the Data Store Administrator window, select
11meg.ver from the File information list, and then click the G command
button to display the GENERATION dialog box.
MPEG Test System Prosignia Platform
4–15
Performance Verification, Data Store System
18. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file 11meg.ver
Protocol Master
Port G703
Output Clock 8.448 MHz
Loop Not selected
19. Click Start to begin DUT generation; wait for the transfer to complete.
20. Save the acquired test file to the reference system C drive as follows:
a. On the reference system, select the file you just acquired in the File
information list and then click the R (CARB file read to PC) command
button.
b. From the Name of the CARB file drop-down selection box, select
<filename>, where <filename> is the name you entered in step 15 (such
as 8mbit2.tst).
c. Enter the following in the Name of the PC file text box:
C:\temp\<filename>
where <filename> is the name you entered in step 20b (such as
8mbit2.tst).
d. Click Start to save the file to the hard disk.
21. On the reference system, use the Windows NT Command Prompt to perform
a file compare as follows:
a. Start or switch to the Windows NT Command Prompt application.
b. In the Command Prompt window, enter the following command:
fc/b C:\temp\tr11meg.ver C:\temp\<file name>
where <filename> is the name you entered in step 15 (such as
8mbit2.tst).
c. Press
ENTER to begin the file comparison.
4–16
22. Check the Command Prompt window for the comparison results (see
Figure 4–4 on page 4–14). If no differences are encountered, error-free file
transfer is verified.
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
34 Mbits/s Pulse Mark
Amplitude and No Pulse
Space Voltage
This procedure verifies the following parameters:
H Pulse mark amplitude (+1 V $0.1 V)
H No-pulse space voltage (0 V $0.1 V)
1. Connect the equipment as shown in Figure 4–6.
2. Select (highlight) a file name in the File information list and then click the
G command button in the Data Store Administrator window to display the
GENERATION dialog box.
MPEG T est System (rear panel)
Pulse mark
amplitude
Pulse mark
amplitude
No pulse
space
amplitude
G.703 34M
Output
Ch 1 input
75 W SMB-to-BNC adapter cable
Test oscilloscope
75 W feed-through
terminator
Figure 4–6: Setup for measuring 34 Mbits/s signal parameters
3. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file Any file in the list
Protocol Master
Port G703
Output Clock 34.368 MHz
Loop Selected
MPEG Test System Prosignia Platform
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Performance Verification, Data Store System
4. Click Start and wait 5 seconds.
5. Trigger the oscilloscope to obtain a stable display as shown in Figure 4–6.
6. Verify that the pulse mark amplitude is +1 V $0.1 V and the no-pulse space
voltage is 0 V $0.1 V.
G.703 34 Mbits/s Slave
Acquisition and Master
Generation
This test requires a second MPEG Test System that is referred to as the reference
system. Throughout this procedure, the MPEG Test System that you are testing
is referred to as the DUT (Device Under Test).
The requirement is error-free file transfer between the reference system and the
DUT.
1. Connect the equipment as shown in Figure 4–7.
MPEG Test System DUT
(rear panel)
G.703 Input G.703 34M Output
BNC female-to-female adapter
Reference system
(rear panel)
4–18
75 W SMB-to-BNC cables
Figure 4–7: Setup for testing G.703 34.368 Mbits/s slave acquisition
2. In the DUT Data Store Administrator window, click the hand (stop)
command button and the A command button to display the ACQUISITION
dialog box.
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
3. Enter the following parameters in the ACQUISITION dialog box:
Parameter Setting
Board file Any (34mbit1.tst, for example)
Protocol Slave
File Size 10,000,000
Port G703
Internal Clock 34.368 MHz
Synchronization Pattern
4. Click Start to begin the DUT acquisition.
5. At the reference test system, start or switch to the Data Store Administrator
application, if necessary.
6. In the reference test system Data Store Administrator window, select
11meg.ver in the File information list and then click the G command button
to display the GENERATION dialog box.
7. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file 11meg.ver
Protocol Master
Port G703
Output Clock 34.368 MHz
Loop Not selected
8. Click Start to begin the reference system generation and wait for the transfer
to complete.
9. Save the acquired test file to the DUT C drive as follows:
a. On the DUT, select the file you just acquired in the File information list
and then click the R (CARB file read to PC) command button.
b. From the Name of the CARB file drop-down selection box, select
<filename>, where <filename> is the name you entered in step 3 (such as
34mbit1.tst).
MPEG Test System Prosignia Platform
4–19
Performance Verification, Data Store System
c. Enter the following in the Name of the PC file text box:
C:\temp\<filename>
where <filename> is the name you entered in step 9b (such as
34mbit1.tst).
d. Click Start to save the file to the hard disk.
10. On the DUT, use the Windows NT Command Prompt to perform a file
comparison as follows:
a. Start or switch to the Windows NT Command Prompt application.
b. In the Command Prompt window, enter the following command:
fc/b C:\temp\tr11meg.ver C:\temp\<file name>
where <filename> is the name you entered in step 4 (such as
34mbit1.tst).
c. Press
ENTER to begin the file comparison.
11. Check the Command Prompt window for the comparison results (see
Figure 4–4 on page 4–14). If no differences are encountered, error-free file
transfer is verified.
12. Reconnect the equipment as shown in Figure 4–8.
MPEG Test System DUT
(rear panel)
G.703 34M Output G.703 Input
BNC female-to-female adapter
Reference system
(rear panel)
4–20
75 W SMB-to-BNC cables
Figure 4–8: Setup for testing G.703 34.368 Mbits/s master generation
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
13. In the reference system Data Store Administrator window, click the A
command button to display the ACQUISITION dialog box.
14. Enter the following parameters in the ACQUISITION dialog box:
Parameter Setting
Board file Any (34mbit2.tst, for example)
Protocol Slave
File Size 10,000,000
Port G703
Internal Clock 34.368 MHz
Synchronization Pattern
15. Click Start to begin the reference system acquisition.
16. On the DUT, switch to the Data Store Administrator application.
17. In the DUT Data Store Administrator window, select 11meg.ver in the File
information list and then click the G command button to display the
GENERATION dialog box.
18. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file 11meg.ver
Protocol Master
Port G703
Output Clock 34.368 MHz
Loop Not selected
19. Click Start to begin DUT generation and wait for the transfer to complete.
20. Save the acquired test file to the reference system C drive as follows:
a. On the reference system, select the file you just acquired in the File
information list and then click the R (CARB file read to PC) command
button.
b. From the Name of the CARB file drop-down selection box, select
MPEG Test System Prosignia Platform
<filename>, where <filename> is the name you entered in step 14 (such
as 34mbit2.tst).
4–21
Performance Verification, Data Store System
c. Enter the following in the Name of the PC file text box:
C:\temp\<filename>
where <filename> is the name you entered in step b (such as
34mbit2.tst).
d. Click Start to save the file to the hard disk.
21. On the reference system, use the Windows NT Command Prompt to perform
a file compare as follows:
a. Switch to the Command Prompt application.
b. In the Command Prompt window, enter the following command:
fc/b C:\temp\tr11meg.ver C:\temp\<file name>
where <filename> is the name you entered in step 14 (such as
34mbit2.tst).
TTL 50 Ohm Port Tests
TTL 50 Ohm Serial Port
Clock Pulse Amplitude
c. Press
22. Check the Command Prompt window for the comparison results. If no
differences are encountered, error-free file transfer is verified.
This section contains 50 ohm TTL I/O tests for clock pulse amplitude, high
speed clock slave acquisition and master generation, low speed clock slave
acquisition and master generation, and generation using an external clock.
NOTE. The data order (LSB or MSB first) for the serial ports must match for
both MPEG Test Systems used during the Performance Verification procedure.
Be sure to set the data order to the same setting for both systems. Reference
systems with serial numbers between B010100 and B019999 that have not been
upgraded to SW V2.1 always use the LSB first data order.
This procedure checks the following clock signal parameters:
H TTL low is <0.3 V
ENTER to begin the file comparison.
4–22
H TTL high is >2.65 V
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
1. Connect the equipment as shown in Figure 4–9.
MPEG Test System (rear panel)
Amplitude
Clock I/O TTL
50 W serial port
Ch 1 input
50 W SMB-to-BNC adapter cable
Test oscilloscope
50 W feed-through
terminator
Figure 4–9: Setup for measuring TTL 50 ohm clock pulse amplitude
2. Start the Data Store Administrator application, if necessary, by choosing
Data Store Administrator from the Tektronix MPEG Test System program
group.
3. In the Data Store Administrator window, select any file name in the File
information list and then click the G command button.
4. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file Any file in the list
Protocol Master
Port TTL
Output Clock PLL
Frequency 1,000,000 Hz
Loop Selected
MPEG Test System Prosignia Platform
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Performance Verification, Data Store System
5. Click Start and wait 5 seconds.
6. Trigger the oscilloscope to obtain a stable display as shown in Figure 4–9.
7. Verify the positive peak is >2.65 V and the negative peak is <0.3 V.
8. Click the Stop command button (the red hand on the toolbar).
TTL 50 Ohm Serial Port
High Speed Clock
Slave Acquisition and
Master Generation
This test requires a second MPEG Test System that is designated as the reference
system. Within this procedure the MPEG Test System you are testing is
designated the Device Under Test (DUT).
The requirement is error-free file transfer between two MPEG Test Systems.
1. Connect the equipment as shown in Figure 4–10.
MPEG Test System DUT
(rear panel)
TTL 50 W
Data I/O
TTL 50 W
Clock I/O
BNC
female-to-female
adapter
BNC
female-to-female
adapter
50 W
SMB-to-BNC
cables
TTL 50 W
Data I/O
TTL 50 W
Clock I/O
Reference system
(rear panel)
4–24
50 W
SMB-to-BNC
cables
Figure 4–10: TTL 50 ohm slave acquisition and master generation setup
2. Click the A command button in the DUT Data Store Administrator window
to display the ACQUISITION dialog box.
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
3. Enter the following parameters in the ACQUISITION dialog box:
Parameter Setting
Board file Any (TTL1.tst, for example)
Protocol Slave
File Size 10,000,000
Port TTL
Synchronization Pattern
4. Click Start to begin DUT acquisition.
5. On the reference system, start or switch to the Data Store Administrator
application, if necessary.
6. Select 11meg.ver on the File information list and then click the G command
button in the Data Store Administrator window to display the GENERA-
TION dialog box.
7. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file 11meg.ver
Protocol Master
Port TTL
Output Clock PLL
Frequency 45 MBit/s
Loop Not selected
8. Click Start to begin reference system generation.
9. When the transfer is complete, save the acquired test file to the DUT C drive
as follows:
a. On the DUT, select the file you just acquired in the File information list
and then click the R (CARB file read to PC) command button.
b. From the Name of the CARB file drop-down selection box, select
<filename>, where <filename> is the name you entered in step 3 (such as
TTL1.tst).
MPEG Test System Prosignia Platform
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Performance Verification, Data Store System
c. Enter the following in the Name of the PC file text box:
C:\temp\<filename>
where <filename> is the name you entered in step 9b (such as TTL1.tst).
d. Click Start to save the file to the hard disk.
10. On the DUT, use the Windows NT Command Prompt to perform a file
comparison as follows:
a. Start or switch to the Command Prompt application.
b. In the Command Prompt window, enter the following command:
fc/b C:\temp\tr11meg.ver C:\temp\<file name>
where <filename> is the name you entered in step 4 (such as TTL1.tst).
c. Press
ENTER to begin the file comparison.
11. Check the Command Prompt window for the comparison results. If no
differences are encountered, error-free file transfer is verified.
12. In the reference system Data Store Administrator window, click the A
command button to display the ACQUISITION dialog box.
13. Enter the following parameters in the ACQUISITION dialog box:
Parameter Setting
Board file Any (TTL2.tst, for example)
Protocol Slave
File Size 10,000,000
Port TTL
Synchronization Pattern
14. Click Start to begin reference system acquisition.
15. On the DUT, switch to the Data Store Administrator application.
16. Select 11meg.ver on the File information list and then click the G command
button in the DUT Data Store Administrator window to display the
GENERATION dialog box.
4–26
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
17. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file 11meg.ver
Protocol Master
Port TTL
Output Clock PLL
Frequency 45 MBit/s
Loop Not selected
18. Click Start to begin DUT generation; wait for the transfer to complete.
19. Save the acquired test file to the reference system C drive as follows:
a. On the reference system, select the file you just acquired in the File
information list and then click the R (CARB file read to PC) command
button.
b. From the Name of the CARB file drop-down selection box, select
<filename>, where <filename> is the name you entered in step 13 (such
as TTL2.tst).
c. Enter the following in the Name of the PC file text box:
C:\temp\<filename>
where <filename> is the name you entered in step b (such as TTL2.tst).
d. Click Start to save the file to the hard disk.
20. On the reference system, use the Windows NT Command Prompt to perform
a file comparison as follows:
a. Start or switch to the Command Prompt application.
b. In the Command Prompt window, enter the following command:
fc/b C:\temp\tr11meg.ver C:\temp\<file name>
where <filename> is the name you entered in step 13 (such as TTL2.tst).
c. Press
ENTER to begin the file comparison.
21. Check the Command Prompt window for the comparison results. If no
differences are encountered, error-free file transfer is verified.
MPEG Test System Prosignia Platform
4–27
Performance Verification, Data Store System
TTL 50 Ohm Serial Port
Low Speed Clock
Slave Acquisition and
Master Generation
This test requires a second MPEG Test System that is designated as the
“reference system. Within this procedure the MPEG Test System you are testing
is designated the Device Under Test (DUT).
The requirement is error-free file transfer between two MPEG Test Systems.
1. Connect the equipment as shown in Figure 4–10 (on page 4–24).
2. In the DUT Data Store Administrator window, click the A command button
to display the ACQUISITION dialog box.
3. Enter the following parameters in the ACQUISITION dialog box:
Parameter Setting
Board file Any (TTL3.tst, for example)
Protocol Slave
File Size 10,000,000
Port TTL
Synchronization Pattern
4. Click Start to begin the DUT acquisition.
5. On the reference system, switch to the Data Store Administrator application.
6. In the reference system Data Store Administrator window, select 11meg.ver
on the File information list and then click the G command button to display
the GENERATION dialog box.
7. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file 11meg.ver
Protocol Master
Port TTL
Output Clock PLL
Frequency 1 MBit/s
Loop Not selected
8. Click Start to begin reference system generation.
4–28
MPEG Test System Prosignia Platform
Performance Verification, Data Store System
9. When the file transfer is complete, save the acquired test file to the DUT C
drive as follows:
a. On the DUT, select the file you just acquired in the File information list
and then click the R (CARB file read to PC) command button.
b. From the Name of the CARB file drop-down selection box, select
<filename>, where <filename> is the name you entered in step 3 (such as
TTL3.tst).
c. Enter the following in the Name of the PC file text box:
C:\temp\<filename>
where <filename> is the name you entered in step 9b (such as TTL3.tst).
d. Click Start to save the file to the hard disk.
10. On the DUT, use the Windows NT Command Prompt to perform a file
comparison as follows:
a. Switch to the Command Prompt application.
b. In the Command Prompt window, enter the following command:
fc/b C:\temp\tr11meg.ver C:\temp\<file name>
where <filename> is the name you entered in step 3 (such as TTL3.tst).
c. Press
ENTER to begin the file comparison.
11. Check the Command Prompt window for the comparison results. If no
differences are encountered, error-free file transfer is verified.
12. In the reference system Data Store Administrator window, click the A
command button to display the ACQUISITION dialog box.
13. Enter the following parameters in the ACQUISITION dialog box:
Parameter Setting
Board file Any (TTL4.tst, for example)
Protocol Slave
File Size 10,000,000
Port TTL
Synchronization Pattern
14. Click Start to begin reference system acquisition.
15. On the DUT, switch to the Data Store Administrator application.
MPEG Test System Prosignia Platform
4–29
Performance Verification, Data Store System
16. In the DUT Data Store Administrator window, select 11meg.ver on the File
information list and then click the G command button to display the
GENERATION dialog box.
17. Enter the following parameters in the GENERATION dialog box:
Parameter Setting
Board file 11meg.ver
Protocol Master
Port TTL
Output Clock PLL
Frequency 1 MBit/s
Loop Not selected
18. Click Start to begin the DUT generation and wait for the transfer to
complete.
19. Save the acquired test file to the reference system C drive as follows:
a. On the reference system, select the file you just acquired in the File
information list and then click the R (Board to PC) command button.
b. From the Name of the CARB file drop-down selection box, select
<filename>, where <filename> is the name you entered in step 13 (such
as TTL4.tst).
c. Enter the following in the Name of the PC file text box:
C:\temp\<filename>
where <filename> is the name you entered in step 19b (such as
TTL4.tst).
d. Click Start to save the file to the hard disk.
20. On the reference system, use the Windows NT Command Prompt to perform
a file comparison as follows:
a. Switch to the Command Prompt application.
b. In the Command Prompt window, enter the following command:
fc/b C:\temp\tr11meg.ver C:\temp\<file name>
4–30
where <filename> is the name you entered in step 13 (such as TTL4.tst).
c. Press
ENTER to begin the file comparison.
MPEG Test System Prosignia Platform
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