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.
Copyright Tektronix, 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.
HASP is a registered trademark of Aladdin Knowledge System Ltd.
Matra is a trademark of Matra Communication
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
WARRANTY
T ektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year
from the date of shipment. If any such product proves defective during this warranty period, 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.
T ektronix 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; or c) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time or
difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE 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.
Service Assurance
If you have not already purchased Service Assurance for this product, you may do so at any time during the product’s
warranty period. Service Assurance provides Repair Protection and Calibration Services to meet your needs.
Repair Protection extends priority repair services beyond the product’s warranty period; you may purchase up to three
years of Repair Protection.
Calibration Services provide annual calibration of your product, standards compliance and required audit documentation,
recall assurance, and reminder notification of scheduled calibration. Coverage begins upon registration; you may purchase
up to five years of Calibration Services.
Service Assurance Advantages
Priced well below the cost of a single repair or calibration
Avoid delays for service by eliminating the need for separate purchase authorizations from your company
Eliminates unexpected service expenses
For Information and Ordering
For more information or to order Service Assurance, contact your T ektronix representative and provide the information
below . Service Assurance may not be available in locations outside the United States of America.
NameVISA or Master Card number and expiration
Companydate or purchase order number
AddressRepair Protection (1, 2, or 3 years)
City , State, Postal codeCalibration Services (1, 2, 3, 4, or 5 years)
CountryInstrument model and serial number
PhoneInstrument purchase date
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
MTS100 MPEG Test System Service Manual
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
MTS100 MPEG Test System Service Manual
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.
MTS100 MPEG Test System Service Manual
xi
Service Safety Summary
xii
MTS100 MPEG Test System Service Manual
Preface
This manual contains the servicing information for MTS100 MPEG Test
Systems based on the Compaq ProLinea 2500 server platform, serial number
B040000 and above. The instrument is a personal computer (hereafter called the
server) equipped with application-specific hardware and software.
The following sections of this manual explain how to verify, service, troubleshoot, and repair the test system to the module level:
Specifications describes functional characteristics and performance requirements
for the MTS100 MPEG Test System.
Operating Information tells you how to install and operate the instrument.
Theory of Operation provides descriptions of the test system modules.
Performance Verification describes how to verify the functional performance of
the test system.
Adjustment Procedures describes how to adjust the oscillator frequency.
Maintenance contains the following information:
How to safely handle static-sensitive modules and components
How to remove and replace modules
Diagnostic and Troubleshooting information and procedures
Options.
Replaceable Parts gives all module and mechanical parts that comprise the test
system. Parts are identified on an indexed illustration to make them easier to
identify.
Appendices consist of the following items:
Software Repair to help you replace damaged software.
MTS100 Test System Application Software lists the directories and files that
make up the applications.
MTS100 MPEG Test System Service Manual
xiii
Preface
Related Manuals
Manual Conventions
The MTS100 MPEG Test System documentation consists of the following:
MTS100 MPEG Test System User Manual details how to operate the test system.
MTS100 MPEG Test System Read this First provides additional information that
will help a user understand the test system.
The following terms and conventions are used throughout this manual:
The term test system is used interchangeably with the more formal term
MTS100 MPEG Test System.
The term server refers to the personal computer (PC) that hosts the MTS100
MPEG Test System.
Signal names that have overbars
represent active low signals.
xiv
MTS100 MPEG Test System Service Manual
Introduction
Before You Begin
This manual contains maintenance information for the MTS100 MPEG Test
System. Take a few minutes to read this short introduction before doing any
repair or service work on the instrument.
This manual is for servicing the MTS100 MPEG Test System. To prevent injury
to yourself or damage to the test system, fulfill the following requirements
before you attempt service:
Be sure you are a qualified service person.
Read the Safety Summary found at the beginning of this manual.
Read Service Strategy, below.
When using this manual to service your test system, be sure to heed all warning,
cautions, and notes.
Service Strategy
This manual contains the following MTS100 MPEG Test System maintenance
and repair procedures:
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.
Tektronix Service Offerings
Tektronix provides service to cover repair under warranty. Other services are
available that may provide a cost-effective answer to your service needs.
Whether providing warranty repair service or any of the other services listed
below, Tektronix service technicians, trained on Tektronix products, are best
equipped to service your MTS100 MPEG Test System. Tektronix technicians are
MTS100 MPEG Test System Service Manual
xv
Introduction
informed of the latest improvements to the product as well as the latest product
options.
Warranty Repair Service
Repair Service
Self Service
Tektronix warrants this product for one year from the date of purchase. (The
warranty appears after the title and copyright pages of this manual.) Tektronix
technicians provide warranty service at most Tektronix service locations
worldwide. Your Tektronix product catalog lists all service locations; if
necessary, contact your nearest Tektronix representative for more information or
assistance.
Tektronix offers single per-incident and annual maintenance agreements that
provide Depot Service repair of this test system.
Of these services, the annual maintenance agreement offers a particularly
cost-effective approach to service for many owners of the MTS100 MPEG Test
System. Such agreements can be purchased to span several years.
Tektronix supports repair to the module level by offering a Module Exchange
program. The Module Exchange service can reduce down time for repair by
allowing you to exchange most modules for remanufactured ones. Tektronix
ships you an updated and tested exchange module from the Beaverton, Oregon
service center. Each module comes with a 90-day service warranty.
For More Information
Please contact your local Tektronix service center or sales engineer for more
information on any of the repair or adjustment services previously described.
xvi
MTS100 MPEG Test System Service Manual
Specifications
Specifications
Product Description
This section lists the electrical, physical, and environmental characteristics of the
MTS100 MPEG Test System.
MTS100 MPEG Test System is installed a computer platform (called the server)
that uses Microsoftr Windows NT
made up of a server, monitor, keyboard, nmouse, and a software enabler key, or
HASPr, along with the MTS100 MPEG Test System Application software. See
Figure 1–1.
Monitor
TM
as its operating system. The Test System is
Server
HASP
Figure 1–1: Components of the MTS100 MPEG Test System
MTS100 MPEG Test System Service Manual
Keyboard
Mouse
1–1
Specifications
Specification Tables
The MTS100 MPEG Test System has the following features:
HThe Test System generates, acquires, and analyzes MPEG2 transport streams
containing MPEG1 or MPEG2 elementary streams.
HThe key system components, installed in the server, are the Data Store circuit
board and four Data Store hard disk drives.
HThe Data Store I/O provides a variety of hardware interconnections,
consisting of TTL serial, G.703 serial, 10 Mbit serial, and ECL parallel and
serial.
HMTS100 MPEG Test System application software consists of six application
programs: Analyzer, Multiplexer, Table Editor, Channel Coder, Data Store
Administrator, and Packet Jitter.
The tables that begin on page 1–3 list the specifications for the MTS100 MPEG
Test System. Refer to the following definitions for an explanation of each
specification table column heading.
Characteristic
Performance Requirement
Supplemental Information
Characteristics are properties of the product.
Performance requirements are statements that define a characteristic, usually in
limit form. These statements 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.
Supplemental information provides explanations for the information in the
performance requirement column, or 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 Performance Requirements are valid within the environmental limits if the
instrument is adjusted at 25_ C ±5_ C, and a minimum warm-up time of
20 minutes is allowed.
1–2
MTS100 MPEG Test System Service Manual
Hardware Electrical Specifications
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Specifications
I/O Ports
The following tables give the specifications for the MTS100-specific I/O ports.
T able 1–1: G.703 — 8.448 MHz
CharacteristicsPerformance requirementsSupplemental information
Standards Conformance
Connector
Line Encoding
Serial Bit Rate
Generation/Acquisition T est
ББББББББББ
Input
Voltage Levels
Á
Á
Á
ББББББББ
ББББББББ
ББББББББ
Return Loss (75 )
Á
Á
Á
ББББББББ
ББББББББ
ББББББББ
Connector
Jitter Tolerance
Á
Á
Á
ББББББББ
ББББББББ
ББББББББ
Output
Pulse Width
Pulse “Mark” Amplitude
No-Pulse “Space” Voltage
Pulse Shape
ÁÁББББББББ
Required Receiver Termination
8.448 Mbytes/s ± 10 ppm
Error free
ББББББББББ
ББББББББББ
ББББББББББ
ББББББББББ
ББББББББББ
ББББББББББ
ББББББББББ
ББББББББББ
ББББББББББ
ББББББББББ
2.37 V ± 0.237 V
0 ± 0.237 V
ББББББББББÁББББББББББ
ITU-CCITT G.703, G.823
SMB
HDB3
Tested with a 10 Mbyte file (within the
constraints of synchronization)
ББББББББББ
Standard level within 0 to 4 dB cable
attenuation at 1/2 clock
ББББББББББ
Standard Levels:
ББББББББББ
Mark from 2.033 V to 2.607 V
ББББББББББ
Space from –0.237 to +0.237 Volts
12 dB – 211 kHz to 422 kHz
ББББББББББ
18 dB – 422 kHz to 8.448 MHz
ББББББББББ
14 dB – 8.448 to 12.672 MHz
ББББББББББ
Male SMB
(shared with the 34.36 Mbit input)
177 ns peak-to-peak 20 Hz to 400 Hz
ББББББББББ
23.6 ns peak-to-peak 3 kHz to 400 kHz
ББББББББББ
ББББББББББ
Log prorated – 400 Hz to 3 kHz
59 ns nominal
Conforms to 8.448 MHz Pulse Mask, G.703
Figure 16 (see Figure 1–2)