Tektronix ECO422D User manual

Instruction Manual

ECO422D

SD/HD Changeover Unit

S/N C050000 and above

077-0354-00

*P077035400*

077035400

Instruction Manual

ECO422D

SD/HD Changeover Unit

S/N C050000 and above

077-0354-00

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

suppliers, and are protected by national copyright laws and int ernational treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes

that in all previously published material. Specifications and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc.

14150 SW Karl Braun Drive

P.O. Box 500

Beave rton, OR 97077

USA

For product information, sales, service, a nd technical support:

H In North America, call 1-800-833-9200.

H Worldwide, visit www.tektronix.com to find contacts in your area.

Warranty 2

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)

year from the date of shipment. If any such produc t proves defective during this warra nty period, Tektronix, at its

option, either will repair the defective product without charge for parts and labor, or will provide a replacement in

exchange for the defective product. Parts, modules and replacement products used by Tektronix for warranty work

may be new or reconditioned to like new performance. All replaced parts, modules and products become the

property of Tektronix.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expi ration

of the warranty period and m ake suitable arrangements for the performanc e of service. Customer shall be

responsible for packaging and shipping the defective product to the service center designated by Tektronix, with

shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a

location within the country in which the Tektronix servi ce center is located. Customer shall be responsible for

paying all shipping charges, duties, t axes, and any other charges for products returned to any other loc ations.

This warranty shall not apply to any defect, failure or damage caused by im proper use or improper or inadequat e

maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage

resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product;

b) to repair damage resulting from improper use or connection to i ncompatible equipment; c) to repair any

dama ge or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been

modified or integrated with other products when the effect of such modification or integration increases the time

or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY

OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY

IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND

EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.

TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,

OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS

ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

ECO422D SD/HD C hangeover Unit Instruction Manual

i

Table of Contents

General Safety Summary v...................................

Service Safety Summary vii....................................

Preface ix...................................................

Operating Basics

Controls and Indicators 1--1............................................

Connect ors 1--5.....................................................

Operating Basics 1--8.................................................

State Machine Description 1--8.........................................

Specifications

Introduction 2--1....................................................

Theory of Operation

Logic Conventions 3--1...............................................

ECO422D Block Level Description 3--2..................................

ECO422D Option ELSW Block Level Description 3--3......................

Performance Verification

Calibration Data Report 4--1...........................................

Equipment Required 4--7..............................................

Performance Verification Procedure 4--8.................................

Adjustment Procedure

Adjusting the User-Defined Threshold Levels 5--1..........................

Maintenance

Service Options 6--1..................................................

Service Preparation 6--1...............................................

Preventive Maintenance 6--1...........................................

Corrective Maintenance 6--4...........................................

Tektronix Service Offerings 6--6........................................

Removal/Replacement Procedures 6--8...................................

Repackaging Instructions 6-- 22..........................................

Replaceable Electrical Parts

Replaceable Electrical Parts 7--1........................................

Table of Contents

ii

ECO422D SD/HD C hangeover Unit Instruction Manual

Replaceable Mechanical Parts

Parts Ordering Information 8--1.........................................

Using the Replaceable Mechanical Parts List 8--1..........................

Column Descriptions 8--2.............................................

Replaceable Mechanical Parts 8--3......................................

Appendices

Option ELSW A--1...................................................

Index

Table of Contents

ECO422D SD/HD C hangeover Unit Instruction Manual

iii

List of Figures

Figure 1--1: Front-panel controls 1--1.............................

Figure 1--2: Default position of the user configuration and

mode switches 1--2.........................................

Figure 1--3: Rear panel of the ECO422D 1--5.......................

Figure 1--4: Remote connector pins 1--6...........................

Figure 1 --5: Wiring required to conform with SMPTE

fault r eporting 1--7.........................................

Figure 1--6: Setup for adjusting R265 (the user level for SX-7) 1--10....

Figure 1--7: Selection switches and user level control locations 1--11....

Figure 2--1: Typical eye-pattern of 20 m of Beld en 1694A cable 2--4....

Figure 2--2: Typical eye-pattern of Channels 1--6 HD output

(Channels 1--3 with Opt. ELSW) 2--4..........................

Figure 3--1: ECO422D Block diagram 3--2.........................

Figure 3--2: ECO422D Option ELSW Block diagram 3--3............

Figure 4--1: Setup to check Black Burst levels 4--9..................

Figure 4--2: Setup to check the component serial digital video levels 4--13

Figure 4--3: Setup to check the serial digital video composite levels 4--15

Figure 4--4: Setup to check the serial audio levels 4--18...............

Figure 4--5: Setup to check the component serial digital video levels 4--20

Table of Contents

iv

ECO422D SD/HD C hangeover Unit Instruction Manual

List of Tables

Table i: Product documentation x.............................

Table 1--1: Factory settings of channel configuration

switches (S1 -- S11) 1--3.....................................

Table 1-- 2: Remote connector pin-out 1-- 6.........................

Table 1--3: Truth table for ECO422D switching 1--9................

Table 2--1: General characteristics 2--2...........................

Table 2--2: Signal loss detection 2--5..............................

Table 2-- 3: Power supply 2-- 6...................................

Table 2--4: Mechanical (physical) characteristics 2--6...............

Table 2--5: Envir onmental characteristics 2--7.....................

Table 6--1: Static-sensitive components 6--3.......................

Table 6--2: Chassis r eplacement tools list 6--8......................

Table 6--3: Tightening specifications for chassis components 6-- 11.....

ECO422D SD/HD C hangeover Unit Instruction Manual

v

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to

this product or any products connected to it.

To avoid potential hazards, use this product only as specified.

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.

Use Proper Power Cord. Use only the power cord specified for this product and

certified for the country of use.

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. B efore making connections to the i nput or output

terminals of the product, ensure that the product is properly grounded.

Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings

and markings on the product. Consult the product manual for further ratings

information before making connections to the product.

Do not apply a potential to any terminal, including the common terminal, t hat

exceeds the maximum rating of that terminal.

Power Disconnect The power cord disconnects the product from the power

source. Do not block the power cord; it must remain accessible to the user at all

times.

Do Not Operate Without Covers. Do not operate this product with covers or panels

removed.

Avoid Exposed Circuitry. Do not touch exposed connections and components

when power is present.

Do Not Operate With Suspected Failures. If you suspect there is damage to this

product, have it inspected by qualified service personnel.

Do Not Operate in Wet/Damp Conditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

To Avoid Fire or

Personal Injury

General Safety Summary

vi

ECO422D SD/HD C hangeover Unit Instruction Manual

Terms in this Manual. These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result

in injury or loss of life.

CAUTION. Caution statements i dentify conditions or practices that could result in

damage to this product or other property.

Terms on the Product. These terms may appear on the product:

DANGER indicates an injury hazard immediately accessible as you read the

marking.

WARNING indicates an injury hazard not immediately accessible as you read the

marking.

CAUTION indicates a hazard to property including the product.

Symbols on the Product. The following symbols may appear on the product:

CAUTION

Refer to Manual

WARNING

High Voltage

Protective Ground

(Earth) Terminal

Symbols and Terms

ECO422D SD/HD C hangeover Unit Instruction Manual

vii

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, switch off the instrument power, then

disconnect the power cord from the mains power.

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.

Service Safety Summary

viii

ECO422D SD/HD C hangeover Unit Instruction Manual

ix

Preface

This manual contains operating and servicing information for the ECO422D.

The information i ncluded in this manual explains how to operate, verify, and

service the system:

H Operating Basics explains the controls, i ndicators, connectors, and how to

operate the instrument.

H Specifications describes functional characteristics and performance require-

ments for the ECO422D.

H Theory of Operation explains how the ECO422D operates.

H Performance Verification describes how to verify the functional performance

of the ECO422D.

H Adjustment Procedures gives the field adjustment procedures.

H Maintenance contains the following information:

H How to safely handle static sensitive modules and components

H How to remove and replace replaceable parts

H Corrective maintenance information

H Replaceable Electrical Parts lists all replaceable parts in the ECO422D.

H Replaceable Mechanical Parts lists all replaceable parts in the ECO422D to

a module level. Parts are identified on an indexed illustration t o make them

easier to identify.

H Appendices

H Options lists the available options for the ECO422D.

H Index

Preface

x

ECO422D SD/HD C hangeover Unit Instruction Manual

Product Documentation

The following table lists the documentation that is available for the product and

shows where you can find it: in a printed manual, on the product documentation

CD--R OM, or on the Tektronix Web site at www.tektronix.com.

Table i: Product documentation

Item / Tektronix part number Purpose Location

ECO422D SD/HD Changeover Unit

Installation and Safety Instructions

071--2683--XX

Provides safety and compliance information

with hardware installation instructions to

present the associated safety warnings.

Printed manual and also available in electronic

form on the Product Documentation CD and at

www.tektronix.com/manuals

ECO422D SD/HD Changeover Unit

Instruction Manual (this manual)

077--0354--XX

Provides operation and application informa-

tion.

Electronic format on the Product Documenta-

tion CD and at www.tektronix.com/manuals

ECO422D SD/HD Changeover Unit

Reference Card

061--4234--XX

Provides a summary of factory default and

user switch settings.

Printed format and also available in electronic

form on the Product Documentation CD and at

www.tektronix.com/manuals

Operating Basics

ECO422D SD/HD C hangeover Unit Instruction Manual

1-1

Operating Basics

Controls and Indicators

Figure 1--1 shows the layout of the ECO422D front-panel controls and indica-

tors.

Figure 1- 1: Front-panel controls

Sync Source - Primary/Backup. The LED indicates the current Output (whether it

is from the Primary or Backup input). It can be manually changed using the Sync

Source button. (If the ECO422D is in Normal mode, this is only true when the

other input is good or both inputs are bad. Refer to User Configuration Switch

(S14--8) on page 1--4.) Only one of these LEDs can be on. Primary is the default

at power-on.

Auto Switching - Switch on Fault/Disabled. This selects whether the ECO422D

will automatically switch to t he other input source whenever it detects a fault

(Switch on Fault) or not switch (Disabled). Only one of these LEDs can be on

after the power-on delay. Switch on Fault is the default setting. During power-on,

the DISABLED LED slowly blinks to indicate disabled front panel and error

detection during the power--on delay.

Fault Indicator (Reset) - Primary/Backup. Either one or both of these LEDs could

be on. They indicate that a fault has occurred on the input. Press the Reset button

to clear the fault indicators (turn off the LEDs) after the fault has been corrected.

The fault indicator does not automatically reset after an error condition improves.

At power-on, the LEDs are reset.

Front Panel - Enabled/Locked Out. This control determines whether or not the

operator has access to the other front-panel controls. If it is Enabled, then the

user can control the instrument from the front panel. If it is Locked Out, then the

user can only toggle back to Enabled and no other front-panel controls are

available. The ECO422D will automatically lock out after about 1 minute of

inactivity to prevent accidental switching. The front panel is automatically

locked out at power-on (during power on, both LEDs are lit).

Operating Basics

1-2

ECO422D SD/HD C hangeover Unit Instruction Manual

Channel Configuration Switch (11 dip switches S1 - S11; see Figure 1- 2). These

switches select the signal t ype checked on a channel by setting the amplitude

comparison level. Only one switch from each DIP package should be enabled

(closed) for each channel, except for attenuation (DIP 8 on switches S7 through

S11), which is allowed to be combined with either of the user-defined levels.

S6 S5 S4 S3 S2 S1

S11 S10 S9 S8 S7 S14

BACK

FRONT (SWITCHES SHOWN IN DEFAULT POSITION)

S13

Figure 1- 2: Default position of the user configuration a nd mode switches

Internal Controls

Page is loading ...

Tektronix ECO422D User manual

Tektronix ECO422D User manual

Related papers

Other documents