Tektronix ECO8000 Series User manual

xx
ECO8000 Series
Automatic Changeover Unit
ZZZ
Service Manual
*P077088000*
077-0880-00

ECO8000 Series
Automatic Changeover Unit
ZZZ
Service Manual
xx
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Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries
or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.

Warranty
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)
year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its
option, either will repair the defective product without charge for parts and labor, or will provide a replacement
in exchange for the defective product. 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 expiration of
the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible
for packaging and shipping the defective product to the service center designated by Tektronix, with shipping
charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within
the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping
charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product;
b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage
or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or
integrated with other products when the effect of such modification or integration increases the time or difficulty
of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX 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.
[W2 – 15AUG04]

Table of Contents
Important safety information...................................................................................... v
General safety summary ...................................................................................... v
Service safety summary..................................................................................... vii
Terms in this manual ........................................................................................ viii
Symbols and terms on the product......................................................................... viii
Preface.............................................................................................................. ix
Manual structure and conventions ........................................................................... x
Product documentation....................................................................................... xi
Operating basics
Operating basics .................................................................................................. 1-1
Production description ...................................................................................... 1-1
Operation information....................................................................................... 1-2
Power connection ....................................................................................... 1-2
Overview of instrument operation .................................................................... 1-3
Web User Interface ..................................................................................... 1-4
Upgrades................................................................................................. 1-5
Theory of operation
Theory of operation .............................................................................................. 2-1
Instrument level.............................................................................................. 2-1
Main board ................................................................................................... 2-4
Processor board .............................................................................................. 2-5
Channel modules............................................................................................. 2-6
Front Panel assembly........................................................................................ 2-7
Power Supply modules...................................................................................... 2-8
Combiner board.............................................................................................. 2-9
Maintenance
Maintenance....................................................................................................... 3-1
Preventing ESD.............................................................................................. 3-2
Inspection and cleaning ..................................................................................... 3-3
Remove and replace procedures ........................................................................... 3-6
Repackaging instructions ................................................................................. 3-25
ECO8000 Series Service Manual i

Table of Contents
Troubleshooting
Troubleshooting................................................................................................... 4-1
General troubleshooting strategy........................................................................... 4-1
Solutions to common problems ............................................................................ 4-2
Troubleshooting procedures ................................................................................ 4-4
Check the power-on self test........................................................................... 4-4
Check the state of the Power Supply module LEDs ................................................ 4-5
Check the diagnostic readouts......................................................................... 4-7
Check the cable connections......................................................................... 4-15
Check the Combiner board voltages................................................................ 4-16
Check the Main board 3.3 V supply and that the PLD is programmed ......................... 4-18
Check the Processor board........................................................................... 4-19
Check a channel threshold level..................................................................... 4-19
Check an HREF/Relay channel termination ....................................................... 4-20
Check that the channel is enabled................................................................... 4-21
Disable the Relay Check function for an HREF/Relay channel ................................. 4-22
Execute the Initialize Hardware function ............... .................. .................. ....... 4-23
Replaceable Parts
Replaceable parts ................................................................................................. 5-1
Parts ordering information.................................................................................. 5-1
Using the replaceable parts lists............................................................................ 5-2
Index
Index
ii ECO8000 Series Service Manual

List of Figures
Figure 1-1: Location of rear panel power connectors (ECO8000 shown) ................................. 1-2
Figure 2-1: ECO8000 Series subsystems (ECO8020 with Option DPW shown) ......................... 2-1
Figure 2-2: ECO8000 Series high-level block diagram...................................................... 2-3
Figure 3-1: Installing or removing the instrument into or from the rack .......... ......................... 3-7
Figure 3-2: Removing the top cover ........................................................................... 3-8
Figure 3-3: Board locator and cable routing diagram ...................................................... 3-10
Figure 3-4: Removing the cable tie........................................................................... 3-11
Figure 3-5: Removing the multi-wire channel cables ............. .................. ....................... 3-11
Figure 3-6: Removing the circuit board support bracket................................................... 3-12
Figure 3-7: Removing the BNC nuts from a channel module............................................. 3-13
Figure 3-8: Removing a channel module .................................................................... 3-13
Figure 3-9: Installing channel cable example: Slot 1 on the Main board to the channel 1 module ... 3-14
Figure 3-10: Disconnecting the Main board power cable from the Combiner board................... 3-16
Figure 3-11: Threading the power cables through the circuit board support bracket ................... 3-17
Figure 3-12: Positioning the support bracket tabs with the circuit boards ............ ................... 3-18
Figure 3-13: Installing the channel 1 board cable (Slot 1 to channel 1 board) .......................... 3-19
Figure 3-14: Disconnecting the line filter power cables from the Combiner board..................... 3-20
Figure 3-15: Light pipe connections ......................................................................... 3-21
Figure 4-1: Component locations on the Combiner board................................................. 4-17
Figure 4-2: Component locations on the Processor and Main boards .................................... 4-18
Figure 5-1: Front panel assembly and Power Supply module............................................... 5-3
Figure 5-2: Main chassis and ECO8000 rear panel........................................................... 5-5
Figure 5-3: ECO8020 rear panel................................................................................ 5-8
ECO8000 Series Service Manual iii

Table of Contents
List of Tables
Table 3-1: External inspection checklist ....................................................................... 3-3
Table 3-2: Internal inspection checklist........................................................................ 3-4
Table 3-3: Required tools........................................................................................ 3-6
Table 4-1: Troubleshooting common problems............................................................... 4-2
Table 4-2: Self test error codes.................................................................................. 4-4
Table 4-3: Power on LED states for a Power Supply module ............................................... 4-5
Table 4-4: Power off LED states for a Power Supply module............................................... 4-6
Table 5-1: Front panel assembly and Power Supply module replaceable parts list ....................... 5-4
Table 5-2: Main chassis and ECO8000 rear panel replaceable parts list .................................. 5-6
Table 5-3: ECO8020 rear panel replaceable parts list ....................................................... 5-8
iv ECO8000 Series Service Manual

Important safety information
This manual contains information and warnings that must be followed by the user
for safe operation and to keep the product in a safe condition.
To safely perform service on this product, additional information is provided at
the end of this section. (See page vii, Service safety summary.)
General safety summary
Use the product only as specified. Review the following safety precautions to
avoid injury and prevent damage to this product or any products connected to it.
Carefully read all instructions. Retain these instructions for future reference.
Comply with local and national safety codes.
For correct and safe operation of the product, it is essential that you follow
generally accepted safety procedures in addition to the safety precautions specified
in this manual.
The product is designed to be used by trained personnel only.
Only qualified personnel who are aware of the hazards involved should remove
the cover for repair, maintenance, or adjustment.
Before use, always check the product with a known source to be sure it is
operating correctly.
This product is not intended for detection of hazardous voltages.
Use personal protective equipment to prevent shock and arc blast injury where
hazardous live conductors are exposed.
While using this product, you may need to access other parts of a larger system.
Read the safety sections of the other component manuals for warnings and
cautions related to operating the system.
When incorporating this equipment into a system, the safety of that system is the
responsibility of the assembler of the system.
ECO8000 Series Service Manual v

Important safety information
To avoid fire or personal
injury
Use proper power cord. Use only the power cord specified for this product and
certified for the country of use.
Do not use the provided power cord for other products.
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, make sure that the product is properly grounded.
Do not disable the power cord grounding connection.
Power disconnect. The power cord disconnects the product from the power
source. See instructions for the location. Do not position the equipment so that
it is difficult to operate the power cord; it must remain accessible to the user at
all times to allow for quick disconnection if needed.
Observe all terminal ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product.
Do not operate without covers. Do not operate this product with covers or panels
removed, or with the case open. Hazardous voltage exposure is possible.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Disable the product if it is damaged. Do not use the product if it is damaged
or operates incorrectly. If in doubt about safety of the product, turn it off and
disconnect the power cord. Clearly mark the product to prevent its further
operation.
Examine the exterior of the product before you use it. Look for cracks or missing
pieces.
Do not operate in wet/damp conditions. Be aware that condensation may occur if
a unit is moved from a cold to a warm environment.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry. Remove the input signals before you clean
the product.
vi ECO8000 Series Service Manual

Important safety information
Provide proper ventilation. Refer to the installation instructions in the manual for
details on installing the product so it has proper ventilation.
Slots and openings are provided for ventilation and should never be covered or
otherwise obstructed. Do not push objects into any of the openings.
Provide a safe working environment. Always place the product in a location
convenient for viewing the display and indicators.
Be sure your work area meets applicable ergonomic standards. Consult with an
ergonomics professional to avoid stress injuries.
Use only the Tektronix rackmount hardware specified for this product.
Servicesafetysummary
The Service safety summary section contains additional information required to
safely perform service on the product. Only qualified personnel should perform
service procedures. Read this Service safety summary and the General safety
summarybefore performing any service procedures.
To avoid electric shock. Do not touch exposed connections.
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 product power and
disconnect the power cord from the mains power before removing any covers or
panels, or opening the case for servicing.
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.
Verify safety after repair. Always recheck ground continuity and mains dielectric
strength after performing a repair.
ECO8000 Series Service Manual vii

Important safety information
Termsinthismanual
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.
Symbols and 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.
When this symbol is marked on the product, be sure to consult the manual
to find out the nature of the potential hazards and any actions which have to
betakentoavoidthem. (Thissymbolmayalsobeusedtorefertheuserto
ratings in the manual.)
The following symbol(s) may appear on the product:
viii ECO8000 Series Service Manual

Preface
Preface
This manual provides information needed to service an ECO8000 Series
Automatic Changeover Unit to the module level.
If the instrument does not function properly, troubleshooting and corrective
measures should be taken immediately to prevent additional problems.
NOTE. Contact your local Tektronix representative for information on where to
return your instrument if it requires repair during the warranty period.
To prevent personal injury or damage to the ECO8000 Series, consider the
following before beginning service:
The procedures in this manual should be performed only by a qualified service
person.
Read the General safety summary. (Seepagev.)
Read the Service safety summary. (Seepagevii.)
When using this manual for servicing, be sure to follow all warnings, cautions,
and notes.
ECO8000 Series Service Manual ix

Preface
Manual structure and conventions
This manual is divided into the following sections:
Theory of operation contains circuit descriptions that support service to the
module level.
Maintenance contains information and procedures for performing
preventive and corrective maintenance for the SPG8000 generator. These
instructions include inspection and cleaning, remove and replace procedures,
troubleshooting and fault isolation to the module level, and repackaging
instructions.
Replaceable parts includes a table of all replaceable modules, their
descriptions, and their Tektronix part numbers.
Manual conventions This manual uses certain conventions with which you should become familiar.
Some sections of the manual contain procedures for you to perform. To keep those
instructions clear and consistent, this manual uses the following conventions:
Names of front panel controls and menus appear in the same case (initial
capitals, all uppercase, etc.) in the manual as is used on the ECO8000 Series
front panel and menus.
Instruction steps are numbered unless there is only one step.
Bold text refers to specific interface elements that you are instructed to select,
click, or clear.
Example: Press the ENTER button to access the NETWORK CONFIG
submenu.
Italic text refers to document names or sections. Italics are also used in
NOTES, CAUTIONS, and WARNINGS.
Example: The Theory of operation section includes a block diagram.
Modules. Throughout this manual, the term module appears. A module
is composed of electrical and mechanical assemblies, circuit cards, and
interconnecting cables.
Safety. Symbols and terms related to safety appear in the General safety summary.
xECO8000 Series Service Manual

Preface
Product documentation
The following product documentation is available on the Tektronix Web site
(www.tektronix.com).
Product documentation
To read about Use these documents
Product safety, installation, and
operation
ECO8000 Series User Manual
(Tektronix part number 071-3221-xx (English))
(Tektronix part number 077-0873-00 (Japanese))
(Tektronix part number 077-0874-00 (Russian))
ECO8000 Series Video System Integration Technical Reference
(Tektronix part number 077-0877-00)
Product specifications and
performance verification
ECO8000 Series Specifications and Performance Verification Technical Reference
(Tektronix part number 077-0876-00)
Servicing the product ECO8000 Series Service Manual
(Tektronix part number 077-0880-00)
Clearing or sanitizing the product ECO8000 Series Declassification and Security Instructions
(Tektronix part number 077-0879-00)
New features or known operational
issues
ECO8000 Series Release Notes
(Tektronix part number 077-0878-00)
Software licenses The software licenses used by the ECO8000 Series are available for download from the
Tektronix Web site. The licenses are bundled with the product firmware package.
ECO8000 Series Service Manual xi

Preface
xii ECO8000 Series Service Manual

Operating basics