Tektronix DTG5274, DTG5078 Service Manual
Service Manual
DTG5078 & DTG5274
Data Timing Generators
071-1285-00
This document supports firmware version 1.0.14
and above.
www.tektronix.com
Copyright E Tektronix Japan, Ltd. All rights reserved.
Copyright E Tektronix, Inc. All rights reserved.
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 Japan, Ltd. 5--9--31 Kitashinagawa, Shinagawa--ku, Tokyo 141 --0001 Japan
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077--0001
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
WARRANTY
Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship
for a period of one (1) year from the date of shipment. If a product proves defective during this warranty period, Tektronix,
at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in
exchange for the defective product.
In order to obtain service under this warranty, Customer must notify 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 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 O F 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 NO TICE OF THE POSSIBILITY OF SUCH
DAMAGES.
Table of Contents
Specifications
List of Figures iv............................................
List of Tables viii.............................................
General Safety Summary xi...................................
Service Safety Summary
Preface xv...................................................
Manual Structure xv................................................
Manual Conventions xvi..............................................
Finding Other Information xvi.........................................
Contacting Tektronix xvii.............................................
Introduction xix..............................................
Performance Verification Procedures xix.................................
Strategy for Servicing xix.............................................
Tektronix Service Offerings xx........................................
Product Description 1--1........................................
Models 1--1........................................................
Key Features 1--1....................................................
Mainframe and Output Module Configuration 1--3.........................
Product Software 1--3................................................
Software Upgrade 1--4................................................
Specifications 1--5.............................................
Electrical Specification 1--6...........................................
Miscellaneous 1--35...................................................
xiii.......................................
Operating Basics
Installation 2--1...............................................
Supplying Operating Power 2--2........................................
Checking the Environment Requirements 2--4.............................
Output Module 2--5..................................................
Powering On the Data Timing Generator 2--6.............................
Setting up Windows 2000 2--7..........................................
Shutting Down the Data Timing Generator 2--8............................
Creating an E mergency Rescue Disk 2--10.................................
Backing Up User Files 2--12............................................
Installing Software 2--12...............................................
Operating Basics 2--13..........................................
Front Panel Controls 2--13..............................................
Front Panel Connectors 2--17...........................................
Rear Panel Connectors 2--19............................................
Peripherals on the Rear Panel 2--23.......................................
Display Area and Application Windows 2--24..............................
Using the Menu System 2--51...........................................
DTG5078 & DTG5274 Data Timing Generator Service Manual
i
Table of Contents
Theory of Operation
Theory of Operation 3--1.......................................
Interconnect Diagrams 3--1............................................
Block Diagrams 3--6.................................................
Performance Verification
Performance Verification 4--1...................................
Conventions in this manual 4--1........................................
Self Tests 4-- 3.......................................................
Performance Tests 4--10................................................
Mainframe 4--15.....................................................
Output Module 4--62..................................................
Adjustment Procedures
Adjustment Procedures 5--1.....................................
Maintenance
Maintenance 6 --1..............................................
Related Maintenance Procedures 6--1....................................
Preparation 6--2.....................................................
Inspection and Cleaning 6--4...........................................
Removal and Installation Procedures 6--9.........................
Preparation for Use 6--9...............................................
Access Procedure 6--15................................................
Procedures for External Modules 6--16....................................
Procedures for Internal Modules (Lower) 6--31.............................
Procedures for Internal Modules (Upper) 6--38.............................
Troubleshooting 6--45...........................................
Troubleshooting tree 6 --45..............................................
Diagnostics 6-- 53.....................................................
System Recovery 6--69..........................................
Requirements for System Recovery 6--69..................................
Operating Procedure 6--69..............................................
Service Password 6--73..........................................
Set up into the Service mode 6--73.......................................
Serial number registration 6--73.........................................
Replaceable Electrical Parts
Electrical Parts List 7 --1........................................
Diagrams
Diagrams 8--1.................................................
Replaceable Mechanical Parts
Replaceable Mechanical Parts 9--1...............................
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DTG5078 & DTG5274 Data Timing Generator Service Manual
Table of Contents
Parts Or dering Information 9--1.........................................
Using the Replaceable Parts List 9--2....................................
DTG5078 & DTG5274 Data Timing Generator Service Manual
iii
Table of Contents
List of Figures
Figure 1--1: DC Output channel assignment 1--8....................
Figure 1--2: Frequency response of clock output 1--10................
Figure 1--3: Signal timing 1--15...................................
Figure 1--4: DTG5078 Master-Slave connection 1--16.................
Figure 1--5: DTG5274 Master-Slave connection 1--17.................
Figure 1--6: Channel addition function 1--24........................
Figure 1--7: The definitions of Lead/Trail Delay and Pulse Width 1--25..
Figure 1--8: Maximum Lead Delay 1--25...........................
Figure 1--9: Output voltage window and clock out (DTGM30) 1--33....
Figure 1--10: Equivalent circuit of DTGM10 and DTGM20 outputs 1--34
Figure 1--11: Equivalent circuit of DTGM30 output 1--34.............
Figure 2--1: Principal power switch and AC power connector 2--6.....
Figure 2--2: On/Standby switch location 2--6.......................
Figure 2--3: Front panel controls 2--14.............................
Figure 2--4: Front panel connectors 2--17...........................
Figure 2--5: Rear panel connectors 2--19............................
Figure 2--6: Locations of peripheral connectors on rear panel 2--23.....
Figure 2--7: Screen elements just after t he power on 2--24.............
Figure 2--8: Toolbar 2--29........................................
Figure 2--9: Status bar 2--30......................................
Figure 2--10: Channel Group window 2--31.........................
Figure 2--11: Blocks window 2--32.................................
Figure 2--12: Data-Listing window 2--34............................
Figure 2--13: Data-Waveform window 2--36.........................
Figure 2--14: Level window 2--38..................................
Figure 2--15: Timing window (Data Generator mode) 2--40............
Figure 2--16: Time Base window 2--42..............................
Figure 2--17: Sequence window 2--44..............................
Figure 2--18: Subsequence window 2--46...........................
Figure 2--19: Jitter Generation window 2--48........................
Figure 2--20: DC O utput window 2--49.............................
Figure 2--21: Menu selection 2--51.................................
Figure 2--22: Window operation 1: Time Base window 2--52...........
Figure 2--23: Window operation 2: Timing window 2--53..............
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DTG5078 & DTG5274 Data Timing Generator Service Manual
Table of Contents
Figure 2--24: Window operation 3: Data-Listing window 2--54.........
Figure 2--25: Window operation 4: Channel Group window 2--56......
Figure 2--26: Window operation 5: Sequence window 2 --57............
Figure 3--1: DTG5078 interconnection diagram 3--4.................
Figure 3--2: DTG5274 interconnection diagram 3--5.................
Figure 3--3: DTG5078 block diagram 3--7.........................
Figure 3--4: DTG5274 block diagram 3--8.........................
Figure 4--1: Diagnostics dialog 4--4...............................
Figure 4--2: Level Calibration dialog 4--6..........................
Figure 4--3: Skew Calibration dialog 4 --8..........................
Figure 4--4: Skew Calibration results screen 4--9....................
Figure 4--5: Open Setup dialog 4--13...............................
Figure 4--6: Sync output tests 4--16................................
Figure 4--7: Internal Clock Frequency tests 4--18....................
Figure 4--8: External Clock Output tests 4--20.......................
Figure 4--9: External Clock Input tests 4--23........................
Figure 4--10: 10 MH z Reference Input tests 4--25....................
Figure 4--11: 10 MHz Reference Output tests 4--27...................
Figure 4--12: Phase Lock Input tests 4--28..........................
Figure 4--13: Internal Trigger tests 4--30...........................
Figure 4--14: Event Input and Sequence tests 4--34...................
Figure 4--15: Data pattern example 4--36...........................
Figure 4--16: Jitter Generation tests 4--38...........................
Figure 4--17: Jitter Generation exam ple (all) 4--39...................
Figure 4--18: Jitter Generation exam ple (partial) 4--41................
Figure 4--19: DC Output tests 4--42................................
Figure 4--20: Delay timing t ests 4--44..............................
Figure 4--21: Clock out random jitter tests 4--48.....................
Figure 4--22: Clock out random jitter sample 4 --49...................
Figure 4--23: Random jitter tests 4--50.............................
Figure 4--24: Random jitter waveform sam ple 4--52..................
Figure 4--25: Total jitter waveform sample 4--54.....................
Figure 4--26: PG Mode tests 4--55.................................
Figure 4--27: Master-Slave operation tests 4--58.....................
Figure 4--28: DTG5000 Configuration Utility dialog 4--59.............
Figure 4--29: Master-Slave operation waveform sample 4--60..........
Figure 4--30: Data output DC level tests 4--63.......................
DTG5078 & DTG5274 Data Timing Generator Service Manual
v
Table of Contents
Figure 4--31: Data format tests 4--67...............................
Figure 4--32: Pulse pattern example 4--68...........................
Figure 4--33: RZ waveform example 4--69..........................
Figure 4--34: R1 waveform example 4--69...........................
Figure 6--1: Instrument orientation (DTG5078) 6--11................
Figure 6--2: External modules 6--12................................
Figure 6--3: Front Panel assem bly & Display assembly 6--13...........
Figure 6--4: Internal modules (Lower) 6--14.........................
Figure 6--5: Internal modules (Upper) 6 --14.........................
Figure 6--6: Output Module removal 6--17..........................
Figure 6--7: Modules on the rear panel 6--18........................
Figure 6--8: Loose the screws 6--18................................
Figure 6--9: CD--ROM module removal 6--19........................
Figure 6--10: Loose the screws 6--19...............................
Figure 6--11: Loose the screws 6--20...............................
Figure 6--12: Cabinet removal 6--21...............................
Figure 6--13: Remove the screws 6--22..............................
Figure 6--14: Front Panel assembly removal 6--23....................
Figure 6--15: Front Panel assembly removal 6--24....................
Figure 6--16: FD drive removal 6 --24...............................
Figure 6--17: Front panel chassis removal 6--25......................
Figure 6--18: A20 Front Key & DC Output board removal 6--26........
Figure 6--19: A22 Power Switch Board removal 6--27.................
Figure 6--20: Display assembly removal 6--28.......................
Figure 6--21: Inverter board removal 6--29.........................
Figure 6--22: Fan removal 6--30...................................
Figure 6--23: Support bracket removal 6--32........................
Figure 6--24: Unplug the cables and connectors 6--33.................
Figure 6--25: Unplug the cables and connectors 6--35.................
Figure 6--26: Unplug the cables and connectors 6--37.................
Figure 6--27: Power supply removal 6--39...........................
Figure 6--28: A10 Connector & PCI Interface board removal 6--40.....
Figure 6--29: A10 Connector & PCI Interface board removal 6--41.....
Figure 6--30: Compact PCI Frame removal 6--42....................
Figure 6--31: A30 Compact PCI Backplane removal 6--43.............
Figure 6--32: Primary troubleshooting procedure (1) 6--46............
Figure 6--33: Primary troubleshooting procedure (2) 6--47............
Figure 6--34: Primary troubleshooting procedure (3) 6--48............
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DTG5078 & DTG5274 Data Timing Generator Service Manual
Table of Contents
Figure 6--35: Troubleshooting procedur e B — Display section 6--48....
Figure 6--36: Troubleshooting procedur e A -- Power Supply
and A10 board section 6--49..........................
Figure 6--37: Test point on the A10 Connector board 6--50............
Figure 6--38: Diagnostics dialog box 6--54..........................
Figure 6--39: Diagnostics error code format 6--58....................
Figure 6--40: Service Password dialog box 6--73.....................
Figure 6--41: Set Serial Number dialog box 6--74....................
Figure 9--1: Main Chassis (1) (DTG5078) 9--5......................
Figure 9--2: Main Chassis (1) (DTG5274) 9--7......................
Figure 9--3: Main Chassis (2) 9--10................................
Figure 9--4: Main Chassis & Cabinet 9--11..........................
Figure 9--5: A30 & Com pact PCI Frame 9--13.......................
Figure 9--6: Power Supply 9--15...................................
Figure 9--7: Floppy Disk Drive 9--16...............................
Figure 9--8: A10 Connector & PCI Interface 9--17...................
Figure 9--9: A32 CDROM Extender 9--19...........................
Figure 9--10: Front Panel (DTG5078) 9--21.........................
Figure 9--11: Front Panel (DTG5274) 9--23.........................
Figure 9--12: Cabinet 9--25.......................................
Figure 9--13: Plug--In Box (DTG5078) 9--27.........................
Figure 9--14: Plug--In Box (DTG5274) 9--29.........................
Figure 9--15: Blank Plug--In 9--31.................................
Figure 9--16: DTGM10 9--33.....................................
Figure 9--17: DTGM20 9--35.....................................
Figure 9--18: DTGM30 9--37.....................................
Figure 9--19: Op 1R (Rack Mount) 9--38...........................
DTG5078 & DTG5274 Data Timing Generator Service Manual
vii
Table of Contents
List of Tables
Table 1--1: DTG5000 series key features 1--2......................
Table 1--2: Operation mode 1--6................................
Table 1--3: Sequencer 1--6......................................
Table 1--4: Clock Generator 1--7................................
Table 1--5: Internal Trigger Generator 1--7.......................
Table 1--6: DC Output 1 --7.....................................
Table 1--7: Clock Out 1--8......................................
Table 1--8: External Clock In 1--10...............................
Table 1--9: 10 MHz Reference In 1--11............................
Table 1--10: 10 MHz Reference Out 1--11..........................
Table 1--11: Phase Lock In 1--11.................................
Table 1--12: Skew Cal In 1--12...................................
Table 1--13: Trigger In 1--12.....................................
Table 1--14: Sync Out 1--13.....................................
Table 1--15: Sync Clock In 1--13.................................
Table 1--16: Sync Clock Out 1, Out 2 and Out 3 1--13...............
Table 1--17: Sync Jump In 1--14.................................
Table 1--18: Sync Jump Out 1, Out 2 and Out 3 1--14...............
Table 1--19: Event In 1--17......................................
Table 1--20: CPU module and peripheral devices 1--18...............
Table 1--21: Display 1--19.......................................
Table 1--22: DG Mode 1--19.....................................
Table 1--23: Clock Range in NRZ 1--23............................
Table 1--24: Clock Range in RZ/R1 1--24..........................
Table 1--25: Delay Offset 1--24...................................
Table 1--26: Lead Delay 1--26....................................
Table 1--27: Trail Delay 1--26....................................
Table 1--28: Jitter Amplitude 1--27...............................
Table 1--29: PG Mode 1--28.....................................
Table 1--30: DTGM10 1--30.....................................
Table 1--31: DTGM20 1--31.....................................
Table 1--32: DTGM30 1--32.....................................
Table 1--33: Mechanical 1--35....................................
Table 1--34: Installation requirement 1--36.........................
Table 1--35: Environmental 1--36.................................
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DTG5078 & DTG5274 Data Timing Generator Service Manual
Table of Contents
Table 1--36: Power Supply 1--37.................................
Table 1--37: Certifications and compliances 1--38...................
Table 1--38: Installation category and Pollution degree 1--39..........
Table 2--1: Power-cord conductor identification 2--2................
Table 2--2: Power cord identification 2--3.........................
Table 2--3: Operating requirem ents 2--4..........................
Table 2--4: Additional connection information 2--23.................
Table 2--5: Control box menus 2--24...............................
Table 2--6: File menus 2--25......................................
Table 2--7: View menus 2--25.....................................
Table 2--8: Settings menus 2--27..................................
Table 2--9: System menus 2--27...................................
Table 2--10: Options menu 2--28..................................
Table 2--11: Help menus 2--28....................................
Table 2--12: Status Bar 2--30.....................................
Table 2--13: Edit menus for Channel Group window 2--31............
Table 2--14: Setup items for Blocks window 2--33....................
Table 2--15: Edit menus for Blocks window 2--33....................
Table 2--16: Edit menus for Data-Listing window 2--35...............
Table 2--17: Edit menus for Data-Waveform window 2--36............
Table 2--18: Setup items for Level window 2--38.....................
Table 2--19: Edit menus for Level window 2--39.....................
Table 2--20: Setup items for Timing window 2--40...................
Table 2--21: Edit menus for Timing window 2--41...................
Table2--22:SetupitemsforTimeBasewindow 2--42................
Table 2--23: Setup items for Sequence window 2--44.................
Table 2--24: Edit menus for Sequence window 2--45.................
Table 2--25: Setup items for Subsequence window 2--46..............
Table 2--26: Edit menus for Subsequence window 2--47..............
Table 2--27: Setup items for Jitter Generation window 2--48..........
Table 2--28: Setup items for DC Output window 2--49................
Table 2--29: Edit menus for DC output window 2--50................
Table 2--30: Key operations 2--61.................................
Table 4--1: Performance test items 4--10...........................
Table 4--2: Test equipment 4--11..................................
Table 4--3: Performance check files 4--14...........................
Table 4--4: DTGM10 High Level Voltage Accuracy 4--64.............
DTG5078 & DTG5274 Data Timing Generator Service Manual
ix
Table of Contents
Table 4--5: DTGM10 Low Level Voltage Accuracy 4--64..............
Table 4--6: DTGM20 High Level Voltage Accuracy 4--64.............
Table 4--7: DTGM20 Low Level Voltage Accuracy 4--65..............
Table 4--8: DTGM30 High Level Voltage Accuracy 4--66.............
Table 4--9: DTGM30 Low Level Voltage Accuracy 4--66..............
Table 6--1: Relative susceptibility to static-discharge damage 6--3.....
Table 6--2: External inspection check list 6--5......................
Table 6--3: Internal inspection check list 6--6......................
Table 6--4: Tools requir ed for module removal 6--10.................
Table 6--5: Performance Test 6--51................................
Table 6--6: Diagnostics dialog box buttons 6--54.....................
Table 6--7: Information on Status 6--57............................
Table 6--8: Category of the Diagnostics Error Code 6--59.............
Table 6--9: Error Codes 6--60....................................
x
DTG5078 & DTG5274 Data Timing Generator Service Manual
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.
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.
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.
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.
The common terminal is at ground potential. Do not connect the common
terminal to elevated voltages.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
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.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
DTG5078 & DTG5274 Data Timing Generator Service Manual
xi
General Safety Summary
Symbols and Terms
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on the Product. These terms may appear on the product :
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
WARNING
High Voltage
Protective Ground
(Earth) Terminal
CAUTION
Refer to Manual
Double
Insulated
xii
DTG5078 & DTG5274 Data Timing Generator Service Manual
Service Safety Summary
DTG5000 SeriesOnly 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 mains 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.
Calendar (date and time) Backup Battery. This product contains a Lithium:polycarbon monofluoride battery for calendar backup purposes. This battery is part of
the CPU unit and is not replaceable.
DTG5078 & DTG5274 Data Timing Generator Service Manual
xiii
Service Safety Summary
xiv
DTG5078 & DTG5274 Data Timing Generator Service Manual
Preface
Manual Structure
This manual provides information necessary for service technicians to service the
DTG5000 Series Data Timing Generator to the module level.
This manual is divided into sections, such as Specifications and Theory of
Operation. Further, some sections are divided into subsections, such as Product
Description and Removal and Installation Procedures.
Sections containing procedures also contain introductions to those procedures.
Be sure to read these introductions because they provide information needed to
do the service correctly and efficiently. The following contains a brief description
of each manual section.
H Specifications contains a description of the data timing generator and the
characteristics t hat apply to it.
H Operating Information includes general information and operating
instructions.
H Theory of Operation contains circuit descriptions that support service to the
module level.
H Performance Verification contains procedures for confirming that the data
timing generator functions properly and meets warranted limits.
H Adjustment Procedures contains information that you need to manually
adjust the data timing generator so that it meets specifications.
H Maintenance contains information and procedures for performing preventive
and corrective maintenance of the data timing generator. These instructions
include cleaning, module removal and installation, and fault isolation to the
module.
H Replaceable Electrical Parts contains a statement referring you to Replace-
able Mechanical Parts, where both electrical and mechanical modules are
listed.
H Diagrams contains block diagrams and an interconnection diagram.
H Replaceable Mechanical Parts includes a table of all replaceable modules,
their descriptions, and their Tektronix part numbers.
DTG5078 & DTG5274 Data Timing Generator Service Manual
xv
Preface
Manual Conventions
This manual uses certain conventions that you should become familiar with.
Some sections of the manual contain procedures for you to perform. To keep
those instructions clear and consistent, this manual uses the following conventions:
H Name of front panel controls and menus appears in the same case (initial
capitals, all uppercase, and so on) in the manual as is used on the data timing
generator front--panel and menus. Front --panel names are all upper case
letters (for example, MENU, SELECT, PULSE GEN, and so on).
H Instruction steps are numbered unless there is only one step.
Modules
Safety
Throughout this manual, any replaceable component, assembly, or part of the
data timing generator is referred to generically as a module. In general, a module
is an assembly (like a circuit board), rather than a component (like a resistor or
an integrated circuit). Someti mes a single component is a module; for example,
the chassis of the data timing generator is a module.
Symbols and terms related to safety appear in the Safety Summary near the
beginning of this manual.
Finding Other Information
This manual mainly focuses on the performance verification, troubleshooting and
maintenance of the data timing generator. See the following list for other
documents supporting the data timing generator operation.
Document name Description
DTG5000 Series Online Help An online help system, integrated with the User Interface application that ships with this
product. The help is preinstalled in the instrument.
DTG5000 Series User Manual, volume 1 A quick reference to major features of the instrument and how they operate. It also
provides several tutorials to familiarize the user with basic instrument features.
DTG5000 Series User Manual, volume 2 A comprehensive usage information on how to operate the instrument including the
descriptions of functions and menu operations.
DTG5000 Series Programmer Manual Provides complete information on programming commands and remote control of the
instrument.
xvi
DTG5078 & DTG5274 Data Timing Generator Service Manual
Contacting Tektronix
Preface
Phone 1-800-833-9200*
Address Tektronix, Inc.
Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
Web site www.tektronix.com
Sales support 1-800-833-9200, select option 1*
Service support 1-800-833-9200, select option 2*
Technical support Email: techsupport@tektronix.com
1-800-833-9200, select option 3*
6:00 a.m. -- 5:00 p.m. Pacific time
* This phone number is toll free in North America. After office hours, please leave a
voice mail message.
Outside North America, contact a Tektronix sales office or distributor; see the
Tektronix web site for a list of offices.
DTG5078 & DTG5274 Data Timing Generator Service Manual
xvii
Preface
xviii
DTG5078 & DTG5274 Data Timing Generator Service Manual
Introduction
This manual contains information that is needed to properly service the
DTG5000 Series Data Timing Generator as well as general information that is
critical to safe and effective servicing.
To prevent personal injury or damage to the data timing generator, consider the
following before attempting service:
H The procedures in this manual should be performed only by a qualified
service person.
H Read the General Safety Summary on page xi and the Service Safety
Summary, beginning on page xiii.
H Read Installation in Operating Information.
When using this manual for servicing, be sure to follow all warnings, cautions,
and notes.
Performance Verification Procedures
Strategy for Servicing
The performance check described in the Performance Verification section should
be done every 12 months. In addition, a performance check is recommended
after module replacement.
If the data timing generator does not meet performance criteria, repair is
necessary.
Throughout this manual, the term, module, refers to any field-replaceable
component, assembly, or part of the data timing generator.
This manual contains all the information needed for periodic maintenance of the
data timing generator. Further, it contains all information for corrective
maintenance down to the module level. To isolate a failure to a module, use the
troubleshooting procedures found in the Maintenance section. To remove and
replace any failed module, follow the instructions in the Removal and Installa-
tion Procedures subsection. After isolating a faulty module, replace it with a
fully-tested module obtained from the factory. The Replaceable Mechanical
Parts section contains part number and ordering information for all replaceable
modules.
DTG5078 & DTG5274 Data Timing Generator Service Manual
xix
Introduction
Tektronix Service Offerings
Tektronix provides service to cover repair under warranty as well as other
services 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 are well trained to service the data timing
generator. They have access to the latest information on improvements to the
DTG5000 Series as well as new options.
Warranty Repair Service
Self Service
Tektronix warrants this product for one year from date of purchase. The warranty
appears at the front of this manual. Tektronix technicians provide warranty
service at most Tektronix service locations. The Tektronix product catalog lists
all worldwide service locations.
Tektronix supports repair to the module level by providing Module Exchange.
Module Exchange. This service reduces down-time for repair by allowing you to
exchange most modules for remanufactured ones. Each module comes with a
90-day service warranty.
For More Information. Contact your local Tektronix service center or sales
engineer for more information on any of the repair or adjustment services just
described.
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DTG5078 & DTG5274 Data Timing Generator Service Manual
Specifications
DTG5078 & DTG5274 Data Timing Generator Service Manual
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Product Description
This section describes the DTG5000 Series Data Timing Generators and their
options. Following this description are two subsections:
H Installation shows you how to configure and install the data timing
generator, as well as how to reinstall the system software included with the
product.
H Accessories & Options lists the standard and optional accessories for this
product.
Models
This manual supports the following data timing generators:
H DTG5078 Data Timing Generator
H DTG5274 Data Timing Generator
The differences between the data timing generators will be called out when
necessary; otherwise, the material applies to all data timing generators. The word
“data timing generator” and “DTG5000 Series” refer to both products.
Key Features
The DTG5000 Series Data Timing Generator is a high speed/multichannel signal
generator which creates a wide range of digital timing signals. The products are
designed to generate a data pattern for standard and nonstandard pulses necessary
for functional tests or characterization of legacy devices (TTL, CMOS, ECL) as
well as the latest devices (PECL, LVDS, GTL, CML).
The DTG5000 Series Data Timing Generator supports three types of output
modules (DTGM10, DTGM20, and DTGM30). Table 1--1 lists the key features
of the data timing generators.
DTG5078 & DTG5274 Data Timing Generator Service Manual
1--1
Product Description
,
,
Table 1--1: DTG5000 series key features
DTG5078 DTG5274
Maximum clock frequency/
750 MHz/750 Mb/s 2.7GHz /2.7 Gb/s
Maximum data rate
Number of slots 8 (A, B, C, D, E, F, G, and H) 4 (A, B, C, and D)
Pattern length 240 to 8,000,000 words/channel 960 to 32,000,000 words/channel
Block size granularity 1 1 to 4 (depends on Vector Rate)
Sequence steps 1 to 8,000 steps 1 to 8,000 steps
Sequence repeat counter 1 to 65,536 or Infinite 1 to 65,536 or Infinite
Data Generator Mode
Slot A, B, C, D, E, F, G, and H Slot A, B, C, and D
Data format Slot A to D NRZ, RZ, and R1 Slot A to D NRZ, RZ, and R1
Slot E to H NRZ
Data rate NRZ 50 kb/s to 750 Mb/s NRZ 50 kb/s to 2.7 Gb/s
RZ and R1 50 kb/s to 375 Mb/s RZ and R1 50 kb/s to 1.35 Gb/s
Channel addition Slot A, B, C, and D Slot A, B, C, and D
Jitter generation Channel 1 of slot A Channel 1 of slot A
Lead delay resolution 1ps 0.2 ps
Trail delay resolution 5ps 5ps
Pulse width resolution 5 ps (slot A, B, C, and D) 5 ps (slot A, B, C, and D)
Pulse Generator Mode
Slot A, B, C, and D Slot A, B, C, and D
Clock frequency 50 kHz to 375 MHz 50kHzto1.35GHz
Output Module
Number of channel 4 4 2 2of4
Amplitude (50 Ω) 3.5 V
Amplitude (1 MΩ) 10 V
Rise time/fall time at 1 Vp-p
into 50 Ω (20% to 80%)
DTGM10 DTGM20 DTGM 30 DTGM10 DTGM20 DTGM 30
2of4
p-p
p-p
<540 ps
(variable)
(CH1, CH2)
1
3.5 V
p-p
7V
p-p
<340 ps
1.25 V
p-p
2.5 V
p-p
<110 ps <540 ps
(variable)
3.5 V
p-p
10 V
p-p
(variable)
1
(CH1, CH2)
3.5 V
p-p
7V
p-p
<340 ps
(variable)
Master-Slave Up to three (one Master, two Slaves) Up to two (one Master, one Slave)
2
1.25 V
p-p
2.5 V
p-p
<110 ps
1
This value is limited by the maximum output current (+/-- 40 mA, maximum).
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DTG5078 & DTG5274 Data Timing Generator Service Manual
Mainframe and Output Module Configuration
The DTG5000 Series Data Timing Generator offers card modular system. Three
types of the output modules can be combined in any combination. Each module
can be inserted into any slot. The functional restrictions are:
H 8 (eight) slots installed in the DTG5078 (A, B, C, D, E, F, G, and H)
H 4 (four) slots installed in the DTG5274 (A, B, C, and D)
H When the DTGM10 or DTGM20 is installed to the DTG5274, CH3 and
CH4 are not available. Only CH1 and CH2 can be used.
H Slot E, F, G, and H are not available in the Pulse Generator mode.
H Available data formats are different:
H NRZ, RZ, R1 (Slot A, B, C, and D)
H NRZ (Slot E, F, G, and H)
Product Description
Product Software
The data timing generator includes the following software:
H The system software, which includes a specially configured version of
Windows 2000, comes preinstalled on the data timing generator. Windows 2000 is the operating system on which the user-interface application of
this product runs, and provides an open desktop for you to install other
compatible applications.
NOTE. Do not attempt to substitute any version of Windows that is not specifically provided by Tektronix for use with this instrument.
H The DTG5000 Software comes preinstalled on the data timing generator.
This software runs on Windows 2000 Operating System is the data timing
generator application. This software starts automatically when the data
timing generator is powered on, and provides the user interface (UI) and all
other instrument control functions. You can also minimize the data timing
generator application.
H The product software runs not only on the data timing generator
mainframe, but also on the general PC. When the software runs on the
data timing generator mainframe, it is called Online mode. When it runs
on the PC, it is called Offline mode. In the Offline mode, it is possible to
create and edit the pattern data and set the output parameters.
DTG5078 & DTG5274 Data Timing Generator Service Manual
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Product Description
H The DTG5000 Configuration Utility comes preinstalled on the data timing
generator. This software, which runs on a Windows 2000 Operating System,
is used for setting up the system configurations for the DTG5000 Software.
This software controls the Master operation, Master--Slave operation,
Online/Offline operation, and so forth.
NOTE. When you use the DTG5000 software with the offline mode, you must also
install t he DTG5000 Configuration Utility on your PC.
H The Readme file contains release notes and updates that could not be
included in other product documentation.
H There are no limits on number of PCs that can operate in the offline mode.
Occasionally new versions of software for your instrument may become
available at our web site. See Contacting Tektronix on page xvii in the Preface
section for web site information.
Software Upgrade
Tektronix may offer software upgrade kits for the data timing generator. Contact
your Tektronix service representative for more information (see Contacting
Tektronix on page xvii).
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DTG5078 & DTG5274 Data Timing Generator Service Manual
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