Tektronix TLA7E2, TLA7D2, TLA7E1, TLA7D1 Service Manual

Service Manual

TLA Series Digitizing Oscilloscope Modules (TLA7D1, TLA7D2, TLA7E1, & TLA7E2)

070-9780-03

This document applies to firmware version 1.00 and above.

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

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Spec ifications and price change privileges reserved.

Tektronix, Inc., 14200 SW Karl Braun Drive, Beaverton, OR 97077

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 de signated 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 shal l be responsible for payi ng 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 connec tion to incompatible equipment; c) to repair any da mage 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 W ARRANTY 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 OF THIS W ARRANTY. 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.

Specifications

Operating Information

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

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

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

Manual Structure ix................................................

Manual Conventions x..............................................

Related Manuals x.................................................

Introduction xiii..............................................

Adjustment and Certification Interval xiii................................

Strategy for Servicing xiii.............................................

Service Offerings xiv................................................

Contacting Tektronix xv.............................................

Product Description 1--1..............................................

Characteristics Tables 1--2.............................................

Installation 2--1.....................................................

Software Installation and Removal 2--4..................................

Operating Information 2--6............................................

Theory of Operation

Block Level Description 3--1...........................................

Performance Verification

Summary Verification 4--1.............................................

Test Equipment 4--3..................................................

Functional Verification 4--4............................................

DSO Module Certification 4--7.........................................

Performance Verification Instructions 4--7................................

Performance Verification Tests 4--13.....................................

Adjustment Procedures

Prerequisites 5--1....................................................

Using the Software 5--2...............................................

Test Equipment 5--3..................................................

Adjustment Instructions 5--4...........................................

Adjustment Procedures 5--5............................................

Completing the Adjustment Steps 5--14...................................

Maintenance

Related Maintenance Procedures 6--1....................................

TLA Series Digitizing Oscilloscope Modules Service Manual

Table of Contents

Preventing ESD 6--1.................................................

Battery Disposal 6--2.................................................

Inspection and Cleaning 6--2...........................................

Removal and Installation Procedures 6--7.........................

Summary of Procedures 6--7...........................................

Tools Required 6--8..................................................

Injector/Ejector Handles 6--8...........................................

Cover 6--10..........................................................

Processor Board 6--13.................................................

Probe Compensation BNC Connector 6--16................................

Fuses 6-- 17..........................................................

Probe Interface 6--19..................................................

Acquisition Board 6--22................................................

Rear EMI Gaskets 6 --23................................................

Troubleshooting 6--25...........................................

Check for Common Problems 6--26......................................

Eliminate Other Problem Sources 6--26...................................

Troubleshoot the DSO Module 6--27......................................

Adjustment After Repair 6--34..........................................

Repackaging Instructions 6--35...................................

Packaging 6--35......................................................

Storage 6--35........................................................

Options

Tektronix Service Options 7--1.........................................

Replaceable Electrical Parts Diagrams Replaceable Mechanical Parts

Standard Accessories 10--1.............................................

Parts Ordering Information 10--1.........................................

Using the Replaceable Parts List 10--3....................................

TLA Series Digitizing Oscilloscope Modules Service Manual

List of Figures

Table of Contents

Figure 2--1: Logical address switches 2--2..........................

Figure 2--2: Module retainer screws and ejector mechanism 2--3......

Figure 2--3: Digitizing oscilloscope front panel 2--6..................

Figure 2--4: Typical system window 2--8...........................

Figure 4--1: Calibration/certification procedure flow chart 4--2.......

Figure 4--2: Calibration and Diagnostics property sheet 4--5..........

Figure 4--3: Initial setup for the DC gain accuracy test 4--14...........

Figure 4--4: Initial setup for the analog bandwidth test 4--16...........

Figure 4--5: Using a power meter to monitor the amplitude of the

sine wave generator during the analog bandwidth test 4--17........

Figure 4--6: Initial setup for the delay between channels test 4--19......

Figure 4--7: Initial setup for the timebase accuracy test 4--20..........

Figure 4--8: Initial setup for the main trigger accuracy test 4--22.......

Figure 4--9: Initial setup for the main trigger sensitivity test 4--23......

Figure 4--10: Initial setup for the probe compensation test 4--24........

Figure 5--1: Initial setup for the base calibration adjustment 5--6......

Figure 5--2: Initial setup for the frequency response adjustment 5--8...

Figure 5--3: Using a power meter to monitor the amplitude of the

sine wave generator during the frequency response adjustment 5--9

Figure 5--4: Initial setup for the channel-to-channel skew adjustment 5--12

Figure 5--5: Initial setup for the probe compensation test 5--13.........

Figure 6--1: Injector/ejector handle replacement 6--9................

Figure 6--2: Cover removal 6--10..................................

Figure 6--3: Seating the cover on the chassis 6--12....................

Figure 6--4: Processor board removal 6--14.........................

Figure 6--5: Inserting processor board tab into front subpanel 6--15....

Figure 6--6: BNC replacement 6--16...............................

Figure 6--7: Fuse replacement 6--18................................

Figure 6--8: Probe interface replacement 6--20.......................

Figure 6--9: Acquisition board replacement 6--22....................

Figure 6--10: Rear EMI gasket removal 6--23........................

Figure 6--11: Rear EMI gasket replacement 6--24....................

TLA Series Digitizing Oscilloscope Modules Service Manual

iii

Table of Contents

List of Tables

Figure 6--12: Primary troubleshooting procedure 6--30...............

Figure 6--13: Probe power voltage check 6--31.......................

Figure 6--14: Power supply troubleshooting procedure 6--31...........

Figure 6--15: Fuse locations for troubleshooting 6--32.................

Figure 6--16: Probe interface resistance 6--33........................

Figure 9--1: Interconnections 9--1................................

Figure 9--2: Block diagram 9--2..................................

Figure 10--1: Digitizing oscilloscope exploded view 10--8..............

Table i: Tektronix Logic Analyzer Family Documentation xi.......

Table 1--1: Comparison of product features 1--1....................

Table 1--2: Signal acquisition system 1--2.........................

Table 1--3: Timebase system 1--5.................................

Table 1--4: Trigger system 1--6..................................

Table 1--5: Front-Panel Connectors 1--7..........................

Table 1--6: Environmental 1--7..................................

Table 1--7: Certifications and compliances 1--8.....................

T able 1--8: Mechanical 1--8.....................................

Table 4--1: Test Equipment 4--3.................................

T able 4--2: DSO PV/Adjust software performance verification tests 4--8

Table 4--3: DSO module fault isolation 4--12........................

Table 5--1: DSO Adjustments and dependencies 5--3................

Table 5--2: Fault isolation 5--5...................................

T able 6--1: External inspection check list 6--4......................

T able 6--2: Internal inspection check list 6--5......................

T able 6--3: Tools required for parts replacement 6--8................

Table 6--4: Failure symptoms and possible causes 6--26...............

Table 6--5: Power supply fault-location table 6--32...................

Table 6--6: Diagnostic tests 6--33..................................

T able 10--1: Standard accessories 10--1............................

TLA Series Digitizing Oscilloscope Modules 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.

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.

ToAvoidFireor

Personal Injury

Use Proper Power Cord. Use only the power cord specified for this product and certified for the country of use.

Connect and Disconnect Properly. Do not connect or disconnect probes or test leads while they are connected to a voltage source.

Ground the Product. This product is indirectly grounded through the grounding conductor of the mainframe 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 marking 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, that exceeds the maximum rating of that terminal.

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

Use Proper Fuse. Use only the fuse type and rating specified for this product.

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.

TLA Series Digitizing Oscilloscope Modules Service Manual

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

TLA Series Digitizing Oscilloscope Modules 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.

TLA Series Digitizing Oscilloscope Modules Service Manual

vii

Service Safety Summary

viii

TLA Series Digitizing Oscilloscope Modules Service Manual

Preface

Manual Structure

This is the service manual for the Tektronix Logic Analyzer Series Digitizing Oscilloscope Modules (TLA7D1, TLA7D2, TLA7E1, & TLA7E2). Read this preface to learn how this manual is structured, what conventions it uses, and where you can find other information related to servicing this product. Read the Introduction, which follows this preface, for safety and other important background information needed before using this manual for servicing this product.

The TLA Series Digitizing Oscilloscope Manual is divided into chapters, which are made up of related subordinate topics. These topics can be cross referenced as sections.

Be sure to read the introductions to all procedures. These introductions provide important information needed to do the service correctly, safely, and efficiently.

A brief description of each chapter follows:

H Specifications contains a product description of the DSO Module and tables

of the characteristics and descriptions that apply to it.

H Operating Information includes basic installation and operating instructions

at the level needed to safely operate and service the DSO Module. For complete installation and configuration procedures, refer to the Tektronix Logic Analyzer Family User Manual.

H Theory of Operation contains circuit descriptions that support general service

to the circuit board level.

H Performance Verification contains the performance verification procedures

for the DSO Module.

H Adjustment Procedures contains the adjustment procedures for the DSO

Module.

H Maintenance contains information and procedures for doing preventive and

corrective maintenance on the DSO Module. Included are instructions for cleaning, for removal and installation of replaceable parts, and for troubleshooting.

H Options contains information on the factory-installed options that may be

available for the DSO Module.

TLA Series Digitizing Oscilloscope Modules Service Manual

Preface

Manual Conventions

H Diagrams contains a block diagram and an interconnection diagram useful

for isolating failed circuit boards or assemblies.

H Mechanical Parts List includes a table of all replaceable parts, their

descriptions, and their Tektronix part numbers.

This manual uses certain conventions that you should become familiar with before attempting service.

Modules

Replaceable Parts

Safety

Related Manuals

Throughout this manual, the term module refers to a TLA 700 Series Logic Analyzer or DSO unit that mounts inside a TLA 700 Series Portable or Benchtop Chassis. A module is composed of circuit cards, interconnecting cables, and a user-accessible front panel.

This manual refers to any field-replaceable assembly or mechanical part specifically by its name or generically as a replaceable part. In general, a (field) replaceable part is any circuit board or assembly that is listed in the replaceable parts list.

Symbols and terms related to safety appear in the Service Safety Summary found at the beginning of this manual.

The following manuals are available as part of the Tektronix Logic Analyzer Family documentation set. The procedures in this manual assume that the service personnel have access to all manuals listed in the following table. Other manuals may exist outside of the table as the product line offerings change. Contact your local Tektronix Service Representative for the latest part numbers of the service documentation. You can also obtain part numbers from the online help for the instrument.

TLA Series Digitizing Oscilloscope Modules Service Manual

Table i: Tektronix Logic Analyzer Family Documentation

Manual name Description Service use

Preface

The Tektronix Logic Analyzer Family User Manual

The TLA715 Portable Mainframe Service Manual.

The TLA721 Benchtop Mainframe & TLA7XM Expansion Mainframe Service Manual.

The TLA7Dx/TLA7EX Digitizing Oscilloscope Module Service Manual.

The TLA7PG2 Pattern Generator Module Service Manual.

The TLA600 Logic Analyzer Service Manual.

Provides basic operation and installation information for the Tektronix Logic Analyzer Family.

Provides service information for the TLA715 Portable Mainframe.

Provides service information for the TLA721 Benchtop Mainframe and the TLA7XM Expansion Mainframes.

Provides service information for the DSO modules.

Provides service information for the pattern generator modules.

Provides service information for the TLA600 Series Logic Analyzers.

Installation and removal of LA, DSO, and pattern generator modules as well as the mainframes.

Reinstallation of the system and application software.

Isolating and correcting failures in the portable mainframe and expansion mainframes.

Isolating and correcting failures in the mainframes.

Isolating and correcting failures in the DSO module.

Performing periodic or after-repair functional or performance verifications, calibrations, and certifications for the DSO modules.

Performing periodic or after-repair adjustments for the DSO modules.

Isolating and correcting failures in the pattern generator module.

Performing periodic or after-repair functional or performance verifications, calibrations, and certifications for the pattern generator modules.

Isolating and correcting failures in the TLA600 Logic Analyzer.

TLA Series Digitizing Oscilloscope Modules Service Manual

Performing periodic or after-repair functional or performance verifications, calibrations, and certifications for the TLA600 Logic Analyzer.

Performing periodic or after-repair adjustments for the TLA600 Logic Analyzer.

Preface

xii

TLA Series Digitizing Oscilloscope Modules Service Manual

Introduction

This manual contains information needed to properly service the DSO Module, as well as general information critical to safe and effective servicing.

To prevent personal injury or damage to the digitizing oscilloscope module, consider the following requirements before attempting service:

H The procedures in this manual should be performed only by a qualified

service person.

H Read the General Safety Summary and Service Safety Summary found at the

beginning of this manual.

When using this manual for servicing, be sure to follow all warnings, cautions, and notes.

Adjustment and Certification Interval

Generally, you should perform the adjustments and certification (calibration) once per year, or following repairs that affect adjustment or calibration.

Strategy for Servicing

This manual supports and contains information needed for periodic maintenance of the DSO Module. (Examples of such information are procedures for fault isolation of a failed circuit board or assembly and for removal and replacement of same.)

This manual also supports and contains information for corrective maintenance of this product:

H Supports isolation of faults to the failed circuit board or assembly level

shown in the replaceable parts list

H Supports removal and replacement of those boards or assemblies

H Supports removal and replacement of fuses, chassis, and other mechanical

parts listed in the replaceable parts list

This manual does not support component-level fault isolation and replacement.

TLA Series Digitizing Oscilloscope Modules Service Manual

xiii

Introduction

Service Offerings

Tektronix provides service to cover repair under warranty as well as other services that are designed to meet your specific service needs.

Whether providing warranty repair service or any of the other services listed below, Tektronix service technicians are well equipped to service the DSO Module. Tektronix technicians train on Tektronix products; they have access to the latest information on improvements to the DSO Module as well as the latest new product upgrades. Services are provided at Tektr onix Services Centers and

on-site at your facility, depending on your location.

Warranty Repair Service

Calibration and Repair

Service

Tektronix warrants this product for one year from date of purchase. (The warranty appears behind the title page in this manual.) Tektronix technicians provide warranty service at most Tektronix service locations worldwide. The Tektronix product catalog lists all service locations worldwide or you can visit us on our Customer Services World Center web site at http://www.tek.com/Mea- surement/Service. See our latest service offerings and contact us by email.

In addition to warranty repair, Tektronix Service offers calibration and other services which provide cost-effective solutions to your service needs and qualitystandards compliance requirements. Our instruments are supported worldwide by the leading-edge design, manufacturing, and service resources of Tektronix to provide the best possible service.

The following services can be tailored to fit your requirements for calibration and/or repair of the DSO Module.

Service Agreements. If service options are not added to the instrument purchase, then service agreements are available on an annual basis to provide calibration services or post-warranty repair coverage for the DSO Module. Service agreements may be customized to meet special turn-around time and/or on-site requirements.

xiv

Service on Demand. Tektronix also offers calibration and repair services on a

“per-incident” basis that is available with standard prices for many products.

Self Service. Tektronix supports repair to the replaceable-part level by providing for circuit board exchange.

Use this service to reduce down-time for repair by exchanging circuit boards for remanufactured ones. Tektronix ships updated and tested exchange boards. Each board comes with a 90-day service warranty.

TLA Series Digitizing Oscilloscope Modules Service Manual

Contacting Tektronix

Introduction

For More Information. Contact your local Tektronix service center or sales engineer for more information on any of the Calibration and Repair Services just described.

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* 1-503-627-2400

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.

TLA Series Digitizing Oscilloscope Modules Service Manual

Introduction

xvi

TLA Series Digitizing Oscilloscope Modules Service Manual

Specifications

Product Description

This chapter provides a general description of the DSO module and a list of specifications under Characteristics Tables.

The digitizing oscilloscope (DSO) modules are designed for use with either the benchtop mainframe or portable mainframe. Key features are listed below:

H Four standard configurations with full-featured, 1 MΩ/50 Ω inputs:

TLA7D2 and TLA7E2 have four channels, TLA7D1 and TLA7E1 have two channels.

H A maximum realtime digitizing rate up to 5 GSample/second with an analog

bandwidth up to 1 GHz. See Table 1--1 for details.

Table 1- 1: Comparison of product features

Product Input channels Maximum sample rate Analog bandwidth

TLA7E2 4 5 GSample/second 1GHz

TLA7D2 4 2.5 GSample/s econd 500 MHz

TLA7E1 2 5 GSample/second 1GHz

TLA7D1 2 2.5 GSample/s econd 500 MHz

H A maximum record length of 15,000 samples with 8-bit vertical resolution

H A full complement of internal triggering modes such as edge, pulse, logic,

and setup hold

TLA Series Digitizing Oscilloscope Modules Service Manual

1- 1

Specifications

Characteristics Tables

This section lists the specifications for the DSO module. All specifications are guaranteed unless noted “typical.” Specifications that are marked with the n symbol are checked in the Performance Verification chapter of this manual.

The performance limits in this specification are valid with these conditions:

H The DSO module must have successfully passed self calibration at an

H The DSO module must be in an environment with temperature, altitude,

Table 1- 2: Signal acquisition system

ambient temperature between +20

_ C and +30_ C and after a warm-up period

of 30 or more minutes at these conditions.

humidity, and vibration within the operating limits described in these specifications. This includes the warm-up period of 30 or more minutes at these conditions.

Characteristic Description

n Accuracy, DC Gain ±1.5% for full scale ranges from 20 mV to 100 V

±2.0% for full scale ranges <19.9 mV

n Accuracy, Internal Offset

n Analog Bandwidth, DC--50 Ω Coupled Full Scale Range Setting Bandwidth

Full Scale Range Setting Offset Accuracy

10 mV -- 1 V

1.01 V -- 10 V

10.1 V -- 100 V

10.1 V -- 100 V DC -- 500 MHz (TLA7E1 and TLA7E2)

100 mV -- 10 V DC -- 1 GHz (TLA7E1 and TLA7E2)

50 mV -- 99.5 mV DC -- 750 MHz (TLA7E1 and TLA7E2)

20 mV -- 49.8 mV DC -- 600 MHz (TLA7E1 and TLA7E2)

10 mV -- 19.9 mV DC -- 500 MHz (TLA7E1 and TLA7E2)

±[(0.2% × | offset |) + 1.5 mV + (6% × full scale range)]

±[(0.25% × | offset |) + 15 mV + (6% × full scale range)]

±[(0.25% × | offset |) + 150 mV + (6% × full scale range)]

DC -- 500 MHz (TLA7D1 and TLA7D2)

Net offset is the nominal voltage level at the DSO module input that corresponds to the center of the A/D Converter dynamic range. Offset accuracy is the accuracy of this voltage level.

The limits given are for the ambient temperature range of 0_ Cto+30_ C. Reduce the upper bandwidth frequencies by 5 MHz for each _C above +30_ C. The bandwidth must be set to FULL.

1- 2

TLA Series Digitizing Oscilloscope Modules Service Manual

Table 1- 2: Signal acquisition system (Cont.)

Typicalfull-bandwidthrisetimesareshowninthe

Characteristic Description

Bandwidth, Analog, Selections 20 MHz, 250 MHz, and FULL on each channel

Calculated Rise Time, typical

chart to the right

Full Scale Range Setting TLA7E1 and TLA7E2

10.1 V -- 100 V

900 ps

Specifications

TLA7D1 and TLA7D2

900 ps

100 mV -- 10 V

50 mV -- 99.5 mV

20 mV -- 49.8 mV

10 mV -- 19.9 mV

450 ps

600 ps

750 ps

900 ps

Crosstalk (Channel Isolation) ≥300:1 at 100 MHz and ≥100:1 at the rated bandwidth for the channel’s sensitivity

(Full Scale Range) setting, for any two channels having equal sensitivity sett ings

n Delay Between Channels, Full Bandwidth ≤100 ps with equal full scale Range and Coupling settings

Digitized Bits, Number of 8bits

Effective Bits, Realtime Sampling, typical Input Frequency TLA7E1 and

TLA7E2 5 GS/s

TLA7D1 and TLA7D2 2.5 GS/s (each Channel)

(each Channel)

10.2 MHz 6.2 bits 6.2 bits

98 MHz 6.1 bits 6.1 bits

245 MHz 6.0 bits 6.0 bits

490 MHz 5.7 bits 5.7 bits

990 MHz 5.2 bits N/A

Frequency Limit, Upper, 20 MHz Bandwidth

20 MHz

Limited, typical

Frequency Limit, Upper, 250 MHz Bandwidth

250 MHz

Limited, typical

Input Channels, Number of Product Channels

TLA7E2 Four

TLA7D2 Four

TLA7E1 Two

TLA7D1 Two

Input Coupling DC, AC, or GND

Rise time (rounded to the nearest 50 ps) is calculated from the bandwidth when Full Bandwidth is selected. It is defined

by the following formula:

Rise Time (ns) = 450  BW (MHz)

GND input coupling disconnects the input connector from the attenuator and connects a ground reference to the input of the attenuator.

TLA Series Digitizing Oscilloscope Modules Service Manual

1- 3

Specifications

ala

valueattheendofaspecifiedtimeintervalafte

Table 1- 2: Signal acquisition system (Cont.)

Characteristic Description

Input Impedance, DC--1 MΩ Coupled 1MΩ ±0.5% in parallel with 10 pF ±3pF

Input Impedance Selections

Input Resistance, DC--50 Ω Coupled

1MΩ or 50 Ω

50 Ω ±1%

Input VSWR, DC--50 Ω Coupled ≤1.3:1 from DC -- 500 MHz, ≤1.5:1 from 500 MHz -- 1 GHz

Input Voltage, Maximum, DC--1 MΩ,AC--1MΩ, or GND Coupled

Input Voltage, Maximum, DC--50 Ω or AC--50 Ω

300 V

but no greater than ±420 V peak, Installation category II, derated at

RMS

20 dB/decade above 1 MHz

, with peaks ≤ ±25 V

RMS

Coupled

Lower Frequency Limit, AC Coupled, typical ≤10 Hz when AC--1 MΩ Coupled; ≤200 kHz when AC--50 Ω Coupled

n Random Noise Bandwidth Selection RMS Noise

Full ≤(350 V + 0.5% of the full scale Setti ng)

250 MHz ≤(165 V + 0.5% of the full scale Setting)

20 MHz ≤(75 V + 0.5% of the full scale Setting)

Range, Internal Offset Full Scale Range Setting Offset Range

Range, Sensitivity (Full Scale Range),

10 mV -- 1 V

1.01 V -- 10 V

10.1 V -- 100 V

10 mV to 100 V

±1V

±10 V

±100 V

All Channels

Step Response Settling Errors, typical

The maximum absolute difference between the

lueat the end ofaspecified time inter

the mid-level crossing of the step, and the value

Maximum Settling Full Scale Range Setting

fter

10 mV -- 1 V

± Step Response

≤2V

Error (%) at

20 ns 100 ns 20 ms

0.5% 0.2% 0.1%

one second after the mid-level crossing of the step, expressed as a percentage of the step amplitude. See IEEE std. 1057, Section 4.8.1, Settling Time Parameters.

1.01 V -- 10 V

10.1 V -- 100 V

≤20 V

≤200 V

1.0% 0.5% 0.2%

The AC Coupled Lower Frequency Limits are reduced by a factor of 10 when 10X passive probes are used.

The sensitivity ranges from 10 mV to 100 V full scale in a 1- 2- 5 sequence of coarse settings. Between coarse settings, you can adjust the sensitivity with a resolution equal to 1% of the more sensitive coarse setting. For example, between the 500 mV and 1 V ranges, the sensitivity can be set with 5 mV resolution.

The Full Bandwidth settling errors are typically less than the percentages from the table.

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TLA Series Digitizing Oscilloscope Modules Service Manual

Table 1- 3: Timebase system

Characteristic Description

Range, Extended Realtime Sampling Rate 5 S/s to 10 MS/s in a 1--2.5--5 sequence

Range, Realtime Sampling Rate Products Limits

Specifications

TLA7E1 and TLA7E2

TLA7D1 and TLA7D2

Record Length 512, 1024, 2048, 4096, 8192, and 15000

n Long Term Sample Rate Accuracy ±100 ppm over any interval ≥ 1ms

25 MS/s to 5 GS/s on all channels simultaneously in a 1--2.5--5 sequence

25 MS/s to 2.5 GS/s on all channels simultaneously in a 1--2.5--5 sequence

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Specifications

Table 1- 4: Trigger system

Characteristic Description

n Accuracy (Time) for Pulse Glitch or

PulseWidth Triggering

Time Range Accuracy

2 ns to 500 ns

±(20% of Setting + 0.5 ns)

520 ns to 1 s

n Accuracy (DC) for Edge Trigger Level, DC

Coupled

Range (Time) for Pulse Glitch and Pulse Width Triggering

Range, Trigger Level Source Range

Range, Trigger Point Position Minimum: 0%

Resolution, Trigger Level 0.2% of full scale for any Channel source

Resolution, Trigger Position One Sample Interval at any Sample Rate

Sensitivities, Pulse-Type Runt Trigger, typical 10% of full scale, from DC to 500 MHz, for vertical settings >100 mV full scale and

Sensitivities, Pulse-Type Trigger Width and Glitch, typical

n Sensitivity, Edge-Type Trigger, DC Coupled The minimum signal levels required for stable edge triggering of an acquisition when

±((2%× | Setting) | ) + 0.03 of Full Scale Range + Offset Accuracy) for signals having rise and fall times ≥20 ns

2nsto1s

Any Channel ±100% of full scale range

Maximum: 100%

≤10 V full scale at the BNC input

10% of full scale for vertical settings >100 mV full scale and ≤10 V full scale at the BNC input

the trigger source is DC-coupled.

Products Trigger Source Sensitivity

TLA7E1 and TLA7E2 Any Channel 3.5% of Full Scale Range

±(104.5 ns + 0.01% of Setting)

from DC to 50 MHz, increasing to 10% of Full Scale Range at 1 GHz

TLA7D1 and TLA7D2 Any Channel 3.5% of Full Scale Range

from DC to 50 MHz, increasing to 10% of Full Scale Range at 500 MHz

Sensitivity, Edge-Type Trigger, Not DC Coupled, typi

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Trigger Coupling Typical Signal Level for Stable Triggering

High Frequency Reject One and one-half times the DC-coupled

Low Frequency Reject One and one-half times the DC-coupled

Noise Reject Three times the DC-coupled limits

Same as the DC-coupled limits for frequencies above 60 Hz; attenuates signals below 60 Hz

limits from DC to 30 kHz; attenuates signals above 30 kHz

limits for frequencies above 80 kHz; attenuates signals below 80 kHz

TLA Series Digitizing Oscilloscope Modules Service Manual

Table 1- 4: Trigger system (Cont.)

pic

typical

Characteristic Description

Time, Minimum Pulse or Rearm, and Minimum Transition Time, for Pulse-Type Triggering, t

Trigger Position Error, Edge Triggering, typical Acquisition Mode Trigger Position Error

For vertical settings >100 mV and ≤10 V at the BNC input

Pulse Class Minimum Pulse Width Minimum Rearm Width

Glitch 1ns 2 ns + 5% of Glitch Width

Setting

Width 1ns 2 ns + 5% of Width Upper

Limit Setting

Sample ±(1 Sample Interval+ 1 ns)

Table 1- 5: Front-Panel Connectors

Characteristic Description

n Probe Compensator, Output Voltage

The Probe Compensator output voltage in peak-to-peak Volts

0.5 V (base--top) ± 1% into a ≥ 50 Ω load

Specifications

Table 1- 6: Environmental

Characteristic Description

Altitude, Operating and Nonoperating Operating: to 15,000 feet (4570 m) provided maximum ambient temperature is

derated by 1_ C/1000 ft. above 1000 ft.

Nonoperating: to 40,000 feet (12,190 m)

Humidity, Operating and Nonoperating To 95% relative humidity at or below +30_ C; to 45% relative humidity up to +50_ C

Temperature, Operating and Nonoperating Operating: 0_ Cto+50_ C ambient air, when operated in a mainframe that provides

at least 14 CFM of air flow resulting in no more than 12_ C temperature rise of the air passing through this instrument.

Nonoperating: --40_ Cto+71_ C

The trigger position errors are typically less than the values given here. These values are for triggering signals having a slew rate at the trigger point of ≥5% of full scale/ns.

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Specifications

Measurement,Control,andLaboratoryUs

Table 1- 7: Certifications and compliances

Characteristic Description

Certifications CAN/CSA-C22.2 No.1010.1 -- Safety Requirements for Electrical Equipment for

UL3111-1 Standard for Electrical Measuring and Test Equipment.

EC Declaration of Conformity EC Council Directive 89/336/EEC:

Emissions shall be within the limits specified by the following requirements: Enclosure: EN55011 Class A limits for radiated emissions.

AC Mains: EN 60555 -- 2 for power line harmonics. EN 55011 Class A limits for conducted emissions.

FCC Compliance Complies with the requirements of FCC CFR 47, Part 15, Subpart B, Class A for

radiated and conducted emissions.

Pollution Degree Pollutions Degree 2 (as defined in IEC 1010--1) -- indoor use only

Table 1- 8: Mechanical

Characteristic Description

Construction Material Chassis parts constructed of aluminum alloy; front panel constructed of plastic

laminate; circuit boards constructed of glass laminate. Cabinet is aluminum.

Weight Products Weight

TLA7D1 and TLA7E1 2.44 kg (5.38 lbs)

TLA7D2 and TLA7E2 2.55 kg (5.63 lbs)

Weight, shipping Products Weight

TLA7D1 and TLA7E1 6.35 kg (14 lbs)

TLA7D2 and TLA7E2 7.71 kg (17 lbs)

Overall Dimensions Height: 262.05 mm (10.32 in)

Width: 60.66 mm (2.39 in)

Depth: 373.38 mm (14.70 in)

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TLA Series Digitizing Oscilloscope Modules Service Manual

Operating Information

This chapter describes how to operate the DSO module when performing maintenance. The operating information is limited to the functions you need to perform the procedures found in this manual. You can find more detailed operating instructions in the Tektronix Logic Analyzer Family User Manual and in the online help.

The following sections are included in this chapter:

H The Installation section describes how to install the DSO module in the

mainframe.

H The Software Installation and Removal section describe how to install and

remove the performance verification and adjustment software. You need this software to complete the performance verification procedures and adjustment procedures as described in the Performance Verification and Adjustment Procedures chapters of this manual.

H Operating Information describes front-panel connectors and indicators, the

power-on procedure, self cal, self tests, and instrument commands used for maintenance.

Installation

Setting the Logical

Address

Basic installation instructions are contained in the Tektronix Logic Analyzer Family User Manual; refer to that manual for detailed information not covered in

this manual. This section describes how the following tasks:

H Set the logical address

H Install the DSO module in a mainframe

H Remove the DSO module from a mainframe

Every module installed within a mainframe must have a unique logical address; no two modules can have the same address. Two rotary switches on the rear panel of the DSO module select the logical address. Refer to Figure 2--1 for the switch location.

The factory default recommended switch setting (FF) allows the controller to assign a logical address to the digitizing oscilloscope module. This is called Dynamic Auto Configuration. Y ou can also select static addresses between 01 and FE hexadecimal (1 to 254 decimal). Read the following descriptions before setting the logical address.

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Operating Information

NOTE. Do not set the digitizing oscilloscope logical address to 00. Logical address 00 is reserved for the controller.

Least-significant

digit

Most-significant

digit

Figure 2- 1: Logical address switches

Dynamic Auto Configuration. With Dynamic Auto Configuration selected

(hexadecimal FF or decimal 255), the system automatically sets the address to an unused value. For example, if there are devices set to addresses 01 and 02 already in your system, the resource manager will automatically assign the DSO module an address other than 01 or 02.

Static Logical Address. Static logical address selections set the address to a fixed value. If you use static logical addressing, each device within your system must have a unique address to avoid communication problems.

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TLA Series Digitizing Oscilloscope Modules Service Manual

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