Tektronix TDS7154B, TDS7254B, TDS7404B, CSA7000B, CSA7404B Service Manual

...

Service Manual

CSA7000B Series Communication Signal Analyzers & TDS7000B Series Digital Phosphor Oscilloscopes (CSA7404B, TDS7704B, TDS7404B, TDS7254B, & TDS7154B)

071-1227-04

Revision A

This document applies to firmware version 3.0.0 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

Copyright © Tektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and int ernational treaty provisions.

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

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc. 14200 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA

For product information, sales, service, and technical support:

H In North America, call 1-800-833-9200. H Worldwide, visit www.tektronix.com to find contacts in your area.

Warranty 2

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such 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. Custom er 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 PAR TICULAR 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 xi...................................

Service Safety Summary xiii....................................

Environmental Considerations xv...............................

Preface xvii...................................................

Manual Structure xvii................................................

Manual Conventions xvii..............................................

Related Documentation xviii...........................................

Product and Feature Description 1--2....................................

Acquisition Features 1--2..........................................

Signal Processing Features 1--3.....................................

Display Features 1--3.............................................

Measurement Features 1--3.........................................

Trigger Features 1--4..............................................

Convenience Features 1--4.........................................

Specification Tables 1--5..............................................

Certifications and Compliances 1--28.....................................

Operating Information 2--1.....................................

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

Before You Start 2--1.............................................

Environmental Considerations 2--1..................................

Connect the Peripherals 2--1........................................

Power On the Instrument 2--4.......................................

Powering Off the Instrument 2--5....................................

Software Installation 2--5..........................................

Operating Information 2--7............................................

Back Up User Files 2--7...........................................

User Interface Map 2--7...........................................

Front Panel Controls Map 2--9......................................

Front Panel I/O Map 2--10..........................................

Instrument Diagnostics 2--11........................................

Signal Path Compensation 2--11.....................................

Using the Online Help 2--11.........................................

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table of Contents

Theory of Operation

Theory of Operation 3--1.......................................

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

Module Overviews 3--1...............................................

Performance Verification

Performance Verification 4--1...................................

Conventions 4--2....................................................

Brief Procedures 4--5...........................................

Self Tests 4--5.......................................................

Functional Tests 4--6.................................................

Performance Tests 4--17.........................................

Prerequisites 4--17....................................................

Equipment Required 4--18..............................................

CSA7000B & TDS7000B Test Record 4--21...............................

Signal Acquisition System Checks 4--45...................................

Time Base System Checks 4--92.........................................

Trigger System Checks 4--98............................................

Output Signal Checks 4--106.............................................

Serial Trigger Checks (TDS7000B Series Option ST and CSA7000B Series

Optical-to-Electrical Converter Checks (CSA7000B Series Only) 4--125..........

Input Signal Path 3--1.............................................

Display Panel 3--2................................................

Front Panel 3--2..................................................

Rear Panel 3--3..................................................

Low Voltage Power Supply 3--3.....................................

Fans 3--3.......................................................

Verify Internal Adjustment, Self Compensation, and Diagnostics 4--5.......

Verify All Input Channels 4--7......................................

Verify the Time Base 4 --10..........................................

Verify the A (Main) and B (Delayed) Trigger Systems 4--12...............

Verify the File System 4--14.........................................

Check DC Voltage Measurement Accuracy 4--45........................

Check DC Gain Accuracy 4--49......................................

Check Offset Accuracy 4--68........................................

Check Maximum Input Voltage 4--73.................................

Check Analog Bandwidth 4--77......................................

Check Delay Between Channels 4--82.................................

Check Channel Isolation (Crosstalk) 4--86.............................

Check Input Impedance 4--90.......................................

Check Long-Term Sample Rate and Delay Time Accuracy and Reference 4--92

Check Delta Time Measurement Accuracy 4--95........................

Check Time Accuracy for Pulse, Glitch, Timeout, and Width Triggering 4--99.

Check Sensitivity, Edge Trigger, DC Coupled 4--101......................

Check Outputs — CH 3 Signal Out and Aux Trigger Out 4--107.............

Check Probe Compensation Output 4--110..............................

Only) 4--114......................................................

Check Serial Trigger Baud Rate Limits and Word Recognizer Position

Accuracy 4--114............................................

Check Serial Trigger Clock Recovery Range 4--121.......................

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Adjustment Procedure

Maintenance

Table of Contents

Check Dark Level Calibration 4--125..................................

Check Maximum Optical-to-Electrical Noise 4--127......................

Check Optical-to-Electrical Gain 4--129................................

Check Optical-to-Electrical System Bandwidth 4--131.....................

Sine Wave Generator Leveling Procedure 4--137.............................

Adjustment Procedures 5--1.....................................

Adjustment Interval 5--1..............................................

Adjustment After Repair 5--1..........................................

Adjustment 5--1.....................................................

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

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

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

General Care 6--2................................................

Cleaning Optical Connectors 6--2...................................

Interior Cleaning 6--3.............................................

Exterior Cleaning 6--4............................................

Flat Panel Display Cleaning 6--4....................................

Removal and Installation Procedures 6--9.........................

Preparation 6--9.....................................................

Procedures for External Modules 6--11....................................

Procedures for Modules 6--23...........................................

Troubleshooting 6--65...........................................

Service Level 6--65...................................................

Check for Common Problems 6--65......................................

Equipment Required 6--67..............................................

Fault Isolation Procedure 6--67..........................................

PPC and MicroATX PC Diagnostics 6--72.................................

Software Updates 6--75................................................

After Repair 6--75....................................................

BIOS Error Messages 6--76.............................................

BIOS Beep Codes 6--81................................................

Dip Switch Controls 6--82..............................................

Diagnostic LED 6--83.................................................

Troubleshooting Using Reset Circuits 6--84................................

Update/Restore the MicroATX Board CMOS 6--86..........................

Installing an Authorization Key 6--87.....................................

Hard Disk Drive Maintenance 6--87......................................

Repackaging Instructions 6--89...................................

Packaging 6--89......................................................

Shipping to the Service Center 6--89......................................

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

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Table of Contents

Options

Electrical Parts List

Diagrams

Mechanical Parts List

Options 7--1........................................................

Accessories 7--3.....................................................

Electrical Parts List 8--1........................................

Symbols 9--1.......................................................

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

Module Servicing 10--1............................................

Using the Replaceable Parts List 10--2....................................

Abbreviations 10--2...............................................

Mfr. Code to Manufacturer Cross Index 10--2...........................

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

List of Figures

Table of Contents

Figure 2--1: Locations of peripheral connectors on rear panel 2--3.....

Figure 2--2: Line fuse and power cord connector locations,

rear panel 2-- 4.............................................

Figure 2 --3: On/Standby switch location 2--5.......................

Figure 4 --1: Toolbar and menu bar 4-- 3...........................

Figure 4--2: Universal test hookup for functional

tests -- CH 1 shown 4--8.....................................

Figure 4 --3: Channel button location 4-- 9..........................

Figure 4--4: Setup for time base test 4--11...........................

Figure 4--5: Setup for trigger test 4--13.............................

Figure 4--6: Setup for the file system test 4--14.......................

Figure 4--7: Initial test hookup 4--46...............................

Figure 4--8: Measurement of DC accuracy at maximum

offset and position 4--48......................................

Figure 4--9: Initial test hookup 4--50...............................

Figure 4--10: Measurement of DC gain accuracy 4--67................

Figure 4--11: Initial test hookup 4--69..............................

Figure 4--12: Measurement of offset accuracy 4--72...................

Figure 4--13: Initial test hookup 4--74..............................

Figure 4 --14: Check of maximum input voltage 4-- 76.................

Figure 4--15: Initial test hookup 4--78..............................

Figure 4--16: Measurement of analog bandwidth 4--80................

Figure 4--17: Initial test hookup 4--83..............................

Figure 4--18: Measurement of channel delay 4--84...................

Figure 4--19: Initial test hookup 4--86..............................

Figure 4--20: Initial test hookup 4--91..............................

Figure 4--21: Initial test hookup 4--92..............................

Figure 4--22: Initial test hookup 4--93..............................

Figure 4--23: Final test hookup 4--94...............................

Figure 4--24: Delta time accuracy test hookup 4--96..................

Figure 4--25: Initial test hookup 4--99..............................

Figure 4--26: Measurement of time accuracy for pulse

and glitch triggering 4--100....................................

Figure 4--27: Initial test hookup 4--102..............................

Figure 4--28: Measurement of trigger sensitivity -- 50 MHz

results shown 4--103..........................................

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table of Contents

Figure 4--29: Initial test hookup 4--107..............................

Figure 4--30: Measurement of trigger ou t limits 4--109.................

Figure 4--31: Initial test hookup 4--110..............................

Figure 4--32: Measurement of probe compensator frequency 4--111......

Figure 4 --33: Subsequent test hookup 4-- 112.........................

Figure 4--34: Measurement of probe compensator amplitude 4--113......

Figure 4--35: Initial test hookup 4--114..............................

Figure 4--36: Isolated 0 triggering 4--116............................

Figure 4--37: Isolated 1 triggering 4--118............................

Figure 4--38: N modulo 3 triggering 4--120...........................

Figure 4--39: Initial test hookup 4--121..............................

Figure 4--40: Clock recovery 4--124.................................

Figure 4--41: Initial test hookup 4--125..............................

Figure 4--42: Initial test hookup 4--127..............................

Figure 4--43: Initial test hookup 4--129..............................

Figure 4--44: Optical bandwidth hookup 4--134......................

Figure 4--45: Proper positioning of the impulse 4--135.................

Figure 4--46: Optical impulse response 4--136........................

Figure 4--47: Equipment setup for maximum amplitude 4--138.........

Figure 6--1: Line fuse and line cord removal 6--12...................

Figure 6--2: Knob removal 6--13..................................

Figure 6--3: Trim removal 6--15...................................

Figure 6--4: Bottom cover removal 6--16............................

Figure 6--5: Cover removal 6--18..................................

Figure 6--6: Cover removal 6--19..................................

Figure 6--7: External modules 6--20................................

Figure 6 --8: Internal modules 6-- 21................................

Figure 6--9: Front-panel assembly removal 6--24.....................

Figure 6--10: J1 flex cable connector removal 6--25...................

Figure 6--11: Front panel board and keyboard removal 6--26..........

Figure 6--12: Display removal 6--28................................

Figure 6--13: Touch panel and L CD assembly removal 6--29...........

Figure 6--14: Display adaptor board removal 6--30...................

Figure 6--15: Power flex circuit removal 6--31.......................

Figure 6--16: Floppy disk drive assembly removal 6--32...............

Figure 6--17: Floppy disk drive removal 6--33.......................

Figure 6--18: Hard disk drive removal 6--34.........................

Figure 6--19: Separating the halves of the drive cartridge 6--34.........

Figure 6--20: Hard disk drive removal from cartridge 6--35............

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table of Contents

Figure 6--21: CD drive assembly removal 6--36......................

Figure 6--22: CD drive and bracket removal 6--37....................

Figure 6--23: Front and rear power distribution and

PA bus boards removal 6--39..................................

Figure 6 --24: Low-voltage power supply removal 6--40................

Figure 6--25: Micro ATX battery removal 6--41......................

Figure 6--26: Drive frame and ATX assembly removal 6--43...........

Figure 6--27: ATX assembly troubleshooting position 6--44............

Figure 6--28: Cables 6--45........................................

Figure 6--29: Micro ATX assembly removal 6--45....................

Figure 6--30: Cables 6--46........................................

Figure 6--31: Micro ATX board removal 6--47.......................

Figure 6--32: Microprocessor removal 6--49.........................

Figure 6--33: Fan assembly removal 6--51...........................

Figure 6--34: Processor board cables 6--53..........................

Figure 6--35: PPC Processor board removal 6--54....................

Figure 6--36: Bridge board removal 6--55...........................

Figure 6--37: Acquisition circuit board removal 6--57.................

Figure 6--38: Front panel combination assembly removal 6--58.........

Figure 6 --39: TekConnect board and TekConnect

bucket removal 6--59........................................

Figure 6--40: Acquisition circuit board removal 6--62.................

Figure 6--41: Front panel combination assembly removal 6--63.........

Figure 6 --42: TekConnect board and TekConnect

bucket removal 6--64........................................

Figure 6--43: Primary troubleshooting tree 6--68.....................

Figure 6--44: Location of power-on and over current LEDs 6--69.......

Figure 6--45: Connectors J1 and J2 6--70...........................

Figure 6--46: The three PCI busses 6--84...........................

Figure 6--47: PCI and MicroATX video connectors 6--85..............

Figure 6--48: Location of jumpers and reset button 6--86..............

Figure 9--1: Instrument block diagram 9--2........................

Figure 10--1: External parts 10--7.................................

Figure 10--2: Front panel and drives 10--10..........................

Figure 10--3: Power supply 10--13..................................

Figure 10--4: Acquisition assembly, CSA7000B Series 10--15............

Figure 10--5: Acquisition assembly, TDS7000B Series 10--17............

Figure 10--6: Accessories 10--18....................................

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

vii

Table of Contents

List of Tables

Table 1--1: Instrument models 1-- 2...............................

Table 1--2: Channel input and vertical specifications 1-- 5............

T able 1--3: Horizontal and acquisition system specifications 1--11......

Table 1--4: Trigger specifications 1--15.............................

Table 1--5: Serial Trigger specifications (optional on

TDS7000B Series) 1--19......................................

Table 1--6: Display specifications 1--19.............................

Table 1--7: Input/output port specifications 1--20....................

Table 1--8: O/E converter (CSA7000B Series only) 1--23..............

Table 1--9: Data storage specifications 1--25........................

Table 1--10: Power source specifications 1--25.......................

T able 1--11: Mechanical specifications 1--26........................

Table 1--12: Environmental specifications 1--27.....................

Table 2--1: Additional accessory connection information 2--2.........

Table 2--2: Line fuses 2 --4......................................

Table 4--1: Vertical settings 4--9.................................

Table 4--2: Test equipment 4--18..................................

T able 4--3: DC Voltage measurement accuracy 4--47.................

T able 4--4: Gain accuracy 4--51...................................

T able 4--5: Offset accuracy 4--70..................................

Table 4--6: Maximum input voltage limit 4-- 75......................

Table 4--7: Analog bandwidth 4--79...............................

T able 4--8: Delay between channels worksheet 4--85.................

Table 4--9: Delta time measurement 4--98..........................

Table 4--10: Serial pattern data 4--115..............................

Table 4--11: Word recognizer data 4--117............................

Table 4--12: Clock recovery input frequencies and baud rates 4-- 123....

Table 4--13: Dark level 4--126.....................................

Table 4--14: Optical noise limits 4--128.............................

Table 4--15: O/E gain 4--130......................................

Table 4--16: O/E system bandwidth 4-- 135..........................

viii

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

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

Table 6--3: Tools required for module removal 6--10.................

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table of Contents

Table 6--4: Failure symptoms and possible causes 6--65...............

Table 6--5: Power supply voltages 6--70............................

Table 6--6: Power-on diagnostic tests 6--72.........................

Table 6--7: Action required for module replaced 6-- 76................

Table 6--8: BIOS Error messages 6--76............................

Table 6--9: POST codes 6--77.....................................

Table 6--10: Different bus routines upper-nibble

high-byte functions 6--81.....................................

T able 6--11: Beep codes 6--81.....................................

Table 6--12: DIP switch functions 6--82............................

Table 6--13: Diagnostic LED 6--83................................

Table 7--1: Options 7--1........................................

T able 7--2: Standard accessories 7--3.............................

Table 7--3: Optional accessories 7--4..............................

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table of Contents

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B 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 a larger system. Read the safety sections of the other component 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 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 inputs are not rated for connection to mains or Category II, III, or IV circuits.

Connect the probe reference lead to earth ground only.

Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.

Power Disconnect. The power switch disconnects the product from the power source. See instructions for the location. Do not block the power switch; it must remain accessible to the user at all times.

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

Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel.

Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.

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

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

General Safety Summary

Wear Eye Protection. Wear eye protection if exposure to high-intensity rays or laser radiation exists.

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.

Terms in this Manual

Symbols and Terms

on the Product

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.

These terms may appear on the product:

H DANGER indicates an injury hazard immediately accessible as you read the

marking.

H WARNING indicates an injury hazard not immediately accessible as you

read the marking.

H CAUTION indicates a hazard to property including the product.

The following symbols may appear on the product:

xii

CAUTION

Refer to Manual

Mains Disconnected

OFF (Power)

WARNING

High Voltage

Mains Connected

ON (Power)

Protective Ground

(Earth) Terminal

Standby

Earth Terminal

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B 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, switch off the instrument power, then disconnect the power cord from the mains power.

Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components.

To avoid electric shock, do not touch exposed connections.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

xiii

Service Safety Summary

xiv

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Environmental Considerations

This section provides information about the environmental impact of the product.

Product End-of-Life

Handling

Observe the following guidelines when recycling an instrument or component:

Equipment Recycling. Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if improperly handled at the product’s end of life. In order to avoid release of such substances into the environment and to reduce the use of natural resources, we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately.

The symbol shown to the left indicates that this product complies with the European Union’s requirements according to Directive 2002/96/EC on waste electrical and electronic equipment (WEEE). For information about recycling options, check the Support/Service section of the Tektronix Web site (www.tektronix.com).

Mercury Notification. This product uses an LCD backlight lamp that contains mercury. Disposal may be regulated due to environmental considerations. Please contact your local authorities or, within the United States, the Electronics Industries Alliance (www.eiae.org) for disposal or recycling information.

Restriction of Hazardous

Substances

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

This product has been classified as Monitoring and Control equipment, and is outside the scope of the 2002/95/EC RoHS Directive. This product is known to contain lead, cadmium, mercury, and hexavalent chromium.

Environmental Considerations

xvi

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Preface

Manual Structure

Manual Conventions

This is the service manual for the CSA7000B Communications Signal Analyzer products and the TDS7000B Digital Oscilloscope products. 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 following this preface for safety and other important background information needed before using this manual for servicing this product.

This 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.

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

Modules

Replaceable Parts

Safety

Throughout this manual, any replaceable component, assembly, or part is referred to by the term module. A module is composed of electrical and mechanical assemblies, circuit cards, interconnecting cables, and user-accessible controls.

This manual refers to any field-replaceable assembly or mechanical part specifically by its name or generically as a replaceable part. In general, a replaceable part is any circuit board or assembly, such as the hard disk drive, or a mechanical part, such as the I/O port connectors, that is listed in the replaceable parts list of Chapter 10.

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

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

xvii

Preface

Specifications

This chapter contains the specifications for the CSA7000B Series Communications Signal Analyzers and the TDS7000B Series Digital Phosphor Oscilloscopes. All specifications are guaranteed unless labeled “typical.” Typical specifications are provided for your convenience but are not guaranteed. Specifications that are marked with the n symbol are checked in chapter four, Performance Verification, of the service manual.

All specifications apply to all models unless noted otherwise. To meet specifications, the following conditions must be met:

H The instrument must have been calibrated in an ambient temperature

between 20 °C and 30 °C(68°F and 86 °F).

H The instrument must be operating within the environmental limits listed in

Table 1--12 on page 1--27.

H The instrument must be powered from a source that meets the specifications

listedinTable1--10onpage1--25.

H The instrument must have been operating continuously for at least 20 min-

utes within the specified operating temperature range.

H You must perform the S ignal Path Compensation procedure after the

20-minute warm-up period, and the ambient temperature must not change

more than 5 °C without first repeating the procedure. See Run the signal

path compensation routine on page 4--6 for instructions to perform this

procedure.

H You must perform the S ignal Path Compensation procedure after the

20-minute warm-up period, and if the ambient temperature changes more

than 5 °C(41°F), repeat the procedure.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

1- 1

Specifications

Product and Feature Description

Your instrument is shown in Table 1--1.

Table 1- 1: Instrument models

Acquisition Features

Number of

Model

TDS7704B 4 7GHz 20 GS/s

CSA7404B 4 4GHz 20 GS/s

TDS7404B 4 4GHz 20 GS/s

TDS7254B 4 2.5 GHz 20 GS/s

TDS7154B 4 1.5 GHz 20 GS/s

channels

Bandwidth

Maximum sample rate (real time)

Separate Digitizers. Ensure accurate timing measurements with separate digitizers for each channel. Acquisition on multiple channels is always concurrent. The digitizers can also be combined to yield a higher sample rate on a single channel.

Fast Acquisition. Acquire up to 400,000 waveforms per second to see rapidly changing signals or intermittent signal irregularities.

Long Record Lengths. Choose record lengths from 500 points up to 500,000 points per channel (up 2,000,000 points on a single channel). Extend the maximum record length up to a maximum of 64,000,000 points with memory options.

1- 2

Peak Detect Acquisition Mode. See pulses as narrow as 400 ps even at the slower

time base settings. Peak detect helps you see noise and glitches in your signal.

Acquisition Control. Acquire continuously or set up to capture single shot acquisitions. Enable or disable optional acquisition features such as equivalent time or roll mode. Use Fast Frame acquisition to capture and time stamp many events in a rapid sequence.

Horizontal Delay. Use delay when you want to acquire a signal at a significant time interval after the trigger point. Toggle delay on and off to quickly compare the signal at two different points in time.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Specifications

Optical-to-Electrical Converter. CSA7000B Series only. Test optical signals using the integrated optical-to-electrical converter and a fully calibrated signal path. Recovered clock and data signals are available. Optical reference receivers are available for selected optical communications standards.

Signal Processing

Features

Display Features

Average, Envelope, and Hi Res Acquisition. Use Average acquisition mode to remove uncorrelated noise from your signal. Use Envelope to capture and display the maximum variation of the signal. Use Hi Res to increase vertical resolution for lower bandwidth signals.

Waveform Math. Set up simple math waveforms using the basic arithmetic functions or create more advanced math waveforms using the math expression editor. Waveform expressions can even contain measurement results and other math waveforms.

Spectral Analysis. Display spectral magnitude and phase waveforms based on your time-domain acquisitions. Control the instrument using the traditional spectrum analyzer controls such as span and center frequency.

Color LCD Display. Identify and differentiate waveforms easily with color coding. Waveforms, readouts, and inputs are color matched to increase productivity and reduce operating errors. Enhance visualization of waveforms with color grading.

Digital Phosphor. The instrument can clearly display intensity modulation in your signals. The instrument automatically overlays subsequent acquisitions and then decays them to simulate the writing and decay of the phosphor in an analog instrument CRT. The feature results in an intensity-graded or color-graded waveform display that shows the information in the intensity modulation.

Fit to Screen. The Digital Phosphor technology performs the compression required to represent all record points on the screen, even at the maximum record length settings.

MultiView Zoom. To take advantage of the full resolution of the instrument you can zoom in on a waveform to see the fine details. Both vertical and horizontal zoom functions are available. Zoomed waveforms can be aligned, locked, and automatically scrolled.

Measurement Features

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Cursors. Use cursors to take simple voltage, time, and frequency measurements.

1- 3

Specifications

Automatic Measurements. Choose from a large palette of amplitude, time, and histogram measurements. You can customize the measurements by changing reference levels or by adding measurement gating.

Mask Testing. Optional on TDS7000B Series. Provides mask testing for verifying compliance to optical (CSA7000B Series only) and electrical standards. Optical mask testing uses integrated reference receivers.

Trigger Features

Convenience Features

Simple and Advanced Trigger Types. Choose simple edge trigger or choose from eight advanced trigger types to help you capture a specific signal fault or event.

Dual Triggers. Use the A (main) trigger system alone or add the B trigger to capture more complex events. You can use the A and B triggers together to set up a delay-by-time or delay-by-events trigger condition.

Comm Triggers. Optional on TDS7000B Series. Use comm triggers to trigger on communication signals.

Serial Triggers. Optional on TDS7000B Series. Use serial triggers to trigger on serial pattern data.

Recovered Clock and Data Triggers. Use recovered clock and data internally to trigger your waveforms. They are also available externally (CSA7000B Series only).

Autoset. Use Autoset to quickly set up the vertical, horizontal, and trigger controls for a usable display. If a standard mask is active (optional on TDS7000B Series), Autoset adjusts the selected waveform to match the mask, if possible.

1- 4

Touch Screen Interface. You can operate all instrument functions (except the

power switch and the touch screen enable/disable switch) from the touch screen interface. If convenient, you can also install a mouse and keyboard to use the interface.

Toolbar or Menu Bar. You can choose a toolbar operating mode that is optimized for use with the touch screen, or a PC-style menu bar operating mode that is optimized for use with a mouse.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Specifications

Open Desktop. The instrument is built on a Microsoft Windows software platform; the instrument application program starts automatically when you apply power to the instrument. You can minimize the instrument application and take full advantage of the built-in PC to run other applications. Moving waveform images and data into other applications is as simple as a copy/paste operation.

Dedicated Front Panel Controls. The front panel contains knobs and buttons to provide immediate access to the most common instrument controls. Separate vertical controls are provided for each channel. The same functions are also available through the screen interface.

Data Storage and I/O. The instrument has a removeable hard disk drive, a CD-RW, and a floppy disk drive that can be used for storage and retrieval of data. The instrument has GPIB, USB, Centronics, and Ethernet ports for input and output to other devices.

Online Help. The instrument has a complete online help system that covers all features. The help system is context sensitive; help for the displayed control window is automatically shown if you touch the help button. Graphical aids in the help windows assist you in getting to the information you need. You can also access the help topics through a table of contents or index.

Specification Tables

Table 1- 2: Channel input and vertical specifications

Characteristic Description

Input channels Four

Input coupling Channel input is disconnected from input termination when using GND coupling.

DC 50 Ω and GND

nInput impedance, DC coupled

50 Ω ±2.5% at 25 _C(77_F), ±0.2% over 0 to 50 _C (122 _F)

VSWR, typical

CSA7404B, TDS7404B, CSA7154, & TDS7154B

TDS7704B

1.5 for fin<1 GHz

1.7 for f

2.0 for f

<100 mV/div ≥100 mV/div

1.5 for f 2forf

2.5 for f

<2.5 GHz

<4 GHz

<2 GHz 1.1 for fin<2 GHz

<3 GHz 1.2 for fin<3 GHz

<6 GHz 1.3 for fin<6 GHz

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

1- 5

Specifications

Table 1- 2: Channel input and vertical specifications (Cont.)

Characteristic Description

nMaximum input voltage, <1 V

CSA7404B, TDS7404B, CSA7154, &

<5 V

TDS7154B

for <100 mV/division settings and

RMS

for ≥100 mV settings

RMS

TDS7704B

<6.5 V <6.0 V

for ≥100 mV settings for temperatrues ≤45 °C

RMS

for ≥100 mV settings for temperatrues >45 °C

RMS

Number of digitized bits 8bits

Sensitivity range Fine adjustment available with ≥1% resolution

2 mV/div to 1 V/division, in a 1-2-5 sequence

nDC gain accuracy Net offset is the nominal voltage that must be applied to the channel to bring the

trace to center screen. Net offset = offset -- (position × volts/division) and is expressed in volts

TDS7704B 2mV/divto3.98mV/div (3% +(6% × | net offset/1V | ))

4 mV/div to 99.5 mV/div (2.5% +(2% × | net offset/1V | ))

100 mV/div to 1 V/div (2.5% +(2% × | net offset/10V | ))

1- 6

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table 1- 2: Channel input and vertical specifications (Cont.)

Characteristic Description

CSA7404B, TDS7404B, TDS7254B, & TDS7154B

2mV/divto3.98mV/div (2.5% +(6% × | net offset/1V | ))

4 mV/div to 99.5 mV/div

100 mV/div to 1 V/div (2% +(2% × | net offset/10V | ))

Specifications

(2% +(2% × | net offset/1V | ))

n DC voltage measurement accuracy CSA7404B, TDS7404B, TDS7254B, & TDS7154B

Average acquisition mode (≥16 averages)

Delta voltage measurement between any two averages of ≥16 waveforms acquired under the same setup and

mbientconditions

Measurement type DC accuracy (in volts)

2mV/divto3.98mV/div ±[(2.5% +(6% × | net offset/1V | )) ×

| reading -- net offset | + offset accuracy + 0.08 division × V/division]

4 mV/div to 99.5 mV/div ±[(2% +(2% × | net offset/1V | )) × |

reading -- net offset | + offset accuracy + 0.08 division × V/division]

≥100 mV/div ±[(2% +(2% × | net offset/10V | )) ×

| reading -- net offset | + offset accuracy + 0.08 division × V/division]

2mV/divto3.98mV/div ±[(2.5% +(6% × | net offset/1V | )) × |

reading | + 0.16 division × V/division setting]

4 mV/div to 99.5 mV/div

100 mV/div to 1 V/div ±[(2% +(2% × | net offset/10V | )) ×

Net offset is the nominal voltage that must be applied to the channel to bring the trace to center screen. Net offset = offset -- ( position × volts/division) and is expressed in volts

±[(2% +(2% × | net offset/1V | )) × | reading | + 0.16 division × V/division setting]

| reading | + 0.16 division × V/division setting]

n DC voltage measurement accuracy, TDS7704B

Average acquisition mode (≥16 averages)

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Measurement type DC accuracy (in volts)

2mV/divto3.98mV/div ±[(3% +(6% × | net offset/1V | )) ×

| reading -- net offset | + offset accuracy + 0.08 division × V/division]

4 mV/div to 99.5 mV/div ±[(2.5% +(2% × | net offset/1V | )) ×

| reading -- net offset | + offset accuracy + 0.08 division × V/division]

100 mV/div to 1 V/div ±[(2.5% +(2% × | net offset/10V | ))

× | reading -- net offset | + offset accuracy + 0.08 division × V/division]

1- 7

Specifications

Nonl

inearity,t

ypica

l<1digitizationlevel(DL),dif

tia

2DL

int

l,ind

tlybased

5°C(0°C

forTDS7154

B,andCSA7154)

to5

0°C(5

9°F

to122°F

),dera

tedby

Table 1- 2: Channel input and vertical specifications (Cont.)

Characteristic Description

Delta voltage measurement between any two averages of ≥16 waveforms acquired under the same setup and

mbientconditions

n Analog bandwidth DC 50 Ω coupling, Full bandwidth, TCA-SMA or TCA-N adapter, operating ambient

2mV/divto3.98mV/div ±[(3% +(6% × | net offset/1V | )) ×

| reading | + 0.16 division × V/division setting]

4 mV/div to 99.5 mV/div

100 mV/div to 1 V/div ±[(2.5% +(2% × | net offset/10V | )) ×

Net offset is the nominal voltage that must be applied to the channel to bring the trace to center screen. Net offset = offset -- ( position × volts/division) and is expressed in volts

eren

30 MHz/°C below 15 °C(59°F)

±[(2.5% +(2% × | net offset/1V | )) ×

| reading | + 0.16 division × V/division setting]

; ≤

egr

ependen

Analog bandwidth with P7240 active probe or TCA-BNC adapter, typical CSA7404B & TDS7404B

SCALE range Bandwidth

2mV/divto3.9mV/div DC to ≥1GHz

4mV/divto9.9mV/div DC to ≥1.25 GHz

≥10 mV/div TDS7704B

DC to 7 GHz, DC to 7.25 GHz, typical

CSA7404B,& TDS7404B:

DC to 4 GHz

TDS7254B:

DC to ≥ 2.5 GHz

TDS7154B:

DC to 1.5 GHz

DC 50 Ω coupling, Full bandwidth, operating ambient 15 °Cto30°C(59°Fto 86 °F), derated by 20 MHz/°C above 30 °C(86°F)

SCALE range

2mV/divto3.9mV/div DC to 1 GHz

4mV/divto9.9mV/div DC to 1.25 GHz

≥10 mV/div DC to 4 GHz

Bandwidth

1- 8

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table 1- 2: Channel input and vertical specifications (Cont.)

Characteristic Description

Analog bandwidth with P7330 active probe, typical CSA7404Band TDS7404B

DC 50 Ω coupling, Full bandwidth, operating ambient 15 °Cto30°C, derated by 20 MHz/°C above 30 °C

SCALE range

2mV/divto3.9mV/div DC to 1 GHz

4mV/divto9.9mV/div DC to 1.25 GHz

≥10 mV/div DC to 3.5 GHz

Specifications

Bandwidth

Analog bandwidth with P7260 active probe or TCA-BNC adapter, typical TDS7704B

Calculated rise time, typical

TDS7704B 62 ps

CSA7404B & TDS7404B 100 ps

CSA7154 130 ps

TDS7154B 200 ps

Step response settling errors, typical Full bandwidth

Operating ambient 15 °Cto30°C(59°Fto86°F) at V/div ≥10 mV/div, derated by 20 MHz/°C above 30 °C(86°F)

SCALE range

2mV/divto3.9mV/div DC to 1 GHz

4mV/divto9.9mV/div DC to 1.25 GHz

≥10 mV/div DC to 6 GHz

SCALE range and step amplitude Settling error at time after step

2 mV/div to 99.5 mV/div, with ≤ 1.5 V step

100 mV/div to 1 V/div, with ≤ 3Vstep

Bandwidth

20 ns: ≤ 2% 1ms:≤ 0.1%

20 ns: ≤ 2% 1ms:≤ 0.2%

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

1- 9

Specifications

Table 1- 2: Channel input and vertical specifications (Cont.)

Characteristic Description

Pulse response, peak detect, or envelope mode Sample rate setting Minimum pulse width

2.5 GS/s or less 400 ps

Position range ± 5 divisions

Offset range

SCALE range Offset range

2mV/divto50mV/div ±0.50 V

50.5 mV/div to 99.5 mV/div ±0.25 V

100 mV/div to 500 mV/div ±5V

505 mV/div to 1 V/div ±2.5 V

n Offset accuracy Net offset is the nominal voltage that must be applied to the channel to bring the trace

to center screen. Net offset = offset -- ( position × volts/divisi on). Offset accuracy is the accuracy of this voltage level.

CSA7404B, TDS7404B, CSA7154, & TDS7154B

TDS7704B SCALE range Offset accuracy

SCALE range Offset accuracy

2mV/divto9.95mV/div

10 mV/div to 99.5 mV/div ±(0.35% ×| net offset | + 1.5 mV +

100 mV/div to 1 V/div ±(0.35% ×| net offset | + 15 mV +

2mV/divto9.95mV/div ±(0.35% ×| net offset | + 1.5 mV +

10 mV/div to 99.5 mV/div ±(0.5% ×| net offset | + 1.5 mV +

100 mV/div to 1 V/div ±(0.5% ×| net offset | + 15 mV + 0.1 div

±(0.2% ×| net offset | + 1.5 mV +

0.1 div ×V/div setting)

×V/div setting)

1- 10

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table 1- 2: Channel input and vertical specifications (Cont.)

Characteristic Description

Effective bits, typical

Specifications

CSA7404B, TDS7704B, TDS7404B, CSA7154, & TDS7154B

n Delay between channels ≤ 30 ps between any two channels with the same scale and coupling settings

n Channel-to-channel crosstalk

Nine division sine wave input at the indicated f requency, sampled at 50 mV/division and 20 GS/s

Input frequency Effective bits

1MHz 6.0 bits

1GHz 5.7 bits

1.5 GHz 5.5 bits

2 GHz, CSA7404B, TDS7404B, TDS7704B & CSA7154 only

2.5 GHz, CSA7404B, TDS7704B, TDS7404B & CSA7154 only

3 GHz, CSA7404B, TDS7704B & TDS7404B only

4 GHz, CSA7404B, TDS7704B & TDS7404B only

5 GHz, TDS7704B only 4.5 bits

6 GHz, TDS7704B only 3.5 bits

7 GHz, TDS7704B only 3.0 bits

5.3 bits

5.2 bits

5.1 bits

4.9 bits

≥15:1 at rated bandwidth (CSA7404B, TDS7704B, TDS7404B & CSA7154 only), and ≥ 80:1 at ≤1.5 GHz or the rated bandwidth, whichever is less. Assumes two channels with the same scale settings

Rise time calculation: A simple formula relating these times to bandwidth for all instruments is not available. The instruments have been characterized with the typical rise times listed.

Table 1- 3: Horizontal and acquisition system specifications

Characteristic Description

Real-time sample rate range Number of channels acquired Sample rate range

1 5 S/s to 20GS/s

2 5 S/s to 10GS/s

3or4 5 S/s to 5GS/s

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

1- 11

Specifications

1,000,000points(

1or2ch

ly)

Table 1- 3: Horizontal and acquisition system specifications (Cont.)

Characteristic Description

Equivalent-time sample rate or interpolated waveform rate range

Acquisition modes Sample, Peak detect, Hi Res, Average, Envelope, and Waveform database

Minimum record length 500 points

Maximum record length, sample mode Depends on the number of active channels and the record length options installed.

Standard 500,000 points (3 or 4 channels)

Option 2M installed 2, 000,000 points (3 or 4 channels)

Option 3M installed 4, 000,000 points (3 or 4 channels)

Equivalent-time acquisition can be enabled or disabled. When disabled, waveforms are interpolated at the fastest time base settings.

10GS/s to 1TS/s

Maximum record length is less in serial trigger mode

nnelson

2,000,000 points (1 channel only)

4,000,000 points (1 or 2 channels onl y) 8,000,000 points (1 channel only)

8,000,000 points (1 or 2 channels onl y) 16,000,000 points (1 channel only)

Option 4M installed 8, 000,000 points (3 or 4 channels)

16,000,000 points (1 or 2 channels onl y) 32,000,000 points (1 channel only)

Option 5M installed 16, 000,000 points (3 or 4 channels)

32,000,000 points (1 or 2 channels onl y) 64,000,000 points (1 channel only)

1- 12

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Specifications

dependingonmemoryoptioninstalle

Table 1- 3: Horizontal and acquisition system specifications (Cont.)

Characteristic Description

Maximum record length, HiRes mode, sample rate ≤1.25 GS/s

Seconds/division range 50 ps/div to 10 s/div

Maximum FastFrame update rate, nominal 265,000 frames per second

Frame length and maximum number of frames Maximum number of frames for Sample or Peak Detect acquisition mode,

2,000,000 points (1, 2, 3, or 4 channels)

Frame length Maximum number of frames

50 points Standard: 648--5872

Option 2M: 2660--24088 Option 3M: 5321--48192 Option 4M: 5321--48192 Option 5M: 10644--96408

500 points Standard: 580--3560

Option 2M: 2381--14632 Option 3M: 4765--29272 Option 4M: 4765--29272 Option 5M: 9531--58552

5000 points Standard: 163--720

Option 2M: 669--2968 Option 3M: 1339--5936 Option 4M: 1339--5936 Option 5M: 2679--11880

50,000 points Standard: 19--80

Option 2M: 81--328 Option 3M: 163--656 Option 4M: 163--656 Option 5M: 327--1320

500,000 points Standard: 2--8

Option 2M: 8--32 Option 3M: 16--64 Option 4M: 16--64 Option 5M: 32--128

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

1- 13

Specifications

Table 1- 3: Horizontal and acquisition system specifications (Cont.)

Characteristic Description

Update rate, maximum Fast Acquisition on: 400,000 waveforms per second

Fast Acquisition off: 60 waveforms per second

n Internal time-base reference frequency 10 MHz 2.5 ppm over any ≥100 ms interval. Aging <1 ppm per year

n Long term sample rate and del ay time

±2.5 ppm over any ≥100 ms interval. Aging <1 ppm per year

accuracy

Aperture uncertainty, typical Short term:

≤2 ps rms, records having duration ≤100 ms. ≤800 fs rms, records having duration ≤10 s

Long term:

≤15 parts per trillion rms, records having duration ≤1 minute

Time base delay time range 5nsto250s

n Delta time measurement accuracy For a single channel, with signal amplitude > 5 divisions, reference level set at 50%,

interpolation set to sin(x)/x, with risetime >1.4×T is greater) and acquired ≥10 mV/Div, where T

and <4×Tsor 150 ps (whichever

is the sample period. RMS

specification is typical.

Conditions Accuracy

Single shot signal, Sample acquisition mode, Full bandwidth

± (0.06/sample rate +2.5 ppm × | reading | ) RMS

± (0.3/sample rate +2.5 ppm × | reading |) peak

Average acquisition mode, >100 aver-

± (4 ps +2.5 ppm × | reading | ) peak

ages, Full bandwidth

1- 14

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table 1- 4: Trigger specifications

Characteristic Description

Trigger jitter, typical

TDS7704B 1.2 ps rms for low frequency, fast rise time signal

CSA7404B & TDS7404B 1.5 ps rms for low frequency, fast rise time signal

CSA7154, & TDS7154B 2 ps rms for low frequency, fast rise time signal

n Edge Trigger Sensitivity All sources, for vertical scale settings ≥10 mV/div and ≤1V/div

Trigger Source Sensitivity

Main trigger, DC coupled ≤0.5 div from DC to 50 MHz

CSA7404B, TDS7704B, TDS7404B ≤1.5 div at 3 GHz

TDS7254B: ≤1 div at 2.5 GHz

TDS7154B ≤1 div at 1.5 GHz

Specifications

Edge Trigger Sensitivity, either slope, DC

oupled, typi

Delayed trigger, DC coupled ≤0.5 div from DC to 50 MHz

CSA7404B, TDS7704B, TDS7404B ≤1.5 div at 3 GHz

TDS7254B: ≤1 div at 2.5 GHz

TDS7154B ≤1 div at 1.5 GHz

Auxiliary input, DC coupled ≤150 mV from DC to 50 MHz, increas-

ing to 500 mV at 2.5 GHz (typical between 2 and 2.5 GHz)

All sources, for vertical scale settings ≥10 mV/div and ≤1V/div

Trigger coupling

DC ≤0.5 div from DC to 50 MHz

NOISE REJ 3×the DC-coupled limits

AC Same as DC-coupled limits for frequen-

HF REJ Same as DC-coupled limits for frequen-

Sensitivity

≤1 div at 1.25 GHz

cies >100 Hz, attenuates signals <100 Hz

cies <20 kHz, attenuates signals >20 kHz

LF REJ Same as DC-coupled limits for frequen-

cies >200 kHz, attenuates signals <200 kHz

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

1- 15

Specifications

Table 1- 4: Trigger specifications (Cont.)

Characteristic Description

Edge trigger sensitivity, 4 GHz, typical

CSA7404B, TDS7704B, TDS7404B CH1 — CH4

Trigger coupling Sensitivity

Main trigger, DC coupled 2.7 divisions at 4 GHz

Edge trigger sensitivity, not DC coupled, typical All sources, for vertical scale settings ≥10 mV/div and ≤1V/div

Trigger coupling Sensitivity

NOISE REJ 3×the DC-coupled limits

AC Same as DC-coupled limits for frequen-

cies >100 Hz, attenuates signals <100 Hz

HF REJ Same as DC-coupled limits for frequen-

cies <20 kHz, attenuates signals >20 kHz

LF REJ Same as DC-coupled limits for frequen-

cies >200 kHz, attenuates signals <200 kHz

Auxiliary trigger input characteristics, typical 50 Ω ±10%, ±5 V (DC + peak AC)

Lowest frequency for Set Level to 50%, typical 50 Hz

Advanced trigger sensitivity, typical For vertical scale settings 10 mV/div and 1 V/div

Advanced triggers: 1.0 div, from DC to 1 GHz at the TekConnect connector

Advanced trigger timing For vertical scale settings 10 mV/div and 1 V/div

Minimum recognizable event width or time

Glitch type Minimum glitch width = 225 ps

(170 ps on the TDS7704B)

Runt type Minimum runt width = 225 ps 250 ps

Time-qualified runt type Minimum runt width = 340 ps 450 ps

Width type Minimum difference between upper and

lower limits = 225 ps

Window type 225 ps 300 ps

Minimum rearm time to recognize next event

250 ps

1- 16

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table 1- 4: Trigger specifications (Cont.)

Characteristic Description

Transition type Minimum transition time = 0 ps 225 ps

Timeout type Minimum timeout time = 340 ps 450 ps

Logic or state type, typical Minimum event width = 100 ps 500 ps

Specifications

Setup/Hold type, typical Minimum clock pulse width from active

edge to inactive edge

500 ps + hold time setting for times ≥0

1.5 ns + hold time setting for times <0

Advanced trigger timer ranges Limits

Glitch type 340 ps to 1 s

Runt type, time qualified 340 ps to 1 s

Width type 340 ps to 10 s

Timeout type 340 ps to 1 s

Transition type 340 ps to 1 s

Pattern type 340 ps to 1 s

Window type 340 ps to 1 s

Setup/Hold type Setup and Hold timers Limits

Setup time (time from data transition to clock edge)

Hold time (time from clock edge to data transition)

Setup time + Hold time (algebraic sum of the two settings)

Minimum clock pulse width from inactive edge to active edge

500 ps

--100 ns to +100 ns

--1 ns to +102 ns

500 ps

Logic-qualified pulse-type trigger minimum timing requirements

Glitch 100 ps 40 ps 60 ps

Runt Runt width + 150 ps 160 ps --16 ps

Time-qualified runt Runt width + 330 ps 160 ps 175 ps

Width 190 ps 40 ps 175 ps

Transition 330 ps 225 ps 175 ps

Window 190 ps --20 ps 0 ps

Minimum event duration Setup time Hold time

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

1- 17

Specifications

Table 1- 4: Trigger specifications (Cont.)

Characteristic Description

n Time-qualified trigger timer accuracy For Glitch, Timeout, or Width types

Time range Accuracy

340 ps to 1.5 s (360 ps to 1.8 ns typical)

1.5 sto1s ±91 ns

Trigger level or threshold range Trigger Source Sensitivity

Any channel ±12 divisions from center of screen

Auxiliary input ±5V

Line ±0 V, not settable

Trigger level or threshold accuracy, typical Edge trigger, DC coupling, for signals having rise and fall times ≤1ns

Trigger Source Accuracy

Any channel ± [(2% × | setting -- net offset | ) +

Auxiliary Not specified

where, net offset = offset -- ( position × volts/division)

B Event (Delayed) trigger Trigger After Time Trigger on nthEvent

Range Delay time = 5 ns to 250 s Event count = 1 to 10

Minimum pulse width, typical — 250 ps

Minimum time between events, typical — 1ns

±5% of setting

(0.35 div × volts/div setting) + offset accuracy] (≥ 10 mV/div only)

Trigger position error, typical Edge trigger, DC coupling, for signals having a slew rate at the trigger point of ≥ 0.5

division/ns

Acquisition mode Error

Sample, Average ± (1 waveform interval + 200 ps)

Peak Detect, Envelope ± (2 waveform interval + 200 ps)

Trigger holdoff range 250 ns to 12 s plus random holdoff, if enabled.

Minimum resolution is 8 ns for settings ≤1.2 s. A dither of 800 ps is added to the holdoff setting

1- 18

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table 1- 5: Serial Trigger specifications (optional on TDS7000B Series)

Characteristic Description

Serial trigger number of bits 64

Serial trigger encoding types NRZ

nSerial trigger baud rate limits Up to 1.25 GBd

Specifications

Serial trigger, serial word recognizer position accuracy

Clock recovery frequency range 1.5 MBd to 3.125 GBd. Above 1250 MHz the clock is only available internally as a

Clock recovery jitter, typical <0.25% bit period + 2 ps rms for PRBS data patterns.

Clock recovery tracking/acquisition range, typical ±2% of requested baud

Minimum signal amplitude needed for clock recovery, typical

Edge trigger, DC coupling, for signals having a slew rate at the trigger point of ≥ 0.5 division/ns

Acquisition mode Error

Sample, Average ± (1 waveform interval + 200 ps)

Peak Detect, Envelope ± (2 waveform interval + 200 ps)

trigger source. Below 1250 MHz the cl ock is also available at the Recovered Clock output along with regenerated data (CSA7000B Series only).

<0.25% bit period + 1.2 ps rms for repeating 01 data patterns.

1 division p-p up to 1.25 GBd

1.5 divisions p-p above 1.25 GBd

Table 1- 6: Display specifications

Characteristic Description

Display type 210.4 mm (8.3 in) (W)× 157.8 mm (6.2 in) (H), 263 mm (10.4 in) diagonal, liquid

crystal active-matrix color display

Display resolution 1024 horizontal × 768 vertical pixels

Pixel pitch 0.2055 mm horizontal, 0.2055 mm vertical

Response time, typical 15 ms, white to black

Display refresh rate 59.94 frames per second

Viewing angle, typical Horizontal: 60 degrees left, 60 degrees right

Vertical: 60 degrees up, 45 degrees down

Displayed intensity levels Each R-G-B input is 6 bits, giving 64 int ensity levels of each color component

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

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Specifications

Table 1- 7: Input/output port specifications

Characteristic Description

Rear-panel I/O ports Ports located on the rear panel

Video output port Upper video port, DB-15 female connector, connect a second monitor to use

dual-monitor display mode. Video is DDC2B compliant.

Scope XGA video port Lower video port, DB-15 female connector, 31.6 kHz sync, EIA RS-343A

compliant, connect to show the instrument display, including live waveforms, on an external monitor

Parallel port (IEEE 1284) DB-25 connector, supports the following modes:

standard (output only)

bidirectional (PS-2 compatible) bidirectional enhanced parallel port (IEEE 1284 standard, mode 1 or mode 2, v 1.7)

bidirectional high-speed extended capabilities port (ECP)

Serial port DB-9 COM1 port, uses NS16C550-compatible UARTS, transfer speeds up to

115.2 kb/s

Keyboard port PS-2 compatible, instrument must be powered down to make connection

Mouse port PS-2 compatible, instrument must be powered down to make connection

LAN port RJ-45 connector, supports 10 base-T and 100 base-T

Audio ports Miniature phone jacks for stereo microphone input and stereo line output

USB ports, two Allows connection or disconnection of USB keyboard and/or mouse while

instrument power is on

GPIB port IEEE 488.2 st andard interface

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Specifications

0mV/div±20%

intoa1MΩloa

Ana

logS

ignalOutputbandwidt

h,t

ypical1.8GHzintoa50Ωloa

Table 1- 7: Input/output port specifications (Cont.)

Characteristic Description

n Probe Compensator Output Front-panel BNC connector, requires Probe Cal Deskew Fixture for probe

attachment

Note: During probe calibration only, a relay switches a DC calibration voltage to this output in place of the 1 kHz square wave. This voltage varies from

--10 V to +10 V with a source impedance less than 1 Ω and short circuit current as high as 300 mA.

Output voltage Frequency

500 mV (from base to top) ± 20% into a 50 Ω

1 kHz ± 5%

load (Vol = --500 mV, Voh = 0 V typical)

1V(frombasetotop)± 20% into a 1 ΜΩ load (Vol = --1.0 V, Voh = 0 V typical)

n Analog Signal Output amplitude BNC connector, provides a buffered version of the signal that is attached to

the channel 3 input when channel 3 is the trigger source

10 mV/div ± 20% into a 50 Ω load

Offset: between --100 mV and --170 mV into 50 Ω

n Auxiliary Output levels BNC connector, provides a TTL-compatible pulse (polarity selectable) for

each A or B trigger (selectable)

high V

out

≥2.5 V into open circuit, ≥1.0 V into 50 Ω load

low (true)

out

≤0.7 V with ≤4masink, ≤0.25 V into 50 Ω load

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Specifications

Table 1- 7: Input/output port specifications (Cont.)

Characteristic Description

Auxiliary Output pulse width, typical Pulse width varies, 1 s minimum

External reference Run SPC whenever the external reference is more than 2000 ppm different

than the internal reference or the reference at which SPC was last run.

Frequency range 9.8 MHz to 10.2 MHz

nInput sensitivity ≥200 mV

Input voltage, maximum 7V

p-p

for frequencies between 9.8 MHz to 10.2 MHz

p-p

Input impedance 1.5 kΩ,Cin= 40 pF, measured at >100 kHz

nInternal reference output

Frequency 10 MHz 2.5 ppm over any ≥100 ms interval. Aging <1 ppm per year

Output voltage V

Serial data output baud rate range (CSA7000B Series only)

Serial clock output frequency range (CSA7000B Series only)

high V

out

≥2.5 V into open circuit, ≥1.0 V into 50 Ω load

low (true)

out

≤0.7 V with ≤4masink, ≤0.25 V into 50 Ω load

Fbaud <1250 MBd. Output swing of 1010 repeating pattern at this baud will be at least 200 mV into 50 Ω.

Peak-to-peak output swing at 625 MHz is at least 200 mV p-p into 50 Ω. Higher frequencies are further attenuated by approxim ately 6 dB per octave above 625 MHz.

Use AC or DC coupled 50 Ω termination; AC coupling the clock provides about 10% more amplitude.

Serial data and clock output voltages, typical (CSA7000B Series only)

Voh=--1.0V Vol = - -1.7 V Assumes a load impedance greater than 1 kΩ.(50Ω source termination.)

If a 50 Ω or 75 Ω load is used, either use a DC blocking capacitor in series with the signal or reference the termination to about --1.3 V. The signal amplitude will be correspondingly reduced.

Serial data output latency, typical (CSA7000B Series only)

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

11 ns ±4 ns plus 35.5 clock cycles

Table 1- 8: O/E converter (CSA7000B Series only)



W+(

fW/div

)

≤

1.1W+(

6.5%ofW/divsetting)

Specifications

Characteristic

Optical input connector Rifocs universal connector

O/E wavelength range 700 nm to 1650 nm

nO/E gain ≥0.27 V/mW (0.35 V/mW typical) at 780 nm ±20 nm

Optical Channel DC measurement accuracy, typical ±((2% +(2% ¢ net offset/1 mW)) ¢reading +(Position ¢ W/div) -- Offset 

nOptical Channel Bandwidth (includes O/E, O/E-to-TekConnect adaptor, and instrument)

DC conversion gain linearity <4mV/div: ±(4.5% + (6% × net offset))

Description

≥0.33 V/mW (0.40 V/mW typical) at 850 nm ±20 nm ≥0.64 V/mW (0.75 V/mW typical) at 1310 nm ±20 nm ≥0.64 V/mW (0.75 V/mW typical) at 1550 nm ±20 nm

Applies to graded index multimode fiber with core diamet er 62.5 m or smaller at the input and O/E Electrical-to-CH1 Input adapter

+0.35% ¢ |Net Offset +3 W +0. 18 div ¢ W/div) only between 10 W/div and 50 W/div inclusive. Average of ≥16 waveforms

The delta between any two averages of ≥16 waveforms acquired under the same setup and ambient conditions: ±((2% +(2% × net offset/1 mW)) × reading  +0.16 div × W/div)

Excludes normal variations due to fiber connection to the front of the instrument

5 _Cto25_C:

2.4 GHz

4 mV/div to 99.5 mV/div: ±(4% + (2% × net offset)) 100 mV/div to 1.0 V/div: ±(4% + (2% × net offset/10))

Absolute maximum nondestructive optical input

Maximum nonsaturating linear response to transient input, typical

Output zero (Dark level) ±(1.6 W +0.1 division × W/div) from 10 Wto50W per division vertical

nMaximum noise output, rms CSA7404B:

5 mW average; 10 mW peak at the wavelength with the highest relative responsivity

The transient optical signal response is linear (±6%) for <170 Waverage input (340 W p) at 850 nm <120 W average input (240 W p) at 1310 and 1550 nm

scale setting

1310 nm and 1550 nm

≤1.1

850 nm

≤2.1 W + (6.5% of W/div setting)

780 nm

≤2.6 W + (6.5% of W/div setting)

O/E converter alone

≤0.85 W

6.5% o

settin

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Specifications

Table 1- 8: O/E converter (CSA7000B Series only) (Cont.)

Characteristic

Description

Optical return loss, typical With 50 m or 62.5 m core multimode fiber (CPC6):

>14 dB for 780 nm ±20 nm >14 dB for 850 nm ±20 nm

With 9 m core singlemode fiber (SMF-28): >28 dB for 1310 nm ±20 nm >28 dB for 1550 nm ±20 nm

The return loss includes optical reflection contributions from the device under test’s SC-SPC connector interface with the user’s PC style connector as well as all other optical reflections from that interface up to and including the device under test’s final photo diode termination.

Peak-to-peak aberrations in response to falling edge, typical

Maximum falling edge 10% to 2% settling time (ORR disabled), typical

Smallest average power for mask test (sensitivity), typical

11% peak-to-peak total aberration (system including O/E-to-CH1 input adapter, and instrument)

The step response to a fast opt ical square OFF edge reaches toc within 2% of the final 0% level within 2 ns after the 10% transition point.

1310 nm and 1550 nm: 40 W peak-to-peak. 20 W (--17 dBm) average power assuming 50% average duty cycle

780 nm and 850 nm: 80 W peak-to-peak. 40 W (--14 dBm) average power assuming 50% average duty cycle

Assumes the scale factor is set to minimum W/div settings and signal is at least 2 divisions peak-to-peak

Optical scale factor range 10 W per division to 500 W per division

Optical reference receiver typically available from the following scale factors: 1310 nm and 1550 nm:

13.5 W per division to 66 W per division

850 nm:

25 W per division to 125 W per division

780 nm:

28 W per division to 142 W per division

All specifications are with the O/E electrical out-to-CH1 input adapter installed.

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Table 1- 9: Data storage specifications

Characteristic Description

Nonvolatile memory retention time, typical ≥ 5 years

Floppy disk 3.5 in floppy disk drive, 1.44 MB capacity

Hard disk Removeable hard disk drive, ≥ 20 GB capacity

CD-RW CD-RW drive

Windows memory 1GB

Table 1- 10: Power sour ce specifications

Characteristic Description

Power consumption ≤600 Watts (900 VA)

Source voltage and frequency 100 to 240 V 10%,50Hzto60Hz

Specifications

115 V 10%, 400 Hz

CAT II

Fuse rating Either one of the following sizes can be used, each size requires a different fuse

cap. Both fuses must be the same type. Line and Neutral are fused.

0.25 in × 1.25 in size UL198G and CSA C22.2, No. 59, fast acting: 8 A, 250 V (Tektronix part number 159-0046-00, Bussman ABC-8, Littelfuse 314008)

5mm× 20 mm size IEC127, sheet 1, fast acting “F”, high breaking capacity: 6.3 A, 250 V (Tektronix part

number 159-0381-00, Bussman GDA 6.3, Littelfuse 21606.3)

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Specifications

Table 1- 11: Mechanical specifications

Characteristic Description

Weight

Benchtop configuration 17.7 kg (39 lbs) instrument only

19.1 kg (42 lbs) with fully accessorized pouch

38.8 kg (85.5 lbs) when packaged for domestic shipment

Rackmount kit 18.6 kg (41 lbs) rackmounted instrument

5.6 kg (12.5 lbs) kit packaged f or domestic shipment

Dimensions

Benchtop configuration With front cover Without front cover

278 mm (10.95 in) height 330 mm (13 in) with feet extended 455 mm (17.9 in) width 435 mm (17.13 in) depth

Rackmount configuration (Option 1R) With rack handles Without rack handles

267 mm (10.5 in) height 502 mm (19.75 in) width 486 mm (19.13 in) depth

Cooling Fan-forced air circulation with no air fil ter

Required clearances To p 0mm(0in)

Bottom 19 mm (0.75 in) minimum or

Left side 76 mm (3 in)

Right side 76 mm (3 in)

Front 0mm(0in)

Rear 0 mm (0 in) on rear feet

Construction material Chassis parts are constructed of aluminum alloy, front panel is constructed of plastic

laminate, circuit boards are constructed of glass laminate, and the outer shell is molded and textured from a polycarbonate/ABS blend

277 mm (10.9 in) height 330 mm (13 in) with feet extended 455 mm (17.9 in) width 426 mm (16.75 in) depth

267 mm (10.5 in) height 482 mm (19 in) width 435 mm (17.13 in) depth

0 mm (0 in) when standing on feet, flip stands down

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Specifications

Table 1- 12: Environmental specifications

Characteristic Description

Temperature, operating +5 °Cto+50 °C(41 °F to +122 °F), excluding floppy disk and compact disk drives

+10 °Cto+45 °C(50°Fto+113°F), including floppy disk and compact disk drives

Nonoperating -- 2 2 °Cto+60°C(71°F to +140 °F)

Humidity, operating 20% to 90% relative humidity with a maximum wet bulb temperature of +29 °C

(+84 °F) at or below +50 °C (+122 °F), noncondensing

Upper limit derates to 25% relative humidity at +50 °C (+122 °F)

Nonoperating With no diskette in floppy disk drive

20% to 90% relative humidity with a maximum wet bulb temperature of +29 °C (+84 °F) at or below +60 °C (+140 °F), noncondensing

Upper limit derates to 20% relative humidity at +60 °C (+140 °F)

Altitude, operating 3,048 m (10,000 ft.)

Nonoperating 12,190 m (40,000 ft.)

Random vibration, operating 0.24 g

with floppy disk and compact disk installed

Nonoperating 2.28 g

from 5 Hz to 500 Hz, 10 minutes on each axis, 3 axis, 30 minutes total ,

RMS

from 5 Hz to 500 Hz, 10 minutes on each axis, 30 minutes total, 3 axi s

RMS

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Specifications

Certifications and Compliances

EC Declaration of

Conformity - EMC

Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities:

EN 61326. EMC requirements for Class A electrical equipment for measurement, control, and laboratory use. Annex D.

H IEC 61000--4--2. Electrostatic discharge immunity

H IEC 61000--4--3. RF electromagnetic field immunity

H IEC 61000--4--4. Electrical fast transient / burst immunity

H IEC 61000--4--5. Power line surge immunity

H IEC 61000--4--6. Conducted RF Immunity

H IEC 61000--4--11. Voltage dips and interruptions immunity

EN 61000- 3- 2. AC power line harmonic emissions

EN 61000- 3- 3. Voltage changes, fluctuations, and flicker

Australia / New Zealand

Declaration of Conformity

-EMC

Complies with EMC provision of Radiocommunications Act per these standard(s):

H AS/NZS 2064.1/2. Industrial, Scientific, and Medical Equipment: 1992

Emissions which exceed the levels required by this standard may occur when this equipment is connected to a test object.

If interconnect cables are used, they must be low-EMI shielded cables such as the following Tektronix part numbers or their equivalents: 012-0991-00, 012-0991-01, 012-0991-02 or 012-0991-03 GPIB Cable; 012-1213-00 (or CA part number 0294-9) RS-232 Cable; 012-1214-00 Centronics Cable; or LCOM part number CTL3VGAMM-5 VGA Cable.

Under these conditions, the specifications are amended as follows: 10 mV/division to 1 V/division: ≤0.4 division waveform displacement or ≤0.8 division increase in peak-to-peak noise 5 mV/division and 2 mV/division, typical: ≤8 mV increase in peak-to-peak noise

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Specifications

EC Declaration of

Conformity - Low Voltage

U.S. Nationally

Recognized Testing

Laboratory Listing

Canadian Certification

Additional Compliance

Equipment Type

Safety Class

Compliance was demonstrated to the following specification as listed in the Official Journal of the European Communities:

Low Voltage Directive 73/23/EEC, amended by 93/68/EEC.

H EN 61010-1:2001. Safety requirements for electrical equipment for

measurement control and laboratory use.

H UL 61010B--1:2003. Standard for electrical measuring and test equipment.

H CAN/CSA C22.2 No. 1010.1:1997. Particular requirements for electrical

equipment for measurement, control, and laboratory use. Part 1.

H IEC 61010--1:2001. Safety requirements for electrical equipment for

measurement, control, and laboratory use.

Test and measuring equipment.

Class 1 -- grounded product

Pollution Degree

Descriptions

Pollution Degree

A measure of the contaminates that could occur in the environment around and within a product. Typically the internal environment inside a product is considered to be the same as the external. Products should be used only in the environment for which they are rated.

H Polution Degree 1. No pollution or only dry, nonconductive pollution occurs.

Products in this category are generally encapsulated, hermetically sealed, or located in clean rooms.

H Polution Degree 2. Normally only dry, nonconductive pollution occurs.

Occasionally a temporary conductivity that is caused by condensation must be expected. This location is a typical office/home environment. Temporary condensation occurs only when the product is out of service.

H Polution Degree 3. Conductive pollution, or dry, nonconductive pollution

that becomes conductive due to condensation. These are sheltered locations where neither temperature nor humidity is controlled. The area is protected from direct sunshine, rain, or direct wind.

H Polution Degree 4. Pollution that generates persistent conductivity through

conductive dust, rain, or snow. Typical outdoor locations.

Pollution Degree 2 (as defined in IEC 61010-1). Note: Rated for indoor use only.

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Specifications

Installation (Overvoltage)

Category Descriptions

Overvoltage Category

Terminals on this product may have different installation (overvoltage) category designations. The installation categories are:

H Measurement Category IV. For measurements performed at the source of

low-voltage installation.

H Measurement Category III. For measurements performed in the building

installation.

H Measurement Category II. For measurements performed on circuits directly

connected to the low-voltage installation.

H Measurement Category I. For measurements performed on circuits not

directly connected to MAINS.

Overvoltage Category II (as defined in IEC 61010-1)

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Operating Information

This chapter covers installation information and basic operation instructions.

Installation

The basic operating software is already installed on the hard disk. Refer to Software Installation on page 2--5 for instructions on reinstalling the software.

Before You Start

Environmental

Considerations

Verify that all parts and accessories for the instrument are available. Use the graphical packing list that came with the oscilloscope to determine the necessary parts and accessories. Y ou should also verify that the following items are available:

H The correct power cords

H The product-software CD set that includes installation copies of the software

installed on the instrument

H All the accessories necessary to operate the instrument

The instrument is designed to operate on a bench or on a cart in the normal position (on the bottom feet). For proper cooling, at least three inches (7.62 cm) of clearance is required on both sides of the instrument, and the bottom requires the clearance provided by the instrument feet.

If you operate the instrument while it is resting on the rear feet, make sure that you properly route any cables coming out of the rear of the instrument to avoid damaging them.

CAUTION. Keep the bottom and sides of the instrument clear of obstructions to ensure proper cooling.

Tables 1--10 and 1--12 on pages 1--25 and 1--27 list the operating requirements for the instrument. Power source, temperature, humidity, and altitude are listed.

Connect the Peripherals

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

The peripheral connections are the same as those you would make on a personal computer. The connection points are shown in Figure 2--1 on page 2--3. See Table 2--1 for additional connection information.

2- 1

Operating Information

Table 2- 1: Additional accessory connection information

Item Description

Monitor If you use a non-standard monitor, you may need to change the

the display settings to achieve the proper resolution for your monitor.

Printer Connect the printer to the EPP (enhanced parallel port)

connector directly. If your printer has a DB-25 connector, use the adapter cable that came with your printer to connect to the EPP connector. For information on printer usage, see Printing Waveforms in your user instrument manual.

Rackmount Refer to the CSA7000 & TDS7000B Series Rackmount

Installation Instructions for information on installing the rackmount kit.

Other Refer to the Application release notes on your product CD set

for possible additional accessory installation information not covered in this manual.

WARNING. Before installing accessories to connectors (mouse, keyboard, etc.), power off the instrument. See Powering Off the Instrument on page 2--5.

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Description Icon/Label Locations

Mouse.................

Keyboard ................

RS-232..........

Printer.............

XVGA Out (PC only, for dual display

operation) .........

Compactdiskdrive.......

USB..................

Operating Information

Mic......... .... ....

Audio line out.............

Audio line in .............

Removable hard drive or

floppy ...................

Instrument monitor (large-screen instrument

display)...........

GPIB........

Network................

Figure 2- 1: Locations of peripheral connectors on rear panel

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Operating Information

Power On the Instrument

Follow these steps to power on the instrument.

1. Check that the line fuses are correct for your application. Both fuses must be

the same rating and type. Fuse types require a unique cap and fuseholder. See Table 2--2 and Figure 2--2.

Table 2- 2: Line fuses

Cap & fuseholder

Fuse type Rating Fuse part number

0.25 x 1.250 inch 8 A, fast blow, 250 V 159-0046-00 200-2264-00

5x20mm 6.3 A, fast blow, 250 V 159-0381-00 200-2265-00

Fuses AC powerPower switch

part number

Figure 2- 2: Line fuse and power cord connector locations, rear panel

CAUTION. Connect the keyboard, mouse, and other accessories before applying power to the product.

2. Connect the power cord.

3. If you have an external monitor, connect the power cord and power on the

monitor.

4. Turn the Power switch on at the rear panel. (See Figure 2--2 for switch

location.)

5. If the instrument does not power on, press the On/Standby switch to power

on the instrument (see Figure 2--3 for the switch location).

6. Wait for the boot routine and low-level self test to complete.

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

On/Standby

switch

Operating Information

Figure 2- 3: On/Standby switch location

Powering Off the

Instrument

Software Installation

The instrument has a built-in On/Standby function that removes power from most circuitry in the instrument when you press the On/Standby switch.

To completely remove power to the instrument, perform the shutdown just described, and then set the power switch on the rear panel to off.

This section describes how to install the system software found on the productsoftware CD that accompanies this product. The instrument ships with the product software installed, so only perform these procedures if reinstallation becomes necessary .

Software Release Notes. Read the software release notes README.TXT ASCII file on the product-software CD before performing installation procedures. This file contains additional installation and operation information that supercedes other product documentation.

To view the README.TXT file, open the Notepad Windows accessory and open the file on the product-software CD. After installation, you can also read the copy from a directory on the product:

C:\Program Files\TekScope\ReadMe.txt

Operating System Restoration. Use the procedure that accompanies your Operating System Restore CD should reinstalling system software become necessary.

The compact disc contains the files necessary to restore the Windows operating system and necessary drivers for the instrument.

The Windows operating system and drivers are factory installed on the instrument hard disk. The compact disc serves as a backup in the event that you have to rebuild the hard drive. You must restore the Windows operating system before you can install the oscilloscope firmware and other product software.

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2- 5

Operating Information

Application Installation. Use the procedures that accompany your Product Software CD should reinstalling the instrument application software become

necessary.

The compact disc contains the files necessary to restore the instrument application and other software for the instrument.

Software Lock for Upgrades. You can use the LockUpgrades utility to prevent users from installing unauthorized firmware upgrades on the instrument. This utility requires that a user enter a password before an upgrade can be installed. To use the utility, run the LockUpgrades.exe file, and follow the on-screen instructions. The LockUpgrades.exe file is in the following directory:

C:\Program Files\Tektronix\TekScope

NOTE. Using the OS Restore CD to reinstall the operating system resets the LockUpgrades utility to the default setting and allows firmware upgrades.

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Operating Information

This section covers basic operation information so that you can operate and prepare to service the instrument.

Back Up User Files

User Interface Map

You should always back up your user files on a regular basis. Use the Microsoft Backup tool to back up files stored on the hard disk. The Backup tool is located in the System Tools folder in the Accessories folder.

1. Minimize the instrument application by selecting Minimize from the File

menu.

2. Select the Windows Start button, point to Programs, Accessories, System

Tools, and then click Backup.

3. Use the Microsoft Backup tool to select your backup media and to select the

files and folders that you want to back up. Use the online help for information on using the Backup tool. You can back up to the floppy drive, or to a third-party storage device over the printer port (rear panel).

This section shows the main parts of the user interface.

The following illustration shows the instrument in the Menu bar mode. All features of the instrument can be accessed through the menus using a mouse or the touch screen.

When the instrument is in the Tool bar mode, most of the control windows can be accessed by touching buttons at the top of the display.

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Operating Information

Menu Bar: Access to data I/O,

printing, online help system, and

oscilloscope functions here

Status Bar: Display of

acquisition status, mode, and

number of acquisitions; trigger

status; date; and time

Waveform Handle: Touch and drag

to change vertical position of

waveform. Touch the handle and

change the position and scale using

the multipurpose knobs

Display: Live, reference, & math

waveforms display here, along

with cursors

Controls Status: Quick reference to

vertical, horizontal, and trigger

selections, scale, and parameters

Buttons/Menu. Touch to toggle between tool-bar and menu-bar modes

Multipurpose Knob Readouts. Adjust

parameters controlled by multipurpose knobs

Readouts: Display cursor readouts and measurement readouts in this area, selectable from the menu bar or tool bar

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Operating Information

Front Panel Controls Map

Many of the instrument functions can be controlled directly from the front panel controls or in conjunction with the touch-screen interface.

Use these buttons to start and stop acquisition or start a single

acquisition sequence. The ARM, READY, and TRIG’D lights

Turn knob to adjust waveform intensity.

Press button to turn Fast Acquisition on or off.

Use these knobs and buttons to set the trigger parameters. Push

ADVANCED to display additional trigger functions.

Press to return settings to default values.

Horizontally scale, position, delay, and set record length

Press to automatically set up the vertical, horizontal, and trigger

controls based on selected channels.

show the acquisition status.

Press to turn cursors on or off.

Press to make a hard copy.

(resolution) of selected waveform.

Turn the multipurpose knobs to adjust parameters selected from

the screen interface. Press a Fine button to toggle between

normal and fine adjustment with its multipurpose knob.

Press to turn the touch screen on and off.

Press ZOOM to add a magnified graticule to the display. Press

Turn channel displays on and off. Adjust the vertical scale and

HORIZ or VERT to select the axis to magnify.

position.

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Operating Information

Front Panel I/O Map

Probe compensation

output

Recovered clock output

Recovered data output

O/E converter electrical output

The following illustration shows the input/output connectors and floppy disk drive location.

CSA7000B Series

Floppy disk drive

Ground terminal

Optical input

Channel

inputs

Probe compensation

output

Auxiliary trigger input

TDS7000B Series

Auxiliary trigger output

CH 3 SIGNAL

OUTPUT; scale and

offset controlled by

CH3 controls

Floppy disk drive

Ground terminal

Channel

inputs

2- 10

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Operating Information

Instrument Diagnostics

Signal Path Compensation

Do the following steps to verify the instrument passes the internal diagnostics.

1. Display the diagnostics menu:

H If the oscilloscope is in tool bar mode, touch the MENU button to put

the instrument into the menu bar mode.

H Select Instrument Diagnostics . . . from the Utilities menu.

2. Run the diagnostics.

H First disconnect any input signals from all four channels.

H Touch the Run button in the diagnostics control window.

3. Wait for the diagnostics to complete.

The internal diagnostics do an exhaustive verification of proper oscilloscope function. This verification may take several minutes to complete. When the verification is finished, the resulting status will appear in the diagnostics control window.

4. Verify that no failures are found.

Run the Signal Path Compensation.

Using the Online Help

1. Select Instrument Calibration . . . from the Utilities menu.

2. Verify that the instrument has had a twenty-minute warm-up before

continuing.

3. Touch the Calibrate button to start the routine.

4. Wait for the test to complete (the test may take several minutes to complete).

5. Verify that the word Pass appears under the Status label in the control

window.

The user manual represents only part of the assistance available to you — the online help system, integrated as part of the instrument user interface, provides quick-to-access support for operating this instrument.

Two types of online help are available, the instrument online help and the GPIB online programmer’s help. The instrument online help provides information on all of the instrument controls and procedures for doing typical tasks. The GPIB online programmer’s help is normally installed on a remote PC and provides information for controlling the instrument via the GPIB. This section mainly discusses the online help for the instrument.

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Operating Information

Accessing Help in the Tool Bar Mode. When the instrument is in the tool bar mode, touch the Help button in the upper right corner of the screen to display help on whatever control window is displayed. From within the Help window, you can access other help through tabs, links, or buttons. You can also touch the Help Topics button to display the standard Windows Contents, Index, and Find tabs.

Accessing Help in the Menu Bar Mode. When the instrument is in the menu bar mode, you can access the help system from the drop-down help menu. Select Help on Window to display help on the current control window. Select Contents and Index to display the standard Windows Contents, Index, and Find tabs. You can also select other topics from the Help menu such as information on Technical Support or product specifications.

Moving the Help Topics to View the Instrument Display. You may temporarily move any displayed help out of the way while you change control window settings. Touch the Minimize button in the help window to shrink the help window to a button that displays in the upper right corner of the display (with the label Restore Help). Touch the Restore Help button to restore the help window to its normal size.

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Theory of Operation

This section describes the electrical operation of the instrument. Figure 9--1 on page 9--2 shows the module interconnections.

Logic Conventions

The instrument contains many digital logic circuits. This manual refers to these circuits with standard logic symbols and terms. Unless otherwise stated, all logic functions are described using the positive-logic convention: the more positive of the two logic levels is the high (1) state, and the more negative level is the low (0) state. Signal states may also be described as “true” meaning their active state or “false” meaning their nonactive state. The specific voltages that constitute a high or low state vary among the electronic devices.

Module Overviews

Module overviews describes the basic operation of each functional circuit block asshowninFigure9--1onpage9--2.

Input Signal Path

A dual-processor system controls the instrument. The instrument features an XGA resolution flat-panel display, a transparent touch screen, and a front-panel with direct access to commonly used instrument functions. You can also use the instrument with a mouse pointing device or keyboard.

A signal enters the instrument through a direct coaxial connection to the input connector, or a probe connected to the front panel.

Acquisition Board. The acquisition board conditions the input signals, samples them, converts them to digital signals, and controls the acquisition process under direction of the processor system. The acquisition system includes the multisource trigger, acquisition timebase, and acquisition mode generation and control circuitry. The acquisition board is located in the bottom compartment of the instrument. Four vertical channels are accommodated. All channels feature a TekConnect interface for additional front-end signal conditioning functions.

O/E Converter Board. The optical-to-electrical converter (CSA7000B Series only) board converts optical signals at its input to electrical signals. The electrical signals are connected to the CH1 input using an adapter.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

3- 1

Theory of Operation

Processor System. The processor system contains two processor boards with microprocessors that control the entire instrument. The basic configuration supports four input channels labeled Ch1 through Ch 4, provides an external trigger input, a trigger output, a Ch3 signal output, and a probe compensation output.

Each acquisition channel is equipped with a processor that uses its own host interface to interface to the GCS which in turn communicates with the command interface processor over the multiplexed address/data nibble bus.

Display Panel

Front Panel

Waveforms and menus are displayed on a color, active-matrix LCD display with touch panel.

Display System. Text and waveforms are processed by different parts of the display circuitry. The display system (display adapter board and inverter board) sends the text and waveform information to the display panel.

Touch Panel. The display board sends information from the touch panel to the processor. Any changes in settings are reported to the processor system.

The ATX board reads the front-panel switches and encoders. Any changes in their settings are reported to the processor system. The ATX board also turns the LEDs on and off.

Menu Switches. Front-panel menu switches are also read by the ATX board. The touch screen processor sends any changes in menu selections to the ATX processor system. The ON/STBY switch passes through the CPU board to the ATX board. The ATX board creates the signal sent to the power supply to toggle power.

3- 2

Floppy Drive. The floppy drive provides access to stored waveform data and

software to customize your instrument.

CPU Board. The CPU board provides fast access to the Acquisition board and the display system. The ATX board reads the front-panel switches and encoders and implements any changes requested by their settings. The CPU board provides a GPIB interface through a rear panel connector.

ATX Board. The ATX board provides standard Windows functionality and I/O port interfaces to the rear panel.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Theory of Operation

Bridge Board. Both processor systems and the display system are connected together by, and communicate through, the bridge board.

Rear Panel

Low Voltage Power Supply

The hard drive and CD provide access to stored waveform data and software to customize your instrument with your measurement needs. The GPIB allows for external control of the instrument.

You can make hardcopies on the GPIB, RS-232, and Centronics ports. Another port from the CPU board: cal adjust lock.

The ATX board has two USB ports and one serial port on the rear panel. The ATX has 2 USB channels, but one is used internally and is not available for use. The ATX has one serial port, which is routed to the rear panel. A microphone input and earphone output exist on the ATX rear panel. Ethernet connector is RJ-45. Keyboard and mouse are both PS/2.

The low voltage power supply is a switching power converter with active power factor control. It supplies power to all of the circuitry in the instrument.

The principal POWER switch, located on the rear panel, controls all power to the instrument including the Low Voltage Power Supply. The ON/STBY switch, located on the front panel, also controls all of the power to the instrument except for part of the circuitry in the standby power supply.

The power supply sends a power fail (~PF) warning to the processor system if the power is going down.

Fans

Power is distributed throughout the instrument through the front and rear power distribution bus boards.

The fan assembly provides forced air cooling for the instrument. The fans are controlled by the CPU and microprocessor.

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Theory of Operation

3- 4

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Performance Verification

Two types of Performance Verification procedures can be performed on this product: Brief Procedures and Performance Tests. You may not need to perform all of these procedures, depending on what you want to accomplish.

H To rapidly confirm that the instrument functions and was adjusted properly,

just do the brief procedures under Self Tests, which begin on page 4--5.

Advantages. These procedures are quick to do, require no external equipment or signal sources, and perform extensive functional and accuracy testing to provide high confidence that the instrument will perform properly. They can be used as a quick check before making a series of important measurements.

H To further check functionality, first do the Self Tests just mentioned; then do

the brief procedures under Functional Tests that begin on page 4--6.

Advantages. These procedures require minimal additional time to perform, require no additional equipment other than a BNC cable and BNC-to-SMA adapter or a TCA-BNC adapter, and these procedures more completely test the internal hardware of the instrument. They can be used to quickly determine if the instrument is suitable for putting into service, such as when it is first received.

H If more extensive confirmation of performance is desired, do the Perform-

ance Tests, beginning on page 4--17, after doing the Functional and Self Tests

mentioned above.

Advantages. These procedures add direct checking of the warranted specifications that are marked with the n symbol. These procedures require specific test equipment. (See Table 4--2: Test equipment on page 4--18).

If you are not familiar with operating this instrument, read the instrument reference or user manuals or explore the online help.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

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Performance Verification

Conventions

Throughout these procedures the following conventions apply:

H Each test procedure uses the following general format:

Title of Test

Equipment Required

Prerequisites

Procedure

H Each procedure consists of as many steps, substeps, and subparts as required

to do the test. Steps, substeps, and subparts are sequenced as follows:

1. First Step

a. First Substep

H First Subpart

H Second Subpart

b. Second Substep

2. Second Step

H In steps and substeps, the lead-in statement in italics instructs you what to

do, while the instructions that follow tell you how to do it, as in the example step below:

Initialize the instrument: Push the front-panel DEFAULT SETUP button.

STOP.TheSTOP notation at the left is accompanied by information you must read to do the procedure properly.

H The term “toolbar” refers to a row of buttons at the top of the display. The

term “menu bar” refers to a row of menus at the top of the display. You can switch between toolbar and menu bar operating modes by pushing the button near the top right corner of the display. See Figure 4--1.

4- 2

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Toolbar

Menu bar

Click here to change to

Figure 4- 1: Toolbar and menu bar (CSA7000B Ser ies shown)

H The procedures assume you have connected a mouse to the instrument so

you can click on the screen controls. If you have not connected a mouse, you can use the touch screen to operate all the screen controls.

Performance Verification

Click here to change to

menu bar mode

toolbar mode

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

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Performance Verification

4- 4

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Brief Procedures

Self Tests

The Self Tests use internal routines to confirm basic functionality and proper adjustment. No test equipment is required to do these test procedures.

The Functional Tests utilize the probe-compensation output at the front panel as a test-signal source for further verifying that the instrument functions properly. A BNC cable and a BNC-to-SMA adaptor or a TCA-BNC adapter are required to do these test procedures.

This procedure uses internal routines to verify that the instrument functions and was adjusted properly. No test equipment or hookups are required.

Verify Internal Adjustment,

Self Compensation, and

Diagnostics

Equipment required

Prerequisites Power on the instrument and allow a 20 minute warm-up before doing

1. Verify that internal diagnostics pass: Do the following substeps to verify

passing of internal diagnostics.

a. Display the System diagnostics menu:

H If the instrument is in toolbar mode, click the MENU button to put

the instrument into menu bar mode.

H Pull down the Utilities menu and select Instrument Diagnos-

tics.... This displays the diagnostics control window.

b. Run the System Diagnostics:

H First disconnect any input signals from all four channels.

H Click the Run button in the diagnostics control window.

c. Wait: The internal diagnostics do an exhaustive verification of proper

instrument function. This verification may take several minutes. When the verification is finished, the resulting status will appear in the diagnostics control window.

None

this procedure.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

4- 5

Brief Procedures

NOTE. If diagnostic error message 512 is displayed, run signal-path compensation and then rerun Instrument Diagnostics.

d. Verify that no failures are found and reported on-screen. All tests should

pass.

e. Run the signal-path compensation routine:

H Pull down the Utilities menu and select Instrument Calibra-

tion.... This displays the instrument calibration control window.

H If required because the instrument is in service mode, select the

Signal Path button under Calibration Area.

H Click the Calibrate button to start the routine.

f. Wait: Signal-path compensation may take five to fifteen minutes to run.

g. Confirm signal-path compensation returns passed status: Verify that the

word Pass appears in the instrument calibration control window.

Functional Tests

2. Return to regular service: Click the Close button to exit the instrument

calibration control window.

The purpose of these procedures is to confirm that the instrument functions properly. The only equipment required is a P7240 probe (P7260 probe with TDS7704B), a probe calibration and deskew fixture, a BNC cable, BNC-to-SMA adapter or TCA-BNC adapter, and, to check the file system, a 3.5 inch,

1.44 Mbyte, formatted floppy disk.

STOP. These procedures verify functions; that is, they verify that the instrument features operate. They do not verify that they operate within limits.

Therefore, when the instructions in the functional tests that follow call for you to verify that a signal appears on-screen “that is about five divisions in amplitude” or “has a period of about six horizontal divisions,” etc., do NOT interpret the quantities given as limits. Operation within limits is checked in Performance Tests, which begin on page 4--17.

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Brief Procedures

STOP. DO NOT make changes to the front-panel settings that are not called out in the procedures. Each verification procedure will require you to set the instrument to certain default settings before verifying functions. If you make changes to these settings, other than those called out in the procedure, you may obtain invalid results. In this case, just redo the procedure from step 1.

When you are instructed to press a front-panel or screen button, the button may already be selected (its label will be highlighted). If this is the case, it is not necessary to press the button.

Verify All Input Channels

Equipment required

Prerequisites None

One P7240 probe (P7260 probe for TDS7704B)

One 067-0405-xx (067-0484-xx for TDS7704B) probe calibration and deskew fixture

One BNC cable, such as Tektronix part number 012-0076-xx or the cable that came with the deskew fixture (012-0208-xx)

1. Initialize the instrument:Push the front-panel DEFAULT SETUP button.

2. Hook up the signal source: Connect the equipment as shown in Figure 4--2

to the channel input you want to test (beginning with CH 1).

NOTE. If a probe is not available, connect the probe compensation output to the channel input using a BNC cable and adapters.

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4- 7

Brief Procedures

NOTE. If a probe is not

available, connect the probe

compensation output to the

channel input using a BNC

cable and adapters.

BNC cable from the

PROBE COMPENSATION

output to the GAIN CAL SIG input on the fixture.

BNC cable from PROBE

COMPENSATION output to

the A input of the Probe

Calibration and Deskew

TDS7704B

Fixture

CSA7404B, TDS7404B, TDS7254B, & TDS7154B

Connect the probe tip to

probe ground to the long

067-0405-xx

NOTE. If a probe is not

available, connect the probe

067-0484-xx

Remove

the jumper

compensation output to the

channel input using a BNC

cable and adapters.

the short pin and the

pin as shown.

4- 8

GAIN CAL connections

Figure 4- 2: Universal test hookup for functional tests - CH 1 shown

3. Turn off all channels:If any of the front-panel channel buttons are lighted,

push those buttons to turn off the displayed channels. See Figure 4--3.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Brief Procedures

Channel buttons

Figure 4- 3: Channel button location

4. Select the channel to test: Push the channel button for the channel you are

currently testing. The button lights and the channel display comes on.

5. Set up the instrument:

H Push the front panel AUTOSET button. This sets the horizontal and

vertical scale and vertical offset for a usable display and sets the trigger source to the channel you are testing.

H Pull down the Vert menu, select Vertical Setup, and then touch Offset.

Confirm that the Ch1 Offset is about --0.18 to --0.54 V, depending on the probe used (0.0 V if not using a probe).

6. Verify that the channel is operational: Confirm that the following statements

are true.

H Verify that the vertical scale readout and the waveform amplitude for the

channel under test are as shown in Table 4--1.

Table 4- 1: Vertical settings

CSA7404B, TDS7404B, TDS7254B, TDS7154B, & TDS7704B

Setting

Scale 200 mV 200 mV

Waveform amplitude 5.2 divisions --2.5 divisions

With P7240 or P7260

Without probe

H The front-panel vertical POSITION knob (for the channel you are

testing) moves the signal up and down the screen when rotated.

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Brief Procedures

H Turning the vertical SCALE knob counterclockwise (for the channel you

are testing) decreases the amplitude of the waveform on-screen, turning the knob clockwise increases the amplitude, and returning the knob to the original scale setting returns the amplitude to that shown in Table 4--1 for that scale setting.

7. Verify that the channel acquires in all acquisition modes: Pull down the

Horiz/Acq menu to select Horizontal/Acquisition Setup. . . . Click the

Acquisition tab in the control window that displays. Click each of the

acquisition modes and confirm that the following statements are true.

H Sample mode displays an actively acquiring waveform on-screen. (Note

that there is a small amount of noise present on the square wave).

H Peak Detect mode displays an actively acquiring waveform on-screen

with the noise present in Sample mode “peak detected.”

H Hi Res mode displays an actively acquiring waveform on-screen with the

noise that was present in Sample mode reduced.

Verify the Time Base

H Average mode displays an actively acquiring waveform on-screen with

the noise reduced.

H Envelope mode displays an actively acquiring waveform on-screen with

the noise displayed.

H Waveform Database mode displays an actively acquiring waveform

on-screen with the noise displayed.

8. Test all channels: Repeat steps 2 through 7 until all four input channels are verified.

9. Remove the test hookup: Disconnect the equipment from the channel input and the probe compensation output.

Equipment required

Prerequisites None

One BNC cable, such as Tektronix part number 012-0076-00

One TCA-BNC adapter

1. Initialize the instrument:Push the front-panel DEFAULT SETUP button.

2. Hook up the signal source: Connect the BNC cable from the probe com-

pensation output to the CH 1 input through a TCA-BNC adapter as shown in Figure 4--4.

4- 10

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Brief Procedures

Instrument under test

BNC cable from PROBE COMPENSATION output to CH 1 input

Figure 4- 4: Setup for time base test

3. Set up the instrument: Push the front panel AUTOSET button.

4. Pull down the Vert menu, select Vertical Setup, and then touch Offset. Adjust the Ch1 Offset to --0.25 V using the multipurpose knob.

5. Set the Vertical SCALE to 100 mV per division.

6. Set the time base: Set the horizontal SCALE to 200 s/div. The time-base

readout is displayed at the bottom of the graticule.

7. Verify that the time base operates: Confirm the following statements.

H One period of the square-wave probe-compensation signal is about five

horizontal divisions on-screen for the 200 s/div horizontal scale setting.

H Rotating the horizontal SCALE knob clockwise expands the waveform

on-screen (more horizontal divisions per waveform period), counterclockwise rotation contracts it, and returning the horizontal scale to 200 s/div returns the period to about five divisions.

H The horizontal POSITION knob positions the signal left and right

on-screen when rotated.

8. Verify horizontal delay:

a. Center a rising edge on screen:

H Set the horizontal POSITION knob so that the rising edge where the

waveform is triggered is lined up with the center horizontal graticule.

H Change the horizontal SCALE to 20 s/div. The rising edge of the

waveform should remain near the center graticule and the falling edge should be off screen.

b. Turn on and set horizontal delay:

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Brief Procedures

H Pull down the Horiz/Acq menu to select Horizontal/Acquisition

Setup. . . .

H Click the Horizontal tab in the control window that displays.

H Click the Delay Mode button to turn delay on.

H Double click the Horiz Delay control in the control window to

display the pop-up keypad. Click the keypad buttons to set the horizontal delay to 1 ms andthenclicktheENTER key.

c. Verify the waveform: Verify that a rising edge of the waveform is within

a few divisions of center screen.

d. Adjust the horizontal delay: Rotate the upper multipurpose knob to

change the horizontal delay setting. Verify that the rising edge shifts horizontally. Rotate the front-panel horizontal POSITION knob. Verify that this knob has the same effect (it also adjusts delay, but only when delay mode is on).

e. Verify the delay toggle function:

Verify the A (Main) and B

(Delayed) Trigger Systems

H Rotate the front-panel horizontal POSITION knob to center the

falling edge horizontally on the screen.

H Change the horizontal SCALE to 40 ns/div. The rising edge of the

waveform should remain near the center graticule.

H Readjust the delay setting to position the rising edge 2 divisions to

the right of the center graticule line.

H Push the front-panel DELAY button several times to toggle delay off

and on and back off again. Verify that the display switches quickly between two different points in time (the rising edge shifts horizontally on the display).

9. Remove the test hookup: Disconnect the BNC cable from the channel input

and the probe compensation output.

Equipment required

Prerequisites None

One BNC cable, such as Tektronix part number 012-0076-00

One TCA-BNC adapter

1. Initialize the instrument: Push the front-panel DEFAULT SETUP button.

4- 12

2. Hook up the signal source: Connect the BNC cable from the probe com-

pensation output to the CH 1 input through a TCA-BNC adapter as shown in Figure 4--5.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Brief Procedures

Instrument under test

BNC cable from PROBE COMPENSATION output to CH 1 input

Figure 4- 5: Setup for trigger test

3. Set up the instrument: Push the front-panel AUTOSET button.

4. Pull down the Vert menu, select Vertical Setup, and then touch Offset. Adjust the Ch1 Offset to --0.25 V using the multipurpose knob.

5. Set the Vertical SCALE to 100 mV per division.

6. Verify that the main trigger system operates: Confirm that the following

statements are true.

H The trigger level readout for the A (main) trigger system changes with

the trigger-LEVEL knob.

H The trigger-LEVEL knob can trigger and untrigger the square-wave

signal as you rotate it. (Leave the signal untriggered).

H Pushing the front-panel trigger LEVEL knob sets the trigger level to the

50% amplitude point of the signal and triggers the signal that you just left untriggered. (Leave the signal triggered.)

7. Verify that the delayed trigger system operates:

a. Set up the delayed trigger:

H Pull down the Trig menu and select A — B Trigger Sequence. . . .

This displays the A→B Sequence tab of the trigger setup control window.

H Click the Trig After Time button under A Then B.

H Click the B Trig Level control in the control window.

H Set the front-panel trigger mode to NORM.

b. Confirm that the following statements are true:

H The trigger-level readout for the B trigger system changes as you

turn the lower multipurpose knob.

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Brief Procedures

H As you rotate the lower multipurpose knob, the square-wave

probe-compensation signal can become triggered and untriggered. (Leave the signal triggered.)

c. Verify the delayed trigger counter:

H Double click the Trig Delay control to pop up a numeric keypad for

that control.

H Click the keypad to enter a trigger delay time of 1 second and then

click Enter.

H Verify that the trigger READY indicator on the front panel flashes

about once every second as the waveform is updated on-screen.

8. Remove the test hookup: Disconnect the BNC cable from the channel input

and the probe compensation output.

Verify the File System

Equipment required

Prerequisites None

One BNC cable, such as Tektronix part number 012-0076-00

One TCA-BNC adapter

One 1.44 Mbyte, 3.5 inch DOS-compatible formatted disk.

1. Initialize the instrument:Push the front-panel DEFAULT SETUP button.

2. Hook up the signal source: Connect the BNC cable from the probe com-

pensation output to the CH 1 input through a TCA-BNC adapter as shown in Figure 4--6.

Instrument under test

BNC cable from PROBE COMPENSATION output to CH 1 input

4- 14

Figure 4- 6: Setup for the file system test

3. Insert the test disk: Insert the floppy disk in the floppy disk drive.

4. Set up the instrument: Push the front panel AUTOSET button.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Brief Procedures

5. Pull down the Vert menu, select Vertical Setup, and then touch Offset. Adjust the Ch1 Offset to --0.25 V using the multipurpose knob.

6. Set the Vertical SCALE to 100 mV per division.

7. Set the time base: Set the horizontal SCALE to 1ms/div. The time-base

readout is displayed at the bottom of the graticule.

8. Save the settings:

a. Pull down the File menu to select Instrument Setup. . . . This displays

the instrument setups control window.

b. Click the Save button under Save settings to file in the control window.

This displays a familiar Windows dialog box for choosing a destination folder naming the file.

c. In the Save Instrument Setups As dialog box, select the 3

/2Floppy (A:)

icon in the Save in: drop-down list to set the save destination to the floppy disk.

d. Note the default file name and then click the Save buttontosavethe

setup to the default file name.

9. Change the settings again: Set the horizontal SCALE to 200 s/div.

10. Verify the file system works:

a. Click the Recall Setups tab in the control window.

b. Click the Recall button under Recall settings from file in the control

window. This displays a familiar Windows dialog box for locating the settings file that you want to recall.

c. In the Recall Instrument Setup dialog box, select the 3

/2Floppy (A:)

icon in the Look in: drop-down list.

d. Locate and then double click in the dialog box on the setup file that you

previously stored.

e. Verify that the instrument retrieved the saved setup from the disk. Do

this by noticing the horizontal SCALE is again 1 ms and the waveform shows ten cycles just as it did when you saved the setup.

11. Remove the test hookup:

a. Disconnect the BNC cable and adapter from the channel input and the

probe compensation output.

b. Remove the floppy disk from the floppy disk drive.

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

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Brief Procedures

4- 16

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Performance Tests

This section contains a collection of manual procedures for checking that instrument performs as warranted.

The procedures are arranged in logical groupings: Signal Acquisition System

Checks, Time Base System Checks, Triggering System Checks, Output Ports Checks, Serial Trigger Checks, and Optical-to-Electrical Converter Checks. They check all the characteristics that are designated as checked in Specifications. (The characteristics that are checked appear with a n in Specifications).

STOP. These procedures extend the confidence level provided by the basic procedures described on page 4--5. The basic procedures should be done first, then these procedures performed if desired.

Prerequisites

The tests in this section comprise an extensive, valid confirmation of performance and functionality when the following requirements are met:

H The cabinet must be installed on the instrument.

H You must have performed and passed the procedures under Self Tests, found

on page 4--5, and those under Functional Tests, found on page 4--6.

H A signal-path compensation must have been done within the recommended

calibration interval and at a temperature within ±5 _C of the present operating temperature. (If at the time you did the prerequisite Self Tests, the temperature was within the limits just stated, consider this prerequisite met). A signal-path compensation must have been done at an ambient humidity within 25% of the current ambient humidity and after having been at that humidity for at least 4 hours.

H The instrument must have been last adjusted at an ambient temperature

between +20 _C and +30 _C, must have been operating for a warm-up period of at least 20 minutes, and must be operating at an ambient temperature as listed in Table 1--12. (The warm-up requirement is usually met in the course of meeting the Self Tests and Functional Tests prerequisites listed above).

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

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Performance Tests

Equipment Required

Table 4- 2: Test equipment

Item number and description

Procedures starting on page 4--45, use external, traceable signal sources to directly check warranted characteristics. Table 4--2 lists the required equipment.

Minimum requirements Example Purpose

1. Attenuator,10X (two required)

2. Attenuator, 5X Ratio: 5X; impedance 50 Ω; connec-

3. Termination, 50 Ω (three required)

4. Cable, Precision 50 Ω Coaxial (three required)

5. Connector, Dual-Banana (two required)

6. Connector, BNC “T” Male BNC-to-dual female BNC Tektronix part number

7. Probe A P7240 probe

Ratio: 10X; impedance 50 Ω; connectors: female input, male output

tors: female input, male output

Impedance 50 Ω; connectors: female BNC input, male BNC output

50 Ω, 36 in, male-to-male BNC connectors

Female BNC-to-dual banana Tektronix part number

A P7260 probe (TDS7704B)

BNC ≤2GHz Tektronix part number 011-0059-02

SMA ≤18 GHz Tektronix part number 015-1003-00

BNC ≤2GHz Tektronix part number 011-0060-02

SMA ≤18 GHz Tektronix part number 015-1002-01

Tektronix part number 011-0049-02

Tektronix part number 012-0482-00

103-0090-00

103-0030-00

Tektronix part number P7240 Tektronix part number P7260 (TDS7704B)

Signal attenuation

Signal termination for channel delay test

Signal interconnection

Various accuracy tests

Checking trigger sensitivity

Signal interconnection

8. Floppy disk 3.5 inch 1.44 Mbyte, DOS-compatible

floppy disk

9. Generator, DC Calibration

10. Generator, Calibration 500 mV square wave calibrator

11. Timer-counter 25 MHz, 1 s gate Advantest R5360 Checking long--term sample

4- 18

Variable amplitude to ±7 V; accuracy to 0.1%

amplitude; accuracy to 0.25%

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Standard IBM PC-compatible disk

Fluke 9500B

Checking file system basic functionality

Checking DC offset, gain, measurement accuracy, and maximum input voltage

To check accuracy of signal out

rate and delay time accuracy

Table 4- 2: Test equipment (Cont.)

Item number and description

Performance Tests

PurposeExampleMinimum requirements

12. Generator, Sine-Wave3Instrument bandwidth ≤6 GHz: 5 kHz to at least the instrument

Rohde & Schwarz SMT06

with options 01 and 02 bandwidth. Variable amplitude from 60mVto2V

into 50 Ω. Frequency

p-p

error <2.0%

Instrument bandwidth >6 GHz: 10 MHz to at least the instrument bandwidth. Variable amplitude from 60 mV to 1.8 V

into 50 Ω. Frequen-

p-p

Anritsu MG3692A Synthe-

sized CW Generator with

options 2x, 4, and 15

cy error <2.0%

13. Meter, Level and Power Sensor

14. Split ter, Power Frequency range: DC to 4 GHz.

Frequency range: 10 MHz to the instrument bandwidth. Amplitude range: 6 mV

p-p

to2V

p-p

Tracking: >2.0%

Rohde & Schwarz NRVS and NRV-Z102

Tektronix part number 015-0565-00

15. Adapter (four required) Male N-to-female BNC Tektronix part number

103-0045-00

16. Adapter Female N-to-male BNC Tektronix part number

103-0058-00

17. Adapter (three required) SMA female-to-female Tekt ronix part number

015-1012-00

18. Adapter (three required) SMA male-to-female BNC Tektronix part number

015-1018-00

19. Adapter (four required)

SMA male-to-BNC female TCA-BNC or TCA-SMA and

SMA male-to-BNC female adapter (Tektronix part number 015-0554-00 or 015-1018-00)

20. Pulse Generator 2 MHz, ≤150 ps rise time, 5 V out Fluke 9500B

21. Cable, Coaxial (two required)

50 Ω, 20 in, male-to-male SMA connectors

Tektronix part number 174-1427-00

1,2

22. Adapter SMA “T”, male to 2 SMA female Tektronix part number

015-1016-00

23. Adapter SMA female to BNC male Tektronix part number

015-0572-00

24. Adapter BNC male to female elbow Tektronix part number

103-0031-00

25. Termination (two required)

Short circuit, SMA connector, female Tektronix part number

015-1021-00

Checking analog bandwidth, trigger sensitivity, samplerate, external clock, and delay-time accuracy

Checking analog bandwidth and Trigger Sensitivity

Checking delay between channels

Checking analog bandwidth

Checking the delay between channels

Signal interconnection

Used to test delta time measurement accuracy

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Performance Tests

Table 4- 2: Test equipment (Cont.)

Item number and description

PurposeExampleMinimum requirements

26. Attenuator, 2X Ratio: 2X; impedance 50 Ω; connectors: female BNC input, male BNC output

Tektronix part number 011-0069-02

Used to test delta time measurement accuracy and pulse trigger accuracy

27. Digit al Multimeter Ohms: <60 Ohms Keithley 2000 Checking input impedance

28. Optical Impulser 1550 nm impulse IMRA Femtolite B-4-FC

Optical Tests

Optical Impulser

29. CW laser source 780 nm, 850 nm , 1310 nm, and 1550 nm

JDS Uniphase 420B laser transmitter and Rifocs 716R

Optical tests

with 702RT8.5 controller

30. Optical attenuator, vari-

able

31. Optical power meter 780 nm, 850 nm, 1310 nm, and

Multimode input and output, 0 to 60 dB

1550 nm

Tektronix OA5022 Optical Attenuator

Agilent 8163A with 81618A optical head interface,

Optical tests

81625B InGaAs optical head and 81000FA FC/PC/SPC/ APC connector adapter

32. Adapter O/E electrical out to CH1 input Tektronix part number

Used to test O/E converter

013-0327-00

33. Adapter O/E electrical out to SMA Tektronix part number

Used to test O/E converter

013-0326-00

34. Cable, fiber-optic

(two required)

35. Attenuator, optical 30mm, 10 dB, FC to FC, female to

36. Cable, coaxial 50 Ω, 39.37 in (1.0m), male-to-male

multimode, 2 m, FC/PC to FC/PC Tektronix part number

174-2322-00

Tektronix part number

male

119-5118-00

Tektronix part number

SMA connectors

174-1341-00

Tektronix part number 174-1910-00

Tektronix part number 119-5118-00

Checking analog bandwidth

50 Ω, 60 in (1.5m), male-to-male SMA connectors

Tektronix part number 174-1428-00

37. Termination 50 Ω, coaxial termination, K male Anritsu-Wiltron 28K50 Anritsu-Wiltron 28K50

38. Dust cap No l ight transmission Dust cap provided with optical

input

39. Probe calibration and

deskew fixture

Standard accessory Tektronix part number

067-0405-xx (067-0848-xx for

Dark level calibration and optical noise check

Functional tests

TDS7704B)

Fluke 9500B/1100, 9500B/3200, or 9500B/2200 and an output head (9510, 9530, or 9560) appropriate for the bandwidth of the instrument being tested.

For Delta Time Measurement Accuracy, use a Fluke 9500B or a pulse generator with a rise time as shown in Table 4- 9 on page 4- 98.

On Instruments with a bandwidth ≤3 GHz, items 12, 13, and 14 may be replaced with a Fluke 9500B and an appropriate output head.

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Performance Tests

CSA7000B & TDS7000B Test Record

Photocopy this table and use it to record the performance test results for your instrument.

CSA7000B & TDS7000B Test Record

Instrument Serial Number: Certificate Number: Temperature: RH %: Date of Calibration: Technician:

Instrument performance test Minimum Incoming Outgoing Maximum

DC voltage measurement accuracy (averaged), CSA7404B, TDS7404B, TDS7254B, & TDS7154B

CH1 2 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH1 2 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH1 50 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH1 50 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH1 100 mV Vert scale setting,

--5 Div position sett ing, +4.8 V offset

CH1 100 mV Vert scale setting,

+5 Div position setting, --4.8 V offset

CH1 1.0 V Vert scale setting,

--5 Div position sett ing, +2.5 V offset

CH1 1.0 V Vert scale setting,

+5 Div position setting, --2.5 V offset

CH2 2 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH2 2 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH2 50 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH2 50 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH2 100 mV Vert scale setting,

--5 Div position sett ing, +4.8 V offset

CH2 100 mV Vert scale setting,

+5 Div position setting, --4.8 V offset

CH2 1.0 V Vert scale setting,

--5 Div position sett ing, +2.5 V offset

CH3 1.0 V Vert scale setting,

+5 Div position setting, --2.5 V offset

+ 512.79 mV __________ __________ + 519.21 mV

-- 519.21 mV __________ __________ -- 512.79 mV

+ 881.63 mV __________ __________ + 918.38 mV

-- 918.38 V __________ __________ -- 881.63 mV

+ 4.9393 V __________ __________ + 5.0607 V

-- 5.0607 V __________ __________ -- 4.9393 V

+ 4.1738 V __________ __________ + 4.8263 V

-- 4.8263 V __________ __________ -- 4.1738 V

+ 512.79 mV __________ __________ + 519.21 mV

-- 519.21 mV __________ __________ -- 512.79 mV

+ 881.63 mV __________ __________ + 918.38 mV

-- 918.38 V __________ __________ -- 881.63 mV

+ 4.9393 V __________ __________ + 5.0607 V

-- 5.0607 V __________ __________ -- 4.9393 V

+ 4.1738 V __________ __________ + 4.8263 V

-- 4.8263 V __________ __________ -- 4.1738 V

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

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Performance Tests

CSA7000B & TDS7000B Test Record (cont.)

Instrument Serial Number: Certificate Number: Temperature: RH %: Date of Calibration: Technician:

Instrument performance test MaximumOutgoingIncomingMinimum

CH3 2 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH3 2 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH3 50 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH3 50 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH3 100 mV Vert scale setting,

--5 Div position sett ing, +4.8 V offset

CH3 100 mV Vert scale setting,

+5 Div position setting, --4.8 V offset

CH3 1.0 V Vert scale setting,

--5 Div position sett ing, +2.5 V offset

CH3 1.0 V Vert scale setting,

+5 Div position setting, --2.5 V offset

CH4 2 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH4 2 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH4 50 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH4 50 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH4 100 mV Vert scale setting,

--5 Div position sett ing, +4.8 V offset

CH4 100 mV Vert scale setting,

+5 Div position setting, --4.8 V offset

CH4 1.0 V Vert scale setting,

--5 Div position sett ing, +2.5 V offset

CH4 1.0 V Vert scale setting,

+5 Div position setting, --2.5 V offset

+ 512.79 mV __________ __________ + 519.21 mV

-- 519.21 mV __________ __________ -- 512.79 mV

+ 881.63 mV __________ __________ + 918.38 mV

-- 918.38 V __________ __________ -- 881.63 mV

+ 4.9393 V __________ __________ + 5.0607 V

-- 5.0607 V __________ __________ -- 4.9393 V

+ 4.1738 V __________ __________ + 4.8263 V

-- 4.8263 V __________ __________ -- 4.1738 V

+ 512.79 mV __________ __________ + 519.21 mV

-- 519.21 mV __________ __________ -- 512.79 mV

+ 881.63 mV __________ __________ + 918.38 mV

-- 918.38 V __________ __________ -- 881.63 mV

+ 4.9393 V __________ __________ + 5.0607 V

-- 5.0607 V __________ __________ -- 4.9393 V

+ 4.1738 V __________ __________ + 4.8263 V

-- 4.8263 V __________ __________ -- 4.1738 V

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

CSA7000B & TDS7000B Test Record (cont.)

Instrument Serial Number: Certificate Number: Temperature: RH %: Date of Calibration: Technician:

Instrument performance test MaximumOutgoingIncomingMinimum

DC voltage measurement accuracy (averaged), TDS7704B

CH1 2 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH1 2 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH1 50 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH1 50 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH1 100 mV Vert scale setting,

--5 Div position sett ing, +4.8 V offset

CH1 100 mV Vert scale setting,

+5 Div position setting, --4.8 V offset

CH1 1.0 V Vert scale setting,

--5 Div position sett ing, +2.5 V offset

CH1 1.0 V Vert scale setting,

+5 Div position setting, --2.5 V offset

CH2 2 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH2 2 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH2 50 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH2 50 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH2 100 mV Vert scale setting,

--5 Div position sett ing, +4.8 V offset

CH2 100 mV Vert scale setting,

+5 Div position setting, --4.8 V offset

CH2 1.0 V Vert scale setting,

--5 Div position sett ing, +2.5 V offset

CH2 1.0 V Vert scale setting,

+5 Div position setting, --2.5 V offset

CH3 2 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH3 2 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

+511.99mV __________ __________ + 520.01 mV

-- 520.01 mV __________ __________ -- 511.99 mV

+ 879.75 mV __________ __________ + 920.25 mV

-- 920.25 V __________ __________ -- 879.75 mV

+ 4.9298 V __________ __________ + 5.0702 V

-- 5.0702 V __________ __________ -- 4.9298 V

+ 4.1475 V __________ __________ + 4.8525 V

-- 4.8525 V __________ __________ -- 4.1475 V

+511.99mV __________ __________ + 520.01 mV

-- 520.01 mV __________ __________ -- 511.99 mV

+ 879.75 mV __________ __________ + 920.25 mV

-- 920.25 V __________ __________ -- 879.75 mV

+ 4.9298 V __________ __________ + 5.0702 V

-- 5.0702 V __________ __________ -- 4.9298 V

+ 4.1475 V __________ __________ + 4.8525 V

-- 4.8525 V __________ __________ -- 4.1475 V

+511.99mV __________ __________ + 520.01 mV

-- 520.01 mV __________ __________ -- 511.99 mV

Performance Tests

CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

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Performance Tests

CSA7000B & TDS7000B Test Record (cont.)

Instrument Serial Number: Certificate Number: Temperature: RH %: Date of Calibration: Technician:

Instrument performance test MaximumOutgoingIncomingMinimum

CH3 50 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH3 50 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH3 100 mV Vert scale setting,

--5 Div position sett ing, +4.8 V offset

CH3 100 mV Vert scale setting,

+5 Div position setting, --4.8 V offset

CH3 1.0 V Vert scale setting,

--5 Div position sett ing, +2.5 V offset

CH3 1.0 V Vert scale setting,

+5 Div position setting, --2.5 V offset

CH4 2 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH4 2 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH4 50 mV Vert scale setting,

--5 Div position sett ing, +0.5 V offset

CH4 50 mV Vert scale setting,

+5 Div position setting, --0.5 V offset

CH4 100 mV Vert scale setting,

--5 Div position sett ing, +4.8 V offset

CH4 100 mV Vert scale setting,

+5 Div position setting, --4.8 V offset

CH4 1.0 V Vert scale setting,

--5 Div position sett ing, +2.5 V offset

CH4 1.0 V Vert scale setting,

+5 Div position setting, --2.5 V offset

+ 879.75 mV __________ __________ + 920.25 mV

-- 920.25 V __________ __________ -- 879.75 mV

+ 4.9298 V __________ __________ + 5.0702 V

-- 5.0702 V __________ __________ -- 4.9298 V

+ 4.1475 V __________ __________ + 4.8525 V

-- 4.8525 V __________ __________ -- 4.1475 V

+511.99mV __________ __________ + 520.01 mV

-- 520.01 mV __________ __________ -- 511.99 mV

+ 879.75 mV __________ __________ + 920.25 mV

-- 920.25 V __________ __________ -- 879.75 mV

+ 4.9298 V __________ __________ + 5.0702 V

-- 5.0702 V __________ __________ -- 4.9298 V

+ 4.1475 V __________ __________ + 4.8525 V

-- 4.8525 V __________ __________ -- 4.1475 V

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CSA7404B, TDS7704B , TDS7404B, TDS7254B & TDS7154B Service Manual

Tektronix TDS7154B, TDS7254B, TDS7404B, CSA7000B, CSA7404B Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Warranty 2

Table of Contents

List of Figures

List of Tables

General Safety Summary

Service Safety Summary

Environmental Considerations

Preface

Manual Structure

Manual Conventions

Related Documentation

Specifications

Product and Feature Description

Specification Tables

Certifications and Compliances

Operating Information

Installation

Operating Information

Theory of Operation

Logic Conventions

Module Overviews

Performance Verification

Conventions

Brief Procedures

Self Tests

Functional Tests

Performance Tests

Prerequisites

Equipment Required

CSA7000B & TDS7000B Test Record