Tektronix TDS7054, TDS7104, TDS7000 Service Manual

Service Manual

TDS7000 Series
Digital Phosphor Oscilloscopes
(TDS7104 & TDS7054)

071-0711-03

This document applies to firmware version 2.3.2
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.

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

Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY

Tektronix warrants that the products that it ma nufactures and sells will be free from de fects in materials and workmanship
for a period of one (1) year from the date of shipment. If this product proves defective during its warranty period,
Tektronix, at its option, will either repair the defective product without charge for parts and labor, or provide a replacement
in exchange for the defective product.

This warranty applies only to products returned to the designated Tektronix depot or the Tektronix authorized
representative from which the product was originally purchased. For products returned to other locations, Customer will be
assessed an applicable service charge. The preceding limitation shall not apply within the European Economic Area, where
products may be returned for warranty service to the nearest designated service depot regardl ess of the place of purchase.

In order to obtain service under this warranty, Customer must provide the appli cable office of Tektronix or its authorized
representative with notice of the defect before the expiration of the warranty period and make suitable arrangements for the
performance of service. Customer shall be responsible for packaging and shipping the defective product to the service
center designated by Tektronix or its representative, with shipping charges prepaid. Tektronix or its representative shall pay
for the return of the product to Customer. Customer shall be responsible for paying any associated taxes or duties.

This warranty shall not apply to any defect, failure or damage caused by improper use or im proper or inadequate
maintenance and care. Tektronix shall not be obliga ted to furnish service under this warranty:

a) to repair damage resulting from attempts by personnel other than Tektronix representatives to install, repa ir or service

the product;

b) to repair damage resulting from improper use or connection to incompat ible equipment;

c) to repair any damage or malfunction caused by the use of non-Tektronix supplies or consumables;

d) to repair a product that has been modified or integra ted with other products when the effect of such modification or

integration increases the time or difficulty of servicing the product; or

e) to repair damage or malfunction resulting from failure to perform user maintenance and cleaning at the frequency and

as prescribed in the user manual (if applicable).

THE ABOVE WARRANTIES ARE GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY OTHER

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

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR

REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR

BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT,

SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE

VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Table of Contents

Specifications

Operating Information

General Safety Summary xi...................................

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

Preface xv...................................................

Manual Structure xv................................................

Manual Conventions xv..............................................

Related Documentation xvi...........................................

Contacting Tektronix xvii.............................................

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

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

Signal Processing Features 1--2.....................................

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

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

Trigger Features 1--3..............................................

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

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

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

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

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

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

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

Powering Off the Oscilloscope 2--5..................................

Create an Emergency Startup Disk 2--5...............................

Software Installation 2--6..........................................

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--10........................................

Signal Path Compensation 2--10.....................................

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

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Table of Contents

Theory of Operation

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

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

Performance Verification

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

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

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

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

Performance Tests — Semi-Automated Method 4--17.................

Overview of the Procedure 4--19.........................................

Initial Instrumentation Setup 4--20.......................................

Test Program Installation 4--22..........................................

Test Program Execution 4--23...........................................

Performance Tests 4--27.........................................

Prerequisites 4--27....................................................

Equipment Required 4--28..............................................

TDS7000 Test Record 4--30............................................

Signal Acquisition System Checks 4--35...................................

Time Base System Checks 4--57.........................................

Trigger System Checks 4--65............................................

Output Signal Checks 4--74.............................................

Sine Wave Generator Leveling Procedure 4--81.............................

General 3--1....................................................

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--13.........................................

Check DC Voltage Measurement Accuracy 4--35........................

Check DC Gain Accuracy 4--39......................................

Check Analog Bandwidth 4--43......................................

Check Delay Between Channels 4--48.................................

Check Channel Isolation (Crosstalk) 4--52.............................

Check Long-Term Sample Rate and Delay Time Accuracy and

Reference 4--57............................................

Check Delta Time Measurement Accuracy 4--62........................

Check Time Accuracy for Pulse, Glitch, Timeout, and

Width Triggering 4--65......................................

Check Sensitivity, Edge Trigger, DC Coupled 4--69......................

Check Outputs — CH 3 Signal Out and Aux Trigger Out 4--74.............

Check Probe Compensation Output 4--77..............................

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TDS7104 & TDS7054 Service Manual

Adjustment Procedure

Maintenance

Table of Contents

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

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

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

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

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

Required Equipment 5--2..........................................

Overview of the Procedure 5--3.........................................

Instrumentation Setup 5--4.............................................

Adjustment Program Installation 5--9....................................

Adjustment Program Execution 5--10.....................................

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

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

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

Interior Cleaning 6--2.............................................

Exterior Cleaning 6--2............................................

Flat Panel Display Cleaning 6--3....................................

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

Preparation 6--7.....................................................

Procedures for External Modules 6--9....................................

Procedures for Outer-Chassis Modules 6--20...............................

Troubleshooting 6--51...........................................

Service Level 6--51...................................................

Check for Common Problems 6--51......................................

Equipment Required 6--53..............................................

Fault Isolation Procedure 6--53..........................................

PPC and NLX PC Diagnostics 6--58......................................

Firmware Updates 6--62................................................

After Repair 6--63....................................................

BIOS Error Messages (Bali NLX) 6--63...................................

BIOS Error Messages (Radisys NLX) 6--64................................

BIOS Beep Codes (Bali NLX) 6--67......................................

BIOS Beep Codes (Radisys NLX) 6--68...................................

Dip Switch Controls 6 --68..............................................

Diagnostic LED 6--69.................................................

Troubleshooting Using Reset Circuits 6--71................................

Update/Restore the NLX Board CMOS 6--73...............................

Installing an Authorization Key 6--74.....................................

Hard Disk Drive Maintenance 6--75......................................

Repackaging Instructions 6--77...................................

Packaging 6--77......................................................

Shipping to the Service Center 6--77......................................

Options

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

Accessories 7--2.....................................................

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Table of Contents

Electrical Parts List

Diagrams

Mechanical Parts List

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

Diagrams 9--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...........................

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TDS7104 & TDS7054 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--7.....................................

Figure 4-- 3: Channel button location 4 --8..........................

Figure 4--4: Setup for time base test 4--10...........................

Figure 4--5: Setup for trigger test 4--12.............................

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

Figure 4--7: Initial setup 4--20....................................

Figure 4--8: Setup to characterize signal sou rce outputs 4--23..........

Figure 4--9: Setup to check delay between channels 4--24..............

Figure 4--10: Setup to check delta time accuracy 4--24................

Figure 4-- 11: Setup to check probe compensation output 4-- 25.........

Figure 4--12: Setup to check analog signal output 4--25...............

Figure 4--13: Setup to check auxiliary output 4--25...................

Figure 4--14: Initial test hookup 4--36..............................

Figure 4--15: Measurement of DC accuracy at maximum

offset and position 4--38......................................

Figure 4--16: Initial test hookup 4--39..............................

Figure 4--17: Measurement of DC gain accuracy 4--42................

Figure 4--18: Initial test hookup 4--44..............................

Figure 4--19: Optional initial test hookup 4--44......................

Figure 4--20: Measurement of an alog bandwid th 4--47................

Figure 4--21: Initial test hookup 4--49..............................

Figure 4--22: Measurement of chan nel delay 4--51...................

Figure 4--23: Initial test hookup 4--53..............................

Figure 4--24: Initial test hookup 4--57..............................

Figure 4--25: Measurement of accuracy -- long-term and

delay time 4--59.............................................

Figure 4--26: Initial test hookup for external reference 4--60...........

Figure 4-- 27: Final test hookup for external reference input 4-- 61.......

Figure 4--28: Delta time accuracy test hookup 4--62..................

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Table of Contents

Figure 4--29: Initial test hookup 4--66..............................

Figure 4--30: Measurement of time accuracy for pulse and

glitch triggering 4--67........................................

Figure 4--31: Initial test hookup 4--70..............................

Figure 4--32: Measurement of trigger sensitivity -- 50 MHz

results shown 4--71..........................................

Figure 4--33: Initial test hookup 4--74..............................

Figure 4--34: Measurement of main trigger ou t limits 4--76............

Figure 4--35: Initial test hookup 4--77..............................

Figure 4--36: Measurement of p robe compensator frequency 4--78......

Figure 4-- 37: Subsequent test hookup 4-- 79.........................

Figure 4--38: Measurement of p robe compensator amplitude 4--80......

Figure 4-- 39: Sine wave generator leveling equipment setup 4-- 81......

Figure 4-- 40: Equipment setup for maximum amplitude 4-- 83.........

Figure 5--1: Adjustment setup using a separate controller 5--4........

Figure 5--2: Adjustment setup using the oscilloscope as

the controller 5--5..........................................

Figure 5--3: National Instruments GPIB Interface Properties

dialog box 5--8.............................................

Figure 6--1: Line fuse and line cord removal 6--10...................

Figure 6--2: Knob removal 6--11..................................

Figure 6--3: Trim removal 6--13...................................

Figure 6--4: Bottom cover removal 6--14............................

Figure 6--5: Cover removal 6--16..................................

Figure 6--6: Cover removal 6--17..................................

Figure 6--7: External modules 6--18................................

Figure 6-- 8: Internal modules 6-- 19................................

Figure 6--9: Front-panel assembly removal 6--21.....................

Figure 6--10: J1 flex cable connector removal 6--22...................

Figure 6--11: Front panel board and keyboard removal 6--23..........

Figure 6--12: Display removal 6--25................................

Figure 6--13: Touch panel and LCD assembly removal 6--26...........

Figure 6--14: Display adaptor board removal 6--27...................

Figure 6--15: Cable clip removal 6--27..............................

Figure 6--16: Power flex circuit removal 6--29.......................

Figure 6--17: Floppy disk drive removal 6--30.......................

Figure 6--18: Hard disk drive removal 6--32.........................

Figure 6--19: Removing the hard disk drive from the cartridge 6--32....

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TDS7104 & TDS7054 Service Manual

Table of Contents

Figure 6--20: CD drive and bracket removal 6--34....................

Figure 6--21: Fan assembly removal 6--35...........................

Figure 6-- 22: Front and rear power distribution and PA bus

boards removal 6--37........................................

Figure 6-- 23: Low-voltage power supply removal 6--38................

Figure 6--24: NLX battery removal 6--39...........................

Figure 6--25: NLX assembly removal 6--42..........................

Figure 6--26: Riser adapter and NLX board removal 6--44............

Figure 6--27: Microprocessor removal 6--46.........................

Figure 6--28: PPC Processor board removal 6--48....................

Figure 6--29: Acquisition circuit board removal 6--50.................

Figure 6--30: Primary troubleshooting tree 6--54.....................

Figure 6--31: Location of power-on and over current LEDs 6--55.......

Figure 6--32: Location of debug pins 6--56..........................

Figure 6--33: Connectors J1 and J2 6--57...........................

Figure 6--34: The three PCI busses 6--71...........................

Figure 6--35: PCI and NLX video connectors 6--72...................

Figure 6--36: Location of jumpers and reset button 6 --73..............

Figure 9--1: TDS7000 series block diagram 9--2.....................

Figure 10--1: External parts 10--6.................................

Figure 10--2: Front panel and drives 10--8..........................

Figure 10--3: Power supply 10--11..................................

Figure 10--4: Acquisition assembly 10--12............................

Figure 10--5: Accessories 10--13....................................

TDS7104 & TDS7054 Service Manual

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Table of Contents

List of Tables

Table 1--1: TDS7000 models 1--1.................................

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

T able 1--3: Horizontal and acquisition system specifications 1--10......

Table 1--4: Trigger specifications 1--12.............................

Table 1--5: Display specifications 1--15.............................

Table 1--6: Input/output port specifications 1-- 16....................

Table 1--7: Data storage specifications 1--18........................

Table 1--8: Power source specifications 1--18........................

T able 1--9: Mechanical specifications 1--19.........................

Table 1--10: Environmental specifications 1--20.....................

Table 1--11: Certifications and compliances 1--21....................

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

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

Table 4--1: Required equipment and materials 4-- 17.................

Table 4--2: Test sequence overview 4-- 19...........................

Table 4--3: GPIB devices required by test program 4--21.............

Table 4--4: Test equipment 4--28..................................

T able 4--5: DC V oltage measurement accuracy 4--37.................

T able 4--6: Gain accuracy 4--41...................................

Table 4--7: Analog bandwidth 4--46...............................

T able 4--8: Delay between channels worksheet 4--52.................

Table 4--9: Delta time measurement 4--64..........................

Table 5--1: Adjustments required for module replaced 5--1...........

Table 5--2: Required equipment and materials 5-- 2.................

Table 5--3: GPIB devices required by test program 5--6.............

Table 5--4: Renaming the GPIB devices 5--8.......................

Table 5--5: Setting the GPIB addresses 5--9........................

T able 6--1: External inspection check list 6--3......................

T able 6--2: Internal inspection check list 6--4......................

Table 6--3: Tools required for module removal 6--8.................

Table 6--4: Failure symptoms and possible causes 6--51...............

Table 6--5: Power supply voltages 6-- 56............................

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TDS7104 & TDS7054 Service Manual

Table of Contents

Table 6--6: Power-on diagnostic tests 6--59.........................

Table 6--7: Action required for module replaced 6-- 63................

Table 6--8: BIOS Error messages 6--63............................

Table 6--9: BIOS Error messages (Radisys) 6--65....................

T able 6--10: Beep codes (Bali) 6--67...............................

Table 6--11: Beep codes (Radisys) 6-- 68............................

Table 6--12: DIP switch functions 6--69............................

Table 6--13: Diagnostic LED 6--70................................

T able 7--1: Standard accessories 7--2.............................

Table 7--2: Optional accessories 7--3..............................

TDS7104 & TDS7054 Service Manual

ix

Table of Contents

x

TDS7104 & TDS7054 Service Manual

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.

Only qualified personnel should perform service procedures.

While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.

ToAvoidFireor

Personal Injury

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

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

Ground the Product. This product is 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.

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

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

Avoid Exposed Circuitry. Do not touch exposed connections and components

when power is present.

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

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

Do Not Operate in Wet/Damp Conditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Provide Proper Ventilation. Refer to the manual’s installation instructions for

details on installing the product so it has proper ventilation.

TDS7104 & TDS7054 Service Manual

xi

General Safety Summary

Symbols and Terms

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

WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.

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

DANGER indicates an injury hazard immediately accessible as you read the
marking.

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

CAUTION indicates a hazard to property including the product.

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

CAUTION

Refer to Manual

Mains Disconnected

OFF (Power)

WARNING

High Voltage

Mains Connected

ON (Power)

Protective Ground

(Earth) Terminal

Standby

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TDS7104 & TDS7054 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.

TDS7104 & TDS7054 Service Manual

xiii

Service Safety Summary

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TDS7104 & TDS7054 Service Manual

Preface

Manual Structure

Manual Conventions

This is the service manual for the TDS7000 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 Service Safety Summary found
at the beginning of this manual.

TDS7104 & TDS7054 Service Manual

xv

Preface

Related Documentation

The oscilloscope, electrical sampling modules and optical sampling modules
come with the following manuals:

H CSA7000, TDS7000 & TDS6000 Series User manual. Tektronix part number

071-7010-XX.

H CSA7000, TDS7000 & TDS6000 Series Reference manual. Tektronix part

number 020-2404-XX.

H TDS7000 & TLA600 Series Rackmount Kit (Option 1R) Instructions.

Tektronix part number 071-0716-XX.

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TDS7104 & TDS7054 Service Manual

Contacting Tektronix

Preface

Phone [phone]*

Address Tektronix, Inc.

Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA

Web site www.tektronix.com

Sales support 1-800-833-9200, select option 1*

Service support 1-800-833-9200, select option 2*

Technical support Email: [e-mail]

1-800-833-9200, select option 3*
1-503-627-2400

6:00 a.m. -- 5:00 p.m. Pacific time

* This phone number is toll free in North America. After office hours, please leave a

voice mail message.
Outside North America, contact a Tektronix sales office or distributor; see the
Tektronix web site for a list of offices.

TDS7104 & TDS7054 Service Manual

xvii

Preface

xviii

TDS7104 & TDS7054 Service Manual

Specifications

This chapter contains the specifications for the TDS7000 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.

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--10 on page 1--20.

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

listed in Table 1--8 on page 1--18.

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

minutes within the specified operating temperature range.

H You must perform the Signal 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. See Run the signal-path compensa-

tion routine on page 4--6 for instructions to perform this procedure.

Product and Feature Description

Your oscilloscope is shown in Table 1--1.

Table 1- 1: TDS7000 models

Model

TDS7054 4 500 MHz 5 GS/s

TDS7104 4 1GHz 10 GS/s

Number of
channels

Bandwidth

Maximum sample
rate (real time)

TDS7104 & TDS7054 Service Manual

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Specifications

Acquisition Features

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 to 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 16,000,000 points with memory
options.

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.

Signal Processing

Features

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.

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. W aveform 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.

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TDS7104 & TDS7054 Service Manual

Specifications

Display Features

Measurement Features

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. A Digital Phosphor Oscilloscope 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.

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.

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

Trigger Features

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. Option SM only. Provides mask testing for verifying compliance to
standards.

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. Option SM only. Use comm triggers to trigger on communica­tion signals.

TDS7104 & TDS7054 Service Manual

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Specifications

Convenience Features

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

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.

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.

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Data Storage and I/O. The instrument has a removeable hard disk drive, a CD-RW

drive, and a floppy disk drive that can be used for storage and retrieval of data.
The instrument has GPIB, USB, Centronics, COM, and Ethernet ports for input
and output to other devices.

Online Help. The instrument has a complete online help system that covers all its
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.

TDS7104 & TDS7054 Service Manual

Specification Tables

Specifications

Table 1- 2: Channel input and vertical specifications

Characteristic Description

Input channels Four, all identical

Input coupling DC, AC, and GND

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

Input impedance, DC coupled 1MΩ ± 0.5% in parallel with 10 pF (3pF)

50 Ω ±1%; VSWR ≤ 1.3:1 from DC to 500 MHz, ≤ 1.5: 1
from 500 MHz to 1 GHz

Maximum voltage at input BNC
(1 MΩ)

Maximum voltage at input BNC
(50 Ω)

n Delay between channels ≤ 50 ps between any two channels with the same scale

n Channel-to-channel crosstalk ≥ 100:1 at 100 MHz, and ≥ 30:1 at the rated bandwidth

Digitizers 8-bit resolution, separate digitizers for each channel

Sensitivity range 1MΩ: 1 mV/div to 10 V/div, in a 1-2-5 sequence

150 V

For steady state sinusoidal waveforms, derate at
20 dB/decade above 200 kHz to 9 V
above

5V

and coupling settings

for any two channels with the same scale and coupling
settings

sample simultaneously

50 Ω: 1 mV/div to 1 V/div, in a 1-2-5 sequence

Fine adjustment available with ≥1% resolution

CAT I,

RMS

, with peaks ≤±30 V

RMS

at 3 MHz and

RMS

TDS7104 & TDS7054 Service Manual

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Specifications

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

Characteristic Description

n Analog bandwidth DC 50 Ω coupling, bandwidth limit set to Full, operating

ambient ≤30 °C, derated by 2.5 MHz/°C above 30 °C

SCALE range Bandwidth

1mV/divto1.99mV/div TDS7054: DC to 450 MHz

TDS7104: DC to 500 MHz

2mV/divto4.98mV/div TDS7054: DC to 500 MHz

TDS7104: DC to 600 MHz

5mV/divto9.95mV/div TDS7054: DC to 500 MHz

TDS7104: DC to 750 MHz

10 mV/div to 1 V/div TDS7054: DC to 500 MHz

TDS7104: DC to 1 GHz

Analog bandwidth limit, typical Selectable between 20 MHz, 200 MHz, or Full

Lower frequency limit, AC coupled <10Hzfor1MΩ, reduced by a factor of ten when using

a 10X probe; <200 kHz for 50 Ω

Calculated rise time, typical DC 50 Ω coupling, bandwidth limit set to Full

SCALE range Rise time

1mV/divto1.99mV/div TDS7054: 890 ps

TDS7104: 800 ps

2mV/divto4.98mV/div TDS7054: 800 ps

TDS7104: 667 ps

5mV/divto9.95mV/div TDS7054: 800 ps

TDS7104: 533 ps

10 mV/div to 1 V/div TDS7054: 800 ps

TDS7104: 400 ps

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TDS7104 & TDS7054 Service Manual

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

c

a

Characteristic Description

Step response settling errors,
typi

l

Bandwidth limit set to Full

SCALE range and step
amplitude

Specifications

Settling error at time after
step

1 mV/div to 100 mV/div,
with ≤ 2Vstep

101 mV/div to 1 V/div,
with ≤ 20 V step

1.01 V/div to 10 V/div,
with ≤ 200 V step

Position range ± 5 divisions

Offset range SCALE range Offset range

1 mV/div to 100 mV/div ±1V

101 mV/div to 1 V/div ±10 V

1.01 V/div to 10 V/div ±100 V

Offset accuracy SCALE range Offset range

1 mV/div to 100 mV/div ±(0.2% ×| net offset | +

20 ns: ≤ 0.5%

100 ns: ≤ 0.2%

20 ms: ≤ 0.1%

20 ns: ≤ 1.0%

100 ns: ≤ 0.5%

20 ms: ≤ 0.2%

20 ns: ≤ 1.0%

100 ns: ≤ 0.5%

20 ms: ≤ 0.2%

1.5 mV + 0.1 div ×V/div
setting)

101 mV/div to 1 V/div ±(0.25% ×| net offset | +

15 mV + 0.1 div ×V/div
setting)

1.01 V/div to 10 V/div ±(0.25% ×| net offset | +
150 mV + 0.1 div ×V/div
setting)

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

TDS7104 & TDS7054 Service Manual

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Specifications

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

Characteristic Description

DC gain accuracy, ±1% in Sample or Average acquisition mode

DC voltage measurement accuracy Measurement type DC accuracy (in volts)

Sample acquisition mode,
typical

n Average acquisition
mode (≥16 averages)

Absolute measurement of
any waveform point, and
High, Low, Max, and Min
measurements

Delta voltage measurement
between any two points
acquired under the same
setup and ambient condi­tions, and all other auto­matic measurements

Net offset = offset -- (position × volts/division) and is
expressed in volts

Absolute measurement of
any waveform point, and
High, Low, Max, and Min
measurements

Delta voltage measurement
between any two points
acquired under the same
setup and ambient condi­tions, and all other auto­matic measurements

Net offset = offset -- (position × volts/division) and is
expressed in volts

±[(1.0% × | reading -- net
offset | ) + offset accuracy +
(0.13 div × V/div setting) +

0.6 mV]

±[(1.0% × | reading | ) +
(0.26 div × V/div setting) +

1.2 mV]

±[(1.0% × | reading -- net
offset | ) + offset accuracy
+(0.06 × V/div)]

±[(1.0% × | reading | ) +
(0.1 div × V/div setting) +

0.3 mV]

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Nonlinearity, typical < 1 LSB differential, < 1 LSB integral, independently

based

TDS7104 & TDS7054 Service Manual