Tektronix TDS500C User Manual

Technical Reference

TDS 500C, TDS 600B & TDS 700C Digitizing Oscilloscopes Performance Verification and Specifications

070-9874-02

that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000 TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.

WARRANTY

T ektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years from the date of shipment. If any such product proves defective during this warranty period, T ektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the service center designated by T ektronix, with shipping charges prepaid. T ektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the T ektronix 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. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than T ektronix representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; or c) 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 THIS PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED 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 CUST OMER 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.

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

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

Contacting Tektronix x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Verification Procedures

Performance Verification Procedures 1–1. . . . . . . . . . . . . . . . . . . . . . . . . .

Input Channels vs. Model 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Conventions 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Brief Procedures 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Self Tests 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functional T ests 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Tests 1–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Prerequisites 1–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Required 1–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 600B T est Record 1–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 500C/700C T est Record 1–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signal Acquisition System Checks 1–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Time Base System Checks 1–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trigger System Checks 1–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Signal Checks 1–58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Option 05 Video Trigger Checks 1–67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sine Wave Generator Leveling Procedure 1–84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Filters Checks (TDS 500C/TDS 700C Only) 1–87. . . . . . . . . . . . . . . . . . . . .

Specifications

Specifications 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Description 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

User Interface 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signal Acquisition System 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Horizontal System 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trigger System 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Acquisition Control 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

On-Board User Assistance 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Measurement Assistance 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I/O 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Display 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Nominal Traits 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranted Characteristics 2–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Characteristics 2–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Table of Contents

List of Figures

Figure 1–1: Map of display functions 1–3. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–2: Verifying adjustments and signal-path compensation 1–6. . Figure 1–3: Universal test hookup for functional tests –

TDS 600B shown 1–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–4: Measurement of DC offset accuracy at zero setting 1–29. . . .

Figure 1–5: Initial test hookup 1–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–6: Measurement of DC accuracy at maximum offset

and position 1–32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–7: Initial test hookup 1–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–8: Optional initial test hookup 1–34. . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–9: Measurement of analog bandwidth 1–37. . . . . . . . . . . . . . . . . .

Figure 1–10: Initial test hookup 1–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–11: Measurement of channel delay – TDS 684B shown 1–41. . . .

Figure 1–12: Initial test hookup 1–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–13: Measurement of accuracy — Long-term and delay time 1–45

Figure 1–14: Initial test hookup 1–46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–15: Measurement of time accuracy for pulse and

glitch triggering 1–48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–16: Initial test hookup 1–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–17: Measurement of trigger-level accuracy 1–51. . . . . . . . . . . . .

Figure 1–18: Initial test hookup 1–54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–19: Measurement of trigger sensitivity — 50 MHz results

shown on a TDS 684B screen 1–55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–20: Initial test hookup 1–58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–21: Measurement of main trigger out limits 1–60. . . . . . . . . . . . .

Figure 1–22: Initial test hookup 1–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–23: Measurement of probe compensator frequency 1–64. . . . . . .

Figure 1–24: Subsequent test hookup 1–65. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–25: Measurement of probe compensator amplitude 1–66. . . . . .

Figure 1–26: Jitter test hookup 1–68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–27: Jitter test displayed waveform – TDS 684B shown 1–69. . . .

Figure 1–28: Jitter test when completed – TDS 684B shown 1–70. . . . . . .

Figure 1–29: Triggered signal range test – 300 mV 1–72. . . . . . . . . . . . . . .

Figure 1–30: Triggered signal range test – 75 mV 1–73. . . . . . . . . . . . . . . .

Figure 1–31: 60 Hz Rejection test hookup 1–74. . . . . . . . . . . . . . . . . . . . . .

Figure 1–32: 60 Hz Rejection test setup signal 1–74. . . . . . . . . . . . . . . . . . .

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Table of Contents

Figure 1–33: Subsequent 60 Hz Rejection test hookup 1–75. . . . . . . . . . . .

Figure 1–34: 60 Hz Rejection test result – TDS 684B shown 1–76. . . . . . .

Figure 1–35: Line count accuracy test hookup 1–77. . . . . . . . . . . . . . . . . . .

Figure 1–36: Line count accuracy test setup waveform –

TDS 684B shown 1–78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–37: Line count accuracy correct result waveform 1–79. . . . . . . .

Figure 1–38: Setup for sync duty cycle test 1–81. . . . . . . . . . . . . . . . . . . . . .

Figure 1–39: Sync duty cycle test: one-div neg pulse waveform 1–82. . . . .

Figure 1–40: Sync duty cycle test: critically adjusted pulse 1–83. . . . . . . .

Figure 1–41: Sine wave generator leveling equipment setup 1–85. . . . . . .

Figure 1–42: Equipment setup for maximum amplitude 1–86. . . . . . . . . .

Figure 1–43: Reference-receiver performance-verification set up 1–89. . . Figure 1–44: Optical impulse of Ch1 input from OA5022 Optical

Attenuator (OIG501 / OIG502 fed into optical attenuator

in Step 1) 1–91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–45: Optical impulse response for OC–12 SONET

Reference Receiver 1–94. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–46: Optical impulse response for OC–12 SONET

Reference Receiver 1–95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

iii

Table of Contents

List of Tables

Table 1–1: Test equipment 1–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–2: DC offset accuracy (zero setting) 1–28. . . . . . . . . . . . . . . . . . . .

Table 1–3: DC Voltage measurement accuracy 1–31. . . . . . . . . . . . . . . . . .

Table 1–4: Analog bandwidth 1–35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–5: Delay between channels worksheet 1–42. . . . . . . . . . . . . . . . . .

Table 1–6: Available Filters 1–87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–7: Reference Receiver Filter Options: 1–88. . . . . . . . . . . . . . . . . . .

Table 1–8: Option 3C and 4C Specifications 1–88. . . . . . . . . . . . . . . . . . . .

Table 1–9: Available receivers 1–88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–10: Bessel Thompson frequency response and reference

receiver limits 1–96. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–1: Key features of the TDS 500C, 600B and 700C

oscilloscopes 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–2: Record length and divisions per record vs. TDS model 2–4. .

Table 2–3: Nominal traits — Signal acquisition system 2–9. . . . . . . . . . .

Table 2–4: Nominal traits — Time base system 2–10. . . . . . . . . . . . . . . . . .

Table 2–5: Nominal traits — Triggering system 2–11. . . . . . . . . . . . . . . . .

Table 2–6: Nominal traits — Display system 2–13. . . . . . . . . . . . . . . . . . . .

Table 2–7: Nominal traits — GPIB interface, output ports, and

power fuse 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–8: Nominal traits — Data handling and reliability 2–14. . . . . . . .

Table 2–9: Nominal traits — Mechanical 2–15. . . . . . . . . . . . . . . . . . . . . . .

Table 2–10: Warranted characteristics — Signal acquisition system 2–18

Table 2–11: Warranted characteristics — Time base system 2–19. . . . . . .

Table 2–12: Warranted characteristics — Triggering system 2–20. . . . . .

Table 2–13: Warranted characteristics — Output ports, probe

compensator, and power requirements 2–20. . . . . . . . . . . . . . . . . . . . .

Table 2–14: Warranted characteristics — Environmental 2–22. . . . . . . . .

Table 2–15: Certifications and compliances 2–24. . . . . . . . . . . . . . . . . . . . .

Table 2–16: Typical characteristics — Signal acquisition system 2–25. . .

Table 2–17: Typical characteristics — Triggering system 2–28. . . . . . . . .

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

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 the 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.

Injury Precautions

Use Proper Power Cord

Avoid Electric Overload

Ground the Product

Do Not Operate Without

Covers

Use Proper Fuse

Do Not Operate in

Wet/Damp Conditions

Do Not Operate in

Explosive Atmosphere

To avoid fire hazard, use only the power cord specified for this product.

To avoid electric shock or fire hazard, do not apply a voltage to a terminal that is outside the range specified for that terminal.

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.

To avoid electric shock or fire hazard, do not operate this product with covers or panels removed.

To avoid fire hazard, use only the fuse type and rating specified for this product.

To avoid electric shock, do not operate this product in wet or damp conditions.

To avoid injury or fire hazard, do not operate this product in an explosive atmosphere.

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

General Safety Summary

Product Damage Precautions

Use Proper Power Source

Provide Proper Ventilation

Do Not Operate With

Suspected Failures

Do Not Immerse in Liquids

Do not operate this product from a power source that applies more than the voltage specified.

To prevent product overheating, provide proper ventilation.

If you suspect there is damage to this product, have it inspected by qualified service personnel.

Clean the probe using only a damp cloth. Refer to cleaning instructions.

Safety Terms and Symbols

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.

Terms on the Product

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: 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.

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

General Safety Summary

Symbols on the Product

The following symbols may appear on the product:

DANGER

High Voltage

Certifications and Compliances

CSA Certified Power

Cords

CSA Certification includes the products and power cords appropriate for use in the North America power network. All other power cords supplied are approved for the country of use.

Protective Ground

(Earth) T erminal

ATTENTION

Refer to

Manual

Double

Insulated

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

vii

General Safety Summary

viii

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Preface

Related Manuals

This is the Performance Verification and Specifications for the TDS 500C, TDS 600B, and TDS 700C Oscilloscopes. It contains procedures suitable for determining if each instrument functions, was adjusted properly, and meets the performance characteristics as warranted. The following models are covered:

TDS 500C: TDS 520C and TDS 540C

TDS 600B: TDS 620B, TDS 644B, TDS 680B, and TDS 684B

TDS 700C: TDS 724C, TDS 754C, and TDS 784C

This document also contains the technical specifications for these oscilloscopes.

The following documents are related to the use or service of this digitizing oscilloscope:

H The TDS 500C, TDS 600B & 700C User Manual describes how to use this

digitizing oscilloscope.

H The TDS Family Programmer Manual describes using a computer to control

the digitizing oscilloscope through the GPIB interface.

H The TDS 500C, TDS 600B & 700C Reference describes a quick overview of

how to operate your digitizing oscilloscope.

H The TDS 500C, TDS 600B & 700C Service Manual describes information

for maintaining and servicing the digitizing oscilloscope to the module level.

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Preface

Contacting Tektronix

Product Support

Service Support

For other information

To write us Tektronix, Inc.

For application-oriented questions about a Tektronix measurement product, call toll free in North America: 1-800-TEK-WIDE (1-800-835-9433 ext. 2400) 6:00 a.m. – 5:00 p.m. Pacific time

Or, contact us by e-mail: tm_app_supp@tek.com

For product support outside of North America, contact your local Tektronix distributor or sales office.

Contact your local Tektronix distributor or sales office. Or, visit our web site for a listing of worldwide service locations.

http://www.tek.com In North America:

1-800-TEK-WIDE (1-800-835-9433) An operator will direct your call.

P.O. Box 1000 Wilsonville, OR 97070-1000

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Performance Verification

Procedures

Performance Verification Procedures

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 oscilloscope functions and was adjusted properly,

just do the brief procedures under Self Tests, which begin on page 1–5. 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 oscilloscope 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 1–7. Advantages: These procedures require minimal additional time to perform,

require no additional equipment other than a standard-accessory probe, and more completely test the internal hardware of the oscilloscope. They can be used to quickly determine if the oscilloscope 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 1–15, after doing the Functional and Self Tests

just referenced. Advantages: These procedures add direct checking of warranted specifica-

tions. They require more time to perform and suitable test equipment is required. (See Equipment Required beginning on page 1–16).

If you are not familiar with operating this oscilloscope, read the TDS 500C,

TDS 600B & TDS 700C Reference (070-9861-XX) or the TDS 500C, TDS 600B & TDS 700C User Manual (070-9869-XX). These contain instructions that will

acquaint you with the use of the front-panel controls and the menu system.

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

1–1

Performance Verification Procedures

Input Channels vs. Model

When performing the procedures in this section, be aware that some TDS models refer to input channels Ch 3 and Ch 4 as Aux 1 and Aux 2 respectively. Where appropriate, both names will appear in the procedure, for example, Ch 3 (Aux 1). The channel names for the various TDS models are shown below.

TDS Model Channel Names

TDS 540C, 644B, 684B, 754C, and 784C TDS 520C, 620B, 680B, and 724C Ch 1, Ch 2, Aux 1, and Aux 2

Conventions

Throughout these procedures the following conventions apply:

Ch 1, Ch 2, Ch 3, and Ch 4

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 oscilloscope” by doing “Press save/recall SETUP. Now, press the main-menu button...”.

1–2

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Performance Verification Procedures

Initialize the oscilloscope: Press save/recall SETUP. Now, press the main-menu button Recall Factory Setup; then the side-menu button OK Confirm Factory Init.

H Where instructed to use a front-panel button or knob, or select from a main

or side menu, or verify a readout or status message, the name of the button or knob appears in boldface type: “press SHIFT; then UTILITY, press the main-menu button System until Cal is highlighted in the pop-up menu. Verify that the status message is Pass in the main menu under the Voltage Reference label.”

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

H Refer to Figure 1–1: “Main menu” refers to the menu that labels the seven

menu buttons under the display; “side menu” refers to the menu that labels the five buttons to the right of the display. “Pop-up menu” refers to a menu that pops up when a main-menu button is pressed.

Brief status information

Graticule and waveforms

Waveform reference

symbols show ground levels

and waveform sources

Vertical scale, horizontal scale,

and trigger level readouts

Pop-up menu

Position of waveform

record relative to

the screen and display

General purpose

knob readout

Side menu area. Readouts for measurements move here when CLEAR MENU is pressed.

Main menu display area. Readouts in lower graticule

area move here when CLEAR MENU is pressed.

Figure 1–1: Map of display functions

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

1–3

Performance Verification Procedures

1–4

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

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 oscilloscope functions properly. A probe is required to do these test procedures.

This procedure uses internal routines to verify that the oscilloscope 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 digitizing oscilloscope and allow a 20 minute warm-up

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

passing of internal diagnostics.

a. Display the System diagnostics menu:

H Press SHIFT; then press UTILITY. H Repeatedly press the main-menu button System until Diag/Err is

highlighted in the pop-up menu.

b. Run the System Diagnostics:

H First disconnect any input signals from all four channels. H Press the main-menu button Execute; then press the side-menu

button OK Confirm Run Test.

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

oscilloscope function. This verification will take up to three and a half minutes on some models. When the verification is finished, the resulting status will appear on the screen.

None

before doing this procedure.

d. Confirm no failures are found: Verify that no failures are found and

reported on-screen.

e. Confirm the three adjustment sections have passed status:

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Brief Procedures

H Press SHIFT; then press UTILITY. H Highlight Cal in the pop-up menu by repeatedly pressing the

main-menu button System. See Figure 1–2.

H Verify that the word Pass appears in the main menu under the

following menu labels: Voltage Reference, Frequency Response, and Pulse Trigger. See Figure 1–2.

f. Run the signal-path compensation: Press the main-menu button Signal

Path; then press the side-menu button OK Compensate Signal Paths.

g. Wait: Signal-path compensation may take five minutes on the

TDS 500C/700C and fifteen minutes on the 600B to run. While it progresses, a “clock” icon (shown at left) is displayed on-screen. When compensation completes, the status message will be updated to Pass or

Fail in the main menu. See step h.

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

word Pass appears under Signal Path in the main menu. See Figure 1–2.

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Highlight Cal

Verify Pass

Figure 1–2: Verifying adjustments and signal-path compensation

2. Return to regular service: Press CLEAR MENU to exit the system menus.

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Functional Tests

Brief Procedures

The purpose of these procedures is to confirm that the oscilloscope functions properly. The only equipment required is one of the standard-accessory probes and, to check the file system, a 3.5 inch, 720 K or 1.44 Mbyte floppy disk.

CAUTION. The P6243 and P6245 probes that can be used with this oscilloscope provide an extremely low loading capacitance (<1 pF) to ensure the best possible signal reproduction. These probes should not be used to measure signals exceeding ±8 volts, or errors in signal measurement will be observed. Above 40 volts, damage to the probe may result. To make measurements beyond ±10 volts, use either the P6139A probe (good to 500 volts peak), or refer to the catalog for a recommended probe.

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

Verify All Input Channels

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 1–15.

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 oscilloscope 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 menu 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.

Equipment required

Prerequisites None

One probe such as the P6243, P6245 or P6139A

1. Install the test hookup and preset the oscilloscope controls: a. Hook up the signal source: Install the probe on CH 1. Connect the probe

tip to PROBE COMPENSATION SIGNAL on the front panel;

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Brief Procedures

connect the probe ground (typically black) to PROBE COMPENSA- TION GND. If using a P6243 or P6245 probe, you may want to attach a Y-lead connector and two SMD KlipChips as shown in Figure 1–3.

Signal Gnd

Figure 1–3: Universal test hookup for functional tests – TDS 600B shown

b. Initialize the oscilloscope:

H Press save/recall SETUP. H Press the main-menu button Recall Factory Setup. H Press the side-menu button OK Confirm Factory Init.

2. Verify that all channels operate: Do the following substeps — test CH 1 first, skipping substep a and b since CH 1 is already set up for verification

and as the trigger source from step 1. a. Select an unverified channel:

H Press WAVEFORM OFF to remove the channel just verified from

display.

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H Press the front-panel button that corresponds to the channel you are

to verify.

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Brief Procedures

H Move the probe to the channel you selected.

b. Match the trigger source to the channel selected:

H Press TRIGGER MENU. H Press the main-menu button Source. H Press the side-menu button that corresponds to the channel selected,

Ch2, Ch3, or Ch4. (Some TDS models use Ax1 and Ax2 instead of Ch3 and Ch4).

c. Set up the selected channel:

H Set the vertical SCALE to 200 mV. H Set the horizontal SCALE to 200 s. Press CLEAR MENU to

remove any menu that may be on the screen.

H Press SET LEVEL TO 50%.

d. Verify that the channel is operational: Confirm that the following

statements are true. H The vertical scale readout for the channel under test shows a setting

of 200 mV, and a square-wave probe-compensation signal about

2.5 divisions in amplitude is on-screen. See Figure 1–1 on page 1–3 to locate the readout.

H The vertical POSITION knob moves the signal up and down the

screen when rotated.

H Turning the vertical SCALE knob counterclockwise decreases the

amplitude of the waveform on-screen, turning the knob clockwise increases the amplitude, and returning the knob to 200 mV returns the amplitude to about 2.5 divisions.

e. Verify that the channel acquires in all acquisition modes: Press SHIFT;

then press ACQUIRE MENU. Use the side menu to select, in turn, each of the three hardware acquire modes and confirm that the following statements are true. Refer to the icons at the left of each statement as you confirm those statements.

H Sample mode displays an actively acquiring waveform on-screen.

(Note that there is noise present on the peaks of 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 (TDS 500C and 700C only) displays an actively

acquiring waveform on-screen with the noise that was present in Sample mode reduced.

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Brief Procedures

H Envelope mode displays an actively acquiring waveform on-screen

with the noise displayed.

H Average mode displays an actively acquiring waveform on-screen

with the noise reduced.

f. Test all channels: Repeat substeps a through e until all four input

channels are verified.

3. Remove the test hookup: Disconnect the probe from the channel input and the probe-compensation terminals.

Verify the Time Base

Equipment required

Prerequisites None

One probe such as the P6243, P6245 or P6139A

1. Install the test hookup and preset the oscilloscope controls: a. Hook up the signal source: Install the probe on CH 1. Connect the probe

tip to PROBE COMPENSATION SIGNAL on the front panel; connect the probe ground to PROBE COMPENSATION GND. See Figure 1–3 on page 1–8.

b. Initialize the oscilloscope:

H Press save/recall SETUP. H Press the main-menu button Recall Factory Setup; then press the

side-menu button OK Confirm Factory Init.

c. Modify default settings:

H Set the vertical SCALE to 200 mV. H Set the horizontal SCALE to 200 s. H Press SET LEVEL TO 50%.

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H Press CLEAR MENU to remove the menus from the screen.

2. Verify that the time base operates: Confirm the following statements. a. One period of the square-wave probe-compensation signal is about five

horizontal divisions on-screen for the 200 s horizontal scale setting (set in step 1c).

b. 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 returns the period to about five divisions.

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

Brief Procedures

c. The horizontal POSITION knob positions the signal left and right

on-screen when rotated.

3. Remove the test hookup: Disconnect the probe from the channel input and

the probe-compensation terminals.

Verify the Main and

Delayed Trigger Systems

Equipment required

Prerequisites None

One probe such as the P6243, P6245, or P6139A

1. Install the test hookup and preset the oscilloscope controls: a. Hook up the signal source: Install the probe on CH 1. Connect the probe

tip to PROBE COMPENSATION SIGNAL on the front panel; connect the probe ground to PROBE COMPENSATION GND. See Figure 1–3 on page 1–8.

b. Initialize the oscilloscope:

H Press save/recall SETUP. H Press the main-menu button Recall Factory Setup. H Press the side-menu button OK Confirm Factory Init.

c. Modify default settings:

H Set the vertical SCALE to 200 mV. H Set the horizontal SCALE for the M (main) time base to 200 s. H Press SET LEVEL TO 50%. H Press TRIGGER MENU. H Press the main-menu button Mode & Holdoff. H Press the side-menu button Normal. H Press CLEAR MENU to remove the menus from the screen.

2. Verify that the main trigger system operates: Confirm that the following statements are true.

H The trigger level readout for the 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, which is indicated by the display not updating).

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Brief Procedures

H Pressing SET LEVEL TO 50% triggers the signal that you just left

untriggered. (Leave the signal triggered).

3. Verify that the delayed trigger system operates: a. Select the delayed time base:

H Press HORIZONTAL MENU. H Press the main-menu button Time Base. H Press the side-menu button Delayed Triggerable; then press the

side-menu button Delayed Only.

H Set the horizontal SCALE for the D (delayed) time base to 200 s.

b. Select the delayed trigger level menu:

H Press SHIFT; then press DELAYED TRIG. H Press the main-menu button Level; then press the side-menu button

Level.

c. Confirm that the following statements are true:

H The trigger-level readout for the delayed trigger system changes as

you turn the general purpose knob.

H As you rotate the general purpose knob, the square-wave probe-com-

pensation signal can become triggered and untriggered. (Leave the signal untriggered, which is indicated by the display not updating).

H Pressing the side-menu button Set to 50% triggers the probe-com-

pensation signal that you just left untriggered. (Leave the signal triggered).

d. Verify the delayed trigger counter:

H Press the main-menu button Delay by Time. H Use the keypad to enter a delay time of 1 second. Press 1, then press

ENTER.

H Verify that the trigger READY indicator on the front panel flashes

about once every second as the waveform is updated on-screen.

4. Remove the test hookup: Disconnect the probe from the channel input and the probe-compensation terminals.

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Brief Procedures

Verify the File System

Equipment required

Prerequisites None

One probe such as the P6243, P6245 or P6139A One 720 K or 1.44 Mbyte, 3.5 inch DOS-compatible disk.

You can use a disk of your own or you can use the Programming Examples Software 3.5 inch disk (Tektronix part number 063-1 134-XX) contained in the TDS Family Programmer Manual (Tektronix part number 070-9556-XX).

1. Install the test hookup and preset the oscilloscope controls: a. Hook up the signal source: Install the probe on CH 1. Connect the probe

tip to PROBE COMPENSATION SIGNAL on the front panel; connect the probe ground to PROBE COMPENSATION GND. See Figure 1–3 on page 1–8.

b. Insert the test disk: Insert the floppy disk in the floppy disk drive to the

left of the monitor.

H Position the disk so the metal shutter faces the drive. H Position the disk so the stamped arrow is on the top right side. In

other words, place the angled corner in the front bottom location.

H Push the disk into the drive until it goes all the way in and clicks

into place.

c. Initialize the oscilloscope:

H Press save/recall SETUP. H Press the main-menu button Recall Factory Setup. H Press the side-menu button OK Confirm Factory Init.

d. Modify default settings:

H Set the vertical SCALE to 200 mV. H Set the horizontal SCALE for the M (main) time base to 200 s.

Notice the waveform on the display now shows two cycles instead of five.

H Press SET LEVEL TO 50%. H Press CLEAR MENU to remove the menus from the screen.

e. Save the settings:

H Press SETUP. H Press the main-menu button Save Current Setup; then press the

side-menu button To File.

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Brief Procedures

H Turn the general purpose knob to select the file to save. Choose

 (or fd0:, the floppy disk drive, or hd0:, the optional hard disk drive). With this choice, you will save a file starting with , then containing 5-numbers, and a  extension. For example, the first time you run this on a blank, formatted disk or on the Example Programs Disk, the oscilloscope will assign the name  to your file. If you ran the procedure again, the oscilloscope would increment the name and call the file .

f. To test the optional hard disk drive, use the general purpose knob to

select the file to save. Then choose the hard disk drive (hd0:). Save the file as in step e.

H Press the side-menu button Save To Selected File.

2. Verify the file system works:

H Press the main-menu button Recall Factory Setup and the side-menu

button OK Confirm Factory Init to restore the 500 s time base and the five cycle waveform.

H Press the main-menu button Recall Saved Setup; then press the

side-menu button From File.

H Turn the general purpose knob to select the file to recall. For example, if

you followed the instructions previously and saved the file to either the floppy disk drive (fd0:), or the optional hard disk drive (hd0:), you had the oscilloscope assign the name TEK00000.SET to your file.

H Press the side-menu button Recall From Selected File. H Verify that digitizing oscilloscope retrieved the saved setup from the

disk. Do this by noticing the horizontal SCALE for the M (main) time base is again 200 s and the waveform shows only two cycles just as it was when you saved the setup.

3. Remove the test hookup:

H Disconnect the probe from the channel input and the probe-compensa-

tion terminals.

H Remove the floppy disk from the floppy disk drive.

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