TEKTRONIX TDS 520B (01) PDF MANUAL

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TEKTRONIX TDS 520B (01) PDF SUMMARY:

What are some injury precautions to avoid when using the product?

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.

What are some product damage precautions to take when operating the product?

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.

What do the terms “WARNING” and “CAUTION” mean in this manual?

WARNING statements identify conditions or practices that could result in injury or loss of life. CAUTION statements identify conditions or practices that could result in damage to this product or other property.

What do the terms “DANGER”, “WARNING”, and “CAUTION” mean 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.

What are some of the symbols that may appear on the product and what do they mean?

  • DANGER High Voltage
  • Protective Ground (Earth) Terminal
  • ATTENTION Refer to Manual
  • Double Insulated

What are the two types of Performance Verification procedures that can be performed on this product?

Two types of Performance Verification procedures can be performed on this product: Brief Procedures and Performance Tests.

What do the Brief Procedures consist of?

The brief procedures consist of Self Tests and Functional Tests.

What are the advantages of doing the Self Tests?

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.

What are the advantages of doing the Functional Tests?

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.

What are the advantages of doing the Performance Tests?

These procedures add direct checking of warranted specifications.

What is the general format of each test procedure?

Each test procedure uses the following general format:

  • Title of Test
  • Equipment Required
  • Prerequisites
  • Procedure

How are steps, substeps, and subparts sequenced in a test procedure?

Steps, substeps, and subparts are sequenced as follows:

  1. First Step a. First Substep * First Subpart * Second Subpart b. Second Substep
  2. Second Step

What does the lead-in statement in italics instruct you to do in a test procedure?

The lead-in statement in italics instructs you what to do, while the instructions that follow tell you how to do it.

How are front-panel buttons, knobs, main or side menus, or readouts represented in these procedures?

The name of the button or knob appears in boldface type.

What does “Main menu,” “side menu,” and “Pop-up menu” refer to?

  • 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.

What do the Self Tests use to confirm basic functionality and proper adjustment?

The Self Tests use internal routines to confirm basic functionality and proper adjustment.

What do the Functional Tests utilize as a test-signal source for verifying that the oscilloscope functions properly?

The Functional Tests utilize the probe-compensation output at the front panel as a test-signal source.

What is required to perform the Self Tests?

No test equipment or hookups are required.

What is required to perform the Functional Tests?

A probe, such as the P6243 or P6245, is required to do these test procedures.

What are the prerequisites for the Self Tests procedure?

Power on the Digitizing Oscilloscope and allow a 20 minute warm-up before doing this procedure.

How do you display the System diagnostics menu?

  • Press SHIFT; then press UTILITY.
  • Repeatedly press the main-menu button System until Diag/Err is highlighted in the pop-up menu.

How do you run the System Diagnostics?

  • First disconnect any input signals from all four channels.
  • Press the main-menu button Execute; then press the side-menu button OK Confirm Run Test.

How long does the internal diagnostics verification take?

This verification will take up to three and a half minutes on some models.

What should you confirm after the internal diagnostics are complete?

Verify that no failures are found and reported on-screen.

How do you confirm the three adjustment sections have passed status?

  • Press SHIFT; then press UTILITY.
  • Highlight Cal in the pop-up menu by repeatedly pressing the main-menu button System.
  • Verify that the word Pass appears in the main menu under the following menu labels: Voltage Reference, Frequency Response, and Pulse Trigger.

How do you run the signal-path compensation?

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

How long can the signal-path compensation take to run?

Signal-path compensation may take five minutes on the TDS 500B/700A and fifteen minutes on the 600B to run.

What should you confirm after the signal-path compensation is complete?

Verify that the word Pass appears under Signal Path in the main menu.

When should the Signal Path Compensation (SPC) be run?

SPC can be run any time after the oscilloscope is warmed up, and should be run whenever the oscilloscope’s ambient temperature has changed by more than 5°C or once a week if vertical settings of 5mV/div or less are used.

What is the procedure to return to regular service?

Press CLEAR MENU to exit the system menus.

What is the purpose of the functional tests?

The purpose of these procedures is to confirm that the oscilloscope functions properly.

What equipment is required for the functional tests?

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.

What should you be aware of when using the optional P6243 and P6245 probes?

The optional P6243 and P6245 probes 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.

What probes are recommended for measurements beyond ±10 volts?

To make measurements beyond ±10 volts, use either the P6139A probe (good to 500 volts), or refer to the catalog for a recommended probe.

What do the functional tests verify?

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

How should you interpret the quantities given in the functional tests?

Do not interpret the quantities given as limits. Operation within limits is checked in Performance Tests.

What should you avoid doing when performing functional tests?

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.

What should you do if you make changes to the front-panel settings during functional tests?

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.

What should you do if a menu button is already selected when you are instructed to press it?

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.

What is the required equipment for the brief procedures?

One probe such as the P6243, P6245 or P6139A.

What are the prerequisites for the brief procedures?

None.

How do you install the test hookup and preset the oscilloscope controls?

  1. Install the probe on CH 1.
  2. Connect the probe tip to PROBE COMPENSATION SIGNAL on the front panel.
  3. Connect the probe ground (typically black) to PROBE COMPENSATION 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.

How do you initialize the oscilloscope?

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

How do you verify that all channels operate?

  1. 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.
  2. Select an unverified channel:
    • Press WAVEFORM OFF to remove the channel just verified from display.
    • Press the front-panel button that corresponds to the channel you are to verify.
    • Move the probe to the channel you selected.
  3. Match the trigger source to the channel selected:
    • Press TRIGGER MENU.
    • Press the main-menu button Source.
    • Press the side-menu button that corresponds to the channel selected (Ch2, Ch3, or Ch4. On the TDS 520B, 620B, 680B, and 724A use Ax1 and Ax2 instead of Ch3 and Ch4).
  4. Set up the selected channel:
    • Set the vertical SCALE to 200 mV.
    • Set the horizontal SCALE to 200 s.
    • Press CLEAR MENU to remove any menu that may be on the screen.
  5. Verify that the channel is operational:
    • Confirm that 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.
    • Confirm that the vertical POSITION knob moves the signal up and down the screen when rotated.
  6. Verify that the channel acquires in all acquisition modes:
    • Press SHIFT, then press ACQUIRE MENU.
    • Use the side menu to select each of the three hardware acquire modes and confirm the following statements are true.
      • Sample mode displays an actively acquiring waveform on-screen (Note that there is noise present on the peaks of the square wave.).
      • Peak Detect mode displays an actively acquiring waveform on-screen with the noise present in Sample mode “peak detected”.
      • Hi Res mode (TDS 500B and 700A only) displays an actively acquiring waveform on-screen with the noise that was present in Sample mode reduced.
      • Envelope mode displays an actively acquiring waveform on-screen with the noise displayed.
      • Average mode displays an actively acquiring waveform on-screen with the noise reduced.
  7. Test all channels by repeating substeps a through e until all four input channels are verified.
  8. Remove the test hookup by disconnecting the probe from the channel input and the probe-compensation terminals.

What should happen when turning the vertical scale knob?

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.

How do you verify the time base operates?

  1. Install the test hookup and preset the oscilloscope controls:
    • 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.
  2. Initialize the oscilloscope:
    • Press save/recall SETUP.
    • Press the main-menu button Recall Factory Setup, then press the side-menu button OK Confirm Factory Init.
  3. Modify default settings:
    • Set the vertical SCALE to 200 mV.
    • Set the horizontal SCALE to 200 s.
    • Press CLEAR MENU to remove the menus from the screen.
  4. Verify the time base operates by confirming the following statements:
    • One period of the square-wave probe-compensation signal is about five horizontal divisions on-screen for the 200 s horizontal scale setting.
    • Rotating the horizontal SCALE knob clockwise expands the waveform on-screen (more horizontal divisions per waveform period), counter-clockwise rotation contracts it, and returning the horizontal scale to 200 s returns the period to about five divisions.
    • The horizontal POSITION knob positions the signal left and right on-screen when rotated.
  5. Remove the test hookup by disconnecting the probe from the channel input and the probe-compensation terminals.

What should happen when rotating the horizontal scale knob?

Rotating the horizontal SCALE knob clockwise expands the waveform on-screen (more horizontal divisions per waveform period), counter-clockwise rotation contracts it, and returning the horizontal scale to 200 s returns the period to about five divisions.

How do you verify the main and delayed trigger systems?

  1. Install the test hookup and preset the oscilloscope controls:
    • 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.
  2. Initialize the oscilloscope:
    • Press save/recall SETUP.
    • Press the main-menu button Recall Factory Setup.
    • Press the side-menu button OK Confirm Factory Init.
  3. Modify default settings:
    • Set the vertical SCALE to 200 mV.
    • Set the horizontal SCALE for the M (main) time base to 200 s.
    • Press TRIGGER MENU.
    • Press the main-menu button Mode & Holdoff.
    • Press the side-menu button Normal.
    • Press CLEAR MENU to remove the menus from the screen.
  4. Verify that the main trigger system operates by confirming the following statements:
    • The trigger level readout for the main trigger system changes with the trigger-LEVEL knob.
    • 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.)
    • Pressing SET LEVEL TO 50% triggers the signal that you just left untriggered. (Leave the signal triggered.)
  5. Verify that the delayed trigger system operates:
    • Select the delayed time base:
      • Press HORIZONTAL MENU.
      • Press the main-menu button Time Base.
      • Press the side-menu button Delayed Triggerable, then press the side-menu button Delayed Only.
      • Set the horizontal SCALE for the D (delayed) time base to 200 s.
    • Select the delayed trigger level menu:
      • Press SHIFT, then press DELAYED TRIG.
      • Press the main-menu button Level, then press the side-menu button Level.
    • Confirm the following statements are true:
      • The trigger-level readout for the delayed trigger system changes as you turn the general purpose knob.
      • As you rotate the general purpose knob, the square-wave probe-compensation signal can become triggered and untriggered. (Leave the signal untriggered, which is indicated by the display not updating.)
      • Pressing the side-menu button Set to 50% triggers the probe-compensation signal that you just left untriggered. (Leave the signal triggered.)
    • Verify the delayed trigger counter:
      • Press the main-menu button Delay by Time.
      • Use the keypad to enter a delay time of 1 second. Press 1, then press ENTER.
      • Verify that the trigger READY indicator on the front panel flashes about once every second as the waveform is updated on-screen.
  6. Remove the test hookup by disconnecting the probe from the channel input and the probe-compensation terminals.

How do you verify the file system?

  1. Install the test hookup and preset the oscilloscope controls:
    • 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.
  2. Insert the test disk:
    • Insert the disk in the disk drive to the left of the monitor.
    • Position the disk so the metal shutter faces the drive.
    • 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.
    • Push the disk into the drive until it goes all the way in and clicks into place.
  3. Initialize the oscilloscope:
    • Press save/recall SETUP.
    • Press the main-menu button Recall Factory Setup.
    • Press the side-menu button OK Confirm Factory Init.
  4. Modify default settings:
    • Set the vertical SCALE to 200 mV.
    • 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.
    • Press CLEAR MENU to remove the menus from the screen.
  5. Save the settings:
    • Press SETUP.
    • Press the main-menu button Save Current Setup, then press the side-menu button To File.
    • Turn the general purpose knob to select the file to save. Choose  (or ). 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  .
    • Press the side-menu button Save To Selected File.
  6. Verify the file system works:
    • 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.
    • Press the main-menu button Recall Saved Setup, then press the side-menu button From File.
    • Turn the general purpose knob to select the file to recall. For example, if you followed the instructions above and used a blank disk, you had the oscilloscope assign the name TEK00000.SET to your file.
    • Press the side-menu button Recall From Selected File.
  • Verify that Digitizing Oscilloscope retrieved the saved setup from the disk 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.
  1. Remove the test hookup:
    • Disconnect the probe from the channel input and the probe-compensation terminals.
    • Remove the disk from the disk drive by pushing in the tab at the bottom of the disk drive.

What is the purpose of the performance tests?

The procedures are arranged in four logical groupings: Signal Acquisition System Checks, Time Base System Checks, Triggering System Checks, and Output Ports Checks. They check all the characteristics that are designated as checked in Specifications.

What should be done before performing the performance tests?

The basic procedures should be done first, then these procedures performed if desired.

What are the prerequisites for performing the performance tests?

  • The cabinet must be installed on the Digitizing Oscilloscope.
  • You must have performed and passed the procedures under Self Tests, and those under Functional Tests.
  • 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.
  • The Digitizing Oscilloscope 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 between +4 C and either +45 C for the TDS 600B or +50 C for the TDS 500B and 700A.

What are the equipment requirements for the performance tests?

The following equipment is required for the performance tests:

  • Attenuator, 10X (two required)
  • Attenuator, 5X
  • Adapter, BNC female to Clip Leads
  • Terminator, 50 
  • Cable, Precision 50  Coaxial (two required)
  • Connector, Dual-Banana (two required)
  • Connector, BNC “T”
  • Coupler, Dual-Input
  • Generator, DC Calibration
  • Generator, Calibration
  • Generator, Time Mark
  • Probe, 10X
  • 3.5 inch, 720 K or 1.44 Mbyte, DOS-compatible floppy disk
  • Generator, Video Signal
  • Oscillator, Leveled Sine wave Generator
  • Pulse Generator
  • Cable, Coaxial (two required)
  • Terminator, 75  (two required)
  • Generator, Sine Wave
  • Meter, Level and Power Sensor
  • Splitter, Power
  • Generator, Function
  • Adapter (four required)
  • Adapter
  • Generator, Leveled Sine Wave, Medium-Frequency (optional)
  • Generator, Leveled Sine Wave, High-Frequency (optional)

What are the warnings regarding the use of P6243 and P6245 probes?

The optional P6243 and P6245 probes 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 V, or errors in signal measurement will be observed. Above 40 V, damage to the probe may result. To make measurements beyond ±8 V, use either the P6139A probe (good to 500 V), or refer to the catalog for a recommended probe.

What is the purpose of the TDS 600B Test Record?

The TDS 600B Test Record is used to record the performance test results for the TDS 600B.

What information is included in the TDS 600B Test Record?

The TDS 600B Test Record includes the following information:

  • Instrument Serial Number
  • Certificate Number
  • Temperature
  • RH %
  • Date of Calibration
  • Technician
  • TDS 600B Performance Test results for:
    • Offset Accuracy for CH1, CH2, CH3 or AX1, and CH4 or AX2
    • DC Voltage Measurement Accuracy (Averaged) for CH1, CH2, CH3 or AX1, and CH4 or AX2
    • Analog Bandwidth for CH1, CH2, CH3 or AX1, and CH4 or AX2
    • Delay Between Channels
    • Time Base System
    • Trigger System Accuracy
    • Output Signal Checks
    • Probe Compensator Output Signal

What is the purpose of the TDS 500B/700A Test Record?

The TDS 500B/700A Test Record is used to record the performance test results for the TDS 500B/700A.

What information is included in the TDS 500B/700A Test Record?

The TDS 500B/700A Test Record includes the following information:

  • Instrument Serial Number
  • Certificate Number
  • Temperature
  • RH %
  • Date of Calibration
  • Technician
  • TDS 500B/700A Performance Test results for:
    • Offset Accuracy for CH1, CH2, CH3 or AX1, and CH4 or AX2
    • DC Voltage Measurement Accuracy (Averaged) for CH1, CH2, CH3 or AX1, and CH4 or AX2
    • Analog Bandwidth for CH1, CH2, CH3 or AX1, and CH4 or AX2
    • Delay Between Channels
    • Time Base System
    • Trigger System Accuracy
    • Output Signal Checks
    • Probe Compensator Output Signal

What are the prerequisites for the signal acquisition system checks?

The oscilloscope must meet the prerequisites listed on page 1–15.

How do you preset the instrument controls?

First, initialize the oscilloscope by pressing the save/recall SETUP button, then pressing the main-menu button Recall Factory Setup, then pressing the side-menu button OK Confirm Factory Init. Next, press CLEAR MENU to remove the menus from the screen. Then, modify the default settings by pressing SHIFT, then pressing ACQUIRE MENU. On the TDS 600B, press the main-menu button Mode, then press the side-menu button Average 16. On the TDS 500B and 700A, press the main-menu button Mode, then press the side-menu button Hi Res. Press CURSOR, then press the main-menu button Function, then press the side-menu button H Bars. Finally, press CLEAR MENU. Be sure to disconnect any input signals from all four channels.

How do you confirm input channels are within limits for offset accuracy at zero offset?

First, select an unchecked channel by pressing WAVEFORM OFF to remove the channel just confirmed from the display. Then, press the front-panel button that corresponds to the channel you are to confirm. Next, set the vertical scale by pressing VERTICAL MENU, then pressing the main-menu button Fine Scale. Use the keypad to enter the vertical scale. For the 1 mV setting, press 1, SHIFT, m, then ENTER. For the 101 mV setting, press 101, SHIFT, m, then ENTER. For the 1.01 V setting, press 1.01, then ENTER. Then, press CLEAR MENU. Next, display the test signal. The waveform position and offset were initialized for all channels in step 1 and are displayed as you select each channel and its vertical scale. Then, measure the test signal by aligning the active cursor over the waveform by rotating the general purpose knob. Ignore the other cursor. Then, read the measurement results at the absolute (@:) cursor readout, not the delta (:) readout on screen. Then, check against limits by checking that the measurement results are within the limits listed for the current vertical scale setting. Enter voltage on test record. Repeat the previous substeps until all vertical scale settings listed in Table 1–2, are checked for the channel under test. Finally, test all channels by repeating the substeps for all input channels.

What are the DC Offset Accuracy limits at zero setting?

  • 1 mV:
    • TDS 600B: ±2.1 mV
    • TDS 500B/700A: ±1.6 mV
  • 101 mV:
    • TDS 600B: ±75.6 mV
    • TDS 500B/700A: ±25.1 mV
  • 1.01 V:
    • TDS 600B: ±756 mV
    • TDS 500B/700A: ±251 mV

How do you disconnect the hookup?

No hookup was required.

What equipment is required to check DC voltage measurement accuracy?

  • Two dual-banana connectors
  • One BNC T connector
  • One DC calibration generator
  • Two precision coaxial cables

What are the prerequisites for checking DC voltage measurement accuracy?

The oscilloscope must meet the prerequisites listed on page 1–15.

How do you install the test hookup and preset the instrument controls?

First, hook up the test-signal source by setting the output of a DC calibration generator to 0 volts. Then, connect the output of a DC calibration generator through a dual-banana connector followed by a 50  precision coaxial cable to one side of a BNC T connector. Connect the Sense output of the generator through a second dual-banana connector followed by a 50  precision coaxial cable to the other side of the BNC T connector. Then connect the BNC T connector to CH 1. Next, initialize the oscilloscope by pressing the save/recall SETUP button, then pressing the main-menu button Recall Factory Setup, then pressing the side-menu button OK Confirm Factory Init. Then, modify the default settings by pressing SHIFT, then pressing ACQUIRE MENU. Press the main-menu button Mode, then press the side-menu button Average 16.

How do you confirm input channels are within limits for DC accuracy at maximum offset and position?

First, select an unchecked channel by pressing WAVEFORM OFF to remove the channel just confirmed from the display, then press the front-panel button that corresponds to the channel you are to confirm. Set the generator output to 0 V. Move the test hookup to the channel you selected. Next, turn on the measurement Mean for the channel by pressing MEASURE, then pressing the main-menu button Select Measrmnt for CHx. Press the side-menu button more until the menu label Mean appears in the side menu. Press the side-menu button Mean, then press CLEAR MENU. Then, set the vertical scale by setting the vertical SCALE to one of the settings listed in Table 1–3 that is not yet checked. Next, display the test signal by pressing VERTICAL MENU, then pressing the main-menu button Position. Use the keypad to set vertical position to –5 divisions. Then press the main-menu button Offset. Use the keypad to set vertical offset to the positive-polarity setting listed in the table for the current vertical scale setting. Set the generator to the level and polarity indicated in the table for the vertical scale, position, and offset settings you have made. Then, measure the test signal by pressing CLEAR MENU and reading the measurement results at the Mean measurement readout. Next, check against limits by checking that the readout for the measurement Mean readout on screen is within the limits listed for the current vertical scale and position/offset/generator settings. Enter value on test record. Repeat the previous substep, reversing the polarity of the position, offset, and generator settings as is listed in the table. Check that the Mean measurement readout on screen is within the limits listed for the current vertical scale setting and position/offset/ generator settings. Enter value on test record. Repeat the previous substeps until all vertical scale settings, listed in Table 1–3, are checked for the channel under test. Finally, test all channels by repeating the substeps for all four channels.

What are the DC Accuracy limits?

  • 5 mV:
    • Position Setting: -5 Divs
    • Offset Setting: +1 V
    • Generator Setting: +1.040 V
    • TDS 600B Accuracy Limits: +1.029 V to +1.0513 V
    • TDS 500B/700A Accuracy Limits: +1.0355 V to +1.0445 V
    • Position Setting: +5 Divs
    • Offset Setting: -1 V
    • Generator Setting: -1.040 V
    • TDS 600B Accuracy Limits: -1.0513 V to -1.029 V
    • TDS 500B/700A Accuracy Limits: -1.0445 V to -1.0355 V
  • 200 mV:
    • Position Setting: -5 Divs
    • Offset Setting: +10 V
    • Generator Setting: +11.6 V
    • TDS 600B Accuracy Limits: +11.420 V to +11.786 V
    • TDS 500B/700A Accuracy Limits: +11.5385 V to +11.6615 V
    • Position Setting: +5 Divs
    • Offset Setting: -10 V
    • Generator Setting: -11.6 V
    • TDS 600B Accuracy Limits: -11.786 V to -11.420 V
    • TDS 500B/700A Accuracy Limits: -11.6615 V to -11.5385 V
  • 1 V:
    • Position Setting: -5 Divs
    • Offset Setting: +10 V
    • Generator Setting: +18V
    • TDS 600B Accuracy Limits: +17.26 V to +18.76 V
    • TDS 500B/700A Accuracy Limits: +17.7785 V to +18.2215 V
    • Position Setting: +5 Divs
    • Offset Setting: -10 V
    • Generator Setting: -18 V
    • TDS 600B Accuracy Limits: -18.76 V to -17.26 V
    • TDS 500B/700A Accuracy Limits: -18.2215 V to -17.7785 V

How do you disconnect the hookup?

First, set the generator output to 0 V. Then, disconnect the cable from the generator output at the input connector of the channel last tested.

What equipment is required to check the Analog Bandwidth?

  • One sine wave generator
  • One level meter and power sensor
  • One power splitter
  • One female N to male BNC adapter
  • Four male N to female BNC adapters
  • Two 50  precision cables
  • Two 10X attenuators
  • Optional: One high-frequency leveled sine wave generator and its leveling head

What are the prerequisites for checking Analog Bandwidth?

See page 1–15.

How do you install the test hookup and preset the instrument controls?

First, initialize the oscilloscope by pressing save/recall SETUP, then pressing the main-menu button Recall Factory Setup, then pressing the side-menu button OK Confirm Factory Init. Next, modify the default settings by pressing TRIGGER MENU, then pressing the main-menu button Coupling, then pressing the side menu button Noise Rej. Turn the horizontal SCALE knob to 50 ns. Press SHIFT; then press ACQUIRE MENU. Press the main-menu button Mode; then press the side-menu button Average 16. Press MEASURE. Press the main-menu button High–Low Setup; then press the side-menu button Min–Max. Then, hook up the test-signal source by connecting the sine wave output of a leveled sine wave generator to CH 1. Set the output of the generator to a reference frequency of 10 MHz or less. For the optional setup using a leveled sine wave generator with a leveling head, set the generator output to 6 MHz.

How do you confirm the input channels are within limits for analog bandwidth?

First, select an unchecked channel by pressing WAVEFORM OFF to remove the channel just confirmed from display. Then, press the front-panel button that corresponds to the channel you are to confirm. Move the leveling output of the sine wave generator to the channel you selected. Next, match the trigger source to the channel selected by pressing TRIGGER MENU, then pressing the main-menu button Source, then pressing the side-menu button that corresponds to the channel selected. Then, set its input impedance by pressing VERTICAL MENU, then pressing the main-menu button Coupling. Press the side-menu  button to toggle it to the 50  setting. Then, set the vertical scale by setting the vertical SCALE to one of the settings listed in Table 1–4 not yet checked. Then, display the test signal by pressing MEASURE, then pressing the main-menu button Select Measrmnt for CHx. Press the side-menu button more, if needed, until the menu label Frequency appears in the side menu. Press the side-menu button Frequency. Press the side-menu button more until the menu label Pk-Pk appears in the side menu. Press the side-menu button Pk-Pk. Press CLEAR MENU. Set the generator output so the CHx Pk-Pk readout equals the reference amplitude in Table 1–4 that corresponds to the vertical scale set in the substep before. Press the front-panel button SET LEVEL TO 50% as necessary to trigger a stable display. Next, measure the test signal by setting the frequency of the generator, as shown on screen, to the test frequency in Table 1–4 that corresponds to the vertical scale set. Set the horizontal SCALE to the horizontal scale setting in Table 1–4 that corresponds to the vertical scale set. Press SET LEVEL TO 50% as necessary to trigger the signal. Read the results at the CHx Pk-Pk readout, which will automatically measure the amplitude of the test signal. Then, check against limits by checking that the Pk-Pk readout on screen is within the limits listed in Table 1–4 for the current vertical scale setting. Enter voltage on test record. When finished checking, set the horizontal SCALE back to the 50 ns setting. Finally, check remaining vertical scale settings against limits (optional) by repeating the previous substeps for each of the remaining scale settings listed in Table 1–4 for the channel under test. When doing the display test signal substep, skip the subparts that turn on the CHx Pk-Pk measurement until you check a new channel. Install/remove 10X attenuators between the generator leveling head and the channel input as needed to obtain the six division reference signals listed in the table. Then, test all channels by repeating the previous substeps for all four channels.

What are the Analog Bandwidth limits?

  • 100 mV:
    • Reference Amplitude: 600 mV (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 1 GHz
    • TDS 620B and 644B Test Frequency: 500 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥424 mV
  • 1 V:
    • Reference Amplitude: 5 V (5 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 1 GHz
    • TDS 620B and 644B Test Frequency: 500 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥3.535 V
  • 500 mV:
    • Reference Amplitude: 3 V (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 1 GHz
    • TDS 620B and 644B Test Frequency: 500 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥2.121 V
  • 200 mV:
    • Reference Amplitude: 1.2 V (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 1 GHz
    • TDS 620B and 644B Test Frequency: 500 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥848 mV
  • 50 mV:
    • Reference Amplitude: 300 mV (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 1 GHz
    • TDS 620B and 644B Test Frequency: 500 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥212 mV
  • 20 mV:
    • Reference Amplitude: 120 mV (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 1 GHz
    • TDS 620B and 644B Test Frequency: 500 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥84.8 mV
  • 10 mV:
    • Reference Amplitude: 60 mV (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 1 GHz
    • TDS 620B and 644B Test Frequency: 500 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥42.4 mV
  • 5 mV:
    • Reference Amplitude: 30 mV (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 750 MHz
    • TDS 620B and 644B Test Frequency: 450 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥21.2 mV
  • 2 mV:
    • Reference Amplitude: 12 mV (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 600 MHz
    • TDS 620B and 644B Test Frequency: 300 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 500 MHz ≥8.48 mV
  • 1 mV:
    • Reference Amplitude: 6 mV (6 divisions)
    • Horizontal Scale: 1 ns
    • TDS 680B, 684B, and 784A Test Frequency: 500 MHz
    • TDS 620B and 644B Test Frequency: 250 MHz
    • TDS 520B, 540B, 724A, 744A Test Frequency Limits: 450 MHz ≥4.24 mV

How do you disconnect the hookup?

Disconnect the test hook up from the input connector of the channel last tested.

What equipment is required to check delay between channels?

  • One sine wave generator
  • One precision coaxial cable
  • One 50  terminator
  • One dual-input coupler

What are the prerequisites for checking delay between channels?

See page 1–15.

How do you install the test hookup and preset the instrument controls?

First, initialize the front panel by pressing save/recall SETUP, then pressing the main-menu button Recall Factory Setup, then pressing the side-menu button OK Confirm Factory Init. Then, modify the initialized front-panel control settings by not adjusting the vertical position of any channel during this procedure. Set the horizontal SCALE to 500 ps. Press SHIFT; then press ACQUIRE MENU. Press the main-menu button Mode, and then press the side-menu button Average 16. Next, hook up the test-signal source by connecting the sine wave output of a sine wave generator to a 50  precision coaxial cable followed by a 50  termination, and a dual-input coupler. Connect the coupler to both CH 1 and CH 2.

How do you confirm all four channels are within limits for channel delay?

First, set up the generator by setting the generator frequency to 250 MHz and the amplitude for about six divisions in CH 1. Next, set the horizontal scale to 500 ps. On the TDS 784A and TDS 600B, now set it to 200 ps. On the TDS 520B, 540B, 724A, and 744A, push the front-panel ZOOM button, press the side-menu On button, set the horizontal SCALE to 250 ps, and be sure the vertical scale factor is kept at 1.0X and the horizontal scale factor is 2.0X. Then, save a CH 2 waveform by pressing CH 2. Be sure the vertical scale factor is kept at 1.0X. Then press save/recall WAVEFORM. Now, press the main-menu button Save Wfm, then press the side-menu button To Ref 2. Then, save CH 3 (AX1 on the TDS 520B, 620B, 680B, and 724A) waveform by moving the coupler from CH 2 to CH 3, so that CH 1 and CH 3 are driven. Press WAVEFORM OFF. Press CH 3. Be sure the vertical scale factor is kept at 1.0X. Then press the side-menu button To Ref 3. Next, display all test signals by pressing WAVEFORM OFF to remove CH 3 from the display. Display the live waveform. Move the coupler from CH 3 to CH 4, so that CH 1 and CH 4 are driven. Press CH 4 to display. Be sure the vertical scale factor is kept at 1.0X. Display the reference waveforms. To do this, press the front-panel button MORE. Press the main-menu buttons Ref 2 and Ref 3. Then, measure the test signal by locating the time reference points for these waveforms. Do this by first identifying the point where the rising edge of the left-most waveform crosses the center horizontal graticule line. Next, note the corresponding time reference point for the right-most waveform. Press CURSOR. Press the main-menu button Function; then press the side-menu button V Bars. Press CLEAR MENU. Align one V bar cursor to the time reference point of the left-most waveform edge and the other cursor to the time reference point of the right-most waveform edge by rotating the General Purpose knob. Read the measurement results at the : cursor readout, not the @: readout on screen. Then, check against limits by checking that the cursor readout on screen is ≤100 ps for the TDS 600B or ≤50 ps for the TDS 500B/700A. If the channel skew is within the limits, enter time on the test record and proceed to the next step. Otherwise, proceed with the steps to measure the skew from CH1 to CH2, CH1 to CH3, and CH1 to CH4 and write them down, then repeat the procedure, measure the skews again and write them down. Then, add the first CH1 to CH2 skew measurement to the second CH1 to CH2 skew measurement and divide the result by 2. Then, add the first CH1 to CH3 skew measurement to the second CH1 to CH3 skew measurement and divide the result by 2. Then, add the first CH1 to CH4 skew measurement to the second CH1 to CH4 skew measurement and divide the result by 2. Then, check that the largest of the three results is between –100 ps and + 100 ps for the TDS 600B or between –50 ps and + 50 ps for the TDS 500B/700A. Then, enter time on the test record.

What is the Delay Between Channels Worksheet?

  • CH1 to CH2 skew
    • First Measurement
    • Second Measurement
    • Add First and Second Measurements
    • Divide Sum by 2
  • CH1 to CH3 skew
    • First Measurement
    • Second Measurement
    • Add First and Second Measurements
    • Divide Sum by 2
  • CH1 to CH4 skew
    • First Measurement
    • Second Measurement
    • Add First and Second Measurements
    • Divide Sum by 2

How do you disconnect the hookup?

Disconnect the cable from the generator output at the input connectors of the channels.

What equipment is required for the Time Base System Checks?

  • One time-mark generator
  • One 50 , precision coaxial cable

What are the prerequisites for the Time Base System Checks?

See page 1–15.

How do you install the test hookup and preset the instrument controls?

First, hook up the test-signal source by connecting, through a 50  precision coaxial cable, the time-mark output of a time-mark generator to CH 1. Set the output of the generator for 10 ms markers. Next, initialize the oscilloscope by pressing save/recall SETUP, then pressing the main-menu button Recall Factory Setup, then pressing the side-menu button OK Confirm Factory Init. Then, modify the initialized front-panel control settings by setting the vertical SCALE to 200 mV (or 500 mV with the optional Tektronix TG 501A Time Mark Generator). Press VERTICAL MENU; then press the main-menu button Coupling. Press the side-menu button  to toggle it to the 50  setting. Press SET LEVEL TO 50%. Use the vertical POSITION knob to center the test signal on screen. Set the horizontal SCALE of the Main time base to 1 ms. Press TRIGGER MENU ; then press the main-menu button Mode & Holdoff. Press the side-menu button Normal.

How do you confirm Main and Delayed time bases are within limits for accuracies?

First, display the test signal by aligning the trigger T to the center vertical graticule line by adjusting the horizontal POSITION. Press HORIZONTAL MENU. Set horizontal modes by pressing the main-menu button Time Base. Press the side-menu buttons Delayed Only and Delayed Runs After Main. Then, measure the test signal by setting the horizontal SCALE of the D (delayed) time base to 500 ns for the TDS 600B or to 100 ns for the TDS 500B/700A. Set delayed time to 10 ms. Then, check long-term sample rate and delay time accuracies against limits by checking that the rising edge of the marker crosses the center horizontal graticule line at a point within either ±2.0 divisions, for the TDS 600B, or ±2.5 divisions, for the TDS 500B/700A, of center graticule. Enter number of divisions on test record.

How do you disconnect the hookup?

Disconnect the cable from the generator output at the input connector of CH 1.

What equipment is required for the Trigger System Checks?

  • One medium-frequency sine wave generator
  • One 10X attenuator
  • One 50 , precision coaxial cable

What are the prerequisites for the Trigger System Checks?

See page 1–15.

How do you install the test hookup and preset the instrument controls?

First, initialize the instrument by pressing save/recall SETUP, then pressing the main-menu button Recall Factory Setup, then pressing the side-menu button OK Confirm Factory Init. Then, modify the default setup by pressing VERTICAL MENU. Press the main-menu button Coupling; then press the side-menu  button to select 50  coupling. Set the horizontal SCALE to 10 ns on the TDS 600B and 12.5 ns on the TDS 500B/700A. Then, hook up the test-signal source by connecting the output of a medium-frequency leveled sine wave generator to CH 1. Do this through a 50  precision coaxial cable, followed by a 10X attenuator.

How do you confirm the trigger system is within time-accuracy limits for pulse-glitch or pulse-width triggering (Horizontal Scale ≤1 s)?

First, display the test signal by setting the output of the sine wave generator for a 100 MHz, five-division sine wave on screen. Press SET LEVEL TO 50%.

How do I set the trigger mode?

Press TRIGGER MENU. Then press the main-menu button Mode & Holdoff; then press the side-menu button Normal.

How do I set the upper and lower limits to ensure triggering for pulse-width triggering?

  • Press the main-menu button Type; then repeatedly press the same button until Pulse is highlighted in the menu that pops up.
  • Press the main-menu button Class; then repeatedly press the same button until Width is highlighted in the menu that pops up.
  • Press the main-menu button Trig When; then press the side-menu button Within Limits.

How do I set the upper limit to 10 ns?

Press the side-menu button Upper Limit. Use the keyboard to set the upper limit to 10 ns: press 10, then SHIFT, then n, and ENTER.

How do I set the lower limit to 2 ns?

Press the side-menu button Lower Limit. Use the keypad to set the lower limit to 2 ns.

How do I change the limits until triggering stops?

  • Press SET LEVEL TO 50%.
  • While doing the following subparts, monitor the display (it will stop acquiring) and the front-panel light TRIG (it will extinguish) to determine when triggering is lost.
  • Press the side-menu button Lower Limit.
  • Use the general-purpose knob to increase the Lower Limit readout until triggering is lost.

What should I check after the oscilloscope loses triggering when increasing the lower limit?

Check that the Lower Limit readout, after the oscilloscope loses triggering, is within 3.5 ns to 6.5 ns, inclusive.

After the oscilloscope loses triggering when increasing the lower limit, what should I do to reestablish triggering?

Use the keypad to return the Lower Limit to 2 ns and reestablish triggering.

How do I change the upper limit until triggering stops?

  • Press the side-menu button Upper Limit.
  • Use the general-purpose knob to slowly decrease the Upper Limit readout until triggering is lost.

What should I check after the oscilloscope loses triggering when decreasing the upper limit?

Check that the Upper Limit readout, after the oscilloscope loses triggering, is within 3.5 ns to 6.5 ns, inclusive.

How do I set the upper limit to 4 µs for pulse-glitch or pulse-width triggering?

Press the side-menu button Upper Limit. Use the keyboard to set the upper limit to 4 µs.

How do I set the lower limit to 500 ns for pulse-glitch or pulse-width triggering?

Press the side-menu button Lower Limit. Use the keypad to set the lower limit to 500 ns.

How do I display the test signal?

  • Set the horizontal SCALE to 5 µs.
  • Set the output of the sine wave generator for a 250 kHz, five-division sine wave on screen. Set the vertical SCALE to 20 mV (the waveform will overdrive the display).
  • Press SET LEVEL TO 50%.

How do I check against the lower limit?

  • Press the side-menu button Lower Limit.
  • Use the general-purpose knob to increase the Lower Limit readout until triggering is lost.

What should I check after the oscilloscope loses triggering when increasing the lower limit for the 250 kHz signal?

Check that the Lower Limit readout, after the oscilloscope stops triggering, is within 1.9 µs to 2.1 µs, inclusive.

How do I reestablish triggering after the oscilloscope loses triggering when increasing the lower limit for the 250 kHz signal?

Use the keypad to return the Lower Limit to 500 ns and reestablish triggering.

How do I check against the upper limit?

  • Press the side-menu button Upper Limit.
  • Use the general-purpose knob to slowly decrease the Upper Limit readout until triggering stops.

What should I check after the oscilloscope loses triggering when decreasing the upper limit for the 250 kHz signal?

Check that the Upper Limit readout, after the oscilloscope loses triggering, is within 1.9 µs to 2.1 µs, inclusive.

How do I set up the initial test hookup?

  • Set the output of the DC calibration generator to 0 volts.
  • Connect the output of the DC calibration generator, through a dual-banana connector followed by a 50 Ω precision coaxial cable, to one side of a BNC T connector.
  • Connect the Sense output of the generator, through a second dual-banana connector followed by a 50 Ω precision coaxial cable, to other side of the BNC T connector. Now connect the BNC T connector to CH 1.

How do I initialize the oscilloscope?

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

How do I display the test signal?

  • Set the vertical SCALE to 200 mV.
  • Press VERTICAL MENU, then press the main-menu button Position.
  • Set vertical position to –3 divisions (press –3, then ENTER, on the keypad). The baseline level will move down three divisions.
  • Press the main-menu button Offset.
  • Set vertical offset to +10 volts with the keypad. The baseline level will move off screen.
  • Set the standard output of the DC calibration generator equal to the offset (+10 volts). The DC test level will appear on screen.

How do I measure the test signal?

  • Press SET LEVEL TO 50%.
  • Press TRIGGER MENU.
  • Read the measurement results from the readout below the label Level in the main menu, not the trigger readout in the graticule area.

What should I check for the Level readout in the main menu?

Check that the Level readout in the main menu is within 9.863 V to 10.137 V, inclusive, for the TDS 600B or is within 9.9393 V to 10.1147 V, inclusive, for the TDS 500B/700A.

How do I check the Level readout with a negative slope?

  • Press the main-menu button Slope; then press the side-menu button for the negative slope.
  • Repeat the substep b. which involves the steps to measure the test signal.
  • CHECK that the Level readout in the main menu is within 9.863 V to 10.137 V, inclusive, for the TDS 600B or is within 9.9393 V to 10.1147 V, inclusive, for the TDS 500B/700A.

How do I select the Delayed time base?

  • Press HORIZONTAL MENU.
  • Press the main-menu button Time Base.
  • Press the side-menu buttons Delayed Only and Delayed Trigger-able.
  • Set D (delayed) horizontal SCALE to 500 µs.

How do I select the Delayed trigger system?

  • Press SHIFT; then press the front-panel DELAYED TRIG button.
  • Press the main-menu button Level.

How do I measure the test signal for the Delayed trigger system?

Press the side-menu button SET TO 50%. Read the measurement results in the side (or main) menu below the label Level.

What should I check for the Level readout in the side menu for the Delayed trigger system?

Check that the Level readout in the side menu is within 9.863 V to 10.137 V, inclusive, for the TDS 600B or is within 9.9393 V to 10.1147 V, inclusive, for the TDS 500B/700A.

How do I check the Level readout with a negative slope for the Delayed trigger system?

  • Press the main-menu button Slope; then press the side-menu button for the negative slope.
  • Press the main-menu button Level. Repeat substep c (measure the test signal).
  • Check that the Level readout in the side menu is within 9.863 V to 10.137 V, inclusive, for the TDS 600B or is within 9.9393 V to 10.1147 V, inclusive, for the TDS 500B/700A.

How do I modify the initialized front-panel control settings?

  • Set the horizontal SCALE for the M (main) time base to 20 ns on the TDS 600B or 25 ns on the TDS 500B/700A.
  • Press HORIZONTAL MENU; then press the main-menu button Time Base.
  • Press the side-menu button Delayed Only; then press the side-menu button Delayed Triggerable.
  • Set the horizontal SCALE for the D (delayed) time base to 20 ns on the TDS 600B or 25 ns on the TDS 500B/700A; then press the side-menu button Main Only.
  • Press TRIGGER MENU; then press the main-menu button Mode & Holdoff. Press the side-menu button Normal.
  • Press VERTICAL MENU; then press the main-menu button Coupling. Press the side-menu button Ω to select the 50 Ω setting.
  • Press SHIFT; then press ACQUIRE MENU. Press the main-menu button Mode; then press the side-menu button Average 16.

How do I hook up the test-signal source?

Connect the signal output of a medium-frequency sine wave generator to a BNC T connector. Connect one output of the T connector to CH 1 through a 50 Ω precision coaxial cable. Connect the other output of the T connector to the AUX TRIG INPUT at the rear panel.

How do I display the test signal for the 50 MHz sensitivity test?

  • Set the generator frequency to 50 MHz.
  • Press MEASURE.
  • Press the main-menu button High-Low Setup; then press the side-menu button Min-Max.
  • Press the main-menu button Select Measrmnt for Ch1.
  • Press the side-menu button –more– until Amplitude appears in the side menu. Press the side-menu button Amplitude.
  • Press SET LEVEL TO 50%.
  • Press CLEAR MENU.
  • Set the test signal amplitude for about three and a half divisions on screen. Now fine adjust the generator output until the CH 1 Amplitude readout indicates the amplitude is 350 mV.
  • Disconnect the 50 Ω precision coaxial cable at CH 1 and reconnect it to CH 1 through a 10X attenuator.

How do I check the Main trigger system for stable triggering at limits?

  • Read the definition: A stable trigger is one that is consistent; that is, one that results in a uniform, regular display triggered on the selected slope (positive or negative). This display should not have its trigger point switching between opposite slopes, nor should it roll across the screen. At horizontal scale settings of 2 ms/division and faster, TRIG’D will remain constantly lighted. It will flash for slower settings.
  • Press TRIGGER MENU; then press the main-menu button Slope.
  • Press SET LEVEL TO 50%. Adjust the TRIGGER LEVEL knob so that the TRIG’D light is on. Set the level to near the middle of the range where the TRIG’D light is on.
  • Check that the trigger is stable for the test waveform on both the positive and negative slopes. Use the side menu to switch between trigger slopes.

How do I check the Delayed trigger system for stable triggering at limits?

  • Press HORIZONTAL MENU; then press the main-menu button Time Base. Press the side-menu button Delayed Only; then press Delayed Triggerable in the same menu.
  • Press SHIFT; then press DELAYED TRIG. Press the main-menu button Level.
  • Press the side-menu button SET TO 50%.
  • Check that a stable trigger is obtained for the test waveform for both the positive and negative slopes of the waveform. Use the TRIGGER LEVEL knob to stabilize the Main trigger. Use the general-purpose knob to stabilize the Delayed trigger. Press the main-menu button Slope; then use the side menu to switch between trigger slopes.

How do I set up the test signal for the AUX trigger input?

  • Remove the 10X attenuator and reconnect the cable to CH 1.
  • Set the test signal amplitude for about 2.5 divisions on screen.
  • Fine adjust the generator output until the CH 1 Amplitude readout indicates the amplitude is 250 mV.

How do I check the AUX trigger source for stable triggering at limits?

  • Use the definition for stable trigger from step 2.
  • Press TRIGGER MENU; then press the main-menu button Source.
  • Press the side-menu button –more– until the side-menu label DC Aux appears; then press DC Aux.
  • Press SET LEVEL TO 50%.
  • Check that a stable trigger is obtained for the test waveform on both the positive and negative slopes. Press the main-menu button Slope; then use the side menu to switch between trigger slopes. Use the TRIGGER LEVEL knob to stabilize the trigger if required.
  • Leave the Main trigger system triggered on the positive slope of the waveform before proceeding to the next check.
  • Press the main-menu button Source; then press the side-menu button –more– until CH 1 appears. Press CH 1.

How do I set the Main and Delayed Horizontal Scales for the full bandwidth trigger sensitivity test?

  • Set the horizontal SCALE to 500 ps for the M (Main) time base.
  • Press HORIZONTAL MENU. Now press the main-menu button Time base; then press the side-menu button Delayed Triggerable.
  • Press the side-menu button Delayed Only.
  • Set the horizontal SCALE to 500 ps for the D (Delayed) time base. Press the side-menu button Main Only.

How do I display the test signal for the full bandwidth trigger sensitivity test?

  • Set the generator frequency to full bandwidth (for TDS 680B, 684B, & TDS 784A = 1 GHz, for 520B, 540B, 620B, 644B, 724A, & 744A = 500 MHz).
  • Set the test signal amplitude for about five divisions on screen. Now fine adjust the generator output until the CH 1 Amplitude readout indicates the amplitude is 500 mV.
  • Disconnect the leveling head at CH 1 and reconnect it to CH 1 through a 5X attenuator.
  • Repeat step 2, substeps b and c only, since only the full bandwidth is to be checked here.

How do I set up the test signal for the output signal checks?

  • Connect the standard amplitude output of a calibration generator through a 50 Ω precision coaxial cable to CH 3 (AX1 on the TDS 520B, 620B, 680B, or 724A).
  • Set the output of the calibration generator to 0.500 V.
  • Connect the Main Trigger Out at the rear panel to CH 2 through a 50 Ω precision cable.

How do I modify the initialized front-panel control settings for output signal checks?

  • Set the horizontal SCALE to 200 µs.
  • Press SHIFT; then press ACQUIRE MENU.
  • Press the main-menu button Mode; then press the side-menu button Average.
  • Select 64 averages using the keypad or the general-purpose knob.

How do I display the test signal for checking the Main and Delayed Trigger outputs for logic levels?

  • Press WAVEFORM OFF to turn off CH 1.
  • Press CH 2 to display that channel.
  • Set the vertical SCALE to 1 V.
  • Use the vertical POSITION knob to center the display on screen.

How do I measure logic levels?

  • Press MEASURE; then press the main-menu button Select Measurement for Ch2.
  • Select high and low measurements. To do this, repeatedly press the side-menu button –more– until High and Low appear in the side menu. Press both side-menu buttons High and Low.

What should I check for the Main Trigger output against limits?

  • Check that the Ch2 High readout is ≥2.5 volts and that the Ch2 Low readout is ≤0.7 volts.
  • Press VERTICAL MENU; then press the main-menu button Coupling. Now press the side-menu button Ω to toggle it to the 50 Ω setting.
  • Check that the Ch2 High readout is ≥1.0 volt and that the Ch2 Low readout ≤0.25 volts.

How do I check the Delayed Trigger output against limits?

  • Move the precision 50 Ω cable from the rear-panel Main Trigger Output BNC to the rear-panel Delayed Trigger Output BNC.
  • Check that the Ch2 High readout is ≥1.0 volt and that the Ch2 Low readout ≤0.25 volts.
  • Press the side-menu button Ω to select the 1 MΩ setting.
  • Press CLEAR MENU.
  • Check that the Ch2 High readout is ≥2.5 volts and that the Ch2 Low readout is ≤0.7 volts.

How do I measure gain for CH 3 (Ax1 on TDS 520B, 620B, 680B, and TDS 724A)?

  • Move the precision 50 Ω cable from the rear-panel DELAYED TRIGGER OUTPUT BNC to the rear-panel SIGNAL OUT BNC.
  • Push TRIGGER MENU.
  • Press the main-menu button Source.
  • Press the side-menu button Ch3 (Ax1 on TDS 520B, 620B, 680B, and TDS 724A).
  • Set vertical SCALE to 100 mV.
  • Press SET LEVEL TO 50%.
  • Press MEASURE; then press the main-menu button Select Measrmnt for Ch2.
  • Repeatedly press the side-menu button –more– until Pk-Pk appears in the side menu. Press the side-menu button Pk-Pk.
  • Press CLEAR MENU.

What should I check for the CH 3 (Ax1 on TDS 520B, 620B, 680B, and TDS 724A) output gain?

  • Check that the readout Ch2 Pk-Pk is between 80mV and 120 mV, inclusive, for the TDS 600B or is between 88mV and 132 mV, inclusive, for the TDS 500B/700A.
  • Press VERTICAL MENU; then press the side-menu button Ω to toggle to the 50 Ω setting.
  • Press CLEAR MENU.
  • Check that the readout Ch2 Pk-Pk is between 40 mV and 60 mV, inclusive, for the TDS 600B or is between 44mV and 66 mV, inclusive, for the TDS 500B/700A.

How do I hook up the test-signal for probe compensator output check?

  • Connect one of the 50 Ω cables to CH 1.
  • Connect the other end of the cable to the female BNC-to-clips adapter.
  • Connect the red clip on the adapter to the PROBE COMPENSATION SIGNAL on the front panel; connect the black clip to PROBE COMPENSATION GND.

How do I modify the initialized front-panel control settings for the probe compensator output check?

  • Set the horizontal SCALE to 200 µs.
  • Press SET LEVEL TO 50%.
  • Use the vertical POSITION knob to center the display on screen.
  • Press SHIFT; then press ACQUIRE MENU.
  • Press the main-menu button Mode; then press the side-menu button Average.
  • Select 128 averages using the keypad or the general-purpose knob.

How do I measure the frequency of the probe compensation signal?

  • Press MEASURE; then press the main-menu button Select Measrmnt for Ch1.
  • Repeatedly press the side-menu button –more– until Frequency appears in the side menu. Press the side-menu button Frequency.

What should I check for the probe compensator frequency?

Check that the CH 1 Freq readout is within 950 Hz to 1.050 kHz, inclusive.

How do I save the probe compensation signal in reference memory?

  • Press SAVE/RECALL WAVEFORM; then press the main-menu button Save Wfm Ch 1.
  • Press the side-menu button To Ref 1 to save the probe compensation signal in reference 1.
  • Disconnect the cable from CH 1 and the clips from the probe compensation terminals.
  • Press MORE; then press the main-menu button Ref 1 to display the stored signal.
  • Press CH 1.

How do I hook up the DC standard source for the probe compensator amplitude check?

  • Set the output of a DC calibration generator to 0 volts.
  • Connect the output of a DC calibration generator through a dual-banana connector followed by a 50 Ω precision coaxial cable to one side of a BNC T connector.
  • Connect the Sense output of the generator through a second dual-banana connector followed by a 50 Ω precision coaxial cable to the other side of the BNC T connector. Now connect the BNC T connector to CH 1.

How do I measure the amplitude of the probe compensation signal?

  • Press SHIFT; then press ACQUIRE MENU. Press the side-menu button AVERAGE then enter 16 using the keypad or the general-purpose knob.
  • Adjust the output of the DC calibration generator until it precisely overlaps the top (upper) level of the stored probe compensation signal. (This value will be near 500 mV).
  • Record the setting of the DC generator.
  • Adjust the output of the DC calibration generator until it precisely overlaps the base (lower) level of the stored probe compensation signal. (This value will be near zero volts).
  • Record the setting of the DC generator.
  • Press CLEAR MENU to remove the menus from the display.

What should I check for the probe compensator amplitude?

Subtract the value just obtained (base level) from that obtained previously (top level). Check that the difference obtained is within 495 mV to 505 mV, inclusive.

What equipment is required for the Option 05 Video Trigger Checks?

The equipment required includes a PAL signal source, a 60 Hz sine wave generator, a pulse generator, two 75 Ω cables, two 75 Ω terminators, one BNC T connector, a 50 Ω cable, and a 50 Ω terminator.

What are the prerequisites for the Performance Tests?

The prerequisites include running the signal path compensation routine.

How do you set up the digitizing oscilloscope to factory defaults?

To set up the digitizing oscilloscope to factory defaults:

  • Press the save/recall SETUP button.
  • Press the main-menu Recall Factory Setup button.
  • Press the side-menu OK Confirm Factory Init button.
  • Wait for the Clock Icon to leave the screen.
  • Confirm that the digitizing oscilloscope is set up with Channel: CH1, Volt/div: 100 mV, and Horizontal scale: 500 µs/div.

How do you set up the digitizing oscilloscope for TV triggers?

To set up the digitizing oscilloscope for TV triggers:

  • Press the TRIGGER MENU button.
  • Press the main-menu Type pop-up until you select Video.
  • Press the main-menu Standard pop-up until you select 625/PAL.
  • Press the main-menu Line button.
  • Use the keypad to set the line number to 7 (press 7, then ENTER).
  • Press the VERTICAL MENU button.
  • Press the main-menu Bandwidth button.
  • Select 250 MHz from the side menu.
  • Press the main-menu Fine Scale button.
  • Use the keypad to set the fine scale to 282mV (press 282, SHIFT, m, then ENTER).
  • Press the HORIZONTAL MENU button.
  • Press the main-menu Horiz Scale button.
  • Use the keypad to set the horizontal scale to 200 ns (press 200, SHIFT, n, then ENTER).

How do you set up the equipment for the Jitter Test?

To set up the equipment for the Jitter Test:

  • Connect one of the rear panel composite outputs marked COMPST on the TSG121 through a 75 Ω cable and a 75 Ω terminator to the CH1 input of the TDS.
  • Press the 100% FIELD control of the PAL signal source.

What should you check after setting up the Jitter Test?

Check that the oscilloscope lights up its front panel TRIG’D LED and it displays the waveform on the screen.

How do you set up the oscilloscope for the Jitter Test?

To set up the oscilloscope for the Jitter Test:

  • Press SHIFT; then press ACQUIRE MENU.
  • Press the main-menu Mode button.
  • Select the side-menu Average. It should be already set to 16.
  • Press the main-menu Create Limit Test Template button.
  • Press the side-menu V Limit button.
  • Use the keypad to set V Limit to 180 mdiv (press 180, SHIFT, m, then ENTER).
  • Press the side-menu OK Store Template button.
  • Press MORE.
  • Press the main-menu Ref1 button.
  • Press CH1.
  • Press SHIFT; then press ACQUIRE MENU.
  • Press the main-menu Limit Test Setup button.
  • Toggle the side-menu Limit Test to ON.
  • Toggle the side-menu Ring Bell if Condition Met to ON.
  • Press the main-menu Mode button.
  • Press the side-menu Envelope.
  • Use the keypad to set envelope to use 100 acquisitions (press 100, then ENTER).
  • Press the main-menu Stop After button.
  • Press the side-menu Single Acquisition Sequence button.

What should you confirm after setting up the Jitter Test?

Confirm that the oscilloscope successfully makes 100 acquisitions. If not successful, the oscilloscope bell will ring. When the word Run in the top left corner of the display changes to STOP, the test is complete.

What should you do after completing the Jitter Test?

  • Press the main-menu Limit Test Setup button.
  • Toggle the side-menu Ring Bell if Condition Met to OFF.
  • Toggle the side-menu Limit Test to OFF.

How do you set up the oscilloscope for the Triggered Signal Test?

To set up the oscilloscope for the Triggered Signal Test:

  • Press MORE.
  • Press WAVEFORM OFF.
  • Press HORIZONTAL MENU.
  • Use the keypad to set horizontal scale (/div) to 50 µs (press 50, SHIFT, µ, then ENTER).
  • Press SHIFT; then press ACQUIRE MENU.
  • Press the main-menu Stop After button.
  • Press the side-menu RUN/STOP button only.
  • Press the main-menu Mode button.
  • Press the side-menu Sample.
  • Press RUN/STOP.
  • Press VERTICAL MENU.
  • Use the keypad to set fine scale to 300 mV (press 300, SHIFT, m, then ENTER).

What should you confirm after setting the fine scale to 300mV?

Confirm that the TRIG’D LED stays lighted and that the waveform on screen is stable. Also, confirm that the waveform on the screen has one positive pulse and a number of negative pulses.

What should you do after the previous confirmation?

Use the keypad to set the fine scale to 75 mV (press 75, SHIFT, m, then ENTER).

What should you confirm after setting the fine scale to 75mV?

Confirm that the TRIG’D LED stays lighted and that the waveform on screen is stable. Also, confirm that the waveform on the screen has one positive pulse and a number of negative pulses.

What is the next step after completing the Triggered Signal Range Test?

Disconnect all test equipment from the digitizing oscilloscope.

How do you set up the oscilloscope for the 60 Hz Rejection Test?

  • Use the keypad to set the Ch1 Fine Scale to 282 mV (press 282, SHIFT m, then ENTER).
  • Press WAVEFORM OFF.
  • Press CH2.
  • Press VERTICAL MENU.
  • Use the keypad to set the fine scale to 2 V (press 2, then ENTER).
  • Press HORIZONTAL MENU.
  • Use the keypad to set the horizontal scale (/div) to 5 ms (press 5, SHIFT, m, then ENTER).

How do you set up the 60 Hz signal generator?

To set up the 60 Hz signal generator:

  • Connect the output of the signal generator to the CH2 input through a 50 Ω cable.
  • Adjust the signal generator for three vertical divisions of 60 Hz signal. The signal will not be triggered, and it will run free.

How do you check 60 Hz rejection?

To check 60 Hz rejection:

  • Use the keypad to set the horizontal scale (/div) to 50 µs (press 50, SHIFT, µ, then ENTER).
  • Reconnect the output of the signal generator.
  • Connect the composite signal connector of the PAL signal source (labeled COMPST on the TSG 121) to a 75 Ω cable and a 75 Ω terminator.
  • Connect both signals to the CH1 input through a BNC T.
  • Press VERTICAL MENU.
  • If needed, press the main-menu Fine Scale button.
  • Use the keypad to set fine scale to 500 mV (press 500, SHIFT, m, then ENTER).
  • Connect another composite signal connector of the PAL signal source (labeled COMPST on the TSG 121) through a 75 Ω cable and a 75 Ω terminator to the CH2 input.

What should you confirm when checking 60 Hz rejection?

Confirm that the TRIG’D LED stays lighted and that the waveform on screen is stable. Also, confirm that the waveform on the screen has one positive pulse and a number of negative pulses.

What is the next step after checking the 60 Hz rejection?

Disconnect all test equipment from the digitizing oscilloscope.

How do you set up the oscilloscope for the Line Count Accuracy Test?

To set up the oscilloscope for the Line Count Accuracy Test:

  • Press WAVEFORM OFF.
  • Press CH1.
  • Press HORIZONTAL MENU.
  • Press the main-menu Record Length button.
  • Press the side-menu –more– until you see the appropriate menu.
  • Press the side-menu 5000 points in 100divs.
  • Press the main-menu Horiz Scale (/div) button.
  • Use the keypad to set the horizontal scale to 200 ns (press 200, SHIFT, n, then ENTER).

How do you check Line Count Accuracy?

  • Connect a composite output signal from the rear of the PAL signal source (labeled COMPST on the TSG 121) to the CH1 input through a 75 Ω cable and a 75 Ω terminator.
  • Press the main-menu Trigger Position button.
  • Press the side-menu to Set to 50%.
  • Press the main-menu to Horiz Pos.
  • Press the side-menu to Set to 50%.
  • Use the HORIZONTAL POSITION knob to move the falling edge of the sync pulse to two divisions to the left of center screen.
  • Press CURSOR.
  • Press the main-menu Function button.
  • Press the side-menu V Bars.
  • Using the General Purpose knob, place the left cursor directly over the trigger ‘T’ icon.
  • Press SELECT.
  • Turn the General Purpose knob to adjust the right cursor for a cursor delta reading of 6.780us.
  • Use the HORIZONTAL POSITION knob to position the right cursor to center screen.
  • Verify that the cursor is positioned on a positive slope of the burst signal.

What do you do after completing the Line Count Accuracy Test?

  • Disconnect all test equipment from the digitizing oscilloscope.
  • Turn off cursors by pressing CURSOR, then the main-menu Function button, and, finally, Off from the side menu.

How do you set up the digitizing oscilloscope for the Sync Duty Cycle Test?

To set up the digitizing oscilloscope for the Sync Duty Cycle Test:

  • Press TRIGGER MENU.
  • Press the Standard pop-up to select FlexFmt. Trigger Type should already be set to Video.
  • Press the main-menu Setup button.
  • Press the side-menu Field Rate.
  • Use the keypad to set the field rate to 60.05 Hz (press 60.05, then ENTER).
  • Press the side-menu Lines.
  • Use the keypad to set the field rate to 793 lines (press 793, then ENTER).
  • Press the side-menu Fields.
  • Use the keypad to set the number of fields to 1 (press 1, then ENTER).
  • Press the side-menu Sync Width.
  • Use the keypad to set the width to 400 ns (press 400, SHIFT, n, then ENTER).
  • Press the side-menu –more– 1 of 2. Then press V1 Start Time.
  • Use the keypad to set V1 start time to 10.10 µs (press 10.10, SHIFT, µ, then ENTER).
  • Press the side-menu V1 Stop Time.
  • Use the keypad to set V1 stop time to 10.50 µs (press 10.50, SHIFT, µ, then ENTER).
  • Press the main-menu Type pop-up to select Edge.
  • Press HORIZONTAL MENU.
  • Press the main-menu Record Length button.
  • Select the side-menu 1000 points in 20div. If needed, first press the side-menu –more– until you see the appropriate side-menu item.
  • Turn the HORIZONTAL POSITION knob to position the trigger ‘T’ two divisions to the left of the center screen.
  • Press MEASURE.
  • If needed, press the main-menu Select Measrmnt button.
  • Press the side-menu Negative Width.
  • Press the side-menu Period.

How do you set up the pulse generator for the Sync Duty Cycle Test?

To set up the pulse generator for the Sync Duty Cycle Test:

  • Set PULSE DURATION to 50 ns.
  • Set PERIOD to 10 µs.
  • Set OUTPUT (VOLTS) to –1 for LOW LEVEL and +1 for HIGH LEVEL.
  • Depress the COMPLEMENT button.
  • Be sure BACK TERM is depressed (in).

How do you check the Sync Duty Cycle?

To check the Sync Duty Cycle:

  • Connect the pulse generator through a 50 Ω cable and a 50 Ω terminator to the oscilloscope CH1 input.
  • Turn the pulse generator OUTPUT (VOLTS) control until the signal on the oscilloscope shows a one division negative going pulse. You may need to adjust the trigger level control to obtain a stable trigger.
  • Turn the pulse generator PULSE DURATION variable control to adjust the negative pulse so the oscilloscope’s CH1 – Width measurement displays 400ns +/-10 ns.
  • Turn the HORIZONTAL SCALE knob to set the oscilloscope time base to 5µs/div.
  • Turn the pulse generator PERIOD variable control to adjust the period until the oscilloscope CH1 Period measurement reads 21.000µs –25/+50 ns.
  • The pulse duration and period adjustments are critical in making this measurement. If the pulse duration and/or the duty cycle are not stable, the FLEXFMT function may not function.

What do you do after adjusting the pulse duration and the period?

  • Press TRIGGER MENU.
  • Press the main-menu Type pop-up until you select Video.
  • If the TRIG’D LED is not lighted, check that the CH1 – Width and CH1 Period measurements are adjusted correctly.
  • Confirm that the setup is correct and the oscilloscope will trigger.
  • Confirm that the TRIG’D LED is lighted and the waveform is stable.
  • Disconnect the signal source from CH1, wait a few seconds, then reconnect the signal.
  • Confirm that the TRIG’D LED is lighted and the waveform is stable.
  • Press Sync Polarity.
  • Press Pos Sync.
  • Push the pulse generator COMPLEMENT button out.
  • Confirm that the TRIG’D LED is lighted and the waveform is stable.
  • Disconnect the signal source from CH1, wait a few seconds, then reconnect the signal.
  • Confirm that the TRIG’D LED is lighted and the waveform is stable.
  • Disconnect all test equipment from the digitizing oscilloscope.
  • Press save/recall SETUP, the main-menu button Recall Factory Setup, and the side-menu OK Confirm Factory Init.

What equipment is required for the Sine Wave Generator Leveling Procedure?

The equipment required includes a sine wave generator, a level meter and power sensor, a power splitter, two male N to female BNC adapters, and one precision coaxial cable.

How do you install the test hookup for Sine Wave Generator Leveling?

Connect the equipment as shown in Figure 1–41.

How do you set the sine wave generator?

  • Set the sine wave generator to a reference frequency of 10 MHz.
  • Adjust the sine wave generator amplitude to the required number of divisions as measured by the digitizing oscilloscope.

How do you record the reference level for the Sine Wave Generator Leveling?

Note the reading on the level meter.

How do you set the generator to the new frequency and reference level?

  • Change the sine wave generator to the desired new frequency.
  • Input the correction factor for the new frequency into the level meter.
  • Adjust the sine wave generator amplitude until the level meter again reads the value noted in step 3. The signal amplitude is now correctly set for the new frequency.

What equipment is required for Maximum Amplitude procedure?

The equipment required includes a sine wave generator, a level meter and power sensor, two male N to female BNC adapters, and two precision coaxial cables.

How do you install the test hookup for Maximum Amplitude procedure?

Connect the equipment as shown in Figure 1–42 (start with the sine wave generator connected to the digitizing oscilloscope).

How do you set the generator for Maximum Amplitude procedure?

  • Set the sine wave generator to a reference frequency of 10 MHz.
  • Adjust the sine wave generator amplitude to the required number of divisions as measured by the digitizing oscilloscope.

How do you record the reference level for the Maximum Amplitude procedure?

  • Disconnect the sine wave generator from the digitizing oscilloscope.
  • Connect the sine wave generator to the power sensor.
  • Note the level meter reading.

How do I set the generator to a new frequency and reference level?

  • Change the sine wave generator to the desired new frequency.
  • Input the correction factor for the new frequency into the level meter.
  • Adjust the sine wave generator amplitude until the level meter again reads the value noted in step 3. The signal amplitude is now correctly set for the new frequency.
  • Disconnect the sine wave generator from the power sensor.
  • Connect the sine wave generator to the digitizing oscilloscope.

How do I control the functions of the oscilloscope?

Use a combination of front-panel buttons, knobs, and on-screen menus to control the many functions of the oscilloscope.

How are the front-panel controls grouped?

The front-panel controls are grouped according to function: vertical, horizontal, trigger, and special.

How do I set a function that I adjust often?

Set a function you adjust often, such as vertical positioning or the time base setting, directly by its own front-panel knob.

How do I set a function that I change less often?

Set a function you change less often, such as vertical coupling or horizontal mode, indirectly using a selected menu.

How do I display a main menu of related functions?

Pressing one (sometimes two) front-panel button(s), such as vertical menu, displays a main menu of related functions, such as coupling and bandwidth, at the bottom of the screen.

How do I display a side menu of settings for a function?

Pressing a main-menu button, such as coupling, displays a side menu of settings for that function, such as AC, DC, or GND (ground) coupling, at the right side of the screen.

How do I select a setting?

Pressing a side-menu button selects a setting such as DC.

What do on-screen readouts help me keep track of?

On-screen readouts help you keep track of the settings for various functions, such as vertical and horizontal scale and trigger level. Some readouts use the cursors or the automatic parameter extraction feature (called measure) to display the results of measurements made or the status of the instrument.

How do I assign the general purpose knob to adjust a selected parameter function?

Use the same method as for selecting a function, except the final side-menu selection assigns the general purpose knob to adjust some function, such as the position of measure-ment cursors on screen, or the setting for a channel fine gain.

How do I more quickly change parameters?

More quickly change parameters by toggling the SHIFT button.

What is a GUI and how does it help me?

The user interface also makes use of a GUI, or Graphical User Interface, to make setting functions and interpreting the display more intuitive. Some menus and status are displayed using iconic representations of function settings, such as those shown here for full, 250 MHz and 20 MHz bandwidth. Such icons allow you to more readily determine status or the available settings.

What are the features of the signal acquisition system?

The signal acquisition system provides four, full-featured vertical channels with calibrated vertical scale factors from 1 mV to 10 V per division. All channels can be acquired simultaneously. Each of the full-featured channels can be displayed, vertically positioned, and offset, can have their bandwidth limited (250 MHz or 20 MHz) and their vertical coupling specified. Fine gain can also be adjusted.

Besides the four channels, what else can be displayed?

Besides these channels, up to three math waveforms and four reference wave-forms are available for display.

What is a math waveform?

A math waveform results when you specify dual waveform operations, such as add, on any two channels.

What is a reference waveform?

A reference waveform results when you save a waveform in a reference memory.

What are the three horizontal display modes?

There are three horizontal display modes: main only, main intensified, and delayed only.

What does the “Fit to Screen” feature do?

A feature called “Fit to Screen” allows you to view entire waveform records within the 10 division screen area. Waveforms are compressed to fit on the screen.

What are the Record Length vs. Divisions per Record, Samples per Division and Sec/Div Sequence, when the Fit to Screen is OFF?

Record Length Divisions per Record Sample/Division (Sec/Div Sequence)
500 10 divs 50 (1–2–5)
1000 20 divs 50 (1–2–5)
2500 50 divs 50 (1–2–5)
5000 100 divs 50 (1–2–5)
15000 300 divs 50 (1–2–5)
50000 (TDS 500B/700A only) 1,000 divs 50 (1–2–5)
75000 (TDS 500B/700A opt. 1M only) 1,500 divs 50 (1–2–5)
100000 (TDS 500B/700A opt. 1M only) 2,000 divs 50 (1–2–5)
130000 (TDS 500B/700A opt. 1M only) (for TDS 520B & 724A, 1 or 2 channels only) 2,600 divs 50 (1–2–5)
250000 (TDS 520B/724A opt. 1M only, 1 channel, TDS 540B, 744A, 784A opt. 1M only, 1 or 2 channels)) 5,000 divs 50 (1–2–5)
500000 (TDS 540B, 744A, 784A opt. 1M only, 1 channel) 10,000 divs 50 (1–2–5)
.

What happens when the “Fit to Screen” feature is ON?

When the “Fit to Screen” feature is ON, the Sample/Div & Sec/Div Sequence varies.

How can the delayed only display and the intensified zone on the main intensified display be delayed?

Both the delayed only display and the intensified zone on the main intensified display may be delayed by time with respect to the main trigger. Both can be set to display immediately after the delay (delayed runs after main mode). The delayed display can also be set to display at the first valid trigger after the delay (delayed-triggerable modes). The delayed display (or the intensified zone) may also be delayed by a selected number of events. In this case, the events source is the delayed-trigger source. The delayed trigger can also be set to occur after a number of events plus an amount of time.

What trigger signals are recognized by the triggering system?

The triggering system supports a varied set of features for triggering the signal-acquisition system. Trigger signals recognized include:

  • Edge (main- and delayed-trigger systems)
  • Logic (main-trigger system)
  • Pulse (main-trigger system)
  • Video (with option 05: Video Trigger)

What are the configurable parameters for edge triggering?

Edge triggering is fully configurable for source, slope, coupling, mode (auto or normal), and holdoff.

What are the configurable parameters for logic triggering?

Logic triggering can be based on pattern (asynchronous) or state (synchronous). In either case, logic triggering is configurable for sources, for boolean operators to apply to those sources, for logic pattern or state on which to trigger, for mode (auto or normal), and for holdoff. Time qualification may be selected in pattern mode. Another class of logic trigger, setup/hold, triggers when data in one trigger source changes state within the setup and hold times that you specify relative to a clock in another trigger source.

What are the configurable parameters for pulse triggering?

Pulse triggering is configurable for triggering on runt or glitch pulses, or on pulse widths or periods inside or outside limits that you specify. It can also trigger on a pulse edge that has a slew rate faster or slower than the rate you specify. The timeout trigger will act when events do not occur in a defined time period. The pulse trigger is also configurable for source, polarity, mode, and holdoff.

What are the supported video formats for video triggering?

Video triggering is compatible with standard NTSC, PAL, SECAM, and HDTV formats. An additional feature called FlexFormatTM (flexible format) allows the user to define the video format on which to trigger.

How can I choose where the trigger point is located within the acquired waveform record?

You can choose where the trigger point is located within the acquired waveform record by selecting the amount of pretrigger data displayed.

How can I set the pretrigger data?

Presets of 10%, 50%, and 90% of pretrigger data can be selected in the horizontal menu, or the general purpose knob can be assigned to set pretrigger data to any value within the 0% to 100% limits.

How can I specify a mode and manner to acquire and process signals?

  • Select the mode for interpolation (linear or sin (x)/x).
  • Use sample, envelope, average and peak detect modes to acquire signals. With the TDS 500B/700A, also use high-resolution mode.
  • Set the acquisition to stop after a single acquisition (or sequence of acquisitions if acquiring in average or envelope modes) or after a limit condition has been met.
  • Select channel sources for compliance with limit tests.

What assistance does the on-board user assistance provide?

Help displays operational information about any front-panel control. Autoset automatically sets up the Digitizing Oscilloscope for a viewable display based on the input signal.

How can the cursor and measure features help me?

The cursor and measure features can help you quickly make those measurements.

What types of cursors are provided?

  • Horizontal bar cursors (H Bar) measure vertical parameters (typically volts).
  • Vertical bar cursors (V Bar) measure horizontal parameters (typically time or frequency).
  • Paired cursors measure both amplitude and time simultaneously.

What type of measurements are provided by the cursors?

These are delta measurements; that is, measurements based on the difference between two cursors.

How can the H Bar and V Bar cursors be used to make absolute measurements?

For the H Bars, either cursor can be selected to read out its voltage with respect to any channel’s ground reference level. For the V Bars, the cursors measure time with respect to the trigger point (event) of the acquisition.

What is the unit of measurement for time measurements?

For time measurements, units can be either seconds or hertz (for 1/time).

How do I measure the video line number?

With the video trigger option installed (Option 05), you can measure the video line number using the vertical cursors.

How do I measure IRE amplitude?

You can measure IRE amplitude (NTSC) using the horizontal cursors with or without the video trigger option installed.

What does the measure function do?

Measure can automatically extract parameters from the signal input to the Digitizing Oscilloscope. Any four out of the 25 parameters available can be displayed to the screen. The waveform parameters are measured continuously with the results updated on-screen as the Digitizing Oscilloscope continues to acquire waveforms.

What is the role of the DSP in the oscilloscope?

An important component of the multiprocessor architecture of this Digitizing Oscilloscope is Tektronix’s proprietary digital signal processor, the DSP. This dedicated processor supports advanced analysis of your waveforms when doing such compute-intensive tasks as interpolation, waveform math, and signal averaging. It also teams with a custom display system to deliver specialized display modes.

Where can acquired waveforms be saved?

Acquired waveforms may be saved in any of four nonvolatile REF (reference) memories or on a 3.5 inch, DOS 3.3-or-later compatible disk.

Can saved waveforms be displayed?

Any or all of the saved waveforms may be displayed for comparison with the waveforms being currently acquired.

How do I choose the source and destination of waveforms to be saved?

The source and destination of waveforms to be saved may be chosen. You can save any of the four channels to any REF memory or move a stored reference from one REF memory to another. Reference waveforms may also be written into a REF memory location via the GPIB interface.

How is the oscilloscope controllable?

The oscilloscope is fully controllable and capable of sending and receiving waveforms over the GPIB interface.

What is the hardcopy feature?

The oscilloscope can also output copies of its display using the hardcopy feature. This feature allows you to output waveforms and other on-screen information to a variety of graphic printers and plotters from the front panel, providing hard copies without requiring you to put the oscilloscope into a system-controller environment.

What hardcopy output formats are supported?

You can make hardcopies in a variety of popular output formats, such as PCX, TIFF, BMP, RLE, EPS, Interleaf, and EPS mono or color.

How do I output screen information?

You can output screen information via GPIB, RS-232C, or Centronics interfaces.

What attributes of the display can be customized?

  • Color (TDS 644B, TDS 684B, and TDS 700A): Waveforms, readouts, graticule, and variable persistence with color coding
  • Intensity: waveforms, readouts, and graticule
  • Style of waveform display(s): vectors or dots, intensified or nonintensified samples, infinite persistence, and variable persistence
  • Interpolation method: Sin(x)/x or Linear
  • Display format: xy or yt with various graticule selections including NTSC and PAL to be used with video trigger (option 05)

How can I zoom in on waveform features?

By invoking zoom, you can magnify the waveform using the vertical and horizontal controls to expand (or contract) and position it for viewing.

What are the Bandwidth Selections?

The bandwidth selections are: 20 MHz, 250 MHz, and FULL.

How many simultaneous samplers are there on the TDS 520B, 620B, 680B, 724A models?

The TDS 520B, 620B, 680B, 724A models have two simultaneous samplers.

How many simultaneous samplers are there on the TDS 540B, 644B, 684B, 744A, 784A models?

The TDS 540B, 644B, 684B, 744A, 784A models have four simultaneous samplers.

How many digitized bits are there?

There are 8 bits.

What are the available Input Coupling options?

The input coupling options are: DC, AC, or GND.

What are the available Input Impedance Selections?

The input impedance selections are: 1 MΩ or 50 Ω.

What are the Offset Voltage Ranges?

Volts/Div Setting Offset Range
1 mV/div – 100 mV/div ±1 V
101 mV/div – 1 V/div ±10 V
1.01 V/div – 10 V/div ±100 V
.

What is the Range, Position?

The Range, Position is ±5 divisions.

What is the Range, 1 MΩ Sensitivity?

The Range, 1 MΩ Sensitivity is 1 mV/div to 10 V/div.

What is the Range, 50 Ω Sensitivity?

The Range, 50 Ω Sensitivity is 1 mV/div to 1 V/div.

What is the range of real-time rates, expressed in samples/second, at which a digitizer samples signals at its inputs and stores the samples in memory to produce a record of time-sequential samples?

  • TDS 684B: 5 Samples/sec to 5 GSamples/sec on four channels simultaneously
  • TDS 680B: 5 Samples/sec to 5 GSamples/sec on two channels simultaneously
  • TDS 644B: 5 Samples/sec to 2.5 GSamples/sec on four channels simultaneously
  • TDS 620B: 5 Samples/sec to 2.5 GSamples/sec on two channels simultaneously
  • TDS 520B, 724A: 5 Samples/sec to 1 GSamples/sec when acquiring 1 channel, to 500 MSamples/sec when acquiring 2 channels
  • TDS 540B, 744A: 5 Samples/sec to 2 GSamples/sec when acquiring 1 channel to 1 G Sample/sec when acquiring 2 channels, or to 500 MSamples/sec when acquiring 3 or 4 channels (with Opt. 1G, to 1 GSamples/sec when acquiring 1 channel)
  • TDS 540B & 744A both with option 1G: 5 Samples/sec to 1 GSamples/sec when acquiring 1 channel to 1 G Sample/sec when acquiring 2 channels, or to 500 MSamples/sec when acquiring 3 or 4 channels
  • TDS 784A: 5 Samples/sec to 4 GSamples/sec when acquiring 1 channel to 2 G Sample/sec when acquiring 2 channels, or to 1 GSamples/sec when acquiring 3 or 4 channels

What is the range of waveform rates for interpolated (or equivalent-time on the TDS 700A) waveform records?

  • TDS 600B: 10 GSamples/sec to 250 GSamples/sec
  • TDS 520B, 540B, 724A, 744A: 1 GSamples/sec to 100 GSamples/sec
  • TDS 784A: 2 GSamples/sec to 250 GSamples/sec

What is the range for Seconds/Division?

  • TDS 600B: 0.2 ns/div to 10 s/div
  • TDS 500B, 724A, 744A: 0.5 ns/div to 10 s/div
  • TDS 784A: 0.2 ns/div to 10 s/div

What are the available record length selections?

500 samples, 1000 samples, 2500 samples, 5000 samples, 15000 samples

  • The TDS 520B and 724A also offer: 50000 samples and, with its option 1M, 75000, 100000, 130000 (1 or 2 channels), or 250000 (1 channel) samples.
  • The TDS 540B, 744A, and 784A also offer: 50000 samples and, with its option 1M, 75000, 100000, 130000, 250000 (1 or 2 channels), or 500000 (1 channel) samples.

What is the range for Delayed Trigger Time Delay?

The range for Delayed Trigger Time Delay is 16 ns to 250 s.

What is the Range for Events Delay?

  • TDS 600B: 2 to 10,000,000
  • TDS 500B/700A: 1 to 10,000,000

What is the Range (Time) for Pulse-Glitch, Pulse-Width, Time-Qualified Runt, Timeout, or Slew Rate Trigger, Delta Time?

The range is 1 ns to 1 s.

What are the ranges for Setup and Hold for Time Setup/Hold Violation Trigger?

Feature Min to max
Setup Time –100 ns to 100 ns
Hold Time –1 ns to 100 ns
Setup + Hold Time 2 ns
.

What are the Ranges for Trigger Level or Threshold?

  • Any Channel: ±12 divisions from center of screen
  • Auxiliary: ±8 V
  • Line: ±400 V

What Video Trigger Modes of Operation are supported?

  • NTSC (525/60) – 2 field mono or 4 field
  • PAL (625/50) – 2 field mono or SECAM, 8 field
  • HDTV – (787.5/60) (1050/60) (1125/60) (1250/60)
  • FlexFormatTM (user definable standards)

What are the specifications of the Video Display?

The Video Display is 7 inch diagonal, with a display area of 5.04 inches horizontally by 3.78 inches vertically.

  • TDS 520B, 540B, 620B, 680B: Monochrome display.
  • TDS 644B, 684B, 724A, 744A, 784A: Color display.

What is the resolution of the Video Display?

The Video Display Resolution is 640 pixels horizontally by 480 pixels vertically.

What is the Waveform Display Graticule?

The Waveform Display Graticule is a Single Graticule: 401 × 501 pixels, 8 ×10 divisions, where divisions are 1 cm by 1 cm.

What are the Waveform Display Levels/Colors?

  • TDS 520B, 540B, 620B & 680B: Sixteen levels in infinite-persistence or variable persistence display
  • TDS 644B, 684B, 724A, 744A, 784A: Sixteen colors in infinite-persistence or variable persistence display

What are the specifications of the GPIB Interface?

The GPIB interface complies with IEEE Std 488-1987.

What are the specifications of the RS-232 interface?

The RS-232 interface complies with EIA/TIA 574 (talk only), and it is optional on the TDS 520B and 540B.

What are the specifications of the Centronics interface?

The Centronics interface complies with Centronics interface standard C332-44 Feb 1977, REV A.

What are the specifications of the Video VGA output?

The VGA video output with levels complies with EIA RS 343A standard.

What is the Logic Polarity for Main- and Delayed-Trigger Outputs?

The Logic Polarity for Main- and Delayed-Trigger Outputs is Negative TRUE. High to low transition indicates the trigger occurred.

What are the Fuse Ratings?

Either of two fuses may be used: a 0.25 × 1.25 (UL 198.6, 3AG): 6 A FAST, 250 V or a 5 mm × 20 mm (IEC 127): 5 A (T), 250 V.

What is the Time, Data-Retention, Nonvolatile Memory?

Battery life ≥ 5 years.

What are the specifications of the Floppy disk?

The Floppy disk is a 3.5 inch, 720 K or 1.44 Mbyte, DOS 3.3-or-later compatible, and optional on the TDS 520B and 540B.

What is the Cooling Method?

The Cooling Method is Forced-air circulation with no air filter. Clearance is required.

What is the Construction Material?

Chassis parts constructed of aluminum alloy; front panel constructed of plastic laminate; circuit boards constructed of glass laminate. Cabinet is aluminum and is clad in Tektronix Blue vinyl material.

What is the finish type?

The finish type is Tektronix Blue vinyl-clad aluminum cabinet.

What is the Weight of the Standard Digitizing Oscilloscope?

The Standard Digitizing Oscilloscope weighs 14.1 kg (31 lbs), with front cover. 24.0 kg (53 lbs), when packaged for domestic shipment.

What is the Weight of the Rackmount Digitizing Oscilloscopes?

The Rackmount Digitizing Oscilloscopes weigh 14.1 kg (31 lbs) plus weight of rackmount parts.

What is the Weight of the Rackmount conversion kit?

The Rackmount conversion kit weighs 2.3 kg (5 lbs), parts only; 3.6 kg (8 lbs), parts plus package for domestic shipping.

What are the Overall Dimensions of the Standard Digitizing Oscilloscope?

  • Height: 193 mm (7.6 in), with the feet installed
  • Width: 445 mm (17.5 in), with the handle
  • Depth: 434 mm (17.1 in), with the front cover installed

What are the Overall Dimensions of the Rackmount Digitizing Oscilloscope?

  • Height: 178 mm (7.0 in)
  • Width: 483 mm (19.0 in)
  • Depth: 558.8 mm (22.0 in)

What conditions are required for the performance limits in the specification to be valid?

  • The oscilloscope must have been calibrated/adjusted at an ambient temperature between +20° C and +30° C.
  • The oscilloscope must be in an environment with temperature, altitude, humidity, and vibration within the operating limits described in these specifications.
  • The oscilloscope must have had a warm-up period of at least 20 minutes.
  • The oscilloscope must have had its signal-path-compensation routine last executed after at least a 20 minute warm-up period at an ambient temperature within ±5° C of the current ambient temperature.

What is the Accuracy, DC Gain?

  • TDS 600B: ±1.5% for all sensitivities from 2 mV/div to 10 V/div ± 2.0% at 1 mV/div sensitivity.
  • TDS 500B, 700A: ±1% for all sensitivities from 1 mV/div to 10 V/div with offset from 0 V to ±100V.

What is the Accuracy, DC Voltage Measurement, Averaged (using Average mode)?

Measurement Type DC Accuracy
Average of ≥ 16 waveforms **TDS 600B: ±((1.5% ×
Delta volts between any two averages of ≥ 16 waveforms acquired under the same setup and ambient conditions **TDS 600B: ±((1.5% ×
.

What is the Accuracy, Offset Volts/Div Setting?

Offset Accuracy TDS 600B TDS 500B/700A
1 mV/div – 100 mV/div **±((0.2% × Net Offset
101 mV/div – 1 V/div **±((0.25% × Net Offset
1.01 V/div – 10 V/div **±((0.25% × Net Offset
.

What is the Analog Bandwidth, DC-50Ω Coupled and Bandwidth selection is FULL, for TDS 600B?

Volts/Div 620B & 644B Bandwidth 680B & 684B Bandwidth
10 mV/div – 1 V/div DC – 500 MHz DC – 1 GHz
5 mV/div – 9.95 mV/div DC – 450 MHz DC – 750 MHz
2 mV/div – 4.98 mV/div DC – 300 MHz DC – 600 MHz
1 mV/div – 1.99 mV/div DC – 250 MHz DC – 500 MHz
.

What is the Analog Bandwidth, DC-50Ω Coupled and Bandwidth selection is FULL, for TDS 500B/700A?

Volts/Div 520B, 540B, 724A, 744A Bandwidth 784A Bandwidth
10 mV/div – 1 V/div DC – 500 MHz DC – 1 GHz
5 mV/div – 9.95 mV/div DC – 500 MHz DC – 750 MHz
2 mV/div – 4.98 mV/div DC – 500 MHz DC – 600 MHz
1 mV/div – 1.99 mV/div DC – 450 MHz DC – 500 MHz
.

What is the Crosstalk (Channel Isolation)?

Crosstalk is ≥100:1 at 100 MHz and ≥30:1 at the rated bandwidth for the channel’s Volt/Div setting, for any two channels having equal Volts/Div settings.

CLICK HERE TO DOWNLOAD TEKTRONIX TDS 520B (01) PDF MANUAL

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