that in all previously published material. Specifications and price change privileges reserved.
T ektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
WARRANTY
T ektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years
from the date of shipment. If any such product proves defective during this warranty period, T ektronix, at its option, either
will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the
defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by T ektronix, with shipping charges prepaid.
T ektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
T ektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than T ektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; or c) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time or
difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUST OMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
To Avoid Fire or
Personal Injury
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Ground the Product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Connect and Disconnect Properly . Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Observe All T erminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
Use Proper Power Source. Do not operate this product from a power source that
applies more than the voltage specified.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Electrostatic Discharge. Acquisition circuitry in the TDS 694C/794D is very
susceptible to damage from electrostatic discharge and from overdrive signals.
To prevent electrostatic damage to the TDS 694C/794D, be sure to operate the
oscilloscope only in a static-controlled environment. Be sure to discharge to
ground any electrostatic charge that may be present on cables and probes before
attaching them to the oscilloscope.
To prevent damage from electrostatic discharge, install short-circuit terminations
on unused input connectors. Always use a wrist strap with internal impedance
(provided with your instrument) when handling your oscilloscope or making
connections.
T erms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Certifications and
Compliances
T erms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
WARNING
High Voltage
Protective Ground
(Earth) Terminal
CAUTION
Refer to Manual
Double
Insulated
CSA Certified Power Cords. CSA Certification includes the products and power
cords appropriate for use in the North America power network. All other power
cords supplied are approved for the country of use.
This is the Performance Verification and Specifications for the TDS 500D,
TDS 600C, TDS 700D, and TDS 714L Oscilloscopes. It contains procedures
suitable for determining if each instrument functions, was adjusted properly, and
meets the performance characteristics as warranted. The following models are
covered:
TDS 500:TDS 520D, TDS 540D and TDS 580D
TDS 600:TDS 654C, TDS 680C, TDS 684C and TDS 694C
TDS 700:TDS 714L, TDS 724D, TDS 754D, TDS 784D, and
TDS 794D
This document also contains the technical specifications for these oscilloscopes.
The following documents are related to the use or service of this oscilloscope:
HThe TDS 500D, TDS 600B & TDS 700D User Manual describes how to use
this oscilloscope.
HThe TDS Family Programmer Disk, included with the User Manual,
describes using a computer to control the oscilloscope through the GPIB
interface.
Two types of Performance Verification procedures can be performed on this
product: Brief Procedures and Performance Tests. You may not need to perform
all of these procedures, depending on what you want to accomplish.
HTo rapidly confirm that the oscilloscope functions and was adjusted properly,
just do the brief procedures under Self Tests, which begin on page 1–5.Advantages: These procedures are quick to do, require no external
equipment or signal sources, and perform extensive functional and accuracy
testing to provide high confidence that the oscilloscope will perform
properly. They can be used as a quick check before making a series of
important measurements.
HTo further check functionality, first do the Self Tests just mentioned; then do
the brief procedures under Functional Tests that begin on page 1–7.Advantages: These procedures require minimal additional time to perform,
require no additional equipment other than a standard-accessory probe, and
more completely test the internal hardware of the oscilloscope. They can be
used to quickly determine if the oscilloscope is suitable for putting into
service, such as when it is first received.
HIf more extensive confirmation of performance is desired, do the Perform-
ance Tests, beginning on page 1–17, after doing the Functional and Self Tests
just referenced.
Advantages: These procedures add direct checking of warranted specifica-
tions. They require more time to perform and suitable test equipment is
required. (See Equipment Required beginning on page 1–18).
If you are not familiar with operating this oscilloscope, read the oscilloscope
reference or user manuals. These contain instructions that will acquaint you with
the use of the front-panel controls and the menu system.
When performing the procedures in this section, be aware that some TDS models
refer to input channels Ch 3 and Ch 4 as Aux 1 and Aux 2 respectively. Where
appropriate, both names will appear in the procedure, for example, Ch 3 (Aux 1).
The channel names for the various TDS models are shown below.
TDS 520D, 680C, and 724DCh 1, Ch 2, Aux 1, and Aux 2
Conventions
Throughout these procedures the following conventions apply:
Ch 1, Ch 2, Ch 3, and Ch 4
HEach test procedure uses the following general format:
Title of Test
Equipment Required
Prerequisites
Procedure
HEach procedure consists of as many steps, substeps, and subparts as required
to do the test. Steps, substeps, and subparts are sequenced as follows:
1. First Step
a. First Substep
HFirst Subpart
HSecond Subpart
b. Second Substep
2. Second Step
HIn steps and substeps, the lead-in statement in italics instructs you what to
do, while the instructions that follow tell you how to do it, as in the example
step below, “Initialize the oscilloscope” by doing “Press save/recall SETUP.
Now, press the main-menu button...”.
Initialize the oscilloscope: Press save/recall SETUP. Now, press the
main-menu button Recall Factory Setup; then the side-menu button OKConfirm Factory Init.
HWhere instructed to use a front-panel button or knob, or select from a main
or side menu, or verify a readout or status message, the name of the button or
knob appears in boldface type: “press SHIFT; then UTILITY, press the
main-menu button System until Cal is highlighted in the pop-up menu.
Verify that the status message is Pass in the main menu under the VoltageReference label.”
STOP. The STOP notation at the left is accompanied by information you must read
to do the procedure properly.
HRefer to Figure 1–1: “Main menu” refers to the menu that labels the seven
menu buttons under the display; “side menu” refers to the menu that labels
the five buttons to the right of the display. “Pop-up menu” refers to a menu
that pops up when a main-menu button is pressed.
Brief status
information
Graticule and waveforms
Waveform reference
symbols show ground levels
and waveform sources
Vertical scale, horizontal scale,
and trigger level readouts
Pop-up menu
Position of waveform
record relative to
the screen and display
General purpose
knob readout
Side menu area.
Readouts for
measurements
move here when
CLEAR MENU
is pressed.
Main menu display area. Readouts in lower graticule
The Self Tests use internal routines to confirm basic functionality and proper
adjustment. No test equipment is required to do these test procedures.
The Functional Tests utilize the probe-compensation output at the front panel as
a test-signal source for further verifying that the oscilloscope functions properly.
A probe is required to do these test procedures.
This procedure uses internal routines to verify that the oscilloscope functions and
was adjusted properly. No test equipment or hookups are required.
Verify Internal Adjustment,
Self Compensation, and
Diagnostics
Equipment
required
PrerequisitesPower on the oscilloscope and allow a 20 minute warm-up before doing
1. Verify that internal diagnostics pass: Do the following substeps to verify
passing of internal diagnostics.
a. Display the System diagnostics menu:
HPress SHIFT; then press UTILITY.
HRepeatedly press the main-menu button System until Diag/Err is
highlighted in the pop-up menu.
b. Run the System Diagnostics:
HFirst disconnect any input signals from all four channels.
HPress the main-menu button Execute; then press the side-menu
button OK Confirm Run Test.
c. Wait: The internal diagnostics do an exhaustive verification of proper
oscilloscope function. This verification will take up to three and a half
minutes on some models. When the verification is finished, the resulting
status will appear on the screen.
None
this procedure.
d. Verify that no failures are found and reported on-screen. If any failures
occur do step 1a, then press the main menu button Error Log for details.
e. Confirm the three adjustment sections have passed status:
HPress SHIFT; then press UTILITY.
HHighlight Cal in the pop-up menu by repeatedly pressing the
main-menu button System. See Figure 1–2.
HVerify that the word Pass appears in the main menu under the
following menu labels: Voltage Reference, Frequency Response,
and Pulse Trigger. See Figure 1–2.
f.Run the signal-path compensation: Press the main-menu button Signal
Path; then press the side-menu button OK Compensate Signal Paths.
g. Wait: Signal-path compensation may take five to fifteen minutes to run.
While it progresses, a “clock” icon (shown at left) is displayed onscreen. When compensation completes, the status message will be
updated to Pass or Fail in the main menu. See step h.
h. Confirm signal-path compensation returns passed status: Verify that the
word Pass appears under Signal Path in the main menu. See Figure 1–2.
1–6
Highlight Cal
1
3
Verify Pass
2
Verify Pass
Figure 1–2: Verifying adjustments and signal-path compensation
2. Return to regular service: Press CLEAR MENU to exit the system menus.
The purpose of these procedures is to confirm that the oscilloscope functions
properly. The only equipment required is one of the standard-accessory probes
and, to check the file system, a 3.5 inch, 720 K or 1.44 Mbyte floppy disk.
CAUTION. The P6243, P6245, P6249 and probes that can be used with this
oscilloscope provide an extremely low loading capacitance (<1 pF) to ensure the
best possible signal reproduction. These probes should not be used to measure
signals exceeding ±8 volts, or errors in signal measurement will be observed.
Above 40 volts, damage to the probe may result. To make measurements beyond
±10 volts, use either the P6139A probe (good to 500 volts peak), the P6339A
probe (for the TDS 694C & TDS 794D), or refer to the catalog for a recommended probe.
STOP. These procedures verify functions; that is, they verify that the oscilloscope
features operate. They do not verify that they operate within limits.
Therefore, when the instructions in the functional tests that follow call for you to
verify that a signal appears on-screen “that is about five divisions in amplitude”
or “has a period of about six horizontal divisions,” etc., do NOT interpret the
quantities given as limits. Operation within limits is checked in PerformanceTests, which begin on page 1–17.
STOP. DO NOT make changes to the front-panel settings that are not called out
in the procedures. Each verification procedure will require you to set the
oscilloscope to certain default settings before verifying functions. If you make
changes to these settings, other than those called out in the procedure, you may
obtain invalid results. In this case, just redo the procedure from step 1.
When you are instructed to press a menu button, the button may already be
selected (its label will be highlighted). If this is the case, it is not necessary to
press the button.
P6139A probe is not appropriate for the TDS694C/794D oscilloscopes.
One probe such as the P6243, P6245, P6249, P6139A1, or P6339A
1. Install the test hookup and preset the oscilloscope controls:
a. Hook up the signal source: Install the probe on CH 1. Connect the probe
tip to PROBE COMPENSATION SIGNAL on the front panel;
connect the probe ground (typically black) to PROBE COMPENSA-TION GND. If using a P6243, P6245 or P6249 probe, you may want to
attach a Y-lead connector and two SMD KlipChips as shown in
Figure 1–3.
1–8
SignalGnd
Figure 1–3: Universal test hookup for functional tests – TDS 600C shown
b. Initialize the oscilloscope:
HPress save/recall SETUP.
HPress the main-menu button Recall Factory Setup.
HPress the side-menu button OK Confirm Factory Init.
2. Verify that all channels operate: Do the following substeps — test CH 1
first, skipping substepa and b since CH 1 is already set up for verification
and as the trigger source from step 1.a. Select an unverified channel:
HPress WAVEFORM OFF to remove the channel just verified from
display.
HPress the front-panel button that corresponds to the channel you are
to verify.
HMove the probe to the channel you selected.
b. Match the trigger source to the channel selected:
HPress TRIGGER MENU.
HPress the main-menu button Source.
HPress the side-menu button that corresponds to the channel selected,
Ch2, Ch3, or Ch4. (Some TDS models use Ax1 and Ax2 instead of
Ch3 and Ch4).
c. Set up the selected channel:
HSet the vertical SCALE to 200 mV.
HSet the horizontal SCALE to 200 ms. Press CLEAR MENU to
remove any menu that may be on the screen.
HPress SET LEVEL TO 50%.
d. Verify that the channel is operational: Confirm that the following
statements are true.
HThe vertical scale readout for the channel under test shows a setting
of 200 mV, and a square-wave probe-compensation signal about
2.5 divisions in amplitude is on-screen. See Figure 1–1 on page 1–3
to locate the readout.
HThe vertical POSITION knob moves the signal up and down the
screen when rotated.
HTurning the vertical SCALE knob counterclockwise decreases the
amplitude of the waveform on-screen, turning the knob clockwise
increases the amplitude, and returning the knob to 200 mV returns
the amplitude to about 2.5 divisions.
e. Verify that the channel acquires in all acquisition modes: Press SHIFT;
then press ACQUIRE MENU. Use the side menu to select, in turn, each
of the three hardware acquire modes and confirm that the following
statements are true. Refer to the icons at the left of each statement as you
confirm those statements.
HSample mode displays an actively acquiring waveform on-screen.
(Note that there is noise present on the peaks of the square wave).
HPeak Detect mode displays an actively acquiring waveform
on-screen with the noise present in Sample mode “peak detected.”
HHi Res mode (TDS 500D and 700D/L only) displays an actively
acquiring waveform on-screen with the noise that was present in
Sample mode reduced.
HEnvelope mode displays an actively acquiring waveform on-screen
with the noise displayed.
HAverage mode displays an actively acquiring waveform on-screen
with the noise reduced.
Verify the Time Base
f.Test all channels: Repeat substeps a through e until all four input
channels are verified.
3. Remove the test hookup: Disconnect the probe from the channel input and
the probe-compensation terminals.
Equipment
required
PrerequisitesNone
1
P6139A probe is not appropriate for the TDS694C/794D oscilloscopes.
One probe such as the P6243, P6245, P6249, P6139A1, or P6339A
1. Install the test hookup and preset the oscilloscope controls:
a. Hook up the signal source: Install the probe on CH 1. Connect the probe
tip to PROBE COMPENSATION SIGNAL on the front panel;
connect the probe ground to PROBE COMPENSATION GND. See
Figure 1–3 on page 1–8.
b. Initialize the oscilloscope:
HPress save/recall SETUP.
HPress the main-menu button Recall Factory Setup; then press the
HSet the vertical SCALE to 200 mV.
HSet the horizontal SCALE to 200 ms.
HPress SET LEVEL TO 50%.
HPress CLEAR MENU to remove the menus from the screen.
2. Verify that the time base operates: Confirm the following statements.
a. One period of the square-wave probe-compensation signal is about five
horizontal divisions on-screen for the 200 ms horizontal scale setting (set
in step 1c).
b. Rotating the horizontal SCALE knob clockwise expands the waveform
on-screen (more horizontal divisions per waveform period), counterclockwise rotation contracts it, and returning the horizontal scale to
200 ms returns the period to about five divisions.
c. The horizontal POSITION knob positions the signal left and right
on-screen when rotated.
Verify the Main and
Delayed Trigger Systems
3. Remove the test hookup: Disconnect the probe from the channel input and
the probe-compensation terminals.
Equipment
required
PrerequisitesNone
1
P6139A probe is not appropriate for the TDS694C/794D oscilloscopes.
One probe such as the P6243, P6245, P6249, P6139A1, or P6339A
1. Install the test hookup and preset the oscilloscope controls:
a. Hook up the signal source: Install the probe on CH 1. Connect the probe
tip to PROBE COMPENSATION SIGNAL on the front panel;
connect the probe ground to PROBE COMPENSATION GND. See
Figure 1–3 on page 1–8.
b. Initialize the oscilloscope:
HPress save/recall SETUP.
HPress the main-menu button Recall Factory Setup.
HPress the side-menu button OK Confirm Factory Init.
c. Modify default settings:
HSet the vertical SCALE to 200 mV.
HSet the horizontal SCALE for the M (main) time base to 200 ms.
HPress SET LEVEL TO 50%.
HPress TRIGGER MENU.
HPress the main-menu button Mode & Holdoff.
HPress the side-menu button Normal.
HPress CLEAR MENU to remove the menus from the screen.
2. Verify that the main trigger system operates: Confirm that the following
statements are true.
HThe trigger level readout for the main trigger system changes with the
trigger-LEVEL knob.
HThe 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).
HPressing SET LEVEL TO 50% triggers the signal that you just left
untriggered. (Leave the signal triggered).
3. Verify that the delayed trigger system operates:
a. Select the delayed time base:
HPress HORIZONTAL MENU.
HPress the main-menu button Time Base.
HPress the side-menu button Delayed Triggerable; then press the
side-menu button Delayed Only.
HSet the horizontal SCALE for the D (delayed) time base to 200 ms.
b. Select the delayed trigger level menu:
HPress SHIFT; then press DELAYED TRIG.
HPress the main-menu button Level; then press the side-menu button
Level.
c. Confirm that the following statements are true:
HThe trigger-level readout for the delayed trigger system changes as
you turn the general purpose knob.
HAs you rotate the general purpose knob, the square-wave probe-com-
pensation signal can become triggered and untriggered. (Leave the
signal untriggered, which is indicated by the display not updating).
HSet the vertical SCALE to 200 mV.
HSet the horizontal SCALE for the M (main) time base to 200 ms.
Notice the waveform on the display now shows two cycles instead of
five.
HPress SET LEVEL TO 50%.
HPress CLEAR MENU to remove the menus from the screen.
e. Save the settings:
HPress SETUP.
HPress the main-menu button Save Current Setup; then press the
side-menu button To File.
HTurn the general purpose knob to select the file to save. Choose
TEK?????.SET (or fd0:, the floppy disk drive, hd0:, the optional
hard disk drive, or Zip:, if an external Zip drive is connected). With
this choice, you will save a file starting with TEK, then containing
5-numbers, and a .SET 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 TEK00000.SET to your
file. If you ran the procedure again, the oscilloscope would
increment the name and call the file TEK00001.SET.
NOTE. If testing an external Zip drive, it must first be connected to the oscilloscope, then be powered on simultaneously with the oscilloscope, or immediately
after the oscilloscope is powered-on. This ensures proper communications are
set up between the oscilloscope and the Zip drive.
f.To test the optional hard disk drive or external Zip drive, choose either
the hard disk drive (hd0:), or the external Zip drive (Zip:). Then use the
general purpose knob to select the file to save. Save the file as in step e.
HPress the side-menu button Save To Selected File.
2. Verify the file system works:
HPress the main-menu button Recall Factory Setup and the side-menu
button OK Confirm Factory Init to restore the 500 ms time base and
the five cycle waveform.
HPress the main-menu button Recall Saved Setup; then press the
HTurn the general purpose knob to select the file to recall. For example, if
you followed the instructions previously and saved the file to either the
floppy disk drive (fd0:), or the optional hard disk drive (hd0:), you had
the oscilloscope assign the name TEK00000.SET to your file.
HPress the side-menu button Recall From Selected File.
HVerify that the oscilloscope retrieved the saved setup from the disk. Do
this by noticing the horizontal SCALE for the M (main) time base is
again 200 ms and the waveform shows only two cycles just as it was
when you saved the setup.
3. Remove the test hookup:
HDisconnect the probe from the channel input and the probe-compensa-
tion terminals.
HRemove the floppy disk from the floppy disk drive.