xx
TDS2000C and TDS1000C-EDU Series
ZZZ
Digital Storage Oscilloscopes
Service Manual
Revision A
This document applies to TDS2000C and TDS1000C-EDU
models with serial numbers of C030000 and above.
This document a pplies to firmw are version 1.00 and above.
Warning
The servicing instructions are for use by qualified personnel
only. To avoid personal injury, do not perform any servicing
unless you are qualified to do so. Refer to all safety summaries
prior to performing service.
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Table of Contents
General safety summary ........................ .................................. ................................ vi
Service safety summary.......................................................................................... viii
Preface .............................................................................................................. ix
Manual Conventions................................ ................................ .......................... ix
Related Documentation ...................................................................................... ix
Specifications ........ .................................. ................................ ............................. 1
Signal Acquisition System Characteristics.. . .. .. . . . . . . . . . . . . . . . . . . . . . . .... .. .. .. . . . . . . . . . . . . .... .. .. .. . . . . . 1
Time Base System .. ................................ .................................. ......................... 7
Triggering System ...... .................................. ................................ ..................... 9
Display Specifications............................ .................................. .......................... 13
Interfaces and Output Ports Specifications................................................................. 14
Data Handling Characteristics............................... ................................ ................ 14
Power Distribution System .................................................................................. 14
Mechanical Characteristics .................................................................................. 15
Environmental Performance................................................................................. 15
Data Logging System Characteristics (Not Available on TDS1000C-EDU Models) ................. 15
Limit Testing System Characteristics (Not Available on TDS1000C-EDU Models) ... . . . .. . . .. . . . . . 16
Where to Find Operating Information........... .................................. .............................. 19
Theory of Operation................... .................................. ................................ .......... 21
System Level Block Diagrams ........................ .................................. .................... 22
Main Board .................................................................................................... 24
Acquisition System .. . .. .. .. . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . 2 4
Processing and Display System .......... ................................ .............................. 25
Input Signal Interface................................ ................................ .................... 25
Probe Compensation......... ................................ .................................. .......... 25
External Trigger.......................................................................................... 25
Main Board Power....................................................................................... 25
Power Supply.................................................................................................. 25
Display Module ... .................................. .................................. ........................ 26
Front Panel .................. .................................. ................................ ................ 26
Two-Channel Oscilloscopes . .. .. . . .... .. .. .. . . . . . . .... .. .. .. . . . . .... .. .. .. . . . . .... .. .. .. . . . . .... .. .. .. . 26
Four-Channel Oscilloscopes .. .. .. . .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. . .. 26
Performance Verification ....... ................................ .................................. ................ 27
Required Equipment............................ ................................ .............................. 27
Test Record.... .................................. ................................ .............................. 28
Performance Verification Procedures....... .................................. .............................. 29
Self Test................................................................................................... 29
Self Calibration........... .................................. .................................. ............ 29
Check DC Gain Accuracy............................................................................... 29
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual i
Table of Contents
Check Bandwidt
Check Sample Rate Accuracy and Delay Time Accuracy......................... .................. 32
Check Edge Trigger Sensitivity ........ ................................ ................................ 33
Check External Edge Trigger Sensitivity.......................... .................................. .. 35
Check Vertical Position Accuracy... .. .. .. .. .. . . .. . . . . .. . . . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . . . .. . 36
Adjustment Procedures ........................................................................................... 41
Required Equipment.......................................................................................... 41
Adjustment Procedure........................................................................................ 41
Enable the Service Menu........................ .................................. ...................... 42
Adjustment Procedure ................... ................................ ................................ 44
Maintenance........................................................................................................ 49
Preventing ESD ............................................................................................... 49
Inspection and Cleaning................ ................................ .................................. .... 49
General Care.............................................................................................. 50
Interior Cleaning ......................................................................................... 50
Exterior Cleaning .......... .................................. ................................ ............ 50
Exterior Inspection......................................... .................................. ............ 51
Interior Inspection ..... ................................ .................................. ................ 51
Cleaning Procedure, Interior........................................ ................................ .... 52
Removal and Installation Procedures................. ................................ ...................... 54
Summary of Procedures............... .................................. ................................ 54
Required Tools ........................... .................................. .............................. 56
Rear Feet............ .................................. ................................ .................... 56
Flip Feet................................................................................................... 57
Front-Panel Knobs ....................................................................................... 57
Power Button ......................... ................................ .................................. .. 57
Rear Case ................................................................................................. 58
Front Feet ............................... .................................. ................................ 59
Power Supply Module............. ................................ .................................. .... 60
Internal Assembly.. .................................. .................................. .................. 61
Front-Panel Cable...................................... ................................ .................. 62
Main Board Module (Serial number C030000 or later) ............................................. 63
Display Module .......................................................................................... 66
Front-Panel Module...................................................................................... 67
Keypad .............. .................................. ................................ .................... 68
Troubleshooting......................... .................................. ................................ .... 69
Adjustment After Repair ................................................................................ 69
Required Tools and Equipment................. ................................ ........................ 69
Troubleshooting Tree.................................................................................... 69
Probe Comp Output...................................................................................... 74
Troubleshooting the Power Supply .................................................................... 75
h ........................................................................................ 31
ii TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Table of Contents
Troubleshooti
Troubleshooting the Front Panel ....... ................................ ................................ 77
Troubleshooting the Main Board. ................................ .................................. .... 80
Repackaging Instructions ................ ................................ .................................. .. 83
Diagrams ........................................................................................................... 85
Replaceable Parts .................................................................................................. 87
Parts Order
Using the Replaceable Parts List............................................................................ 88
Parts Lists and Exploded Views............................................................................. 89
Appendix A: Example of a Vertical Position Accuracy Test Spreadsheet.. . .. . . . . . . . . . . . . . . . . . . .... .. .. .. . . 99
Sample Filled-In Vertical Position Accuracy Test Spreadsheet . .... .. .. .. . . . . .... .. .. .. . . . . .... .. .. .. . . . 99
ng the Display.................... .................................. ...................... 76
ing Information .................................................................................. 87
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual iii
Table of Contents
List of Figure
Figure 1: Module-level block diagram (2-channel)............................................................ 22
Figure 2: Mo
Figure 3: Example of a line graph for the Vertical Position Accuracy test . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . 39
Figure 4: Adjustment setups ..................................................................................... 43
Figure 5: Locator for trim and cabinet removal (4-channel model shown) ................................. 55
Figure 6: Locator for internal modules (4-channel model shown)............................... ............ 55
Figure 7: Instrument cable locations (Main Board SN C030000 or later) .................................. 64
Figure 8:
Figure 9: Oscilloscope troubleshooting tree (page 2 of 4) . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . 71
Figure 10: Oscilloscope troubleshooting tree (page 3 of 4)... . . . . . . . .... .. .. .. . . .... .. .. .. .... .. .. .. . . .... .. . 72
Figure 11: TDS2000C and TDS1000C-EDU series block diagram ......................................... 86
Figure 12: Exploded diagram, 2-channel models.............................................................. 89
Figure 13: Exploded diagram, 4-channel models.............................................................. 92
e 14: Power supply module, cables, and wires........................................................... 94
Figur
Figure 15: Exploded diagram, back case and trim............................................................. 96
dule-level block diagram (4-channel)............................................................ 23
Oscilloscope troubleshooting tree (page 1 of 4) .. .. .. . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . .. 70
s
iv TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
List of Tables
Table 1: Signal acquisition system characteristics. .. .. .. .. .. . . . . .... .. .. .. . . . . .... .. .. .. . . . . . . .... .. .. .. . . . . ... 1
Table 2: Tim
Table 3: Triggering system ....................... ................................ ................................. 9
Table 4: Display spec ifications................................................................................... 13
Table 5: Interfaces and output ports specifications .. .................................. ........................ 14
Table 6: Data handling characteristics .......................................................................... 14
Table 7: Power distribution system.............................................................................. 14
Table 8: M
Table 9: Environmental performance ........................................................................... 15
Table 10: Data logging system characteristics (not available on TDS1000C-EDU models).............. 16
Table 11: Limit testing system characteristics (not available on TDS1000C-EDU models).. .. .. .. .. .. .. 16
Table 12: Performance verification.............................................................................. 27
Table 13: Test record.......... .................................. .................................. ................ 28
14: Required equipment ................................................................................... 41
Table
Table 15: Adjustment steps..................................... .................................. ................ 45
Table 16: External inspection checklist......................................................................... 51
Table 17: Internal inspection checklist.......................................................................... 52
Table 18: Tools and equipment .................................................................................. 69
Table 19: Probe Comp output.................. ................................ .................................. 74
ble 20: Troubleshooting the power supply................................................................... 75
Ta
Table 21: Troubleshooting the front panel – service........................... ................................ 77
Table 22: Troubleshooting the front panel – Service Diag.................................................... 77
Table 23: Troubleshooting the front panel – Mfg. test ...... .................................. ................ 77
Table 24: Expected signals at J202............ .................................. ................................ 78
Table 25: Troubleshooting the Main board ............... .................................. .................... 80
Table 26: List of error codes ..................................................................................... 81
Table 27: Replaceable parts list.................................................................................. 88
Table 28: Replaceable parts list, 2-channel models............................................................ 90
Table 29: Replaceable parts list, 4-channel models............................................................ 93
Table 30: Replaceable parts list; power supply module, instrument cables, and wires .................... 94
Table 31: Replaceable parts list, back case and trim .......................................................... 97
Table 32: Vertical position accuracy test spreadsheet . .. .. .... .. .. .. .... .. .. . . . . . . .... .. .. .. .... .. .. .. .... .. .. 99
e base system ................. .................................. .................................. ... 7
echanical characteristics ........... .................................. ................................ 15
Table of Contents
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual v
General safety summary
General safet
To avoid fir
e or personal
injury
ysummary
Review the fo
this product or any products connected to it.
To avoid pot
Only qualified personnel should perform service procedures.
Use proper
certified for the country of use.
Connect a
instrument before connecting the probe to the circuit under test. Connect the
probe reference lead to the circuit under test before connecting the probe input.
Disconnect the probe input and the probe reference lead from the circuit under test
before disconnecting the probe from the measurement instrument.
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
nals of the product, ensure that the product is properly grounded.
termi
Observe all terminal ratings. To av o id fire or shock hazard, observe all ratings
arkings on the product. Consult the product manual for further ratings
and m
information before making connections to the product.
llowing safety precautions to avoid injury a nd prevent damage to
ential hazards, use this product only as s peci fied.
power cord. Use only the power cord specified for this product and
nd disconnect properly. Connect the probe output to the measurement
nect the probe reference lead to earth ground only.
Con
Do not apply a potential to any terminal, including the common terminal, that
eeds the maximum ratingofthatterminal.
exc
Power disconnect. The power switch disconnects the product from the power
urce. See instructions for the location. Do not block the pow er switch; it must
so
remain accessible to the user at all times.
o not operate without covers. Do not operate this product with covers or panels
D
removed.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Avoid exposed circuitry. Do not touch exposed connections and components when
power is present.
vi TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
General safety summary
Terms in this manual
Symbols and terms on the
product
Do not operate i
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Provide prop
on installing the product so it has proper ventilation.
These terms may appear in this manual:
WAR N ING.
in injury or loss of life.
CAUTION
damage to this product or other property.
These t
erms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read
the m a
n wet/damp conditions.
er ventilation. Refer to the manual's installation instructions for details
Warning statements identify conditions or practices that could result
. Caution statements identify conditions or practices that could result in
rking.
WARNING indicates an injury hazard not immediately accessible as you
the marking.
read
CAUTION indicates a hazard to property including the product.
The following symbol(s) m ay appear on the product:
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual vii
Service s afety summary
Service safet
ysummary
Only qualifie
safety summary and the General safety summary before performing any service
procedures.
Do not service alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering fi rst aid and resuscitation is
present.
Disconnect power. To avoid electric shock, switch off the instrument power, then
disconnect the power cord from the mains power.
Use care when servicing with power on. Dangerous voltages or currents may exist
in this p
test leads before removing protective panels, soldering, or replacing components.
To avoi
d personnel should perform service procedures. Read this Service
roduct. Disconnect power, remove battery (if applicable), and disconnect
d electric shock, do not touch exposed connections.
viii TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Preface
Manual Conventions
This service manual provides information to verify performance of,
calibrate, troubleshoot, disassemble, and replace parts on the TDS2000C and
TDS1000C-ED
Unless noted otherwise, the term "oscilloscope" refers to all models in the
TDS2000C an
U Series Digital Storage Oscilloscopes.
d TDS1000C-EDU series.
Modules
Replaceable Parts
Safety
Related Documentation
This manu
before attempting service.
Throughout this manual, any replaceable component, assembly, o r part is referred
to by the
A module is composed of electrical and mechanical assemblies, circuit cards,
interc
This manual refers to any field-replaceable assembly or mechanical part
specifically by its name or generically as a replaceable part. In general, a
aceable part is any circuit board or assembly, such as th e hard disk drive, or a
repl
mechanical part, such as the I/O port connectors, that is listed in the replaceable
parts list.
Sym
at the beginning of this manual.
al uses certain conventions that you should become familiar with
term module.
onnecting cables, and user-accessible controls.
bolsandtermsrelatedtosafetyappearintheServiceSafetySummaryfound
To read about Use these documents
nstallation and
I
Operation
Programmer
Commands
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual ix
he oscilloscope user manual, available on the Tektronix Web
T
site.Go to www.tektronix.com/manuals and search for the user
manual for your product (available in 11 languages).
The oscilloscope programmer manual, available on the Tektronix
Web site. Go to www.tektronix.com/manuals and search for the
programmer manual for your product.
Preface
x TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Specifications
These specifications apply to all TDS2000C and TDS1000C-EDU series
oscilloscopes. To verify that an oscilloscope meets specifications, it must first
meet the foll
owing conditions:
The oscilloscope must have been operating continuously for twenty minutes
within the s
pecified operating temperature.
You must perform the Do Self Cal operation, accessible through the Utility
menu, if th
e operating temperature has changed by more than 5 ° C (9 °F)
since the last time the Do Self Cal operation was performed.
Specifica
tions are provided in the following tables. All specifications are
guaranteed unless noted "typical." Specifications that are m arked with the symbol
are checked in the Performance Verification section. (See page 27, Performance
Ver ification.)
Signal Acquisition System Characteristics
NOTE.
attenuation factors unless otherwise specified. This is due to the way the displayed
sensitivity works. This does not affect actual methods of attachment. It only alters
the relationship between displayed scale factors and the specifications.
Table 1: Signal acquisition system characteristics
Characteristic
Number of Input
annels
Ch
Input Coupling DC, AC, or GND
Input Impedance, DC
Coupled
Description
TDS1001C-EDU
S1002C-EDU
TD
TDS1012C-EDU
TDS2001C
S2002C
TD
TDS2012C
TDS2022C
TDS2004C
DS2014C
T
TDS2024C
1MΩ ±2%inparallelwith20pF±3pF
All amplitude-related or modified specifications require 1X probe
Two nominally identical channels, sampled
simultaneously.
Four nominally identical channels, sampled
simultaneously.
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 1
Specifications
Table 1: Signal acquisition system characteristics (cont.)
Characteristic
Maximum Input Voltage
Description
At the front panel connector, 300 V
, Installation Category II; derate at 20 dB/decade above 100 kHz to
RMS
13 V peak AC at 3 MHz and above.
Based on sinusoidal or DC input signal. The maximum viewable signal while DC coupled is ±50 V offset
±5 V/div at 4 divisions, or 70 V. AC coupling allows measuring signals on a DC level up to 300 V. For
nonsinusoidal waveforms, peak value must be less than 450 V. Excursions above 300 V should be less
than 100 ms in duration, and the duty factor is limited to < 44%. The RMS signal level must be limited to
300 V. If these values are exceeded, damage to the instrument may result.
8 bits except at 2 mV/divNumber of Digitized Bits
Displayed vertically with 25 digitization levels per division, 10 divisions dynamic range.
2 mV/div setting is generated by digital m ultiplication and the resolution is reduced. Given 100 levels
available, the resolution is >6.5 bits.
Sensitivity Range 2 mV/div to 5 V/div in 1-2-5 sequence with the probe attenuation set to 1X.
Display Gain Variable
The Display Gain Variable function allows the user to vary the vertical display gain continuously over the
full range.
Resolution is that of the coarse gain from which these data are constructed. Fine gain values (for
instance 120 mV/div) are acquired at the next higher coarse gain setting (in this case 200 mV/div).
The Display Gain Variable is achieved by digital mult iplication of the data to obtain the settings between
the 1-2-5 gain settings.
Hard copy outputs to printer will be exactly the same as seen on screen even when the Display Gain
Variable is used.
However, WAVEFORM DATA obtained through the I/O interface is limited to the 1-2-5 gain settings.
Probe Scale Factors
1X, 10X, 20X, 50X, 100X, 200X, 500X, 1000X voltage attenuation.
5, 1, 500 m, 200 m, 20 m, 10 m, 1 m V/A current scale factor.
This adjusts the d isplay scale factor of the instrument to accommodate various probe types.
Accuracy of the probe used must be added to the accuracy specifications of instrument.
No automatic probe interface is provided, so you must verify that the settings match the probe
characteristics. The probe check function allows setting of the proper attenuation for voltage probes.
Acquisition Modes
Sample, Peak Detect, Average
Envelope mode not provided
Retained Front Panel
Settings
Front panel settings are retained when the instrument power is turned off and on with the power switch.
The settings are retained when the line power is turned off and on.
The instrument periodically saves front panel settings after settings are changed. There is a delay of
three seconds after the last change and before the storage of the settings in memory.
2 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Table 1: S ignal acquisition system characteristics (cont.)
Specifications
Characteristic
Math Modes
Voltage Measurement
Functions
√ DC Gain Accuracy,
Sample or Average
Acquisition
DC Voltage
Measurement Accuracy,
Average Acquisition
Mode
Delta Volts Measurement
Accuracy, Average
Acquisition Mode
Analog Bandwidth
Description
All Units:
Channel 1 - Channel 2
Channel 2 - Channel 1
Channel 1 + Channel 2
Channel 1 * Channel 2 FFT
4 channel units (TDS20X4C):
Channel 3 - Channel 4
Channel 4 - Channel 3
Channel 3 + Channel 4
Channel 3 * Channel 4
Mean, Cyc RMS, Peak-to-Peak, Max, Min, RMS, CursorRMS
This is the difference between the measured DC gai n and the nominal DC gain, divided by the nominal
DC gain and expressed as a percent.
±3%, 5 V/div through 10 mV/div
±4%, 5 mV/div and 2 mV/div
Vertical position = 0: ±(3% of |reading| + 0.1 div + 1 mV)
Vertical position ≠ 0 and vertical scale = 2 mV/div to 200 mV/div: ±[3% of |reading + vertical position|
+ 1% of |vertical position| + 0. 2 div + 7 mV]
Vertical position ≠ 0 and vertical scale > 200 mV/div: ±[3% of |reading + vertical position| + 1% of
|vertical position| + 0.2 div + 175 mV]
Delta volts between any two averages of 16 waveforms acquired under the same setup and ambient
conditions.
(3% of |reading| + 0.05 div)
Defined in Section 4.6 of IEEE std 1057. The difference between the upper and lower frequencies, at
which the amplitude response, as seen in the data record, is 0.707 (-3 dB) of the response seen in the
data record at the specified reference frequency. Specifies only the -3 dB point. It does not include
the in-band response.
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 3
Specifications
Table 1: Signal acquisition system characteristics (cont.)
Characteristic
√ Analog Bandwidth,
DC Coupled, Sample or
Average
Analog Bandwidth, DC
Coupled, Peak Detect,
typical
Analog Bandwidth
Selections
Description
This is analog bandwidth when the instrument is DC coupled in sample or average mode. V/div values
are accurate for probe attenuation settings of 1X. No probe should be installed for these measurements.
System bandwidth is type tested to be equivalent to this specification with the provided probe in 10X
mode. Use Section 4.6.1 of IEEE 1057, with the reference frequency of 1 kHz at an amplitude of
5 divisions, driven from a 50 Ω source with external termination at the input BNC (25 Ω effective source).
TDS2022C, TDS2024C:
to ≥ 200 MHz for 5 mV/div through 5 V/div settings with bandwidth limit at full with temperature between
0°C and 35 °C. DC to > 160 MHz for 5 mV/div through 5 V/div settings with bandwidth limit at full for
temperatures between 0 °C and 50 °C. < 5 mV/div settings are limited to 20 MHz bandwidth.
TDS2012C, TDS2014C:
DC to ≥ 100 MHz for 5 mV/div through 5 V/div settings with bandwidth limit at full. < 5 mV/div settings
are limited to 20 MHz bandwidth.
TDS2002C, TDS2004C:
DC to ≥ 70 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. < 5 MV/div settings
are limited to 20 MHz bandwidth.
TDS2001C:
DC to ≥ 50 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. < 5 mV/div settings
are limited to 20 MHz bandwidth.
TDS1012C-EDU:
DC to ≥ 100 MHz for 5 mV/div through 5 V/div settings with bandwidth limit at full. < 5 mV/div settings
are limited to 20 MHz bandwidth.
TDS1002C-EDU:
DC to ≥ 60 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. < 5 MV/div settings
are limited to 20 MHz bandwidth.
TDS1001C-EDU:
DC to ≥ 40 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. < 5 mV/div settings
are limited to 20 MHz bandwidth.
This is the analog bandwidth when the instrument is DC coupled. V/div values are accurate for probe
attenuation settings of 1X. No probe should be installed for these measurements.
TDS1012C-EDU, TDS2012C, TDS2014C, TDS2022C, TDS2024C:
DC to ≥ 75 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. Settings less
than 5 mV /div are limited to 20 MHz bandwidth.
TDS1002C-EDU, TDS2002C, TDS2004C:
DC to ≥ 50 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. Settings less
than 5 mV /div are limited to 20 MHz bandwidth.
TDS1001C-EDU, TDS2001C:
DC to ≥ 30 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. Settings less
than 5 mV /div are limited to 20 MHz bandwidth.
20 MHz bandwidth limit ON/OFF
4 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Table 1: S ignal acquisition system characteristics (cont.)
Specifications
Characteristic
Upper-Frequency Limit,
20 MHz Bandwidth
Limited, typical
Lower- Frequency Limit,
AC Coupled
Rise Time, typical
Peak Detect Mode Pulse
Response
Vertical Position Ranges
Description
This is the upper frequency for Analog Bandwidth when the instrument has 20 MHz bandwidth limiting
turned on.
20 MHz
Bandwidth of all trigger paths are similarly limited, except the External Trigger, which is not affected
by BW Limit function. Each channel is separately limited, allowing different bandwidths on different
channels of the same instrument.
This is the lower frequency for Analog Bandwidth when the instrument is AC-coupled
≤ 10 Hz.
<1 Hz when 10X, passive probes are used.
Model
TDS2022C, TDS2024C
TDS2012C, TDS2014C
TDS2002C, TDS2004C
TDS2001C
TDS1012C-EDU
TDS1002C-EDU
TDS1001C-EDU
Rise time is generally calculated from the followi ng formula: Rise time in ns = 350 / Bandwidth in MHz
This is the capability of the instrument to capture single event pulses using the Peak Detect Acquisition
Mode.
The minimum single pulse widths for guaranteed 50% or greater amplitude capture are as follows:
Model
TDS1002C-EDU
TDS1012C-EDU
TDS2002C
TDS2004C
TDS2012C
TDS2014C
TDS2022C
TDS2024C
TDS1001C-EDU
TDS2001C
These are the ranges of the user-settable input offset voltage.
Volts/Div Setting
2 mV/div to 200 mV/div
> 200 mV/div to 5 V/div
Expected full bandwidth rise time
2.1 ns
3.5 ns
5.0 ns
7.0 ns
3.5 ns
5.8 ns
8.8 ns
Sec/Div Setting
50 sec/div to 5 μS/div
50 sec/div to 5 μS/div
Position Range
±1.8V
±45V
Minimum Pulse Width
12 ns
13 ns
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 5
Specifications
Table 1: Signal acquisition system characteristics (cont.)
√ Vertical Position
Accuracy
Common Mode
Rejection Ratio (CMRR),
typical
Crosstalk (Channel
Isolation)
This is the accuracy of the nominal voltage level represented by the code at the vendor of the A-D
converter's dynamic range.
Volts/Div Setting
2 mV/div to 200 mV/div ±(1% of |selected value| + 0.1 div + 5 mV) within the
> 200 mV/div to 5 V/div ±(1% of |selected value| + 0.1 div + 125 mV) within the
With the same signal applied to each channel, CMRR is the ratio of the acquired signal amplitude to the
amplitude of the M ATH difference waveform, either (Channel 1 - Channel 2), (Channel 2 - Channel 1),
(Channel 3 - Channel 4) or (Channel 4 - Channel 3)
Model
TDS1012C-EDU
TDS2012C
TDS2014C
TDS2022C
TDS2024C
TDS1001C-EDU
TDS1002C-EDU
TDS2001C
TDS2002C
TDS2004C
Section 4.11.1 of IEEE std. 1057. It is the r atio of the level of a signal input into one channel to that of
the same signal present in another channel due to stray coupling.
Model
TDS2022C
TDS2024C
TDS1012C-EDU
TDS2012C
TDS2014C
TDS1002C-EDU
TDS2002C
TDS2004C
TDS1001C-EDU
TDS2001C
Common Mode Rejection Ratio
100:1 at 60 Hz, reducing to 10:1 with 50 MHz sine wave, with equal
Volts/Div and Coupling settings on each channel.
100:1 at 60 Hz, reducing to 20:1 with a sine wave with frequency equal to
½ the -3 dB bandwidth and with equal Volts//Div and Coupling settings
on each channel.
Crosstalk
≥ 100:1 with a 100 MHz sine wave and with equal V/div settings on each
channel
≥ 100:1 with a 50 MHz sine wave and with equal V/div settings on each
channel
≥ 100:1 with a 30 MHz sine wave and with equal V/div settings on each
channel
≥ 100:1 with a 20 MHz sine wave and with equal V/div settings on each
channel
Position Accuracy
range ±1.8 V
range ±45 V
6 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Specifications
Time Base Syst
em
Table 2: Time base system
Characteris
Sample-Rate
Recor
√ Long-Term Sample
Rate and Horizontal
sition Time Accuracy
Po
Horizontal Position Time
nge
Ra
Horizontal Window
Display
tic
Range
d Length
Description
This is the ra
its inputs and stores the samples in memory to produce a record of time-sequential samples. (IEEE
1057, 2.2.1)
Model
TDS2012C
TDS2014C
TDS2022C
TDS2024C
TDS1001C-EDU
TDS1002C
TDS1012C-EDU
TDS2001C
TDS2002
TDS2004C
(Sin x)/x interpolationWaveform Interpolation
Waveform interpolation is activated for sweep speeds of 100 ns/div and faster.
This is the total number of samples contained in a single acquired waveform record (Memory Length in
IEEE 1057.2.2.1).
2,500 samples per record.
5 n s/div to 50 s/div in 1–2.5–5 sequenceSeconds/Division Range
Sec/Div Variable function is not available for this product.
s is the maximum, total, long-term error in sample-rate or horizontal position time accuracy, expressed
Thi
in parts per million.
0 ppm over any ≥1 ms interval.
±5
Horizontal scale setting Horizontal position time range
5ns/divto10ns/div
5 ns/div to 100 μs/div
2
250 μs/divto10s/div
25 s/div to 50 s/div
The user controls the time from the trigger to the center graticule on the display with the Horizontal
Position knob.
The resolution of the Horizontal Position time is 1/25 of a horizontal division.
The Window Zone enables a user to select a part of the display to be magnified. The user controls the
location with the Horizontal Position knob and the width with the Sec/Div knob. Vertical cursors show the
selected zone. To magnify the zone, the user selects the window from the menu.
nge of real-time rates, expressed in samples/second, at which a digitizer samples signals at
Sample-rate range
5 S/s to 2000 MS/s
5 S/s to 1000 MS/s
-EDU
C
-4 div * s/div to 20 ms
4 div * s/div to 50 ms
-
-4 div * s/div to 50 s
-4 div * s/div to 250 s
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 7
Specifications
Table2: Timebasesystem(cont.)
Characteristic
Delta Time Measurement
Accuracy
Time Measurement
Functions
Description
This is the accuracy of delta time measurements made on any single waveform.
The limits are given in the following table for signals having an amplitude ≥ 5 divisions, a slew rate at the
measurement points of ≥ 2.0 divisions/ns, and acquired ≥ 10 mV/div.
Condition
Single shot, sample mode,
full bandwidth selected
> 16 averages,
full bandwidth selected
The Sample Interval is the time between the samples in the waveform record.
Frequency, Period, Rise Time, Fall Time, Positive Width, negative Width, Positive Duty Cycle, Phase,
Delay
Time Measurement Accuracy
±(1 Sample Internal + 100 ppm * |reading| + 0.6 ns)
±(1 Sample Internal + 100 ppm * |reading| + 0.4 ns)
8 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Specifications
Triggering Sy
stem
Table 3: Triggering system
Characteris
Trigger Types Edge, Video, Pulse Width
Trigger Source
Selection
Horizontal Trigger
Posit
Trigg
External Trigger Input
Impedance
External Trigger
Maximum Input Voltage
ine Trigger
L
Characteristics
Edge Trigger
tic
ion
er Holdoff Range
Trigger Modes Auto, Normal
Description
Models Trigger source selections
TDS1001C-EDU
TDS1002C-EDU
TDS1012CTDS2001C
TDS2002C
TDS2012C
TDS2022C
TDS2004C
TDS2014C
TDS2024C
External/5 selection attenuates the external signal by 5.
When Bandwidth Limit is selected for a channel, the bandwidth of that channel’s trigger path will also be
d. The bandwidth of the External Trigger path is not affected by the bandwidth limit.
limite
The trigger position is set by the Horizontal Position knob.
500 ns minimum to 10 s maximum
The ability to set large values of Holdoff is limited by the difficulty in adjusting the Holdoff at Sec/Div
ings less than 100 ms/Div. This is because Holdoff c annot be set in Scan Mode, which begins at
sett
100 ms/div when Trigger Mode is AUTO. By adjusting Trigger Mode to NORMAL, the Scan Mode
operation is turned off, and Holdoff can be adjusted at larger seconds/Div settings.
1M±2%inparallelwith20pF±3pF
300 V
an
Ba
±5 V/div at 4 divisions, or 70 V. AC coupling allows measuring signals on a DC level up to 300 V. For
nonsinusoidal waveforms, peak value must be less than 450 V. Excursions above 300 V s hould be less
han 100 ms duration and the duty factor is limited to < 44%. R MS signal level must be limited to 300 V. If
t
these values are exceeded, damage to the instrument may result.
Line Trigger mode provides a source to synchronize the trigger with the AC line input.
Input Amplitude requirements: 85 V
Input Frequency requirements: 45 Hz - 440 Hz.
, Installation Category II; derate at 20 dB/decade above 100 kHz to 13 V peak AC at 3 MHz
RMS
d above
sed on sinusoidal or DC input signal. The maximum viewable signal while DC coupled is ±50 V offset
EDU
Channel 1
Channel 2
External
External/5
AC Line
Channel 1
Channel 2
Channel 3
Channel 4
External
l/5
Externa
AC Line
- 265 VAC.
AC
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 9
Specifications
Table 3: Triggering system (cont.)
Characteristic Description
AC, DC, Noise Reject, High Frequency Reject, Low Frequency RejectTrigger Coupling
The External Trigger path does not have a DC blocking capacitor ahead of the trigger input circuit. The
rolloff associated with AC coupling happens after the input circuit. When attempting to trigger on an AC
signal that has a DC offset, care must be used to avoid overloading the input of the External Trigger
circuit. For signals that have a large DC offset, using Channel 1 or Channel 2 (and Channel 3 or Channel
4 for the TDS20X4B) with AC coupling is preferred.
Trigger Slope
√ Sensitivity,
Edge-TypeTrigger,
DC Coupled
Rising Edge, Falling Edge
Measurement Style A) The minimum signal levels for achieving stable frequency indication on the Trigger
Frequency C ounter within 1% of correct indication.
Measurement Style B) Section 4 10.2 in IEEE Std. #1057. The minimum signal levels required for stable
edge triggering of an acquisition when the trigger Source is DC coupled.
Trigger Source Sensitivity (Measurement
Channel Inputs
Ext
Ext/5
Trigger Frequency Readout typically stabilizes at 50% more signal than generates a stable visual display.
All products
TDS1001C-EDU
TDS1002C-EDU
TDS2001C
TDS2002C
TDS2004C
TDS1012C-EDU
TDS2012C
TDS2014C
TDS2022C
TDS2024C
All products
TDS2022C
TDS2024C
All products
TDS2022C
TDS2024C
Sensitivity (Measurement
style A ), typical
1.5 div from DC to
10 MHz ( > 2 mV/div)
4 div from DC to 10 MHz
(2 mV/Div)
3 div between 10 MHz
and 40 MHz
3 div between 10 MHz
and 60 MHz
3 div between 10 MHz
and 50 MHz
3 div between 10 MHz
and 70 MHz
3 div between 10 MHz
and 100 MHz
3 div between 10 MHz
and 200 MHz
300 mV from DC to
100 MHz
500 mV from 100 MHz to
200 MHz
1.5 Vfrom DC to100 MHz 1 V from DC to 100 MHz
2.5 V from 100 MHz to
200 MHz
style B)
1 div from DC to 10 MHz >
2mV/div)
2.5 div from DC to 10 MHz
(2 mV/Div)
1.5 div between 10 MHz and
40 MHz
1.5 div between 10 MHz and
60 MHz
1.5 div between 10 MHz and
50 MHz
1.5 div between 10 MHz and
70 MHz
1.5 div between 10 MHz and
100 MHz
1.5 div from 10 MHz to
100 MHz
2.0 div above 100 MHz to
200 MHz
200 mV from DC to 100 MHz
350 mV from 100 MHz to
200 MHz
1.75 V from 100 MHz to
200 MHz
10 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Table 3: Triggering system (cont.)
Characteristic Description
Sensitivity,
Edge-Type Trigger,
non-DC Coupled,
typical
for Successful
Operation of “Set
Level to 50%”
Function, typical
Trigger Level
Ranges, typical
Trigger Level
Accuracy, DC
Coupled, typical
Video Trigger
Default Settings
for Video Trigger
Video Trigger
Source Selection
Video Trigger
Polarity Selection
Video Sync
Selection
Formats and Field
Rates
Trigger Source Sensitivity
AC Same as DC Coupled limits for frequencies 50 Hz and
Noise Rej
HF Rej
LF Ref Same as DC Coupled limits for frequencies above 300 kHz.
Since AC coupling is not done in the front end, use of a 10M probe does not affect the low frequency
corner.
50 Hz.Lowest Frequency
Using a 10M probe will not affect the operation of this function.
Input Channel ±8 divisions from center screen
Ext ±1.6 V
Ext/5:
The settable resolution for Trigger Level is 0.02 division for an input channel source, 4 mV for Ext source,
and 20 mV for Ext/5 source.
This is the amount of deviation allowed between the level on the waveform at which triggering occurs and
the level selected for DC-coupled triggering signals
±(0.2 d iv + 5 mV) for signals within ±4 divisions from the center screen, having rise and fall times
of ≥ 20 ns.
Ext: ±(6% of setting + 40 mV) for signals less than ±800 mV
Ext/5: ±(6% of setting + 200 mV) for signals less than ±4 V
Trigger Mode: Auto
Trigger Coupling: AC
Same as Trigger Source Selections listed above except Line Trigger. Line Trigger source is meaningless
in this mode.
Normal (Negative going Sync Signal), Invert (Positive going Sync Signal)
Line, Line #, Odd Field, Even F ield, Field: PAL/SECAM, NTSC formats
Field rates: 50 Hz to 60 Hz.Video Trigger
Line rates: 15 kHz to 20 kHz (NTSC, PAL, SECAM)
Specifications
above
Effective in Sample or Average Mode, > 10 mV/div to
5 V/div. Reduces DC Coupled trigger sensitivity by 2X.
Same as DC Coupled limits from DC to 7 kHz.
±8 V
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 11
Specifications
Table 3: Triggering system (cont.)
Characteristic Description
Video Trigger
Sensitivity, typical
Pulse-Width Trigger
Pulse-Width
Trigger Modes
Pulse Width
Trigger Edge
Pulse Width Range 33 ns ≤ width ≤ 10 seconds
Pulse Width
Resolution
Equal Guardband
Not Equal
Guardband
Pulse-Width
Trigger Point
Trigger Frequency Counter
Trigger Frequency
Counter
This is the minimum peak–to–peak video signal required for stable Video-Type triggering.
Source
Input Channels 2 divisions of composite video
Ext
Ext/5 2 V of composite video
< (Less than), > (Greater than), = (Equal), ≠ (Not equal)
Falling edge for positive polarity pulse. Rising edge for negative polarity pulse.
16.5 ns or 1 part per thousand, whichever is larger
t > 330 ns: ±5% < guardband < ±(5.1% + 16.5 ns)
t ≤ 330 ns: guardband = ±16.5 ns.
All pulses, even from the most stable sources, have some amount of jitter. To avoid disqualifying pulses
that are intended to qualify but are not absolutely correct values, we provide an arbitrary guardband. Any
measured pulse width within the guardband will qualify. If you are looking for pulse width differences that
are smaller than the guardband width, offsetting the center should allow discriminating differences down
to the guardband accuracy.
330 ns < 1: ±5% ≤ guardband < ±(5.1% + 16.5 ns)
165 ns < 1 < 330 ns: guardband = -16.5 ns/+33 ns
t ≤ 165 ns: guardband = ±16.5 ns
All pulses, even from the most stable sources, have some amount of jitter. To avoid disqualifying pulses
that are intended to qualify but are not absolutely correct values, we provide an arbitrary guardband. Any
measured pulse width outside the guardband will qualify. If you are looking for pulse width differences
that are smaller than the guardband width, offsetting the center should allow discriminating differences
down to the guardband accuracy. Not equal has slightly better ability to deal with small pulse widths
than equal. The accuracy is not better.
Equal: The oscilloscope triggers when the trailing edge of the pulse crosses the trigger level.
Not Equal: If the pulse is narrower than the specified width, the trigger point is the trailing edge. Otherwise,
the oscilloscope triggers when a pulse continues longer than the time specified as the Pulse Width.
Less than: The trigger point is the trailing edge.
Greater than (also called the time out trigger): The oscilloscope triggers when a pulse continues longer
than the time specified as the Pulse Width.
This provides a highly accurate means of identifying the frequency of trigger signals. Since averaging
takes place over a longer time span, the number of stable digits is improved over the automatic
measurement of the same type.
Typical sensitivity
400 mV of composite video
12 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Table 3: Triggering system (cont.)
Specifications
Frequency
Counter
Resolution
Frequency
Counter Accuracy,
typical
Frequency
Counter
Frequency Range,
typical
Counter Signal
Source
6 digits
±51 ppm including all reference errors and ±1 count errors.
AC coupled. 10 Hz minimum to rated bandwidth.
Pulse width or edge sele cted trigger source.Frequency
Frequency counter measures selected trigger source at all times in pulse width and edge mode, including
when oscilloscope acquisition is halted due to changes in run status, or acquisition of a single shot
event has completed.
Frequency counter does NOT measure pulses that do not qualify as legitimate trigger events.
Pulse Width mode: Counts pulses of sufficient magnitude inside the 250 ms measurement window
that qualify as triggerable events (for example, all narrow pulses in a PWM pulse train if set to < mode
and the limit is set to a relatively small number).
Edge Trigger mode: Counts all pulses of sufficient magnitude.
Display Specifications
Table 4: Display specifications
Characteristic Description
Display Type
Display Resolution
Brightness, typical
Contrast Ratio and
Control, typical
11.5 cm (width) * 8.64 cm (height), 14.3 cm diagonal (5.7”), QVGA, active TFT color liquid crystal display
(LCD) with color characters/waveforms on a black background. Surface antiglare (3H) treatment.
This is the number of individually addressable pixels
320 horizontal by 240 vertical pixels
The video display contains both the character and waveform displays.
This is the light output of the backlight.
400 cd/m
Available black room contrast ratio, full black to full white. 400 minimum, 500 typical.
2
, typical. 320 cd/m2min.
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 13
Specifications
Interfaces an
d Output Ports Specifications
Table 5: Interfaces and output ports specifications
Characteris
USB Device USB 2.0 Full S
USB H ost USB 2.0 Full Speed host. 12 Mb/sec maximum. Supports USB Mass Storage Class. Bulk Only Subclass
USB Host Current Provides full 0.5 A of 5 V.
GPIB Interface GPIB access via TEK-USB-488 accessory.
Output V
Frequency, typical
Data Ha
tic
oltage and
Description
USB-TMC communications with Tektronix extensions.
Standard
only. Prov
Standard
Standard
Output voltage: 5.0 V ±10% into 1 MΩ load.Probe Compensator,
Frequency: 1 kHz
ides full 0.5 A of 5 V.
ndling Characteristics
peed device. 12 Mb/second maximum. Supports PICTBRIDGE compatibility and provides
Table 6: Data handling characteristics
cteristic
Chara
ntion of Front
Rete
Panel Settings
Stored Waveforms and
Multiple Front Panel
tings
Set
iption
Descr
Front panel settings are stored periodically in memory. The settings are not lost when the instrument is
ed off or if there is a power failure.
turn
Two Channel 1, Channel 2, or Math waveforms can be stored in nonvolatile waveform memory A or
B. One, both, or neither of A or B waveform memories can be displayed. For the TDS20X4C, four
eforms, A, B, C, D, or Math can be stored. Ten user setups of the current instrument settings can be
wav
saved and restored from nonvolatile memory. Additional storage is available when an appropriate mass
storage device is connected via USB.
Power Distribution System
ble 7: Power distribution system
Ta
Characteristic Description
ess than 30 W a t 85 to 275 V
Power Consumption
Source Voltage Full Range: 100 to 240 V
Source Frequency 360 Hz to 440 Hz from 100 VACto 120 VAC.
Fuse Rating
L
ACRMS
45 Hz to 66 Hz from 100 V
3.15 Amps, T rating, 250 V; IEC and UL approved.
input.
AC
± 10%, Installation Category II (Covers range of 90 to 264 V
to 240 VAC.
AC
AC
14 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Specifications
Mechanical Ch
aracteristics
Table 8: Mechanical characteristics
Characteris
Weight
Size
Cooling
tic
Method
Description
Requirement
2.0 k g (4.4 lbs), stand-alone instrument
2.2 kg (4.9 lbs), with accessories
3.6kg(8lbs
Height
Width
Depth
Convect
s that follow are nominal:
), when packaged for domestic shipment
ion cooled
Environmental Performance
Table 9: Environmental performance
Characteristic Description
Temperature
Humidity
Altitude
Operating 0° C to +50° C (32 °F to 122 °F), with 5° C/minute maximum gradient,
Nonoperating
ating
Oper
Nonoperating
erating
Op
Nonoperating
158 mm (6.2
326.3 mm (1
124.1 mm (
nonco
-40°
5% to
5% to 45% RH above +40° C up to +50° C, noncondensing, and as limited
by a Maximum Wet-Bulb Temperature of +37° C (derates relative humidity
5 % RH at +50° C)
to 4
o 85% relative humidity (% RH) at up to +40° C
5% t
5% to 45% RH above +40° C up to + 50° C, noncondensing.
Above +50° C limited by a Maximum Wet-Bulb Temperature of +37° C
erates relative humidity to 12% RH at +71° C)
(d
to 3000 meters (10,000 feet)
Up
p to 3000 meters (10,000 feet).
U
Altitude is limited by possible damage to the L CD at higher altitudes. This
damage is independent of operation
2in)
2.85 in)
4.88 in)
ndensing, up to 3000 m altitude
C to + 71° C (-40 °F to 159.8 °F), with 5° C/minute maximum gradient
85% relative humidity (% R H) at up to +40° C
Data Logging System Characteristics (Not Available on T DS1000C-EDU M odels)
NOTE. This software feature directs the oscilloscope to autom atically collect
data over a period of time. After you configure the trigger conditions to use,
you can use the data logging menu to set up the oscilloscope so that it will save
all of the triggered waveform to a USB memory device, within a time duration
that you have set.
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 15
Specifications
Table 10: Data l
Characteristic Description
Duration The time perio
Source The signal source which you want to save the waveform.
Select Fold
ogging system characteristics (not available on TDS1000C-EDU models)
d.
30 min, 1 hour, 1.5 hour, 2 hour, 2.5 hour, 3 hour, 3.5 hour, 4 hour, 4.5 hour, 5 hour, 5.5 hour, 6 hour, 6.5
hour, 7 hour, 7.5 hour, 8 hour.
Channel 1, C
er
The file fold
You can create the new folder or change the existing folder as the folder where you want to save the
waveform data.
hannel 2, Channel 3, Channel 4, Math
er where you save the waveform data.
Limit Testing System Characteristics (Not Available on TDS1000C-EDU Models)
NOTE. This software feature directs the oscilloscope to monitor an active input
signal against a template and to output pass or fail results by judging whether
the input signal is within the bounds of the template.
Table 11: Limit testing system chara cteristics (not available on TDS1000C-EDU models)
teristic
Charac
e
Sourc
re Ref Channel
Compa
Run/Stop To enable or disable the limit testing function.
Template Setup You can use this menu item to set up a limit test waveform template. The template is the mask signal that
Source The location of the signal source that is used to create the limit test template.
Vertical Limit The vertical limit in vertical divisions.
Horizontal Limit The horizontal limit in horizontal divisions.
Destination Ref Channel The location of the reference memory location that is used to store the limit test template.
Display Template Displays or does not display a stored test template.
ption
Descri
The signal source which you want to do the limit testing.
el 1, Channel 2, Channel 3, Channel 4, Math
Chann
ference channel # where the template is saved.
The re
RefA, RefB, RefC, RefD. The limit testing system will compare the source signal with this template.
Run, Stop.
define as the boundary to compare with the input source signal. You can create the template from
you
internal or external waveforms with specific horizontal and vertical tolerances.
Channel 1, Channel 2, Channel 3, Channel 4, Math
0~1000 mdiv
0~500 mdiv.
RefA, RefB, RefC, RefD.
On, Off.
16 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Table 11: Limit testing system characteristics (not available on TDS1000C-EDU models) (cont.)
Characteristic Description
Action on Violation
Stop After Defines the conditions that will cause the oscilloscope to end limit testing.
Defines the actions the o scilloscope will take after a violation is detected.
Save Image: The oscilloscope will automatically save a screen image when a violation is detected.
Save Waveform: The oscilloscope will automatically save a digital copy of the source waveform when
a violation is detected.
Manual: Lets you stop the test by toggling the “Run/stop” choice.
Waveforms: Lets you set the numbers of waveforms to test before stopping limit testing.
Violations: Lets you set the numbers of violations to detect before stopping limit testing.
Elapsed time: Lets you set the elapsed test time in seconds to pass before stopping limit testing.
Specifications
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 17
Specifications
18 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
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