Tektronix tds210 schematic

Service Manual

TDS 200-Series
Digital Real-Time Oscilloscope

071-0492-03

This document supports firmware 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.

www.tektronix.com

Copyright © Tektronix, Inc. All rights reserved.

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

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

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY

Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for
a period of three (3) years from the date of purchase from an authorized Tektronix distributor. If any such product proves
defective during this warranty period, Tektronix, 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. Batteries are excluded from this warranty.

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 Tektronix, shipping charges prepaid, and with a copy of
customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the shipment is to a location
within the country in which the Tektronix 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. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts
by personnel other than Tektronix representatives to install, repair or service the product; b) to repair damage resulting from
improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of
non-Tektronix supplies; or d) 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 THE LISTED PRODUCTS IN LIEU OF
ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Table of Contents

Specifications

Operating Information

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

Service Safety Summary vii....................................

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

Related Manuals ix.................................................

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

Product End-of-Life Handling x......................................

Specifications 1--1.............................................

Operating Information 2--1.....................................

General Features 2--2.................................................

Installation 2--3......................................................

Extension Modules 2--4...............................................

Functional Check 2--5................................................

Probe Compensation 2--6..............................................

Self Calibration 2--7..................................................

Probe Safety 2--7....................................................

Probe Attenuation Setting 2--7..........................................

Factory Setup 2--8...................................................

Theory of Operation

Theory of Operation 3--1.......................................

Main Board 3--1.....................................................

Power Supply 3--2...................................................

Display Module 3--2..................................................

Front Panel 3--2.....................................................

Extension Modules 3--2...............................................

Performance Verification

Performance Verification 4--1...................................

Test Record 4--2.....................................................

Performance Verification Procedures 4--4.................................

Adjustment Procedures

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

Required Equipment 5--1..............................................

Adjustment Procedure 5--2.............................................

TDS 200 Series Digital Oscilloscope Service Manual

i

Table of Contents

Maintenance

Options

Electrical Parts List

Diagrams

Maintenance 6--1..............................................

Preparation 6--1.....................................................

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

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

Removal and Installation Procedures 6--5.................................

Troubleshooting 6--38.................................................

Repackaging Instructions 6--48..........................................

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

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

Diagrams 9--1.................................................

Replaceable Parts

Replaceable Parts 10--1..........................................

Parts Ordering Information 10--1.........................................

Using the Replaceable Parts List 10--2.....................................

ii

TDS 200 Series Digital Oscilloscope Service Manual

List of Figures

Table of Contents

Figure 2--1: Routing the power cord and security cable 2--3..........

Figure 2--2: Installing an extension module 2--4....................

Figure 3--1: Module-level block diagram (two channel) 3--3..........

Figure 3--2: Module-level block diagram (four channel) 3--4..........

Figure 5--1: Service menu enable button 5--2.......................

Figure 5--2: Adjustment setups 5--3...............................

Figure 6--1: Removing the rear feet 6--8...........................

Figure 6--2: Installing the rear feet 6--9............................

Figure 6--3: Installing a front-case label 6--10.......................

Figure 6--4: Installing a new rear-case label 6--11....................

Figure 6--5: Removing the handle 6--12............................

Figure 6--6: Installing the handle 6--13.............................

Figure 6--7: Removing and installing the rear cover 6--15.............

Figure 6--8: Removing and installing the front feet 6--16..............

Figure 6--9: Removing and installing the EMI clips 6--17..............

Figure 6--10: Removing the flip stand 6--18.........................

Figure 6--11: Installing the flip stand 6--19..........................

Figure 6--12: Line fuse location 6--20..............................

Figure 6--13: Removing the power supply module 6--21...............

Figure 6--14: Installing the power supply module 6--22...............

Figure 6--15: Removing and installing the internal assembly 6--24......

Figure 6--16: Installing the copper mesh grounding tube 6--25.........

Figure 6--17: Main board removal 6--26............................

Figure 6--18: Main board installation 6--27.........................

Figure 6--19: Removing the display module 6--28....................

Figure 6--20: Installing the display module 6--30.....................

Figure 6--21: Removing the front panel module 6--31.................

Figure 6--22: Installing the front panel module 6--32.................

Figure 6--23: Removing and installing the keypad 6--33...............

Figure 6--24: Removing the display shield 6--35......................

Figure 6--25: Installing the display shield 6--36......................

Figure 6--26: Measuring the backlight voltage 6--41..................

Figure 10--1: Exploded diagram 10--7..............................

TDS 200 Series Digital Oscilloscope Service Manual

iii

Table of Contents

List of Tables

Table 1--1: Specifications 1--1...................................

Table 1--2: General specifications 1--5............................

Table 2--1: Factory setup settings 2--8............................

Table 5--1: Required equipment 5--1.............................

Table 5--2: TDS 210 and TDS 220 Adjustment steps 5--5.............

Table 5--3: TDS 224 Adjustment steps 5--7........................

Table 6--1: Internal inspection check list 6--3......................

Table 6--2: List of procedures 6--7................................

Table 6--3: List of error codes 6--46...............................

Table 10--1: Parts list column descriptions 10--2.....................

Table 10--2: Manufacturers cross index 10--3.......................

Table 10--3: Replaceable parts list 10--3............................

Table 10--4: Replaceable standard accessories 10--8..................

Table 10--5: Replaceable optional accessories 10--8..................

iv

TDS 200 Series Digital Oscilloscope Service Manual

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.

Only qualified personnel should perform service procedures.

Injury Precautions

Use Proper Power Cord. To avoid fire hazard, use only the power cord specified
for this product.

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

Avoid Overvoltage. To avoid electric shock or fire hazard, do not apply potential
to any terminal, including the common terminal, that varies from ground by more
than the maximum rating for that terminal.

Avoid Electric Shock. To avoid injury or loss of life, do not connect or disconnect
probes or test leads while they are connected to a voltage source.

Ground the Product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.

Connect the Probe Properly. The probe ground lead is at ground potential. Do not
connect the ground lead to an elevated voltage.

Do Not Operate Without Covers. To avoid electric shock or fire hazard, do not
operate this product with covers or panels removed.

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

Do Not Operate in Wet/Damp Conditions. To avoid electric shock, do not operate
this product in wet or damp conditions.

Do Not Operate in an Explosive Atmosphere. To avoid injury or fire hazard, do not
operate this product in an explosive atmosphere.

Product Damage

Precautions

TDS 200 Series Digital Oscilloscope Service Manual

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

Provide Proper Ventilation. To prevent product overheating, provide proper
ventilation.

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

v

General Safety Summary

Symbols and Terms

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

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

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

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

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

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

CAUTION indicates a hazard to property including the product.

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

Certifications and

Compliances

DANGER

High Voltage

Protective Ground

(Earth) Terminal

ATTENTION

Refer to Manual

Double

Insulated

Refer to the specifications section for a listing of certifications and compliances
that apply to this product.

vi

TDS 200 Series Digital Oscilloscope Service Manual

Service Safety Summary

Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service

procedures.

Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.

Disconnect Power. To avoid electric shock, disconnect the main power by means
of the power cord or, if provided, the power switch.

Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.

To avoid electric shock, do not touch exposed connections.

TDS 200 Series Digital Oscilloscope Service Manual

vii

Service Safety Summary

viii

TDS 200 Series Digital Oscilloscope Service Manual

Preface

Related Manuals

The service manual for the TDS 200-Series Digital Real-Time Oscilloscope
provides information to troubleshoot and repair the instrument to the module
level.

Some TDS models have two input channels and an external trigger while other
models have four input channels. Most illustrations in this manual show a two
channel model. Some parts for the four channel model are slightly different
because of the additional channels.

Additional documentation for the instrument is contained in the related manuals
listed below.

Extension module

User manual

Language

English 071-0398-XX 071-0409-XX 071-0493-XX

French 071-0400-XX* 071-0483-XX

German 071-0402-XX* 071-0485-XX

Italian 071-0401-XX* 071-0484-XX

Spanish 071-0399-XX* 071-0482-XX

Portuguese 071-0403-XX* 071-0486-XX

Japanese 071-0405-XX* 071-0488-XX

Korean 071-0408-XX* 071-0491-XX

Simplified Chinese 071-0406-XX* 071-0489-XX

Traditional Chinese 071-0407-XX* 071-0490-XX

Russian 071-0404-XX 071-0487-XX

*These manuals contain a language overlay for the front-panel controls.

part number

instructions part
number

Programmer manual
part number

TDS 200 Series Digital Oscilloscope Service Manual

ix

Preface

Contacting Tektronix

Phone [phone]*

Address Tektronix, Inc.

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

Web site www.tektronix.com

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

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

Technical support Email: [e-mail]

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

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

Product End-of-Life Handling

Components that Contain Mercury. The cold cathode fluorescent tube located in
the liquid crystal display backlight contains trace elements of mercury. When you
are ready to reclaim the instrument, you must properly transfer it according to
local regulations concerning mercury-containing equipment or ship the instru­ment to the Tektronix Recycling Operations (RAMS). You can contact
Tektronix for the RAMS shipping address and instructions.

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

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

x

TDS 200 Series Digital Oscilloscope Service Manual

Specifications

g

q

p

,

g

All specifications apply to the TDS 200-Series Digital Real-Time Oscilloscope
with a P2100 probe with the Attenuation switch set to 10X unless noted
otherwise. To meet specifications, two conditions must first be met:

H The instrument must have been operating continuously for twenty minutes

within the specified operating temperature.

H You must perform the Self Cal operation, accessible through the utility menu,

if the operating temperature changes by more than 5° C.

All specifications are guaranteed unless noted “typical.” Specifications that are
marked with the n symbol are checked in the chapter Performance Verification.

Table 1--1: Specifications

Acquisition

Acquisition Modes Sample, Peak detect, and Average

Acquisition Rate,
typical

Single Sequence Acquisition Mode Acquisition Stops After

Up to 180 waveforms per second, per channel (Sample acquisition mode, no measurements)

Sample, Peak Detect Single acquisition, all channels simultaneously

Average N acquisitions, all channels simultaneously, N is

selectable from 4, 16, 64, and 128

Inputs

Input Coupling DC, AC, or GND

Input Impedance,
DC Coupled, all channela

Input Impedance,
DC Coupled,
EXT TRIG only

P2100 Probe Attenuation 1X, 10X

Probe Attenuation Factors 1X, 10X, 100X, 1000X

Maximum Voltage Between Overvoltage Category Maximum Voltage
Signal and Common at
input BNC

* Bandwidth is not valid for the P2100 probe when the switch is set to 1X.

1MΩ ±2% in parallel with 20 pF ±3pF

TDS 210 (B099188 to B119999 & C021679 to C029999)
TDS 220 (B065810 to B079999 & C021127 to C029999)

1.2 MΩ ±5% in parallel with 20 pF ±5pF

CAT I and CAT II

CAT III 150 V

For steady-state sinusoidal waveforms, derate at 20 dB/decade above 100 kHz to 13 Vpkat 3 MHz* and
above. Also, refer to Overvoltage Category description on page 1--7.

All other TDS 210, TDS 220, and TDS 224

1MΩ ±5% in parallel with 20 pF ±5pF

300 V
width < 100 msec.)

(420 V peak, duty factor < 50%, pulse

RMS

RMS

TDS 200 Series Digital Oscilloscope Service Manual

1--1

Specifications

g

inputBN

C

g

tBN

C

ithP210

0

g

5s/div),t

ypical

Table 1--1: Specifications (cont.)

Inputs

Maximum Voltage Between Overvoltage Category Maximum Voltage
Probe Tip and ground
using P2100 connected to

Time delay between
channels, typical

Channel-to-Channel TDS 210 TDS 220 and TDS 224
Common Mode Rejection,
typical

Channel-to-Channel Cross- TDS 210 TDS 220 and TDS 224
talk

CAT I and CAT II 300 V

(500 V peak, duty factor < 35%, pulse

RMS

width < 100 msec.)

CAT III 100 V

Derate at 20 dB/decade above 900 kHz to 13 V

at 27 MHz* and above. Also, refer to Overvoltage

RMS

RMS

Category description on page 1--7.

150 ps

100:1 at 60 Hz
20:1at30MHz*

100:1 at 60 Hz
20:1at50MHz*

Measured on MATH Ch1 -- Ch2 waveform, with test signal applied between signal and common of both
channels, and with the same VOLTS/DIV and coupling settings on each channel. Also measured on MATH
Ch3 -- Ch4 waveform for the TDS 224.

≥100:1 at 30 MHz*

≥100:1 at 50 MHz*

Measured on one channel, with 8 division test signal applied between signal and common of the other
channel, the same VOLTS/DIV and coupling settings on each channel, and 50 Ω terminators on each
channel.

Vertical

Digitizers 8 bit resolution (except when set to 2 mV/div), each channel sampled simultaneously

VOLTS/DIV Range 2 mV/div to 5 V/div at input BNC

(Full bandwidth at >5 mV/div to 5 V/div, 20 MHz at 2 mV/dif to 5 mV/div, except in Peak Detect mode full
bandwidth at >10 mV/div to 5 V/div [20 MHz at 2 mV/div to 10 mV/div])

Position Range 2 mV/div to 200 mV/div, ±2V

> 200 mV/div to 5 V/div, ±50 V

n Analog Bandwidth in

Sample and Average modes
a

or w

DC Coupled

Analog Bandwidth in Peak TDS 210 TDS 220 and TDS 224
Detect mode (5 s/div to

Selectable Analog Band­width Limit, typical

probe,

Lower Frequency Limit,
AC Coupled

TDS 210 TDS 220 and TDS 224

60 MHz* (when vertical scale set to > 5 mV/div) 100 MHz* (when vertical scale set to > 5 mV/div)

* (when vertical scale set to ≤ 5mV/div)

20 MHz

50 MHz* (when vertical scale set to > 10 mV/div) 75 MHz* (when vertical scale set to > 10 mV/div)

20 MHz* (when vertical scale set to ≤ 10 mV/div)

20 MHz*

≤10 Hz at BNC

≤1 Hz when using a 10X passive probe

* Bandwidth is not valid for the P2100 probe when the switch is set to 1X.

1--2

TDS 200 Series Digital Oscilloscope Service Manual

Table 1--1: Specifications (cont.)

,yp

y

Vertical

Rise Time at BNC, typical TDS 210 TDS220 and TDS 224

<5.8 ns <3.5 ns

Peak Detect Response

n DC Gain Accuracy

DC Measurement Accu- Measurement Type Accuracy
racy, Average Acquisition
Mode

Captures 50% or greater amplitude of pulses ≥10 ns wide (5 s/div to 5 s/div) in the center 6 vertical
divisions. The oscilloscope reverts to Sample mode when the sec/div (Horizontal scale) setting is from

2.5 s/div to 5 ns/div. The Sample mode can still capture 10 ns glitches.

TDS210 and TDS220 TDS224

2 mV/div and larger, ±3% for Sample or Average
acquisition mode

2 mV/div to 5 mV/div, ±4% for Sample or
Average acquisition mode

10 mV/div and larger, ±3% for Sample or
Average acquisition mode

Average of ≥16 waveforms with vertical position at zero

TDS224:

±(4% × reading + 0.1 div + 1 mV) and either
2 mV/div or 5 mV/div is selected.

Specifications

±(3% × reading + 0.1 div + 1 mV) and 10 mV/div
or greater is selected

TDS210 and TDS220:

±(3% × reading + 0.1 div + 1 mV) for all ranges

Average of ≥16 waveforms with vertical position not at
zero

TDS210, TDS220 and TDS224:

±[3% × (reading + vertical position) + 1% of
vertical position + 0.2 div]

Add 2 mV for settings from 2 mV/div to 200 mV/
div. Add 50 mV for settings from >200 mV/div to
5V/div.

Delta Volts Measurement
Accuracy, Average Acquisi­tion Mode

P2100 passive probe

Bandwidth DC to 100 MHz DC to 7 MHz

Attenuation ratio 10:1 1:1

Compensation Range 18 pf-35 pf

Input resistance

Input capacitance 14.5 pf-17.5 pf 80 pf-110 pf

Maximum input voltage

Delta volts between any two averages of ≥16

3% of reading + 0.05 div
waveforms acquired under same setup and ambient
conditions

10X position 1X position

All oscilloscopes with 1 M Ω input

10 M Ω ± 2% 1MΩ ± 2%

300 V
300 V
100 V

CAT I or 300 V DC CAT I

RMS

CATIIor300VDCCATII

RMS

CAT III or 100 V DC CAT III

RMS

150 V

150 V

100 V

RMS
RMS
RMS

Horizontal

Sample Rate Range 50 S/s to 1 GS/s

Waveform Interpolation (sin x)/x

CAT I or 150 V DC CAT I
CATIIor150VDCCATII
CAT III or 100 V DC CAT III

TDS 200 Series Digital Oscilloscope Service Manual

1--3

Specifications

ggy,g

ggg

ggy

,

Table 1--1: Specifications (cont.)

Horizontal

Record Length 2500 samples for each channel

SEC/DIV Range 5 ns/div to 5 s/div, in a 1, 2.5, 5 sequence

n Sample Rate and Delay
Time Accuracy

Delta Time Measurement Conditions Accuracy
Accuracy (Full Bandwidth)

Position Range 5ns/divto10ns/div

Trigger

±100 ppm over any ≥1 ms time interval

Single-shot, Sample mode

>16 averages ±(1 sample interval + 100 ppm × reading +

Sample interval = s/div ÷ 250

25 ns/div to 100 s/div 250 s/divto5s/div

(--4 div × s/div) to 20 ms (--4 div × s/div) to 50 ms (--4 div × s/div) to 50 s

±(1 sample interval + 100 ppm × reading +

0.6 ns)

0.4 ns)

n Trigger Sensitivity, Edge
Trigger Type

Trigger Sensitivity, Edge
Trigger Type, typical

Trigger Level Range Source Range

Trigger Level Accuracy, Accuracies are for signals having rise and fall times ≥20 ns
typical

Coupling Sensitivity

DC

Coupling Sensitivity

AC Same as DC at 50 MHz and above

NOISE REJ Reduces DC-coupled trigger sensitivity by 2 times for > 10 mV/div to 5 V/div

HF REJ Same as DC-coupled limit from DC to 7 kHz, attenuates signals above

LF REJ Same as the DC-coupled limits for frequencies above 300 kHz, attenuates

Internal ±8 divisions from center of screen

TDS 210 and TDS 220

EXT ±1.6 V

EXT/5 ±8V

Source

Internal

CH 1, CH 2,
CH 3 & CH 4

TDS 210 and TDS 220

EXT 100 mV from DC to 10 MHz*,

EXT/5 500 mV from DC to 10 MHz*,

80 kHz

signals below 300 kHz

Accuracy

±0.2 div × volts/div within ±4 divisions from center screen

1 div from DC to 10 MHz*,

1.5 div from 10 MHz* to Full

150 mV from 10 MHz* to Full

750 mV from 10 MHz* to Full

1--4

TDS 200 Series Digital Oscilloscope Service Manual

Table 1--1: Specifications (cont.)

y

,

Trigger

TDS 210 and TDS 220

EXT ±(6% of setting + 40 mV)

EXT/5 ±(6% of setting + 200 mV)

* Bandwidth is not valid for the P2100 probe when the switch is set to 1X.

SET LEVEL TO 50%,
typical

Default Settings, Video
Trigger

Sensitivity, Video Composite video signal
Trigger Type, typical

Signal Formats and Field
Rates, Video Trigger Type

Holdoff Range 500 ns to 10 s

Operates with input signals ≥50 Hz

Trigger mode is Auto and Coupling is AC

Source

Internal Pk-pk amplitude of 2 divisions

TDS 210 and TDS 220

EXT 400 mV

EXT/5 2V

Supports NTSC, PAL, and SECAM broadcast systems for any field or any line

Range

Specifications

Measurements

Cursors

Automated Measurements Cycle RMS, Mean, Pk -- Pk, Period, Frequency

Voltage difference between cursors (∆V)
Time difference between cursors (∆T)
Reciprocal of ∆T in Hertz (1/∆T)

Table 1--2: General specifications

Display

Display Type 5.9 in (152 mm) diagonal liquid crystal

Display Resolution 320 horizontal by 240 vertical pixels

Display Contrast Adjustable, temperature compensated

Backlight Intensity, typical 60 cd/m

Probe compensator output

Output Voltage, typical

Frequency, typical 1 kHz

2

5Vinto≥1MΩ load

TDS 200 Series Digital Oscilloscope Service Manual

1--5

Specifications

p

y

Table 1--2: General specifications (cont.)

Power Source

Source Voltage

100 -- 120 VAC

10% from 45 Hz through 440 Hz, CAT II

RMS

120 -- 250 VAC

10% from 45 Hz through 66 Hz, CAT II

RMS

Power Consumption TDS 210 and TDS 220 TDS 224

Less than 20 W Less than 25 W

Fuse 1 A, T rating, 250 V

Environmental

Temperature Operating 0° Cto+50° C

Nonoperating -- 2 0 ° Cto+60° C

Cooling Method Convection

Humidity +40° C or below ≤90% relative humidity

+41° Cto+50° C ≤60% relative humidity

Altitude Operating 3,000 m

Nonoperating 15,000 m

Random Vibration Operating 0.31 g

from 5 Hz to 500 Hz, 10 minutes on each

RMS

axis

Nonoperating 2.46 g

from 5 Hz to 500 Hz, 10 minutes on each

RMS

axis

Mechanical Shock Operating 50 g, 11 ms, half sine

Mechanical

Size Height 151.4 mm (5.96 in.)

Width 304.8 mm (12 in.)

Depth 120.7 mm (4.75 in.)

Weight (approximate) When packaged for domestic shipment 3.6 kg (8.0 lbs)

1--6

TDS 200 Series Digital Oscilloscope Service Manual

Table 1--2: General specifications (cont.)

Certifications and compliances

Specifications

EC Declaration of
Conformity

(TDS 210, TDS 220 &
TDS 224)

(TDS 210, TDS 220,
TDS 224, P2100)

(P2100)

Certifications

(TDS 210, TDS 220,
TDS 224)

(P2100)

CSA Certified Power Cords CSA Certification includes the products and power cords appropriate for use in the North America power

Pollution Degree 2 Do not operate in environments where conductive pollutants may be present.

Overvoltage Category

Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility*; meets the requirements of FCC
Code of Federal Regulations, 47 CFR, Part 15, Subpart B, Class A:

CISPR 11 (Class A): Electromagnetic radiated and conducted emissions
EN 50082-1 European Community Requirements:

IEC 61000-4-2 electrostatic discharge
IEC 61000-4-3 radiated susceptibility**
IEC 61000-4-4 power line fast transients
IEC 61000-4-5 power line surge immunity
IEC 61000-4-6 conducted immunity to RF fields
IEC 61000-4-11 voltage dips, interrupts and variations

AS/NZS 2064, Australian emissions standard for Industrial, Scientific, and Medical Equipment

Low Voltage Directive 73/23/EEC as amended by 93/68/EED:

EN61010-1/A2:1995 Safety requirements for electrical equipment for measurement control, and

laboratory use

EN 61010-2-031:1994 Particular requirements for hand-held probe assemblies for electrical

measurement and test

CAN/CSA C22.2 No. 1010.1-92
UL3111-1, First Edition

IEC61010-1/A2
IEC61010-2-031

network. All other power cords supplied are approved for the country of use.

Category: Examples of Products in this Category:

CAT III Distribution-level mains, fixed installation

CAT II Local-level mains, appliances, portable equipment

CAT I Signal levels in special equipment or parts of equipment, telecommunications,

electronics

* Instrument tested with shielded cables.

** Meets Performance Criterion A with allowed degradation of up to 5 major divisions of trace noise increase from 80 MHz to

200 MHz and up to 2 divisions of trace noise increase over the range of 200 MHz to 1000 MHz under a 3 V/m RF field. Ambient RF
fields may induce triggering when trigger threshold is offset less than 2.5 major divisions from ground reference.

Adjustment interval

The recommended adjustment interval is one year

TDS 200 Series Digital Oscilloscope Service Manual

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Specifications

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TDS 200 Series Digital Oscilloscope Service Manual

Operating Information

TDS 200-Series Digital Oscilloscopes are two or four channel oscilloscopes in
small, lightweight, benchtop packages that you can use to take ground-referenced
measurements.

In addition to the list of general features, this chapter covers the following topics:

H How to install your product

H How to add extended functions

H How to perform a brief functional check

H How to compensate probes

H How to use the self calibration routine

H How to match your probe attenuation factor

For more detailed information about instrument operation, refer to your user
manual.

TDS 200 Series Digital Oscilloscope Service Manual

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Operating Information

General Features

H 100 MHz (TDS 220 and TDS 224) or 60 MHz (TDS 210) bandwidth with

selectable 20 MHz bandwidth limit

H 1 GS/s sample rate and 2,500 point record length for each channel

H Cursors with readout

H Five automated measurements

H High-resolution, high-contrast LCD display with temperature compensation

and replaceable backlight

H Setup and waveform storage

H Autoset for quick setup

H Waveform averaging and peak detection

H Digital real-time oscilloscope (at least ten-times over sampling)

H Dual time base

H Video trigger capability

H RS-232, GPIB, and Centronics communication ports easily added with

optional extension modules

H Variable persistence display

H User interface available in ten user selectable languages

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TDS 200 Series Digital Oscilloscope Service Manual

Installation

Operating Information

Power Cord

Use only power cords designed for your oscilloscope. Use a power source that
delivers 85 to 275 VAC

,47to63Hz.Refertopage10--9foralistof

RMS

available power cords.

Use the power cord notch to help route the cord to the rear of the instrument and
avoid inadvertently disconnecting the power source.

Power cord

notch

Securing cable

Figure 2-1: Routing the power cord and security cable

Security Loop

Use the built-in cable channels to secure both your instrument and extension
module to your location.

TDS 200 Series Digital Oscilloscope Service Manual

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Operating Information

Extension Modules

You can increase the feature set of your oscilloscope by inserting an extension
module. Refer to page 10--9 for information about the available modules.
Figure 2-2 shows the proper way to install a module without bending the
connecting pins.

CAUTION. Electrostatic discharge (ESD) can damage components in the
extension module and the oscilloscope. Do not operate your instrument with the
extension module connector exposed.

1

2

Figure 2-2: Installing an extension module

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TDS 200 Series Digital Oscilloscope Service Manual

Functional Check

Operating Information

Perform this quick functional check to verify that your instrument is operating
correctly.

ON/OFF

button

PASSED

PROBE COMP

1. Turn on the instrument.

Wait until the display shows that all self tests passed. Push the SAVE/RECALL
button, select Setups in the top menu box and push the Recall Factory menu
box. The default Probe menu attenuation setting is 10X.

2. Set the switch to 10X on the P2100 probe and connect the oscilloscope probe to

channel 1. To do this, align the slot in the probe connector with the key on the
CH 1 BNC, push to connect, and twist to the right to lock the probe in place.

Attach the probe tip and reference lead to the PROBE COMP connectors.

CH 1

3. Push the AUTOSET button. Within a few seconds, you should see a square

wave in the display (approximately 5 V at 1 kHz peak-to-peak).

Push the CH 1 MENU button twice to turn off channel 1, push the CH 2 MENU
button to turn on channel 2, repeat steps 2 and 3. For TDS 224, repeat for CH 3
and CH 4.

TDS 200 Series Digital Oscilloscope Service Manual

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Operating Information

A

Probe Compensation

Perform this adjustment to match your probe to the input channel. This should be
done whenever you attach a probe for the first time to any input channel.

PROBE

COMP

Overcompensated

Undercompensated

Compensated correctly

UTOSE

T button

CH 1

1. Set the Probe menu attenuation to 10X. Set the switch to 10X on the P2100

probe and connect the oscilloscope probe to channel 1. Attach the probe tip and
reference lead to the PROBE COMP connectors and then press AUTOSET.

If using the probe hook-tip, ensure a proper connection by firmly twisting the
tip onto the probe.

2. Check the shape of the displayed waveform.

3. If necessary, adjust your probe.

Repeat as necessary.

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TDS 200 Series Digital Oscilloscope Service Manual

Self Calibration

Probe Safety

Operating Information

The self calibration routine lets you quickly optimize the oscilloscope signal path
for maximum measurement accuracy. You can run the routine at anytime but you
should always run the routine if the ambient temperature changes by 5_ Cor
more.

To compensate the signal path, disconnect any probes or cables from the channel
input connectors. Then, press the UTILITY button and select Do Self Cal to
confirm that you are ready to proceed.

A guard around the probe body provides a finger barrier for protection from
electric shock.

WARNING. To avoid electric shock when using the probe, keep fingers behind the
guard on the probe body.

To avoid electric shock while using the probe, do not touch metallic portions of
the probe head while it is connected to a voltage source.

Connect the probe to the instrument and connect the ground terminal to ground
before you take any measurements.

Probe Attenuation Setting

Probes are available with various attenuation factors which affect the vertical
scale readout of the oscilloscope.

To change (or check) the probe attenuation setting, press the VERTICAL MENU
button (of the channel you’re using) and then press the menu selection next to
Probe until the correct setting is displayed.

This setting remains in effect until changed again.

Finger guard

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Operating Information

NOTE. The default Probe menu attenuation setting is 10X when the oscilloscope
is shipped.

Be sure that the Attenuation switch on the P2100 probe is set to match the Probe
menu selection in the oscilloscope. The probe switch settings are 1X and 10X.

Attenuation switch

NOTE. When the Attenuation switch is set to 1X, the P2100 probe limits the
bandwidth of the oscilloscope to 7 MHz. To use the full bandwidth of the
oscilloscope, be sure to set the switch to 10X.

Factory Setup

The table below lists the state of the instrument after you select Recall Factory
from the SAVE/RECALL menu.

Tab le 2 - -1: Factory setup settings

Control Setting

Acquire mode Sample

Acquire # of averages 16

Channel selection Channel 1 on

Cursor H Bar position --3.2 divisions from the center

Cursor V Bar position --2 divisions from the center

Cursor function Off

Cursor time units Seconds

Delayed time base time/div

Delay time, delayed runs after main

Display format YT

Display graticule type Full

Display contrast 50%

Display style Vectors

Display accumulate time 500 ms

Edge trigger coupling DC

50 s/div

50 s

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TDS 200 Series Digital Oscilloscope Service Manual