Tektronix P6243 Service Manual

ZZZ

P6243 1 GHz 10X Active Probe

Service Manual

*P070940904*

070-9409-04

ZZZ

P6243 1 GHz 10X Active Probe

Service Manual

www.tektronix.com

070-9409-04

Tektronix products are covered by U.S. and foreign patents, issued and pendin g. Information in this publication supersedes that in all previously published material. Speciﬁcations and p

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

TEKPROBE is a registered tr

ademark of Tektronix, Inc.

served. Licensed software products are

rice change privileges reserved.

Contacting Tektronix

Tektronix, Inc. 14200 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA

For pro duct information, sales, service, and technical support:

In North Am erica, call 1-800-833-9200. Worldwide, visit www.tektronix.com to ﬁnd contacts in your area.

Warranty

Tektronix warrants that this produ workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this w the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective Tektronix for warranty work may be new or reconditioned to like new performance. A ll replaced parts, modules and

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, with shipping charges prepaid. 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 t he 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 PRODUCT I TEKTRONIX AND ITS VENDORS D ISCLAIM ANY IMPLIED WARRANTIES OF MERCHAN RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AN BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADV

[W2 – 15AUG04]

N LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED.

TABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’

D E XCLUSIV E REMEDY PROVIDED TO THE CUSTOMER FOR

E FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL

ANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

ct will be free from defects in materials and

arranty period, Tektronix, at its option, either will repair

product. Parts, modules and replacement products used by

products become the property of Tektronix.

Table of Contents

General Safety Summary iii............................

Specifications 1......................................

Operating Basics 9...................................

Maximum Non-destructive Input Voltage 9.................

Input Linear Dynamic Range 9..........................

Theory of Operation 10................................

Probe Head and Cable Assembly 10.......................

Compensation Box 11...................................

Performance Verification 12............................

Equipment Required 12.................................

Equipment Setup 12....................................

Output Zero 13........................................

DC Attenuation Accuracy 13.............................

Maintenance 16.......................................

Replacing TEKPROBE™ Interface Pins 16..................

Removing and Replacing the Compensation Box Covers 17....

Removing and Replacing the TEKPROBE™ Interface Collar 19.

Inspection and Cleaning 20..............................

Replacement Parts 20...................................

Preparation for Shipment 20..............................

Replaceable Parts 21...................................

P6243 Service Manual

Table of Contents

List of Figures

Figure 1: Typical Frequency Response 3...................

Figure 2: Typical Linearity Error vs. V

Figure 3: Typical Input Impedance vs. Frequency 5..........

Figure 4: Typical Non-Destructive Peak Voltage Derating vs.

Frequency 6.......................................

Figure 5: P6243 Simplified Schematic Diagram 10...........

Figure 6: TEKPROBE Interface 11........................

Figure 7: P6243 DC Attenuation Accuracy Setup 14..........

Figure 8: Replacing TEKPROBE Interface Pins 16...........

Figure 9: Removing the Compensation Box Covers 17.........

Figure 10: Replacing the Compensation Box Cover 18.........

Figure 11: Replacing the TEKPROBE Collar 19..............

Figure 12: P6243 Replaceable Parts 22.....................

Figure 13: P6243 Standard Accessories 24..................

Figure 14: P6243 Optional Accessories 26..................

List of Tables

4.................

Table 1: Warranted Electrical Specifications 1..............

Table 2: Typical Electrical Characteristics 2................

Table 3: Physical Characteristics 7........................

Table 4: Environmental Characteristics 7..................

Table 5: Equipment Re quired for Performance Verification 12..

P6243 Service Manual

General Safety Sum mary

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

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.

Do Not Operate Without Covers. To avoid electric shock or fire hazard,

do not operate this product with covers or panels removed.

Do Not Operate in Wet/Damp Conditions. To avoid elec tric shock, do not

operate this product in wet or damp conditions.

Do Not Operate in an Explosive Atmosphere. To avoid inj ury or fire

hazard, do not operate this product in an explosive atmosphere.

Product Damage Precautions

Use Proper Power Source. Do not operate this product from a power

source that applies more than the voltage specified.

Do Not Operate With Suspected Failures. If you suspect there is damage

to this product, have it inspected by qualified service personnel.

Do Not Immerse in Liquids. Clean t he probe using only a damp cloth.

The cloth must be dampened with either isopropyl alcohol or a mild detergent and water solution. Do not use any other chemicals or abrasives to clean the probe.

P6243 Service Manual

iii

General Safety Summary

Safety Terms and Symbols

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

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

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

Terms on the Product. These te rms 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. These symbols may appear on the product:

DANGER

High Voltage

Protective Ground

(Earth) Terminal

ATTENTION

Refer to Manual

P6243 Service Manual

Double

Insulated

Specifications

The warranted specifications in Table 1 appl y to a P6243 Active Probe when the probe and the host instrument are allowed to warm up for 20 minutes before measurements are taken. The warranted specifications that appear in boldface type are specifications checked in the Performance Verification section of the service manual.

The specifications in Tables 2 through NO TAG are provided as general information for your convenience.

CAUTION. Do not apply voltages beyond the non-destructive input voltage range to the probe. Damage to the probe or circuit under test may result. Refer to Figure 4 on page 6.

Table 1: Warranted Electrical Specifications

Analog Bandwidth (probe only) at +20 °Cto+30°C (+68 °Fto+86°F)

DC Attenuation Accuracy

(probe only) at +20 °Cto+30°C (+68 °Fto+86°F)

Output Zero

at +20 °Cto+30°C (+68 °Fto+86°F)

Rise Time (probe only) at +20 °Cto+30°C (+68 °Fto+86°F)

P6243 Service Manual

>1.0 GHz

10:1 ±2%

±10 mV or less at output of probe

±100 mV or less displayed on screen with

TEKPROBE interface

<350 ps

Specifications

Table 2: Typical Electrical Characteristics

Frequency Response (probe only) SeeFigure1

Linear Input Dynamic Range -- 8 V t o + 8 V .

(Equivalent to -- 0.8 V to + 0.8 V at the output of the probe)

Linearity  4% or less of dynamic range

Linearity Error vs. V

Input Resistance

SeeFigure2

1MΩ at DC. (See Figure 3)

Input Capacitance <1.0 pF

Non-Destructive Input Voltage Range

-- 15 V to + 15 V (DC + peak AC) (See Figure 4 on page 6)

DC Offset Drift

100 V/°C or less at output of probe

1mV/°C or less displayed on screen with TEKPROBE interface

Delay Time 5.3 ns ±0.2 ns

P6243 Service Manual

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