Tektronix P7330 Manuale utente

Service Manual

P7330 3.5 GHz

Differential Probe

071-1057-00

*P071105700*

071105700

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

are protected by United States copyright laws and international treaty provisions.

Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the

Rights in Technical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the

Commercial Computer Software – Restricted Rights clause at FAR 52.227-19, as applicable.

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, TEK, TekConnect, and KlipChip are registered trademarks of Tektronix, Inc.

P7330 3.5 GHz Differential Probe Service Manual i

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to

this product or any products connected to it. To avoid potential hazards, use this

product only as specified.

Only qualified personnel should perform service procedures.

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.

While using this product, you may need to access other parts of the system. Read

the General Safety Summary in other system manuals for warnings and cautions

related to operating the system.

Connect and Disconnect Properly. Do not connect or disconnect probes or test

leads while they are connected to a voltage source.

Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings

and markings on the product. Consult the product manual for further ratings

information before making connections to the product.

Do not apply a potential to any terminal, including the common terminal, that

exceeds the maximum rating of that terminal.

Do Not Operate Without Covers. Do not operate this product with covers or panels

removed.

Do Not Operate With SuspectedFailures. If you suspect there is damage to this

product, have it inspected by qualified service personnel.

Do Not Operate in Wet/DampConditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Provide Proper Ventilation. Refer to the manual’s installation instructions for

details on installing the product so it has proper ventilation.

To Avoid Fire or

Personal Injury

General Safety Summary

ii P7330 3.5 GHz Differential Probe Service Manual

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:

CAUTION

Refer to Manual WARNING

High Voltage Double

Insulated ProtectiveGround

(Earth) Terminal Not suitable for

connectionto

thepublic telecom-

municationsnetwork

Symbols and Terms

P7330 3.5 GHz Differential Probe Service Manual iii

Preface

This is the service manual for the P7330 3.5 GHz Differential Probe. Read this

preface to learn how this manual is structured and where you can find other

information related to servicing this product.

Manual Structure

This manual contains three sections – Description, Performance Verification,

and Adjustment Procedures, and is intended to be used by qualified service

personnel. Replaceable parts are limited to accessories and adapters, and are

described in the Instruction Manual that is shipped with the probe.

Be sure to read the introductions to all procedures. These introductions provide

important information needed to do the service correctly, safely, and efficiently.

Related Documentation

The probe is shipped with the following manual:

P7330 3.5 GHz Differential Probe Instruction Manual. Tektronix part

number 071-0758-XX.

Preface

iv P7330 3.5 GHz Differential Probe Service Manual

Contacting Tektronix

Phone 1-800-833-9200*

Address Tektronix, Inc.

Department or name (if known)

14200 SW Karl Braun Drive

P.O. Box 500

Beaverton,OR97077

USA

Web site www.tektronix.com

Sales support 1-800-833-9200,selectoption1*

Servicesupport 1-800-833-9200,selectoption 2*

Technical support Email:[email protected]

1-800-833-9200,select option 3*

6:00 a.m. – 5:00 p.m. Pacific time

* 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.

P7330 3.5 GHz Differential Probe Service Manual 1

Description

This document describes the Performance Verification and Adjustment Proce-

dures for the P7330 Probe. There are no user-replaceable parts inside the probe.

If the probe fails the performance verification procedure, and adjusting the probe

cannot compensate for the failure, contact your Tektronix service center.

Performance Verification

Use the performance verification procedures to verify the warranted specifica-

tions of the P7330 probe. The recommended calibration interval is one year. No

software is required to complete a performance verification of the probe.

The performance verification procedures check the following specifications:

Output zero

DC attenuation accuracy

Rise time

Adjustments

The P7330 probe has two electronically-adjusted controls that do not need

adjusting unless a performance verification yields a specification that is out of

tolerance.

If you are making adjustments to the probe, you need the TekConnect Adjust-

ment Software for the P7330 Probe. Refer to Equipment Setup in the Adjustment

Procedures for instructions on finding and loading the adjustment software on

your instrument.

The adjustment procedures describe the following adjustments for the probe:

Offset zero

DC CMRR

Offset gain

Description

2P7330 3.5 GHz Differential Probe Service Manual

Equipment Required

Refer to Table 1 for the equipment required to perform the service procedures.

Table 1: Equipment required for performance verification and adjustment procedures

Itemdescription Performancerequirement Recommendedexample

TekConnect adjustmentsoftware1P7330 Probe OptionalApplications forWindows-Based

OscilloscopesCD

SamplingOscilloscope ≥12.5GHz bandwidth TektronixTDS8000

Samplinghead, with extension cable ≥12.5 GHzbandwidth Tektronix 80E0X with 012-1568-00 cable

Oscilloscope TekConnect Interface Tektronix TDS7404

TekConnect calibrationadapter TekConnectInterface 067-0422-00

CalibrationStep Generator 250 mV step, ≤30 ps rise time 067-1338-0X

ProbePositioner Three-axisadjustable TektronixPPM203B

ProbeCalibration Fixture See page 5 067-0419-00

Adapter TekConnect-to-SMA TCA-SMA

DC Power Supply 1 VDC at 1 mA Tektronix PS280

DMM (2) with leads 0.05% accuracy, 0.1 mV resolution Fluke 87 or equivalent

FeedthroughTermination 50

±0.05

011-0129-00

BNC-to-BNCcoaxial cable 50

coaxial cable 012-0057-01

Coaxialcable Male-to-MaleSMA 012-0649-00

Adapter SMAMale-to-Male 015-1011-00

Adapter SMAFemale-to-Female 015-1012-00

Adapter SMAMale-to-BNC Female 015-0554-00

Adapter BNCFemale-to-Dual Banana 103-0090-00

Adapter Y-lead adapter 196-3468-00

Adapter Squarepin 016-1884-00

Adapters(2) KlipChip adapter 206-0364-00

SMAtorque wrench 5/16-in, 7 in-lb.

SMAadapter wrench 7/32-in

1Required for adjustment procedures only

Special Adapters Required

Some of the adapters listed in Table 1 are custom-made and available only from

Tektronix. The adapters are described on the following pages.

Description

P7330 3.5 GHz Differential Probe Service Manual 3

The TekConnect-to-SMA Adapter, Tektronix part number TCA-SMA, allows

signals from an SMA cable or probe to be connected to a TekConnect input.

See Figure 1. Connect and disconnect the adapter the same way as you do the

P7330 Probe.

Figure 1: TekConnect-to-SMA adapter

The TekConnect Interface Calibration Adapter, Tektronix part number

067-0422-00, connects between the host instrument and the probe under test, and

provides connectors for probe signal and offset voltage measurements.

See Figure 2.

Figure 2: TekConnect Interface Calibration Adapter

When the adapter is connected to the oscilloscope, the adapter is identified as a

valid calibration device. However, additional power supplies necessary to power

the probe are not enabled until a TekConnect probe is connected to the adapter

and identified by the oscilloscope. When a probe is detected through the adapter,

the Volts/div readout on the oscilloscope displays ##.

TekConnect-to-SMA

Adapter

TekConnect Interface

Calibration Adapter

Description

4P7330 3.5 GHz Differential Probe Service Manual

Refer to Table 2 for features of the calibration adapter.

Table 2: TekConnect Interface Calibration Adapter features

Feature Description

Latch button

Latch

Latch button. The spring-loaded latch mechanically retains the adapter to the oscilloscope. To

release the adapter, grasp the adapter housing, depress the latch button, and pull the adapter

straight out of the oscilloscope.

Offset

switch

GND

VAR

Offset output select switch. The offset output switch selects between ground and the offset

voltage level from the oscilloscope.

Leave the switch in the ground position for the performance verification procedures.

Move the switch to the variable position for the adjustment procedures.

Offset

voltage

output

Offset voltage. The offset voltage of the probe is accessed through the BNC connector.

Measure the offset voltage using a DVM, BNC coaxial cable, and BNC-to-dual-banana jack.

Signal

out

Signal out. The SMA connector on the rear of the box allows for direct monitoring of the probe

signal.

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