Tektronix P7330 Service Manual
Service Manual
P7330 3.5 GHz
Differential Probe
071-1057-00
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
*P071105700*
071105700
Copyright © Tektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and
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 T echnical 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 F AR 52.227-19, as applicable.
T ektronix 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.
T ektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX, TEK, T ekConnect, and KlipChip are registered trademarks of Tektronix, Inc.
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.
To Avoid Fire or
Personal Injury
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 Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
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.
P7330 3.5 GHz Differential Probe Service Manual
i
General Safety Summary
Symbols and Terms
T erms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
T erms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
CAUTION
Refer to Manual
WARNING
High Voltage
Double
Insulated
Protective Ground
(Earth) Terminal
Not suitable for
connection to
the public telecom-
munications network
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P7330 3.5 GHz Differential Probe Service Manual
Preface
Manual Structure
Related Documentation
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.
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.
The probe is shipped with the following manual:
H
P7330 3.5 GHz Differential Probe Instruction Manual. Tektronix part
number 071-0758-XX.
P7330 3.5 GHz Differential Probe Service Manual
iii
Preface
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, 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: support@tektronix.com
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.
iv
P7330 3.5 GHz Differential Probe Service Manual
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 specifications 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:
H
H
H
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 Adjustment 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:
H
Offset zero
H
DC CMRR
H
Offset gain
P7330 3.5 GHz Differential Probe Service Manual
1
Description
Equipment Required
Refer to Table 1 for the equipment required to perform the service procedures.
T able 1: Equipment required for performance verification and adjustment procedures
Item description Performance requirement Recommended example
T ekConnect adjustment software
Sampling Oscilloscope ≥12.5 GHz bandwidth T ektronix TDS8000
Sampling head, with extension cable ≥12.5 GHz bandwidth Tektronix 80E0X with 012-1568-00 cable
Oscilloscope T ekConnect Interface T ektronix TDS7404
T ekConnect calibration adapter T ekConnect Interface 067-0422-00
Calibration Step Generator 250 mV step, ≤30ps rise time 067-1338-0X
Probe Positioner Three-axis adjustable Tektronix PPM203B
Probe Calibration Fixture See page 5 067-0419-00
Adapter TekConnect-to-SMA TCA-SMA
DC Power Supply 1 VDC at 1 mA T ektronix PS280
DMM (2) with leads 0.05% accuracy, 0.1mV resolution Fluke 87 or equivalent
Feedthrough T ermination 50W ±0.05
BNC-to-BNC coaxial cable 50W coaxial cable 012-0057-01
Coaxial cable Male-to-Male SMA 012-0649-00
Adapter SMA Male-to-Male 015-101 1-00
Adapter SMA Female-to-Female 015-1012-00
Adapter SMA Male-to-BNC Female 015-0554-00
Adapter BNC Female-to-Dual Banana 103-0090-00
Adapter Y -lead adapter 196-3468-00
Adapter Square pin 016-1884-00
Adapters (2) KlipChip adapter 206-0364-00
SMA torque wrench 5/16-in, 7 in-lb.
SMA adapter wrench 7/32-in
1
Required for adjustment procedures only
1
P7330 Probe Optional Applications for Windows-Based
Oscilloscopes CD
W
011-0129-00
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.
2
P7330 3.5 GHz Differential Probe Service Manual
Description
TekConnect-to-SMA
Adapter
TekConnect Interface
Calibration Adapter
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 ##.
P7330 3.5 GHz Differential Probe Service Manual
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Description
Refer to Table 2 for features of the calibration adapter.
T able 2: TekConnect Interface Calibration Adapter features
Feature Description
Offset
switch
GND
Latch button
Latch
VAR
Offset
voltage
output
Signal
out
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 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. 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. The SMA connector on the rear of the box allows for direct monitoring of the probe
signal.
4
P7330 3.5 GHz Differential Probe Service Manual
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