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
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 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:
H
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*
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:
H
Output zero
H
DC attenuation accuracy
H
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:
H
Offset zero
H
DC CMRR
H
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
W
±0.05
W
011-0129-00
BNC-to-BNCcoaxial cable 50
W
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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