Instructions
013-0278-XX
Video Display Clamp
070-8762-01
www.tektronix.com
*P070876201*
070876201
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or
suppliers, and are prot ected by national copyright laws and international treaty provisions.
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 a nd price c hange privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
H In North America, call 1-800-833-9200.
H Worldwide, visit www.tektronix.com to find contacts in your area.
Warranty 5
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of three
(3) months from the date of shipment. If any such product proves defective during the warranty period, Tektronix,
at its option, either will repair the defective product without charge for part s and labor, or will provide a
replacement in exchange for the defective product. Parts, modules and replacement products used by Tektronix for
warranty work may be new or reconditioned to like new performance. All replaced parts, m odules and products
become the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of the respective warranty period and make suitable arrangements for the performance of service. Customer shall
be responsible for packa ging and shipping the defective product to the service center designated by Tektronix,
with shipping cha rges prepaid. Tektronix shall pay for the return of the product to Customer i f 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 shal l not appl y to any defect , failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligate d to furnish service under this warranty a) to repair dam age
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 PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A P ARTICULAR 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 OR 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
General Safety Summary iii...................................
Environmental Considerations v...............................
The Video Display Clamp 1...................................
Product Description 1..............................................
Features 2........................................................
Using the Video Display Clamp 2.....................................
Specifications 5...................................................
Performance Verification 7...................................
General Instructions 7..............................................
Conventions 7.................................................
Equipment Required 7..........................................
Procedures 8......................................................
Back Porch Correction Check 8...................................
Gain Error Check 11.............................................
Crosstalk and Timing Checks 13...................................
Bandwidth Check 16............................................
60 Hz Rejection Check 17........................................
Maintenance 21..............................................
Service Information 21..............................................
Replacing the Contact Pins 21.....................................
013-0278-XX Video Display Clamp
i
Table of Contents
List of Figures
Figure 1: The video display clamp 1............................
Figure 2: Video waveform disrupted by 60 Hz hum 2.............
Figure 3: Viewing a video signal directly with the video display
clamp 3................................................
Figure 4: Monitoring a video signal with the video display clamp 3..
Figure 5: Probing circuits with the video display clamp 4..........
Figure 6: Back porch test setup 9..............................
Figure 7: Back porch correction check (negative) 10...............
Figure 8: Back porch correction test (positive) 11..................
Figure 9: Gain error test setup 12...............................
Figure 10: Gain check 13......................................
Figure 11: Crosstalk test setup 14...............................
Figure 12: Measuring interference 15............................
Figure 13: Measuring timing intervals 15........................
Figure 14: Bandwidth test setup 16..............................
Figure 15: 60 Hz rejection test setup 18..........................
Figure 16: 60 Hz rejection check (negative) 19....................
Figure 17: 60 Hz rejection check (positive) 19.....................
Figure 18: Replacing the contact pins 21.........................
List of Tables
ii
Table 1: Warranted Characteristics — Signal Pass Through
(Insertion Characteristics) 5...............................
Table 2: Warranted Characteristics — Signal Input Impedance
(Return Characteristics) 5....................................
Table 3: Warranted Characteristics — Video Display Clamp 5.....
T able 4: Warranted Characteristics — Environmental 6..........
Table 5: Typical Characteristics — Video Display Clamp 6........
T able 6: Nominal Traits — Mechanical 6.......................
Table 7: Test Equipment 7...................................
013-0278-XX Video Display Clamp
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.
While using this product, you may need to access other parts of a larger system.
Read the safety sections of the other component manuals for warnings and
cautions related to operating the system.
ToAvoidFireor
Personal Injury
Connect and Disconnect Properly. Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Ground the Product. This product is indirectly grounded through the grounding
conductor of the mainframe 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.
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.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
013-0278-XX Video Display Clamp
iii
General Safety Summary
Terms in this Manual
Symbols and Terms
on the Product
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.
These terms may appear on the product:
H DANGER indicates an injury hazard immediately accessible as you read the
marking.
H WARNING indicates an injury hazard not immediately accessible as you
read the marking.
H CAUTION indicates a hazard to property including the product.
The following symbol(s) may appear on the product:
CAUTION
Refer to Manual
iv
013-0278-XX Video Display Clamp
Environmental Considerations
This section provides information about the environmental impact of the
product.
Product End-of-Life
Handling
Restriction of Hazardous
Substances
Observe the following guidelines when recycling an instrument or component:
Equipment Recycling. Production of this equipment required the extraction and
use of natural resources. The equipment may contain substances that could be
harmful to the environment or human health if improperly handled at the
product’s end of life. In order to avoid release of such substances into the
environment and to reduce the use of natural resources, we encourage you to
recycle this product in an appropriate system that will ensure that most of the
materials are reused or recycled appropriately.
The symbol shown to the left indicates that this product
complies with the European Union’s requirements
according to Directive 2002/96/EC on waste electrical and
electronic equipment (WEEE). For information about
recycling options, check the Support/Service section of the
Tektronix Web site (www.tektronix.com).
This product has been classified as Monitoring and Control equipment, and is
outside the scope of the 2002/95/EC RoHS Directive.
013-0278-XX Video Display Clamp
v
Environmental Considerations
vi
013-0278-XX Video Display Clamp
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