VM700A Video Measurement Set
Option 01 (NTSC) & Option 11 (PAL)
070-8166-05
User Manual
VM700A Video Measurement Set
Option 01 (NTSC) & Option 11 (PAL)
070-8166-05
This document supports firmware version 2.09.01.
Copyright 1992, 1993 Tektronix, Inc., Beaverton, Oregon. Printed in the United States of America. All
Rights Reserved. Contents of this publication may not be reproduced in any form without the written
permission of T ektronix, Inc. Specification and price change privileges are reserved.
This instrument, in whole or in part, may be protected by one or more U.S. or foreign patents or patent
applications. Information provided upon request by T ektronix, Inc., P.O. Box 1000, Wilsonville, Oregon
97070–1000.
T ektronix and Tek and are registered trademarks of Tektronix, Inc.
IBM AT and IBM XT are registered trademarks of International Business Machines, Inc. Epson is a
registered trademark of Epson Inc. HP LaserJet, HP ThinkJet, and HP DeskJet are registered trademarks
of Hewlett–Packard, Inc. Apple LaserWriter is a registered trademark of Apple Computer, Inc. Mention
of third party products is as an example of a type of equipment that a user might employ and is not an
endorsement for that product.
WARRANTY
T ektronix warrants that this product that it manufactures and sells will be free from defects in materials
and workmanship for a period of one (1) year from the date of shipment. If any such product proves
defective during this warranty period, T ektronix, at its option either will repair the defective product
without charge for parts and labor, or will provide a replacement in exchange for the defective product.
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 T ektronix, 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 T ektronix 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. T ektronix shall not be obligated to furnish service under this warranty
a) to repair damage resulting from attempts by personnel other than T ektronix representatives to install,
repair or service the product; b) to repair damage resulting from improper use or connection to
incompatible equipment; c) 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 THIS 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 FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE
NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Contacting Tektronix
Product
Support
Service
Support
For other
information
To write usTektronix, Inc.
For application-oriented questions about a Tektronix measurement product, call toll free in North America:
1-800-833-9200
6:00 a.m. – 5:00 p.m. Pacific time
Or contact us by e-mail:
support@tek.com
For product support outside of North America, contact your
local Tektronix distributor or sales office.
Contact your local Tektronix distributor or sales office. Or visit
our web site for a listing of worldwide service locations.
http://www.tektronix.com
In North America:
1-800-833-9200)
An operator will direct your call.
P.O. Box 500
Beaverton, OR. 97077
VM700A
VM700A
PictureVectorWaveform
VIDEO
VIDEO
MEASUREMENT SET
MEASUREMENT SET
MeasureAuto
Freeze
Menu
Move
Expand
DisplayGraticule
SOURCE
ABC
HelpConfigure Function
Select Line
Intensity
Average
Average
Copy
STBY
ON
In /nvramO/Executable~Files/Video~Options
Audio–Video
Timing
Camera_Testing
Echo_Rounding
Video
Audio
Diags
Teletext
Component
Leav
Previous
Selection
Directory
e
The VM700A Video Measurement Set
EC Declaration of Conformity
We
Tektronix Holland N.V.
Marktweg 73A
8444 AB Heerenveen
The Netherlands
declare under sole responsibility that the
VM700A
meets the intent of Directive 89/336/EEC for Electromagnetic Compatibility.
Compliance was demonstrated to the following specifications as listed in the Official
Journal of the European Communities:
EN 50081-1 Emissions:
EN 55022Class B Radiated and Conducted Emissions
EN 50082-1 Immunity:
IEC 801-2Electrostatic Discharge Immunity
IEC 801-3RF Electromagnetic Field Immunity
IEC 801-4Electrical Fast Transient/Burst Immunity
High-quality shielded cables must be used to ensure compliance to the above listed
standards.
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
v
Contents
vi
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
Safety Summary
Please take a moment to review these safety precautions. They are provided for your protection and to prevent
damage to the product. This safety information applies to all operators.
This product is intended to operate from a power source that applies no more than 250 V
supply conductors or between either supply conductor and ground. A protective ground connection, through
the grounding conductor in the power cord, is essential for safe system operation.
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
manual
between the
rms
vii
Safety Summary
Grounding the Product
This product is grounded through the power cord. T o avoid electric shock, plug the power cord into a properly
wired receptacle where earth ground has been verified by a qualified service person. Do this before making
connections to the input or output terminals of the product.
Without the protective ground connection, all parts of the monitor are potential shock hazards. This includes
knobs and controls that may appear to be insulators.
Use the Proper Power Cord
Use only the power cord and connector specified for this product. Use only a power cord that is in good
condition.
Use the Proper Fuse
To avoid fire hazard, use only the fuse specified in the parts list for this product, matched by type, voltage
rating, and current rating.
Do Not Operate Without a Cabinet
T o avoid personal injury, do not operate the AM700 with its cabinet removed. When power is supplied to the
AM700 and the rear panel power switch is on, line voltage will be present in the instrument, even when the
POWER switch is set to STANDBY.
Do Not Operate in Explosive Atmospheres
T o avoid explosion, do not operate this product in an explosive atmosphere.
Do Not Service Alone
Do not perform internal service or adjustment of this product unless another person capable of rendering first
aid and resuscitation is present.
viii
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
Section 1:Introduction and Specification
Section 1:Introduction and Specification
Manual Overview
This manual describes the front panel operation of the VM700A Video Measurement Set. Those
features that generally apply across the full range of possible options are explained. For specific
information on the installed options, see the applicable option manual supplied with this manual
set. The VM700A operator’s documentation now comprises the following manuals:
VM700A Video Measurement Set Operator Manual
VM700A Programmer Reference Manual
Option 01 NTSC Measurements Operator Manual
Option 11 PAL Measurements Operator Manual
Option 1G Echo and Rounding Error Measurements Operator Manual
Option 20 Teletext Measurements Operator Manual
Option 21 Camera Measurements Operator Manual
Option 22 Video Wander Measurements User Manual
Option 30 Component Measurements Operator Manual
Option 40/41/42 Audio Measurements Operator Manual
Option 48 GPIB Interface Programmer Manual
Your manual set includes the VM700A Video Measurement Set Operator Manual, the VM700A
Programmer Reference Manual, and the applicable option manuals for your instrument.
Some additional software packages that may be of special interest to you are:
VMBKUPSoftware to assist in backing up the VM700A user-created files. These files can
VMRMGRThis software aids you in handling the graphic displays and transferring them to
VMTerminalThis useful software package assists in remote control of the VM700A via a pc.
Instrument Overview
The VM700A Video Measurement Set is a multifunction television test and measurement device
with an easy-to-use interface. The VM700A combines the functions of a waveform monitor,
vectorscope, automatic measurement set, and noise measurement set in a single instrument. Input
signals can be broadcast or generated by test equipment. The VM700A can be operated by using
its front-panel controls or by using one of the rear-panel RS-232C ports, or the GPIB port if
Option 48 is installed, to send it commands.
The VM700A can be operated as an NTSC-standard instrument (Option 01), a PAL-standard
instrument (Option 11), or as a dual-standard instrument when both options are included.
be reloaded to the same instrument or to another VM700A to generate a common
set of configuration files.
a personal computer for filing, display, or printing.
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
1-1
Section 1 - Introduction and Specification
The VM700A functions as a waveform monitor when its Waveform front-panel button is pressed.
Waveform monitor operation is described in Section 4.
The VM700A functions as a vectorscope when its Vector front-panel button is pressed. Vectorscope operation is described in Section 5.
When the Measure front-panel button is pressed, the VM700A displays a list of available
measurements. A general description of Measure mode operation is given in Section 6. Detailed
information about individual measurements is included in the VM700A Option 01 NTSC
Measurements Operator Manual and the VM700A Option 11 PAL Measurements Operator
Manual. Consult either of those manuals for more information about individual measurements.
Measurement provided with additional installed options are described in the manuals supplied for
the options.
When the Picture front-panel button is pressed, the VM700A functions as a low-resolution
picture monitor. This display is to assist you in identifying the input source for other operational
modes. Picture mode operation is described in Section 7.
When the Auto front-panel button is pressed, the VM700A cycles through the selected set of
automated measurements. A general description of Auto mode operation is given in Section 8.
Detailed information about individual auto-mode measurements is included in the VM700A
Option 01 NTSC Measurements Operator Manual and the VM700A Option 11 PAL Measurements Operator Manual. Consult either of those manuals for more information about individual
measurements.
The VM700A features a large set of diagnostics, to allow you to verify that the instrument is
operating properly, as well as to localize malfunctions if they occur. Diagnostics are described in
Section 9
The VM700A features the ability to record sequences of operations (functions) and execute them
by touching a “soft key” on the front panel. See the VM700A Programmer Reference Manual for
details on how to record, edit, and execute functions. The functions can also be called remotely
once they have been created.
The VM700A is capable of being remotely controlled. You can operate the instrument via a
computer or terminal connected through a rear-panel RS-232C port. See the VM700A Program-mer Reference Manual for information on remote programming and operation. If Option 48,
GPIB interface, is also installed, the VM700A may be operated remotely via the GPIB port. See
the VM700A Option 48 GPIB Interface Programmer Manual for information about GPIB remote
control
An added display option is available for the VM700A. Option 74 provides a display module with
a white phosphor CRT instead of the standard green phosphor when a VM700A is ordered with
the option.
1-2
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
Instrument Specifications
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T able 1-1: Physical Characteristics
CharacteristicsDescription
Section 1 - Introduction and Specification
Dimensions (WxHxD)
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Weight
19.0 inches x 8.75 inches x 21.9 inches
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(483 mm x 222 mm x 556 mm)
45 lb (20 Kg)
T able 1-2: Power Requirements
CharacteristicsDescription
Mains Voltage
90 to 132 VAC (115 VAC nominal)
180 to 250 VAC (230 VAC nominal)
Mains Frequency
Power Consumption
47 to 63 Hz
250 Watts
Fuse
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115 VAC
230 VAC
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6 A, 250 V , Slow Blow, 0.250 X 1.250
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3 A, 250 V , Slow Blow, 3AG, MSL-3
T able 1-3: Environmental Characteristics
CharacteristicsDescription
Temperature
Operating
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Non-operating (storage)
Altitude
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Operating
Non-operating
EMI
0 to 50°C ambient
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–55°C to + 75°C
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To 4,570 meters (15,000 feet). Maximum operating
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temperature decreases 1°C per 1,000 ft above 5,000 ft.
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To 15,240 meters (50,000 feet).
Meets FCC CFR Part 15, Sub-part B, Class A
T able 1-4: Remote Relay
CharacteristicsDescription
Remote Contact Closure Relay
Maximum Current50 mA
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
Contacts are not debounced.
1-3
Section 1 - Introduction and Specification
Á
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T able 1-4: Remote Relay (Cont.)
CharacteristicsDescription
Maximum Voltage30 VAC
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Control Logic
set GRL Y 1 closes the relay.
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or 30 VDC
RMS
set GRL Y 0 opens the relay.
T able 1-5: Optional Power Cords
Power PlugsDescriptionReference Standards
Standard
North American
120 V plug
15 A
Option A1
Universal Euro
220 V plug
10-16 A
Option A2
2
United Kingdom
240 V plug
6 A
Option A3
Australian
240 V plug
10 A
ANSI C73.11
NEMA 5-15-P
IEC 83
UL 198.6
CEE(7)
II, IV, VII
IEC 83
IEC 127
BS 1363
IEC 83
IEC 127
AS C112
IEC 127
1
1-4
Option A4
North American
240 V
15 A
Option A5
Switzerland
220 V plug
6 A
1
Reference Standards Abbreviations:
ANSI—American National Standards Institute
AS—Standards Association of Australia
BS—British Standards Institution
CEE—International Commission on Rules for the Approval of Electrical Equipment
IEC—International Electrotechnical Commission
NEMA—National Electrical Manufacturer’s Association
SEV—Schwetzervischer Elektrotechischer Versin
UL—Underwriters Laboratories Inc.
2
A 6 A, type C fuse is also installed inside the plug of the Option A2 power cord.
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
ANSI C73.20
NEMA 6-15-P
IEC 83
UL 198.6
SEV
IEC 127
Section 2:Installation and Operation
Section 2:Installation and Operation
Power Requirements
The VM700A operates with line frequencies from 48 Hz to 66 Hz, over two line
voltage ranges. The nominal setting of the low voltage range is 115 VAC. The
nominal setting of the high voltage range is 230 VAC.
There are two power switches on the VM700A, one on the rear panel above the
power cord receptacle, and one on the front panel. Both must be on to operate
the instrument. The rear-panel switch is the master power switch. The switch on
the front panel remotely enables the voltage supply outputs.
WARNING. Dangerous voltages are present within the Power Supply module
when the rear-panel power switch is on, regardless of the position of the
front-panel power switch. Do not operate the VM700A with any covers removed.
Refer all servicing of the instrument to a qualified service person.
Changing Line Voltage
Range and Fuse
Power Cord
The voltage range selection switch and fuse holder are located in the lower left
corner of the rear panel (see Figure 2-1). The VM700A is shipped from the
factory set for the operating voltage of the destination nation (115 VAC or
230 VAC). If the setting is not correct, it must be changed before connecting the
power cord to the power source. Simply set the voltage range selection switch
(located on the rear panel of the VM700A) to the correct position for operation.
CAUTION. When changing the line voltage selector switch you must also change
the fuse to provide proper protection for the operating voltage in use. The 3A
slow-blow fuse provides the proper protection in the 230 VAC range and the 6A
slow-blow fuse provides protection for operation in the 115 VAC range.
A detachable three-wire power cord with a three-contact plug is provided with
each instrument for connecting to both the power source and protective ground.
The protective-ground connector in the plug connects (through the protectiveground conductor) to the accessible metal parts of the instrument. For electricalshock protection, insert this plug only into a power-source outlet that has a
properly grounded protective-ground contact.
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
2-1
Section 2 - Installation and Operation
CAUTION
TO AVOID
ELECTRICAL SHOCK,
POWER CORD
PROTECTIVE GROUND
MUST BE CONNECTED
TO EARTH GROUND
FUSE
RATING
250V
6A S
3A S
FUSE
O
1
0
N
OFF
REPLACE
FUSE AS
SPECIFIED
LINE
VOLTAGE
SETTING
115V
(90 - 132V)
230V
180 - 250V)
400 VA MAX
44 - 68 HZ
Figure 2-1: Rear-panel fuse, power connector, ON/OFF switch and Line Selector
LINE SELECTOR
Calibrating the Touch
2-2
Screen
Instruments are shipped with the power cord required for the country of
destination. Available power-cord option information is given in Section 1,
Introduction and Specification, of this manual. Contact your Tektronix representative or local Tektronix field office for additional power-cord information.
The VM700A is shipped from the factory with its touch screen fully calibrated.
Although it will seldom be necessary, the touch screen can easily be recalibrated.
To calibrate the touch screen:
H
Switch off power to the VM700A at the front panel.
H
Press and hold the Configure button and switch the power back on.
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
Front Panel Operation
Section 2 - Installation and Operation
After about three seconds the VM700A displays the touch screen calibration
display. Full instructions for calibration are given on the screen. A small circle
with a dot (1 pixel) is lit in each corner, one corner at a time (top left, top right,
bottom left, bottom right). Hold your finger on the touch screen directly over the
dot until the VM700A beeps, and lights the dot in the next corner. When the
calibration is completed, the VM700A finishes the power-up sequence, then the
Waveform mode display appears.
The VM700A front panel (Figure 2-2) consists of a touch screen and a 20-button
keypad with a control knob.
VIDEO
VM700A
VM700A
PictureVectorWaveform
VIDEO
MEASUREMENT SET
MEASUREMENT SET
MeasureAuto
Figure 2-2: VM700A front panel
Touch Screen
Freeze
Menu
Move
Expand
DisplayGraticule
SOURCE
ABC
HelpConfigure Function
Select Line
Intensity
Average
Average
Copy
STBY
ON
The display (CRT) area of the VM700A is also a touch screen for user input. The
screen displays input waveform signals, the digital vectorscope, a low-quality
television picture of the input signal, graphic measurement displays, and
automatic measurement results. Many operations are performed by selecting soft
keys (menu-controlled touch screen controls) at the bottom of the display; when
applicable, selection values are changed by rotating the control knob.
Manual and Auto
Operational Mode Buttons
The top row of buttons controls the operational modes (the major functions). The
VM700A has five operational modes: four “manual” modes and Auto mode. The
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
2-3
Section 2 - Installation and Operation
manual modes are Waveform, Vector, Picture, and Measure. The power-on
default mode is Waveform.
The manual modes perform the specified operation and provide a graphic display
with digital readouts plus status information. Auto mode makes measurements
automatically and provides a tabular listing of the measurement results.
Reporting of measurement results can be performed in both manual and Auto
mode.
Parameters such as clamping, sync source, and the displayed line (system line)
are common for all the manual modes of operation. However, manual modeparameters do not carry over to Auto mode. Parameters for both Auto mode and
the manual modes are set through the directory and file structure accessed
through the Configure button.
Freeze. Source Selection,
and Average Functions
The second row down in the keypad contains the Freeze button, the input
channel selection buttons (grouped as SOURCE A, B, and C), and the Average
button.
Freeze. When Freeze is selected, signal acquisition is halted. The frozen display
may be repositioned or resized according to the application, as described below
under Control Knob, but the display is not updated. Starting a new measurement
or operation unfreezes the display.
Source and Polarity Selection. For all operational modes, one of the input sources
is always selected. Selected sources are indicated by a lighted LED in the panel
button.
For some modes, an input source can be inverted. This feature may be used to
invert a positive-sync video signal to obtain the correct polarity for measurement
by the VM700A. To invert a single source, press and hold the source button
approximately one second, until the instrument beeps. When a source is inverted,
the LED on the source button blinks. To invert a second source and add it to
another, press and hold the normal (non-inverted) source and, while holding it,
quickly press and release the inverted source. The LED on the inverted source
will flash.
In Waveform and Vector modes, an inverted source can be the sole input or it can
be added to another input. In Measure mode, an inverted source can only be
added to another source.
2-4
Support Functions
Average. The Average button enables noise reduction (averaging) on the signal in
Waveform, Vector, and Measure modes. The amount of noise reduction (up to
30.10 dB) is set with the Noise soft keys. The number of averages (up to 256) is
set with the Average Num soft keys.
The third row down in the keypad contains support functions: Menu, Help,
Configure, Function, and Copy. All of these functions except Copy are toggled
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
Section 2 - Installation and Operation
on and off, either by pressing the button twice (that is, press once to turn on;
press again to turn off), or by selecting a different operational mode in the top
row (except Help which must be pressed a second time to turn it off).
Menu. The Menu button displays a menu of soft keys on screen. In some cases,
touching a soft key displays a submenu of additional soft keys when it is
selected.
Help. The Help button activates the Help function. When Help is turned on,
pressing a button or selecting a soft key displays a brief explanation of the button
or soft key; all buttons and soft keys, except Help, lose their normal function.
The LED on the Help button flashes while Help is active. Help is turned off by
pressing the Help button a second time.
Configure and Function. The Configure button and its usage are discussed in
Section 3, Configuring the VM700A. The Function button and its usage are
discussed in the VM700A Programmer’s Reference Manual.
Copy. The Copy button sends a copy of the display to the print spooler (temporary memory space) to queue for printing. The LED in the Copy button will flash
as long as the copy remains in the spooler. To delete the copy from the spooler,
press the Configure button while the Copy LED is flashing and select the CancelCopy soft key. This soft key only appears in the Configure menu when a copy is
pending in the spooler.
Control Knob
The specific functions of the control knob in each mode are described in the
relevant sections of this manual as the function of the control knob depends on
the current mode of operation. Its general operation is described here.
Waveform Expansion and Positioning. In Waveform mode, rotating the control
knob affects horizontal or vertical movement of the display or horizontal or
vertical expansion of the display, depending on the selections of the Move/Expand button and the Horizontal/Vertical button. In Expand mode, the normal
expansion (horizontal or vertical, depending on the arrow button selection) is
around the center of the display. A specific point for expansion is selected by
touching the screen at the expansion point wanted. Expansion or contraction is
around the touched point while the screen is touched. It reverts to the center of
the screen when your finger is removed from the touch screen.
Select Line The Select Line button assigns the function of the control knob to
video signal line selection. The LED in the Select Line button is on when Select
Line is active. To scroll through the field line by line, press the Select Line
button and rotate the control knob. Depending on the operational mode, a menu
of soft keys may also appear. The Select Line soft keys and the specific control
knob functions are described in the relevant sections of this manual.
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
2-5
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