Extron electronics VTG 400 User manual

VTG 400/400D
Programmable Video and Audio Test Generator
68-786-01 Rev. B
04 05
im Vertrieb von
CAMBOARD Electronics
www.camboard.de
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Fax [phone]
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This symbol is intended to alert the user of important operating and maintenance
(servicing) instructions in the literature provided with the equipment.
This symbol is intended to alert the user of the presence of uninsulated dangerous
voltage within the product's enclosure that may present a risk of electric shock.
Caution
Read Instructions • Read and understand all safety and operating instructions before using the
equipment.
Retain Instructions • The safety instructions should be kept for future reference.
Follow Warnings • Follow all warnings and instructions marked on the equipment or in the user
information.
Avoid Attachments • Do not use tools or attachments that are not recommended by the equipment
manufacturer because they may be hazardous.
Warning
Power sources • This equipment should be operated only from the power source indicated on
the product. This equipment is intended to be used with a main power system with a
grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt
to bypass or disable it.
Power disconnection • To remove power from the equipment safely, remove all power cords
from the rear of the equipment, or the desktop power module (if detachable), or from the
power source receptacle (wall plug).
Power cord protection • Power cords should be routed so that they are not likely to be stepped
on or pinched by items placed upon or against them.
Servicing • Refer all servicing to qualified service personnel. There are no user-serviceable parts
inside. To prevent the risk of shock, do not attempt to service this equipment yourself because
opening or removing covers may expose you to dangerous voltage or other hazards.
Slots and openings • If the equipment has slots or holes in the enclosure, these are provided to
prevent overheating of sensitive components inside. These openings must never be blocked by
other objects.
Lithium battery • There is a danger of explosion if battery is incorrectly replaced. Replace it only
with the same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer's instructions.
Ce symbole sert à avertir l’utilisateur que la documentation fournie avec le
matériel contient des instructions importantes concernant l’exploitation et la
maintenance (réparation).
Ce symbole sert à avertir l’utilisateur de la présence dans le boîtier de l’appareil
de tensions dangereuses non isolées posant des risques d’électrocution.
Attention
Lire les instructions• Prendre connaissance de toutes les consignes de sécurité et d’exploitation avant
d’utiliser le matériel.
Conserver les instructions• Ranger les consignes de sécurité afin de pouvoir les consulter à l’avenir.
Respecter les avertissements • Observer tous les avertissements et consignes marqués sur le matériel ou
présentés dans la documentation utilisateur.
Eviter les pièces de fixation • Ne pas utiliser de pièces de fixation ni d’outils non recommandés par le
fabricant du matériel car cela risquerait de poser certains dangers.
Avertissement
Alimentations• Ne faire fonctionner ce matériel qu’avec la source d’alimentation indiquée sur
l’appareil. Ce matériel doit être utilisé avec une alimentation principale comportant un fil de
terre (neutre). Le troisième contact (de mise à la terre) constitue un dispositif de sécurité :
n’essayez pas de la contourner ni de la désactiver.
Déconnexion de l’alimentation• Pour mettre le matériel hors tension sans danger, déconnectez tous
les cordons d’alimentation de l’arrière de l’appareil ou du module d’alimentation de bureau (s’il
est amovible) ou encore de la prise secteur.
Protection du cordon d’alimentation • Acheminer les cordons d’alimentation de manière à ce que
personne ne risque de marcher dessus et à ce qu’ils ne soient pas écrasés ou pincés par des
objets.
Réparation-maintenance • Faire exécuter toutes les interventions de réparation-maintenance par un
technicien qualifié. Aucun des éléments internes ne peut être réparé par l’utilisateur. Afin
d’éviter tout danger d’électrocution, l’utilisateur ne doit pas essayer de procéder lui-même à ces
opérations car l’ouverture ou le retrait des couvercles risquent de l’exposer à de hautes tensions
et autres dangers.
Fentes et orifices • Si le boîtier de l’appareil comporte des fentes ou des orifices, ceux-ci servent à
empêcher les composants internes sensibles de surchauffer. Ces ouvertures ne doivent jamais
être bloquées par des objets.
Lithium Batterie • Il a danger d'explosion s'll y a remplacment incorrect de la batterie. Remplacer
uniquement avec une batterie du meme type ou d'un ype equivalent recommande par le
constructeur. Mettre au reut les batteries usagees conformement aux instructions du fabricant.
Safety Instructions • English
Consignes de Sécurité • Français
Sicherheitsanleitungen • Deutsch
Este símbolo se utiliza para advertir al usuario sobre instrucciones importantes
de operación y mantenimiento (o cambio de partes) que se desean destacar en el
contenido de la documentación suministrada con los equipos.
Este símbolo se utiliza para advertir al usuario sobre la presencia de elementos
con voltaje peligroso sin protección aislante, que puedan encontrarse dentro de
lacajaoalojamientodelproducto,yquepuedanrepresentarriesgodeelectrocución.
Precaucion
Leer las instrucciones • Leer y analizar todas las instrucciones de operación y seguridad, antes de usar
el equipo.
Conservar las instrucciones • Conservar las instrucciones de seguridad para futura consulta.
Obedecer las advertencias • Todas las advertencias e instrucciones marcadas en el equipo o en la
documentación del usuario, deben ser obedecidas.
Evitar el uso de accesorios • No usar herramientas o accesorios que no sean especificamente
recomendados por el fabricante, ya que podrian implicar riesgos.
Advertencia
Alimentación eléctrica • Este equipo debe conectarse únicamente a la fuente/tipo de alimentación
eléctrica indicada en el mismo. La alimentación eléctrica de este equipo debe provenir de un
sistema de distribución general con conductor neutro a tierra. La tercera pata (puesta a tierra) es
una medida de seguridad, no puentearia ni eliminaria.
Desconexión de alimentación eléctrica • Para desconectar con seguridad la acometida de
alimentación eléctrica al equipo, desenchufar todos los cables de alimentación en el panel trasero
del equipo, o desenchufar el módulo de alimentación (si fuera independiente), o desenchufar el
cable del receptáculo de la pared.
Protección del cables de alimentación • Los cables de alimentación eléctrica se deben instalar en
lugares donde no sean pisados ni apretados por objetos que se puedan apoyar sobre ellos.
Reparaciones/mantenimiento • Solicitar siempre los servicios técnicos de personal calificado. En el
interior no hay partes a las que el usuario deba acceder. Para evitar riesgo de electrocución, no
intentar personalmente la reparación/mantenimiento de este equipo, ya que al abrir o extraer las
tapas puede quedar expuesto a voltajes peligrosos u otros riesgos.
Ranuras y aberturas • Si el equipo posee ranuras o orificios en su caja/alojamiento, es para evitar el
sobrecalientamiento de componentes internos sensibles. Estas aberturas nunca se deben obstruir
con otros objetos.
Batería de litio • Existe riesgo de explosión si esta batería se coloca en la posición incorrecta. Cambiar
esta batería únicamente con el mismo tipo (o su equivalente) recomendado por el fabricante.
Desachar las baterías usadas siguiendo las instrucciones del fabricante.
Instrucciones de seguridad • Español
Precautions
Dieses Symbol soll dem Benutzer in der im Lieferumfang enthaltenen
Dokumentation besonders wichtige Hinweise zur Bedienung und Wartung
(Instandhaltung) geben.
Dieses Symbol soll den Benutzer darauf aufmerksam machen, daß im Inneren des
Gehäuses dieses Produktes gefährliche Spannungen, die nicht isoliert sind und
die einen elektrischen Schock verursachen können, herrschen.
Achtung
Lesen der Anleitungen • Bevor Sie das Gerät zum ersten Mal verwenden, sollten Sie alle Sicherheits-und
Bedienungsanleitungen genau durchlesen und verstehen.
Aufbewahren der Anleitungen • Die Hinweise zur elektrischen Sicherheit des Produktes sollten Sie
aufbewahren, damit Sie im Bedarfsfall darauf zurückgreifen können.
Befolgen der Warnhinweise • Befolgen Sie alle Warnhinweise und Anleitungen auf dem Gerät oder in
der Benutzerdokumentation.
Keine Zusatzgeräte • Verwenden Sie keine Werkzeuge oder Zusatzgeräte, die nicht ausdrücklich vom
Hersteller empfohlen wurden, da diese eine Gefahrenquelle darstellen können.
Vorsicht
Stromquellen • Dieses Gerät sollte nur über die auf dem Produkt angegebene Stromquelle betrieben
werden. Dieses Gerät wurde für eine Verwendung mit einer Hauptstromleitung mit einem
geerdeten (neutralen) Leiter konzipiert. Der dritte Kontakt ist für einen Erdanschluß, und stellt
eine Sicherheitsfunktion dar. Diese sollte nicht umgangen oder außer Betrieb gesetzt werden.
Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen, sollten Sie alle
Netzkabel aus der Rückseite des Gerätes, aus der externen Stomversorgung (falls dies möglich
ist) oder aus der Wandsteckdose ziehen.
Schutz des Netzkabels • Netzkabel sollten stets so verlegt werden, daß sie nicht im Weg liegen und
niemand darauf treten kann oder Objekte darauf- oder unmittelbar dagegengestellt werden
können.
Wartung • Alle Wartungsmaßnahmen sollten nur von qualifiziertem Servicepersonal durchgeführt
werden. Die internen Komponenten des Gerätes sind wartungsfrei. Zur Vermeidung eines
elektrischen Schocks versuchen Sie in keinem Fall, dieses Gerät selbst öffnen, da beim Entfernen
der Abdeckungen die Gefahr eines elektrischen Schlags und/oder andere Gefahren bestehen.
Schlitze und Öffnungen • Wenn das Gerät Schlitze oder Löcher im Gehäuse aufweist, dienen diese
zur Vermeidung einer Überhitzung der empfindlichen Teile im Inneren. Diese Öffnungen dürfen
niemals von anderen Objekten blockiert werden.
Litium-Batterie • Explosionsgefahr, falls die Batterie nicht richtig ersetzt wird. Ersetzen Sie
verbrauchte Batterien nur durch den gleichen oder einen vergleichbaren Batterietyp, der auch
vom Hersteller empfohlen wird. Entsorgen Sie verbrauchte Batterien bitte gemäß den
Herstelleranweisungen.
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QS-1VTG 400/400D • Quick Start
Quick Start — VTG 400/400D
Installation
CAUTION
Operation and service must be
performed by authorized personnel
only. These units must be operated
in accordance with national and local
electrical codes.
Step 1
Turn off power to the video test generator and any
output devices, and remove power cords from
them.
Step 2
If desired, install the four rubber feet on the bottom
of the VTG.
Step 3
Rear panel video outputs
Attach output devices to the VTG.
For RGBHV, RGBS, RGsB, or RsGsBs output:
For R-Y, Y, B-Y component output:
The 15-pin HD RGB output
connector will output
RGBHV, RGBS, RGsB, and
RsGsBs.
For composite video output:
For S-video output:
For SDI/HDSDI output (VTG 400D only):
Step 4
Rear panel audio outputs
Attach audio output devices to the VTG. Wire the
connectors as shown below.
RCA (unbalanced mono audio) output 1:
3.5 mm mini phone jack (unbalanced mono left
and right channels) output 2:
RGBHV output RGBS output
RGBV
H/HV
RGBV
H/HV
RGBV
H/HV
RGsB, RsGsBs output
Component video output
(R-Y, Y, B-Y)
R-Y YB-Y
COMPOSITE
S-VIDEO
RGB
SDI/HDSDI
1
2
3
Tip (+)
Sleeve ( )
RCA Connector
XLR (balanced mono) output 3:
Scope Trigger
When using an oscilloscope, connect the scope’s
external trigger to the trigger connector of the
VTG.
Sleeve ( )
Ring (R)
Tip (L)
Application Pin 1 Pin 2 Pin 3
Balanced audio (std.) gnd (shield) positive (+) negative (-)
(on sending/female connector) (hot/live) (cold/return)
3-pin XLR Pin Configuration
Operation
TRIGGER
Video Adjustments
Test pattern selection buttons
Depending on the currently selected video rate, press the
Video Test Pattern and selection buttons to select from
up to 28 different video test patterns. The newly selected
test pattern will display on the LCD for 3 seconds before
returning to the previous menu. Refer to the Test Pattern
Chart in Appendix A of the user’s manual for the table of
available test patterns and their features.
Video output range button
Press the Video Range button to select from among eight
output range categories.
Video output rate buttons
Press the and Video Rate buttons to select an output
rate for the chosen output range. The output rates are
displayed two-at-a-time on the LCD. After choosingthe
desired rate, press the Select button to activate the
highlighted rate.
Test pattern invert / special function button
Press the button to toggle the selected test pattern
between normal and inverted (special) state (when
available).
Video level adjustment buttons
Use the and buttons (next to pattern name) to adjust
the test pattern’s video level between 0% (0 IRE) and 100%
(100 IRE), when available.
Audio Adjustments
Signal type selection button
The VTG 400/400D can selectively output seven different
audio signal formats: pink noise, white noise, sine wave,
square wave, frequency sweep, polarity test, and sine burst.
Audio level selection buttons
The RMSaudio output level for each audio signal type is
adjusted between a range of values using the or Level
buttons.
Audio frequency selection buttons
The frequency for each audio signal type is adjusted between
a range of values using the or Audio Frequency
buttons. The following frequencies are available for the signal
types below:
• Sine wave and sine burst: 20 Hz - 20 kHz in 1/12 octave
steps
• Square wave: 20 Hz - 5 kHz in 1/12 octave steps
• Frequency sweep speed: 1 - 120 seconds
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Quick Start — VTG 400/400D, cont’d
VTG 400/400D • Quick StartQS-2
Scope Trigger Adjustments
Scope trigger cursor buttons
Press the and selection buttons to move the trigger
point between lines (y-axis) and press the and
selection buttons to move the trigger point between pixels
(x-axis) on the current line.
Scope trigger shape button
Press the Shape button to toggle the on-screen cursor’s
shape between crosshair (useful for locating the cursor on the
display screen) and single pixel (useful for locating the cursor
on the oscilloscope screen).
Scope trigger hide button
Press the Hide button to toggle the cursor on (visible) and off
(hidden).
Quick Select Preset Buttons
SAVE
CANCEL
Savinga Preset
Up to four video and/or audio settings can be saved to one of
the four Quick Select buttons:
1. Press and hold the desired Quick Select button for about 2
seconds until the Quick Select setup menu appears.
2. Press the or on-screen buttons to select Audio
settings, Video settings, or All settings (Audio and Video).
3. Press to save the setting(s) to the Quick Select
button or press to cancel the operation and not
save the setting(s) to the Quick Select button.
Recallinga Preset
Press the desired Quick Select button to recall the stored
settings.
Button Lock Mode
Press and hold the Signal Type and Test Pattern buttons simultaneously for 2 seconds to enable/disable the top panel
buttons.
AUDIO
SETUP
MENU
MENU
VIDEO
SETUP
MENU
ADVANCED
SETUP
MENU
NEXT
MENU
EXIT MENU
Press "NEXT" button
Power
on
RES: VGA 640x480
FRQ: 31.50kHz 60.00Hz
PAT: Fine Crosshatch
SIG: Pink noise FRQ: N/A
LEV: -10 dBu 245mV
Menu Adjustments
Press the Menu and Next buttons to navigate through the menus. Use
the four arrow selection buttons adjacent to the LCD to make changes to
the settings.
Audio Setup menu
•Audio level units: dBu or dBv
• Output 2 enable: left & right channel output, left output, or right output
• Burst interval (cycles per interval): from 00001 to 65535
• Burst on (cycles per burst): from 00001 to 65535, must be < or = to
burst interval
• Frequency sweep start frequency: 20.0 Hz to 19.0 kHz
• Frequency sweep stop frequency: 21.2 Hz to 20.0 kHz
• Frequency sweep format: logarithmic (default) or linear
• Frequency sweep direction: low-to-high (start freq. to stop freq. - default)
or high-to-low (stop to start)
• Audio mute: on or off (default)
• Square wave automatic attenuation: on (autoattenuate to -40 dBu) or off
(default) when toggling through the audio signals
Video Setup menu
•RGB sync format: RGBHV (default), RGBS, RGsB, or RsGsBs
•Raster border: 1-pixel white border on or off (default)
•On-screen display: on or off (default)
•Autosequence mode: on or off (default)
•Autosequence interval (display period per test pattern): 15 sec. (default),
30 sec., 60 sec.
•RGB color channel enable: enable (on) or disable (off) red, green,
and/or blue channels (default = all channels on)
Advanced Setup menu
•Timeout interval (for screensaver): 5, 10, 15, or 30 minutes, or never
(default)
•Screensaver mode: blank (black screen, default), or cycle (through test
patterns in 4-second intervals)
•LCD display contrast: level 000 through 063 (default = 032)
•Internal temperature: displays the VTG 400’s internal temperature in
degrees Fahrenheit/Celsius
•System reset (to default settings): yes or no; if yes is selected, a
confirmation menu appears. Custom rates are not affected or
overwritten during reset.
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i
VTG 400/400D • Table of Contents
Table of Contents
Chapter 1 • Introduction ...................................................................................................... 1-1
About this Manual ............................................................................................................ 1-2
About the VTG 400/400D ............................................................................................... 1-2
Other Features .................................................................................................................... 1-2
Chapter 2 • Installation and Operation...................................................................... 2-1
Application Example ........................................................................................................ 2-2
Tabletop or Desktop Placement ................................................................................ 2-2
Rear Panel Connectors and Cabling ........................................................................ 2-3
Connecting Audio Outputs .......................................................................................... 2-5
RCA connector................................................................................................................... 2-5
XLR connector ................................................................................................................... 2-5
Mini stereo plug ............................................................................................................... 2-5
Top Panel Features ............................................................................................................ 2-6
Audio Testing Features................................................................................................... 2-8
Selecting audio signals .................................................................................................... 2-8
Setting the audio level .................................................................................................... 2-9
Setting the audio frequency ........................................................................................... 2-9
Menus, Configuration, and Adjustments .......................................................... 2-10
Moving through menus by using front panel controls ............................................. 2-10
Menu overview ............................................................................................................... 2-11
Audio Setup menu ......................................................................................................... 2-12
Audio Setup submenu (1 of 5) ..........................................................................................2-12
Audio level units .......................................................................................................... 2-12
Output 2 enable .......................................................................................................... 2-12
Audio Setup submenu (2 of 5) ..........................................................................................2-12
Burst interval ............................................................................................................... 2-12
Burst on ........................................................................................................................ 2-13
Audio Setup submenu (3 of 5) ..........................................................................................2-13
F. Sweep Start Freq ...................................................................................................... 2-13
F. Sweep Stop Freq ....................................................................................................... 2-13
Audio Setup submenu (4 of 5) ..........................................................................................2-13
F. Sweep Format .......................................................................................................... 2-13
F. Sweep Direction ....................................................................................................... 2-13
Audio Setup submenu (5 of 5) ..........................................................................................2-13
Audio Mute .................................................................................................................. 2-13
Square Wave Auto Attenuate.................................................................................... 2-13
Video Setup menu .......................................................................................................... 2-14
Video Setup submenu (1 of 4) .......................................................................................... 2-14
RGB sync format .......................................................................................................... 2-14
Raster border ............................................................................................................... 2-14
Video Setup submenu (2 of 4) .......................................................................................... 2-14
On-Screen Display ........................................................................................................ 2-14
Video Setup submenu (3 of 4) .......................................................................................... 2-15
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ii VTG 400/400D • Table of Contents
Table of Contents, cont’d
Autosequence Mode ................................................................................................... 2-15
Autosequence Interval ................................................................................................ 2-15
Video Setup submenu (4 of 4) .......................................................................................... 2-15
RGB Color Channel Enable .......................................................................................... 2-15
Advanced Setup menu ................................................................................................... 2-16
Advanced Setup submenu (1 of 3) ................................................................................... 2-16
Time-out interval ......................................................................................................... 2-16
Screensaver Mode ....................................................................................................... 2-17
Advanced Setup submenu (2 of 3) ................................................................................... 2-17
LCD Display Contrast ................................................................................................... 2-17
Internal Temperature ................................................................................................. 2-17
Advanced Setup submenu (3 of 3) ................................................................................... 2-17
System Reset ............................................................................................................... 2-17
System Reset Confirm ................................................................................................. 2-17
Exit menu ........................................................................................................................ 2-18
Additional Functions ..................................................................................................... 2-18
Top panel security lockout (button lock mode) .......................................................... 2-18
Quick select buttons ....................................................................................................... 2-19
Video output range and rate buttons .......................................................................... 2-20
Test pattern selection buttons ....................................................................................... 2-21
Invert/special features functions ......................................................................................2-22
Adjusting the video level of test patterns ................................................................... 2-23
Scope-Trigger buttons .................................................................................................... 2-23
Chapter 3 • Serial Communication ................................................................................ 3-1
RS-232 Programmer’s Guide ........................................................................................ 3-2
Host-to-VTG communications .......................................................................................... 3-2
Video test generator-initiated messages .......................................................................... 3-2
Error responses ................................................................................................................... 3-2
Using the command/response tables ................................................................................. 3-3
Symbol definitions ............................................................................................................... 3-3
Command/response table for SIS commands..................................................................... 3-6
Control Software for Windows®............................................................................. 3-11
Installing the software ................................................................................................... 3-11
Using the control program ............................................................................................ 3-11
Drop-down menus .......................................................................................................... 3-12
File menu ........................................................................................................................... 3-12
Video menu .......................................................................................................................3-13
Audio menu .......................................................................................................................3-13
Options menu ....................................................................................................................3-13
Help menu .........................................................................................................................3-14
Video tab ......................................................................................................................... 3-14
Scan Groups screen ........................................................................................................... 3-14
Test Patterns screen .......................................................................................................... 3-18
Settings screen ..................................................................................................................3-19
Audio tab ......................................................................................................................... 3-20
Scope-Trigger tab ............................................................................................................ 3-21
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iii
VTG 400/400D • Table of Contents
Power/Status button ....................................................................................................... 3-22
Button Lock/Status button ............................................................................................ 3-22
Using the help program ................................................................................................. 3-22
Using the Emulation Mode .............................................................................3-23
Firmware Upgrade Through the Extron Web Site ......................................... 3-25
Downloading the latest firmware to the PC ............................................................... 3-25
Uploading the firmware from the PC to the VTG 400/400D ...................................... 3-25
Appendix A • Reference Materials ................................................................................ 3-1
Specifications ..................................................................................................................... A-2
Included Parts ..................................................................................................................... A-4
Test Patterns Chart .......................................................................................................... A-5
Test Patterns in Detail ................................................................................................... A-8
1. Circles ............................................................................................................................ A-8
2. Safe Area (5%/10%)..................................................................................................... A-8
3. Focus ............................................................................................................................. A-8
4. 16:9 Crop (4:3 rates)..................................................................................................... A-9
4:3 Crop (16:9 rates) .................................................................................................. A-9
5. Rectangle/Square Crosshairs ....................................................................................... A-9
6. 4x4 Crosshatch ............................................................................................................. A-9
7. Coarse Crosshatch ........................................................................................................ A-9
8. Fine Crosshatch .......................................................................................................... A-10
9. PLUGE .......................................................................................................................... A-10
Setting Black Level ........................................................................................................... A-10
Contrast Gain ................................................................................................................... A-11
10. 32-Level Split Grayscale .......................................................................................... A-11
11. Extreme Grayscale ................................................................................................... A-11
12. Ramp ......................................................................................................................... A-12
13. Color Bars (8-color split) ......................................................................................... A-12
SMPTE Color Bars (with PLUGE pattern) ............................................................... A-12
EBU Color Bars (8-color full bars) .......................................................................... A-13
14. Window 80% ........................................................................................................... A-13
15. Window 20% ........................................................................................................... A-14
16. Window (variable level) ......................................................................................... A-14
17. Flat Field ................................................................................................................... A-14
18. Flat Field with Targets ............................................................................................ A-14
19. Checkerboard ........................................................................................................... A-15
20. Bounce (automatic) ................................................................................................. A-14
21. Bounce (manual toggle) ......................................................................................... A-15
22. Alternating Pixels (1 on, 1 off) ............................................................................... A-16
Frequency Sweep .................................................................................................... A-16
23. Graphics Multiburst ................................................................................................. A-16
Multiburst ................................................................................................................ A-16
24. Alternating Pixels (2-dimensional) ........................................................................ A-17
Multipulse ................................................................................................................ A-17
NTSC Multipulse ............................................................................................................... A-17
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iv VTG 400/400D • Table of Contents
Table of Contents, cont’d
68-786-01 Rev. B
04 05
All trademarks mentioned in this manual are the properties of their respective owners.
PAL Multipulse.................................................................................................................. A-18
25. Transient Response .................................................................................................. A-18
26. Contrast Transfer Function (CTF) ............................................................................ A-19
27. H Pattern ................................................................................................................... A-19
28. Hum Bar Detect ........................................................................................................ A-20
Video Output Scan Rate Table ................................................................................. A-21
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VTG 400/400D
1
Chapter One
Introduction
About this Manual
About the VTG 400/400D
Other Features
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VTG 400/400D • Introduction1-2
Introduction
About this Manual
This manual discusses how to set up and operate the Extron VTG 400/400D
programmable video test generator.
Throughout this manual the terms “VTG”, “video test generator”, and
“VTG 400/400D” are used interchangeably to refer to the same product.
About the VTG 400/400D
The Extron VTG 400 and VTG 400D are advanced, programmable, and
upgradeable video and audio test generators that deliver accurate, wide
bandwidth video signals and high performance audio test signals. These test
generators are professional quality reference tools for setup, performance
evaluation, calibration, and troubleshooting audio and video systems.
The VTG 400 offers a comprehensive array of video test patterns, as well as a
suite of audio reference signals. Video is output simultaneously as RGB,
component video, S-video, and composite video. An SDI and HDSDI output is
included with the VTG 400D. Audio is output simultaneously on a 3.5 mm mini
phone plug (unbalanced left and right mono) as well as on an RCA jack
(unbalanced mono) and a 3-pin XLR connector (balanced mono).
The VTG 400 is designed to provide a wide variety of reference signal types. A
total of 98 output scan rates are available for high resolution computer video, as
well as HDTV, NTSC, and PAL. Up to 183 additional rates can be programmed
into the VTG 400.
Operation of the VTG 400 is intuitive and convenient, with an easy-to-read LCD
screen on the main panel, direct access buttons, and memory presets for quick
saving and recall of user settings.
A powerful and innovative feature is the Scope-Trigger™output (patent pending),
which enables analysis of a selected area within the video image using an
oscilloscope. Scope-Trigger greatly simplifies and speeds up oscilloscope
setup for video signals by using a specially generated trigger signal precisely
timed to a user-defined target location on the image.
Other Features
Video output connectors — RGB, composite, and component video are output
via BNC connectors or a 15-pin HD connector (RGB). S-video is output
from a 4-pin mini DIN connector. SDI/HDSDI (VTG 400D) is output via a
BNC connector.
Audio output connectors — Audio outputs are via a 3-pin XLR connector for
balanced audio, a 3.5 mm phone jack for unbalanced left and right audio,
and an RCA jack for unbalanced audio.
Scope-Trigger cursor — The Scope-Trigger cursor may be visible or invisible. If
visible, the cursor may be either a crosshair or single pixel and can be
positioned anywhere within the video signal using the directional cursor
buttons.
RS-232 remote control — The VTG 400/400D can be remotely controlled by a
host computer via an RS-232 control port utilizing Extron’s Simple
Instruction Set (SIS™) of basic ASCII commands or through the Windows®-
based control software.
Flash-upgradeable firmware — The VTG’s firmware can be updated using the
Windows-based Control program via the RS-232 port.
Nonvolatile memory — The VTG 400 retains its configuration settings after the
video test generator has been powered off.
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VTG 400/400D
2
Chapter Two
Installation and Operation
Application Example
Tabletop or Desktop Placement
Rear Panel Connectors and Cabling
Connecting Audio Outputs
Top Panel Features
Audio Testing Features
Menus, Configuration, and Adjustments
Additional Functions
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Installation and Operation
VTG 400/400D • Installation and Operation2-2
Application Example
The illustration below is one example of implementing the VTG 400.
AUDI O
SIGNAL
TYPE
LEVEL
FREQUENCY
VIDEO
TEST
PATTERN
RANGE
SELECT
RATE
MENU
QUICK
SELECT SCOPE-TRIGGER
1
2
3
CURSOR
SHAPE HIDE
4
NEXT
VTG 400
VIDEO & AUDIO TEST GENERATOR
RS-232
50-60Hz
COMPOSITE
RGBH/HVV
S-VIDEO R-Y Y B-Y RGB TRIGGER 1
SDI/HDSDI
100-240V 0.3A
LISTED
1T23
I.T.E.
AUDIO
23
Extron
VTG 400
Video & Audio Test Generator
Extron 15-pin HD
VGA Cable
Top (rotated 180 degrees)
Front
Display
POWER
Tabletop or Desktop Placement
For tabletop or desktop placement, install the self-adhesive rubber feet/pads
(provided) onto the four corners of the bottom of the enclosure
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2-3VTG 400/400D • Installation and Operation
Rear Panel Connectors and Cabling
RS-232
50-60Hz
COMPOSITE
RG BH/HVV
S-VIDEO R-Y Y B-Y RGB TRIGGER 1
SDI/HDSDI
100-240V 0.3A
LISTED
1T23
I.T.E.
AUDIO
23
4
1 2 36 9 10 11 12
8
7
5
VTG 400 and VTG 400D rear panel connectors
RGB video, component video, composite video, S-video, and SDI/HDSDI
(VTG 400D only) video are output simultaneously.
1
AC power connector — Plug a standard IEC power cord into the connector
to connect the VTG to a 100 to 240 VAC, 50 Hz or 60 Hz power source.
2
Composite video output connector — Composite video is output through
this BNC connector.
3
S-video output connector — S-video is output through this 4-pin mini DIN
connector.
4
RGB computer video output connectors — Connect a display device to the
five female BNC connectors for RGBHV, RGBS, RGsB, or RsGsBs video
output, as follows:
RGBHV output RGBSoutput
RGBV
H/HV
RGBV
H/HV
RGBV
H/HV
RGsB, RsGsBs output
5
R-Y, Y, B-Y component video output connectors — Connect a display
device to the three female BNC connectors for component video output:
Component video output
(R-Y, Y, B-Y)
R-Y YB-Y
6
15-pin RGB output connector — RGBHV, RGBS, RGsB, and RsGsBs are
output through this 15-pin HD connector.
7
RS-232 port — This 9-pin female D connector provides for two-way RS-232
communication. See chapter three, “Serial Communication”, for
information on how to install and use the control software and SIS
commands.
The default protocol is 9600 baud, 1 stop bit, no parity, and no flow control.
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Installation and Operation
VTG 400/400D • Installation and Operation2-4
The rear panel RS-232, 9-pin connector has the following pin assignments:
Pin RS-232 function Description
1 – No connection
2 Tx Transmit data
3 Rx Receive data
4– No connection
5 Gnd Signal ground
6 – No connection
7 – No connection
8– No connection
9– No connection
DB9 Pin Locations
Female
51
96
8
SDI/HDSDI serial digital interface output connector (VTG 400D only) —
Connect an output device to the SDI/HDSDI component output female
BNC.
9
Trigger output connector — Connect an oscilloscope to this female BNC
connector when using an oscilloscope to align its display to a specific point
in the video waveform.
The oscilloscope’s external trigger needs to be configured to accept a TTL
level (0 to 5 V) signal.
10
RCA jack (Audio output 1) — Unbalanced mono audio is output from this
female jack. See the note below.
11
3.5 mm mini stereo phone jack (Audio output 2) — Unbalanced mono
audio on both left and right channels is output from this female mini phone
jack. See the note below.
12
XLR audio output connector (Audio output 3) — Balanced mono audio is
output from this 3-pin male connector.
See Connecting Audio Outputs later in this chapter for audio wiring
instructions.
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2-5VTG 400/400D • Installation and Operation
Connecting Audio Outputs
The VTG 400/400D has three types of audio output connectors: an RCA jack, a
3-pin XLR connector, and a 3.5 mm mini stereo phone jack.
RCA connector
Unbalanced mono audio is output from this connector. Wire the RCA connector
as shown here.
Tip (+)
Sleeve ( )
XLR connector
Balanced mono audio is output from this connector. Wire the female XLR
connector as shown here.
3-pin
Male
3
2
3
1
3-pin
Female
3
2
3
1
Application Pin 1 Pin 2 Pin 3
Balanced audio (std.) gnd (shield) positive (+) negative (-)
(on sending/female connector) (hot/live) (cold/return)
3-pin XLR Pin Configuration
Mini stereo plug
Unbalanced mono audio on both left and right channels is output from this
connector. Wire the mini phone plug as shown here.
Sleeve ( )
Ring (R)
Tip (L)
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Installation and Operation, cont’d
VTG 400/400D • Installation and Operation2-6
Top Panel Features
AUDIO
SIGNAL
TYPE
LEVEL
POWER
FREQUENCY
VIDEO
TEST
PATTERN
RANGE
SELECT
RATE
MENU
QUICK
SELECT SCOPE-TRIGGER
1
2
3
CURSOR
SHAPE HIDE
4
NEXT
VTG 400
VIDEO & AUDIO TEST GENERATOR
RES: NTSC 720X485
FRQ:15.70kHz 60/30Hz
SIG:Pink noise FRQ:N/A
LEV:-18dBu 97.6mV
Checkerboard 100%
6 75 8
1
2
4
3
12
11
9
10
13
VTG 400/400D top panel features
1
Audio signal type (Signal Type) — Press this button to select from among
seven different audio test signals: pink noise, white noise, sine wave,
square wave, frequency sweep, polarity test, and sine burst. The signal type
is indicated on the LCD display. See Selecting audio signals later in this
chapter.
2
Audio output signal level adjustment (Level) — Press the button to
increase the RMS signal level and the button to decrease the RMS signal
level. See the Audio Setup menu section in this chapter to specify either dBu
or dBV as the signal level unit. The level setting is indicated on the LCD
display.
The audio output level settings for all audio signal types (see
1
above) are
retained after the VTG is powered off. The default setting is -28 dBu for
polarity test and -10 dBu for all other signal types.
If the Level buttons are held down for more than one second, the VTG
automatically advances through the level adjustment in the direction
indicated by the button.
3
Audio frequency adjustment (Frequency) — When the audio signal type
is either sine wave, square wave, or sine burst (see
1
above), the audio
frequency can be adjusted from 20 Hz to 20 kHz (sine) or 20 Hz to 5 kHz
(square). Press the button to increase the frequency and the button to
decrease the frequency. The adjustment is in 1/12 octave steps. See Setting
the audio frequency later in this chapter. The audio frequency is indicated on
the LCD display.
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2-7VTG 400/400D • Installation and Operation
If the Frequency buttons are held down for more than one second, the VTG
automatically advances through the frequency adjustment in the direction
indicated by the button.
4
Power — Power up or power down the VTG by holding down the Power
button for one second.
5
Menu — Press this button to enter the main menus and to move from menu
to menu.
6
Quick Select — Press these buttons to save and recall up to four user-
defined presets of current audio settings, video settings, or all settings. See
Quick select buttons later in this chapter.
7
Scope Trigger adjustment — Press the cursor buttons to position the
oscillosope’s trigger point, press the Shape button to toggle between a
crosshair or single pixel on-screen cursor, and press the Hide button to
make the cursor visible or invisible. See Scope trigger buttons in this chapter.
8
Next — Press this button to enter a specific submenu of a selected main
menu.
9
Video test pattern (Test Pattern) — Press the or button to select from
among 28 different test patterns. See Selecting a Video Test Pattern later in
this chapter.
10
Video output range (Range) — Pressing this button will display the video
output range menu. See Video output range menu later in this chapter.
11
Video output rate (Rate) — Press the or button to select from among
98 different output rates. See Video output range and rate buttons in this
chapter.
If the Rate buttons are held down for more than one second, the VTG
automatically advances through the video output rate adjustment in the
direction indicated by the button.
12
Select video settings (Select) — Press this button to accept the specified
video settings for the signal range (
10
) and output rate (
11
).
13
LCD display and four arrow selection ( , ) buttons — View this
five-row liquid crystal display to read the VTG status, menus, and options.
Use the four arrow selection buttons on either side of the LCD to select
function option icons, as shown in the example below.
Press arrow selection buttons adjacent
to the function option icons. See the
table of Function Option Icons on the
right.
AUDIO SETUP: <5 of 5>
Audio Mute:
ON
Square Wave Auto Attenuate
ON
OFF
OFF
Each arrow selection button is assigned to the adjacent function on the LCD
display. The following table identifies the different function option icons.
The VTG’s backlight times out after 10 seconds of button inactivity.
Pressing any button except the power button turns the backlight back on.
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Installation and Operation, cont’d
VTG 400/400D • Installation and Operation2-8
Function Option Icons
Cursor movement and option selection
— Press the button next to thisicon to move the cursor left or select an option at the left of the LCD.
— Press the button next to thisicon to move the cursor right or select an option at the right of the LCD.
— Press the button next to thisicon to increment or scroll up to the next selection.
— Press the button next to thisicon to decrement or scroll down to the previous selection.
State indication and option selection
or — Thisicon indicatesthe function ison/active. Press the button next to thisicon to toggle the
“on” state to “off”.
or — Thisicon indicatesthe function isoff/not selected. Press the button next to thisicon to toggle
the “off” state to “on”.
Option selection
or — Press the button next to thisicon to select “yes” or “no”.
— Press the button next to thisicon to save the current settings.
— Press the button next to thisicon to cancel (not save) the current settings.
— Press the button next to thisicon to invert the test pattern.
— Press the button next to thisicon to return the test pattern from the inverted state to the original state.
CANCEL
SAVE
SAVE
YESNO
ON
OFF
ON
OFF
Audio Testing Features
The VTG 400/400D can selectively output seven different audio signal formats. The audio level
can also be selected from a range of levels available for each audio format.
Depending on the audio signal format, the audio frequency may be selected from a range of
values.
See the Top Panel Features section earlier in this chapter for button descriptions.
Selecting audio signals
The following table summarizes the seven audio signal formats available through the VTG.
Pressing the Signal Type button repeatedly scrolls through the signals and displays the signal type
on the LCD.
AUDIO
SIGNAL FORMAT DESCRIPTION
Pink Noise
White Noise
Sine Wave
Random noise that has constant energy per octave.
Used in loudspeaker testing and calibration.
Random noise that has an equal energy distribution
across all frequenciesbetween 20 Hz and 20 kHz.
Used in detecting distortion. The frequency can be set
from 20 Hz to 20 kHz (in 1/12 octave steps).
Square Wave
Frequency Sweep
Polarity test
Sine Burst
Square wave signal with 50% duty cycle and no DC offset.
The frequency can be set from 20 Hz to 5 kHz.
Variesthe frequency of asine wave signal continuously
over the specified frequencies. Used to detect driver
defectsand mechanical sourcesof distortion.
Generatesasine wave of aspecified frequency that isgated
on and off for fixed intervals. Used in testing the transient
response of audio systems.
• The burst interval isdefined by the total number of cycles
(on and off) in each repeating period.
• The burst on duration isdefined by the number of cycles
in the interval where the sine wave isturned on.
See the burst signal example below.
Pulsed waveform (1 Hz pulse, positive-going, pulse width =
1ms, duty cycle = 0.1%) used in verifying the polarity of
audio wiring.
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2-9VTG 400/400D • Installation and Operation
An example of the sine burst signal is shown in the following illustration:
Interval
= 8 Cycles
Burst On
= 5 Cycles
Burst Frequency
= 1 / Cycle
1
Cycle
Setting the audio level
The audio level for each audio signal type is selected from a range of values
using the or Level buttons. The following table lists the range of values.
Audio Audio Level Range Audio Level Range
Signal Format (in dBu increments) (in dBV increments)
Pink Noise -4 dButo -72 dBu-6 dBV to -74 dBV
White Noise +6 dButo -72 dBu+4 dBV to -74 dBV
Sine Wave +6 dButo -72 dBu+4 dBV to -74 dBV
Square Wave +6 dButo -72 dBu+4 dBV to -74 dBV
Frequency Sweep +6 dButo -72 dBu+4 dBV to -74 dBV
Polarity Test -14 dButo -72 dBu-16 dBV to -74 dBV
Sine Burst +6 dButo -72 dBu+4 dBV to -74 dBV
Displayed levels are for high impedance loads. For 600 ohm loads, there is
a -0.7 dB (unbalanced) / -1.3 dB (balanced) difference between the displayed
and actual levels.
Setting the audio frequency
The audio frequency for each audio signal type is selected from a range of values
using the or Audio Frequency buttons and observing the LCD. The
following tables list the available frequencies.
Audio
Signal Format Audio Frequencies
Pink Noise N/A
White Noise N/A
Sine Wave 20 Hz through 20 kHz (see the following Audio Range chart)
Square Wave 20 Hz through 5 kHz (see the following Audio Range chart)
Frequency Sweep Sweep speed (in seconds): 120, 90, 60, 30, 20, 10, 9.0, 8.0, 7.0, 6.0,
5.0, 4.0, 3.0, 2.0, 1.0
Polarity Test 1 Hz
Sine Burst 20 Hz through 20 kHz (see the following Audio Range chart)
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Installation and Operation, cont’d
VTG 400/400D • Installation and Operation2-10
Audio Range
20 Hz
21.2 Hz
22.4 Hz
23.6 Hz
25 Hz
26.5 Hz
28 Hz
80 Hz
85 Hz
90 Hz
95 Hz
100 Hz
106 Hz
112 Hz
315 Hz
335 Hz
355 Hz
375 Hz
400 Hz
425 Hz
450 Hz
1.18 kHz
1.25 kHz
1.32 kHz
1.40 kHz
1.50 kHz
1.60 kHz
1.70 kHz
30 Hz
31.5 Hz
33.5 Hz
35.5 Hz
37.5 Hz
40 Hz
42.5 Hz
118 Hz
125 Hz
132 Hz
140 Hz
150 Hz
160 Hz
170 Hz
475 Hz
500 Hz
530 Hz
560 Hz
600 Hz
630 Hz
670 Hz
1.80 kHz
1.90 kHz
2.00 kHz
2.12 kHz
2.24 kHz
2.36 kHz
2.50 kHz
45 Hz
47.5 Hz
50 Hz
53 Hz
180 Hz
190 Hz
200 Hz
212 Hz
710 Hz
750 Hz
800 Hz
850 Hz
2.65 kHz
2.80 kHz
3.00 kHz
3.15 kHz
3.35 kHz
3.55 kHz
56 Hz
60 Hz
63 Hz
67 Hz
71 Hz
75 Hz
224 Hz
236 Hz
250 Hz
265 Hz
280 Hz
300 Hz
900 Hz
950 Hz
1.0 kHz
1.06 kHz
1.12 kHz
3.75 kHz
4.00 kHz
4.25 kHz
4.50 kHz
4.75 kHz
5.00 kHz
5.30 kHz
5.60 kHz
6.00 kHz
6.30 kHz
6.70 kHz
7.10 kHz
7.50 kHz
8.00 kHz
8.50 kHz
9.00 kHz
9.50 kHz
10.00 kHz
10.60 kHz
11.20 kHz
11.80 kHz
12.50 kHz
13.20 kHz
14.00 kHz
15.00 kHz
16.00 kHz
17.00 kHz
18.00 kHz
19.00 kHz
20.00 kHz
Menus, Configuration, and Adjustments
VTG 400 configuration and adjustments are performed by using top panel
controls and the menus that are displayed on the VTG’s LCD screen. The VTG
can also be controlled via either the Extron Simple Instruction Set (SIS™)
commands or the Windows-based control program (see chapter three for details).
Moving through menus by using front panel controls
Menu button — Press the Menu button to activate menus and to scroll to the
main menus. After 15 seconds of inactivity, the VTG times out and returns
to the default menu cycle.
Next button — Press the Next button to move between the submenus of a
selected main menu.
If a submenu is exited by pressing an audio or video adjustment button, the
NEXT button can be pressed from the default screen to return to that same
submenu.
Arrow selection ( , ) buttons — Use these buttons to scroll through
the submenu options and to make selections. Refer to the flowcharts in this
chapter and to specific sections for explanations of cursor button selections.
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