Extron Electronics VTG 400D, VTG 400 DVI User Manual

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VTG 400D/400 DVI

Programmable Video and Audio Test Generator

68-786-01 Rev. C

04 09

Precautions

Safety Instructions • English

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.

Consignes de Sécurité • Français

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 xation • Ne pas utiliser de pièces de ﬁxation ni d’outils non recommandés par le

fabricant du matériel car cela risquerait de poser certains dangers.

Sicherheitsanleitungen • Deutsch

Dies es Symbol soll dem Benut zer in der im Liefer umfang ent haltenen 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.

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.

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 orices • 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.

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 qualiziertem 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 empndlichen 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.

Instrucciones de seguridad • Español

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 la caja o alojamiento del producto, y que puedan representar riesgo de electrocución.

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.

安全须知 • 中文

这个符号提示用户该设备用户手册中有重要的操作和维护说明。

这个符号警告用户该设备机壳内有暴露的危险电压，有触电危险。

注意

阅读说明书 • 用户使用该设备前必须阅读并理解所有安全和使用说明。保存说明书 • 用户应保存安全说明书以备将来使用。遵守警告 • 用户应遵守产品和用户指南上的所有安全和操作说明。避免追加 • 不要使用该产品厂商没有推荐的工具或追加设备，以避免危险。

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 calicado. 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.

警告

电源 • 该设备只能使用产品上标明的电源。设备必须使用有地线的供电系统供电。第三条线

（地线）是安全设施，不能不用或跳过。

拔掉电源 • 为安全地从设备拔掉电源，请拔掉所有设备后或桌面电源的电源线，或任何接到市

电系统的电源线。

电源线保护 • 妥善布线，避免被踩踏，或重物挤压。维护 • 所有维修必须由认证的维修人员进行。设备内部没有用户可以更换的零件。为避免出

现触电危险不要自己试图打开设备盖子维修该设备。

通风孔 • 有些设备机壳上有通风槽或孔，它们是用来防止机内敏感元件过热。不要用任何东

西挡住通风孔。

锂电池 • 不正确的更换电池会有爆炸的危险。必须使用与厂家推荐的相同或相近型号的电池。

按照生产厂的建议处理废弃电池。

FCC Class A Notice

This equipment has been tested and found to comply with the limits for a Class A digital

device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.

This unit was tested with shielded cables on the peripheral devices. Shielded cables must be

used with the unit to ensure compliance.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Table of Contents

Chapter 1 • Introduction ...................................................................................................... 1-1

About this Manual ............................................................................................................ 1-2

About the VTG 400D/400 DVI ...................................................................................... 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

VTG 400D/400 DVI • 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 4) ................................................................................... 2-16

Time-out interval ......................................................................................................... 2-16

Screensaver Mode .......................................................................................................2-17

Advanced Setup submenu (2 of 4) ................................................................................... 2-17

LCD Display Contrast ...................................................................................................2-17

LCD Backlight ...............................................................................................................2-17

Advanced Setup submenu (3 of 4) ................................................................................... 2-17

Internal Temperature ................................................................................................. 2-18

Native Rate for DVI Device .........................................................................................2-18

Advanced Setup submenu (4 of 4) ................................................................................... 2-18

System Reset ...............................................................................................................2-18

System Reset Confirm .................................................................................................2-18

Exit menu ........................................................................................................................ 2-18

Additional Functions ..................................................................................................... 2-18

Top panel security lockout (button lock mode) .......................................................... 2-18

Quick select buttons ....................................................................................................... 2-20

Video output range and rate buttons .......................................................................... 2-21

Test pattern selection buttons ....................................................................................... 2-22

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

Installing the software ................................................................................................... 3-11

Downloading the VTG 400 software from the Web ................................................... 3-13

Starting the control program ........................................................................................ 3-14

Drop-down menus .......................................................................................................... 3-15

File menu ........................................................................................................................... 3-15

Video menu ....................................................................................................................... 3-15

Audio menu .......................................................................................................................3-15

Options menu .................................................................................................................... 3-16

Help menu .........................................................................................................................3-16

Video tab ......................................................................................................................... 3-16

Scan Groups screen ........................................................................................................... 3-16

............................................................................. 3-11

ii VTG 400D/400 DVI • Table of Contents

Test Patterns screen .......................................................................................................... 3-21

Settings screen ..................................................................................................................3-22

Audio tab ......................................................................................................................... 3-23

Scope-Trigger tab ............................................................................................................ 3-24

Power/Status button ....................................................................................................... 3-25

Button Lock/Status button ............................................................................................ 3-25

Using the help program ................................................................................................. 3-25

Using the Emulation Mode .............................................................................3-26

Firmware Upgrade Through the Extron Web Site ......................................... 3-28

Downloading the latest firmware to the PC ............................................................... 3-28

Uploading the firmware from the PC to the VTG 400D/400 DVI .............................. 3-28

Appendix A • Reference Materials ............................................................................... A-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-15

21. Bounce (manual toggle) ......................................................................................... A-15

22. Alternating Pixels (1 on, 1 off) ............................................................................... A-16

Frequency Sweep .................................................................................................... A-16

23. Graphics Multiburst ................................................................................................. A-16

VTG 400D/400 DVI • Table of Contents

iii

Table of Contents, cont’d

Multiburst ................................................................................................................ A-16

24. Alternating Pixels (2-dimensional) ........................................................................ A-17

Multipulse ................................................................................................................ A-17

NTSC Multipulse ............................................................................................................... A-17

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

VTG 400D/400 DVI Video Output Scan Rate Table ........................................ A-21

All trademarks mentioned in this manual are the properties of their respective owners.

iv VTG 400D/400 DVI • Table of Contents

68-786-01 Rev. C

04 09

VTG 400D/400 DVI

Chapter One

Introduction

About this Manual

About the VTG 400D/400 DVI

Other Features

Introduction

About this Manual

This manual discusses how to set up and operate the Extron VTG 400D/400 DVI programmable video test generator.

Throughout this manual the terms “VTG”, “video test generator”, and “VTG 400D/400 DVI” are used interchangeably to refer to the same products.

About the VTG 400D/400 DVI

The Extron VTG 400D and VTG 400 DVI 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 400D/400 DVI 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. A DVI-D output is included with the VTG 400 DVI.

The VTG is designed to provide a wide variety of reference signal types. A total of 113 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.

A powerful and innovative feature is the Scope-Trigger 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.

™

output (patent pending),

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. DVI-D (VTG 400 DVI) is output via a DVI-I 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 (except the VTG 400 DVI) 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 can be remotely controlled by a host

computer via an RS-232 control port utilizing Extron’s Simple Instruction Set (SIS 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 retains its configuration settings after the

video test generator has been powered off.

™

) of basic ASCII commands or through the Windows®-based

VTG 400D/400 DVI • Introduction1-2

VTG 400D/400 DVI

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

Installation and Operation

Application Example

The illustration below is one example of implementing the VTG 400D.

Extron 15 pin HD

VGA Cable

AUDIO

FREQUENCY

TRIGGER

AUDIO

SIGNAL

TYPE

LEVEL

ON/OFF

I.T.E. 1T23 LISTED

RS-232

SDI/HDSDI

A/V SETUP:

Audio Level Units

dBu

dBV mV

Freq. Sweep Speed:

1.5 sec

QUICK

SCOPE-TRIGGER

SELECT

CURSOR

SHAPE HIDE

COMPOSITE

S-VIDEO R-Y Y B-Y RGB

R G B H/HV V

VTG 400

PROGRAMMABLE VIDEO TEST GENERATOR

VIDEO

TEST

PATTERN

RANGE

RATE

SELECT

50-60Hz

100-240V 0.3A

Extron VTG 400D

Video Test Generator

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

VTG 400D/400 DVI • Installation and Operation2-2

Rear Panel Connectors and Cabling

100-240V 0.3A

50-60Hz

1 2 3 6 9 10 11 12

R G B H/HV V

COMPOSITE

S-VIDEO R-Y Y B-Y RGB

RS-232

SDI/HDSDI

TRIGGER

LISTED

1T23 I.T.E.

VTG 400D rear panel connectors

100-240V 0.3A

COMPOSITE

50-60Hz

1 2 3

RGBH/HVV

S-VIDEO R-Y Y B-Y

RS-232

RGB

DVI-D

LISTED

1T23 I.T.E.

TRIGGER

9 11 12

AUDIO

VTG 400 DVI rear panel connectors

RGB video, component video, composite video, S-video, SDI/HDSDI (VTG 400D only), and DVI-D (VTG 400 DVI only) video are output simultaneously.

AC power connector — Plug a standard IEC power cord into the connector

to connect the VTG to a 100 to 240 VAC, 50-60 Hz power source.

Composite video output connector — Composite video is output through

this BNC connector.

S-video output connector — S-video is output through this 4-pin mini DIN

connector.

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:

/HV

RGBHV output

/HV

RGsB, RsGsBs output

RGBS output

/HV

2-3VTG 400D/400 DVI • Installation and Operation

Installation and Operation

DB9 Pin Locations

Female

R-Y, Y, B-Y component video output connectors — Connect a display

device to the three female BNC connectors for component video output:

R-Y

Component video output

(R-Y, Y, B-Y)

15-pin RGB output connector — RGBHV, RGBS, RGsB, and RsGsBs are

B-Y

output through this 15-pin HD connector.

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.

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

SDI/HDSDI serial digital interface output connector (VTG 400D only) —

Connect an output device to the SDI/HDSDI component output female BNC.

DVI-I output connector (VTG 400 DVI only) — Connect an output device

to receive the DVI-D signal from the female DVI-I output connector.

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.

RCA jack (Audio output 1) — Unbalanced mono audio is output from this

female jack. See the note below.

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.

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.

VTG 400D/400 DVI • Installation and Operation2-4

Connecting Audio Outputs

The VTG has three types of audio output connectors: an RCA jack (VTG 400D only), 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-pin

Female

3-pin XLR Pin Configuration

Application Pin 1 Pin 2 Pin 3

Balanced audio (std.) ground (shield) positive (+) negative (-)

(on sending/female connector) (hot/live) (cold/return)

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.

Tip (L)

Ring (R)

Sleeve ( )

2-5VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Top Panel Features

AUDI O

SIGNAL

TYPE

RES: NTSC 720X485 FRQ:15.70kHz 60/30Hz

Checkerboard 100%

LEVEL

FREQUENCY

POWER

SIG:Pink noise FRQ:N/A

LEV:-18dBu 97.6mV

QUICK

SELECT

6 75 8

VTG 400D/400 DVI top panel features

SCOPE-TRIGGER

CURSOR

SHAPE HIDE

VIDEO

TEST

PATTERN

RANGE

RATE

SELECT

VTG 400

VIDEO & AUDIO TEST GENERATOR

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.

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

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.

Audio frequency adjustment (Frequency) — When the audio signal type

is either sine wave, square wave, or sine burst (see

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.

VTG 400D/400 DVI • Installation and Operation2-6

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.

Power — Power up or power down the VTG by holding down the Power

button for one second.

Menu — Press this button to enter the main menus and to move from menu

to menu.

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.

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.

Next — Press this button to enter a specific submenu of a selected main

menu.

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.

Video output range (Range) — Pressing this button will display the video

output range menu. See Video output range menu later in this chapter.

Video output rate (Rate) — Press the or button to select from among

113 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.

Select video settings (Select) — Press this button to accept the specified

video settings for the signal range (

LCD display and four arrow selection ( , ) buttons — View this

) and output rate ( 11 ).

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.

AUDIO SETUP: <5 of 5> Audio Mute: ON Square Wave Auto Attenuate

Press arrow selection buttons adjacent to the function option icons. See the table of Function Option Icons on the right.

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.

2-7VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Function Option Icons

Cursor movement and option selection

— Press the button next to this icon to move the cursor left or select an option at the left of the LCD. — Press the button next to this icon to move the cursor right or select an option at the right of the LCD. — Press the button next to this icon to increment or scroll up to the next selection. — Press the button next to this icon to decrement or scroll down to the previous selection.

State indication and option selection

or — This icon indicates the function is on/active. Press the button next to this icon to toggle the

OFFONOFF

or — This icon indicates the function is off/not selected. Press the button next to this icon to toggle

Option selection

or — Press the button next to this icon to select “yes” or “no”.

YES

SAVE

CANCEL

— Press the button next to this icon to invert the test pattern. — Press the button next to this icon to return the test pattern from the inverted state to the original state.

Audio Testing Features

The VTG 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.

“on” state to “off”.

the “off” state to “on”.

— Press the button next to this icon to save the current settings. — Press the button next to this icon to cancel (not save) the current settings.

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

Pink Noise

White Noise

Sine Wave

Square Wave

Frequency Sweep

Polarity test

Sine Burst

Generates a sine wave of a specified frequency that is gated on and off for fixed intervals. Used in testing the transient response of audio systems.

• The burst interval is defined by the total number of cycles (on and off) in each repeating period.

• The burst on duration is defined by the number of cycles in the interval where the sine wave is turned on.

See the burst signal example below.

Random noise that has constant energy per octave.

Used in loudspeaker testing and calibration.

Random noise that has an equal energy distribution

across all frequencies between 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 signal with 50% duty cycle and no DC offset.

The frequency can be set from 20 Hz to 5 kHz.

Varies the frequency of a sine wave signal continuously over the specified frequencies. Used to detect driver defects and mechanical sources of distortion.

Pulsed waveform (1 Hz pulse, positive-going, pulse width = 1ms, duty cycle = 0.1%) used in verifying the polarity of audio wiring.

DESCRIPTION

VTG 400D/400 DVI • Installation and Operation2-8

An example of the sine burst signal is shown in the following illustration:

Interval

= 8 Cycles

Burst On

= 5 Cycles

Burst Frequency

= 1 / Cycle

Cycle

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)

Setting the audio level

The audio level for each audio signal type is selected from a range of values using the

Audio Audio Level Range Audio Level Range Signal Format (in dBu increments) (in dBV increments)

Pink Noise -4 dBu to -72 dBu -6 dBV to -74 dBV

White Noise +6 dBu to -72 dBu +4 dBV to -74 dBV

Sine Wave +6 dBu to -72 dBu +4 dBV to -74 dBV

Square Wave +6 dBu to -72 dBu +4 dBV to -74 dBV

Frequency Sweep +6 dBu to -72 dBu +4 dBV to -74 dBV

Polarity Test -14 dBu to -72 dBu -16 dBV to -74 dBV

Sine Burst +6 dBu to -72 dBu +4 dBV to -74 dBV

or Level buttons. The following table lists the range of values.

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.

2-9VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Audio Range

20 Hz

21.2 Hz

22.4 Hz

23.6 Hz 25 Hz

26.5 Hz 28 Hz 30 Hz

31.5 Hz

33.5 Hz

35.5 Hz

37.5 Hz 40 Hz

42.5 Hz 45 Hz

47.5 Hz 50 Hz 53 Hz 56 Hz 60 Hz 63 Hz 67 Hz 71 Hz 75 Hz

80 Hz 85 Hz

90 Hz 95 Hz

100 Hz 106 Hz 112 Hz 118 Hz 125 Hz 132 Hz 140 Hz 150 Hz 160 Hz 170 Hz 180 Hz 190 Hz 200 Hz 212 Hz 224 Hz 236 Hz 250 Hz 265 Hz 280 Hz 300 Hz

315 Hz 335 Hz 355 Hz 375 Hz 400 Hz 425 Hz 450 Hz 475 Hz 500 Hz 530 Hz 560 Hz 600 Hz 630 Hz 670 Hz 710 Hz 750 Hz 800 Hz 850 Hz

900 Hz 950 Hz

1.0 kHz

1.06 kHz

1.12 kHz

1.18 kHz

1.25 kHz

1.32 kHz

1.40 kHz

1.50 kHz

1.60 kHz

1.70 kHz

1.80 kHz

1.90 kHz

2.00 kHz

2.12 kHz

2.24 kHz

2.36 kHz

2.50 kHz

2.65 kHz

2.80 kHz

3.00 kHz

3.15 kHz

3.35 kHz

3.55 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 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 (

the submenu options and to make selections. Refer to the flowcharts in this chapter and to specific sections for explanations of cursor button selections.

, ) buttons — Use these buttons to scroll through

VTG 400D/400 DVI • Installation and Operation2-10

Menu overview

The default screen appears on the LCD when the unit is first powered on, as shown here.

Power

Default menus during initial power up

If no top panel buttons are pressed within a 15-second timeout period, the following menu is displayed. Both audio and video information are displayed.

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

Default menu after 15-second timeout

The main menus are shown in the following flowchart. The main menus for the VTG 400D and VTG 400 DVI are identical. Use the Menu button to scroll between main menus.

60-564-01 Ver. 1.00

VTG 400

VIDEO TEST GENERATOR

3 sec.

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

Power

From any menu or submenu, after 15 seconds of inactivity the VTG saves all adjustment settings, and times out to the default screen.

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

AUDIO SETUP

VIDEO

SETUP

ADVANCED

SETUP

EXIT MENU

Press "NEXT" button

Main menus for the VTG

2-11VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

If you press the Menu button while a submenu is active, the next main menu becomes active. For example, the menu changes from an Audio Setup submenu (see the following menu) to the Video Setup main menu.

Audio Setup menu

The following flowchart illustrates the Audio Setup menu system. Pressing the Next button displays the audio setup submenus.

Power

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

AUDIO SETUP: <5 of 5> Audio Mute: ON Square Wave Auto Attenuate

AUDI O SETUP

OFF

AUDIO SETUP: <1 of 5> Audio Level Units:

dBV Output 2 Enable: L+R Left

AUDIO SETUP: <4 of 5> F. Sweep Format: Log Linear F. Sweep Direction: Lo->Hi Hi->Lo

dBu

Right

AUDIO SETUP: <2 of 5> Burst Interval

00001 Cycle Burst On 00001 Cycle

AUDIO SETUP: <3 of 5> F. Sweep Start Freq:

NEXTNEXT

20.0 Hz F. Sweep Stop Freq: 112 Hz

Audio setup menu

Audio Setup submenu (1 of 5)

Audio level units are specified from this submenu. The output channel(s) of Audio output 2 is (are) also specified.

Audio level units

Specify the audio level unit for the VTG to display. Choose from among the following unit types:

• dBu (default)

• dBV

Output 2 enable

Specify the audio channel(s) to be output from Audio output 2 (3.5 mm mini stereo phone jack). Specify from among the following channels:

• L+R [left and right] (default)

• Left

• Right

Audio Setup submenu (2 of 5)

The interval of the burst cycles and the amount of cycles in each burst are specified from this submenu.

Burst interval

Specify the number of cycles per burst interval (0 through 65,535 cycles).

VTG 400D/400 DVI • Installation and Operation2-12

Burst on

Specify the number of active cycles in each burst (0 through 65,535 cycles).

The number of active cycles in a burst must always be less than or equal to the total number of cycles in an interval.

Audio Setup submenu (3 of 5)

The starting and ending frequencies of the frequency sweep audio test signal are specified from this submenu.

F. Sweep Start Freq

Specify the frequency sweep start frequency (20.0 Hz through 19.0 kHz).

The start frequency can never be set greater than the stop frequency.

F. Sweep Stop Freq

Specify the frequency sweep stop frequency (21.2 Hz through 20.0 kHz).

The stop frequency can never be set lower than the start frequency.

Audio Setup submenu (4 of 5)

The format and direction of the frequency sweep audio test signal are specified from this submenu.

F. Sweep Format

• Log (default) – sweep logarithmically (more time spent in the lower

frequencies)

• Linear – sweep linearly (equal time spent in each frequency)

F. Sweep Direction

• Lo->Hi – sweep from the start frequency to the stop frequency

• Hi->Lo – sweep from the stop frequency to the start frequency

See the Audio Setup submenu (3 of 5) earlier in this chapter.

Audio Setup submenu (5 of 5)

To prevent damage to connected audio equipment, audio muting and the automatic attenuation of the square wave signal can be specified from this submenu.

Audio Mute

• ON – enable audio muting

• OFF (default) – disable audio muting

Square Wave Auto Attenuate

• ON – automatically attenuate the square wave signal to -40 dBu when

toggling through the audio signals

• OFF (default) – disable automatic attenuation of the square wave signal

2-13VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Video Setup menu

The following flowchart describes the Video Setup menu.

Power

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

VIDEO

SETUP

VIDEO SETUP: <1 of 4> RGB Sync Format

RGBHV Raster Border: ON

VIDEO SETUP: <4 of 4> RGB Color Channel Enable:

RED GREEN

BLUE

OFF

Video Setup menu

Video Setup submenu (1 of 4)

The RGB sync format and a raster border are specified from this submenu.

RGB sync format

Specify the RGB sync format.

• RGBHV (default)

• RsGsBs

• RGsB

• RGBS

VIDEO SETUP: <2 of 4> On-Screen Display: ON

VIDEO SETUP: <3 of 4> Auto Sequence Mode: ON Auto Sequence Interval: 15 seconds

OFF

Raster border

A one-pixel-wide white border around the edge of the active area can be enabled (on) or disabled (off).

• ON

• OFF (default)

Video Setup submenu (2 of 4)

The test pattern’s on-screen display can be enabled (on) or disabled (off) from this submenu.

On-Screen Display

• ON

• OFF (default)

When set ON and a new output rate is activated, the VTG displays the rate type, rate frequency, and resolution for 4 seconds. The text is identical to what is displayed on the VTG’s LCD display and appears as white text in a black box centered on the test pattern. See the following example illustration.

VTG 400D/400 DVI • Installation and Operation2-14

Res: VESA3 1024x768 FRQ: 48.40 kHz 60.00 Hz

Video Setup submenu (3 of 4)

Test pattern autosequence mode and autosequence interval are selected from this submenu. Test pattern autosequence mode specifies whether to step through the test patterns in a predetermined sequence. Test pattern autosequence interval specifies how long each test pattern in the autosequence mode will be displayed.

The predetermined sequence of test patterns is specified via RS-232 commands or the Windows-based control program. By default, all test patterns are selected for autosequence. See chapter 3, Serial Communication.

Autosequence Mode

The mode can be enabled (on) or disabled (off).

• ON

• OFF (default)

Autosequence Interval

There are 3 options for the interval:

• 15 seconds (default)

• 30 seconds

• 60 seconds

Video Setup submenu (4 of 4)

To specify particular colors in the test patterns, the individual color channels can be toggled on or off from this submenu. See the following table of possible color combinations.

RGB Color Channel Enable

Specify each color as enabled (on) or disabled (off).

• RED (default = ON)

• GREEN (default = ON)

• BLUE (default = ON)

This adjustment affects only the RGB outputs (BNCs and HD15 connector).

2-15VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Color Combinations R G B

Black Blue Green

Cyan Red Magenta Yellow White

Advanced Setup menu

The following flowchart describes the Advanced Setup menu.

off off

off off on on on on

off off

on on off off on on

off on

off on off on off on

Power

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

ADVANCED

SETUP

ADVANCED SETUP: <1 of 4> Time-out Interval:

Never timeout Screensaver Mode: Cycle

Blank

ADVANCED SETUP: <3 of 4> Internal Temperature:

-32.0F -00C

All models except the VTG 400 DVI display

NOTE

the menu above.

ADVANCED SETUP: <2 of 4> LCD Display Contrast: 038 LCD Backlight: Always On

– OR –

(see notes below)

ADVANCED SETUP: <4 of 4>

YES

SYSTEM RESET

YES

Auto

ADVANCED SETUP: <3 of 4> Internal Temperature:

-32.0F -00C Native Rate For DVI Device 1600x1200 @60 Hz

Only the VTG 400 DVI displays the

NOTE

menu above.

Unit Reset to

Factory Default

ADVANCED SETUP: <4 of 4>

YES

SYSTEM RESET

YES

CONFIRM!

Advanced Setup menu

Advanced Setup submenu (1 of 4)

The screensaver timeout interval can be specified and the screensaver mode can be set to either a blank (black)/muted screen or a cycle of test patterns from this submenu.

Time-out Interval

Specify the screensaver timeout interval:

VTG 400D/400 DVI • Installation and Operation2-16

• 5 minutes

• 10 minutes

• 15 minutes

• 30 minutes

• Never time out (default — screensaver is not activated)

The following LCD display message is updated approximately every 38 seconds starting with the timeout interval selected.

Time-out in:

00:18 minutes

After the timeout interval has has elapsed, the following LCD message is displayed.

SCREEN SAVER

ACTIV E

The timeout timer is reset whenever any VTG button is pressed.

Screensaver Mode

The screensaver mode can be set to a blank (black) screen or the mode can be set to cycle through all valid test patterns in 4-second intervals for the video type.

• Blank (default)

• Cycle

In blank screen mode, the sync remains active even while the video is muted. Refer to the Test Pattern Chart in appendix A for the table of available test patterns and their features.

Advanced Setup submenu (2 of 4)

The VTG’s LCD display features an adjustable contrast setting and a backlight.

LCD Display Contrast

• 000 through 063, select a setting while observing the LCD

LCD Backlight

The LCD backlight on the VTG can be set to remain on or to automatically turn off after 10 seconds of inactivity.

• Always On

• Auto (default)

Advanced Setup submenu (3 of 4)

The VTG’s LCD displays the internal board temperature of the VTG in degrees Celsius and degrees Fahrenheit. The native rate for a DVI device connected to the VTG 400 DVI is displayed on the LCD. This information is detected from the EDID generated by the attached DVI device.

2-17VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Internal Temperature

• -67° to +257°F (-55° to +125°C)

Native Rate for DVI Device

• The preferred resolution of the device connected to the DVI connector (VTG 400 DVI only).

Advanced Setup submenu (4 of 4)

The VTG can be reset to default settings from this submenu.

System Reset

• YES

• NO

Selecting “YES” displays a confirmation menu.

System Reset Confirm

• YES

• NO

Selecting “YES” resets the VTG to factory default settings.

A system reset does not affect any stored custom rates. Those rates are not overwritten.

Exit menu

The following flowchart describes the Exit menu. Pressing the Next button from this menu causes the VTG to return to the default screen.

Power

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

MENU MENU MENU

Exit menu

Additional Functions

The VTG 400 has several functions that are not accessible through the Menu and Next buttons.

Top panel security lockout (button lock mode)

To prevent accidental changes to settings, simultaneously press and hold the Audio Signal Type button and the Video Test Pattern up cursor ( ) button for about two seconds to enable the VTG’s button lock mode. See the following illustration.

Button lock mode locks all top panel functions. When button lock mode is active, all functions and adjustments can still be made through RS-232 control. For details on RS-232 control, see chapter 3.

To disable button lock mode, simultaneously press and hold the Audio Signal Type button and the Video Test Pattern up cursor ( seconds.

EXIT MENU

Press "NEXT" button

) button for about two

VTG 400D/400 DVI • Installation and Operation2-18

Power

VTG 400

VIDEO TEST GENERATOR

60-564-01 Ver. 1.00

3 sec.

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

Button lock mode

Button Lock Enabled!

Button Lock Disabled!

TEST

PATTERN

TEST

PATTERN

SIGNAL

TYPE

Simultaneously press both buttons for

two seconds to enable button lock mode

SIGNAL

TYPE

Simultaneously press both buttons for

two seconds to disable button lock mode

2-19VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Quick select buttons

Up to four video and/or audio settings can be saved by pressing one of the four top panel Quick Select buttons for two seconds until the Quick Select Setup menu appears. The following menu flowchart illustrates this process.

Power

VTG 400

VIDEO TEST GENERATOR

60-564-01 Ver. 1.00

3 sec.

Press any Quick Select button for 2 seconds.

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

QUICK

SELECT

Settings Saved

to Button #1

SAVE

Select SAVE

QUICK SELECT SETUP #1 Configuration to store: Video settings Save changes:

SAVE

Press either arrow selection button adjacent to the or selectors to save either the Audio settings, Video settings, or All settings (both audio and video). Press the arrow selection button adjacent to

SAVE

the selector to save the setting(s) to a Quick Select button or press the arrow selection button adjacent to the selector to cancel the operation and not save the setting(s) to a Quick Select button.

CANCEL

Select

CANCEL

Quick Select Setup menu

The audio and/or video settings are saved when the Save selector

SAVE

( approximately 15 seconds or if the Cancel selector (

) is chosen. Nothing is saved if the menu times out after

CANCEL

) is chosen.

To recall a previously saved configuration, press the associated Quick Select button that was used to save the configuration. The recalled configuration overwrites only the corresponding current settings. The following illustration is an example of the LCD screen response after recalling Quick Select button 1:

Settings Recalled

for Button #1

SAVE

VTG 400D/400 DVI • Installation and Operation2-20

Video output range and rate buttons

Pressing the Video Range button selects from among eight output range categories. Pressing the chosen output range. The output rates are displayed two at a time on the LCD. See the following illustration.

Power

VTG 400

VIDEO TEST GENERATOR

60-564-01 Ver. 1.00

and Video Rate buttons selects an output rate for the

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch

3 sec.

SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

Press the Range button to select from among the following rate types:

• PC

• CAD Workstation

• Stereographic

• Super High Res.

• 16:9 High Res.

• HDTV

• Video/Other

• Custom

PC RATES

VESA12 1280x1024

91.10kHz 85.00Hz

SXGA+ 1400x1050

63.90kHz 60.00Hz

RANGE

RATE

Use the Rate buttons to select the rate.

NOTE

Press the Select button to activate the selected rate.

SELECT

After pressing the Select button or after 15 seconds of inactivity, the VTG will return to the default menu.

Video output range and rate selection buttons

After selecting the desired rate, press the Select button to activate the selected rate.

The VTG returns to the default menu after pressing the Select button or after 15 seconds of inactivity.

2-21VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Test pattern selection buttons

Depending on the currently selected video rate, pressing the and Video Test Pattern selection buttons selects from up to 28 different video test patterns. The newly selected test pattern displays for three seconds before returning to the previous menu. See the following menu. Refer to the Test Patterns Chart in appendix A for the table of available test patterns and their features.

RES: VESA6 800x600

Power

VTG 400

VIDEO TEST GENERATOR

60-564-01 Ver. 1.00

FRQ: 48.10kHz 72.00Hz PAT: PLUGE

3 sec.

SIG: Pink noise FRQ: N/A LEV: -18 dBu 97.6mV

Press any Test Pattern button.

TEST

PATTERN

Fine Crosshatch

RES: VESA6 800x600 FRQ: 48.10kHz 72.00Hz PAT: Fine Crosshatch

3 sec.

SIG: Pink noise FRQ: N/A LEV: -18 dBu 97.6mV

Test pattern selection buttons

Invert/special features functions

Certain test patterns, as indicated in the “Invert/Special” column of the Test Patterns Chart, can be inverted, i.e., black becomes white and white becomes black, by pressing the arrow selection button adjacent to the invert symbol the LCD screen. See the following diagram.

RES: VESA6 800x600

Power

VTG 400

VIDEO TEST GENERATOR

60-564-01 Ver. 1.00

FRQ: 48.10kHz 72.00Hz PAT: Bounce (Manual Toggle)

3 sec.

SIG: Pink noise FRQ: N/A LEV: -18 dBu 97.6mV

Press the invert button to activate/deactivate the Invert/Special functions of specific test patterns.

The following test patterns feature the invert function:

• Circles

• Safe area

• 16:9 crop

• 4:3 crop

• Rectangle/square crosshairs

• 4x4 crosshatch

• Coarse crosshatch

• Fine crosshatch

• Ramp

• Checkerboard

• H pattern

VTG 400D/400 DVI • Installation and Operation2-22

The following test patterns have a special feature function using the invert button:

• SMPTE Bars — This pattern toggles blue mode on and off.

• Bounce (manual toggle) — Toggles the center window on and off. This pattern does not invert the entire pattern.

• Contrast transfer function — This test pattern toggles the vertical lines between always on and blinking.

Refer to the Test Patterns in Detail section in appendix A of this manual.

Adjusting the video level of test patterns

From the default cycle menu, the video level of specific test patterns can be adjusted in 1% increments (1 IRE) from 0 through 100% (0 to 100 IRE). Currently, there are six test patterns that support this adjustable level feature.

• Window (variable level)*

• Flat field*

• Flat field with targets*

• Checkerboard*

• Contrast transfer function

• Hum bar detect

* These test patterns have globally adjustable video levels, i.e., a change to one results in an identical change to all of the others.

Adjusting the level of the contrast transfer function test pattern results in changes to the contrast ratio percentage rather than the video level. The hum bar detect and contrast transfer function levels are saved independently, so changes to other patterns’ video levels do not affect these two patterns.

Use the adjacent arrow selection buttons to adjust the video level, as shown here in the example display.

RES: VESA8 1024x768 FRQ: 60.00kHz 75.00Hz Checkerboard 0% SIG: Freq. Sweep SPD:9.0 sec LEV: -09 dBu 275mV

Refer to the Test Pattern Chart in appendix A for the table of available test patterns and their features.

Scope-Trigger buttons

A unique feature of the VTG 400 is the ability to locate a trigger point at a specific pixel location on an oscilloscope’s signal display.

When a Scope Trigger button is pressed, the LCD displays the Scope-Trigger menu, as shown in the following figure. The cursor’s location is given in coordinates (x, y) relative to the active area, as well as the total area of the screen display. The range of the coordinates is dependent on the scan rates.

Connect the VTG 400’s trigger output to the external trigger input on the oscilloscope. The trigger on the scope should be set for rising edge (

) slope.

2-23VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

Press the Scope Trigger Cursor buttons ( , , , ) to position the oscilloscope’s cursor on a line (y-axis) of video and on a specific pixel (x-axis) of that line. This x-y coodinate location is the trigger point. Use the and buttons to position the cursor along the x-axis, and use the along the y-axis.

Positioning the cursor outside of the scan rate limits for the active area results in an “N/A” display for the coordinate value and the cursor is no longer visible in the display, but the scope trigger is still active.

Power

VTG 400

VIDEO TEST GENERATOR

60-564-01 Ver. 0.00

SCOPE — TRIGGER Position: Active (0004,0004) Total (0300,0039) Cursor: Invisible On Screen Shape = Single Pixel

3 sec.

and buttons to position the cursor

RES: VGA 640x480 FRQ: 31.50kHz 60.00Hz PAT: Fine Crosshatch SIG: Pink noise FRQ: N/A LEV: -10 dBu 245mV

Press any Scope Trigger button.

SCOPE-TRIGGER

CURSOR

SHAPE HIDE??

Scope trigger menu

Press the Scope Trigger Shape button to toggle the on-screen cursor between a crosshair (useful for locating the cursor on the display screen) and single pixel (useful for locating the cursor on the oscilloscope screen).

Press the Scope Trigger Hide button to turn the cursor on or off.

An example of a crosshair trigger point on a flat field test pattern is shown in the following figure.

When doing a screen capture, hiding the cursor is recommended. A hidden cursor can still be used to change the position of the trigger point.

VTG 400D/400 DVI • Installation and Operation2-24

vertical

sync

pulse

vertical

porch

back

DISPLAY SCREEN

Total Video Area

Note: The gray area alone equals blanking and is not visible on the screen.

crosshairs cursor at trigger point

active

video

lines

vertical front porch

horizontal

sync

pulse

sync

pulse time

horizontal back porch

Active Video Area (visible on screen) with Flat Field Test Pattern

active video pixels

OSCILLOSCOPE SCREEN

trigger point using

crosshairs cursor

horizontal front porch

back

porch

active video time

time

horizontal line period

Note

The combination of front porch, back porch, and sync times equals blanking

Oscilloscope trigger point example

front

porch

time

2-25VTG 400D/400 DVI • Installation and Operation

Installation and Operation, cont’d

VTG 400D/400 DVI • Installation and Operation2-26

VTG 400D/400 DVI

Chapter Three

Serial Communication

RS-232 Programmer’s Guide

Control Software for Windows

Using the Emulation Mode

Firmware Upgrade Through the Extron Web Site

Serial Communication

DB9 Pin Locations

Female

The VTG can be remotely controlled via a host computer or other device (such as a control system) attached to the rear panel RS-232 connector. The control device (host) can use either the Extron Simple Instruction Set (SIS™) commands or the graphical control program for Windows

The VTG uses a protocol of 9600 baud, 1 stop bit, no parity, and no flow control.

The rear panel RS-232 9-pin D 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

RS-232 Programmer’s Guide

Host-to-VTG communications

SIS commands consist of one or more characters per field. No special characters are required to begin or end a command sequence. When the VTG determines that a command is valid, it executes the command and sends a response to the host device. All responses from the video test generator to the host end with a carriage return and a line feed (CR/LF = ), which signals the end of the response character string. A string is one or more characters.

It is also possible to send several SIS commands back-to-back in sequence.

Video test generator-initiated messages

When a local event such as a top panel selection or adjustment takes place, the VTG responds by sending a message to the host. No response is required from the host. An example of a video test generator-initiated message is listed here (underlined).

Error responses

When the video test generator receives a valid SIS command, it executes the command and sends a response to the host device. If the VTG is unable to execute the command because the command is invalid or it contains invalid parameters, it returns an error response to the host.

The error response codes and their descriptions are as follows:

E05 – VTG 400 power is off and an attempt has been made to send it a command. E07 – An attempt to select a nonexistent test pattern number has been made. E08 – An attempt to select a nonexistent scan rate number has been made. E10 – Invalid command E11 – Invalid preset # E13 – Invalid value (out of range) E23 – Checksum error

VTG 400D/400 DVI • Serial Communication3-2

Using the command/response tables

The command/response tables in this chapter list valid command ASCII codes, the video test generator’s responses to the host, and a description of the command’s function or the results of executing the command.

The ASCII to HEX conversion table below is for use with the command/response tables.

ASCII to HEX Conversion Table

•

The command/response tables use symbols (defined below) to represent variables.

Symbol definitions

= CR/LF (carriage return/line feed) (hex 0D 0A)

= CR (carriage return)

• = Space

= Escape key

Esc

= Controller firmware version (listed to two decimal

places, i.e. x.xx)

?.?? = Invalid firmware / firmware not loaded

x.xx* = Currently active firmware

= Test pattern number ( 1 or 2 digits)

= Scan rate number (1 to 3 digits)

= Scan rate description (32 characters)

= Timeout interval (0 – 4)

0 = Never time out 1 = 5 minutes 2 = 10 minutes 3 = 15 minutes 4 = 30 minutes

= Test pattern auto-sequence interval (1 – 3)

1 = 15 seconds 2 = 30 seconds 3 = 1 minute

= Audio test signal type

1 = Pink noise 2 = White noise 3 = Sine wave 4 = Square wave 5 = Frequency sweep 6 = Polarity test 7 = Sine burst

= Audio level units

1 = dBu 2 = dBV

= Audio level (positive)

Pink noise: N/A Polarity test: N/A All other signal types: 0 to +6 dBu (0 dBV to +4 dBV)

X10

= Audio level (negative)

Pink noise: -72 dBu to -4 dBu (-74 dBV to -6 dBV) Polarity test: -72 dBu to -14 dBu (-74 dBV to -16 dBV) All other signal types: -72 dBu to 0 dBu (-74 dBV to 0 dBV)

X11

= Audio level (positive/negative) (status only)

Pink noise: -72 dBu to -4 dBu (-74 dBV to -6 dBV) Polarity test: -72 dBu to -14 dBu (-74 dBV to -16 dBV) All other signal types: -72 dBu to +6 dBu (-74 dBV to +4 dBV)

3-3VTG 400D/400 DVI • Serial Communication

Serial Communication

= Audio tone frequency (1 - 121) [20 Hz to 20 kHz in 1/12 octave steps]

X14

1 = 20 Hz 2 = 21.2 Hz 3 = 22.4 Hz 4 = 23.6 Hz 5 = 25 Hz 6 = 26.5 Hz 7 = 28 Hz 8 = 30 Hz 9 = 31.5 Hz 10 = 33.5 Hz 11 = 35.5 Hz 12 = 37.5 Hz 13 = 40 Hz 14 = 42.5 Hz 15 = 45 Hz 16 = 47.5 Hz 17 = 50 Hz 18 = 53 Hz 19 = 56 Hz 20 = 60 Hz 21 = 63 Hz 22 = 67 Hz 23 = 71 Hz 24 = 75 Hz

25 = 80 Hz 26 = 85 Hz 27 = 90 Hz 28 = 95 Hz 29 = 100 Hz 30 = 106 Hz 31 = 112 Hz 32 = 118 Hz 33 = 125 Hz 34 = 132 Hz 35 = 140 Hz 36 = 150 Hz 37 = 160 Hz 38 = 170 Hz 39 = 180 Hz 40 = 190 Hz 41 = 200 Hz 42 = 212 Hz 43 = 224 Hz 44 = 236 Hz 45 = 250 Hz 46 = 265 Hz 47 = 280 Hz 48 = 300 Hz

Audio Range

49 = 315 Hz 50 = 335 Hz 51 = 355 Hz 52 = 375 Hz 53 = 400 Hz 54 = 425 Hz 55 = 450 Hz 56 = 475 Hz 57 = 500 Hz 58 = 530 Hz 59 = 560 Hz 60 = 600 Hz 61 = 630 Hz 62 = 670 Hz 63 = 710 Hz 64 = 750 Hz 65 = 800 Hz 66 = 850 Hz 67 = 900 Hz 68 = 950 Hz 69 = 1.0 kHz 70 = 1.06 kHz 71 = 1.12 kHz 72 = 1.18 kHz

73 = 1.25 kHz 74 = 1.32 kHz 75 = 1.40 kHz 76 = 1.50 kHz 77 = 1.60 kHz 78 = 1.70 kHz 79 = 1.80 kHz 80 = 1.90 kHz 81 = 2.00 kHz 82 = 2.12 kHz 83 = 2.24 kHz 84 = 2.36 kHz 85 = 2.50 kHz 86 = 2.65 kHz 87 = 2.80 kHz 88 = 3.00 kHz 89 = 3.15 kHz

90 = 3.35 kHz 91 = 3.55 kHz 92 = 3.75 kHz 93 = 4.00 kHz 94 = 4.25 kHz 95 = 4.50 kHz 96 = 4.75 kHz

97 = 5.00 kHz 98 = 5.30 kHz 99 = 5.60 kHz

100 = 6.00 kHz 101 = 6.30 kHz 102 = 6.70 kHz 103 = 7.10 kHz 104 = 7.50 kHz 105 = 8.00 kHz 106 = 8.50 kHz 107 = 9.00 kHz 108 = 9.50 kHz 109 = 10.00 kHz 110 = 10.60 kHz 111 = 11.20 kHz 112 = 11.80 kHz 113 = 12.50 kHz 114 = 13.20 kHz 115 = 14.00 kHz 116 = 15.00 kHz 117 = 16.00 kHz 118 = 17.00 kHz 119 = 18.00 kHz 120 = 19.00 kHz 121 = 20.00 kHz

Square wave test signal uses frequencies 1 through 97 only.

= Audio sweep speed (1 through 15)

X15

1 = 1 sec 2 = 2 sec 3 = 3 sec 4 = 4 sec 5 = 5 sec

= Scope Trigger cursor horizontal position (relative to active area)

X16

X17

X18

X19

X20

X21

X22

X23

Measured from first active video pixel in one-pixel increments.

= Scope Trigger cursor vertical position (relative to active area)

Measured from first line of active video in one-line increments.

= Scope Trigger cursor horizontal position (relative to total area)

Measured from beginning of the horizontal sync pulse in one-pixel increments.

= Scope Trigger cursor vertical position (relative to total area)

Measured from the first line of the vertical sync pulse in one-line increments.

= Scope Trigger cursor shape (1 through 2)

1 = Crosshair (default) 2 = Single pixel

= Quick Select Preset number (1 through 4)

= Quick Select Preset type (1 through 3)

1 = video settings 2 = audio settings 3 = all settings

= Color enable type (0 - 7)

6 = 6 sec 7 = 7 sec 8 = 8 sec 9 = 9 sec 10 = 10 sec

11 = 20 sec 12 = 30 sec 13 = 60 sec 14 = 90 sec 15 = 120 sec

0 = black 1 = blue 2 = green 3 = cyan 4 = red

5 = magenta 6 = yellow 7 = white

R = off R = off

R = off R = off R = on R = on R = on R = on

G = off G = off

G = on G = on G = off G = off G = on G = on

B = off B = on

B = off B = on B = off B = on B = off B = on

VTG 400D/400 DVI • Serial Communication3-4

= Video scan rate group (1 - 7, 99)

X24

1 = PC (default) 2 = CAD workstations 3 = stereographics

6 = HDTV 7 = video

99 = custom 4 = super high resolution 5 = 16:9 high resolution

X25

= Scan rate group count (1 through 99)

X26

= Scan rate group name (21 characters)

X27

= Test pattern count (1 through 99)

X28

= Test pattern name (20 characters)

= RGB sync format

X29

1 = RGBHV (default) 2 = RGBS 3 = RGsB 4 = RsGsBs

= Firmware partition

X30

1 = factory microcontroller firmware 2 = factory FPGA firmware 3 = updated microcontroller firmware 4 = updated FPGA firmware

= 3.5 mm audio connector output channels

X32

1 = both left and right (default) 2 = left only 3 = right only

= Test pattern video level (0 through 100) (in 1% /1 IRE increments)

X33

= Screen saver mode

X34

0 = blank screen (default) 1 = test pattern cycle

= Firmware build number (four digits, 0001 through 9999)

X35

= Burst interval/burst on duration (1 through 65535 cycles)

X36

= Frequency sweep mode

X37

0 = logarithmic sweep (default) 1 = linear sweep

= Frequency sweep direction

X38

0 = low to high (default) 1 = high to low

= Internal temperature in degrees Fahrenheit

X75

= Internal temperature in degrees Celsius

X76

3-5VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

X35

X24

X33

X11

X21

X22

Command/response table for SIS commands

Command ASCII Command Response Additional description

(host to VTG) (VTG to host)

Power

Turn power on 1P /1p Pwr 1 Turn VTG power on.

Turn power off 0P/ 0 p Pwr 0

Turn VTG power off.

View power status P/ p 1 /0 = on/off Show power status.

Front panel security lockout (executive mode)

Enable executive mode 1X/1x Exe 1 Enable executive mode.

Disable executive mode 0X/0x Exe 0 Disable executive mode.

View executive mode status X/x 1

Example:X0

/0 = on/off View executive mode status.

Executive mode is disabled.

Query firmware version

General query Q/q

Query all firmware 0Q/0q

Query specific firmware

X30

View build number *Q/*q

X30

Show the controller firmware

version.

X1,X1,X1,X1

Show the firmware versions for

all partitions.

Show the firmware version for

partition

Show the firmware build

X30

number.

Request part number

Request VTG 400 part number N/n 60-564-01 Show the VTG 400’s part #.

Request VTG 400D part number N/n 60-564-02 Show the VTG 400D’s part #.

Request VTG 400 DVI part # N/n 60-564-03 Show the VTG 400 DVI’s

part #.

Request information

Display information I/i Pat X2 • Rte X3 • Show test pattern, output rate,

Grp

• Tmo X5 • scan rate group, timeout

Asq X6 interval, auto-sequence

interval.

View variable pattern video levels 1i/1I X2 *

... X2 *

X33

View the list of video levels for

all variable-level test patterns (excludes fixed-level patterns).

View all audio signal levels 2i/2I +/-

+/-

dBu (dBV) •... View the list of audio levels for

dBu (dBV) all signal types (“dBu” or

“dBV” expressed based on setting).

View “invertable” pattern list 3i/3I X2 •... X2 View the list of test patterns

that support “invert” or special purpose functions.

View internal temperature

View internal temperature 2 0S

X75

F••

X76

C Show the temperature in

degrees Fahrenheit & Celsius.

Quick select preset

X21

Recall configuration

Save configuration

View preset type

X21

. Rpr

X22

X21

, Spr

X21

* .

Recall preset

X21

Save settings specified for

to preset

X22

Show Quick Select Preset type

for preset

X22

VTG 400D/400 DVI • Serial Communication3-6

Command/response table for SIS commands (continued)

Command ASCII Command Response Additional description

(host to VTG) (VTG to host)

List rates

All rates L/l X4 ... X4 List VTG scan rates (all rates

returned).

X24

By range

X24

l X4 ... X4 List scan rates for range

X24

Set test pattern

Specific pattern

Increment up +J/+j Tst

Increment down -J/-j Tst

View J/j

J/X2 j Tst X2 Select pattern X2.

Select next higher pattern.

Select next lower pattern.

View current setting.

Invert test pattern / Special function (blue mode for SMPTE color bars and pause for CTF)

Invert current test pattern 1*21# Inv1 Invert or activate the special

function for the current test pattern.

Return to normal test pattern 0*21# Inv0 Disables special function for

selected pattern.

View status 21# 1 /0 = on/off View current setting.

Set output rate

Specific value

X24

= Rte X3 *

Increment up += Rte X3 *

Increment down -= Rte X3 *

View = X3 *

X24

Select rate X3 from range

X24

Select next higher rate in

current range.

X24

Select next lower rate in

current range.

X24

View current setting.

X24

Set screensaver timeout interval

Specific value

Increment up +1 # Tmo X5 Select next higher interval.

Increment down -1# Tmo X5 Select next lower interval.

View 1# X5 View current setting.

*1# Tmo X5 Set timeout interval.

Set test pattern autosequence

Specific value

Increment up +2# Asq X6 Select next higher interval.

Increment down -2# Asq X6 Select next lower interval.

View 2# X6 View current setting.

*2# Asq X6 Set autosequence interval.

Set audio signal type

Set signal type

View 3 #

*3# Ast X7 Select audio signal type X7.

View current setting.

Set audio tone frequency (applies to sine, square wave, and burst signals only)

Specific value

X14

*4# Afq

Increment up +4# Afq

Increment down -4# Afq

View 4#

X14

Set tone frequency to

X14

Select next higher frequency.

X14

Select next lower frequency.

X14

View current setting.

Set audio sweep speed (applies to audio sweep signal only)

Set sweep speed

X15

*5# Sws

X15

Set audio sweep speed to

(Continued)

X14

X15

3-7VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

X14

X32

X36

X37

Command/response table for SIS commands (continued)

Command ASCII Command Response Additional description

(host to VTG) (VTG to host)

View 5 #

X15

View current setting.

Set audio level scale

View 16 #

*16# Scl X8 Set the VTG’s level scale to

View current setting.

Set audio output level

Set audio level to + value

Set audio level to - value Increment up +G/+g Lev = ± Increment down -G/-g Lev = ±

View G/g

G Lev = + X9 Set audio level to +X9.

X10

g Lev = -

X11

X10

Set audio level to -

X11

Increase audio level 1 dB.

X11

Decrease audio level 1 dB.

View current setting.

X10

Mute audio outputs

Enable mute 1Z Amt1 Mute audio for all outputs.

Disable mute 0Z Amt0 Unmute audio for all outputs.

View status Z 1 /0 = on/off Show audio mute status.

Set start and stop frequencies (frequency sweep)

X14

Frequency sweep

X14

View 12 #

*12# Sfq

X14

Set the start and stop

frequencies for the frequency sweep to be between these two frequencies. The first value must be lower than (never equal to) the second value. Default is 100 Hz to 10 kHz (29 * 109).

View the start and stop

frequencies.

Select 3.5 mm audio output channels

Select channels

View 14 #

X32

*14# Och

Set burst signal interval (cycles)

Set

View 22 #

X36

*22# Bin

Set burst on duration (cycles)

Set

View 23 #

X36

*23# Bon

Set frequency sweep mode

Set

View 24 #

X37

*24# Smd

VTG 400D/400 DVI • Serial Communication3-8

Select the 3.5 mm stereo

output connector channels to enable (L + R, L, R).

X32

Show which 3.5 mm audio

channels are enabled.

Set the burst signal interval to

X36

cycles.

X36

View the burst signal interval.

Set the burst on duration to

X36

cycles.

X36

View the burst on duration.

Set the frequency sweep mode.

X37

View the frequency sweep

mode.

Command/response table for SIS commands (continued)

X38

X16

X18

X20

X23

X29

Command ASCII Command Response Additional description

(host to VTG) (VTG to host)

Set frequency sweep direction

Set

X38

View 25 #

*25# Sdr

X38

Set the frequency sweep

direction.

View the frequency sweep

direction.

Set Scope Trigger cursor position

X16

Set cursor to specific coordinates

X17

*6# Cpa

(relative to active area) on line

X16

X17

Set cursor position to pixel

X17

(relative to active

X16

area of the screen).

X18

Set cursor to specific coordinates

X19

*7# Cpt

(relative to total area) on line

X18

X19

Set cursor position to pixel

X19

(relative to total

X18

area of the screen).

View position 6 #

X17

•

View cursor position (relative

to active area).

View position 7 #

X19

•

View cursor position (relative

to total area).

Set Scope Trigger cursor type

Set cursor type

View current type 8 #

X20

*8# Cty

X20

Set cursor type.

View cursor type.

Hide/reveal Scope Trigger cursor

Hide cursor 0*9# Cur00 Hide cursor.

Reveal cursor 1*9# Cur01 Reveal cursor.

View status 9# 00 (hidden) View status.

01 (visible)

Set color channel enable

Set color type

X23

View current type 1 0 #

*10# Col

X23

Set color type to

X23

View current color type.

Set RGB sync format

Set sync format

X29

View 13 #

*13# Syf

X29

Set the RGB sync format.

View current setting.

Adjust test pattern video level (applies to flat field, targets, checkerboard, window, CTF, and hum bar patterns only)

Specific value

X33

*15# Vlv

Increment +15# Vlv

Decrement -15# Vlv

View 15#

X33

Set the video level of the

currently selected test pattern to a specific level.

X33

Select next higher level.

X33

Select next lower level.

X33

View current setting.

Test pattern auto sequence mode

Enable 1*11# Tas01 Turn auto sequence mode on.

Disable 0*11# Tas00 Turn auto sequence mode off.

View status 11# 01 /00 = on/off View current mode status.

3-9VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

X34

Command/response table for SIS commands (continued)

Command ASCII Command Response Additional description

(host to VTG) (VTG to host)

Enable/disable patterns for test pattern autosequence mode

Enable pattern 1* X2 *17# Pas01* X2 Enable test pattern for

autosequence mode.

Disable pattern 0*

*17# Pas00* X2 Disable test pattern for

autosequence mode.

View pattern list 1 7 #

• X2 •... X2 • X2 List all test patterns that have been enabled for autosequence

mode.

On-screen display

Enable 1*18# Osd1 Enable the on-screen display.

Disable 0*18# Osd0 Disable the on-screen display.

View status 18# 1 /0 = on/off View the current status.

Raster border

Enable 1*19# Ras1 Enable the raster border.

Disable 0*19# Ras0 Disable the raster border.

View status 19# 1 /0 = on/off View the current status.

Set screen saver type

Set

View 20 #

X34

*20# Sst

Set the screen saver type.

X34

View the screen saver type.

Scan rate group count

View group count 5 0 #

X25

View the total number of scan

rate groups.

Scan rate group name

Get scan rate group name

X24

*51#

Test pattern count

View test pattern count 5 2 #

Test pattern name

Get test pattern name

Get test pattern name list 53 #

*53#

Zap (reset to default settings)

Total reset

Reset audio

Esc

zXXX Zpx Reset everything: all settings

Esc

zA Zpa Reset audio settings to factory

X26

View the name of scan rate

X27

View the total number of test

group

X24

patterns.

X28

View the name of test pattern

...

X28

View the list of all test pattern

X28

names for the currently selected scan rate.

and adjustments are reset to the factory default (rate memory is left intact).

defaults.

VTG 400D/400 DVI • Serial Communication3-10

Control Software for Windows

The included Extron VTG 400/400D/400 DVI Control Program for Windows offers another way to control the VTG via RS-232 connection in addition to the Simple Instruction Set commands. The control program’s graphical interface includes the same functions as those on the video test generator’s top panel and some additional features that are only available through the Windows-based software.

The control software is compatible with Windows 98, Windows NT, Windows 2000, and Windows XP. VTG 400/400D/400 DVI Control Program updates can be downloaded from the Extron Web site: http://www.extron.com.

Installing the software

The control program is contained on a disk that is delivered with your VTG. To use the software, you must install the program on your PC. Follow these steps:

1. Insert the disk into your disk drive. The disk should start automatically. If it does not, open your Windows Explorer and double-click LAUNCH.EXE on the disk drive to start it.

2. On the Software Products Disk screen (see below), click the Software button.

Link to the installation software on the VTG 400/400D/400 DVI disk

3-11VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

3. In the table on the Control Software screen, scroll to locate the VTG 400/400D, and click the Install link in the far right column.

4. On the File Download window that appears, click Run to begin installing the program.

If you want to save the installation file (VTG400SW1xn.exe) to your desktop to run later, click Save instead of Run. On the Save As window, save the setup file to the desired location on your PC. When you are ready to install the software, double-click on the VTG400SW1xn.exe icon, click Run on the Security prompt, and restart the procedure at step 4.

5. Another Security prompt appears. Click Run on this window to continue with the installation.

6. Follow the instructions on the InstallShield Wizard screens to complete the program installation.

By default the installation creates a folder called “VTG400” in the following location on your computer:

c:\Program Files\Extron\VTG400

If there is no Extron folder in your Program Files folder, the installation program creates it.

VTG 400D/400 DVI • Serial Communication3-12

7. When the installation is complete, close the Software products screen. You can now start the Windows-based control program.

Downloading the VTG 400 software from the Web

The VTG 400 Windows-based control program is also available on the Extron Web site at www.extron.com. From this site, you can also download updates to the VTG 400 software as they become available.

To access the software on the Web,

1. Open the Extron Web page, and select the Download tab.

2. On the Download Center screen, click the Control Software button (shown at right). A Control

Software screen is displayed, containing a list of control software products.

3. In one of the linked alphabets displayed across the top and bottom of the screen, click V.

4. On the “V” software products page, scroll to locate the VTG 400/400D, and click the Download link at the far right.

5. On the next screen, fill in the required information.

6. Click the Download VTG400SW1xn.exe button.

7. On the File Download - Security Warning window that appears, click Run

to begin downloading the installer file.

If you want to save the installation file (VTG400SW1xn.exe) to your computer hard drive to run later, click Save. On the Save As window that opens, save the setup file to the desired location. When you are ready to install the software, double-click on the VTG400SW1xn.exe icon, and follow the instructions.

8. On the second security prompt window that opens, click Run again to start the installation process.

9. Follow the instructions on the InstallShield Wizard screens to complete the software program installation. By default the installation creates a folder called “VTG400” in the following location on the computer:

c:\Program Files\Extron\VTG400

If there is no Extron folder in your program Files folder, the installation program creates it.

3-13VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

Starting the control program

Many items found in the VTG 400 Control Program are also accessible via top panel controls and the LCD menus described in chapter 2. Refer to chapter 2 for details on features and settings. The VTG 400 Help Program provides information on settings and on how to use the control program itself.

Some features, including the miscellaneous options, are only available via this control program. These features are described in the sections of this chapter that correspond to the parts of the control program where the features are found.

1. To run the control program, double-click on the VTG 400 Control Program icon in the Extron Electronics group or folder. The Comm Port Selection dialog box appears on the screen. From the “Connect Using” drop-down list box, select RS-232 serial port.

The VTG Control Program may also be run using previously saved configuration files generated by the Control Program by selecting Emulation Mode. See Using the emulation mode, later in this chapter.

2. Click on the COMM port that is connected to the VTG’s RS-232 port. The Extron VTG Control Program window appears, as shown in the following illustration. The top menu bar consists of five drop-down menus:

• File menu

• Video menu

• Audio menu

• Options menu

• Help menu

The Video menu appears only when the vertical Video tab is selected.

There are three vertical tabs available:

• Video tab

• Audio tab

• Scope-Trigger tab

The Video screen, shown below, is the default window when the Control Program opens.

VTG 400D/400 DVI • Serial Communication3-14

Drop-down menus

File menu

The File menu features six functions: New Connection, Save Configuration, Restore Configuration, Update Firmware, System Reset, and Exit. See the

illustration below.

• Reselect a COMM port using New Connection.

• Save Configuration saves the current configuration settings to a *.vtg file.

• Restore Configuration retrieves configuration information from a previously saved *.vtg file.

• System Reset resets the VTG to factory default configuration settings.

• Update Firmware loads the VTG with firmware from a *.bin file.

• Exit terminates the Windows control program.

A system reset does not affect any stored Custom Rates.

Video menu

The Video menu features seven functions: Set As Current, Add, View, Copy, Delete, Import, and Export. See the following illustration.

• Set As Current sets the selected scan rate as the current scan rate.

• The Add command presents a configuration window to create a new custom scan rate.

• The View command displays the current scan rate’s configuration profile.

• The Copy command copies the selected scan rate to the Custom rates folder.

• The Delete command deletes the selected custom scan rate from the Custom rates folder.

• The Import command imports (retrieves) scan rates from a file to the Custom rates folder.

• The Export command exports (saves) scan rates to a file.

Audio menu

The Audio menu features the Restore Factory Audio Settings command and the Audio Mute command. See the illustration below.

3-15VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

• The Restore Factory Audio Settings command sets all the audio settings to factory default.

• The Audio Mute command mutes all audio outputs.

Options menu

The Options menu features six functions: On Screen Display, Auto-Sequence Mode, Auto Sequence Interval, Raster Border, Screen Saver Mode, and Screen Saver Interval. See the illustration below.

• On Screen Display sets the output display on or off.

• The Auto Sequence Mode command allows test patterns to be displayed in a predetermined sequence and can be set on or off.

• The Auto Sequence Interval command specifies the duration each test pattern is displayed.

• The Raster Border command sets the raster border around a display’s active area as either on or off.

• The Screen Saver Mode can set the screen saver to blank (black screen) or cycle. The cycle option cycles through all valid test test patterns for a given scan rate.

• The Screen Saver Interval command sets the screen saver timeout interval to 5 minutes, 10 minutes, 15 minutes, 30 minutes, or never time out.

Help menu

The Help menu allows you to access a help file.

Video tab

The Video tab screen features three main categories: Scan Groups, Test Patterns, and Settings.

Scan Groups screen

Select the desired video format group from the Scan Groups screen, then choose the scan rate. Activate the chosen rate by double-clicking on the rate or by clicking the Set As Current button.

VTG 400D/400 DVI • Serial Communication3-16

Add button — Clicking this button allows you to add a new scan rate to the

Custom Rates scan group. See the following screen illustration.

The Custom Rates scan group is the only group in which scan rates can be added, deleted, or modified. All other scan rate groups remain static, although they can be copied (see the Copy button description later in this chapter.

3-17VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

Enter the appropriate information in the above screen, including the horizontal and vertical active video information, rate name and resolution. Select the Apply button to add the new rate.

The VTG 400 DVI only outputs custom rates with a pixel clock of less than 165 MHz

Click the Print button to print the screen image. The information is sent to Internet Explorer where it can be viewed and printed.

View button — Selecting this button allows you to view the selected rate’s

details. If the selected rate is from the Custom Rates group, the values can be edited and applied. See the following screen example.

VTG 400D/400 DVI • Serial Communication3-18

Edit the appropriate information in the above screen. Click the Apply button to save the changes made.

Select the Print button to print the screen.

Import button — Selecting this button allows you to import scan rates to the

Custom Rates scan group. See the following screen display. A previously saved file of defined scan rates must first be opened via the Load File button (see the following Export button description), and a scan rate selected.

After selecting the previously saved *.rte file, open that file and click on the desired rate(s).

The Select radio button selects all the rates in the file, and the De-select radio button deselects all the rates.

3-19VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

• The Import File Count is the number of rates in the imported file.

• The Max. Capacity is the maximum number of Custom rates that theVTG can store.

• The Total Selected is the number of rates selected in the imported file.

• Used Memory is the number of rates in the Custom Rates folder.

• Available Memory is the number of rates that can still be imported to the Custom Rates folder.

• Select Load File to select another *.rte file.

• Select Ok to import the selected scan rate(s).

• Select Delete to delete the selected scan rate(s) from the *.rte file.

• Select Close to close the current window.

Export button — Selecting this button allows you to export or save a scan rate to

an export scan rate file. See the following screen example. The export file of saved rates can later be used to add rates to the Custom Rates folder via the previously mentioned Import button.

Copy button — Click this button to copy an existing scan rate(s) to the Custom

Rates folder.

VTG 400D/400 DVI • Serial Communication3-20

Delete button — Click this button to delete an existing scan rate(s) from the

Custom Rates folder.

Set As Current button — Click this button to set the selected scan rate as the

current scan rate.

RGB Sync radio buttons — Click one of these radio buttons to select the desired

RGB sync: RGBHV, RGBS, RGsB, or RsGsBs.

RGB Color Enable check boxes — Click these to enable the desired color(s): Red,

Green, or Blue.

This affects the RGB outputs only.

Select Rates radio buttons — Click De-select or Select to deselect or select all

rates in the current group.

Print button — Click this button to print the selected scan rate(s) using Internet

Explorer. See the following screen sample.

Test Patterns screen

The Test Patterns screen, shown in the following illustration, allows you to select and activate a test pattern. A test pattern can also be inverted (black becomes white and vice versa) from this screen.

Test patterns can also be automatically displayed sequentially at set intervals by selecting the Auto-Sequence mode. A test pattern may be removed from (disabled) or added to (enabled) the auto sequence list by right-clicking on the test pattern and choosing the desired option.

3-21VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

Auto-Sequence Mode check box — Enables/disables the Auto-sequence mode.

Select All Patterns check box — Enables/disables all available test

patterns for use in display or Auto-sequence mode.

Auto-Sequence Interval drop-down box — Sets the Auto-sequence

interval to 15 seconds, 30 seconds, or 1 minute.

Invert Pattern button — Inverts (black-to-white/white-to-black) the selected test

pattern, if the invert pattern is supported for that pattern.

Settings screen

The Settings screen, shown below, features several options:

Screen Display check boxes — Select the On Screen Display check box to

display the rate type, rate frequency and resolution on screen for four seconds. Select the Raster Border check box to display a black border around the display image. The border is useful when centering and sizing the image.

VTG 400D/400 DVI • Serial Communication3-22

Screen Saver — Select the Blank radio button to display a black screen.

Select the Cycle radio button to cycle through valid test patterns for a specific

Advanced — Reset the VTG to factory default settings by clicking the System

Quick Select Presets — Up to four sets of configuration settings – video, audio,

Audio tab

The Audio tab screen features seven audio signal types:

• pink noise

• white noise

• sine wave

• square wave

• frequency sweep

• polarity

• sine burst

While the screen is blank, the horizontal and vertical sync are still active.

video output (see the Test Patterns Chart in Appendix A. Select the Screen Saver Interval drop down box to set the screen saver timeout interval: 5 minutes, 10 minutes, 15 minutes, 30 minutes, or never time out.

Reset button.

A system reset does not affect any stored custom rates.

or all (video and audio) – can be saved (Save Preset) and later recalled (Recall Preset). Before the save process is completed, the process may be cancelled (Cancel Preset).

You can configure the audio signal via the following adjustment tools:

Audio Frequency Tone slider bar — Adjust the slider bar to specify the audio

frequency for the sine wave, square wave, or sine burst signals. It is adjusted by moving the slider bar left or right or by selecting the

) or right ( ) arrow buttons to make incremental adjustments to the

left ( audio frequency.

3-23VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

Frequency Sweep (Sweep) slider bar — Adjust the slider bar to specify duration

of the sweep signal. It is adjusted by moving the slider bar left or right or by selecting the left ( ) or right ( ) arrow buttons to make incremental adjustments to the sweep duration. The frequency sweep format can be logarithmic (more time spent in the lower frequencies) or linear (equal time being spent in the low and high frequencies). The direction of the sweep can be from high to low frequencies or from low to high frequencies.

Start/Stop Sweep slider bar — Adjust the slider bars to specify the start and stop

frequencies for the sweep signal. It is adjusted by moving the slider bar left or right or by selecting the left ( incremental adjustments to the start and stop sweep frequencies.

Sine Burst adjustments box — Set interval and duration in cycles for the sine

burst signal. The sine burst duration is always less than the interval.

Level Scale slider bar — Adjust the audio level range for each signal type by

moving the slider bar up or down or by selecting the left ( arrow buttons to make incremental adjustments to the audio level.

Audio Mute check box — Select this box if audio is to be muted.

Square Wave Auto-Attenuation Mode check box — Select this box when a

square wave signal should be automatically attenuated to -40 dBu (-42 dBV) when toggling through the audio signals.

Scale Mode radio buttons — Select dBu or dBV.

Output Channel drop down box — Select the audio output channel(s): left, right,

or both channels.

) or right ( ) arrow buttons to make

) or right ( )

Scope-Trigger tab

The Scope Trigger tab screen, shown below, features the Current Pattern test pattern drop-down box from which an available test pattern for the current video rate may be selected. The trigger point’s display cursor can then be activated as either a crosshair or single pixel, and the cursor can be placed using the Send Cursor To drop-down box. A specific trigger point can be reached by typing into the appropriate text boxes its X and Y coordinates relative to the active area or total area. The cursor can also be placed by clicking in the Scope Trigger Window display or by clicking the directional arrows ( , , , ) that are located above and to the right of the Scope Trigger Window display.

VTG 400D/400 DVI • Serial Communication3-24

Scope Trigger Window

Power/Status button

The VTG can be powered on and off by clicking this button. When the button’s status indicates “Power is On”, it can be clicked to toggle the power off and the status then indicates “Power is Off”. When the button’s status indicates “Power is Off”, it can be clicked to toggle the power on, and the status then indicates “Power is On”.

Button Lock/Status button

The VTG can be placed in top panel security lockout mode by clicking this button. When the button’s status indicates “Button Lock Enabled”, it can be clicked to disable the button lock, and the status then indicates “Button Lock Disabled”. When the button’s status indicates “Button Lock Disabled”, it can be clicked to enable the button lock, and the status then indicates “Button Lock Enabled”.

See Top Panel security lockout in chapter 2.

Using the help program

For information on program features:

• Press the F1 computer key.

• Click on the Help menu from within the VTG 400 Control Program.

• Double-click on the VTG 400 Help icon in the Extron Electronics group or folder.

3-25VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

Using the Emulation Mode

The VTG 400/400D/400 DVI Control Program features an emulation mode so that you can configure the VTG before actually using it on site. In emulation mode, you can save the emulated settings to a configuration file, then load that configuration file to the VTG.

1. Start the control program. In the Comm Port Selection screen, select Emulation Mode, then click OK.

2. You can create a new configuration starting from the default settings (see 2a), or you can base the configuration on an existing setup (see 2b).

2a. If you will be creating a brand new configuration, enter a new file name

and select Save (as shown below)

instead of following step 2b.

VTG 400D/400 DVI • Serial Communication3-26

2b. Alternatively, to edit an existing (previously saved) configuration file,

select the appropriate configuration (___.vtg) file.

3. Configure the VTG, as explained earlier in this chapter.

4. Save the configuration by selecting Save Configuration from the File drop-

down menu.

If the program is closed while in emulation mode, all settings are saved to the current configuration file

3-27VTG 400D/400 DVI • Serial Communication

Serial Communication, cont’d

Firmware Upgrade Through the Extron Web Site

The VTG’s firmware is upgraded by going to the Extron Web site, downloading the latest firmware to the PC, then uploading and installing the new firmware from the PC to the VTG via the video test generator’s RS-232 port.

Downloading the latest firmware to the PC

1. Go to the Extron Web site (www.extron.com) and select the product category (VTG 400/400D/400 DVI).

2. Select the Support files tab and click on the Firmware link.

3. Download the firmware install package to your PC. It will have a filename ending in .exe, such as VTG400_FW1x01.exe.

4. Save the file to your PC, and run the executable file. By default, the program

will extract the firmware file and its release notes to C:\Program Files\Extron\Firmware\VTG400.

Uploading the firmware from the PC to the VTG

1. Connect the PC to the VTG via the video test generator’s RS-232 port.

2. Start the control program (see Using the control program earlier in this

chapter).

3. Select Update Firmware from the Control Program window and follow the on-screen instructions.

4. Select Upload from the Firmware Loader window, as shown at right.

5. Select the desired firmware file. The uploading of the firmware to the VTG

will take a few minutes.

The original factory-installed firmware is permanently available on the VTG. If an attempted upload of new firmware fails for any reason, the VTG reverts to the factory-installed firmware.

VTG 400D/400 DVI • Serial Communication3-28

VTG 400D/400 DVI

Appendix A

Reference Materials

Specifications

Included Parts

Test Patterns Chart

Test Patterns in Detail

Video Output Scan Rate Table

Appendix

Specifications

Video signal characteristics

Dot clock ....................................... 200 MHz (max.)

Pixel clock accuracy ..................... 100 ppm

Horizontal frequency range (factory defaults)

15 kHz to 131 kHz

Vertical frequency range (factory defaults)

30 Hz to 120 Hz

Rise/fall time

NTSC, PAL ....................... 140 ns

All other signal rates ....... <4 ns

Video output

Number/signal type ................... 2 RGBHV, RGBS, RGsB, RsGsBs

1 component video 1 S-video 1 composite video (NTSC/PAL) 1 HD-SDI (SMPTE 292M), SDI (SMPTE 259M-C) – VTG 400D only 1 DVI-D (single link) – VTG 400 DVI only

Connectors .................................... 1 x 5 female BNC (RGB)

1 female 15-pin HD (RGB) 1 x 3 female BNC (component video) 1 female 4-pin mini DIN (S-video) 1 female BNC (composite video) 1 female BNC (SDI/HD-SDI) – VTG 400D only 1 female DVI-I (DVI-D) – VTG 400 DVI only

Nominal level ............................... 1 Vp-p for RsGsBs, Y of component video and S-video, and for composite

video

0.7 Vp-p for RGB and for R-Y and B-Y of component video

0.286 Vp-p (burst) for C of NTSC S-video, 0.300 Vp-p (burst) for C of PAL

S-video

Minimum/maximum levels ...... 0.0 V to 1.0 Vp-p

Impedance .................................... 75 ohms

Resolutions ................................... Computer (VGA–WQXGA), video (NTSC, PAL), HDTV, 16:9 high

resolutions, and custom resolutions (user-defined)

Return loss .................................... -30 dB @ 5 MHz

DC offset ....................................... 0 ±5 mV for RGB and component video,

0 ±5 mV for NTSC S-video and composite video

14 mV ±5 mV for PAL S-video and composite video

Sync

Output type .................................. RGBHV, RGBS, RGsB, RsGsBs (for RGB signals)

Tri-level on Y, R-Y, B-Y channels (component video 720p, 1080i, 1080p)

Bi-level on Y channel (for all other component video rates)

Standards ...................................... NTSC, PAL, SMPTE 170M, SMPTE 274M, SMPTE 293M, SMPTE 295M,

SMPTE 296M

Output level .................................. 0.3 Vp-p for RGsB, RsGsBs, component video (bi-level sync)

0.6 Vp-p for RGsB, RsGsBs, component video (tri-level sync)

TTL: 5.0 Vp-p, unterminated for RGBHV, RGBS

Output impedance ....................... 75 ohms

Max. rise/fall time ....................... 5 ns (TTL sync)

Polarity .......................................... Positive or negative (scan rate/signal dependent)

VTG 400D/400 DVI • AppendixA-2

Scope trigger connectors ............. 1 BNC female (scope trigger)

Audio

THD + Noise ................................ <0.008% typical @ +6 dBu (1.55 V), 1 kHz

0.18% @ -38 dBu (9.75 mV), 20 Hz to 20 kHz

Flatness .......................................... ±0.05 dB @ 20 Hz to 20 kHz

Accuracy ....................................... ±0.4 dB

N 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu

Audio output

Number/signal type

VTG 400D ......................... 1 mono, balanced; 2 mono, unbalanced

VTG 400 DVI .................... 1 mono, balanced; 1 mono, unbalanced

Connectors

VTG 400D ......................... (1) 3.5 mm mini stereo jack (unbalanced mono left and right, tip-ring-sleeve)

1 female RCA jack (unbalanced, tip-ring) 1 male 3-pin XLR (balanced) (pin 1 = GND, pin 2 = +, pin 3 = -)

VTG 400 DVI .................... (1) 3.5 mm mini stereo jack (unbalanced mono left and right, tip-ring-sleeve)

1 male 3-pin XLR (balanced) (pin 1 = GND, pin 2 = +, pin 3 = -)

N The XLR output is immune to phantom power.

Impedance .................................... 50 ohms unbalanced, 100 ohms balanced

Waveforms.................................... Pink noise, white noise, sine wave (fixed/swept burst), square wave,

polarity test

Level ranges ................................. Pink noise: -72 dBu to -4 dBu (-74 dBV to -6 dBV) (0.20 mV to 500 mVrms)

Polarity test: -72 dBu to -14 dBu (-74 dBV to -16 dBV) (0.20 mV to 158 mVrms) All other signal types: -72 dBu to +6 dBu (-74 dBV to +4 dBV) (0.20 mVrms

to 1.58 Vrms)

Maximum level (Hi-Z) ................ >+6 dBu, balanced or unbalanced at 1% THD+N

Maximum level (600 ohm) ......... >+4.66 dBu, balanced or unbalanced at 1% THD+N

Crest factor (pink noise) ............. 3.25 (10.24 dB)

Crest factor (white noise) ........... 1.98 (5.95 dB)

Rise time (square wave).............. 1.5 ms at 20 Hz to 7 µs at 5 kHz

Rise time (polarity test) ............... 5 µs

Frequency accuracy (sine wave) 50 ppm

Control/remote — test generator

Serial control port RS-232, 9-pin female D connector Baud rate and protocol 9600 baud, 8 data bits, 1 stop bit, no parity Serial control pin configurations 2 = TX, 3 = RX, 5 = GND Program control Extron’s control/configuration program for Windows

Instruction Set (SIS

™

)

Extron’s Simple

General

Power ............................................. 100 VAC to 240 VAC, 50-60 Hz, 15 watts, internal

Temperature/humidity .............. Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing

Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing

Cooling .......................................... Convection, vents on sides

Rack mount ................................... No

A-3VTG 400D/400 DVI • Appendix

Appendix

Enclosure type .............................. Metal

Enclosure dimensions ................. 6.75" H x 9.0" W x 1.75" D

17.1 cm H x 22.9 cm W x 4.4 cm D

(7.5" [19.1 cm] H including connectors.)

Product weight ............................. 3.3 lbs (1.5 kg)

Shipping weight .......................... 7 lbs (4 kg)

Vibration ....................................... ISTA 1A in carton (International Safe Transit Association)

Regulatory compliance

Safety ................................. CE, CUL, UL

EMI/EMC ......................... CE, C-tick, FCC Class A, ICES, VCCI

MTBF ............................................. 30,000 hours

Warranty ....................................... 3 years parts and labor

N All nominal levels are at ±5%.

N Specifications are subject to change without notice.

Included Parts

These items are included in each order for a VTG 400D/400 DVI:

Included parts Part number

VTG 400D (1) 60-564-02

VTG 400 DVI (1) 60-564-03

Nylon carrying case

IEC power cord

VTG 400D/400 DVI Setup Guide

Extron software disk

VTG 400D/400 DVI • AppendixA-4

Test Patterns Chart

The following chart lists the VTG test patterns and any special features.

Safe Area

(5%/10%)

16:9 Crop

(4:3 Rates)

4:3 Crop

(16:9 Rates)

Rectangle/

Crosshairs

Circles

Focus

Square

Special Features

Adjustable

Video

PAL

Levels

Invert/

Special

Work-

station

Stereo-

graphics

RangeTest Pattern

Super Hi Res

16:9

Video

HDTVName Icon PCNo.

NTSC

X X X X X X X X X

X X X X X X X X

X X X X

X X X X X X X X X

4x4

Crosshatch

Coarse

Crosshatch

Fine

Crosshatch

PLUGE

32–Level

Split

Grayscale

Extreme

Grayscale

X X X X X X X X X

X X X X X X X X

A-5VTG 400D/400 DVI • Appendix

Appendix, cont’d

Color Bars

SMPTE Bars (with PLUGE

Color Bars

full bars)

Ramp

(8-color

split)

pattern)

EBU

(8-color

Window

80%

Window

20%

Special Features

Adjustable

Video

PAL

Levels

Invert/

Special

Work-

station

Stereo-

graphics

RangeTest Pattern

Super

Hi Res

16:9

Video

HDTVName Icon PCNo.

NTSC

X X X X X X X X X

X X X X X X

Blue

Mode

X X X X X X X X

Window

(variable

level)

Flat Field

with

Targets

Checker-

board

Bounce

(auto-

matic)

Bounce

(manual

toggle)

X X X X X X X X X

X X X X X X X X X X

X X X X X X X X

Toggle

On/Off

VTG 400D/400 DVI • AppendixA-6

Work-

station

Stereo-

graphics

RangeTest Pattern

Super Hi Res

16:9

Special Features

HDTVName Icon PCNo.

NTSC

PAL

Levels

Adjustable

Video

Invert/

Special

Alternating

Pixels

(1 on, 1 off)

Frequency

Sweep

Graphics

Multiburst

Alternating

Pixels

(2-dimen-

sional)

Multipulse

Transient

Response

X X X X X X

X X

X X X X X X

X X

X X X X X X

X X

X X X X X X X X

Contrast Transfer

Function (CTF)

H Pattern

Hum Bar

Detect

X X X X X X X X X

Vert. Line

Flashing

On/ Off

X X X X X X X X X

A-7VTG 400D/400 DVI • Appendix

Appendix, cont’d

Test Patterns in Detail

The following test patterns descriptions are helpful in determining how and when the VTG’s array of test patterns can be used. The numbers correspond to the test patterns in the previously described Test Patterns Chart.

1. Circles

having low quality optics may show chromatic aberrations of the test pattern, especially in the corners. Chromatic aberrations manifest when the projection lens functions as a prism and separates light into its component colors. Utilizing this pattern, chromatic aberration is seen as a separation of red, green, and blue typically toward the corners of the image area.

When used in the 16:9 format, the pattern shows the small circles in the extreme corners of the test pattern. The 4:3 format version, if displayed on a 16:9 display in the widescreen mode, shows the circles as being more egg-shaped. The centered vertical line and horizontal line form a crosshair target indicating the exact center of the image.

White circles on a black background are useful for checking overall image geometry and linearity. The invert feature converts the pattern to predominantly white, which may also be used to evaluate white field uniformity as well as geometry across the screen. Projectors

2. Safe Area (5%/10%)

Television receivers (typically CRT-based types) commonly extend the image raster beyond the edges of the display, which is a practice called overscanning. Overscanning hides image nonlinearities and raster scan artifacts as well as production test patterns typically hidden within the

last few lines of the vertical blanking interval.

The safe area pattern thus becomes a guide for the technicians in the television production environment to show the likely amount of cropped display area on a typical consumer television receiver. The outer rectangle indicates a 5% crop area, which is the minimum amount of overscan for picture information. The inner rectangle represents a 10% crop area and is referred to as the “safe title area”.

By maintaining all key action within the rectangle representing the 5% crop area, the producer can guarantee that the viewer will be able to see all of the intended information. By maintaining all titles inside the area bounded by the 10% safe area marker, all text and titling will be seen by the viewer. The centered vertical line and horizontal line form a crosshair target indicating the exact center of the image.

3. Focus

The focus test pattern tests the depth of field of the projector lens. Low quality lenses do not display the corners of the test pattern with equal sharpness to the center; or, the corners do not appear the same as the

center. The focus patches represent a combination of high frequency detail (vertical lines) as compared to low frequency information (horizontal lines). These patches should be equal in brightness and color hue when a video system has an overall flat frequency response.

When high frequency response suffers significantly, the patches of vertical alternating pixels blend toward a 50% gray level. Since the background is 50% gray, the patches tend to disappear within the background. Comparing the patches to the background assists in making this evaluation.

VTG 400D/400 DVI • AppendixA-8

4. 16:9 Crop (4:3 rates)

This test pattern is used to display the resulting letterbox effect of a widescreen (16:9) image within a standard 4:3 display system. The outer border corresponds to the maximum dimensions of a 4:3 image

for the given line rate. The two horizontal lines within the pattern show the area and boundaries of a 16:9 image within a 4:3 space. Use this pattern for setting or creating screen masking systems.

4:3 Crop (16:9 rates)

This test pattern is used to display the resulting side-boxing effect of a standard 4:3 image within a 16:9 widescreen display system. The outer border corresponds to the maximum dimensions of a

16:9 image for the given line rate. The two vertical lines within the pattern show the area and boundaries of a 4:3 image within a 16:9 image space. Use this pattern for setting or creating screen masking systems.

5. Rectangle/Square Crosshairs

This pattern can be used to properly center the image and set geometry. For CRT-based projectors, this pattern is used to check and adjust gross linearity and static convergence. Regardless of whether

the VTG is set for a 4:3 or 16:9 aspect ratio, this pattern provides a perfectly centered square, which is useful for basic geometric alignment of the projector and the projector-to-screen relationship.

Orthogonal alignment of the projector to the screen is critical for best overall focus and image geometry. Utilizing a simple square allows the installation technician to easily measure from the projector’s lens axis location to each corner of the test square for determination of orthogonal alignment. In addition, the outer line provides a border indicating the extreme boundary of the image. It is important that the border line be just visible inside the screen boundaries. The crosshair lines through the center of the pattern provide an easy target for static convergence adjustment of a CRT projector or evaluation of video delay skew.

6. 4x4 Crosshatch

Crosshatch patterns are traditionally used for linearity and

convergence adjustment (both static and dynamic) of CRT-based

displays. Additionally, this particular 4 x 4 pattern is useful for

calibrating the position of picture-in-picture display boxes. It may also be used to calibrate the division of the screen for multiplexed images such as in video wall applications or video multiplexing processors handling several images simultaneously.

7. Coarse Crosshatch

Crosshatch patterns are traditionally used for linearity and

convergence adjustment (both static and dynamic) of CRT-based

displays. The coarse crosshatch pattern may be appropriate for

adjustment where more points of interest are required for optimum adjustment of large projected images. It may also be used for critical skew alignment of the red, blue, and green signals within a twisted-pair video transmission system.

Crosshatch patterns are typically generated using one-pixel wide vertical lines (highest frequency in a given scan rate) and one-line wide horizontal lines in the vertical scanning domain. This feature makes the pattern useful for measuring high

A-9VTG 400D/400 DVI • Appendix

Appendix, cont’d

and low frequency response where the perceived brightness of both horizontal and vertical lines should be the same for a system with good frequency response.

8. Fine Crosshatch

adjustment, skew adjustment, lens evaluation, and so forth. All three crosshatch patterns (4x4, large, and fine) include a border which indicates the maximum extension of the active image area for any given signal line rate.

9. PLUGE

Setting Black Level

Proper setup of black level, or brightness, is important for establishing the correct threshold where the display begins to emit light as the video signal moves away from black (or cutoff). Setting black level too low results in the crushing of details within the shadow regions of the image. Setting black level too high results in washed out shadow areas. Utilize the vertical bars on each side of the pattern for adjustment of black level.

Crosshatch patterns are traditionally used for linearity and convergence adjustment (both static and dynamic) of CRT-based displays. The fine crosshatch pattern consists of finely spaced lines to create many more intersection regions for finer convergence

The PLUGE (Picture Line-Up Generating Equipment) test pattern is used for proper setup of black level (brightness control) and display gain (contrast).

PLUGE Pattern Video Levels

0% (Black)

100 %

95%

75%

+4%–2% +2% +2% –2%+4%

50%

25%

The overall dark surround of the pattern should be as black as the “blacker-thanblack” vertical bar (-2%) when the brightness control is properly adjusted. When the brightness control is correctly set, the remaining two vertical bars on each side

VTG 400D/400 DVI • AppendixA-10

are visible. The dimmer of the two is +2%, and the brighter is +4% above black. If either or both of the brighter bars are not visible, the black level is set too low. When the test pattern background is illuminated such that the “blacker-than-black” bar is discernible against the black surround, the black level is set too high.

Contrast Gain

The group of four illuminated boxes in the center region of the test pattern are used solely for contrast control adjustment. The intensities of the boxes are 25%, 50%, 75%, and 100% from bottom to top. Included within the 100% white box is a 95% box. The contrast control (or system gain) should be adjusted using this pattern until no further increase in contrast produces additional light output from the 100% box. With traditional CRT displays, the white box would “bloom” out of focus, lose all line definition, and tend to distort. It typically would also shift toward yellow (indicating a lack of blue light output) when the threshold of nonlinearity is achieved. The correct setting is just prior to any or all of these described conditions.

For fixed pixel displays, such as LCD, DLP, or LCoS, where the imaging element is merely controlling the amount of light transmitted or reflected, the display system attains maximum light output, and any further adjustment results in no visible change of brightness. Adjusting past the threshold of maximum light output results in the clipping of highlight details close to white by “pushing” them into the full white output region of the display.

This point of maximum light output is difficult to visually gauge. Use the 95% box within the 100% box as an indicator for the correct gain setting. Just when the 95% box begins to climb in brightness and approaches the 100% setting, the point of maximum is reached. If the gain setting is too high, the 95% box merges into the full white presentation of the 100% box. Furthermore, the luminance of the three lower boxes rises to a point where they become white and merge with the 100% box. This condition represents an adverse setting of the system gain.

10. 32-Level Split Grayscale

This pattern is used to assess grayscale tracking, or consistent color of

gray, from black to white. The ability of a display to render an

accurate image rests with its ability to faithfully reproduce a linear

grayscale. There should be no perceived color shift across the presentation of gray levels. Any color shift seen within this pattern manifests as a change in color hue or rendition within all imagery as intensities change from dark to light.

11. Extreme Grayscale

This pattern reveals the display’s ability to produce subtle grayscale near the extreme white and black portion of the display’s dynamic range. As the display system approaches full white or black, slight changes in luminance output convey shadow and detail near these

extremes.

Displays must be capable of fully linear reproduction in order to exhibit good control near the extreme ends of the image range. Incorrectly adjusted contrast (gain) and brightness (black level) controls cause loss of important details near white and black. The extreme grayscale pattern allows easy evaluation of display setup for this important parameter.

The shallow ramps near white at the top of the pattern show performance near white. The center level is 100% white. The shallow ramp extends downward below 100% white by eight steps to 94.5% and upward above reference white to 105.5% in eight steps. Each step represents a 0.685% change. Adjusting contrast (gain) so that

A-11VTG 400D/400 DVI • Appendix

Appendix, cont’d

each step above 100% is just visible ensures that peak video changes and details near white are preserved.

Conversely, the shallow ramps near black at the bottom of the pattern show performance near black. The shallow ramp extends downward below black (0%) by eight steps to -5.5% and upward to +5.5% in eight steps. Each step represents a

0.685% change. Adjusting brightness (black level) so that each of the steps below 0% is just visible ensures that peak video changes and details in the shadows are preserved.

The center of the pattern includes a regular 15 step split grayscale for convenience and serves the same function as the split grayscale pattern described earlier.

12. Ramp

pixel depth requirement for perception of continuous tones in colors and grayscale for each of the primary colors (i.e. red, green, and blue). The VTG utilizes 10-bit pixel depth for creation of all its test patterns. This provides four times more resolution for shades of colors or levels of gray than 8-bit systems.

The gradual change in light output across the ramp should appear smooth without any noise, banding, or other inconsistencies. Displays and processors having less than 8 bits per pixel per color may exhibit periodic vertical bands along the ramp pattern, commonly called contouring. The ramp pattern, due to its gradual level change, can be used to highlight specific points where image processing noise may become visible.

The ramp pattern is commonly used to evaluate display performance in the area of pixel depth capability. Since the creation of image test patterns using digital technology, the industry acknowledges that a minimum pixel depth of 8 bits per pixel (256 levels) is the minimum

13. Color Bars (8-color split)

For graphics line rates, this color bar pattern is helpful in verifying correct cable connections for red, green, and blue signals. It may be used to facilitate setting of video levels and check for low frequency crosstalk between the color channels. General uses include

verification of relative color timing, saturation, and level adjustment.

SMPTE Color Bars (with PLUGE pattern)

Designed for NTSC video systems, this pattern was standardized by the Society of Motion Picture and Television Engineers for proper alignment of the NTSC color transmission system. This color bar

pattern is used to evaluate NTSC color decoding systems and assist in proper setup of the color and tint (hue) controls in an NTSC television monitor or receiver. The PLUGE pattern contained in the lower right section of the pattern is used to set proper black level as described for the dedicated PLUGE pattern available from the VTG 400.

The small complimentary color rectangles at the bottom of the larger color bars are used to facilitate color and tint calibration. In order to properly calibrate the color and tint controls, some method of suppressing the red and green channels is necessary so that only the blue content of the color bar signal is in use. This may be done by viewing the test pattern through a blue filter, by switching to the “blue only” mode available on some monitors, or by removing the red and green cables from the display input if the decoding process is being handled in an external video processor.

VTG 400D/400 DVI • AppendixA-12

The small blue rectangle under the white bar and the small white rectangle under the blue bar are used to indicate proper threshold of the color control level. While viewing the blue bars, adjust the color level control until the perceived brightness of the small rectangles merges with the larger bars to yield one consistent intensity.

Now, adjust the tint control by viewing the small rectangles under the cyan and magenta bars. Adjust the tint control until those bars merge into one long bar of consistent intensity. There may be interaction between color and tint, so, alternately adjust each control using this procedure until the blue bars across the screen are all of consistent intensity. This ensures proper adjustment of the color decoder. The inability to achieve an even intensity indicates the presence of color decoder errors.

Note that composite NTSC video utilizes a 7.5 IRE setup pedestal for the black level. The S-video format is likely to include the setup pedestal depending on the source system and the methodology for signal creation. The VTG 400 includes the setup on the S-video luminance signal output and on the component Y channel output. Digitally-produced component NTSC or decoded NTSC (into the RGB domain) does not utilize the setup pedestal. This difference can account for a significant shift of black level when calibrating displays for multiple signal sources and formats.

EBU Color Bars (8-color full bars)

The EBU color bars are used by European television personnel transmitting PAL (Phase Alternating Line) television signals. Its function is identical to the NTSC color bars except that it is made up of

eight single bars with no provision for color saturation setup or PLUGE. The PAL system, by design, does not require a tint control on the receiver’s decoder. Therefore, tint calibration is not required. Note that the PAL transmission standard does not utilize a setup pedestal. Therefore, black level reference in the signal is consistent regardless of format.

14. Window 80%

overdrive condition. Therefore, the 80% gray level of this pattern is a good choice for setup of highlight values when performing grayscale setup of a display where light output efficiency may not rival that of a direct-view display.

Using the 80% window as the highlight value for performing color of white measurement with a colorimeter typically does not overdrive the projection system. When using a colorimeter, or other suitable light measurement device, the gain or highlight controls are adjusted to provide the correct color of white during grayscale calibration. The 80% window pattern is located “next door” to the 20% level window pattern to facilitate quick switching between high and low duty cycle window patterns in order to streamline the grayscale calibration procedure.

Window patterns provide a low duty cycle white, or near white,

reference at screen center for performing grayscale setup without

driving the display into a nonlinear operating condition. In particular,

driving CRT-based projectors with high duty cycle signals causes an

A-13VTG 400D/400 DVI • Appendix

Appendix, cont’d

15. Window 20%

(those gray levels near black) when performing grayscale setup of a display.

When using a colorimeter, or other suitable light measurement device, the bias or lowlight controls are adjusted to provide the correct color of gray near black during grayscale calibration. This pattern is located “next door” to the 80% level window to facilitate quick switching between high and low duty cycle window patterns in order to streamline the grayscale calibration procedure. In addition, the 20% level window is located next to the variable window pattern which may be set to any value from zero to 100% output level. The default level for the variable window pattern is 100%.

16. Window (variable level)

Using the Up/Down soft keys on the VTG 400, the level of this pattern may be set in 1% increments to any value required.

For direct-view displays, the 100% window level is normally used to set the highlight or gain controls when performing grayscale calibration. With this pattern located next to the 20% window, rapid pattern switching is possible between highlight and lowlight adjustments when performing the grayscale calibration procedure.

Window patterns provide a low duty cycle white, or near white, reference at screen center for performing grayscale setup without driving the display into a nonlinear operating condition. The 20% gray level of this pattern is a good choice for setup of lowlight values

Window patterns provide a low duty cycle white, or near white, reference at screen center for performing grayscale setup without driving the display into a nonlinear operating condition. The variable window pattern level defaults to 100% output level, or full white.

17. Flat Field

This pattern is used to evaluate white field uniformity. The default level of this white field is 100%, but may be adjusted using the VTG 400 soft keys to any value from zero to 100% in 1% increments. This

pattern is also used for the measurement of display light output. For example, with the ANSI methods of measurement for display light output, an appropriate light meter may be placed at each of the prescribed nine screen locations in order to obtain readings for entry into the ANSI calculations. See the Flat Field with Targets test pattern for additional support with this task.

For situations requiring display of any one of the primary or secondary colors as a flat field, the user may enter into the VTG 400 video setup menu and turn On or Off combinations of the primary output channels. Also note that this feature is available to modify the color of most all the test patterns.

18. Flat Field with Targets

Switching to the Flat Field with Targets pattern results in nine box

targets being overlaid upon the flat field pattern. These targets guide

the user with proper location placement of the appropriate light

metering device for collection of light output levels used in calculation of the ANSI lumen value of the display. The targets facilitate location of the light meter only and should be switched Off (returning to the regular flat field pattern) while taking the light measurement reading.

VTG 400D/400 DVI • AppendixA-14

19. Checkerboard

The checkerboard consists of sixteen rectangles with half being black (0%) and half being white (100%). This pattern is commonly used to measure contrast ratio of the display system and is the prescribed

pattern for performing contrast ratio measurement within the ANSI procedure.

Fundamentally, contrast ratio is the ratio of the peak white luminance value divided by the minimum luminance value near black. By mathematical definition, as the black level approaches true zero light output, contrast ratio approaches infinity. This pattern may be used to perform the ANSI contrast ratio measurement regimen or other methods as well. The user may “invert” the pattern which will change the luminance of the starting rectangle and subsequent rectangles from the original luminance level to the opposite level. Distortion of the 100% white rectangles on a CRT-based or plasma type display indicate a condition of overdrive.

20. Bounce (automatic)

Some operating conditions of displays may only be evaluated or perceived with moving images or images that change in average duty cycle (picture content) over time. The APL (Average Picture Level)

bounce pattern provides just such a test. The central area is comprised of a large white rectangle with a black crosshair pattern. The pattern automatically changes between full white and full black continuously at one-second intervals.

Bounce Pattern

1 sec.

The white box in the center of the pattern toggles between black and white once every second. The border on the outside of the pattern does not change .

This duty cycle shift assists evaluation of black level shift. For CRT-based displays, high voltage regulation performance may be evaluated. High voltage variations with image duty cycle changes cause one or more combinations of distortion among the components of the pattern such as the white rectangle, the lines within the white rectangle, or the lines surrounding the pattern.

21. Bounce (manual toggle)

This version of the APL (Average Picture Level) bounce is static and

may be exercised by the user at will. Use the Invert function on the

VTG’s soft keys to cause the pattern to invert, or shift, at any moment

desired. This capability is used when evaluation under conditions of random performance is desired. See the automatic version of the APL bounce pattern for more information.

1 sec.

A-15VTG 400D/400 DVI • Appendix

Appendix, cont’d

22. Alternating Pixels (1 on, 1 off)

frequency performance of the display or a graphics system in total. It may also be used to align or evaluate pixel timing and phase on fixed pixel displays. As a source for EMI testing, the alternating pixel pattern represents a worst case scenario for products that may radiate energy in relation to FCC regulations. Typically, an oscilloscope is used to measure the true performance of the display system using this pattern.

Frequency Sweep

color decoder performance in the region of the chroma subcarrier frequency.

The sweep limit for NTSC is 4.2 MHz and the sweep limit for PAL is 5 MHz. While some visual information can be derived from viewing this pattern on a display, bandwidth evaluation is most accurately accomplished using an oscilloscope or waveform monitor.

For computer graphics displays, alternating pixels represent the highest frequency operation at a given line rate, or resolution. These one-On, one-Off transitions tax the speed of a graphics system and the display’s performance as well. Use this pattern to assess the high

Within the NTSC or PAL environment, the frequency sweep pattern provides a sine wave sweep from near DC to the specified system bandwidth for the affected broadcast standard. This pattern is used to evaluate system bandwidth performance and is also used to evaluate

23. Graphics Multiburst

The graphics multiburst provides groups of digital bursts consisting of 1/1 (meaning one-On, one-Off) alternating pixels at screen center flanked by 2/2 alternations, then 4/4 alternations,

8/8 alternations, and a white reference. Perception of grayscale should remain consistent throughout; otherwise, frequency response differences will cause color shifts, particularly in the 1/1 burst as compared to the other bursts.

Utilizing an oscilloscope, this pattern may be used to evaluate high frequency versus low frequency performance of a graphics system. The border area between bursts is 50% gray. Anomalies of high frequency performance resulting in severe attenuation of the center burst of 1/1 pixels blend into the middle gray border. In addition, color shifts are most easily identified against the low frequency nature of the middle gray level.

Multiburst

The television multiburst is intended to provide rapid evaluation of

system bandwidth over the television channel using a waveform

monitor or oscilloscope. A full bandwidth system reproduces the

multiburst with all bursts having equal amplitude from low frequency to high frequency. Visually, the pattern may be used to see the relative quality or effect on bandwidth of the color decoder system and luminance channel.

Each version of the multiburst includes one burst at the system subcarrier frequency so that luminance channel attenuation due to the quality of the color decoding system may be observed. Each burst is symmetrical about a 50% (middle gray) pedestal. Following are the basic specifications for the two multiburst formats in the VTG 400:

NTSC – White reference bar followed by 0.5, 1, 2, 3, 3.58, and 4.2 MHz bursts

PAL – White reference bar followed by 0.5, 1, 2, 4, 4.43, and 5 MHz bursts.

VTG 400D/400 DVI • AppendixA-16

24. Alternating Pixels (2-dimensional)

This pattern is similar to the alternating pixel pattern discussed earlier; however, while it consists of one-On, one-Off alternating pixels on each horizontal line, the phase is shifted 180 degrees for every

other line thereby creating a minute checkerboard effect. Because of the line-to-line phase shift, this pattern is useful for critically evaluating pixel timing and phase in a graphics display system. The pattern is produced at the highest clock rate required for the selected image resolution. Incorrect pixel digitization within a display manifests on the screen as regions of “dancing pixels”, instability, or noise in the test pattern. Pixel timing and phase may be adjusted in most fixed pixel displays until any abnormal noise effects are nullified.

Multipulse

The multipulse pattern is uniquely applied to evaluation of group delay in television signal distribution systems. Individual frequencies propagate along cables, such as coaxial cables, at different speeds.

High frequencies are affected more than lower frequencies relative to one another. The rate at which signals of differing frequencies propagate manifests as time of one signal component to the other. This phenomenon is referred to as group delay.

In the case of NTSC or PAL television signals which contain many frequency components that must maintain strict timing relationships, the chroma signal typically becomes misaligned in time (delayed) compared to the luminance transitions. This results in poor edge quality and fidelity for areas containing color information since the color information is not only delayed, but suffers amplitude loss as well.

The multipulse consists of a low frequency level or “white bar” which indicates maximum video signal level. This bar is followed by a series of pulses. The first pulse is a 2T pulse without any modulation. The 2T pulse represents the highest frequency component in the television luminance channel. When its amplitude is maintained at the same level with the bar throughout the system distribution, the low to high frequency response is considered satisfactory.

NTSC Multipulse

The 2T pulse is followed by a series of modulated pulses: First, a 20T pulse encompassing a 1 MHz sine wave burst, followed by a 12.5T pulse containing a 2 MHz sine wave burst, followed by a 12.5T pulse containing a 3 MHz sine wave burst, followed by a 12.5T pulse containing a 3.58 MHz sine wave burst, followed by a 12.5T pulse containing a 4.2 MHz sine wave burst. Much like the multiburst signal discussed earlier, each of these frequencies provides an intermediate bandwidth point for consideration, including the color subcarrier and a frequency burst at the bandwidth limit of the system.

The frequency burst inside each pulse is generated to fit within the pulse symmetrically and have an amplitude that matches the pulse height and duration without extending past its areal limits. Group delay in a television distribution system causes relative time shift between the imposed burst and the encompassing pulse. Amplitude disturbance of the burst within each pulse manifests as an upward or downward level shift, which appears as concaved upward above black level for low level to convexed downward beyond black for excessive level.

A-17VTG 400D/400 DVI • Appendix

Appendix, cont’d

Phase anomalies of the burst manifest as a wavy appearance at the base of the pulse region. Transmission line quality and length have more proportional effect on the higher frequency pulse/burst combinations. Group delay effects may be combated using a video processing amplifier or an equalizing network at the termination end of the line.

PAL Multipulse

The 2T pulse is followed by a series of modulated pulses. (1) a 20T pulse encompassing a 1 MHz sine wave burst, (2) a 12.5T pulse containing a 2 MHz sine wave burst, (3) a 12.5T pulse containing a 4 MHz sine wave burst, (4) a 12.5T pulse containing a 4.43 MHz sine wave burst, and (5) a 12.5T pulse containing a 5 MHz sine wave burst. Much like the multiburst signal discussed earlier, each of these frequencies provides an intermediate bandwidth point for consideration, including the color subcarrier and a frequency burst at the bandwidth limit of the system.

The frequency burst inside each pulse is generated to fit within the pulse symmetrically and have an amplitude which matches the pulse height and duration without extending past its areal limits. Group delay in a television distribution system will cause relative time shift between the imposed burst and the encompassing pulse. Amplitude disturbance of the burst within each pulse manifests as an upward or downward level shift, which appears as concaved upward above black level (for low level) to convexed downward beyond black (for excessive level). Phase anomalies of the burst manifest as a wavy appearance at the base of the pulse region. Transmission line quality and length will have more of a proportional effect on the higher frequency pulse/burst combinations. Group delay effects may be combated using a video processing amplifier or an equalizing network at the termination end of the line.

25. Transient Response

This pattern supports analysis of system transient response both from black to white and white to black. Signal level transitions from the extremes to middle gray require that the display system response be

carefully designed so that transition artifacts are not visible on the gray background. Signal overshoot, undershoot, line distortion (streaking), and ringing (trailing ghosts) manifest on the gray surround region when system response is less than ideal.

The horizontal white and black bars emphasize lower frequency response issues. Look for streaks trailing each of the horizontal bars. The short term vertical lines represent high frequency transitions of time durations which will tend to show up ringing problems within the high frequency response of the imaging system. Ringing manifests as dark and light “ghosts” following the vertical lines and bars in the test pattern.

VTG 400D/400 DVI • AppendixA-18

26. Contrast Transfer Function (CTF)

The Contrast Transfer Function (patent pending), or CTF, provides an indication of overall system high frequency response including the display’s optical path. While most high frequency test patterns

provide electrical bandwidth performance information when used with appropriate test instruments, evaluation of overall system response, including the optical pathway, is virtually nonexistent. Good high frequency performance translates to the perception of contrast and detail in the image. As high frequency performance degrades, contrast ratio between high and low image transitions approach middle gray and appear muddy or non-distinct. Should high frequency transitions become fully attenuated, the contrast falls to zero.

The CTF pattern contains bursts of high frequency alternating pixels and bursts of low frequency lines. Both appear as vertical bands on the screen. In the default mode, the alternating pixel bursts flash On and Off at a rate of 0.5 second, or 2 Hz. Pushing the soft key on the VTG’s display screen defeats the flashing effect, if desired.

The low frequency line bursts will pass through a display system with less relative attenuation than the high frequency bursts. Since the high frequency bursts will appear to approach middle gray and lose detail when system response is degraded, the user may adjust the level of the low frequency bursts up or down via the soft keys on the VTG control display to match the perceived brightness of the high frequency bursts. When the point is reached where the perceived brightness of all the bursts is equal, the VTG provides a percentage number on its display. This percentage number is the approximate percentage of contrast performance in the system, including electrical and optical pathways. It may be used as a relative index of performance for the system’s bandwidth.

27. H Pattern

the text from white text on a black background to black text on a white background. Use the H pattern for high frequency response evaluation where text legibility is the most critical application. This pattern may also be used to evaluate transient response, focus, lens distortions, video clamping stability, and image sharpness.

The H pattern represents simple text that can be used to evaluate image sharpness or overall response quality using symbology that anyone can understand. The invert soft key on the VTG 400 reverses

A-19VTG 400D/400 DVI • Appendix

Appendix, cont’d

28. Hum Bar Detect

field with three groups of shallow horizontal steps. Each group contains five steps in increments of 2%.

The Hum Bar Detect pattern assists the user with the location and evaluation of low level ground loop type signal interference. Visual results of induced or conducted low-level AC currents can be difficult to see, depending on image material. This pattern consists of a flat

Hum Bar Detect Pattern Video Levels

Background (Adjustable between 0% - 100%)

+2% +4% +6% +4% +2%

–2

–4

–6

–4

–2

+2% +4% +6% +4% +2%

Note: All bar levels are given relative to the background video level.

The upper and lower groups ascend/descend in value (+2%, +4%, +6%, +4%, +2%) and the middle group descends/ascends in value (-2%, -4%, -6%, -4%, -2%).

VTG 400D/400 DVI • AppendixA-20

VTG 400D/400 DVI Video Output Scan Rate Table

Output Type

Pixel x

Line

Horiz

Rate

(kHz)

PC Rates

VGA 640 x 480 31.5 60 RGB, DVI VESA 2 (VGA) 640 x 480 37.9 72 RGB, DVI VESA1 (SVGA) 800 x 600 35.2 56 RGB, DVI VESA5 (SVGA) 800 x 600 37.9 60 RGB, DVI VESA6 (SVGA) 800 x 600 48.1 72 RGB, DVI VESA3 (XGA) 1024 x 768 48.4 60 RGB, DVI VESA4 (XGA) 1024 x 768 56.4 70 RGB, DVI XGA5 1024 x 768 57 70 RGB, DVI VESA8 (XGA) 1024 x 768 60 75 RGB, DVI VESA9 (XGA) 1024 x 768 68.7 85 RGB, DVI VESA10 (XGA+) 1152 x 864 67.5 75 RGB, DVI 1280 x 960 1280 x 960 60 60 RGB, DVI 1280 x 960 1280 x 960 70 70 RGB, DVI 1280 x 960 1280 x 960 75 75 RGB, DVI VESA11 (SXGA) 1280 x 1024 64 60 RGB, DVI VESA12 (SXGA) 1280 x 1024 91.1 85 RGB, DVI SXGA+1 1400 x 1050 63.9 60 RGB, DVI SXGA+2 1400 x 1050 65.32 60 RGB, DVI VESA13 (UXGA) 1600 x 1200 75 60 RGB, DVI VESA14 (UXGA) 1600 x 1200 87.5 70 RGB VESA15 (UXGA) 1600 x 1200 106.3 85 RGB QXGA1 2048 x 1536 99.46 60 RGB QXGA2 2048 x 1536 115 71.8 RGB LCoS1 1360 x 1024 80 75.1 RGB, DVI LCoS2 1365 x 1024 65.2 60 RGB, DVI

Workstation

Vert

Rate

(Hz)

Supported

Formats

Rates

SGI 640 x 480 31.5 60 RGB, DVI SGI 640 x 512 32.22 60 RGB, DVI SGI 800 x 600 37.8 60 RGB, DVI SGI 960 x 680 42.84 60 RGB, DVI SGI 960 x 620 39.06 60 RGB, DVI SGI 1024 x 768 48.36 60 RGB, DVI SGI 1024 x 768 40.3 50 RGB, DVI SGI 1200 x 900 68.04 72 RGB, DVI SGI 1280 x 1024 53.25 50 RGB, DVI SGI 1280 x 1024 63.9 60 RGB, DVI SGI 1280 x 1024 76.68 72 RGB, DVI SGI 1500 x 1200 75.6 60 RGB, DVI SGI 1600 x 1024 63.38 60 RGB, DVI SGI 1600 x 1200 75 60 RGB, DVI SGI 1760 x 1100 71.04 60 RGB SGI 1920 x 1035 33.75 60/30 RGB, DVI SGI 1920 x 1080 33.72 60/30 RGB, DVI SGI 1920 x 1080 70.31 60 RGB SGI 1920 x 1080 84.37 72 RGB SGI 1920 x 1200 77.52 60 RGB SGI 1920 x 1200 85.27 66 RGB SGI 2048 x 1120 83.45 72 RGB Sun 1152 x 900 61.8 66 RGB, DVI Sun 1152 x 900 71.7 76 RGB, DVI Sun 1280 x 1024 81 76 RGB, DVI Sun 1600 x 1280 89.3 67 RGB Sun 1920 x 1080 84.4 72 RGB Sun 1920 x 1200 87.2 70 RGB Sun 1920 x 1200 93.6 75 RGB

Super Hi Res

Rates

Cornerstone 1600 x 1800 105 76 RGB Extron 1280 x 1024 92 86.8 RGB, DVI Extron 1600 x 1280 95 70.9 RGB Extron 1800 x 1440 105 70 RGB

Output Type

Stereographics

Rates

Stereographics VGA

SGI stereo SGI stereo SGI stereo SGI stereo SGI stereo SGI stereo SGI stereo SGI stereo

16:9 Hi Res

Rates

16:9 16:9 16:9 16:9

16:9 WXGA1 WXGA2 WXGA3 WXGA4 WXGA5 WXGA6 WXGA7 WXGA8

WSXGA WSXGA+1 WSXGA+2

1080p PC WUXGA1 WUXGA2

WQXGA

HDTV

Rates

480p 576p 720p 720p 720p 720p 720p

720p 1080i 1080i 1080i

1080p 1080p 1080p 1080p 1080p

1080p 1080p (24PsF) 1080p (24PsF)

1035i 1035i

Video

Rates

NTSC

NTSC 0 IRE (JPN)

PAL I

PAL B, G, H

PAL N

Pixel x

Line

640 x 222 640 x 480

640 x 512 1024 x 768 1024 x 768 1120 x 840

1280 x 1024 1280 x 1024

1280 x 492

848 x 480

852 x 480

960 x 540 1024 x 576 1024 x 576 1280 x 768 1280 x 768 1280 x 768 1280 x 800 1360 x 765 1360 x 768 1365 x 768 1366 x 768 1440 x 900

1680 x 1050 1680 x 1050 1920 x 1080 1920 x 1200 1920 x 1200 2560 x 1600

720 x 483

720 x 576 1280 x 720 1280 x 720 1280 x 720 1280 x 720 1280 x 720 1280 x 720

1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1035 1920 x 1035

720 x 485

720 x 575

Horiz

Rate

(kHz)

31.5

60.84

65.28

96.84

77.47

84.38

124.60

131.16

63.96

31.02

31.8

33.78

44.04

52.85

45.11

48.0

47.77

49.7

47.7

47.72

47.7

47.8

55.94

64.67

65.29

67.2

74.52

74.6

99.46

31.42

31.25

44.96 45

37.5

22.5

22.48

18.75

33.72

33.75

28.13

67.5

33.75

33.72

56.25

28.13 27 27

26.97

33.75

33.72

15.7

15.6

Vert

Rate

(Hz)

120 120 120 120

96 114 120 120

59.94

29.97

23.98

29.97

60/30 60/30 50/25 50/25 50/25

YUV, RGB, DVI

YUV, RGB, HDSDI, DVI

YUV, RGB, HDSDI, DVI YUV, RGB, HDSDI, DVI

YUV, RGB, HDSDI, DVI

YUV, RGB, HDSDI, DVI YUV, RGB, HDSDI, DVI

YUV, RGB, HDSDI, DVI

YUV, RGB, DVI

YUV, RGB, HDSDI, DVI YUV, RGB, HDSDI, DVI

YUV, RGB, DVI

YUV, RGB, HDSDI, DVI

YUV, RGB, HDSDI, DVI YUV, RGB, HDSDI, DVI

VID, Y/C, YUV, RGB, SDI VID, Y/C, YUV, RGB, SDI VID, Y/C, YUV, RGB, SDI VID, Y/C, YUV, RGB, SDI VID, Y/C, YUV, RGB, SDI

Supported

Formats

RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI

RGB RGB

RGB, DVI

RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI RGB, DVI

RGB

RGB, DVI

RGB RGB

A-21VTG 400D/400 DVI • Appendix

Appendix, cont’d

VTG 400D/400 DVI • AppendixA-22

Extron’s Warranty

Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase. In the event of malfunction during the warranty period attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components, to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is returned within the warranty period, with proof of purchase and description of malfunction to:

USA, Canada, South America, and Central America:

Extron Electronics 1001 East Ball Road Anaheim, CA 92805 U.S.A.

Japan: Extron Electronics, Japan Kyodo Building, 16 Ichibancho Chiyoda-ku, Tokyo 102-0082 Japan

Europe, Africa, and the Middle East:

Extron Europe Hanzeboulevard 10 3825 PH Amersfoort The Netherlands

Asia:

Extron Asia 135 Joo Seng Road, #04-01 PM Industrial Bldg. Singapore 368363 Singapore

This Limited Warranty does not apply if the fault has been caused by misuse, improper handling care, electrical or mechanical abuse, abnormal operating conditions or non-Extron authorized modiﬁcation to the product.

If it has been determined that the product is defective, please call Extron and ask for an Applications Engineer at (714) 491-1500 (USA), 31.33.453.4040 (Europe), 65.383.4400 (Asia), or 81.3.3511.7655 (Japan) to receive an RA# (Return Authorization number). This will begin the repair process as quickly as possible.

Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk of loss or damage during shipment. Returned units must include the serial number and a description of the problem, as well as the name of the person to contact in case there are any questions.

China:

Extron China 686 Ronghua Road, Songjiang District Shanghai 201611 China

Middle East:

Extron Middle East Dubai Airport Free Zone F12, PO Box 293666 United Arab Emirates, Dubai

Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality, performance, merchantability, or ﬁtness for any particular use. In no event will Extron Electronics be liable for direct, indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been advised of such damage.

Please note that laws vary from state to state and country to country, and that some provisions of this warranty may not apply to you.

Extron USA - Wes t

Headquarters

+800.633.9876

Inside US A / Canada Only

+1.7 14. 491 .150 0 +1.7 14. 491 .1517 FAX

Extron USA - East

+800.633.9876

Inside US A / Canada Only

+1.9 19. 86 3.17 94 +1.9 19. 86 3.17 97 FA X

Extron Europe

+800.3987.6673

Inside Europe Only

+31.33.453.4040 +31.33.453.4050 FAX

Extron Asia

+800.7339.8766

Inside Asia Only

+65.6383.4400 +65.6383.4664 FAX

Extron Japan

+81.3.3511.7655 +81.3.3511.7656 FAX

Extron China

+400.883.1568

Inside China Only

+86.21.3760.1568 +86.21.3760.1566 FAX

Extron Middle East

+971.4.2991800 +971.4.2991880 FAX

Extron Electronics VTG 400D, VTG 400 DVI User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual