Extron electronics VTG 300 User manual

User Guide
VTG 300/300R
Specialized Products
Video and Audio Test Generator
68-737-01 Rev. E
1111

This symbol is intended to alert the user of important operating and mainte-
nance (servicing) instructions in the literature provided with the equipment.
This symbol is intended to alert the user of the presence of uninsulated
dangerous voltage within the product’s enclosure that may present a risk of
electric shock.
Caution
Read Instructions • Read and understand all safety and operating instructions before using the equipment.
Retain Instructions • The safety instructions should be kept for future reference.
Follow Warnings • Follow all warnings and instructions marked on the equipment or in the user information.
Avoid Attachments • Do not use tools or attachments that are not recommended by the equipment
manufacturer because they may be hazardous.
Warning
Power sources • This equipment should be operated only from the power source indicated on the product. This
equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third
(grounding) pin is a safety feature, do not attempt to bypass or disable it.
Power disconnection • To remove power from the equipment safely, remove all power cords from the rear of
the equipment, or the desktop power module (if detachable), or from the power source receptacle (wall plug).
Power cord protection • Power cords should be routed so that they are not likely to be stepped on or pinched
by items placed upon or against them.
Servicing • Refer all servicing to qualified service personnel. There are no user-serviceable parts inside. To prevent
the risk of shock, do not attempt to service this equipment yourself because opening or removing covers may
expose you to dangerous voltage or other hazards.
Slots and openings • If the equipment has slots or holes in the enclosure, these are provided to prevent
overheating of sensitive components inside. These openings must never be blocked by other objects.
Lithium battery • There is a danger of explosion if battery is incorrectly replaced. Replace it only with the
same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the
manufacturer’s instructions.
Ce symbole sert à avertir l’utilisateur que la documentation fournie avec le
matériel contient des instructions importantes concernant l’exploitation et la
maintenance (réparation).
Ce symbole sert à avertir l’utilisateur de la présence dans le boîtier
de l’appareil de tensions dangereuses non isolées posant des risques
d’électrocution.
Attention
Lire les instructions• Prendre connaissance de toutes les consignes de sécurité et d’exploitation avant
d’utiliser le matériel.
Conserver les instructions• Ranger les consignes de sécurité afin de pouvoir les consulter à l’avenir.
Respecter les avertissements • Observer tous les avertissements et consignes marqués sur le matériel ou
présentés dans la documentation utilisateur.
Eviter les pièces de fixation • Ne pas utiliser de pièces de fixation ni d’outils non recommandés par le
fabricant du matériel car cela risquerait de poser certains dangers.
Avertissement
Alimentations • Ne faire fonctionner ce matériel qu’avec la source d’alimentation indiquée sur l’appareil. Ce
matériel doit être utilisé avec une alimentation principale comportant un fil de terre (neutre). Le troisième
contact (de mise à la terre) constitue un dispositif de sécurité : n’essayez pas de la contourner ni de la
désactiver.
Déconnexion de l’alimentation• Pour mettre le matériel hors tension sans danger, déconnectez tous les
cordons d’alimentation de l’arrière de l’appareil ou du module d’alimentation de bureau (s’il est amovible) ou
encore de la prise secteur.
Protection du cordon d’alimentation • Acheminer les cordons d’alimentation de manière à ce que personne
ne risque de marcher dessus et à ce qu’ils ne soient pas écrasés ou pincés par des objets.
Réparation-maintenance • Faire exécuter toutes les interventions de réparation-maintenance par un
technicien qualifié. Aucun des éléments internes ne peut être réparé par l’utilisateur. Afin d’éviter tout danger
d’électrocution, l’utilisateur ne doit pas essayer de procéder lui-même à ces opérations car l’ouverture ou le
retrait des couvercles risquent de l’exposer à de hautes tensions et autres dangers.
Fentes et orifices • Si le boîtier de l’appareil comporte des fentes ou des orifices, ceux-ci servent à empêcher les
composants internes sensibles de surchauffer. Ces ouvertures ne doivent jamais être bloquées par des objets.
Lithium Batterie • Il a danger d’explosion s’ll y a remplacment incorrect de la batterie. Remplacer uniquement
avec une batterie du meme type ou d’un ype equivalent recommande par le constructeur. Mettre au reut les
batteries usagees conformement aux instructions du fabricant.
Safety Instructions • English
Consignes de Sécurité • Français
Sicherheitsanleitungen • Deutsch
Dieses Symbol soll dem Benutzer in der im Lieferumfang enthaltenen
Dokumentation besonders wichtige Hinweise zur Bedienung und Wartung
(Instandhaltung) geben.
Dieses Symbol soll den Benutzer darauf aufmerksam machen, daß im Inneren
des Gehäuses dieses Produktes gefährliche Spannungen, die nicht isoliert sind
und die einen elektrischen Schock verursachen können, herrschen.
Achtung
Lesen der Anleitungen • Bevor Sie das Gerät zum ersten Mal verwenden, sollten Sie alle Sicherheits-und
Bedienungsanleitungen genau durchlesen und verstehen.
Aufbewahren der Anleitungen • Die Hinweise zur elektrischen Sicherheit des Produktes sollten Sie
aufbewahren, damit Sie im Bedarfsfall darauf zurückgreifen können.
Befolgen der Warnhinweise • Befolgen Sie alle Warnhinweise und Anleitungen auf dem Gerät oder in der
Benutzerdokumentation.
Keine Zusatzgeräte • Verwenden Sie keine Werkzeuge oder Zusatzgeräte, die nicht ausdrücklich vom
Hersteller empfohlen wurden, da diese eine Gefahrenquelle darstellen können.
Vorsicht
Stromquellen • Dieses Gerät sollte nur über die auf dem Produkt angegebene Stromquelle betrieben werden.
Dieses Gerät wurde für eine Verwendung mit einer Hauptstromleitung mit einem geerdeten (neutralen) Leiter
konzipiert. Der dritte Kontakt ist für einen Erdanschluß, und stellt eine Sicherheitsfunktion dar. Diese sollte nicht
umgangen oder außer Betrieb gesetzt werden.
Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen, sollten Sie alle Netzkabel aus der
Rückseite des Gerätes, aus der externen Stomversorgung (falls dies möglich ist) oder aus der Wandsteckdose
ziehen.
Schutz des Netzkabels • Netzkabel sollten stets so verlegt werden, daß sie nicht im Weg liegen und niemand
darauf treten kann oder Objekte darauf- oder unmittelbar dagegengestellt werden können.
Wartung • Alle Wartungsmaßnahmen sollten nur von 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.
Este símbolo se utiliza para advertir al usuario sobre instrucciones impor-
tantes 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 elemen-
tos 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.
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.
Instrucciones de seguridad • Español
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。
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。
Precautions/Safety Instructions ii
FCC, Copyright, and Trademark Information iii
ii

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. Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired operation.
The Class A 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.
NOTE: This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used with
the unit to ensure compliance with FCC emissions limits.
For more information on safety guidelines, regulatory compliances, EMI/EMF compliance, accessibility, and
related topics, click here.
VTG 300/300R iii

Conventions Used in this Guide
Notifications
In this user guide, the following are used:
WARNING: A warning warns of things or actions that might cause injury, death, or
other severe consequences.
CAUTION: A caution indicates a potential hazard to equipment or data.
NOTE: A note draws attention to important information.
TIP: A tip provides a suggestion to make working with the application easier.
Copyright
© 2011 Extron Electronics. All rights reserved.
Trademarks
All trademarks mentioned in this guide are the properties of their respective owners.
VTG 300/300R iv

Contents
Reference Information....................................... 23
Specifications.................................................... 23
Included Parts ................................................... 25
Extron Warranty.................................................. 26
Introduction............................................................ 1
About the VTG 300/300R ................................... 1
Features.............................................................. 1
Operation................................................................ 2
Front Panel Features............................................ 2
Left Side Panel LED (VTG 300R model only)......... 4
Right Side Panel Power Input .............................. 4
Top Panel Video Output ...................................... 4
Bottom Panel Audio Output................................ 4
Example Applications.......................................... 5
Connecting Audio Outputs ................................. 5
Menus, Configuration, and Adjustments............. 6
Moving Through Menus by Using Front Panel
Controls......................................................... 6
Default Menu ................................................. 6
Main Menus ................................................... 7
Test Pattern Setup Menu ................................. 7
Audio Setup Menu.......................................... 8
Video Setup Menu ......................................... 9
Advanced Setup Menu.................................. 10
Exit Menu ..................................................... 13
Additional Functions ......................................... 13
Low Battery Mode ........................................ 13
Button Lock Mode ........................................ 14
Audio Testing Features...................................... 15
Selecting Audio Signals ................................. 15
Setting the Audio Level ................................. 15
Setting the Audio Frequency ......................... 16
Video Testing Features ...................................... 16
Selecting a Video Test Pattern ....................... 18
Selecting a Signal Range ............................... 19
Setting the Scan Rate.................................... 19
Installing the VTG 300 Batteries ........................ 20
Conserving the VTG 300 Battery Life................. 21
Recharging the VTG 300R................................. 21
Installing the Protective Boot............................. 22
vVTG 300/300R • Contents

VTG 300/300R • Contents vi

Introduction
This section provides an overview of the VTG 300 and VTG 300R and describes their
features.
About the VTG 300/300R
The Extron VTG 300 and the VTG 300R are portable, hand-held video and audio test
generators. The VTG 300R features an integrated battery pack and charger, otherwise both
models offer the same functions and features. “VTG” and “video test generator” refer to
both the VTG 300 and the VTG 300R and are used interchangeably.
The VTG will generate video signals for computer, standard resolution video, HDTV, and
16:9 high resolution output rates. The composite video format conforms to the SMPTE
170M video standard. There are also six test pattern categories available for optimizing the
display output: crosshatch, H pattern, color bars, grayscale, alternating pixels/multiburst, and
white field.
For audio signals, the VTG offers basic audio test signals including sine and square waves,
pink noise, white noise, polarity testing, and a frequency sweep from 20 Hz to 20 kHz.
Video output connectors include BNC, 4-pin mini DIN, and 15-pin HD connectors. Audio
output is provided through RCA, 3-pin XLR, and 3.5 mm phone jack connectors.
The VTG 300 is powered by the included external power supply or four AA-type batteries
(not included).
The VTG 300R is powered by both the included external power supply and the built-in
rechargeable batteries.
Features
• Multiple video outputs — Video output rates include:
• Computer video (RGB)
• Standard definition video (NTSC/PAL) – composite, S-video, component video, or
RGB
• HDTV (component, RGB)
• 16:9 high resolution (RGB)
• Scan rates and test patterns — The VTG outputs 43 different scan rates and offers 13
different test patterns in six categories.
• Multiple audio outputs — Audio output is provided through RCA, 3-pin XLR, and
3.5 mm phone jack connectors.
• Automatic recall — Whenever the VTG is powered down, the most recent settings are
saved and then recalled when the unit is powered back up.
• Protective boot — To help protect the VTG from physical damage, a special protective
rubber boot is included.
1VTG 300/300R • Introduction

Operation
This section describes:
• Front Panel Features
• Left Side Panel LED (VTG 300R model only)
• Right Side Panel Power Input
• Top Panel Video Output
• Bottom Panel Audio Output
• Example Applications
• Connecting Audio Outputs
• Menus, Configuration, and Adjustments
• Additional Functions
• Audio Testing Features
• Video Testing Features
• Installing the VTG 300 Batteries
• Conserving the VTG 300 Battery Life
• Recharging the VTG 300R
• Installing the Protective Boot
Front Panel Features
• LCD Display— A two-row liquid crystal
VTG 300R
VIDEO & AUDIO TEST GENERATOR
SIGNAL
TEST
PATTERNS
RANGE
OUTPUT RATE
RATE
MENU
NEXT
POWER
SELECT
LEVEL
FREQUENCY
P.NOISE
W. NOISE
SINE
SQUARE
POLARITY
SWEEP
X-HATCH
H PATTERN
COL. BARS
GRAYSCALE
ALT/ MULTI
WHT. FIELD
PC
VIDEO
HDTV
16:9 HR
AUDIO VIDEO
Signal
Button
Level
Buttons
Frequency
Buttons
Menu
Button
Next
Button
Power
Button
Test Patterns
Button
Range
Button
Rate
Button
Select
Button
LCD
Display VTG 300R
Front panel
display for viewing the VTG status, menus,
and options.
Audio buttons (left side):
• Signal Button (audio signal type) —
Press this button to select from among six
different audio signals, as indicated by
green LEDs to the right:
• Pink noise
(P. Noise),
• White noise
(W. Noise)
• Sine wave
(Sine)
• Square wave
(Square)
• Polarity test
(Polarity)
• Swept sine
wave (Sweep)
• Level Buttons (audio output signal
level adjustment) — Press the button
to increase the RMS signal level and the
button to decrease the RMS signal level.
See the Audio Setup menu section to specify either dBu or dBV as the signal level unit.
2VTG 300/300R • Operation

The audio output level settings for all audio signal types are retained after the VTG is
powered off. The default setting is -28 dBu for polarity and -10 dBu for all other signal
types.
NOTE: If the Level buttons are held down for more than one second, the VTG will
automatically increment the level adjustment in the direction indicated by
the button.
• Frequency (audio frequency adjustment) — When the audio signal type is either
a sine or square wave (see audio signal type, 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 1/3 octave steps (see Setting the audio frequency).
Menu, Next and Power buttons (bottom center):
• Menu Button (menu selection) — Press the Menu button to advance through the
four main menus (see the Menus, Configuration, and Adjustments).
• Next Button — Press the Next button to step through the submenus. (see the Menus,
Configuration, and Adjustments).
• Power Button — Power up or power down the VTG 300 by holding down the Power
button for one second.
NOTE: If the Power button is held down for more than three seconds, the VTG will
automatically turn off. This feature will prevent the VTG from being left on
unintentionally should the power button be unknowingly pressed.
Video buttons (right side):
• Test Patterns Button (video test patterns) — Press this button to select from among
13 different test patterns in six categories (see Selecting a Video Test Pattern), as
indicated by green LEDs to the left of each category:
• crosshatch (X-hatch) • grayscale
• H pattern • alternating pixels/multiburst (Alt./Multi)
• color bars (Col. Bars) • white eld (Wht. Field)
• Range Button (video output range) — Select the video output signal range, as
indicated by green LEDs to the left: computer scan rates (PC), video scan rates (Video),
HDTV scan rates (HDTV), or 16:9 HR scan rates.
• Rate Button (video output rate adjustment) — Press the button or button to
vary the scan rate for a selected output range.
• Select (video output rate) — Select and activate the desired output rate for a given
range by pressing this button.
VTG 300/300R • Operation 3

Left Side Panel LED (VTG 300R model only)
Battery charge status LED — The amber LED lights steadily
CHARGE
STATUS
Left side panel
Battery
charge
LED
when the VTG is being charged, and blinks steadily when the
VTG is fully charged.
Right Side Panel Power Input
12 VDC power input — The included external 12 VDC,
12 VDC 1A
Right side panel
12 VDC
Power
Input
100 VAC to 240 VAC, 50/60 Hz power supply plugs into this
connector located on the right side panel.
Top Panel Video Output
RGB/R-Y, Y, B-Y output — RGBHV, RGBS, RGsB, RsGsBs, and
component video are output through the 15-pin HD connector.
RGB/R-Y,Y,B-Y S-VIDEO COMPOSITE
VIDEO
Top panel
NOTE: For NTSC/PAL rates, the component video output is
intended for signal verification and alignment, and
should not be used as a reference.
S-video output — S-video is output through the 4-pin mini DIN connector.
Composite video output — Composite video is output through the BNC connector.
Bottom Panel Audio Output
Output 1: RCA jack — Unbalanced mono audio is output
AUDIO
3
2
1
Bottom panel
from this female jack.
Output 2: 3-pin XLR connector — Balanced mono audio
is output from this male connector.
Output 3: 3.5 mm mini stereo phone jack — Unbalanced
mono audio on both left and right channels is output from this female mini phone jack.
NOTE: See Connecting Audio Outputs for audio wiring instructions.
VTG 300/300R • Operation 4

Example Applications
Figure 1 shows examples using the video and audio testing features of the VTG.
AUDIO
3
2
1
RGB/Y,R-Y,R-Y S-VIDEO COMPOSITE
VIDEO
VTG 300R
VIDEO &AUDIO TEST GENERATOR
AUDIO
SIGNAL
TEST
PATTERNS
RANGE
OUTPUT RATE
RATE
MENU
NEXT
POWER
SELECT
LEVEL
FREQUENCY
VIDEO
P.NOISE
W. NOISE
SINE
SQUARE
POLARITY
SWEEP
CROSSHATCH
H.PA TTERN
COLOR BARS
GRAYSCALE
ALT/ MULTI
WHITE FIELD
PC
VIDEO
HDTV
16:9 HR
Extron
VTG 300R
Video and Audio Test Generator
Front view
Top view
Bottom view
Extron 15 pin HD
VGA Cable
Extron
MLS 406MA
MediaLink
Switcher
RS-232/MLC/IR
INPUT 4
AUDIO INPUTS
LINE LEVEL
MONO
AUDIO
AUDIO
Tx Rx IR 12V
ABC
LINEOUT PREAMP
AUX/MIX
ADJUST
-42dB
TO
+24dB
L
R
L
R
L
R
123
INPUTS
OUTPUTS
VIDEO HV
B
G
R
Y
123
INPUTS
MONITOR OUT
45
6
C
100-240V
1.0AMAX.
50-60Hz
AMPLIFIED OUTPUT
20WATTS MONO
DIRECT
XFMR
COM
4/8 ohm
100V
70V
EXTRON VTG 300R
SCANS 15-127KhZ
70V Mono Distribution
Figure 1. Using the Video and Audio Testing Features
Connecting Audio Outputs
The VTG has three types of audio output connectors: an RCA jack, a 3-pin XLR connector,
and a 3.5 mm mini stereo phone jack.
Output 1
Tip (+)
Sleeve ( )
Audio Plugs.eps
RCA Connector
Unbalanced mono audio is output from this connector.
Wire the RCA connector as shown here.
Output 2
Balanced mono audio is output from this connector. Wire the female XLR
2
3
1
connector as shown here.
3-pin XLR Pin Configuration
Application Pin 1 Pin 2 Pin 3
Balanced audio (std.) gnd (shield)
(on sending female connector)
positive (+)
(hot/live)
negative (-)
(cold/return)
Output 3
Sleeve ( )
Ring (R)
Tip (L)
Unbalanced mono audio on both left and right channels
is output from this connector. Wire the mini phono plug
as shown here (see the Output 3 submenu section on
page 8).
VTG 300/300R • Operation 5

Menus, Configuration, and Adjustments
VTG configuration and adjustments are performed by using the front panel controls and the
menus that are displayed on the LCD screen.
Moving Through Menus by Using Front Panel Controls
• Menu button — Press the Menu button to step through the main menus. After 20
seconds of inactivity, the VTG will time-out and return to the default menu cycle.
• Next button — Press the Next button to move between the submenus of a selected
main menu.
• Up () and Down () buttons — Use any of these buttons (Level, Frequency, or Rate),
to increase () or decrease () submenu values, or to alternate between submenu
options. Refer to the flowcharts in this chapter and to specific sections for explanations
on submenu adjustments.
Default Menu
The default menus appear on the LCD when no adjustments are actively being made. They
cycle between the screens showing the currently selected horizontal scan frequency of the
video output signal, the audio output level, and the audio frequency, as shown below.
VGA 31.5kHz
640x480 @60
Power
on
3 sec.
3 sec. 3 sec.
AUDIO LEVEL
-10dBu 245mV
AUDIO FREQ.
800 Hz
60-543-02
FW Ver. 2.04
EXTRON
VTG 300R
Figure 2. Default Menu Cycle
NOTES: • From any menu or submenu, after 20 seconds of inactivity the VTG will save
all adjustment settings and time out to the default menus.
• A different default menu is displayed when the screen saver option is active
(see Screen saver timer submenu (ScrSvr Timer) on page 10).
• If an output was disabled at power up, the menu will display “Audio
disabled” or “Video disabled” instead of the normal menu (see Enable at
power up submenu (Enable@PwrUp) on page 12.
VTG 300/300R • Operation 6

Main Menus
The main menus are shown in the following flowchart. Use the Menu button to step
between main menus.
AUDIO
SETUP
MENU
MENU
TEST PATTERN
SETUP
MENU
VIDEO
SETUP
MENU
ADVANCED
SETUP
MENU
NEXT
MENU
TO EXIT MENU
PRESS NEXT
Power
on
60-543-02
FW Ver. 2.04
EXTRON
VTG 300R
VGA 31.5kHz
640x480 @60
3 sec.
3 sec. 3 sec.
AUDIO LEVEL
-10dBu 245mV
AUDIO FREQ.
800 Hz
NOTES: •If you press the
Menu button while
a submenu is active,
the next main menu
will become active
• To return to the
default menu cycle,
let the VTG time-
out for 20 seconds,
or press the Menu
button until the
Exit Menu menu
appears, then press
the Next button.
Figure 3. Main Menus for the VTG 300/300R
Test Pattern Setup Menu
The following flowchart illustrates the Test Pattern Setup menu.
Extron
VTG 300R
TEST PATTERN
SETUP
MENU
NEXT Grayscale
32-Level
White Field
Window 20%
NEXT
NEXT
Grayscale test patterns
• 32-level split (default)
• Ramp
White field test patterns
• Full field (default)
• 80% window
• 20% window
Figure 4. Test Pattern Setup Menu
Grayscale submenu
Select the grayscale test pattern from among two types.
Press any or button to select from the different test patterns:
• 32-level split bars (default) — to set grayscale tracking and evaluate contrast linearity.
• Ramp — to evaluate pixel bit depth capability.
VTG 300/300R • Operation 7

White field submenu
There are three types of white field test patterns.
Press any or button to select the test pattern:
• Full field (default) — evaluate white field and color uniformity.
• 80% window — fine tune color balance and gain (drive) for each of the red, green,
and/or blue color adjustments.
• 20% window — fine tune color balance and bias (offset) for each of the red, green, or
blue color adjustments.
Audio Setup Menu
The following flowchart illustrates the Audio Setup menu.
Extron
VTG 300R
AUDIO
SETUP
MENU
NEXT Units
dBu
Output 3
LEFT ONLY
NEXT
NEXT
Audio level units
• dBV
• dBu
Audio output
• Both left+right channels
• Right channel only
• Left channel only
Figure 5. Audio Setup Menu
Audio units submenu (Units)
The audio level scale is selectable.
Press any or button to select from the different audio level units:
• dBV
• dBu (default)
Output 3 submenu
Output 3 may be set to output audio through the left and/or right channels.
Press any or button to select the audio output from
Output 3’s phono jack:
• Left and right channel (default) — output audio from both left and right channels of
Output 3.
• Right only — output audio from the right channel and disable the left channel, and
disable Output 1 (RCA) and Output 2 (XLR).
• Left only — output audio from left channel only and disable the right channel.
VTG 300/300R • Operation 8

Video Setup Menu
The following flowchart provides an overview of the Video Setup menu.
Extron
VTG 300R
VIDEO
SETUP
MENU
NEXT HD15 Format
RGB
NEXT
NEXT RGB Sync Fmt
RGBHV
NEXT
RasterBorder
On
HD15 Video formats
• RGB (default)
• Y, R-Y, B-Y
RGB Sync formats
• RGBHV (default)
• RsGsBs
• RGsB
• RGBS
Raster Border
• On
• Off (default)
Figure 6. Video Setup menu
HD15 Video format submenu (HD15 Format)
There are two video formats that can be output from the 15-pin HD connector.
Press any or button to select from among the formats:
• RGB (default)
• Y, R-Y, B-Y
RGB Sync format submenu (RGB Sync Fmt)
The VTG offers a choice of four RGB sync formats. Press any or button to select from
among the formats:
• RGBHV (default)
• RGBS
• RGsB
• RsGsBs
Raster border submenu (RasterBorder)
A white border may be placed around the active area of a video signal. Press any or 
button to enable (On) or disable (Off) the border:
• On
• Off (default)
VTG 300/300R • Operation 9

Advanced Setup Menu
The following flowchart provides an overview of the Advanced Setup menu.
Extron
VTG 300R
ADVANCED
SETUP
MENU
NEXT PwrOff Timer
15 min
NEXT
NEXT ScrSvr Timer
Disabled
NEXT NEXT
NEXT
Enable@PwrUp
Last Used
Press & Hold
& to reset
Power Off Timer
• Disabled
• 5 minutes
• 15 minutes (default)
• 30 minutes
Screen Saver Timer
• Disabled (default)
• 5 minutes
• 10 minutes
• 15 minutes
Enable Outputs at Power Up
• Last Used (default)
• Vid Only
• Aud Only
• Aud+Vid
Unit Reset
• Simultaneously press and
hold any of the three and
button pairs for two seconds
to reset the VTG to factory
default settings.
ScrSvr Mode
CYCLE
Select Screen Saver
• Blank - black screen
• Cycle - cycles through all
six test pattern categories
Figure 7. Advanced Setup Menu
Power off timer submenu (PwrOff Timer)
When enabled, this feature allows the VTG to be automatically powered off after a certain
period of button inactivity has elapsed. This power off feature conserves battery power.
NOTE: When the VTG is powered by the external power supply, this power off feature is
disabled.
Press any or button to select from among the power off timer options:
• Disable - disable this timer feature
• 5-minute power off time out
• 15-minute power off time out (default)
• 30-minute power off time out
Screen saver timer submenu (ScrSvr Timer)
This feature protects against CRT/plasma burn-in. When enabled, this feature allows the
VTG to set the screen saver inactivity timer. This timer will activate the screen saver after the
selected timer interval has elapsed without any button being pressed. See the Screen saver
mode submenu (ScrSvr) description in this chapter for selecting a screen saver display.
Press any or button to select from among the screen saver timer options:
• Disable - disable this timer feature (default)
• 5-minute screen saver time out
• 10-minute screen saver time out
• 15-minute screen saver time out
Selecting any of the time outs will result in a modified default menu cycle, as shown in
figure 8. While timed out, pressing any front panel button will cancel (disable) the time out.
VTG 300/300R • Operation 10

VGA 31.5kHz
640x480 @60
Power
on
3 sec.
3 sec. 3 sec.
3 sec.
AUDIO LEVEL
-10dBu 245mV
AUDIO FREQ.
800 Hz
60-543-02
FW Ver. 2.04
EXTRON
VTG 300R
SCREEN SAVER
ACTIVE
Figure 8. Screen Saver Default Menu Cycle
Screen saver mode submenu (ScrSvr Mode)
If the screen saver timer has been enabled (see the Screen saver timer submenu), the
resulting screen saver display may be in one of two modes. The Blank mode will display
a blacked out screen, and the Cycle mode will display all six categories of test patterns at
4 second intervals.
NOTE: Although the output screen will be blacked out when the Blank screen saver
mode has been selected, the output sync will still remain active.
Press any or button to select from among the screen saver modes:
• Blank – displays a black screen
• Cycle – displays the six test pattern categories: crosshatch, H pattern, color bars,
grayscale, alternating pixels/multiburst, and white field
Figure 8 shows the modified default menu cycle whenever the screen saver feature is
activated. The additional Screen Saver Active menu will be displayed in the default menu
cycle.
VTG 300/300R • Operation 11

Enable at power up submenu (Enable@PwrUp)
This submenu only displays when the VTG is powered by batteries. When enabled, this
feature allows the VTG to set the active audio and/or video output during power up. This is a
power saving feature of the VTG. Press any or button to enable the selected outputs:
• Last used (default) – only the last used functions (audio or video) output is enabled
during power up.
• Video only (Vid) – the video outputs are enabled and the audio outputs are disabled.
• Audio only (Aud) – the audio outputs are enabled and the video outputs are disabled.
• Audio and video (Aud+Vid) – both audio and video outputs are enabled, regardless of
which outputs were last used.
NOTES: •If an output is disabled at power up, it can be reactivated by pressing one of
its function buttons.
• When the VTG is powered by the external power supply, both audio and
video outputs are enabled regardless of the setting.
Backlight submenu (BackLight)
This submenu only displays when the VTG is powered by batteries. When set to off (default),
this feature does not illuminate the backlight of the LCD. This is a power saving feature of
the VTG to extend battery life. Press any or  button to turn the backlight on. When set
on, the backlight goes inactive (the backlight goes off, but the backlight status is still set on)
after 2 seconds of button inactivity, but will light again when any button is pressed.
NOTE: When the VTG is powered by both the external power supply and batteries, the
external power supply provides the power, not the batteries.
Unit Reset submenu (Press & Hold)
The VTG can be reset to factory default values. Any of the adjacent or button pairs
(Level, Frequency, or Rate) will activate the reset.
Press and hold both or  buttons simultaneously for two seconds to reset the VTG to its
factory defaults.
• The message “Unit Reset to Factory Defs “ will be displayed.
VTG 300/300R • Operation 12

Exit Menu
The flowchart in figure 9 describes the Exit menu.
Pressing the Next button from this menu will return you to the default menu cycle.
AUDIO
SETUP
MENU
MENU
VIDEO
SETUP
MENU
ADVANCED
SETUP
MENU
NEXT
MENU
TO EXIT MENU
PRESS NEXT
60-543-02
FW Ver. 2.04
EXTRON
VTG 300R
VGA 31.5kHz
640x480 @60
3 sec.
3 sec. 3 sec.
AUDIO LEVEL
-10dBu 245mV
AUDIO FREQ.
800 Hz
Figure 9. Exit Menu
Additional Functions
In addition to the main menu system, there are several other functions that are featured by
the VTG. A low battery warning message and a button lock mode that locks out all front
panel buttons, except the power button, are also featured.
Low Battery Mode
When the batteries in the VTG are low and the external power supply is not connected, the
message “Warning: Battery Low!” flashes on the LCD for one second every 30 seconds.
To end this cycle, the external power supply needs to be connected or the batteries need to
be recharged or replaced (see Installing the VTG 300 Batteries on page 20).
Power
on
60-543-02
FW Ver. 2.04
EXTRON
VTG 300R
* WARNING: *
BATTERY LOW!
VGA 31.5kHz
640x480 @60
3 sec.
3 sec. 3 sec.
AUDIO LEVEL
-10dBu 245mV
AUDIO FREQ.
800 Hz
Figure 10. Low Battery Warning Mode
VTG 300/300R • Operation 13

Button Lock Mode
To prevent accidental changes to settings, simultaneously press and hold the Signal and
the Test Patterns buttons for two seconds to enable the VTG’s Button Lock mode (see the
figure 11). Button Lock mode locks all front panel buttons except Power. When Button Lock
mode has been enabled, the message “Button Lock Enabled” is displayed for 2 seconds
before the VTG returns to the default cycle.
Power
on
60-543-02
FW Ver. 2.04
EXTRON
VTG 300R
Button Lock
Enabled
Button Lock
Disabled
SIGNAL
TEST
PATTERNS
Simultaneously press both buttons for
two seconds to enable button lock mode
SIGNAL
TEST
PATTERNS
Simultaneously press both buttons for
two seconds to disable button lock mode
VGA 31.5kHz
640x480 @60
3 sec.
3 sec. 3 sec.
AUDIO LEVEL
-10dBu 245mV
AUDIO FREQ.
800 Hz
Figure 11. Button Lock Mode
NOTE: When the VTG is in Button Lock mode and powered off and then on again, the
VTG will still remain in Button Lock mode until that mode is disabled.
To disable Button Lock mode, simultaneously press and hold the Signal and the Test
Patterns buttons for two seconds. When Button Lock mode has been disabled, the message
“Button Lock Disabled” is displayed for 2 seconds before the VTG returns to the default
cycle.
VTG 300/300R • Operation 14